Uploaded Test files
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16627 changed files with 2065359 additions and 102444 deletions
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import StringStream from "../../util/StringStream.js"
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import * as modeMethods from "../../modes.js"
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// declare global: globalThis, CodeMirror
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// Create a minimal CodeMirror needed to use runMode, and assign to root.
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var root = typeof globalThis !== 'undefined' ? globalThis : window
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root.CodeMirror = {}
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// Copy StringStream and mode methods into CodeMirror object.
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CodeMirror.StringStream = StringStream
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for (var exported in modeMethods) CodeMirror[exported] = modeMethods[exported]
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// Minimal default mode.
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CodeMirror.defineMode("null", () => ({token: stream => stream.skipToEnd()}))
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CodeMirror.defineMIME("text/plain", "null")
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CodeMirror.registerHelper = CodeMirror.registerGlobalHelper = Math.min
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CodeMirror.splitLines = function(string) { return string.split(/\r?\n|\r/) }
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CodeMirror.defaults = { indentUnit: 2 }
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export default CodeMirror
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import StringStream from "../../util/StringStream.js"
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import * as modeMethods from "../../modes.js"
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import {countColumn} from "../../util/misc.js"
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// Copy StringStream and mode methods into exports (CodeMirror) object.
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exports.StringStream = StringStream
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exports.countColumn = countColumn
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for (var exported in modeMethods) exports[exported] = modeMethods[exported]
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// Shim library CodeMirror with the minimal CodeMirror defined above.
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require.cache[require.resolve("../../lib/codemirror")] = require.cache[require.resolve("./runmode.node")]
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require.cache[require.resolve("../../addon/runmode/runmode")] = require.cache[require.resolve("./runmode.node")]
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// Minimal default mode.
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exports.defineMode("null", () => ({token: stream => stream.skipToEnd()}))
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exports.defineMIME("text/plain", "null")
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exports.registerHelper = exports.registerGlobalHelper = Math.min
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exports.splitLines = function(string) { return string.split(/\r?\n|\r/) }
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exports.defaults = { indentUnit: 2 }
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import "./codemirror-standalone.js"
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import "../../../addon/runmode/runmode.js"
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import "./codemirror.node.js"
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import "../../../addon/runmode/runmode.js"
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import { CodeMirror } from "./edit/main.js"
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export default CodeMirror
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import { gecko, ie, ie_version, mobile, webkit } from "../util/browser.js"
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import { elt, eltP } from "../util/dom.js"
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import { scrollerGap } from "../util/misc.js"
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import { getGutters, renderGutters } from "./gutters.js"
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// The display handles the DOM integration, both for input reading
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// and content drawing. It holds references to DOM nodes and
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// display-related state.
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export function Display(place, doc, input, options) {
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let d = this
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this.input = input
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// Covers bottom-right square when both scrollbars are present.
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d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
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d.scrollbarFiller.setAttribute("cm-not-content", "true")
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// Covers bottom of gutter when coverGutterNextToScrollbar is on
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// and h scrollbar is present.
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d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
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d.gutterFiller.setAttribute("cm-not-content", "true")
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// Will contain the actual code, positioned to cover the viewport.
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d.lineDiv = eltP("div", null, "CodeMirror-code")
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// Elements are added to these to represent selection and cursors.
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d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
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d.cursorDiv = elt("div", null, "CodeMirror-cursors")
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// A visibility: hidden element used to find the size of things.
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d.measure = elt("div", null, "CodeMirror-measure")
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// When lines outside of the viewport are measured, they are drawn in this.
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d.lineMeasure = elt("div", null, "CodeMirror-measure")
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// Wraps everything that needs to exist inside the vertically-padded coordinate system
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d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
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null, "position: relative; outline: none")
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let lines = eltP("div", [d.lineSpace], "CodeMirror-lines")
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// Moved around its parent to cover visible view.
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d.mover = elt("div", [lines], null, "position: relative")
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// Set to the height of the document, allowing scrolling.
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d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
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d.sizerWidth = null
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// Behavior of elts with overflow: auto and padding is
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// inconsistent across browsers. This is used to ensure the
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// scrollable area is big enough.
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d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
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// Will contain the gutters, if any.
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d.gutters = elt("div", null, "CodeMirror-gutters")
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d.lineGutter = null
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// Actual scrollable element.
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d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
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d.scroller.setAttribute("tabIndex", "-1")
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// The element in which the editor lives.
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d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
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// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
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if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
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if (!webkit && !(gecko && mobile)) d.scroller.draggable = true
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if (place) {
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if (place.appendChild) place.appendChild(d.wrapper)
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else place(d.wrapper)
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}
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// Current rendered range (may be bigger than the view window).
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d.viewFrom = d.viewTo = doc.first
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d.reportedViewFrom = d.reportedViewTo = doc.first
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// Information about the rendered lines.
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d.view = []
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d.renderedView = null
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// Holds info about a single rendered line when it was rendered
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// for measurement, while not in view.
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d.externalMeasured = null
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// Empty space (in pixels) above the view
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d.viewOffset = 0
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d.lastWrapHeight = d.lastWrapWidth = 0
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d.updateLineNumbers = null
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d.nativeBarWidth = d.barHeight = d.barWidth = 0
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d.scrollbarsClipped = false
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// Used to only resize the line number gutter when necessary (when
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// the amount of lines crosses a boundary that makes its width change)
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d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
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// Set to true when a non-horizontal-scrolling line widget is
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// added. As an optimization, line widget aligning is skipped when
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// this is false.
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d.alignWidgets = false
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d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
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// Tracks the maximum line length so that the horizontal scrollbar
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// can be kept static when scrolling.
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d.maxLine = null
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d.maxLineLength = 0
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d.maxLineChanged = false
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// Used for measuring wheel scrolling granularity
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d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
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// True when shift is held down.
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d.shift = false
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// Used to track whether anything happened since the context menu
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// was opened.
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d.selForContextMenu = null
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d.activeTouch = null
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d.gutterSpecs = getGutters(options.gutters, options.lineNumbers)
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renderGutters(d)
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input.init(d)
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}
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import { restartBlink } from "./selection.js"
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import { webkit } from "../util/browser.js"
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import { addClass, rmClass } from "../util/dom.js"
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import { signal } from "../util/event.js"
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export function ensureFocus(cm) {
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if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
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}
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export function delayBlurEvent(cm) {
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cm.state.delayingBlurEvent = true
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setTimeout(() => { if (cm.state.delayingBlurEvent) {
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cm.state.delayingBlurEvent = false
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onBlur(cm)
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} }, 100)
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}
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export function onFocus(cm, e) {
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if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false
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if (cm.options.readOnly == "nocursor") return
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if (!cm.state.focused) {
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signal(cm, "focus", cm, e)
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cm.state.focused = true
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addClass(cm.display.wrapper, "CodeMirror-focused")
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// This test prevents this from firing when a context
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// menu is closed (since the input reset would kill the
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// select-all detection hack)
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if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
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cm.display.input.reset()
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if (webkit) setTimeout(() => cm.display.input.reset(true), 20) // Issue #1730
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}
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cm.display.input.receivedFocus()
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}
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restartBlink(cm)
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}
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export function onBlur(cm, e) {
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if (cm.state.delayingBlurEvent) return
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if (cm.state.focused) {
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signal(cm, "blur", cm, e)
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cm.state.focused = false
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rmClass(cm.display.wrapper, "CodeMirror-focused")
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}
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clearInterval(cm.display.blinker)
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setTimeout(() => { if (!cm.state.focused) cm.display.shift = false }, 150)
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}
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import { elt, removeChildren } from "../util/dom.js"
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import { regChange } from "./view_tracking.js"
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import { alignHorizontally } from "./line_numbers.js"
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import { updateGutterSpace } from "./update_display.js"
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export function getGutters(gutters, lineNumbers) {
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let result = [], sawLineNumbers = false
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for (let i = 0; i < gutters.length; i++) {
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let name = gutters[i], style = null
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if (typeof name != "string") { style = name.style; name = name.className }
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if (name == "CodeMirror-linenumbers") {
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if (!lineNumbers) continue
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else sawLineNumbers = true
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}
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result.push({className: name, style})
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}
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if (lineNumbers && !sawLineNumbers) result.push({className: "CodeMirror-linenumbers", style: null})
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return result
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}
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// Rebuild the gutter elements, ensure the margin to the left of the
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// code matches their width.
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export function renderGutters(display) {
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let gutters = display.gutters, specs = display.gutterSpecs
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removeChildren(gutters)
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display.lineGutter = null
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for (let i = 0; i < specs.length; ++i) {
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let {className, style} = specs[i]
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let gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className))
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if (style) gElt.style.cssText = style
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if (className == "CodeMirror-linenumbers") {
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display.lineGutter = gElt
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gElt.style.width = (display.lineNumWidth || 1) + "px"
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}
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}
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gutters.style.display = specs.length ? "" : "none"
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updateGutterSpace(display)
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}
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export function updateGutters(cm) {
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renderGutters(cm.display)
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regChange(cm)
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alignHorizontally(cm)
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}
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import { getContextBefore, highlightLine, processLine } from "../line/highlight.js"
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import { copyState } from "../modes.js"
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import { bind } from "../util/misc.js"
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import { runInOp } from "./operations.js"
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import { regLineChange } from "./view_tracking.js"
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// HIGHLIGHT WORKER
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export function startWorker(cm, time) {
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if (cm.doc.highlightFrontier < cm.display.viewTo)
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cm.state.highlight.set(time, bind(highlightWorker, cm))
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}
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function highlightWorker(cm) {
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let doc = cm.doc
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if (doc.highlightFrontier >= cm.display.viewTo) return
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let end = +new Date + cm.options.workTime
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let context = getContextBefore(cm, doc.highlightFrontier)
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let changedLines = []
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doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), line => {
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if (context.line >= cm.display.viewFrom) { // Visible
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let oldStyles = line.styles
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let resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null
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let highlighted = highlightLine(cm, line, context, true)
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if (resetState) context.state = resetState
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line.styles = highlighted.styles
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let oldCls = line.styleClasses, newCls = highlighted.classes
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if (newCls) line.styleClasses = newCls
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else if (oldCls) line.styleClasses = null
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let ischange = !oldStyles || oldStyles.length != line.styles.length ||
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oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
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for (let i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]
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if (ischange) changedLines.push(context.line)
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line.stateAfter = context.save()
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context.nextLine()
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} else {
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if (line.text.length <= cm.options.maxHighlightLength)
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processLine(cm, line.text, context)
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line.stateAfter = context.line % 5 == 0 ? context.save() : null
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context.nextLine()
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}
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if (+new Date > end) {
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startWorker(cm, cm.options.workDelay)
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return true
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}
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})
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doc.highlightFrontier = context.line
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doc.modeFrontier = Math.max(doc.modeFrontier, context.line)
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if (changedLines.length) runInOp(cm, () => {
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for (let i = 0; i < changedLines.length; i++)
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regLineChange(cm, changedLines[i], "text")
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})
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}
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import { lineNumberFor } from "../line/utils_line.js"
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import { compensateForHScroll } from "../measurement/position_measurement.js"
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import { elt } from "../util/dom.js"
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import { updateGutterSpace } from "./update_display.js"
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// Re-align line numbers and gutter marks to compensate for
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// horizontal scrolling.
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export function alignHorizontally(cm) {
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let display = cm.display, view = display.view
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if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return
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let comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
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let gutterW = display.gutters.offsetWidth, left = comp + "px"
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for (let i = 0; i < view.length; i++) if (!view[i].hidden) {
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if (cm.options.fixedGutter) {
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if (view[i].gutter)
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view[i].gutter.style.left = left
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if (view[i].gutterBackground)
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view[i].gutterBackground.style.left = left
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}
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let align = view[i].alignable
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if (align) for (let j = 0; j < align.length; j++)
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align[j].style.left = left
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}
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if (cm.options.fixedGutter)
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display.gutters.style.left = (comp + gutterW) + "px"
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}
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// Used to ensure that the line number gutter is still the right
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// size for the current document size. Returns true when an update
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// is needed.
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export function maybeUpdateLineNumberWidth(cm) {
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if (!cm.options.lineNumbers) return false
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let doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
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if (last.length != display.lineNumChars) {
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let test = display.measure.appendChild(elt("div", [elt("div", last)],
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"CodeMirror-linenumber CodeMirror-gutter-elt"))
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let innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
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display.lineGutter.style.width = ""
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display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
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display.lineNumWidth = display.lineNumInnerWidth + padding
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display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
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display.lineGutter.style.width = display.lineNumWidth + "px"
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updateGutterSpace(cm.display)
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return true
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}
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return false
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}
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import { getMode } from "../modes.js"
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import { startWorker } from "./highlight_worker.js"
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import { regChange } from "./view_tracking.js"
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// Used to get the editor into a consistent state again when options change.
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export function loadMode(cm) {
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cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
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resetModeState(cm)
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}
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export function resetModeState(cm) {
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cm.doc.iter(line => {
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if (line.stateAfter) line.stateAfter = null
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if (line.styles) line.styles = null
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})
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cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first
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startWorker(cm, 100)
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cm.state.modeGen++
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if (cm.curOp) regChange(cm)
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}
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import { clipPos } from "../line/pos.js"
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import { findMaxLine } from "../line/spans.js"
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import { displayWidth, measureChar, scrollGap } from "../measurement/position_measurement.js"
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import { signal } from "../util/event.js"
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import { activeElt } from "../util/dom.js"
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import { finishOperation, pushOperation } from "../util/operation_group.js"
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import { ensureFocus } from "./focus.js"
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import { measureForScrollbars, updateScrollbars } from "./scrollbars.js"
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import { restartBlink } from "./selection.js"
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import { maybeScrollWindow, scrollPosIntoView, setScrollLeft, setScrollTop } from "./scrolling.js"
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import { DisplayUpdate, maybeClipScrollbars, postUpdateDisplay, setDocumentHeight, updateDisplayIfNeeded } from "./update_display.js"
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import { updateHeightsInViewport } from "./update_lines.js"
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// Operations are used to wrap a series of changes to the editor
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// state in such a way that each change won't have to update the
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// cursor and display (which would be awkward, slow, and
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// error-prone). Instead, display updates are batched and then all
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// combined and executed at once.
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let nextOpId = 0
|
||||
// Start a new operation.
|
||||
export function startOperation(cm) {
|
||||
cm.curOp = {
|
||||
cm: cm,
|
||||
viewChanged: false, // Flag that indicates that lines might need to be redrawn
|
||||
startHeight: cm.doc.height, // Used to detect need to update scrollbar
|
||||
forceUpdate: false, // Used to force a redraw
|
||||
updateInput: 0, // Whether to reset the input textarea
|
||||
typing: false, // Whether this reset should be careful to leave existing text (for compositing)
|
||||
changeObjs: null, // Accumulated changes, for firing change events
|
||||
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
|
||||
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
|
||||
selectionChanged: false, // Whether the selection needs to be redrawn
|
||||
updateMaxLine: false, // Set when the widest line needs to be determined anew
|
||||
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
|
||||
scrollToPos: null, // Used to scroll to a specific position
|
||||
focus: false,
|
||||
id: ++nextOpId // Unique ID
|
||||
}
|
||||
pushOperation(cm.curOp)
|
||||
}
|
||||
|
||||
// Finish an operation, updating the display and signalling delayed events
|
||||
export function endOperation(cm) {
|
||||
let op = cm.curOp
|
||||
if (op) finishOperation(op, group => {
|
||||
for (let i = 0; i < group.ops.length; i++)
|
||||
group.ops[i].cm.curOp = null
|
||||
endOperations(group)
|
||||
})
|
||||
}
|
||||
|
||||
// The DOM updates done when an operation finishes are batched so
|
||||
// that the minimum number of relayouts are required.
|
||||
function endOperations(group) {
|
||||
let ops = group.ops
|
||||
for (let i = 0; i < ops.length; i++) // Read DOM
|
||||
endOperation_R1(ops[i])
|
||||
for (let i = 0; i < ops.length; i++) // Write DOM (maybe)
|
||||
endOperation_W1(ops[i])
|
||||
for (let i = 0; i < ops.length; i++) // Read DOM
|
||||
endOperation_R2(ops[i])
|
||||
for (let i = 0; i < ops.length; i++) // Write DOM (maybe)
|
||||
endOperation_W2(ops[i])
|
||||
for (let i = 0; i < ops.length; i++) // Read DOM
|
||||
endOperation_finish(ops[i])
|
||||
}
|
||||
|
||||
function endOperation_R1(op) {
|
||||
let cm = op.cm, display = cm.display
|
||||
maybeClipScrollbars(cm)
|
||||
if (op.updateMaxLine) findMaxLine(cm)
|
||||
|
||||
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
|
||||
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
|
||||
op.scrollToPos.to.line >= display.viewTo) ||
|
||||
display.maxLineChanged && cm.options.lineWrapping
|
||||
op.update = op.mustUpdate &&
|
||||
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
|
||||
}
|
||||
|
||||
function endOperation_W1(op) {
|
||||
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
|
||||
}
|
||||
|
||||
function endOperation_R2(op) {
|
||||
let cm = op.cm, display = cm.display
|
||||
if (op.updatedDisplay) updateHeightsInViewport(cm)
|
||||
|
||||
op.barMeasure = measureForScrollbars(cm)
|
||||
|
||||
// If the max line changed since it was last measured, measure it,
|
||||
// and ensure the document's width matches it.
|
||||
// updateDisplay_W2 will use these properties to do the actual resizing
|
||||
if (display.maxLineChanged && !cm.options.lineWrapping) {
|
||||
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
|
||||
cm.display.sizerWidth = op.adjustWidthTo
|
||||
op.barMeasure.scrollWidth =
|
||||
Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
|
||||
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
|
||||
}
|
||||
|
||||
if (op.updatedDisplay || op.selectionChanged)
|
||||
op.preparedSelection = display.input.prepareSelection()
|
||||
}
|
||||
|
||||
function endOperation_W2(op) {
|
||||
let cm = op.cm
|
||||
|
||||
if (op.adjustWidthTo != null) {
|
||||
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
|
||||
if (op.maxScrollLeft < cm.doc.scrollLeft)
|
||||
setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true)
|
||||
cm.display.maxLineChanged = false
|
||||
}
|
||||
|
||||
let takeFocus = op.focus && op.focus == activeElt()
|
||||
if (op.preparedSelection)
|
||||
cm.display.input.showSelection(op.preparedSelection, takeFocus)
|
||||
if (op.updatedDisplay || op.startHeight != cm.doc.height)
|
||||
updateScrollbars(cm, op.barMeasure)
|
||||
if (op.updatedDisplay)
|
||||
setDocumentHeight(cm, op.barMeasure)
|
||||
|
||||
if (op.selectionChanged) restartBlink(cm)
|
||||
|
||||
if (cm.state.focused && op.updateInput)
|
||||
cm.display.input.reset(op.typing)
|
||||
if (takeFocus) ensureFocus(op.cm)
|
||||
}
|
||||
|
||||
function endOperation_finish(op) {
|
||||
let cm = op.cm, display = cm.display, doc = cm.doc
|
||||
|
||||
if (op.updatedDisplay) postUpdateDisplay(cm, op.update)
|
||||
|
||||
// Abort mouse wheel delta measurement, when scrolling explicitly
|
||||
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
|
||||
display.wheelStartX = display.wheelStartY = null
|
||||
|
||||
// Propagate the scroll position to the actual DOM scroller
|
||||
if (op.scrollTop != null) setScrollTop(cm, op.scrollTop, op.forceScroll)
|
||||
|
||||
if (op.scrollLeft != null) setScrollLeft(cm, op.scrollLeft, true, true)
|
||||
// If we need to scroll a specific position into view, do so.
|
||||
if (op.scrollToPos) {
|
||||
let rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
|
||||
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
|
||||
maybeScrollWindow(cm, rect)
|
||||
}
|
||||
|
||||
// Fire events for markers that are hidden/unidden by editing or
|
||||
// undoing
|
||||
let hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
|
||||
if (hidden) for (let i = 0; i < hidden.length; ++i)
|
||||
if (!hidden[i].lines.length) signal(hidden[i], "hide")
|
||||
if (unhidden) for (let i = 0; i < unhidden.length; ++i)
|
||||
if (unhidden[i].lines.length) signal(unhidden[i], "unhide")
|
||||
|
||||
if (display.wrapper.offsetHeight)
|
||||
doc.scrollTop = cm.display.scroller.scrollTop
|
||||
|
||||
// Fire change events, and delayed event handlers
|
||||
if (op.changeObjs)
|
||||
signal(cm, "changes", cm, op.changeObjs)
|
||||
if (op.update)
|
||||
op.update.finish()
|
||||
}
|
||||
|
||||
// Run the given function in an operation
|
||||
export function runInOp(cm, f) {
|
||||
if (cm.curOp) return f()
|
||||
startOperation(cm)
|
||||
try { return f() }
|
||||
finally { endOperation(cm) }
|
||||
}
|
||||
// Wraps a function in an operation. Returns the wrapped function.
|
||||
export function operation(cm, f) {
|
||||
return function() {
|
||||
if (cm.curOp) return f.apply(cm, arguments)
|
||||
startOperation(cm)
|
||||
try { return f.apply(cm, arguments) }
|
||||
finally { endOperation(cm) }
|
||||
}
|
||||
}
|
||||
// Used to add methods to editor and doc instances, wrapping them in
|
||||
// operations.
|
||||
export function methodOp(f) {
|
||||
return function() {
|
||||
if (this.curOp) return f.apply(this, arguments)
|
||||
startOperation(this)
|
||||
try { return f.apply(this, arguments) }
|
||||
finally { endOperation(this) }
|
||||
}
|
||||
}
|
||||
export function docMethodOp(f) {
|
||||
return function() {
|
||||
let cm = this.cm
|
||||
if (!cm || cm.curOp) return f.apply(this, arguments)
|
||||
startOperation(cm)
|
||||
try { return f.apply(this, arguments) }
|
||||
finally { endOperation(cm) }
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,115 @@
|
|||
import { chrome, gecko, ie, mac, presto, safari, webkit } from "../util/browser.js"
|
||||
import { e_preventDefault } from "../util/event.js"
|
||||
|
||||
import { updateDisplaySimple } from "./update_display.js"
|
||||
import { setScrollLeft, updateScrollTop } from "./scrolling.js"
|
||||
|
||||
// Since the delta values reported on mouse wheel events are
|
||||
// unstandardized between browsers and even browser versions, and
|
||||
// generally horribly unpredictable, this code starts by measuring
|
||||
// the scroll effect that the first few mouse wheel events have,
|
||||
// and, from that, detects the way it can convert deltas to pixel
|
||||
// offsets afterwards.
|
||||
//
|
||||
// The reason we want to know the amount a wheel event will scroll
|
||||
// is that it gives us a chance to update the display before the
|
||||
// actual scrolling happens, reducing flickering.
|
||||
|
||||
let wheelSamples = 0, wheelPixelsPerUnit = null
|
||||
// Fill in a browser-detected starting value on browsers where we
|
||||
// know one. These don't have to be accurate -- the result of them
|
||||
// being wrong would just be a slight flicker on the first wheel
|
||||
// scroll (if it is large enough).
|
||||
if (ie) wheelPixelsPerUnit = -.53
|
||||
else if (gecko) wheelPixelsPerUnit = 15
|
||||
else if (chrome) wheelPixelsPerUnit = -.7
|
||||
else if (safari) wheelPixelsPerUnit = -1/3
|
||||
|
||||
function wheelEventDelta(e) {
|
||||
let dx = e.wheelDeltaX, dy = e.wheelDeltaY
|
||||
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail
|
||||
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail
|
||||
else if (dy == null) dy = e.wheelDelta
|
||||
return {x: dx, y: dy}
|
||||
}
|
||||
export function wheelEventPixels(e) {
|
||||
let delta = wheelEventDelta(e)
|
||||
delta.x *= wheelPixelsPerUnit
|
||||
delta.y *= wheelPixelsPerUnit
|
||||
return delta
|
||||
}
|
||||
|
||||
export function onScrollWheel(cm, e) {
|
||||
let delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
|
||||
|
||||
let display = cm.display, scroll = display.scroller
|
||||
// Quit if there's nothing to scroll here
|
||||
let canScrollX = scroll.scrollWidth > scroll.clientWidth
|
||||
let canScrollY = scroll.scrollHeight > scroll.clientHeight
|
||||
if (!(dx && canScrollX || dy && canScrollY)) return
|
||||
|
||||
// Webkit browsers on OS X abort momentum scrolls when the target
|
||||
// of the scroll event is removed from the scrollable element.
|
||||
// This hack (see related code in patchDisplay) makes sure the
|
||||
// element is kept around.
|
||||
if (dy && mac && webkit) {
|
||||
outer: for (let cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
|
||||
for (let i = 0; i < view.length; i++) {
|
||||
if (view[i].node == cur) {
|
||||
cm.display.currentWheelTarget = cur
|
||||
break outer
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// On some browsers, horizontal scrolling will cause redraws to
|
||||
// happen before the gutter has been realigned, causing it to
|
||||
// wriggle around in a most unseemly way. When we have an
|
||||
// estimated pixels/delta value, we just handle horizontal
|
||||
// scrolling entirely here. It'll be slightly off from native, but
|
||||
// better than glitching out.
|
||||
if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
|
||||
if (dy && canScrollY)
|
||||
updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit))
|
||||
setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit))
|
||||
// Only prevent default scrolling if vertical scrolling is
|
||||
// actually possible. Otherwise, it causes vertical scroll
|
||||
// jitter on OSX trackpads when deltaX is small and deltaY
|
||||
// is large (issue #3579)
|
||||
if (!dy || (dy && canScrollY))
|
||||
e_preventDefault(e)
|
||||
display.wheelStartX = null // Abort measurement, if in progress
|
||||
return
|
||||
}
|
||||
|
||||
// 'Project' the visible viewport to cover the area that is being
|
||||
// scrolled into view (if we know enough to estimate it).
|
||||
if (dy && wheelPixelsPerUnit != null) {
|
||||
let pixels = dy * wheelPixelsPerUnit
|
||||
let top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
|
||||
if (pixels < 0) top = Math.max(0, top + pixels - 50)
|
||||
else bot = Math.min(cm.doc.height, bot + pixels + 50)
|
||||
updateDisplaySimple(cm, {top: top, bottom: bot})
|
||||
}
|
||||
|
||||
if (wheelSamples < 20) {
|
||||
if (display.wheelStartX == null) {
|
||||
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
|
||||
display.wheelDX = dx; display.wheelDY = dy
|
||||
setTimeout(() => {
|
||||
if (display.wheelStartX == null) return
|
||||
let movedX = scroll.scrollLeft - display.wheelStartX
|
||||
let movedY = scroll.scrollTop - display.wheelStartY
|
||||
let sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
|
||||
(movedX && display.wheelDX && movedX / display.wheelDX)
|
||||
display.wheelStartX = display.wheelStartY = null
|
||||
if (!sample) return
|
||||
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
|
||||
++wheelSamples
|
||||
}, 200)
|
||||
} else {
|
||||
display.wheelDX += dx; display.wheelDY += dy
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,193 @@
|
|||
import { addClass, elt, rmClass } from "../util/dom.js"
|
||||
import { on } from "../util/event.js"
|
||||
import { scrollGap, paddingVert } from "../measurement/position_measurement.js"
|
||||
import { ie, ie_version, mac, mac_geMountainLion } from "../util/browser.js"
|
||||
import { updateHeightsInViewport } from "./update_lines.js"
|
||||
import { Delayed } from "../util/misc.js"
|
||||
|
||||
import { setScrollLeft, updateScrollTop } from "./scrolling.js"
|
||||
|
||||
// SCROLLBARS
|
||||
|
||||
// Prepare DOM reads needed to update the scrollbars. Done in one
|
||||
// shot to minimize update/measure roundtrips.
|
||||
export function measureForScrollbars(cm) {
|
||||
let d = cm.display, gutterW = d.gutters.offsetWidth
|
||||
let docH = Math.round(cm.doc.height + paddingVert(cm.display))
|
||||
return {
|
||||
clientHeight: d.scroller.clientHeight,
|
||||
viewHeight: d.wrapper.clientHeight,
|
||||
scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
|
||||
viewWidth: d.wrapper.clientWidth,
|
||||
barLeft: cm.options.fixedGutter ? gutterW : 0,
|
||||
docHeight: docH,
|
||||
scrollHeight: docH + scrollGap(cm) + d.barHeight,
|
||||
nativeBarWidth: d.nativeBarWidth,
|
||||
gutterWidth: gutterW
|
||||
}
|
||||
}
|
||||
|
||||
class NativeScrollbars {
|
||||
constructor(place, scroll, cm) {
|
||||
this.cm = cm
|
||||
let vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
|
||||
let horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
|
||||
vert.tabIndex = horiz.tabIndex = -1
|
||||
place(vert); place(horiz)
|
||||
|
||||
on(vert, "scroll", () => {
|
||||
if (vert.clientHeight) scroll(vert.scrollTop, "vertical")
|
||||
})
|
||||
on(horiz, "scroll", () => {
|
||||
if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal")
|
||||
})
|
||||
|
||||
this.checkedZeroWidth = false
|
||||
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
|
||||
if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px"
|
||||
}
|
||||
|
||||
update(measure) {
|
||||
let needsH = measure.scrollWidth > measure.clientWidth + 1
|
||||
let needsV = measure.scrollHeight > measure.clientHeight + 1
|
||||
let sWidth = measure.nativeBarWidth
|
||||
|
||||
if (needsV) {
|
||||
this.vert.style.display = "block"
|
||||
this.vert.style.bottom = needsH ? sWidth + "px" : "0"
|
||||
let totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
|
||||
// A bug in IE8 can cause this value to be negative, so guard it.
|
||||
this.vert.firstChild.style.height =
|
||||
Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
|
||||
} else {
|
||||
this.vert.style.display = ""
|
||||
this.vert.firstChild.style.height = "0"
|
||||
}
|
||||
|
||||
if (needsH) {
|
||||
this.horiz.style.display = "block"
|
||||
this.horiz.style.right = needsV ? sWidth + "px" : "0"
|
||||
this.horiz.style.left = measure.barLeft + "px"
|
||||
let totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
|
||||
this.horiz.firstChild.style.width =
|
||||
Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
|
||||
} else {
|
||||
this.horiz.style.display = ""
|
||||
this.horiz.firstChild.style.width = "0"
|
||||
}
|
||||
|
||||
if (!this.checkedZeroWidth && measure.clientHeight > 0) {
|
||||
if (sWidth == 0) this.zeroWidthHack()
|
||||
this.checkedZeroWidth = true
|
||||
}
|
||||
|
||||
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
|
||||
}
|
||||
|
||||
setScrollLeft(pos) {
|
||||
if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos
|
||||
if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz")
|
||||
}
|
||||
|
||||
setScrollTop(pos) {
|
||||
if (this.vert.scrollTop != pos) this.vert.scrollTop = pos
|
||||
if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert, "vert")
|
||||
}
|
||||
|
||||
zeroWidthHack() {
|
||||
let w = mac && !mac_geMountainLion ? "12px" : "18px"
|
||||
this.horiz.style.height = this.vert.style.width = w
|
||||
this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
|
||||
this.disableHoriz = new Delayed
|
||||
this.disableVert = new Delayed
|
||||
}
|
||||
|
||||
enableZeroWidthBar(bar, delay, type) {
|
||||
bar.style.pointerEvents = "auto"
|
||||
function maybeDisable() {
|
||||
// To find out whether the scrollbar is still visible, we
|
||||
// check whether the element under the pixel in the bottom
|
||||
// right corner of the scrollbar box is the scrollbar box
|
||||
// itself (when the bar is still visible) or its filler child
|
||||
// (when the bar is hidden). If it is still visible, we keep
|
||||
// it enabled, if it's hidden, we disable pointer events.
|
||||
let box = bar.getBoundingClientRect()
|
||||
let elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
|
||||
: document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1)
|
||||
if (elt != bar) bar.style.pointerEvents = "none"
|
||||
else delay.set(1000, maybeDisable)
|
||||
}
|
||||
delay.set(1000, maybeDisable)
|
||||
}
|
||||
|
||||
clear() {
|
||||
let parent = this.horiz.parentNode
|
||||
parent.removeChild(this.horiz)
|
||||
parent.removeChild(this.vert)
|
||||
}
|
||||
}
|
||||
|
||||
class NullScrollbars {
|
||||
update() { return {bottom: 0, right: 0} }
|
||||
setScrollLeft() {}
|
||||
setScrollTop() {}
|
||||
clear() {}
|
||||
}
|
||||
|
||||
export function updateScrollbars(cm, measure) {
|
||||
if (!measure) measure = measureForScrollbars(cm)
|
||||
let startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
|
||||
updateScrollbarsInner(cm, measure)
|
||||
for (let i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
|
||||
if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
|
||||
updateHeightsInViewport(cm)
|
||||
updateScrollbarsInner(cm, measureForScrollbars(cm))
|
||||
startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
|
||||
}
|
||||
}
|
||||
|
||||
// Re-synchronize the fake scrollbars with the actual size of the
|
||||
// content.
|
||||
function updateScrollbarsInner(cm, measure) {
|
||||
let d = cm.display
|
||||
let sizes = d.scrollbars.update(measure)
|
||||
|
||||
d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
|
||||
d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
|
||||
d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
|
||||
|
||||
if (sizes.right && sizes.bottom) {
|
||||
d.scrollbarFiller.style.display = "block"
|
||||
d.scrollbarFiller.style.height = sizes.bottom + "px"
|
||||
d.scrollbarFiller.style.width = sizes.right + "px"
|
||||
} else d.scrollbarFiller.style.display = ""
|
||||
if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
|
||||
d.gutterFiller.style.display = "block"
|
||||
d.gutterFiller.style.height = sizes.bottom + "px"
|
||||
d.gutterFiller.style.width = measure.gutterWidth + "px"
|
||||
} else d.gutterFiller.style.display = ""
|
||||
}
|
||||
|
||||
export let scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
|
||||
|
||||
export function initScrollbars(cm) {
|
||||
if (cm.display.scrollbars) {
|
||||
cm.display.scrollbars.clear()
|
||||
if (cm.display.scrollbars.addClass)
|
||||
rmClass(cm.display.wrapper, cm.display.scrollbars.addClass)
|
||||
}
|
||||
|
||||
cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](node => {
|
||||
cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
|
||||
// Prevent clicks in the scrollbars from killing focus
|
||||
on(node, "mousedown", () => {
|
||||
if (cm.state.focused) setTimeout(() => cm.display.input.focus(), 0)
|
||||
})
|
||||
node.setAttribute("cm-not-content", "true")
|
||||
}, (pos, axis) => {
|
||||
if (axis == "horizontal") setScrollLeft(cm, pos)
|
||||
else updateScrollTop(cm, pos)
|
||||
}, cm)
|
||||
if (cm.display.scrollbars.addClass)
|
||||
addClass(cm.display.wrapper, cm.display.scrollbars.addClass)
|
||||
}
|
||||
|
|
@ -0,0 +1,184 @@
|
|||
import { Pos } from "../line/pos.js"
|
||||
import { cursorCoords, displayHeight, displayWidth, estimateCoords, paddingTop, paddingVert, scrollGap, textHeight } from "../measurement/position_measurement.js"
|
||||
import { gecko, phantom } from "../util/browser.js"
|
||||
import { elt } from "../util/dom.js"
|
||||
import { signalDOMEvent } from "../util/event.js"
|
||||
|
||||
import { startWorker } from "./highlight_worker.js"
|
||||
import { alignHorizontally } from "./line_numbers.js"
|
||||
import { updateDisplaySimple } from "./update_display.js"
|
||||
|
||||
// SCROLLING THINGS INTO VIEW
|
||||
|
||||
// If an editor sits on the top or bottom of the window, partially
|
||||
// scrolled out of view, this ensures that the cursor is visible.
|
||||
export function maybeScrollWindow(cm, rect) {
|
||||
if (signalDOMEvent(cm, "scrollCursorIntoView")) return
|
||||
|
||||
let display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
|
||||
if (rect.top + box.top < 0) doScroll = true
|
||||
else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false
|
||||
if (doScroll != null && !phantom) {
|
||||
let scrollNode = elt("div", "\u200b", null, `position: absolute;
|
||||
top: ${rect.top - display.viewOffset - paddingTop(cm.display)}px;
|
||||
height: ${rect.bottom - rect.top + scrollGap(cm) + display.barHeight}px;
|
||||
left: ${rect.left}px; width: ${Math.max(2, rect.right - rect.left)}px;`)
|
||||
cm.display.lineSpace.appendChild(scrollNode)
|
||||
scrollNode.scrollIntoView(doScroll)
|
||||
cm.display.lineSpace.removeChild(scrollNode)
|
||||
}
|
||||
}
|
||||
|
||||
// Scroll a given position into view (immediately), verifying that
|
||||
// it actually became visible (as line heights are accurately
|
||||
// measured, the position of something may 'drift' during drawing).
|
||||
export function scrollPosIntoView(cm, pos, end, margin) {
|
||||
if (margin == null) margin = 0
|
||||
let rect
|
||||
if (!cm.options.lineWrapping && pos == end) {
|
||||
// Set pos and end to the cursor positions around the character pos sticks to
|
||||
// If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
|
||||
// If pos == Pos(_, 0, "before"), pos and end are unchanged
|
||||
pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos
|
||||
end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos
|
||||
}
|
||||
for (let limit = 0; limit < 5; limit++) {
|
||||
let changed = false
|
||||
let coords = cursorCoords(cm, pos)
|
||||
let endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
|
||||
rect = {left: Math.min(coords.left, endCoords.left),
|
||||
top: Math.min(coords.top, endCoords.top) - margin,
|
||||
right: Math.max(coords.left, endCoords.left),
|
||||
bottom: Math.max(coords.bottom, endCoords.bottom) + margin}
|
||||
let scrollPos = calculateScrollPos(cm, rect)
|
||||
let startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
|
||||
if (scrollPos.scrollTop != null) {
|
||||
updateScrollTop(cm, scrollPos.scrollTop)
|
||||
if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true
|
||||
}
|
||||
if (scrollPos.scrollLeft != null) {
|
||||
setScrollLeft(cm, scrollPos.scrollLeft)
|
||||
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true
|
||||
}
|
||||
if (!changed) break
|
||||
}
|
||||
return rect
|
||||
}
|
||||
|
||||
// Scroll a given set of coordinates into view (immediately).
|
||||
export function scrollIntoView(cm, rect) {
|
||||
let scrollPos = calculateScrollPos(cm, rect)
|
||||
if (scrollPos.scrollTop != null) updateScrollTop(cm, scrollPos.scrollTop)
|
||||
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft)
|
||||
}
|
||||
|
||||
// Calculate a new scroll position needed to scroll the given
|
||||
// rectangle into view. Returns an object with scrollTop and
|
||||
// scrollLeft properties. When these are undefined, the
|
||||
// vertical/horizontal position does not need to be adjusted.
|
||||
function calculateScrollPos(cm, rect) {
|
||||
let display = cm.display, snapMargin = textHeight(cm.display)
|
||||
if (rect.top < 0) rect.top = 0
|
||||
let screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
|
||||
let screen = displayHeight(cm), result = {}
|
||||
if (rect.bottom - rect.top > screen) rect.bottom = rect.top + screen
|
||||
let docBottom = cm.doc.height + paddingVert(display)
|
||||
let atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin
|
||||
if (rect.top < screentop) {
|
||||
result.scrollTop = atTop ? 0 : rect.top
|
||||
} else if (rect.bottom > screentop + screen) {
|
||||
let newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)
|
||||
if (newTop != screentop) result.scrollTop = newTop
|
||||
}
|
||||
|
||||
let screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
|
||||
let screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
|
||||
let tooWide = rect.right - rect.left > screenw
|
||||
if (tooWide) rect.right = rect.left + screenw
|
||||
if (rect.left < 10)
|
||||
result.scrollLeft = 0
|
||||
else if (rect.left < screenleft)
|
||||
result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10))
|
||||
else if (rect.right > screenw + screenleft - 3)
|
||||
result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw
|
||||
return result
|
||||
}
|
||||
|
||||
// Store a relative adjustment to the scroll position in the current
|
||||
// operation (to be applied when the operation finishes).
|
||||
export function addToScrollTop(cm, top) {
|
||||
if (top == null) return
|
||||
resolveScrollToPos(cm)
|
||||
cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top
|
||||
}
|
||||
|
||||
// Make sure that at the end of the operation the current cursor is
|
||||
// shown.
|
||||
export function ensureCursorVisible(cm) {
|
||||
resolveScrollToPos(cm)
|
||||
let cur = cm.getCursor()
|
||||
cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}
|
||||
}
|
||||
|
||||
export function scrollToCoords(cm, x, y) {
|
||||
if (x != null || y != null) resolveScrollToPos(cm)
|
||||
if (x != null) cm.curOp.scrollLeft = x
|
||||
if (y != null) cm.curOp.scrollTop = y
|
||||
}
|
||||
|
||||
export function scrollToRange(cm, range) {
|
||||
resolveScrollToPos(cm)
|
||||
cm.curOp.scrollToPos = range
|
||||
}
|
||||
|
||||
// When an operation has its scrollToPos property set, and another
|
||||
// scroll action is applied before the end of the operation, this
|
||||
// 'simulates' scrolling that position into view in a cheap way, so
|
||||
// that the effect of intermediate scroll commands is not ignored.
|
||||
function resolveScrollToPos(cm) {
|
||||
let range = cm.curOp.scrollToPos
|
||||
if (range) {
|
||||
cm.curOp.scrollToPos = null
|
||||
let from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
|
||||
scrollToCoordsRange(cm, from, to, range.margin)
|
||||
}
|
||||
}
|
||||
|
||||
export function scrollToCoordsRange(cm, from, to, margin) {
|
||||
let sPos = calculateScrollPos(cm, {
|
||||
left: Math.min(from.left, to.left),
|
||||
top: Math.min(from.top, to.top) - margin,
|
||||
right: Math.max(from.right, to.right),
|
||||
bottom: Math.max(from.bottom, to.bottom) + margin
|
||||
})
|
||||
scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop)
|
||||
}
|
||||
|
||||
// Sync the scrollable area and scrollbars, ensure the viewport
|
||||
// covers the visible area.
|
||||
export function updateScrollTop(cm, val) {
|
||||
if (Math.abs(cm.doc.scrollTop - val) < 2) return
|
||||
if (!gecko) updateDisplaySimple(cm, {top: val})
|
||||
setScrollTop(cm, val, true)
|
||||
if (gecko) updateDisplaySimple(cm)
|
||||
startWorker(cm, 100)
|
||||
}
|
||||
|
||||
export function setScrollTop(cm, val, forceScroll) {
|
||||
val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val))
|
||||
if (cm.display.scroller.scrollTop == val && !forceScroll) return
|
||||
cm.doc.scrollTop = val
|
||||
cm.display.scrollbars.setScrollTop(val)
|
||||
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val
|
||||
}
|
||||
|
||||
// Sync scroller and scrollbar, ensure the gutter elements are
|
||||
// aligned.
|
||||
export function setScrollLeft(cm, val, isScroller, forceScroll) {
|
||||
val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth))
|
||||
if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) return
|
||||
cm.doc.scrollLeft = val
|
||||
alignHorizontally(cm)
|
||||
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val
|
||||
cm.display.scrollbars.setScrollLeft(val)
|
||||
}
|
||||
|
|
@ -0,0 +1,158 @@
|
|||
import { Pos } from "../line/pos.js"
|
||||
import { visualLine } from "../line/spans.js"
|
||||
import { getLine } from "../line/utils_line.js"
|
||||
import { charCoords, cursorCoords, displayWidth, paddingH, wrappedLineExtentChar } from "../measurement/position_measurement.js"
|
||||
import { getOrder, iterateBidiSections } from "../util/bidi.js"
|
||||
import { elt } from "../util/dom.js"
|
||||
|
||||
export function updateSelection(cm) {
|
||||
cm.display.input.showSelection(cm.display.input.prepareSelection())
|
||||
}
|
||||
|
||||
export function prepareSelection(cm, primary = true) {
|
||||
let doc = cm.doc, result = {}
|
||||
let curFragment = result.cursors = document.createDocumentFragment()
|
||||
let selFragment = result.selection = document.createDocumentFragment()
|
||||
|
||||
for (let i = 0; i < doc.sel.ranges.length; i++) {
|
||||
if (!primary && i == doc.sel.primIndex) continue
|
||||
let range = doc.sel.ranges[i]
|
||||
if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue
|
||||
let collapsed = range.empty()
|
||||
if (collapsed || cm.options.showCursorWhenSelecting)
|
||||
drawSelectionCursor(cm, range.head, curFragment)
|
||||
if (!collapsed)
|
||||
drawSelectionRange(cm, range, selFragment)
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
||||
// Draws a cursor for the given range
|
||||
export function drawSelectionCursor(cm, head, output) {
|
||||
let pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
|
||||
|
||||
let cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
|
||||
cursor.style.left = pos.left + "px"
|
||||
cursor.style.top = pos.top + "px"
|
||||
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
|
||||
|
||||
if (pos.other) {
|
||||
// Secondary cursor, shown when on a 'jump' in bi-directional text
|
||||
let otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
|
||||
otherCursor.style.display = ""
|
||||
otherCursor.style.left = pos.other.left + "px"
|
||||
otherCursor.style.top = pos.other.top + "px"
|
||||
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
|
||||
}
|
||||
}
|
||||
|
||||
function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
|
||||
|
||||
// Draws the given range as a highlighted selection
|
||||
function drawSelectionRange(cm, range, output) {
|
||||
let display = cm.display, doc = cm.doc
|
||||
let fragment = document.createDocumentFragment()
|
||||
let padding = paddingH(cm.display), leftSide = padding.left
|
||||
let rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
|
||||
let docLTR = doc.direction == "ltr"
|
||||
|
||||
function add(left, top, width, bottom) {
|
||||
if (top < 0) top = 0
|
||||
top = Math.round(top)
|
||||
bottom = Math.round(bottom)
|
||||
fragment.appendChild(elt("div", null, "CodeMirror-selected", `position: absolute; left: ${left}px;
|
||||
top: ${top}px; width: ${width == null ? rightSide - left : width}px;
|
||||
height: ${bottom - top}px`))
|
||||
}
|
||||
|
||||
function drawForLine(line, fromArg, toArg) {
|
||||
let lineObj = getLine(doc, line)
|
||||
let lineLen = lineObj.text.length
|
||||
let start, end
|
||||
function coords(ch, bias) {
|
||||
return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
|
||||
}
|
||||
|
||||
function wrapX(pos, dir, side) {
|
||||
let extent = wrappedLineExtentChar(cm, lineObj, null, pos)
|
||||
let prop = (dir == "ltr") == (side == "after") ? "left" : "right"
|
||||
let ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1)
|
||||
return coords(ch, prop)[prop]
|
||||
}
|
||||
|
||||
let order = getOrder(lineObj, doc.direction)
|
||||
iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, (from, to, dir, i) => {
|
||||
let ltr = dir == "ltr"
|
||||
let fromPos = coords(from, ltr ? "left" : "right")
|
||||
let toPos = coords(to - 1, ltr ? "right" : "left")
|
||||
|
||||
let openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen
|
||||
let first = i == 0, last = !order || i == order.length - 1
|
||||
if (toPos.top - fromPos.top <= 3) { // Single line
|
||||
let openLeft = (docLTR ? openStart : openEnd) && first
|
||||
let openRight = (docLTR ? openEnd : openStart) && last
|
||||
let left = openLeft ? leftSide : (ltr ? fromPos : toPos).left
|
||||
let right = openRight ? rightSide : (ltr ? toPos : fromPos).right
|
||||
add(left, fromPos.top, right - left, fromPos.bottom)
|
||||
} else { // Multiple lines
|
||||
let topLeft, topRight, botLeft, botRight
|
||||
if (ltr) {
|
||||
topLeft = docLTR && openStart && first ? leftSide : fromPos.left
|
||||
topRight = docLTR ? rightSide : wrapX(from, dir, "before")
|
||||
botLeft = docLTR ? leftSide : wrapX(to, dir, "after")
|
||||
botRight = docLTR && openEnd && last ? rightSide : toPos.right
|
||||
} else {
|
||||
topLeft = !docLTR ? leftSide : wrapX(from, dir, "before")
|
||||
topRight = !docLTR && openStart && first ? rightSide : fromPos.right
|
||||
botLeft = !docLTR && openEnd && last ? leftSide : toPos.left
|
||||
botRight = !docLTR ? rightSide : wrapX(to, dir, "after")
|
||||
}
|
||||
add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom)
|
||||
if (fromPos.bottom < toPos.top) add(leftSide, fromPos.bottom, null, toPos.top)
|
||||
add(botLeft, toPos.top, botRight - botLeft, toPos.bottom)
|
||||
}
|
||||
|
||||
if (!start || cmpCoords(fromPos, start) < 0) start = fromPos
|
||||
if (cmpCoords(toPos, start) < 0) start = toPos
|
||||
if (!end || cmpCoords(fromPos, end) < 0) end = fromPos
|
||||
if (cmpCoords(toPos, end) < 0) end = toPos
|
||||
})
|
||||
return {start: start, end: end}
|
||||
}
|
||||
|
||||
let sFrom = range.from(), sTo = range.to()
|
||||
if (sFrom.line == sTo.line) {
|
||||
drawForLine(sFrom.line, sFrom.ch, sTo.ch)
|
||||
} else {
|
||||
let fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
|
||||
let singleVLine = visualLine(fromLine) == visualLine(toLine)
|
||||
let leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
|
||||
let rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
|
||||
if (singleVLine) {
|
||||
if (leftEnd.top < rightStart.top - 2) {
|
||||
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
|
||||
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
|
||||
} else {
|
||||
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
|
||||
}
|
||||
}
|
||||
if (leftEnd.bottom < rightStart.top)
|
||||
add(leftSide, leftEnd.bottom, null, rightStart.top)
|
||||
}
|
||||
|
||||
output.appendChild(fragment)
|
||||
}
|
||||
|
||||
// Cursor-blinking
|
||||
export function restartBlink(cm) {
|
||||
if (!cm.state.focused) return
|
||||
let display = cm.display
|
||||
clearInterval(display.blinker)
|
||||
let on = true
|
||||
display.cursorDiv.style.visibility = ""
|
||||
if (cm.options.cursorBlinkRate > 0)
|
||||
display.blinker = setInterval(() => display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden",
|
||||
cm.options.cursorBlinkRate)
|
||||
else if (cm.options.cursorBlinkRate < 0)
|
||||
display.cursorDiv.style.visibility = "hidden"
|
||||
}
|
||||
|
|
@ -0,0 +1,263 @@
|
|||
import { sawCollapsedSpans } from "../line/saw_special_spans.js"
|
||||
import { heightAtLine, visualLineEndNo, visualLineNo } from "../line/spans.js"
|
||||
import { getLine, lineNumberFor } from "../line/utils_line.js"
|
||||
import { displayHeight, displayWidth, getDimensions, paddingVert, scrollGap } from "../measurement/position_measurement.js"
|
||||
import { mac, webkit } from "../util/browser.js"
|
||||
import { activeElt, removeChildren, contains } from "../util/dom.js"
|
||||
import { hasHandler, signal } from "../util/event.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
import { buildLineElement, updateLineForChanges } from "./update_line.js"
|
||||
import { startWorker } from "./highlight_worker.js"
|
||||
import { maybeUpdateLineNumberWidth } from "./line_numbers.js"
|
||||
import { measureForScrollbars, updateScrollbars } from "./scrollbars.js"
|
||||
import { updateSelection } from "./selection.js"
|
||||
import { updateHeightsInViewport, visibleLines } from "./update_lines.js"
|
||||
import { adjustView, countDirtyView, resetView } from "./view_tracking.js"
|
||||
|
||||
// DISPLAY DRAWING
|
||||
|
||||
export class DisplayUpdate {
|
||||
constructor(cm, viewport, force) {
|
||||
let display = cm.display
|
||||
|
||||
this.viewport = viewport
|
||||
// Store some values that we'll need later (but don't want to force a relayout for)
|
||||
this.visible = visibleLines(display, cm.doc, viewport)
|
||||
this.editorIsHidden = !display.wrapper.offsetWidth
|
||||
this.wrapperHeight = display.wrapper.clientHeight
|
||||
this.wrapperWidth = display.wrapper.clientWidth
|
||||
this.oldDisplayWidth = displayWidth(cm)
|
||||
this.force = force
|
||||
this.dims = getDimensions(cm)
|
||||
this.events = []
|
||||
}
|
||||
|
||||
signal(emitter, type) {
|
||||
if (hasHandler(emitter, type))
|
||||
this.events.push(arguments)
|
||||
}
|
||||
finish() {
|
||||
for (let i = 0; i < this.events.length; i++)
|
||||
signal.apply(null, this.events[i])
|
||||
}
|
||||
}
|
||||
|
||||
export function maybeClipScrollbars(cm) {
|
||||
let display = cm.display
|
||||
if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
|
||||
display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
|
||||
display.heightForcer.style.height = scrollGap(cm) + "px"
|
||||
display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
|
||||
display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
|
||||
display.scrollbarsClipped = true
|
||||
}
|
||||
}
|
||||
|
||||
function selectionSnapshot(cm) {
|
||||
if (cm.hasFocus()) return null
|
||||
let active = activeElt()
|
||||
if (!active || !contains(cm.display.lineDiv, active)) return null
|
||||
let result = {activeElt: active}
|
||||
if (window.getSelection) {
|
||||
let sel = window.getSelection()
|
||||
if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
|
||||
result.anchorNode = sel.anchorNode
|
||||
result.anchorOffset = sel.anchorOffset
|
||||
result.focusNode = sel.focusNode
|
||||
result.focusOffset = sel.focusOffset
|
||||
}
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
||||
function restoreSelection(snapshot) {
|
||||
if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) return
|
||||
snapshot.activeElt.focus()
|
||||
if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
|
||||
snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
|
||||
let sel = window.getSelection(), range = document.createRange()
|
||||
range.setEnd(snapshot.anchorNode, snapshot.anchorOffset)
|
||||
range.collapse(false)
|
||||
sel.removeAllRanges()
|
||||
sel.addRange(range)
|
||||
sel.extend(snapshot.focusNode, snapshot.focusOffset)
|
||||
}
|
||||
}
|
||||
|
||||
// Does the actual updating of the line display. Bails out
|
||||
// (returning false) when there is nothing to be done and forced is
|
||||
// false.
|
||||
export function updateDisplayIfNeeded(cm, update) {
|
||||
let display = cm.display, doc = cm.doc
|
||||
|
||||
if (update.editorIsHidden) {
|
||||
resetView(cm)
|
||||
return false
|
||||
}
|
||||
|
||||
// Bail out if the visible area is already rendered and nothing changed.
|
||||
if (!update.force &&
|
||||
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
|
||||
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
|
||||
display.renderedView == display.view && countDirtyView(cm) == 0)
|
||||
return false
|
||||
|
||||
if (maybeUpdateLineNumberWidth(cm)) {
|
||||
resetView(cm)
|
||||
update.dims = getDimensions(cm)
|
||||
}
|
||||
|
||||
// Compute a suitable new viewport (from & to)
|
||||
let end = doc.first + doc.size
|
||||
let from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
|
||||
let to = Math.min(end, update.visible.to + cm.options.viewportMargin)
|
||||
if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom)
|
||||
if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo)
|
||||
if (sawCollapsedSpans) {
|
||||
from = visualLineNo(cm.doc, from)
|
||||
to = visualLineEndNo(cm.doc, to)
|
||||
}
|
||||
|
||||
let different = from != display.viewFrom || to != display.viewTo ||
|
||||
display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
|
||||
adjustView(cm, from, to)
|
||||
|
||||
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
|
||||
// Position the mover div to align with the current scroll position
|
||||
cm.display.mover.style.top = display.viewOffset + "px"
|
||||
|
||||
let toUpdate = countDirtyView(cm)
|
||||
if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
|
||||
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
|
||||
return false
|
||||
|
||||
// For big changes, we hide the enclosing element during the
|
||||
// update, since that speeds up the operations on most browsers.
|
||||
let selSnapshot = selectionSnapshot(cm)
|
||||
if (toUpdate > 4) display.lineDiv.style.display = "none"
|
||||
patchDisplay(cm, display.updateLineNumbers, update.dims)
|
||||
if (toUpdate > 4) display.lineDiv.style.display = ""
|
||||
display.renderedView = display.view
|
||||
// There might have been a widget with a focused element that got
|
||||
// hidden or updated, if so re-focus it.
|
||||
restoreSelection(selSnapshot)
|
||||
|
||||
// Prevent selection and cursors from interfering with the scroll
|
||||
// width and height.
|
||||
removeChildren(display.cursorDiv)
|
||||
removeChildren(display.selectionDiv)
|
||||
display.gutters.style.height = display.sizer.style.minHeight = 0
|
||||
|
||||
if (different) {
|
||||
display.lastWrapHeight = update.wrapperHeight
|
||||
display.lastWrapWidth = update.wrapperWidth
|
||||
startWorker(cm, 400)
|
||||
}
|
||||
|
||||
display.updateLineNumbers = null
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
export function postUpdateDisplay(cm, update) {
|
||||
let viewport = update.viewport
|
||||
|
||||
for (let first = true;; first = false) {
|
||||
if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
|
||||
// Clip forced viewport to actual scrollable area.
|
||||
if (viewport && viewport.top != null)
|
||||
viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}
|
||||
// Updated line heights might result in the drawn area not
|
||||
// actually covering the viewport. Keep looping until it does.
|
||||
update.visible = visibleLines(cm.display, cm.doc, viewport)
|
||||
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
|
||||
break
|
||||
} else if (first) {
|
||||
update.visible = visibleLines(cm.display, cm.doc, viewport)
|
||||
}
|
||||
if (!updateDisplayIfNeeded(cm, update)) break
|
||||
updateHeightsInViewport(cm)
|
||||
let barMeasure = measureForScrollbars(cm)
|
||||
updateSelection(cm)
|
||||
updateScrollbars(cm, barMeasure)
|
||||
setDocumentHeight(cm, barMeasure)
|
||||
update.force = false
|
||||
}
|
||||
|
||||
update.signal(cm, "update", cm)
|
||||
if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
|
||||
update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
|
||||
cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
|
||||
}
|
||||
}
|
||||
|
||||
export function updateDisplaySimple(cm, viewport) {
|
||||
let update = new DisplayUpdate(cm, viewport)
|
||||
if (updateDisplayIfNeeded(cm, update)) {
|
||||
updateHeightsInViewport(cm)
|
||||
postUpdateDisplay(cm, update)
|
||||
let barMeasure = measureForScrollbars(cm)
|
||||
updateSelection(cm)
|
||||
updateScrollbars(cm, barMeasure)
|
||||
setDocumentHeight(cm, barMeasure)
|
||||
update.finish()
|
||||
}
|
||||
}
|
||||
|
||||
// Sync the actual display DOM structure with display.view, removing
|
||||
// nodes for lines that are no longer in view, and creating the ones
|
||||
// that are not there yet, and updating the ones that are out of
|
||||
// date.
|
||||
function patchDisplay(cm, updateNumbersFrom, dims) {
|
||||
let display = cm.display, lineNumbers = cm.options.lineNumbers
|
||||
let container = display.lineDiv, cur = container.firstChild
|
||||
|
||||
function rm(node) {
|
||||
let next = node.nextSibling
|
||||
// Works around a throw-scroll bug in OS X Webkit
|
||||
if (webkit && mac && cm.display.currentWheelTarget == node)
|
||||
node.style.display = "none"
|
||||
else
|
||||
node.parentNode.removeChild(node)
|
||||
return next
|
||||
}
|
||||
|
||||
let view = display.view, lineN = display.viewFrom
|
||||
// Loop over the elements in the view, syncing cur (the DOM nodes
|
||||
// in display.lineDiv) with the view as we go.
|
||||
for (let i = 0; i < view.length; i++) {
|
||||
let lineView = view[i]
|
||||
if (lineView.hidden) {
|
||||
} else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
|
||||
let node = buildLineElement(cm, lineView, lineN, dims)
|
||||
container.insertBefore(node, cur)
|
||||
} else { // Already drawn
|
||||
while (cur != lineView.node) cur = rm(cur)
|
||||
let updateNumber = lineNumbers && updateNumbersFrom != null &&
|
||||
updateNumbersFrom <= lineN && lineView.lineNumber
|
||||
if (lineView.changes) {
|
||||
if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false
|
||||
updateLineForChanges(cm, lineView, lineN, dims)
|
||||
}
|
||||
if (updateNumber) {
|
||||
removeChildren(lineView.lineNumber)
|
||||
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
|
||||
}
|
||||
cur = lineView.node.nextSibling
|
||||
}
|
||||
lineN += lineView.size
|
||||
}
|
||||
while (cur) cur = rm(cur)
|
||||
}
|
||||
|
||||
export function updateGutterSpace(display) {
|
||||
let width = display.gutters.offsetWidth
|
||||
display.sizer.style.marginLeft = width + "px"
|
||||
}
|
||||
|
||||
export function setDocumentHeight(cm, measure) {
|
||||
cm.display.sizer.style.minHeight = measure.docHeight + "px"
|
||||
cm.display.heightForcer.style.top = measure.docHeight + "px"
|
||||
cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
|
||||
}
|
||||
|
|
@ -0,0 +1,188 @@
|
|||
import { buildLineContent } from "../line/line_data.js"
|
||||
import { lineNumberFor } from "../line/utils_line.js"
|
||||
import { ie, ie_version } from "../util/browser.js"
|
||||
import { elt, classTest } from "../util/dom.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
|
||||
// When an aspect of a line changes, a string is added to
|
||||
// lineView.changes. This updates the relevant part of the line's
|
||||
// DOM structure.
|
||||
export function updateLineForChanges(cm, lineView, lineN, dims) {
|
||||
for (let j = 0; j < lineView.changes.length; j++) {
|
||||
let type = lineView.changes[j]
|
||||
if (type == "text") updateLineText(cm, lineView)
|
||||
else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims)
|
||||
else if (type == "class") updateLineClasses(cm, lineView)
|
||||
else if (type == "widget") updateLineWidgets(cm, lineView, dims)
|
||||
}
|
||||
lineView.changes = null
|
||||
}
|
||||
|
||||
// Lines with gutter elements, widgets or a background class need to
|
||||
// be wrapped, and have the extra elements added to the wrapper div
|
||||
function ensureLineWrapped(lineView) {
|
||||
if (lineView.node == lineView.text) {
|
||||
lineView.node = elt("div", null, null, "position: relative")
|
||||
if (lineView.text.parentNode)
|
||||
lineView.text.parentNode.replaceChild(lineView.node, lineView.text)
|
||||
lineView.node.appendChild(lineView.text)
|
||||
if (ie && ie_version < 8) lineView.node.style.zIndex = 2
|
||||
}
|
||||
return lineView.node
|
||||
}
|
||||
|
||||
function updateLineBackground(cm, lineView) {
|
||||
let cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
|
||||
if (cls) cls += " CodeMirror-linebackground"
|
||||
if (lineView.background) {
|
||||
if (cls) lineView.background.className = cls
|
||||
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
|
||||
} else if (cls) {
|
||||
let wrap = ensureLineWrapped(lineView)
|
||||
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
|
||||
cm.display.input.setUneditable(lineView.background)
|
||||
}
|
||||
}
|
||||
|
||||
// Wrapper around buildLineContent which will reuse the structure
|
||||
// in display.externalMeasured when possible.
|
||||
function getLineContent(cm, lineView) {
|
||||
let ext = cm.display.externalMeasured
|
||||
if (ext && ext.line == lineView.line) {
|
||||
cm.display.externalMeasured = null
|
||||
lineView.measure = ext.measure
|
||||
return ext.built
|
||||
}
|
||||
return buildLineContent(cm, lineView)
|
||||
}
|
||||
|
||||
// Redraw the line's text. Interacts with the background and text
|
||||
// classes because the mode may output tokens that influence these
|
||||
// classes.
|
||||
function updateLineText(cm, lineView) {
|
||||
let cls = lineView.text.className
|
||||
let built = getLineContent(cm, lineView)
|
||||
if (lineView.text == lineView.node) lineView.node = built.pre
|
||||
lineView.text.parentNode.replaceChild(built.pre, lineView.text)
|
||||
lineView.text = built.pre
|
||||
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
|
||||
lineView.bgClass = built.bgClass
|
||||
lineView.textClass = built.textClass
|
||||
updateLineClasses(cm, lineView)
|
||||
} else if (cls) {
|
||||
lineView.text.className = cls
|
||||
}
|
||||
}
|
||||
|
||||
function updateLineClasses(cm, lineView) {
|
||||
updateLineBackground(cm, lineView)
|
||||
if (lineView.line.wrapClass)
|
||||
ensureLineWrapped(lineView).className = lineView.line.wrapClass
|
||||
else if (lineView.node != lineView.text)
|
||||
lineView.node.className = ""
|
||||
let textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
|
||||
lineView.text.className = textClass || ""
|
||||
}
|
||||
|
||||
function updateLineGutter(cm, lineView, lineN, dims) {
|
||||
if (lineView.gutter) {
|
||||
lineView.node.removeChild(lineView.gutter)
|
||||
lineView.gutter = null
|
||||
}
|
||||
if (lineView.gutterBackground) {
|
||||
lineView.node.removeChild(lineView.gutterBackground)
|
||||
lineView.gutterBackground = null
|
||||
}
|
||||
if (lineView.line.gutterClass) {
|
||||
let wrap = ensureLineWrapped(lineView)
|
||||
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
|
||||
`left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px; width: ${dims.gutterTotalWidth}px`)
|
||||
cm.display.input.setUneditable(lineView.gutterBackground)
|
||||
wrap.insertBefore(lineView.gutterBackground, lineView.text)
|
||||
}
|
||||
let markers = lineView.line.gutterMarkers
|
||||
if (cm.options.lineNumbers || markers) {
|
||||
let wrap = ensureLineWrapped(lineView)
|
||||
let gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", `left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px`)
|
||||
cm.display.input.setUneditable(gutterWrap)
|
||||
wrap.insertBefore(gutterWrap, lineView.text)
|
||||
if (lineView.line.gutterClass)
|
||||
gutterWrap.className += " " + lineView.line.gutterClass
|
||||
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
|
||||
lineView.lineNumber = gutterWrap.appendChild(
|
||||
elt("div", lineNumberFor(cm.options, lineN),
|
||||
"CodeMirror-linenumber CodeMirror-gutter-elt",
|
||||
`left: ${dims.gutterLeft["CodeMirror-linenumbers"]}px; width: ${cm.display.lineNumInnerWidth}px`))
|
||||
if (markers) for (let k = 0; k < cm.display.gutterSpecs.length; ++k) {
|
||||
let id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id]
|
||||
if (found)
|
||||
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
|
||||
`left: ${dims.gutterLeft[id]}px; width: ${dims.gutterWidth[id]}px`))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function updateLineWidgets(cm, lineView, dims) {
|
||||
if (lineView.alignable) lineView.alignable = null
|
||||
let isWidget = classTest("CodeMirror-linewidget")
|
||||
for (let node = lineView.node.firstChild, next; node; node = next) {
|
||||
next = node.nextSibling
|
||||
if (isWidget.test(node.className)) lineView.node.removeChild(node)
|
||||
}
|
||||
insertLineWidgets(cm, lineView, dims)
|
||||
}
|
||||
|
||||
// Build a line's DOM representation from scratch
|
||||
export function buildLineElement(cm, lineView, lineN, dims) {
|
||||
let built = getLineContent(cm, lineView)
|
||||
lineView.text = lineView.node = built.pre
|
||||
if (built.bgClass) lineView.bgClass = built.bgClass
|
||||
if (built.textClass) lineView.textClass = built.textClass
|
||||
|
||||
updateLineClasses(cm, lineView)
|
||||
updateLineGutter(cm, lineView, lineN, dims)
|
||||
insertLineWidgets(cm, lineView, dims)
|
||||
return lineView.node
|
||||
}
|
||||
|
||||
// A lineView may contain multiple logical lines (when merged by
|
||||
// collapsed spans). The widgets for all of them need to be drawn.
|
||||
function insertLineWidgets(cm, lineView, dims) {
|
||||
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
|
||||
if (lineView.rest) for (let i = 0; i < lineView.rest.length; i++)
|
||||
insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false)
|
||||
}
|
||||
|
||||
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
|
||||
if (!line.widgets) return
|
||||
let wrap = ensureLineWrapped(lineView)
|
||||
for (let i = 0, ws = line.widgets; i < ws.length; ++i) {
|
||||
let widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""))
|
||||
if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true")
|
||||
positionLineWidget(widget, node, lineView, dims)
|
||||
cm.display.input.setUneditable(node)
|
||||
if (allowAbove && widget.above)
|
||||
wrap.insertBefore(node, lineView.gutter || lineView.text)
|
||||
else
|
||||
wrap.appendChild(node)
|
||||
signalLater(widget, "redraw")
|
||||
}
|
||||
}
|
||||
|
||||
function positionLineWidget(widget, node, lineView, dims) {
|
||||
if (widget.noHScroll) {
|
||||
;(lineView.alignable || (lineView.alignable = [])).push(node)
|
||||
let width = dims.wrapperWidth
|
||||
node.style.left = dims.fixedPos + "px"
|
||||
if (!widget.coverGutter) {
|
||||
width -= dims.gutterTotalWidth
|
||||
node.style.paddingLeft = dims.gutterTotalWidth + "px"
|
||||
}
|
||||
node.style.width = width + "px"
|
||||
}
|
||||
if (widget.coverGutter) {
|
||||
node.style.zIndex = 5
|
||||
node.style.position = "relative"
|
||||
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,76 @@
|
|||
import { heightAtLine } from "../line/spans.js"
|
||||
import { getLine, lineAtHeight, updateLineHeight } from "../line/utils_line.js"
|
||||
import { paddingTop, charWidth } from "../measurement/position_measurement.js"
|
||||
import { ie, ie_version } from "../util/browser.js"
|
||||
|
||||
// Read the actual heights of the rendered lines, and update their
|
||||
// stored heights to match.
|
||||
export function updateHeightsInViewport(cm) {
|
||||
let display = cm.display
|
||||
let prevBottom = display.lineDiv.offsetTop
|
||||
for (let i = 0; i < display.view.length; i++) {
|
||||
let cur = display.view[i], wrapping = cm.options.lineWrapping
|
||||
let height, width = 0
|
||||
if (cur.hidden) continue
|
||||
if (ie && ie_version < 8) {
|
||||
let bot = cur.node.offsetTop + cur.node.offsetHeight
|
||||
height = bot - prevBottom
|
||||
prevBottom = bot
|
||||
} else {
|
||||
let box = cur.node.getBoundingClientRect()
|
||||
height = box.bottom - box.top
|
||||
// Check that lines don't extend past the right of the current
|
||||
// editor width
|
||||
if (!wrapping && cur.text.firstChild)
|
||||
width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1
|
||||
}
|
||||
let diff = cur.line.height - height
|
||||
if (diff > .005 || diff < -.005) {
|
||||
updateLineHeight(cur.line, height)
|
||||
updateWidgetHeight(cur.line)
|
||||
if (cur.rest) for (let j = 0; j < cur.rest.length; j++)
|
||||
updateWidgetHeight(cur.rest[j])
|
||||
}
|
||||
if (width > cm.display.sizerWidth) {
|
||||
let chWidth = Math.ceil(width / charWidth(cm.display))
|
||||
if (chWidth > cm.display.maxLineLength) {
|
||||
cm.display.maxLineLength = chWidth
|
||||
cm.display.maxLine = cur.line
|
||||
cm.display.maxLineChanged = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Read and store the height of line widgets associated with the
|
||||
// given line.
|
||||
function updateWidgetHeight(line) {
|
||||
if (line.widgets) for (let i = 0; i < line.widgets.length; ++i) {
|
||||
let w = line.widgets[i], parent = w.node.parentNode
|
||||
if (parent) w.height = parent.offsetHeight
|
||||
}
|
||||
}
|
||||
|
||||
// Compute the lines that are visible in a given viewport (defaults
|
||||
// the the current scroll position). viewport may contain top,
|
||||
// height, and ensure (see op.scrollToPos) properties.
|
||||
export function visibleLines(display, doc, viewport) {
|
||||
let top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
|
||||
top = Math.floor(top - paddingTop(display))
|
||||
let bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
|
||||
|
||||
let from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
|
||||
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
|
||||
// forces those lines into the viewport (if possible).
|
||||
if (viewport && viewport.ensure) {
|
||||
let ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
|
||||
if (ensureFrom < from) {
|
||||
from = ensureFrom
|
||||
to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
|
||||
} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
|
||||
from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
|
||||
to = ensureTo
|
||||
}
|
||||
}
|
||||
return {from: from, to: Math.max(to, from + 1)}
|
||||
}
|
||||
|
|
@ -0,0 +1,153 @@
|
|||
import { buildViewArray } from "../line/line_data.js"
|
||||
import { sawCollapsedSpans } from "../line/saw_special_spans.js"
|
||||
import { visualLineEndNo, visualLineNo } from "../line/spans.js"
|
||||
import { findViewIndex } from "../measurement/position_measurement.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
// Updates the display.view data structure for a given change to the
|
||||
// document. From and to are in pre-change coordinates. Lendiff is
|
||||
// the amount of lines added or subtracted by the change. This is
|
||||
// used for changes that span multiple lines, or change the way
|
||||
// lines are divided into visual lines. regLineChange (below)
|
||||
// registers single-line changes.
|
||||
export function regChange(cm, from, to, lendiff) {
|
||||
if (from == null) from = cm.doc.first
|
||||
if (to == null) to = cm.doc.first + cm.doc.size
|
||||
if (!lendiff) lendiff = 0
|
||||
|
||||
let display = cm.display
|
||||
if (lendiff && to < display.viewTo &&
|
||||
(display.updateLineNumbers == null || display.updateLineNumbers > from))
|
||||
display.updateLineNumbers = from
|
||||
|
||||
cm.curOp.viewChanged = true
|
||||
|
||||
if (from >= display.viewTo) { // Change after
|
||||
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
|
||||
resetView(cm)
|
||||
} else if (to <= display.viewFrom) { // Change before
|
||||
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
|
||||
resetView(cm)
|
||||
} else {
|
||||
display.viewFrom += lendiff
|
||||
display.viewTo += lendiff
|
||||
}
|
||||
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
|
||||
resetView(cm)
|
||||
} else if (from <= display.viewFrom) { // Top overlap
|
||||
let cut = viewCuttingPoint(cm, to, to + lendiff, 1)
|
||||
if (cut) {
|
||||
display.view = display.view.slice(cut.index)
|
||||
display.viewFrom = cut.lineN
|
||||
display.viewTo += lendiff
|
||||
} else {
|
||||
resetView(cm)
|
||||
}
|
||||
} else if (to >= display.viewTo) { // Bottom overlap
|
||||
let cut = viewCuttingPoint(cm, from, from, -1)
|
||||
if (cut) {
|
||||
display.view = display.view.slice(0, cut.index)
|
||||
display.viewTo = cut.lineN
|
||||
} else {
|
||||
resetView(cm)
|
||||
}
|
||||
} else { // Gap in the middle
|
||||
let cutTop = viewCuttingPoint(cm, from, from, -1)
|
||||
let cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
|
||||
if (cutTop && cutBot) {
|
||||
display.view = display.view.slice(0, cutTop.index)
|
||||
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
|
||||
.concat(display.view.slice(cutBot.index))
|
||||
display.viewTo += lendiff
|
||||
} else {
|
||||
resetView(cm)
|
||||
}
|
||||
}
|
||||
|
||||
let ext = display.externalMeasured
|
||||
if (ext) {
|
||||
if (to < ext.lineN)
|
||||
ext.lineN += lendiff
|
||||
else if (from < ext.lineN + ext.size)
|
||||
display.externalMeasured = null
|
||||
}
|
||||
}
|
||||
|
||||
// Register a change to a single line. Type must be one of "text",
|
||||
// "gutter", "class", "widget"
|
||||
export function regLineChange(cm, line, type) {
|
||||
cm.curOp.viewChanged = true
|
||||
let display = cm.display, ext = cm.display.externalMeasured
|
||||
if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
|
||||
display.externalMeasured = null
|
||||
|
||||
if (line < display.viewFrom || line >= display.viewTo) return
|
||||
let lineView = display.view[findViewIndex(cm, line)]
|
||||
if (lineView.node == null) return
|
||||
let arr = lineView.changes || (lineView.changes = [])
|
||||
if (indexOf(arr, type) == -1) arr.push(type)
|
||||
}
|
||||
|
||||
// Clear the view.
|
||||
export function resetView(cm) {
|
||||
cm.display.viewFrom = cm.display.viewTo = cm.doc.first
|
||||
cm.display.view = []
|
||||
cm.display.viewOffset = 0
|
||||
}
|
||||
|
||||
function viewCuttingPoint(cm, oldN, newN, dir) {
|
||||
let index = findViewIndex(cm, oldN), diff, view = cm.display.view
|
||||
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
|
||||
return {index: index, lineN: newN}
|
||||
let n = cm.display.viewFrom
|
||||
for (let i = 0; i < index; i++)
|
||||
n += view[i].size
|
||||
if (n != oldN) {
|
||||
if (dir > 0) {
|
||||
if (index == view.length - 1) return null
|
||||
diff = (n + view[index].size) - oldN
|
||||
index++
|
||||
} else {
|
||||
diff = n - oldN
|
||||
}
|
||||
oldN += diff; newN += diff
|
||||
}
|
||||
while (visualLineNo(cm.doc, newN) != newN) {
|
||||
if (index == (dir < 0 ? 0 : view.length - 1)) return null
|
||||
newN += dir * view[index - (dir < 0 ? 1 : 0)].size
|
||||
index += dir
|
||||
}
|
||||
return {index: index, lineN: newN}
|
||||
}
|
||||
|
||||
// Force the view to cover a given range, adding empty view element
|
||||
// or clipping off existing ones as needed.
|
||||
export function adjustView(cm, from, to) {
|
||||
let display = cm.display, view = display.view
|
||||
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
|
||||
display.view = buildViewArray(cm, from, to)
|
||||
display.viewFrom = from
|
||||
} else {
|
||||
if (display.viewFrom > from)
|
||||
display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view)
|
||||
else if (display.viewFrom < from)
|
||||
display.view = display.view.slice(findViewIndex(cm, from))
|
||||
display.viewFrom = from
|
||||
if (display.viewTo < to)
|
||||
display.view = display.view.concat(buildViewArray(cm, display.viewTo, to))
|
||||
else if (display.viewTo > to)
|
||||
display.view = display.view.slice(0, findViewIndex(cm, to))
|
||||
}
|
||||
display.viewTo = to
|
||||
}
|
||||
|
||||
// Count the number of lines in the view whose DOM representation is
|
||||
// out of date (or nonexistent).
|
||||
export function countDirtyView(cm) {
|
||||
let view = cm.display.view, dirty = 0
|
||||
for (let i = 0; i < view.length; i++) {
|
||||
let lineView = view[i]
|
||||
if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty
|
||||
}
|
||||
return dirty
|
||||
}
|
||||
|
|
@ -0,0 +1,215 @@
|
|||
import { Display } from "../display/Display.js"
|
||||
import { onFocus, onBlur } from "../display/focus.js"
|
||||
import { maybeUpdateLineNumberWidth } from "../display/line_numbers.js"
|
||||
import { endOperation, operation, startOperation } from "../display/operations.js"
|
||||
import { initScrollbars } from "../display/scrollbars.js"
|
||||
import { onScrollWheel } from "../display/scroll_events.js"
|
||||
import { setScrollLeft, updateScrollTop } from "../display/scrolling.js"
|
||||
import { clipPos, Pos } from "../line/pos.js"
|
||||
import { posFromMouse } from "../measurement/position_measurement.js"
|
||||
import { eventInWidget } from "../measurement/widgets.js"
|
||||
import Doc from "../model/Doc.js"
|
||||
import { attachDoc } from "../model/document_data.js"
|
||||
import { Range } from "../model/selection.js"
|
||||
import { extendSelection } from "../model/selection_updates.js"
|
||||
import { ie, ie_version, mobile, webkit } from "../util/browser.js"
|
||||
import { e_preventDefault, e_stop, on, signal, signalDOMEvent } from "../util/event.js"
|
||||
import { bind, copyObj, Delayed } from "../util/misc.js"
|
||||
|
||||
import { clearDragCursor, onDragOver, onDragStart, onDrop } from "./drop_events.js"
|
||||
import { ensureGlobalHandlers } from "./global_events.js"
|
||||
import { onKeyDown, onKeyPress, onKeyUp } from "./key_events.js"
|
||||
import { clickInGutter, onContextMenu, onMouseDown } from "./mouse_events.js"
|
||||
import { themeChanged } from "./utils.js"
|
||||
import { defaults, optionHandlers, Init } from "./options.js"
|
||||
|
||||
// A CodeMirror instance represents an editor. This is the object
|
||||
// that user code is usually dealing with.
|
||||
|
||||
export function CodeMirror(place, options) {
|
||||
if (!(this instanceof CodeMirror)) return new CodeMirror(place, options)
|
||||
|
||||
this.options = options = options ? copyObj(options) : {}
|
||||
// Determine effective options based on given values and defaults.
|
||||
copyObj(defaults, options, false)
|
||||
|
||||
let doc = options.value
|
||||
if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction)
|
||||
else if (options.mode) doc.modeOption = options.mode
|
||||
this.doc = doc
|
||||
|
||||
let input = new CodeMirror.inputStyles[options.inputStyle](this)
|
||||
let display = this.display = new Display(place, doc, input, options)
|
||||
display.wrapper.CodeMirror = this
|
||||
themeChanged(this)
|
||||
if (options.lineWrapping)
|
||||
this.display.wrapper.className += " CodeMirror-wrap"
|
||||
initScrollbars(this)
|
||||
|
||||
this.state = {
|
||||
keyMaps: [], // stores maps added by addKeyMap
|
||||
overlays: [], // highlighting overlays, as added by addOverlay
|
||||
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
|
||||
overwrite: false,
|
||||
delayingBlurEvent: false,
|
||||
focused: false,
|
||||
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
|
||||
pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
|
||||
selectingText: false,
|
||||
draggingText: false,
|
||||
highlight: new Delayed(), // stores highlight worker timeout
|
||||
keySeq: null, // Unfinished key sequence
|
||||
specialChars: null
|
||||
}
|
||||
|
||||
if (options.autofocus && !mobile) display.input.focus()
|
||||
|
||||
// Override magic textarea content restore that IE sometimes does
|
||||
// on our hidden textarea on reload
|
||||
if (ie && ie_version < 11) setTimeout(() => this.display.input.reset(true), 20)
|
||||
|
||||
registerEventHandlers(this)
|
||||
ensureGlobalHandlers()
|
||||
|
||||
startOperation(this)
|
||||
this.curOp.forceUpdate = true
|
||||
attachDoc(this, doc)
|
||||
|
||||
if ((options.autofocus && !mobile) || this.hasFocus())
|
||||
setTimeout(bind(onFocus, this), 20)
|
||||
else
|
||||
onBlur(this)
|
||||
|
||||
for (let opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
|
||||
optionHandlers[opt](this, options[opt], Init)
|
||||
maybeUpdateLineNumberWidth(this)
|
||||
if (options.finishInit) options.finishInit(this)
|
||||
for (let i = 0; i < initHooks.length; ++i) initHooks[i](this)
|
||||
endOperation(this)
|
||||
// Suppress optimizelegibility in Webkit, since it breaks text
|
||||
// measuring on line wrapping boundaries.
|
||||
if (webkit && options.lineWrapping &&
|
||||
getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
|
||||
display.lineDiv.style.textRendering = "auto"
|
||||
}
|
||||
|
||||
// The default configuration options.
|
||||
CodeMirror.defaults = defaults
|
||||
// Functions to run when options are changed.
|
||||
CodeMirror.optionHandlers = optionHandlers
|
||||
|
||||
export default CodeMirror
|
||||
|
||||
// Attach the necessary event handlers when initializing the editor
|
||||
function registerEventHandlers(cm) {
|
||||
let d = cm.display
|
||||
on(d.scroller, "mousedown", operation(cm, onMouseDown))
|
||||
// Older IE's will not fire a second mousedown for a double click
|
||||
if (ie && ie_version < 11)
|
||||
on(d.scroller, "dblclick", operation(cm, e => {
|
||||
if (signalDOMEvent(cm, e)) return
|
||||
let pos = posFromMouse(cm, e)
|
||||
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return
|
||||
e_preventDefault(e)
|
||||
let word = cm.findWordAt(pos)
|
||||
extendSelection(cm.doc, word.anchor, word.head)
|
||||
}))
|
||||
else
|
||||
on(d.scroller, "dblclick", e => signalDOMEvent(cm, e) || e_preventDefault(e))
|
||||
// Some browsers fire contextmenu *after* opening the menu, at
|
||||
// which point we can't mess with it anymore. Context menu is
|
||||
// handled in onMouseDown for these browsers.
|
||||
on(d.scroller, "contextmenu", e => onContextMenu(cm, e))
|
||||
on(d.input.getField(), "contextmenu", e => {
|
||||
if (!d.scroller.contains(e.target)) onContextMenu(cm, e)
|
||||
})
|
||||
|
||||
// Used to suppress mouse event handling when a touch happens
|
||||
let touchFinished, prevTouch = {end: 0}
|
||||
function finishTouch() {
|
||||
if (d.activeTouch) {
|
||||
touchFinished = setTimeout(() => d.activeTouch = null, 1000)
|
||||
prevTouch = d.activeTouch
|
||||
prevTouch.end = +new Date
|
||||
}
|
||||
}
|
||||
function isMouseLikeTouchEvent(e) {
|
||||
if (e.touches.length != 1) return false
|
||||
let touch = e.touches[0]
|
||||
return touch.radiusX <= 1 && touch.radiusY <= 1
|
||||
}
|
||||
function farAway(touch, other) {
|
||||
if (other.left == null) return true
|
||||
let dx = other.left - touch.left, dy = other.top - touch.top
|
||||
return dx * dx + dy * dy > 20 * 20
|
||||
}
|
||||
on(d.scroller, "touchstart", e => {
|
||||
if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
|
||||
d.input.ensurePolled()
|
||||
clearTimeout(touchFinished)
|
||||
let now = +new Date
|
||||
d.activeTouch = {start: now, moved: false,
|
||||
prev: now - prevTouch.end <= 300 ? prevTouch : null}
|
||||
if (e.touches.length == 1) {
|
||||
d.activeTouch.left = e.touches[0].pageX
|
||||
d.activeTouch.top = e.touches[0].pageY
|
||||
}
|
||||
}
|
||||
})
|
||||
on(d.scroller, "touchmove", () => {
|
||||
if (d.activeTouch) d.activeTouch.moved = true
|
||||
})
|
||||
on(d.scroller, "touchend", e => {
|
||||
let touch = d.activeTouch
|
||||
if (touch && !eventInWidget(d, e) && touch.left != null &&
|
||||
!touch.moved && new Date - touch.start < 300) {
|
||||
let pos = cm.coordsChar(d.activeTouch, "page"), range
|
||||
if (!touch.prev || farAway(touch, touch.prev)) // Single tap
|
||||
range = new Range(pos, pos)
|
||||
else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
|
||||
range = cm.findWordAt(pos)
|
||||
else // Triple tap
|
||||
range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)))
|
||||
cm.setSelection(range.anchor, range.head)
|
||||
cm.focus()
|
||||
e_preventDefault(e)
|
||||
}
|
||||
finishTouch()
|
||||
})
|
||||
on(d.scroller, "touchcancel", finishTouch)
|
||||
|
||||
// Sync scrolling between fake scrollbars and real scrollable
|
||||
// area, ensure viewport is updated when scrolling.
|
||||
on(d.scroller, "scroll", () => {
|
||||
if (d.scroller.clientHeight) {
|
||||
updateScrollTop(cm, d.scroller.scrollTop)
|
||||
setScrollLeft(cm, d.scroller.scrollLeft, true)
|
||||
signal(cm, "scroll", cm)
|
||||
}
|
||||
})
|
||||
|
||||
// Listen to wheel events in order to try and update the viewport on time.
|
||||
on(d.scroller, "mousewheel", e => onScrollWheel(cm, e))
|
||||
on(d.scroller, "DOMMouseScroll", e => onScrollWheel(cm, e))
|
||||
|
||||
// Prevent wrapper from ever scrolling
|
||||
on(d.wrapper, "scroll", () => d.wrapper.scrollTop = d.wrapper.scrollLeft = 0)
|
||||
|
||||
d.dragFunctions = {
|
||||
enter: e => {if (!signalDOMEvent(cm, e)) e_stop(e)},
|
||||
over: e => {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},
|
||||
start: e => onDragStart(cm, e),
|
||||
drop: operation(cm, onDrop),
|
||||
leave: e => {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}
|
||||
}
|
||||
|
||||
let inp = d.input.getField()
|
||||
on(inp, "keyup", e => onKeyUp.call(cm, e))
|
||||
on(inp, "keydown", operation(cm, onKeyDown))
|
||||
on(inp, "keypress", operation(cm, onKeyPress))
|
||||
on(inp, "focus", e => onFocus(cm, e))
|
||||
on(inp, "blur", e => onBlur(cm, e))
|
||||
}
|
||||
|
||||
let initHooks = []
|
||||
CodeMirror.defineInitHook = f => initHooks.push(f)
|
||||
|
|
@ -0,0 +1,178 @@
|
|||
import { deleteNearSelection } from "./deleteNearSelection.js"
|
||||
import { runInOp } from "../display/operations.js"
|
||||
import { ensureCursorVisible } from "../display/scrolling.js"
|
||||
import { endOfLine } from "../input/movement.js"
|
||||
import { clipPos, Pos } from "../line/pos.js"
|
||||
import { visualLine, visualLineEnd } from "../line/spans.js"
|
||||
import { getLine, lineNo } from "../line/utils_line.js"
|
||||
import { Range } from "../model/selection.js"
|
||||
import { selectAll } from "../model/selection_updates.js"
|
||||
import { countColumn, sel_dontScroll, sel_move, spaceStr } from "../util/misc.js"
|
||||
import { getOrder } from "../util/bidi.js"
|
||||
|
||||
// Commands are parameter-less actions that can be performed on an
|
||||
// editor, mostly used for keybindings.
|
||||
export let commands = {
|
||||
selectAll: selectAll,
|
||||
singleSelection: cm => cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll),
|
||||
killLine: cm => deleteNearSelection(cm, range => {
|
||||
if (range.empty()) {
|
||||
let len = getLine(cm.doc, range.head.line).text.length
|
||||
if (range.head.ch == len && range.head.line < cm.lastLine())
|
||||
return {from: range.head, to: Pos(range.head.line + 1, 0)}
|
||||
else
|
||||
return {from: range.head, to: Pos(range.head.line, len)}
|
||||
} else {
|
||||
return {from: range.from(), to: range.to()}
|
||||
}
|
||||
}),
|
||||
deleteLine: cm => deleteNearSelection(cm, range => ({
|
||||
from: Pos(range.from().line, 0),
|
||||
to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
|
||||
})),
|
||||
delLineLeft: cm => deleteNearSelection(cm, range => ({
|
||||
from: Pos(range.from().line, 0), to: range.from()
|
||||
})),
|
||||
delWrappedLineLeft: cm => deleteNearSelection(cm, range => {
|
||||
let top = cm.charCoords(range.head, "div").top + 5
|
||||
let leftPos = cm.coordsChar({left: 0, top: top}, "div")
|
||||
return {from: leftPos, to: range.from()}
|
||||
}),
|
||||
delWrappedLineRight: cm => deleteNearSelection(cm, range => {
|
||||
let top = cm.charCoords(range.head, "div").top + 5
|
||||
let rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
|
||||
return {from: range.from(), to: rightPos }
|
||||
}),
|
||||
undo: cm => cm.undo(),
|
||||
redo: cm => cm.redo(),
|
||||
undoSelection: cm => cm.undoSelection(),
|
||||
redoSelection: cm => cm.redoSelection(),
|
||||
goDocStart: cm => cm.extendSelection(Pos(cm.firstLine(), 0)),
|
||||
goDocEnd: cm => cm.extendSelection(Pos(cm.lastLine())),
|
||||
goLineStart: cm => cm.extendSelectionsBy(range => lineStart(cm, range.head.line),
|
||||
{origin: "+move", bias: 1}
|
||||
),
|
||||
goLineStartSmart: cm => cm.extendSelectionsBy(range => lineStartSmart(cm, range.head),
|
||||
{origin: "+move", bias: 1}
|
||||
),
|
||||
goLineEnd: cm => cm.extendSelectionsBy(range => lineEnd(cm, range.head.line),
|
||||
{origin: "+move", bias: -1}
|
||||
),
|
||||
goLineRight: cm => cm.extendSelectionsBy(range => {
|
||||
let top = cm.cursorCoords(range.head, "div").top + 5
|
||||
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
|
||||
}, sel_move),
|
||||
goLineLeft: cm => cm.extendSelectionsBy(range => {
|
||||
let top = cm.cursorCoords(range.head, "div").top + 5
|
||||
return cm.coordsChar({left: 0, top: top}, "div")
|
||||
}, sel_move),
|
||||
goLineLeftSmart: cm => cm.extendSelectionsBy(range => {
|
||||
let top = cm.cursorCoords(range.head, "div").top + 5
|
||||
let pos = cm.coordsChar({left: 0, top: top}, "div")
|
||||
if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head)
|
||||
return pos
|
||||
}, sel_move),
|
||||
goLineUp: cm => cm.moveV(-1, "line"),
|
||||
goLineDown: cm => cm.moveV(1, "line"),
|
||||
goPageUp: cm => cm.moveV(-1, "page"),
|
||||
goPageDown: cm => cm.moveV(1, "page"),
|
||||
goCharLeft: cm => cm.moveH(-1, "char"),
|
||||
goCharRight: cm => cm.moveH(1, "char"),
|
||||
goColumnLeft: cm => cm.moveH(-1, "column"),
|
||||
goColumnRight: cm => cm.moveH(1, "column"),
|
||||
goWordLeft: cm => cm.moveH(-1, "word"),
|
||||
goGroupRight: cm => cm.moveH(1, "group"),
|
||||
goGroupLeft: cm => cm.moveH(-1, "group"),
|
||||
goWordRight: cm => cm.moveH(1, "word"),
|
||||
delCharBefore: cm => cm.deleteH(-1, "char"),
|
||||
delCharAfter: cm => cm.deleteH(1, "char"),
|
||||
delWordBefore: cm => cm.deleteH(-1, "word"),
|
||||
delWordAfter: cm => cm.deleteH(1, "word"),
|
||||
delGroupBefore: cm => cm.deleteH(-1, "group"),
|
||||
delGroupAfter: cm => cm.deleteH(1, "group"),
|
||||
indentAuto: cm => cm.indentSelection("smart"),
|
||||
indentMore: cm => cm.indentSelection("add"),
|
||||
indentLess: cm => cm.indentSelection("subtract"),
|
||||
insertTab: cm => cm.replaceSelection("\t"),
|
||||
insertSoftTab: cm => {
|
||||
let spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
let pos = ranges[i].from()
|
||||
let col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)
|
||||
spaces.push(spaceStr(tabSize - col % tabSize))
|
||||
}
|
||||
cm.replaceSelections(spaces)
|
||||
},
|
||||
defaultTab: cm => {
|
||||
if (cm.somethingSelected()) cm.indentSelection("add")
|
||||
else cm.execCommand("insertTab")
|
||||
},
|
||||
// Swap the two chars left and right of each selection's head.
|
||||
// Move cursor behind the two swapped characters afterwards.
|
||||
//
|
||||
// Doesn't consider line feeds a character.
|
||||
// Doesn't scan more than one line above to find a character.
|
||||
// Doesn't do anything on an empty line.
|
||||
// Doesn't do anything with non-empty selections.
|
||||
transposeChars: cm => runInOp(cm, () => {
|
||||
let ranges = cm.listSelections(), newSel = []
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
if (!ranges[i].empty()) continue
|
||||
let cur = ranges[i].head, line = getLine(cm.doc, cur.line).text
|
||||
if (line) {
|
||||
if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1)
|
||||
if (cur.ch > 0) {
|
||||
cur = new Pos(cur.line, cur.ch + 1)
|
||||
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
|
||||
Pos(cur.line, cur.ch - 2), cur, "+transpose")
|
||||
} else if (cur.line > cm.doc.first) {
|
||||
let prev = getLine(cm.doc, cur.line - 1).text
|
||||
if (prev) {
|
||||
cur = new Pos(cur.line, 1)
|
||||
cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
|
||||
prev.charAt(prev.length - 1),
|
||||
Pos(cur.line - 1, prev.length - 1), cur, "+transpose")
|
||||
}
|
||||
}
|
||||
}
|
||||
newSel.push(new Range(cur, cur))
|
||||
}
|
||||
cm.setSelections(newSel)
|
||||
}),
|
||||
newlineAndIndent: cm => runInOp(cm, () => {
|
||||
let sels = cm.listSelections()
|
||||
for (let i = sels.length - 1; i >= 0; i--)
|
||||
cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input")
|
||||
sels = cm.listSelections()
|
||||
for (let i = 0; i < sels.length; i++)
|
||||
cm.indentLine(sels[i].from().line, null, true)
|
||||
ensureCursorVisible(cm)
|
||||
}),
|
||||
openLine: cm => cm.replaceSelection("\n", "start"),
|
||||
toggleOverwrite: cm => cm.toggleOverwrite()
|
||||
}
|
||||
|
||||
|
||||
function lineStart(cm, lineN) {
|
||||
let line = getLine(cm.doc, lineN)
|
||||
let visual = visualLine(line)
|
||||
if (visual != line) lineN = lineNo(visual)
|
||||
return endOfLine(true, cm, visual, lineN, 1)
|
||||
}
|
||||
function lineEnd(cm, lineN) {
|
||||
let line = getLine(cm.doc, lineN)
|
||||
let visual = visualLineEnd(line)
|
||||
if (visual != line) lineN = lineNo(visual)
|
||||
return endOfLine(true, cm, line, lineN, -1)
|
||||
}
|
||||
function lineStartSmart(cm, pos) {
|
||||
let start = lineStart(cm, pos.line)
|
||||
let line = getLine(cm.doc, start.line)
|
||||
let order = getOrder(line, cm.doc.direction)
|
||||
if (!order || order[0].level == 0) {
|
||||
let firstNonWS = Math.max(start.ch, line.text.search(/\S/))
|
||||
let inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch
|
||||
return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
|
||||
}
|
||||
return start
|
||||
}
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
import { runInOp } from "../display/operations.js"
|
||||
import { ensureCursorVisible } from "../display/scrolling.js"
|
||||
import { cmp } from "../line/pos.js"
|
||||
import { replaceRange } from "../model/changes.js"
|
||||
import { lst } from "../util/misc.js"
|
||||
|
||||
// Helper for deleting text near the selection(s), used to implement
|
||||
// backspace, delete, and similar functionality.
|
||||
export function deleteNearSelection(cm, compute) {
|
||||
let ranges = cm.doc.sel.ranges, kill = []
|
||||
// Build up a set of ranges to kill first, merging overlapping
|
||||
// ranges.
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
let toKill = compute(ranges[i])
|
||||
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
|
||||
let replaced = kill.pop()
|
||||
if (cmp(replaced.from, toKill.from) < 0) {
|
||||
toKill.from = replaced.from
|
||||
break
|
||||
}
|
||||
}
|
||||
kill.push(toKill)
|
||||
}
|
||||
// Next, remove those actual ranges.
|
||||
runInOp(cm, () => {
|
||||
for (let i = kill.length - 1; i >= 0; i--)
|
||||
replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete")
|
||||
ensureCursorVisible(cm)
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,130 @@
|
|||
import { drawSelectionCursor } from "../display/selection.js"
|
||||
import { operation } from "../display/operations.js"
|
||||
import { clipPos } from "../line/pos.js"
|
||||
import { posFromMouse } from "../measurement/position_measurement.js"
|
||||
import { eventInWidget } from "../measurement/widgets.js"
|
||||
import { makeChange, replaceRange } from "../model/changes.js"
|
||||
import { changeEnd } from "../model/change_measurement.js"
|
||||
import { simpleSelection } from "../model/selection.js"
|
||||
import { setSelectionNoUndo, setSelectionReplaceHistory } from "../model/selection_updates.js"
|
||||
import { ie, presto, safari } from "../util/browser.js"
|
||||
import { elt, removeChildrenAndAdd } from "../util/dom.js"
|
||||
import { e_preventDefault, e_stop, signalDOMEvent } from "../util/event.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
// Kludge to work around strange IE behavior where it'll sometimes
|
||||
// re-fire a series of drag-related events right after the drop (#1551)
|
||||
let lastDrop = 0
|
||||
|
||||
export function onDrop(e) {
|
||||
let cm = this
|
||||
clearDragCursor(cm)
|
||||
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
|
||||
return
|
||||
e_preventDefault(e)
|
||||
if (ie) lastDrop = +new Date
|
||||
let pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
|
||||
if (!pos || cm.isReadOnly()) return
|
||||
// Might be a file drop, in which case we simply extract the text
|
||||
// and insert it.
|
||||
if (files && files.length && window.FileReader && window.File) {
|
||||
let n = files.length, text = Array(n), read = 0
|
||||
const markAsReadAndPasteIfAllFilesAreRead = () => {
|
||||
if (++read == n) {
|
||||
operation(cm, () => {
|
||||
pos = clipPos(cm.doc, pos)
|
||||
let change = {from: pos, to: pos,
|
||||
text: cm.doc.splitLines(
|
||||
text.filter(t => t != null).join(cm.doc.lineSeparator())),
|
||||
origin: "paste"}
|
||||
makeChange(cm.doc, change)
|
||||
setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))))
|
||||
})()
|
||||
}
|
||||
}
|
||||
const readTextFromFile = (file, i) => {
|
||||
if (cm.options.allowDropFileTypes &&
|
||||
indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
|
||||
markAsReadAndPasteIfAllFilesAreRead()
|
||||
return
|
||||
}
|
||||
let reader = new FileReader
|
||||
reader.onerror = () => markAsReadAndPasteIfAllFilesAreRead()
|
||||
reader.onload = () => {
|
||||
let content = reader.result
|
||||
if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
|
||||
markAsReadAndPasteIfAllFilesAreRead()
|
||||
return
|
||||
}
|
||||
text[i] = content
|
||||
markAsReadAndPasteIfAllFilesAreRead()
|
||||
}
|
||||
reader.readAsText(file)
|
||||
}
|
||||
for (let i = 0; i < files.length; i++) readTextFromFile(files[i], i)
|
||||
} else { // Normal drop
|
||||
// Don't do a replace if the drop happened inside of the selected text.
|
||||
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
|
||||
cm.state.draggingText(e)
|
||||
// Ensure the editor is re-focused
|
||||
setTimeout(() => cm.display.input.focus(), 20)
|
||||
return
|
||||
}
|
||||
try {
|
||||
let text = e.dataTransfer.getData("Text")
|
||||
if (text) {
|
||||
let selected
|
||||
if (cm.state.draggingText && !cm.state.draggingText.copy)
|
||||
selected = cm.listSelections()
|
||||
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
|
||||
if (selected) for (let i = 0; i < selected.length; ++i)
|
||||
replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag")
|
||||
cm.replaceSelection(text, "around", "paste")
|
||||
cm.display.input.focus()
|
||||
}
|
||||
}
|
||||
catch(e){}
|
||||
}
|
||||
}
|
||||
|
||||
export function onDragStart(cm, e) {
|
||||
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
|
||||
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return
|
||||
|
||||
e.dataTransfer.setData("Text", cm.getSelection())
|
||||
e.dataTransfer.effectAllowed = "copyMove"
|
||||
|
||||
// Use dummy image instead of default browsers image.
|
||||
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
|
||||
if (e.dataTransfer.setDragImage && !safari) {
|
||||
let img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
|
||||
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
|
||||
if (presto) {
|
||||
img.width = img.height = 1
|
||||
cm.display.wrapper.appendChild(img)
|
||||
// Force a relayout, or Opera won't use our image for some obscure reason
|
||||
img._top = img.offsetTop
|
||||
}
|
||||
e.dataTransfer.setDragImage(img, 0, 0)
|
||||
if (presto) img.parentNode.removeChild(img)
|
||||
}
|
||||
}
|
||||
|
||||
export function onDragOver(cm, e) {
|
||||
let pos = posFromMouse(cm, e)
|
||||
if (!pos) return
|
||||
let frag = document.createDocumentFragment()
|
||||
drawSelectionCursor(cm, pos, frag)
|
||||
if (!cm.display.dragCursor) {
|
||||
cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
|
||||
cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
|
||||
}
|
||||
removeChildrenAndAdd(cm.display.dragCursor, frag)
|
||||
}
|
||||
|
||||
export function clearDragCursor(cm) {
|
||||
if (cm.display.dragCursor) {
|
||||
cm.display.lineSpace.removeChild(cm.display.dragCursor)
|
||||
cm.display.dragCursor = null
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,61 @@
|
|||
import { CodeMirror } from "./CodeMirror.js"
|
||||
import { activeElt } from "../util/dom.js"
|
||||
import { off, on } from "../util/event.js"
|
||||
import { copyObj } from "../util/misc.js"
|
||||
|
||||
export function fromTextArea(textarea, options) {
|
||||
options = options ? copyObj(options) : {}
|
||||
options.value = textarea.value
|
||||
if (!options.tabindex && textarea.tabIndex)
|
||||
options.tabindex = textarea.tabIndex
|
||||
if (!options.placeholder && textarea.placeholder)
|
||||
options.placeholder = textarea.placeholder
|
||||
// Set autofocus to true if this textarea is focused, or if it has
|
||||
// autofocus and no other element is focused.
|
||||
if (options.autofocus == null) {
|
||||
let hasFocus = activeElt()
|
||||
options.autofocus = hasFocus == textarea ||
|
||||
textarea.getAttribute("autofocus") != null && hasFocus == document.body
|
||||
}
|
||||
|
||||
function save() {textarea.value = cm.getValue()}
|
||||
|
||||
let realSubmit
|
||||
if (textarea.form) {
|
||||
on(textarea.form, "submit", save)
|
||||
// Deplorable hack to make the submit method do the right thing.
|
||||
if (!options.leaveSubmitMethodAlone) {
|
||||
let form = textarea.form
|
||||
realSubmit = form.submit
|
||||
try {
|
||||
let wrappedSubmit = form.submit = () => {
|
||||
save()
|
||||
form.submit = realSubmit
|
||||
form.submit()
|
||||
form.submit = wrappedSubmit
|
||||
}
|
||||
} catch(e) {}
|
||||
}
|
||||
}
|
||||
|
||||
options.finishInit = cm => {
|
||||
cm.save = save
|
||||
cm.getTextArea = () => textarea
|
||||
cm.toTextArea = () => {
|
||||
cm.toTextArea = isNaN // Prevent this from being ran twice
|
||||
save()
|
||||
textarea.parentNode.removeChild(cm.getWrapperElement())
|
||||
textarea.style.display = ""
|
||||
if (textarea.form) {
|
||||
off(textarea.form, "submit", save)
|
||||
if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
|
||||
textarea.form.submit = realSubmit
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
textarea.style.display = "none"
|
||||
let cm = CodeMirror(node => textarea.parentNode.insertBefore(node, textarea.nextSibling),
|
||||
options)
|
||||
return cm
|
||||
}
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
import { onBlur } from "../display/focus.js"
|
||||
import { on } from "../util/event.js"
|
||||
|
||||
// These must be handled carefully, because naively registering a
|
||||
// handler for each editor will cause the editors to never be
|
||||
// garbage collected.
|
||||
|
||||
function forEachCodeMirror(f) {
|
||||
if (!document.getElementsByClassName) return
|
||||
let byClass = document.getElementsByClassName("CodeMirror"), editors = []
|
||||
for (let i = 0; i < byClass.length; i++) {
|
||||
let cm = byClass[i].CodeMirror
|
||||
if (cm) editors.push(cm)
|
||||
}
|
||||
if (editors.length) editors[0].operation(() => {
|
||||
for (let i = 0; i < editors.length; i++) f(editors[i])
|
||||
})
|
||||
}
|
||||
|
||||
let globalsRegistered = false
|
||||
export function ensureGlobalHandlers() {
|
||||
if (globalsRegistered) return
|
||||
registerGlobalHandlers()
|
||||
globalsRegistered = true
|
||||
}
|
||||
function registerGlobalHandlers() {
|
||||
// When the window resizes, we need to refresh active editors.
|
||||
let resizeTimer
|
||||
on(window, "resize", () => {
|
||||
if (resizeTimer == null) resizeTimer = setTimeout(() => {
|
||||
resizeTimer = null
|
||||
forEachCodeMirror(onResize)
|
||||
}, 100)
|
||||
})
|
||||
// When the window loses focus, we want to show the editor as blurred
|
||||
on(window, "blur", () => forEachCodeMirror(onBlur))
|
||||
}
|
||||
// Called when the window resizes
|
||||
function onResize(cm) {
|
||||
let d = cm.display
|
||||
// Might be a text scaling operation, clear size caches.
|
||||
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
|
||||
d.scrollbarsClipped = false
|
||||
cm.setSize()
|
||||
}
|
||||
|
|
@ -0,0 +1,163 @@
|
|||
import { signalLater } from "../util/operation_group.js"
|
||||
import { restartBlink } from "../display/selection.js"
|
||||
import { isModifierKey, keyName, lookupKey } from "../input/keymap.js"
|
||||
import { eventInWidget } from "../measurement/widgets.js"
|
||||
import { ie, ie_version, mac, presto, gecko } from "../util/browser.js"
|
||||
import { activeElt, addClass, rmClass } from "../util/dom.js"
|
||||
import { e_preventDefault, off, on, signalDOMEvent } from "../util/event.js"
|
||||
import { hasCopyEvent } from "../util/feature_detection.js"
|
||||
import { Delayed, Pass } from "../util/misc.js"
|
||||
|
||||
import { commands } from "./commands.js"
|
||||
|
||||
// Run a handler that was bound to a key.
|
||||
function doHandleBinding(cm, bound, dropShift) {
|
||||
if (typeof bound == "string") {
|
||||
bound = commands[bound]
|
||||
if (!bound) return false
|
||||
}
|
||||
// Ensure previous input has been read, so that the handler sees a
|
||||
// consistent view of the document
|
||||
cm.display.input.ensurePolled()
|
||||
let prevShift = cm.display.shift, done = false
|
||||
try {
|
||||
if (cm.isReadOnly()) cm.state.suppressEdits = true
|
||||
if (dropShift) cm.display.shift = false
|
||||
done = bound(cm) != Pass
|
||||
} finally {
|
||||
cm.display.shift = prevShift
|
||||
cm.state.suppressEdits = false
|
||||
}
|
||||
return done
|
||||
}
|
||||
|
||||
function lookupKeyForEditor(cm, name, handle) {
|
||||
for (let i = 0; i < cm.state.keyMaps.length; i++) {
|
||||
let result = lookupKey(name, cm.state.keyMaps[i], handle, cm)
|
||||
if (result) return result
|
||||
}
|
||||
return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
|
||||
|| lookupKey(name, cm.options.keyMap, handle, cm)
|
||||
}
|
||||
|
||||
// Note that, despite the name, this function is also used to check
|
||||
// for bound mouse clicks.
|
||||
|
||||
let stopSeq = new Delayed
|
||||
|
||||
export function dispatchKey(cm, name, e, handle) {
|
||||
let seq = cm.state.keySeq
|
||||
if (seq) {
|
||||
if (isModifierKey(name)) return "handled"
|
||||
if (/\'$/.test(name))
|
||||
cm.state.keySeq = null
|
||||
else
|
||||
stopSeq.set(50, () => {
|
||||
if (cm.state.keySeq == seq) {
|
||||
cm.state.keySeq = null
|
||||
cm.display.input.reset()
|
||||
}
|
||||
})
|
||||
if (dispatchKeyInner(cm, seq + " " + name, e, handle)) return true
|
||||
}
|
||||
return dispatchKeyInner(cm, name, e, handle)
|
||||
}
|
||||
|
||||
function dispatchKeyInner(cm, name, e, handle) {
|
||||
let result = lookupKeyForEditor(cm, name, handle)
|
||||
|
||||
if (result == "multi")
|
||||
cm.state.keySeq = name
|
||||
if (result == "handled")
|
||||
signalLater(cm, "keyHandled", cm, name, e)
|
||||
|
||||
if (result == "handled" || result == "multi") {
|
||||
e_preventDefault(e)
|
||||
restartBlink(cm)
|
||||
}
|
||||
|
||||
return !!result
|
||||
}
|
||||
|
||||
// Handle a key from the keydown event.
|
||||
function handleKeyBinding(cm, e) {
|
||||
let name = keyName(e, true)
|
||||
if (!name) return false
|
||||
|
||||
if (e.shiftKey && !cm.state.keySeq) {
|
||||
// First try to resolve full name (including 'Shift-'). Failing
|
||||
// that, see if there is a cursor-motion command (starting with
|
||||
// 'go') bound to the keyname without 'Shift-'.
|
||||
return dispatchKey(cm, "Shift-" + name, e, b => doHandleBinding(cm, b, true))
|
||||
|| dispatchKey(cm, name, e, b => {
|
||||
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
|
||||
return doHandleBinding(cm, b)
|
||||
})
|
||||
} else {
|
||||
return dispatchKey(cm, name, e, b => doHandleBinding(cm, b))
|
||||
}
|
||||
}
|
||||
|
||||
// Handle a key from the keypress event
|
||||
function handleCharBinding(cm, e, ch) {
|
||||
return dispatchKey(cm, "'" + ch + "'", e, b => doHandleBinding(cm, b, true))
|
||||
}
|
||||
|
||||
let lastStoppedKey = null
|
||||
export function onKeyDown(e) {
|
||||
let cm = this
|
||||
if (e.target && e.target != cm.display.input.getField()) return
|
||||
cm.curOp.focus = activeElt()
|
||||
if (signalDOMEvent(cm, e)) return
|
||||
// IE does strange things with escape.
|
||||
if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false
|
||||
let code = e.keyCode
|
||||
cm.display.shift = code == 16 || e.shiftKey
|
||||
let handled = handleKeyBinding(cm, e)
|
||||
if (presto) {
|
||||
lastStoppedKey = handled ? code : null
|
||||
// Opera has no cut event... we try to at least catch the key combo
|
||||
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
|
||||
cm.replaceSelection("", null, "cut")
|
||||
}
|
||||
if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
|
||||
document.execCommand("cut")
|
||||
|
||||
// Turn mouse into crosshair when Alt is held on Mac.
|
||||
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
|
||||
showCrossHair(cm)
|
||||
}
|
||||
|
||||
function showCrossHair(cm) {
|
||||
let lineDiv = cm.display.lineDiv
|
||||
addClass(lineDiv, "CodeMirror-crosshair")
|
||||
|
||||
function up(e) {
|
||||
if (e.keyCode == 18 || !e.altKey) {
|
||||
rmClass(lineDiv, "CodeMirror-crosshair")
|
||||
off(document, "keyup", up)
|
||||
off(document, "mouseover", up)
|
||||
}
|
||||
}
|
||||
on(document, "keyup", up)
|
||||
on(document, "mouseover", up)
|
||||
}
|
||||
|
||||
export function onKeyUp(e) {
|
||||
if (e.keyCode == 16) this.doc.sel.shift = false
|
||||
signalDOMEvent(this, e)
|
||||
}
|
||||
|
||||
export function onKeyPress(e) {
|
||||
let cm = this
|
||||
if (e.target && e.target != cm.display.input.getField()) return
|
||||
if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return
|
||||
let keyCode = e.keyCode, charCode = e.charCode
|
||||
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
|
||||
if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return
|
||||
let ch = String.fromCharCode(charCode == null ? keyCode : charCode)
|
||||
// Some browsers fire keypress events for backspace
|
||||
if (ch == "\x08") return
|
||||
if (handleCharBinding(cm, e, ch)) return
|
||||
cm.display.input.onKeyPress(e)
|
||||
}
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
import { scrollbarModel } from "../display/scrollbars.js"
|
||||
import { wheelEventPixels } from "../display/scroll_events.js"
|
||||
import { keyMap, keyName, isModifierKey, lookupKey, normalizeKeyMap } from "../input/keymap.js"
|
||||
import { keyNames } from "../input/keynames.js"
|
||||
import { Line } from "../line/line_data.js"
|
||||
import { cmp, Pos } from "../line/pos.js"
|
||||
import { changeEnd } from "../model/change_measurement.js"
|
||||
import Doc from "../model/Doc.js"
|
||||
import { LineWidget } from "../model/line_widget.js"
|
||||
import { SharedTextMarker, TextMarker } from "../model/mark_text.js"
|
||||
import { copyState, extendMode, getMode, innerMode, mimeModes, modeExtensions, modes, resolveMode, startState } from "../modes.js"
|
||||
import { addClass, contains, rmClass } from "../util/dom.js"
|
||||
import { e_preventDefault, e_stop, e_stopPropagation, off, on, signal } from "../util/event.js"
|
||||
import { splitLinesAuto } from "../util/feature_detection.js"
|
||||
import { countColumn, findColumn, isWordCharBasic, Pass } from "../util/misc.js"
|
||||
import StringStream from "../util/StringStream.js"
|
||||
|
||||
import { commands } from "./commands.js"
|
||||
|
||||
export function addLegacyProps(CodeMirror) {
|
||||
CodeMirror.off = off
|
||||
CodeMirror.on = on
|
||||
CodeMirror.wheelEventPixels = wheelEventPixels
|
||||
CodeMirror.Doc = Doc
|
||||
CodeMirror.splitLines = splitLinesAuto
|
||||
CodeMirror.countColumn = countColumn
|
||||
CodeMirror.findColumn = findColumn
|
||||
CodeMirror.isWordChar = isWordCharBasic
|
||||
CodeMirror.Pass = Pass
|
||||
CodeMirror.signal = signal
|
||||
CodeMirror.Line = Line
|
||||
CodeMirror.changeEnd = changeEnd
|
||||
CodeMirror.scrollbarModel = scrollbarModel
|
||||
CodeMirror.Pos = Pos
|
||||
CodeMirror.cmpPos = cmp
|
||||
CodeMirror.modes = modes
|
||||
CodeMirror.mimeModes = mimeModes
|
||||
CodeMirror.resolveMode = resolveMode
|
||||
CodeMirror.getMode = getMode
|
||||
CodeMirror.modeExtensions = modeExtensions
|
||||
CodeMirror.extendMode = extendMode
|
||||
CodeMirror.copyState = copyState
|
||||
CodeMirror.startState = startState
|
||||
CodeMirror.innerMode = innerMode
|
||||
CodeMirror.commands = commands
|
||||
CodeMirror.keyMap = keyMap
|
||||
CodeMirror.keyName = keyName
|
||||
CodeMirror.isModifierKey = isModifierKey
|
||||
CodeMirror.lookupKey = lookupKey
|
||||
CodeMirror.normalizeKeyMap = normalizeKeyMap
|
||||
CodeMirror.StringStream = StringStream
|
||||
CodeMirror.SharedTextMarker = SharedTextMarker
|
||||
CodeMirror.TextMarker = TextMarker
|
||||
CodeMirror.LineWidget = LineWidget
|
||||
CodeMirror.e_preventDefault = e_preventDefault
|
||||
CodeMirror.e_stopPropagation = e_stopPropagation
|
||||
CodeMirror.e_stop = e_stop
|
||||
CodeMirror.addClass = addClass
|
||||
CodeMirror.contains = contains
|
||||
CodeMirror.rmClass = rmClass
|
||||
CodeMirror.keyNames = keyNames
|
||||
}
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
// EDITOR CONSTRUCTOR
|
||||
|
||||
import { CodeMirror } from "./CodeMirror.js"
|
||||
export { CodeMirror } from "./CodeMirror.js"
|
||||
|
||||
import { eventMixin } from "../util/event.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
import { defineOptions } from "./options.js"
|
||||
|
||||
defineOptions(CodeMirror)
|
||||
|
||||
import addEditorMethods from "./methods.js"
|
||||
|
||||
addEditorMethods(CodeMirror)
|
||||
|
||||
import Doc from "../model/Doc.js"
|
||||
|
||||
// Set up methods on CodeMirror's prototype to redirect to the editor's document.
|
||||
let dontDelegate = "iter insert remove copy getEditor constructor".split(" ")
|
||||
for (let prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
|
||||
CodeMirror.prototype[prop] = (function(method) {
|
||||
return function() {return method.apply(this.doc, arguments)}
|
||||
})(Doc.prototype[prop])
|
||||
|
||||
eventMixin(Doc)
|
||||
|
||||
// INPUT HANDLING
|
||||
|
||||
import ContentEditableInput from "../input/ContentEditableInput.js"
|
||||
import TextareaInput from "../input/TextareaInput.js"
|
||||
CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}
|
||||
|
||||
// MODE DEFINITION AND QUERYING
|
||||
|
||||
import { defineMIME, defineMode } from "../modes.js"
|
||||
|
||||
// Extra arguments are stored as the mode's dependencies, which is
|
||||
// used by (legacy) mechanisms like loadmode.js to automatically
|
||||
// load a mode. (Preferred mechanism is the require/define calls.)
|
||||
CodeMirror.defineMode = function(name/*, mode, …*/) {
|
||||
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name
|
||||
defineMode.apply(this, arguments)
|
||||
}
|
||||
|
||||
CodeMirror.defineMIME = defineMIME
|
||||
|
||||
// Minimal default mode.
|
||||
CodeMirror.defineMode("null", () => ({token: stream => stream.skipToEnd()}))
|
||||
CodeMirror.defineMIME("text/plain", "null")
|
||||
|
||||
// EXTENSIONS
|
||||
|
||||
CodeMirror.defineExtension = (name, func) => {
|
||||
CodeMirror.prototype[name] = func
|
||||
}
|
||||
CodeMirror.defineDocExtension = (name, func) => {
|
||||
Doc.prototype[name] = func
|
||||
}
|
||||
|
||||
import { fromTextArea } from "./fromTextArea.js"
|
||||
|
||||
CodeMirror.fromTextArea = fromTextArea
|
||||
|
||||
import { addLegacyProps } from "./legacy.js"
|
||||
|
||||
addLegacyProps(CodeMirror)
|
||||
|
||||
CodeMirror.version = "5.56.0"
|
||||
|
|
@ -0,0 +1,547 @@
|
|||
import { deleteNearSelection } from "./deleteNearSelection.js"
|
||||
import { commands } from "./commands.js"
|
||||
import { attachDoc } from "../model/document_data.js"
|
||||
import { activeElt, addClass, rmClass } from "../util/dom.js"
|
||||
import { eventMixin, signal } from "../util/event.js"
|
||||
import { getLineStyles, getContextBefore, takeToken } from "../line/highlight.js"
|
||||
import { indentLine } from "../input/indent.js"
|
||||
import { triggerElectric } from "../input/input.js"
|
||||
import { onKeyDown, onKeyPress, onKeyUp } from "./key_events.js"
|
||||
import { onMouseDown } from "./mouse_events.js"
|
||||
import { getKeyMap } from "../input/keymap.js"
|
||||
import { endOfLine, moveLogically, moveVisually } from "../input/movement.js"
|
||||
import { endOperation, methodOp, operation, runInOp, startOperation } from "../display/operations.js"
|
||||
import { clipLine, clipPos, equalCursorPos, Pos } from "../line/pos.js"
|
||||
import { charCoords, charWidth, clearCaches, clearLineMeasurementCache, coordsChar, cursorCoords, displayHeight, displayWidth, estimateLineHeights, fromCoordSystem, intoCoordSystem, scrollGap, textHeight } from "../measurement/position_measurement.js"
|
||||
import { Range } from "../model/selection.js"
|
||||
import { replaceOneSelection, skipAtomic } from "../model/selection_updates.js"
|
||||
import { addToScrollTop, ensureCursorVisible, scrollIntoView, scrollToCoords, scrollToCoordsRange, scrollToRange } from "../display/scrolling.js"
|
||||
import { heightAtLine } from "../line/spans.js"
|
||||
import { updateGutterSpace } from "../display/update_display.js"
|
||||
import { indexOf, insertSorted, isWordChar, sel_dontScroll, sel_move } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
import { getLine, isLine, lineAtHeight } from "../line/utils_line.js"
|
||||
import { regChange, regLineChange } from "../display/view_tracking.js"
|
||||
|
||||
// The publicly visible API. Note that methodOp(f) means
|
||||
// 'wrap f in an operation, performed on its `this` parameter'.
|
||||
|
||||
// This is not the complete set of editor methods. Most of the
|
||||
// methods defined on the Doc type are also injected into
|
||||
// CodeMirror.prototype, for backwards compatibility and
|
||||
// convenience.
|
||||
|
||||
export default function(CodeMirror) {
|
||||
let optionHandlers = CodeMirror.optionHandlers
|
||||
|
||||
let helpers = CodeMirror.helpers = {}
|
||||
|
||||
CodeMirror.prototype = {
|
||||
constructor: CodeMirror,
|
||||
focus: function(){window.focus(); this.display.input.focus()},
|
||||
|
||||
setOption: function(option, value) {
|
||||
let options = this.options, old = options[option]
|
||||
if (options[option] == value && option != "mode") return
|
||||
options[option] = value
|
||||
if (optionHandlers.hasOwnProperty(option))
|
||||
operation(this, optionHandlers[option])(this, value, old)
|
||||
signal(this, "optionChange", this, option)
|
||||
},
|
||||
|
||||
getOption: function(option) {return this.options[option]},
|
||||
getDoc: function() {return this.doc},
|
||||
|
||||
addKeyMap: function(map, bottom) {
|
||||
this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map))
|
||||
},
|
||||
removeKeyMap: function(map) {
|
||||
let maps = this.state.keyMaps
|
||||
for (let i = 0; i < maps.length; ++i)
|
||||
if (maps[i] == map || maps[i].name == map) {
|
||||
maps.splice(i, 1)
|
||||
return true
|
||||
}
|
||||
},
|
||||
|
||||
addOverlay: methodOp(function(spec, options) {
|
||||
let mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)
|
||||
if (mode.startState) throw new Error("Overlays may not be stateful.")
|
||||
insertSorted(this.state.overlays,
|
||||
{mode: mode, modeSpec: spec, opaque: options && options.opaque,
|
||||
priority: (options && options.priority) || 0},
|
||||
overlay => overlay.priority)
|
||||
this.state.modeGen++
|
||||
regChange(this)
|
||||
}),
|
||||
removeOverlay: methodOp(function(spec) {
|
||||
let overlays = this.state.overlays
|
||||
for (let i = 0; i < overlays.length; ++i) {
|
||||
let cur = overlays[i].modeSpec
|
||||
if (cur == spec || typeof spec == "string" && cur.name == spec) {
|
||||
overlays.splice(i, 1)
|
||||
this.state.modeGen++
|
||||
regChange(this)
|
||||
return
|
||||
}
|
||||
}
|
||||
}),
|
||||
|
||||
indentLine: methodOp(function(n, dir, aggressive) {
|
||||
if (typeof dir != "string" && typeof dir != "number") {
|
||||
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"
|
||||
else dir = dir ? "add" : "subtract"
|
||||
}
|
||||
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive)
|
||||
}),
|
||||
indentSelection: methodOp(function(how) {
|
||||
let ranges = this.doc.sel.ranges, end = -1
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
let range = ranges[i]
|
||||
if (!range.empty()) {
|
||||
let from = range.from(), to = range.to()
|
||||
let start = Math.max(end, from.line)
|
||||
end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1
|
||||
for (let j = start; j < end; ++j)
|
||||
indentLine(this, j, how)
|
||||
let newRanges = this.doc.sel.ranges
|
||||
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
|
||||
replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll)
|
||||
} else if (range.head.line > end) {
|
||||
indentLine(this, range.head.line, how, true)
|
||||
end = range.head.line
|
||||
if (i == this.doc.sel.primIndex) ensureCursorVisible(this)
|
||||
}
|
||||
}
|
||||
}),
|
||||
|
||||
// Fetch the parser token for a given character. Useful for hacks
|
||||
// that want to inspect the mode state (say, for completion).
|
||||
getTokenAt: function(pos, precise) {
|
||||
return takeToken(this, pos, precise)
|
||||
},
|
||||
|
||||
getLineTokens: function(line, precise) {
|
||||
return takeToken(this, Pos(line), precise, true)
|
||||
},
|
||||
|
||||
getTokenTypeAt: function(pos) {
|
||||
pos = clipPos(this.doc, pos)
|
||||
let styles = getLineStyles(this, getLine(this.doc, pos.line))
|
||||
let before = 0, after = (styles.length - 1) / 2, ch = pos.ch
|
||||
let type
|
||||
if (ch == 0) type = styles[2]
|
||||
else for (;;) {
|
||||
let mid = (before + after) >> 1
|
||||
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid
|
||||
else if (styles[mid * 2 + 1] < ch) before = mid + 1
|
||||
else { type = styles[mid * 2 + 2]; break }
|
||||
}
|
||||
let cut = type ? type.indexOf("overlay ") : -1
|
||||
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
|
||||
},
|
||||
|
||||
getModeAt: function(pos) {
|
||||
let mode = this.doc.mode
|
||||
if (!mode.innerMode) return mode
|
||||
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
|
||||
},
|
||||
|
||||
getHelper: function(pos, type) {
|
||||
return this.getHelpers(pos, type)[0]
|
||||
},
|
||||
|
||||
getHelpers: function(pos, type) {
|
||||
let found = []
|
||||
if (!helpers.hasOwnProperty(type)) return found
|
||||
let help = helpers[type], mode = this.getModeAt(pos)
|
||||
if (typeof mode[type] == "string") {
|
||||
if (help[mode[type]]) found.push(help[mode[type]])
|
||||
} else if (mode[type]) {
|
||||
for (let i = 0; i < mode[type].length; i++) {
|
||||
let val = help[mode[type][i]]
|
||||
if (val) found.push(val)
|
||||
}
|
||||
} else if (mode.helperType && help[mode.helperType]) {
|
||||
found.push(help[mode.helperType])
|
||||
} else if (help[mode.name]) {
|
||||
found.push(help[mode.name])
|
||||
}
|
||||
for (let i = 0; i < help._global.length; i++) {
|
||||
let cur = help._global[i]
|
||||
if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
|
||||
found.push(cur.val)
|
||||
}
|
||||
return found
|
||||
},
|
||||
|
||||
getStateAfter: function(line, precise) {
|
||||
let doc = this.doc
|
||||
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)
|
||||
return getContextBefore(this, line + 1, precise).state
|
||||
},
|
||||
|
||||
cursorCoords: function(start, mode) {
|
||||
let pos, range = this.doc.sel.primary()
|
||||
if (start == null) pos = range.head
|
||||
else if (typeof start == "object") pos = clipPos(this.doc, start)
|
||||
else pos = start ? range.from() : range.to()
|
||||
return cursorCoords(this, pos, mode || "page")
|
||||
},
|
||||
|
||||
charCoords: function(pos, mode) {
|
||||
return charCoords(this, clipPos(this.doc, pos), mode || "page")
|
||||
},
|
||||
|
||||
coordsChar: function(coords, mode) {
|
||||
coords = fromCoordSystem(this, coords, mode || "page")
|
||||
return coordsChar(this, coords.left, coords.top)
|
||||
},
|
||||
|
||||
lineAtHeight: function(height, mode) {
|
||||
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top
|
||||
return lineAtHeight(this.doc, height + this.display.viewOffset)
|
||||
},
|
||||
heightAtLine: function(line, mode, includeWidgets) {
|
||||
let end = false, lineObj
|
||||
if (typeof line == "number") {
|
||||
let last = this.doc.first + this.doc.size - 1
|
||||
if (line < this.doc.first) line = this.doc.first
|
||||
else if (line > last) { line = last; end = true }
|
||||
lineObj = getLine(this.doc, line)
|
||||
} else {
|
||||
lineObj = line
|
||||
}
|
||||
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
|
||||
(end ? this.doc.height - heightAtLine(lineObj) : 0)
|
||||
},
|
||||
|
||||
defaultTextHeight: function() { return textHeight(this.display) },
|
||||
defaultCharWidth: function() { return charWidth(this.display) },
|
||||
|
||||
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
|
||||
|
||||
addWidget: function(pos, node, scroll, vert, horiz) {
|
||||
let display = this.display
|
||||
pos = cursorCoords(this, clipPos(this.doc, pos))
|
||||
let top = pos.bottom, left = pos.left
|
||||
node.style.position = "absolute"
|
||||
node.setAttribute("cm-ignore-events", "true")
|
||||
this.display.input.setUneditable(node)
|
||||
display.sizer.appendChild(node)
|
||||
if (vert == "over") {
|
||||
top = pos.top
|
||||
} else if (vert == "above" || vert == "near") {
|
||||
let vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
|
||||
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)
|
||||
// Default to positioning above (if specified and possible); otherwise default to positioning below
|
||||
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
|
||||
top = pos.top - node.offsetHeight
|
||||
else if (pos.bottom + node.offsetHeight <= vspace)
|
||||
top = pos.bottom
|
||||
if (left + node.offsetWidth > hspace)
|
||||
left = hspace - node.offsetWidth
|
||||
}
|
||||
node.style.top = top + "px"
|
||||
node.style.left = node.style.right = ""
|
||||
if (horiz == "right") {
|
||||
left = display.sizer.clientWidth - node.offsetWidth
|
||||
node.style.right = "0px"
|
||||
} else {
|
||||
if (horiz == "left") left = 0
|
||||
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2
|
||||
node.style.left = left + "px"
|
||||
}
|
||||
if (scroll)
|
||||
scrollIntoView(this, {left, top, right: left + node.offsetWidth, bottom: top + node.offsetHeight})
|
||||
},
|
||||
|
||||
triggerOnKeyDown: methodOp(onKeyDown),
|
||||
triggerOnKeyPress: methodOp(onKeyPress),
|
||||
triggerOnKeyUp: onKeyUp,
|
||||
triggerOnMouseDown: methodOp(onMouseDown),
|
||||
|
||||
execCommand: function(cmd) {
|
||||
if (commands.hasOwnProperty(cmd))
|
||||
return commands[cmd].call(null, this)
|
||||
},
|
||||
|
||||
triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),
|
||||
|
||||
findPosH: function(from, amount, unit, visually) {
|
||||
let dir = 1
|
||||
if (amount < 0) { dir = -1; amount = -amount }
|
||||
let cur = clipPos(this.doc, from)
|
||||
for (let i = 0; i < amount; ++i) {
|
||||
cur = findPosH(this.doc, cur, dir, unit, visually)
|
||||
if (cur.hitSide) break
|
||||
}
|
||||
return cur
|
||||
},
|
||||
|
||||
moveH: methodOp(function(dir, unit) {
|
||||
this.extendSelectionsBy(range => {
|
||||
if (this.display.shift || this.doc.extend || range.empty())
|
||||
return findPosH(this.doc, range.head, dir, unit, this.options.rtlMoveVisually)
|
||||
else
|
||||
return dir < 0 ? range.from() : range.to()
|
||||
}, sel_move)
|
||||
}),
|
||||
|
||||
deleteH: methodOp(function(dir, unit) {
|
||||
let sel = this.doc.sel, doc = this.doc
|
||||
if (sel.somethingSelected())
|
||||
doc.replaceSelection("", null, "+delete")
|
||||
else
|
||||
deleteNearSelection(this, range => {
|
||||
let other = findPosH(doc, range.head, dir, unit, false)
|
||||
return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
|
||||
})
|
||||
}),
|
||||
|
||||
findPosV: function(from, amount, unit, goalColumn) {
|
||||
let dir = 1, x = goalColumn
|
||||
if (amount < 0) { dir = -1; amount = -amount }
|
||||
let cur = clipPos(this.doc, from)
|
||||
for (let i = 0; i < amount; ++i) {
|
||||
let coords = cursorCoords(this, cur, "div")
|
||||
if (x == null) x = coords.left
|
||||
else coords.left = x
|
||||
cur = findPosV(this, coords, dir, unit)
|
||||
if (cur.hitSide) break
|
||||
}
|
||||
return cur
|
||||
},
|
||||
|
||||
moveV: methodOp(function(dir, unit) {
|
||||
let doc = this.doc, goals = []
|
||||
let collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()
|
||||
doc.extendSelectionsBy(range => {
|
||||
if (collapse)
|
||||
return dir < 0 ? range.from() : range.to()
|
||||
let headPos = cursorCoords(this, range.head, "div")
|
||||
if (range.goalColumn != null) headPos.left = range.goalColumn
|
||||
goals.push(headPos.left)
|
||||
let pos = findPosV(this, headPos, dir, unit)
|
||||
if (unit == "page" && range == doc.sel.primary())
|
||||
addToScrollTop(this, charCoords(this, pos, "div").top - headPos.top)
|
||||
return pos
|
||||
}, sel_move)
|
||||
if (goals.length) for (let i = 0; i < doc.sel.ranges.length; i++)
|
||||
doc.sel.ranges[i].goalColumn = goals[i]
|
||||
}),
|
||||
|
||||
// Find the word at the given position (as returned by coordsChar).
|
||||
findWordAt: function(pos) {
|
||||
let doc = this.doc, line = getLine(doc, pos.line).text
|
||||
let start = pos.ch, end = pos.ch
|
||||
if (line) {
|
||||
let helper = this.getHelper(pos, "wordChars")
|
||||
if ((pos.sticky == "before" || end == line.length) && start) --start; else ++end
|
||||
let startChar = line.charAt(start)
|
||||
let check = isWordChar(startChar, helper)
|
||||
? ch => isWordChar(ch, helper)
|
||||
: /\s/.test(startChar) ? ch => /\s/.test(ch)
|
||||
: ch => (!/\s/.test(ch) && !isWordChar(ch))
|
||||
while (start > 0 && check(line.charAt(start - 1))) --start
|
||||
while (end < line.length && check(line.charAt(end))) ++end
|
||||
}
|
||||
return new Range(Pos(pos.line, start), Pos(pos.line, end))
|
||||
},
|
||||
|
||||
toggleOverwrite: function(value) {
|
||||
if (value != null && value == this.state.overwrite) return
|
||||
if (this.state.overwrite = !this.state.overwrite)
|
||||
addClass(this.display.cursorDiv, "CodeMirror-overwrite")
|
||||
else
|
||||
rmClass(this.display.cursorDiv, "CodeMirror-overwrite")
|
||||
|
||||
signal(this, "overwriteToggle", this, this.state.overwrite)
|
||||
},
|
||||
hasFocus: function() { return this.display.input.getField() == activeElt() },
|
||||
isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
|
||||
|
||||
scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y) }),
|
||||
getScrollInfo: function() {
|
||||
let scroller = this.display.scroller
|
||||
return {left: scroller.scrollLeft, top: scroller.scrollTop,
|
||||
height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
|
||||
width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
|
||||
clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
|
||||
},
|
||||
|
||||
scrollIntoView: methodOp(function(range, margin) {
|
||||
if (range == null) {
|
||||
range = {from: this.doc.sel.primary().head, to: null}
|
||||
if (margin == null) margin = this.options.cursorScrollMargin
|
||||
} else if (typeof range == "number") {
|
||||
range = {from: Pos(range, 0), to: null}
|
||||
} else if (range.from == null) {
|
||||
range = {from: range, to: null}
|
||||
}
|
||||
if (!range.to) range.to = range.from
|
||||
range.margin = margin || 0
|
||||
|
||||
if (range.from.line != null) {
|
||||
scrollToRange(this, range)
|
||||
} else {
|
||||
scrollToCoordsRange(this, range.from, range.to, range.margin)
|
||||
}
|
||||
}),
|
||||
|
||||
setSize: methodOp(function(width, height) {
|
||||
let interpret = val => typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val
|
||||
if (width != null) this.display.wrapper.style.width = interpret(width)
|
||||
if (height != null) this.display.wrapper.style.height = interpret(height)
|
||||
if (this.options.lineWrapping) clearLineMeasurementCache(this)
|
||||
let lineNo = this.display.viewFrom
|
||||
this.doc.iter(lineNo, this.display.viewTo, line => {
|
||||
if (line.widgets) for (let i = 0; i < line.widgets.length; i++)
|
||||
if (line.widgets[i].noHScroll) { regLineChange(this, lineNo, "widget"); break }
|
||||
++lineNo
|
||||
})
|
||||
this.curOp.forceUpdate = true
|
||||
signal(this, "refresh", this)
|
||||
}),
|
||||
|
||||
operation: function(f){return runInOp(this, f)},
|
||||
startOperation: function(){return startOperation(this)},
|
||||
endOperation: function(){return endOperation(this)},
|
||||
|
||||
refresh: methodOp(function() {
|
||||
let oldHeight = this.display.cachedTextHeight
|
||||
regChange(this)
|
||||
this.curOp.forceUpdate = true
|
||||
clearCaches(this)
|
||||
scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop)
|
||||
updateGutterSpace(this.display)
|
||||
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
|
||||
estimateLineHeights(this)
|
||||
signal(this, "refresh", this)
|
||||
}),
|
||||
|
||||
swapDoc: methodOp(function(doc) {
|
||||
let old = this.doc
|
||||
old.cm = null
|
||||
// Cancel the current text selection if any (#5821)
|
||||
if (this.state.selectingText) this.state.selectingText()
|
||||
attachDoc(this, doc)
|
||||
clearCaches(this)
|
||||
this.display.input.reset()
|
||||
scrollToCoords(this, doc.scrollLeft, doc.scrollTop)
|
||||
this.curOp.forceScroll = true
|
||||
signalLater(this, "swapDoc", this, old)
|
||||
return old
|
||||
}),
|
||||
|
||||
phrase: function(phraseText) {
|
||||
let phrases = this.options.phrases
|
||||
return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
|
||||
},
|
||||
|
||||
getInputField: function(){return this.display.input.getField()},
|
||||
getWrapperElement: function(){return this.display.wrapper},
|
||||
getScrollerElement: function(){return this.display.scroller},
|
||||
getGutterElement: function(){return this.display.gutters}
|
||||
}
|
||||
eventMixin(CodeMirror)
|
||||
|
||||
CodeMirror.registerHelper = function(type, name, value) {
|
||||
if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []}
|
||||
helpers[type][name] = value
|
||||
}
|
||||
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
|
||||
CodeMirror.registerHelper(type, name, value)
|
||||
helpers[type]._global.push({pred: predicate, val: value})
|
||||
}
|
||||
}
|
||||
|
||||
// Used for horizontal relative motion. Dir is -1 or 1 (left or
|
||||
// right), unit can be "char", "column" (like char, but doesn't
|
||||
// cross line boundaries), "word" (across next word), or "group" (to
|
||||
// the start of next group of word or non-word-non-whitespace
|
||||
// chars). The visually param controls whether, in right-to-left
|
||||
// text, direction 1 means to move towards the next index in the
|
||||
// string, or towards the character to the right of the current
|
||||
// position. The resulting position will have a hitSide=true
|
||||
// property if it reached the end of the document.
|
||||
function findPosH(doc, pos, dir, unit, visually) {
|
||||
let oldPos = pos
|
||||
let origDir = dir
|
||||
let lineObj = getLine(doc, pos.line)
|
||||
let lineDir = visually && doc.direction == "rtl" ? -dir : dir
|
||||
function findNextLine() {
|
||||
let l = pos.line + lineDir
|
||||
if (l < doc.first || l >= doc.first + doc.size) return false
|
||||
pos = new Pos(l, pos.ch, pos.sticky)
|
||||
return lineObj = getLine(doc, l)
|
||||
}
|
||||
function moveOnce(boundToLine) {
|
||||
let next
|
||||
if (visually) {
|
||||
next = moveVisually(doc.cm, lineObj, pos, dir)
|
||||
} else {
|
||||
next = moveLogically(lineObj, pos, dir)
|
||||
}
|
||||
if (next == null) {
|
||||
if (!boundToLine && findNextLine())
|
||||
pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir)
|
||||
else
|
||||
return false
|
||||
} else {
|
||||
pos = next
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
if (unit == "char") {
|
||||
moveOnce()
|
||||
} else if (unit == "column") {
|
||||
moveOnce(true)
|
||||
} else if (unit == "word" || unit == "group") {
|
||||
let sawType = null, group = unit == "group"
|
||||
let helper = doc.cm && doc.cm.getHelper(pos, "wordChars")
|
||||
for (let first = true;; first = false) {
|
||||
if (dir < 0 && !moveOnce(!first)) break
|
||||
let cur = lineObj.text.charAt(pos.ch) || "\n"
|
||||
let type = isWordChar(cur, helper) ? "w"
|
||||
: group && cur == "\n" ? "n"
|
||||
: !group || /\s/.test(cur) ? null
|
||||
: "p"
|
||||
if (group && !first && !type) type = "s"
|
||||
if (sawType && sawType != type) {
|
||||
if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after"}
|
||||
break
|
||||
}
|
||||
|
||||
if (type) sawType = type
|
||||
if (dir > 0 && !moveOnce(!first)) break
|
||||
}
|
||||
}
|
||||
let result = skipAtomic(doc, pos, oldPos, origDir, true)
|
||||
if (equalCursorPos(oldPos, result)) result.hitSide = true
|
||||
return result
|
||||
}
|
||||
|
||||
// For relative vertical movement. Dir may be -1 or 1. Unit can be
|
||||
// "page" or "line". The resulting position will have a hitSide=true
|
||||
// property if it reached the end of the document.
|
||||
function findPosV(cm, pos, dir, unit) {
|
||||
let doc = cm.doc, x = pos.left, y
|
||||
if (unit == "page") {
|
||||
let pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
|
||||
let moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)
|
||||
y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
|
||||
|
||||
} else if (unit == "line") {
|
||||
y = dir > 0 ? pos.bottom + 3 : pos.top - 3
|
||||
}
|
||||
let target
|
||||
for (;;) {
|
||||
target = coordsChar(cm, x, y)
|
||||
if (!target.outside) break
|
||||
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
|
||||
y += dir * 5
|
||||
}
|
||||
return target
|
||||
}
|
||||
|
|
@ -0,0 +1,412 @@
|
|||
import { delayBlurEvent, ensureFocus } from "../display/focus.js"
|
||||
import { operation } from "../display/operations.js"
|
||||
import { visibleLines } from "../display/update_lines.js"
|
||||
import { clipPos, cmp, maxPos, minPos, Pos } from "../line/pos.js"
|
||||
import { getLine, lineAtHeight } from "../line/utils_line.js"
|
||||
import { posFromMouse } from "../measurement/position_measurement.js"
|
||||
import { eventInWidget } from "../measurement/widgets.js"
|
||||
import { normalizeSelection, Range, Selection } from "../model/selection.js"
|
||||
import { extendRange, extendSelection, replaceOneSelection, setSelection } from "../model/selection_updates.js"
|
||||
import { captureRightClick, chromeOS, ie, ie_version, mac, webkit, safari } from "../util/browser.js"
|
||||
import { getOrder, getBidiPartAt } from "../util/bidi.js"
|
||||
import { activeElt } from "../util/dom.js"
|
||||
import { e_button, e_defaultPrevented, e_preventDefault, e_target, hasHandler, off, on, signal, signalDOMEvent } from "../util/event.js"
|
||||
import { dragAndDrop } from "../util/feature_detection.js"
|
||||
import { bind, countColumn, findColumn, sel_mouse } from "../util/misc.js"
|
||||
import { addModifierNames } from "../input/keymap.js"
|
||||
import { Pass } from "../util/misc.js"
|
||||
|
||||
import { dispatchKey } from "./key_events.js"
|
||||
import { commands } from "./commands.js"
|
||||
|
||||
const DOUBLECLICK_DELAY = 400
|
||||
|
||||
class PastClick {
|
||||
constructor(time, pos, button) {
|
||||
this.time = time
|
||||
this.pos = pos
|
||||
this.button = button
|
||||
}
|
||||
|
||||
compare(time, pos, button) {
|
||||
return this.time + DOUBLECLICK_DELAY > time &&
|
||||
cmp(pos, this.pos) == 0 && button == this.button
|
||||
}
|
||||
}
|
||||
|
||||
let lastClick, lastDoubleClick
|
||||
function clickRepeat(pos, button) {
|
||||
let now = +new Date
|
||||
if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
|
||||
lastClick = lastDoubleClick = null
|
||||
return "triple"
|
||||
} else if (lastClick && lastClick.compare(now, pos, button)) {
|
||||
lastDoubleClick = new PastClick(now, pos, button)
|
||||
lastClick = null
|
||||
return "double"
|
||||
} else {
|
||||
lastClick = new PastClick(now, pos, button)
|
||||
lastDoubleClick = null
|
||||
return "single"
|
||||
}
|
||||
}
|
||||
|
||||
// A mouse down can be a single click, double click, triple click,
|
||||
// start of selection drag, start of text drag, new cursor
|
||||
// (ctrl-click), rectangle drag (alt-drag), or xwin
|
||||
// middle-click-paste. Or it might be a click on something we should
|
||||
// not interfere with, such as a scrollbar or widget.
|
||||
export function onMouseDown(e) {
|
||||
let cm = this, display = cm.display
|
||||
if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return
|
||||
display.input.ensurePolled()
|
||||
display.shift = e.shiftKey
|
||||
|
||||
if (eventInWidget(display, e)) {
|
||||
if (!webkit) {
|
||||
// Briefly turn off draggability, to allow widgets to do
|
||||
// normal dragging things.
|
||||
display.scroller.draggable = false
|
||||
setTimeout(() => display.scroller.draggable = true, 100)
|
||||
}
|
||||
return
|
||||
}
|
||||
if (clickInGutter(cm, e)) return
|
||||
let pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"
|
||||
window.focus()
|
||||
|
||||
// #3261: make sure, that we're not starting a second selection
|
||||
if (button == 1 && cm.state.selectingText)
|
||||
cm.state.selectingText(e)
|
||||
|
||||
if (pos && handleMappedButton(cm, button, pos, repeat, e)) return
|
||||
|
||||
if (button == 1) {
|
||||
if (pos) leftButtonDown(cm, pos, repeat, e)
|
||||
else if (e_target(e) == display.scroller) e_preventDefault(e)
|
||||
} else if (button == 2) {
|
||||
if (pos) extendSelection(cm.doc, pos)
|
||||
setTimeout(() => display.input.focus(), 20)
|
||||
} else if (button == 3) {
|
||||
if (captureRightClick) cm.display.input.onContextMenu(e)
|
||||
else delayBlurEvent(cm)
|
||||
}
|
||||
}
|
||||
|
||||
function handleMappedButton(cm, button, pos, repeat, event) {
|
||||
let name = "Click"
|
||||
if (repeat == "double") name = "Double" + name
|
||||
else if (repeat == "triple") name = "Triple" + name
|
||||
name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name
|
||||
|
||||
return dispatchKey(cm, addModifierNames(name, event), event, bound => {
|
||||
if (typeof bound == "string") bound = commands[bound]
|
||||
if (!bound) return false
|
||||
let done = false
|
||||
try {
|
||||
if (cm.isReadOnly()) cm.state.suppressEdits = true
|
||||
done = bound(cm, pos) != Pass
|
||||
} finally {
|
||||
cm.state.suppressEdits = false
|
||||
}
|
||||
return done
|
||||
})
|
||||
}
|
||||
|
||||
function configureMouse(cm, repeat, event) {
|
||||
let option = cm.getOption("configureMouse")
|
||||
let value = option ? option(cm, repeat, event) : {}
|
||||
if (value.unit == null) {
|
||||
let rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey
|
||||
value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"
|
||||
}
|
||||
if (value.extend == null || cm.doc.extend) value.extend = cm.doc.extend || event.shiftKey
|
||||
if (value.addNew == null) value.addNew = mac ? event.metaKey : event.ctrlKey
|
||||
if (value.moveOnDrag == null) value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey)
|
||||
return value
|
||||
}
|
||||
|
||||
function leftButtonDown(cm, pos, repeat, event) {
|
||||
if (ie) setTimeout(bind(ensureFocus, cm), 0)
|
||||
else cm.curOp.focus = activeElt()
|
||||
|
||||
let behavior = configureMouse(cm, repeat, event)
|
||||
|
||||
let sel = cm.doc.sel, contained
|
||||
if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
|
||||
repeat == "single" && (contained = sel.contains(pos)) > -1 &&
|
||||
(cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
|
||||
(cmp(contained.to(), pos) > 0 || pos.xRel < 0))
|
||||
leftButtonStartDrag(cm, event, pos, behavior)
|
||||
else
|
||||
leftButtonSelect(cm, event, pos, behavior)
|
||||
}
|
||||
|
||||
// Start a text drag. When it ends, see if any dragging actually
|
||||
// happen, and treat as a click if it didn't.
|
||||
function leftButtonStartDrag(cm, event, pos, behavior) {
|
||||
let display = cm.display, moved = false
|
||||
let dragEnd = operation(cm, e => {
|
||||
if (webkit) display.scroller.draggable = false
|
||||
cm.state.draggingText = false
|
||||
off(display.wrapper.ownerDocument, "mouseup", dragEnd)
|
||||
off(display.wrapper.ownerDocument, "mousemove", mouseMove)
|
||||
off(display.scroller, "dragstart", dragStart)
|
||||
off(display.scroller, "drop", dragEnd)
|
||||
if (!moved) {
|
||||
e_preventDefault(e)
|
||||
if (!behavior.addNew)
|
||||
extendSelection(cm.doc, pos, null, null, behavior.extend)
|
||||
// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
|
||||
if ((webkit && !safari) || ie && ie_version == 9)
|
||||
setTimeout(() => {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus()}, 20)
|
||||
else
|
||||
display.input.focus()
|
||||
}
|
||||
})
|
||||
let mouseMove = function(e2) {
|
||||
moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10
|
||||
}
|
||||
let dragStart = () => moved = true
|
||||
// Let the drag handler handle this.
|
||||
if (webkit) display.scroller.draggable = true
|
||||
cm.state.draggingText = dragEnd
|
||||
dragEnd.copy = !behavior.moveOnDrag
|
||||
// IE's approach to draggable
|
||||
if (display.scroller.dragDrop) display.scroller.dragDrop()
|
||||
on(display.wrapper.ownerDocument, "mouseup", dragEnd)
|
||||
on(display.wrapper.ownerDocument, "mousemove", mouseMove)
|
||||
on(display.scroller, "dragstart", dragStart)
|
||||
on(display.scroller, "drop", dragEnd)
|
||||
|
||||
delayBlurEvent(cm)
|
||||
setTimeout(() => display.input.focus(), 20)
|
||||
}
|
||||
|
||||
function rangeForUnit(cm, pos, unit) {
|
||||
if (unit == "char") return new Range(pos, pos)
|
||||
if (unit == "word") return cm.findWordAt(pos)
|
||||
if (unit == "line") return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)))
|
||||
let result = unit(cm, pos)
|
||||
return new Range(result.from, result.to)
|
||||
}
|
||||
|
||||
// Normal selection, as opposed to text dragging.
|
||||
function leftButtonSelect(cm, event, start, behavior) {
|
||||
let display = cm.display, doc = cm.doc
|
||||
e_preventDefault(event)
|
||||
|
||||
let ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges
|
||||
if (behavior.addNew && !behavior.extend) {
|
||||
ourIndex = doc.sel.contains(start)
|
||||
if (ourIndex > -1)
|
||||
ourRange = ranges[ourIndex]
|
||||
else
|
||||
ourRange = new Range(start, start)
|
||||
} else {
|
||||
ourRange = doc.sel.primary()
|
||||
ourIndex = doc.sel.primIndex
|
||||
}
|
||||
|
||||
if (behavior.unit == "rectangle") {
|
||||
if (!behavior.addNew) ourRange = new Range(start, start)
|
||||
start = posFromMouse(cm, event, true, true)
|
||||
ourIndex = -1
|
||||
} else {
|
||||
let range = rangeForUnit(cm, start, behavior.unit)
|
||||
if (behavior.extend)
|
||||
ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend)
|
||||
else
|
||||
ourRange = range
|
||||
}
|
||||
|
||||
if (!behavior.addNew) {
|
||||
ourIndex = 0
|
||||
setSelection(doc, new Selection([ourRange], 0), sel_mouse)
|
||||
startSel = doc.sel
|
||||
} else if (ourIndex == -1) {
|
||||
ourIndex = ranges.length
|
||||
setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
|
||||
{scroll: false, origin: "*mouse"})
|
||||
} else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
|
||||
setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
|
||||
{scroll: false, origin: "*mouse"})
|
||||
startSel = doc.sel
|
||||
} else {
|
||||
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)
|
||||
}
|
||||
|
||||
let lastPos = start
|
||||
function extendTo(pos) {
|
||||
if (cmp(lastPos, pos) == 0) return
|
||||
lastPos = pos
|
||||
|
||||
if (behavior.unit == "rectangle") {
|
||||
let ranges = [], tabSize = cm.options.tabSize
|
||||
let startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
|
||||
let posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
|
||||
let left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)
|
||||
for (let line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
|
||||
line <= end; line++) {
|
||||
let text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)
|
||||
if (left == right)
|
||||
ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)))
|
||||
else if (text.length > leftPos)
|
||||
ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))))
|
||||
}
|
||||
if (!ranges.length) ranges.push(new Range(start, start))
|
||||
setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
|
||||
{origin: "*mouse", scroll: false})
|
||||
cm.scrollIntoView(pos)
|
||||
} else {
|
||||
let oldRange = ourRange
|
||||
let range = rangeForUnit(cm, pos, behavior.unit)
|
||||
let anchor = oldRange.anchor, head
|
||||
if (cmp(range.anchor, anchor) > 0) {
|
||||
head = range.head
|
||||
anchor = minPos(oldRange.from(), range.anchor)
|
||||
} else {
|
||||
head = range.anchor
|
||||
anchor = maxPos(oldRange.to(), range.head)
|
||||
}
|
||||
let ranges = startSel.ranges.slice(0)
|
||||
ranges[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head))
|
||||
setSelection(doc, normalizeSelection(cm, ranges, ourIndex), sel_mouse)
|
||||
}
|
||||
}
|
||||
|
||||
let editorSize = display.wrapper.getBoundingClientRect()
|
||||
// Used to ensure timeout re-tries don't fire when another extend
|
||||
// happened in the meantime (clearTimeout isn't reliable -- at
|
||||
// least on Chrome, the timeouts still happen even when cleared,
|
||||
// if the clear happens after their scheduled firing time).
|
||||
let counter = 0
|
||||
|
||||
function extend(e) {
|
||||
let curCount = ++counter
|
||||
let cur = posFromMouse(cm, e, true, behavior.unit == "rectangle")
|
||||
if (!cur) return
|
||||
if (cmp(cur, lastPos) != 0) {
|
||||
cm.curOp.focus = activeElt()
|
||||
extendTo(cur)
|
||||
let visible = visibleLines(display, doc)
|
||||
if (cur.line >= visible.to || cur.line < visible.from)
|
||||
setTimeout(operation(cm, () => {if (counter == curCount) extend(e)}), 150)
|
||||
} else {
|
||||
let outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0
|
||||
if (outside) setTimeout(operation(cm, () => {
|
||||
if (counter != curCount) return
|
||||
display.scroller.scrollTop += outside
|
||||
extend(e)
|
||||
}), 50)
|
||||
}
|
||||
}
|
||||
|
||||
function done(e) {
|
||||
cm.state.selectingText = false
|
||||
counter = Infinity
|
||||
// If e is null or undefined we interpret this as someone trying
|
||||
// to explicitly cancel the selection rather than the user
|
||||
// letting go of the mouse button.
|
||||
if (e) {
|
||||
e_preventDefault(e)
|
||||
display.input.focus()
|
||||
}
|
||||
off(display.wrapper.ownerDocument, "mousemove", move)
|
||||
off(display.wrapper.ownerDocument, "mouseup", up)
|
||||
doc.history.lastSelOrigin = null
|
||||
}
|
||||
|
||||
let move = operation(cm, e => {
|
||||
if (e.buttons === 0 || !e_button(e)) done(e)
|
||||
else extend(e)
|
||||
})
|
||||
let up = operation(cm, done)
|
||||
cm.state.selectingText = up
|
||||
on(display.wrapper.ownerDocument, "mousemove", move)
|
||||
on(display.wrapper.ownerDocument, "mouseup", up)
|
||||
}
|
||||
|
||||
// Used when mouse-selecting to adjust the anchor to the proper side
|
||||
// of a bidi jump depending on the visual position of the head.
|
||||
function bidiSimplify(cm, range) {
|
||||
let {anchor, head} = range, anchorLine = getLine(cm.doc, anchor.line)
|
||||
if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) return range
|
||||
let order = getOrder(anchorLine)
|
||||
if (!order) return range
|
||||
let index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]
|
||||
if (part.from != anchor.ch && part.to != anchor.ch) return range
|
||||
let boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1)
|
||||
if (boundary == 0 || boundary == order.length) return range
|
||||
|
||||
// Compute the relative visual position of the head compared to the
|
||||
// anchor (<0 is to the left, >0 to the right)
|
||||
let leftSide
|
||||
if (head.line != anchor.line) {
|
||||
leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0
|
||||
} else {
|
||||
let headIndex = getBidiPartAt(order, head.ch, head.sticky)
|
||||
let dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1)
|
||||
if (headIndex == boundary - 1 || headIndex == boundary)
|
||||
leftSide = dir < 0
|
||||
else
|
||||
leftSide = dir > 0
|
||||
}
|
||||
|
||||
let usePart = order[boundary + (leftSide ? -1 : 0)]
|
||||
let from = leftSide == (usePart.level == 1)
|
||||
let ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"
|
||||
return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
|
||||
}
|
||||
|
||||
|
||||
// Determines whether an event happened in the gutter, and fires the
|
||||
// handlers for the corresponding event.
|
||||
function gutterEvent(cm, e, type, prevent) {
|
||||
let mX, mY
|
||||
if (e.touches) {
|
||||
mX = e.touches[0].clientX
|
||||
mY = e.touches[0].clientY
|
||||
} else {
|
||||
try { mX = e.clientX; mY = e.clientY }
|
||||
catch(e) { return false }
|
||||
}
|
||||
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false
|
||||
if (prevent) e_preventDefault(e)
|
||||
|
||||
let display = cm.display
|
||||
let lineBox = display.lineDiv.getBoundingClientRect()
|
||||
|
||||
if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e)
|
||||
mY -= lineBox.top - display.viewOffset
|
||||
|
||||
for (let i = 0; i < cm.display.gutterSpecs.length; ++i) {
|
||||
let g = display.gutters.childNodes[i]
|
||||
if (g && g.getBoundingClientRect().right >= mX) {
|
||||
let line = lineAtHeight(cm.doc, mY)
|
||||
let gutter = cm.display.gutterSpecs[i]
|
||||
signal(cm, type, cm, line, gutter.className, e)
|
||||
return e_defaultPrevented(e)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export function clickInGutter(cm, e) {
|
||||
return gutterEvent(cm, e, "gutterClick", true)
|
||||
}
|
||||
|
||||
// CONTEXT MENU HANDLING
|
||||
|
||||
// To make the context menu work, we need to briefly unhide the
|
||||
// textarea (making it as unobtrusive as possible) to let the
|
||||
// right-click take effect on it.
|
||||
export function onContextMenu(cm, e) {
|
||||
if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return
|
||||
if (signalDOMEvent(cm, e, "contextmenu")) return
|
||||
if (!captureRightClick) cm.display.input.onContextMenu(e)
|
||||
}
|
||||
|
||||
function contextMenuInGutter(cm, e) {
|
||||
if (!hasHandler(cm, "gutterContextMenu")) return false
|
||||
return gutterEvent(cm, e, "gutterContextMenu", false)
|
||||
}
|
||||
|
|
@ -0,0 +1,194 @@
|
|||
import { onBlur } from "../display/focus.js"
|
||||
import { getGutters, updateGutters } from "../display/gutters.js"
|
||||
import { loadMode, resetModeState } from "../display/mode_state.js"
|
||||
import { initScrollbars, updateScrollbars } from "../display/scrollbars.js"
|
||||
import { updateSelection } from "../display/selection.js"
|
||||
import { regChange } from "../display/view_tracking.js"
|
||||
import { getKeyMap } from "../input/keymap.js"
|
||||
import { defaultSpecialCharPlaceholder } from "../line/line_data.js"
|
||||
import { Pos } from "../line/pos.js"
|
||||
import { findMaxLine } from "../line/spans.js"
|
||||
import { clearCaches, compensateForHScroll, estimateLineHeights } from "../measurement/position_measurement.js"
|
||||
import { replaceRange } from "../model/changes.js"
|
||||
import { mobile, windows } from "../util/browser.js"
|
||||
import { addClass, rmClass } from "../util/dom.js"
|
||||
import { off, on } from "../util/event.js"
|
||||
|
||||
import { themeChanged } from "./utils.js"
|
||||
|
||||
export let Init = {toString: function(){return "CodeMirror.Init"}}
|
||||
|
||||
export let defaults = {}
|
||||
export let optionHandlers = {}
|
||||
|
||||
export function defineOptions(CodeMirror) {
|
||||
let optionHandlers = CodeMirror.optionHandlers
|
||||
|
||||
function option(name, deflt, handle, notOnInit) {
|
||||
CodeMirror.defaults[name] = deflt
|
||||
if (handle) optionHandlers[name] =
|
||||
notOnInit ? (cm, val, old) => {if (old != Init) handle(cm, val, old)} : handle
|
||||
}
|
||||
|
||||
CodeMirror.defineOption = option
|
||||
|
||||
// Passed to option handlers when there is no old value.
|
||||
CodeMirror.Init = Init
|
||||
|
||||
// These two are, on init, called from the constructor because they
|
||||
// have to be initialized before the editor can start at all.
|
||||
option("value", "", (cm, val) => cm.setValue(val), true)
|
||||
option("mode", null, (cm, val) => {
|
||||
cm.doc.modeOption = val
|
||||
loadMode(cm)
|
||||
}, true)
|
||||
|
||||
option("indentUnit", 2, loadMode, true)
|
||||
option("indentWithTabs", false)
|
||||
option("smartIndent", true)
|
||||
option("tabSize", 4, cm => {
|
||||
resetModeState(cm)
|
||||
clearCaches(cm)
|
||||
regChange(cm)
|
||||
}, true)
|
||||
|
||||
option("lineSeparator", null, (cm, val) => {
|
||||
cm.doc.lineSep = val
|
||||
if (!val) return
|
||||
let newBreaks = [], lineNo = cm.doc.first
|
||||
cm.doc.iter(line => {
|
||||
for (let pos = 0;;) {
|
||||
let found = line.text.indexOf(val, pos)
|
||||
if (found == -1) break
|
||||
pos = found + val.length
|
||||
newBreaks.push(Pos(lineNo, found))
|
||||
}
|
||||
lineNo++
|
||||
})
|
||||
for (let i = newBreaks.length - 1; i >= 0; i--)
|
||||
replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
|
||||
})
|
||||
option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200c\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, (cm, val, old) => {
|
||||
cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g")
|
||||
if (old != Init) cm.refresh()
|
||||
})
|
||||
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, cm => cm.refresh(), true)
|
||||
option("electricChars", true)
|
||||
option("inputStyle", mobile ? "contenteditable" : "textarea", () => {
|
||||
throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
|
||||
}, true)
|
||||
option("spellcheck", false, (cm, val) => cm.getInputField().spellcheck = val, true)
|
||||
option("autocorrect", false, (cm, val) => cm.getInputField().autocorrect = val, true)
|
||||
option("autocapitalize", false, (cm, val) => cm.getInputField().autocapitalize = val, true)
|
||||
option("rtlMoveVisually", !windows)
|
||||
option("wholeLineUpdateBefore", true)
|
||||
|
||||
option("theme", "default", cm => {
|
||||
themeChanged(cm)
|
||||
updateGutters(cm)
|
||||
}, true)
|
||||
option("keyMap", "default", (cm, val, old) => {
|
||||
let next = getKeyMap(val)
|
||||
let prev = old != Init && getKeyMap(old)
|
||||
if (prev && prev.detach) prev.detach(cm, next)
|
||||
if (next.attach) next.attach(cm, prev || null)
|
||||
})
|
||||
option("extraKeys", null)
|
||||
option("configureMouse", null)
|
||||
|
||||
option("lineWrapping", false, wrappingChanged, true)
|
||||
option("gutters", [], (cm, val) => {
|
||||
cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers)
|
||||
updateGutters(cm)
|
||||
}, true)
|
||||
option("fixedGutter", true, (cm, val) => {
|
||||
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"
|
||||
cm.refresh()
|
||||
}, true)
|
||||
option("coverGutterNextToScrollbar", false, cm => updateScrollbars(cm), true)
|
||||
option("scrollbarStyle", "native", cm => {
|
||||
initScrollbars(cm)
|
||||
updateScrollbars(cm)
|
||||
cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)
|
||||
cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)
|
||||
}, true)
|
||||
option("lineNumbers", false, (cm, val) => {
|
||||
cm.display.gutterSpecs = getGutters(cm.options.gutters, val)
|
||||
updateGutters(cm)
|
||||
}, true)
|
||||
option("firstLineNumber", 1, updateGutters, true)
|
||||
option("lineNumberFormatter", integer => integer, updateGutters, true)
|
||||
option("showCursorWhenSelecting", false, updateSelection, true)
|
||||
|
||||
option("resetSelectionOnContextMenu", true)
|
||||
option("lineWiseCopyCut", true)
|
||||
option("pasteLinesPerSelection", true)
|
||||
option("selectionsMayTouch", false)
|
||||
|
||||
option("readOnly", false, (cm, val) => {
|
||||
if (val == "nocursor") {
|
||||
onBlur(cm)
|
||||
cm.display.input.blur()
|
||||
}
|
||||
cm.display.input.readOnlyChanged(val)
|
||||
})
|
||||
|
||||
option("screenReaderLabel", null, (cm, val) => {
|
||||
val = (val === '') ? null : val
|
||||
cm.display.input.screenReaderLabelChanged(val)
|
||||
})
|
||||
|
||||
option("disableInput", false, (cm, val) => {if (!val) cm.display.input.reset()}, true)
|
||||
option("dragDrop", true, dragDropChanged)
|
||||
option("allowDropFileTypes", null)
|
||||
|
||||
option("cursorBlinkRate", 530)
|
||||
option("cursorScrollMargin", 0)
|
||||
option("cursorHeight", 1, updateSelection, true)
|
||||
option("singleCursorHeightPerLine", true, updateSelection, true)
|
||||
option("workTime", 100)
|
||||
option("workDelay", 100)
|
||||
option("flattenSpans", true, resetModeState, true)
|
||||
option("addModeClass", false, resetModeState, true)
|
||||
option("pollInterval", 100)
|
||||
option("undoDepth", 200, (cm, val) => cm.doc.history.undoDepth = val)
|
||||
option("historyEventDelay", 1250)
|
||||
option("viewportMargin", 10, cm => cm.refresh(), true)
|
||||
option("maxHighlightLength", 10000, resetModeState, true)
|
||||
option("moveInputWithCursor", true, (cm, val) => {
|
||||
if (!val) cm.display.input.resetPosition()
|
||||
})
|
||||
|
||||
option("tabindex", null, (cm, val) => cm.display.input.getField().tabIndex = val || "")
|
||||
option("autofocus", null)
|
||||
option("direction", "ltr", (cm, val) => cm.doc.setDirection(val), true)
|
||||
option("phrases", null)
|
||||
}
|
||||
|
||||
function dragDropChanged(cm, value, old) {
|
||||
let wasOn = old && old != Init
|
||||
if (!value != !wasOn) {
|
||||
let funcs = cm.display.dragFunctions
|
||||
let toggle = value ? on : off
|
||||
toggle(cm.display.scroller, "dragstart", funcs.start)
|
||||
toggle(cm.display.scroller, "dragenter", funcs.enter)
|
||||
toggle(cm.display.scroller, "dragover", funcs.over)
|
||||
toggle(cm.display.scroller, "dragleave", funcs.leave)
|
||||
toggle(cm.display.scroller, "drop", funcs.drop)
|
||||
}
|
||||
}
|
||||
|
||||
function wrappingChanged(cm) {
|
||||
if (cm.options.lineWrapping) {
|
||||
addClass(cm.display.wrapper, "CodeMirror-wrap")
|
||||
cm.display.sizer.style.minWidth = ""
|
||||
cm.display.sizerWidth = null
|
||||
} else {
|
||||
rmClass(cm.display.wrapper, "CodeMirror-wrap")
|
||||
findMaxLine(cm)
|
||||
}
|
||||
estimateLineHeights(cm)
|
||||
regChange(cm)
|
||||
clearCaches(cm)
|
||||
setTimeout(() => updateScrollbars(cm), 100)
|
||||
}
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
import { clearCaches } from "../measurement/position_measurement.js"
|
||||
|
||||
export function themeChanged(cm) {
|
||||
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
|
||||
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-")
|
||||
clearCaches(cm)
|
||||
}
|
||||
|
|
@ -0,0 +1,544 @@
|
|||
import { operation, runInOp } from "../display/operations.js"
|
||||
import { prepareSelection } from "../display/selection.js"
|
||||
import { regChange } from "../display/view_tracking.js"
|
||||
import { applyTextInput, copyableRanges, disableBrowserMagic, handlePaste, hiddenTextarea, lastCopied, setLastCopied } from "./input.js"
|
||||
import { cmp, maxPos, minPos, Pos } from "../line/pos.js"
|
||||
import { getBetween, getLine, lineNo } from "../line/utils_line.js"
|
||||
import { findViewForLine, findViewIndex, mapFromLineView, nodeAndOffsetInLineMap } from "../measurement/position_measurement.js"
|
||||
import { replaceRange } from "../model/changes.js"
|
||||
import { simpleSelection } from "../model/selection.js"
|
||||
import { setSelection } from "../model/selection_updates.js"
|
||||
import { getBidiPartAt, getOrder } from "../util/bidi.js"
|
||||
import { android, chrome, gecko, ie_version } from "../util/browser.js"
|
||||
import { contains, range, removeChildrenAndAdd, selectInput } from "../util/dom.js"
|
||||
import { on, signalDOMEvent } from "../util/event.js"
|
||||
import { Delayed, lst, sel_dontScroll } from "../util/misc.js"
|
||||
|
||||
// CONTENTEDITABLE INPUT STYLE
|
||||
|
||||
export default class ContentEditableInput {
|
||||
constructor(cm) {
|
||||
this.cm = cm
|
||||
this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null
|
||||
this.polling = new Delayed()
|
||||
this.composing = null
|
||||
this.gracePeriod = false
|
||||
this.readDOMTimeout = null
|
||||
}
|
||||
|
||||
init(display) {
|
||||
let input = this, cm = input.cm
|
||||
let div = input.div = display.lineDiv
|
||||
disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize)
|
||||
|
||||
function belongsToInput(e) {
|
||||
for (let t = e.target; t; t = t.parentNode) {
|
||||
if (t == div) return true
|
||||
if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) break
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
on(div, "paste", e => {
|
||||
if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) return
|
||||
// IE doesn't fire input events, so we schedule a read for the pasted content in this way
|
||||
if (ie_version <= 11) setTimeout(operation(cm, () => this.updateFromDOM()), 20)
|
||||
})
|
||||
|
||||
on(div, "compositionstart", e => {
|
||||
this.composing = {data: e.data, done: false}
|
||||
})
|
||||
on(div, "compositionupdate", e => {
|
||||
if (!this.composing) this.composing = {data: e.data, done: false}
|
||||
})
|
||||
on(div, "compositionend", e => {
|
||||
if (this.composing) {
|
||||
if (e.data != this.composing.data) this.readFromDOMSoon()
|
||||
this.composing.done = true
|
||||
}
|
||||
})
|
||||
|
||||
on(div, "touchstart", () => input.forceCompositionEnd())
|
||||
|
||||
on(div, "input", () => {
|
||||
if (!this.composing) this.readFromDOMSoon()
|
||||
})
|
||||
|
||||
function onCopyCut(e) {
|
||||
if (!belongsToInput(e) || signalDOMEvent(cm, e)) return
|
||||
if (cm.somethingSelected()) {
|
||||
setLastCopied({lineWise: false, text: cm.getSelections()})
|
||||
if (e.type == "cut") cm.replaceSelection("", null, "cut")
|
||||
} else if (!cm.options.lineWiseCopyCut) {
|
||||
return
|
||||
} else {
|
||||
let ranges = copyableRanges(cm)
|
||||
setLastCopied({lineWise: true, text: ranges.text})
|
||||
if (e.type == "cut") {
|
||||
cm.operation(() => {
|
||||
cm.setSelections(ranges.ranges, 0, sel_dontScroll)
|
||||
cm.replaceSelection("", null, "cut")
|
||||
})
|
||||
}
|
||||
}
|
||||
if (e.clipboardData) {
|
||||
e.clipboardData.clearData()
|
||||
let content = lastCopied.text.join("\n")
|
||||
// iOS exposes the clipboard API, but seems to discard content inserted into it
|
||||
e.clipboardData.setData("Text", content)
|
||||
if (e.clipboardData.getData("Text") == content) {
|
||||
e.preventDefault()
|
||||
return
|
||||
}
|
||||
}
|
||||
// Old-fashioned briefly-focus-a-textarea hack
|
||||
let kludge = hiddenTextarea(), te = kludge.firstChild
|
||||
cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)
|
||||
te.value = lastCopied.text.join("\n")
|
||||
let hadFocus = document.activeElement
|
||||
selectInput(te)
|
||||
setTimeout(() => {
|
||||
cm.display.lineSpace.removeChild(kludge)
|
||||
hadFocus.focus()
|
||||
if (hadFocus == div) input.showPrimarySelection()
|
||||
}, 50)
|
||||
}
|
||||
on(div, "copy", onCopyCut)
|
||||
on(div, "cut", onCopyCut)
|
||||
}
|
||||
|
||||
screenReaderLabelChanged(label) {
|
||||
// Label for screenreaders, accessibility
|
||||
if(label) {
|
||||
this.div.setAttribute('aria-label', label)
|
||||
} else {
|
||||
this.div.removeAttribute('aria-label')
|
||||
}
|
||||
}
|
||||
|
||||
prepareSelection() {
|
||||
let result = prepareSelection(this.cm, false)
|
||||
result.focus = document.activeElement == this.div
|
||||
return result
|
||||
}
|
||||
|
||||
showSelection(info, takeFocus) {
|
||||
if (!info || !this.cm.display.view.length) return
|
||||
if (info.focus || takeFocus) this.showPrimarySelection()
|
||||
this.showMultipleSelections(info)
|
||||
}
|
||||
|
||||
getSelection() {
|
||||
return this.cm.display.wrapper.ownerDocument.getSelection()
|
||||
}
|
||||
|
||||
showPrimarySelection() {
|
||||
let sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary()
|
||||
let from = prim.from(), to = prim.to()
|
||||
|
||||
if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
|
||||
sel.removeAllRanges()
|
||||
return
|
||||
}
|
||||
|
||||
let curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
|
||||
let curFocus = domToPos(cm, sel.focusNode, sel.focusOffset)
|
||||
if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
|
||||
cmp(minPos(curAnchor, curFocus), from) == 0 &&
|
||||
cmp(maxPos(curAnchor, curFocus), to) == 0)
|
||||
return
|
||||
|
||||
let view = cm.display.view
|
||||
let start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
|
||||
{node: view[0].measure.map[2], offset: 0}
|
||||
let end = to.line < cm.display.viewTo && posToDOM(cm, to)
|
||||
if (!end) {
|
||||
let measure = view[view.length - 1].measure
|
||||
let map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map
|
||||
end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}
|
||||
}
|
||||
|
||||
if (!start || !end) {
|
||||
sel.removeAllRanges()
|
||||
return
|
||||
}
|
||||
|
||||
let old = sel.rangeCount && sel.getRangeAt(0), rng
|
||||
try { rng = range(start.node, start.offset, end.offset, end.node) }
|
||||
catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
|
||||
if (rng) {
|
||||
if (!gecko && cm.state.focused) {
|
||||
sel.collapse(start.node, start.offset)
|
||||
if (!rng.collapsed) {
|
||||
sel.removeAllRanges()
|
||||
sel.addRange(rng)
|
||||
}
|
||||
} else {
|
||||
sel.removeAllRanges()
|
||||
sel.addRange(rng)
|
||||
}
|
||||
if (old && sel.anchorNode == null) sel.addRange(old)
|
||||
else if (gecko) this.startGracePeriod()
|
||||
}
|
||||
this.rememberSelection()
|
||||
}
|
||||
|
||||
startGracePeriod() {
|
||||
clearTimeout(this.gracePeriod)
|
||||
this.gracePeriod = setTimeout(() => {
|
||||
this.gracePeriod = false
|
||||
if (this.selectionChanged())
|
||||
this.cm.operation(() => this.cm.curOp.selectionChanged = true)
|
||||
}, 20)
|
||||
}
|
||||
|
||||
showMultipleSelections(info) {
|
||||
removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)
|
||||
removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)
|
||||
}
|
||||
|
||||
rememberSelection() {
|
||||
let sel = this.getSelection()
|
||||
this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset
|
||||
this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset
|
||||
}
|
||||
|
||||
selectionInEditor() {
|
||||
let sel = this.getSelection()
|
||||
if (!sel.rangeCount) return false
|
||||
let node = sel.getRangeAt(0).commonAncestorContainer
|
||||
return contains(this.div, node)
|
||||
}
|
||||
|
||||
focus() {
|
||||
if (this.cm.options.readOnly != "nocursor") {
|
||||
if (!this.selectionInEditor() || document.activeElement != this.div)
|
||||
this.showSelection(this.prepareSelection(), true)
|
||||
this.div.focus()
|
||||
}
|
||||
}
|
||||
blur() { this.div.blur() }
|
||||
getField() { return this.div }
|
||||
|
||||
supportsTouch() { return true }
|
||||
|
||||
receivedFocus() {
|
||||
let input = this
|
||||
if (this.selectionInEditor())
|
||||
this.pollSelection()
|
||||
else
|
||||
runInOp(this.cm, () => input.cm.curOp.selectionChanged = true)
|
||||
|
||||
function poll() {
|
||||
if (input.cm.state.focused) {
|
||||
input.pollSelection()
|
||||
input.polling.set(input.cm.options.pollInterval, poll)
|
||||
}
|
||||
}
|
||||
this.polling.set(this.cm.options.pollInterval, poll)
|
||||
}
|
||||
|
||||
selectionChanged() {
|
||||
let sel = this.getSelection()
|
||||
return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
|
||||
sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
|
||||
}
|
||||
|
||||
pollSelection() {
|
||||
if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) return
|
||||
let sel = this.getSelection(), cm = this.cm
|
||||
// On Android Chrome (version 56, at least), backspacing into an
|
||||
// uneditable block element will put the cursor in that element,
|
||||
// and then, because it's not editable, hide the virtual keyboard.
|
||||
// Because Android doesn't allow us to actually detect backspace
|
||||
// presses in a sane way, this code checks for when that happens
|
||||
// and simulates a backspace press in this case.
|
||||
if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
|
||||
this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs})
|
||||
this.blur()
|
||||
this.focus()
|
||||
return
|
||||
}
|
||||
if (this.composing) return
|
||||
this.rememberSelection()
|
||||
let anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
|
||||
let head = domToPos(cm, sel.focusNode, sel.focusOffset)
|
||||
if (anchor && head) runInOp(cm, () => {
|
||||
setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)
|
||||
if (anchor.bad || head.bad) cm.curOp.selectionChanged = true
|
||||
})
|
||||
}
|
||||
|
||||
pollContent() {
|
||||
if (this.readDOMTimeout != null) {
|
||||
clearTimeout(this.readDOMTimeout)
|
||||
this.readDOMTimeout = null
|
||||
}
|
||||
|
||||
let cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()
|
||||
let from = sel.from(), to = sel.to()
|
||||
if (from.ch == 0 && from.line > cm.firstLine())
|
||||
from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length)
|
||||
if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
|
||||
to = Pos(to.line + 1, 0)
|
||||
if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false
|
||||
|
||||
let fromIndex, fromLine, fromNode
|
||||
if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
|
||||
fromLine = lineNo(display.view[0].line)
|
||||
fromNode = display.view[0].node
|
||||
} else {
|
||||
fromLine = lineNo(display.view[fromIndex].line)
|
||||
fromNode = display.view[fromIndex - 1].node.nextSibling
|
||||
}
|
||||
let toIndex = findViewIndex(cm, to.line)
|
||||
let toLine, toNode
|
||||
if (toIndex == display.view.length - 1) {
|
||||
toLine = display.viewTo - 1
|
||||
toNode = display.lineDiv.lastChild
|
||||
} else {
|
||||
toLine = lineNo(display.view[toIndex + 1].line) - 1
|
||||
toNode = display.view[toIndex + 1].node.previousSibling
|
||||
}
|
||||
|
||||
if (!fromNode) return false
|
||||
let newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))
|
||||
let oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))
|
||||
while (newText.length > 1 && oldText.length > 1) {
|
||||
if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }
|
||||
else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }
|
||||
else break
|
||||
}
|
||||
|
||||
let cutFront = 0, cutEnd = 0
|
||||
let newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)
|
||||
while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
|
||||
++cutFront
|
||||
let newBot = lst(newText), oldBot = lst(oldText)
|
||||
let maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
|
||||
oldBot.length - (oldText.length == 1 ? cutFront : 0))
|
||||
while (cutEnd < maxCutEnd &&
|
||||
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
|
||||
++cutEnd
|
||||
// Try to move start of change to start of selection if ambiguous
|
||||
if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
|
||||
while (cutFront && cutFront > from.ch &&
|
||||
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
|
||||
cutFront--
|
||||
cutEnd++
|
||||
}
|
||||
}
|
||||
|
||||
newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "")
|
||||
newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "")
|
||||
|
||||
let chFrom = Pos(fromLine, cutFront)
|
||||
let chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)
|
||||
if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
|
||||
replaceRange(cm.doc, newText, chFrom, chTo, "+input")
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
ensurePolled() {
|
||||
this.forceCompositionEnd()
|
||||
}
|
||||
reset() {
|
||||
this.forceCompositionEnd()
|
||||
}
|
||||
forceCompositionEnd() {
|
||||
if (!this.composing) return
|
||||
clearTimeout(this.readDOMTimeout)
|
||||
this.composing = null
|
||||
this.updateFromDOM()
|
||||
this.div.blur()
|
||||
this.div.focus()
|
||||
}
|
||||
readFromDOMSoon() {
|
||||
if (this.readDOMTimeout != null) return
|
||||
this.readDOMTimeout = setTimeout(() => {
|
||||
this.readDOMTimeout = null
|
||||
if (this.composing) {
|
||||
if (this.composing.done) this.composing = null
|
||||
else return
|
||||
}
|
||||
this.updateFromDOM()
|
||||
}, 80)
|
||||
}
|
||||
|
||||
updateFromDOM() {
|
||||
if (this.cm.isReadOnly() || !this.pollContent())
|
||||
runInOp(this.cm, () => regChange(this.cm))
|
||||
}
|
||||
|
||||
setUneditable(node) {
|
||||
node.contentEditable = "false"
|
||||
}
|
||||
|
||||
onKeyPress(e) {
|
||||
if (e.charCode == 0 || this.composing) return
|
||||
e.preventDefault()
|
||||
if (!this.cm.isReadOnly())
|
||||
operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0)
|
||||
}
|
||||
|
||||
readOnlyChanged(val) {
|
||||
this.div.contentEditable = String(val != "nocursor")
|
||||
}
|
||||
|
||||
onContextMenu() {}
|
||||
resetPosition() {}
|
||||
}
|
||||
|
||||
ContentEditableInput.prototype.needsContentAttribute = true
|
||||
|
||||
function posToDOM(cm, pos) {
|
||||
let view = findViewForLine(cm, pos.line)
|
||||
if (!view || view.hidden) return null
|
||||
let line = getLine(cm.doc, pos.line)
|
||||
let info = mapFromLineView(view, line, pos.line)
|
||||
|
||||
let order = getOrder(line, cm.doc.direction), side = "left"
|
||||
if (order) {
|
||||
let partPos = getBidiPartAt(order, pos.ch)
|
||||
side = partPos % 2 ? "right" : "left"
|
||||
}
|
||||
let result = nodeAndOffsetInLineMap(info.map, pos.ch, side)
|
||||
result.offset = result.collapse == "right" ? result.end : result.start
|
||||
return result
|
||||
}
|
||||
|
||||
function isInGutter(node) {
|
||||
for (let scan = node; scan; scan = scan.parentNode)
|
||||
if (/CodeMirror-gutter-wrapper/.test(scan.className)) return true
|
||||
return false
|
||||
}
|
||||
|
||||
function badPos(pos, bad) { if (bad) pos.bad = true; return pos }
|
||||
|
||||
function domTextBetween(cm, from, to, fromLine, toLine) {
|
||||
let text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false
|
||||
function recognizeMarker(id) { return marker => marker.id == id }
|
||||
function close() {
|
||||
if (closing) {
|
||||
text += lineSep
|
||||
if (extraLinebreak) text += lineSep
|
||||
closing = extraLinebreak = false
|
||||
}
|
||||
}
|
||||
function addText(str) {
|
||||
if (str) {
|
||||
close()
|
||||
text += str
|
||||
}
|
||||
}
|
||||
function walk(node) {
|
||||
if (node.nodeType == 1) {
|
||||
let cmText = node.getAttribute("cm-text")
|
||||
if (cmText) {
|
||||
addText(cmText)
|
||||
return
|
||||
}
|
||||
let markerID = node.getAttribute("cm-marker"), range
|
||||
if (markerID) {
|
||||
let found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))
|
||||
if (found.length && (range = found[0].find(0)))
|
||||
addText(getBetween(cm.doc, range.from, range.to).join(lineSep))
|
||||
return
|
||||
}
|
||||
if (node.getAttribute("contenteditable") == "false") return
|
||||
let isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName)
|
||||
if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) return
|
||||
|
||||
if (isBlock) close()
|
||||
for (let i = 0; i < node.childNodes.length; i++)
|
||||
walk(node.childNodes[i])
|
||||
|
||||
if (/^(pre|p)$/i.test(node.nodeName)) extraLinebreak = true
|
||||
if (isBlock) closing = true
|
||||
} else if (node.nodeType == 3) {
|
||||
addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "))
|
||||
}
|
||||
}
|
||||
for (;;) {
|
||||
walk(from)
|
||||
if (from == to) break
|
||||
from = from.nextSibling
|
||||
extraLinebreak = false
|
||||
}
|
||||
return text
|
||||
}
|
||||
|
||||
function domToPos(cm, node, offset) {
|
||||
let lineNode
|
||||
if (node == cm.display.lineDiv) {
|
||||
lineNode = cm.display.lineDiv.childNodes[offset]
|
||||
if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true)
|
||||
node = null; offset = 0
|
||||
} else {
|
||||
for (lineNode = node;; lineNode = lineNode.parentNode) {
|
||||
if (!lineNode || lineNode == cm.display.lineDiv) return null
|
||||
if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break
|
||||
}
|
||||
}
|
||||
for (let i = 0; i < cm.display.view.length; i++) {
|
||||
let lineView = cm.display.view[i]
|
||||
if (lineView.node == lineNode)
|
||||
return locateNodeInLineView(lineView, node, offset)
|
||||
}
|
||||
}
|
||||
|
||||
function locateNodeInLineView(lineView, node, offset) {
|
||||
let wrapper = lineView.text.firstChild, bad = false
|
||||
if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true)
|
||||
if (node == wrapper) {
|
||||
bad = true
|
||||
node = wrapper.childNodes[offset]
|
||||
offset = 0
|
||||
if (!node) {
|
||||
let line = lineView.rest ? lst(lineView.rest) : lineView.line
|
||||
return badPos(Pos(lineNo(line), line.text.length), bad)
|
||||
}
|
||||
}
|
||||
|
||||
let textNode = node.nodeType == 3 ? node : null, topNode = node
|
||||
if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
|
||||
textNode = node.firstChild
|
||||
if (offset) offset = textNode.nodeValue.length
|
||||
}
|
||||
while (topNode.parentNode != wrapper) topNode = topNode.parentNode
|
||||
let measure = lineView.measure, maps = measure.maps
|
||||
|
||||
function find(textNode, topNode, offset) {
|
||||
for (let i = -1; i < (maps ? maps.length : 0); i++) {
|
||||
let map = i < 0 ? measure.map : maps[i]
|
||||
for (let j = 0; j < map.length; j += 3) {
|
||||
let curNode = map[j + 2]
|
||||
if (curNode == textNode || curNode == topNode) {
|
||||
let line = lineNo(i < 0 ? lineView.line : lineView.rest[i])
|
||||
let ch = map[j] + offset
|
||||
if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)]
|
||||
return Pos(line, ch)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
let found = find(textNode, topNode, offset)
|
||||
if (found) return badPos(found, bad)
|
||||
|
||||
// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
|
||||
for (let after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
|
||||
found = find(after, after.firstChild, 0)
|
||||
if (found)
|
||||
return badPos(Pos(found.line, found.ch - dist), bad)
|
||||
else
|
||||
dist += after.textContent.length
|
||||
}
|
||||
for (let before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
|
||||
found = find(before, before.firstChild, -1)
|
||||
if (found)
|
||||
return badPos(Pos(found.line, found.ch + dist), bad)
|
||||
else
|
||||
dist += before.textContent.length
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,374 @@
|
|||
import { operation, runInOp } from "../display/operations.js"
|
||||
import { prepareSelection } from "../display/selection.js"
|
||||
import { applyTextInput, copyableRanges, handlePaste, hiddenTextarea, setLastCopied } from "./input.js"
|
||||
import { cursorCoords, posFromMouse } from "../measurement/position_measurement.js"
|
||||
import { eventInWidget } from "../measurement/widgets.js"
|
||||
import { simpleSelection } from "../model/selection.js"
|
||||
import { selectAll, setSelection } from "../model/selection_updates.js"
|
||||
import { captureRightClick, ie, ie_version, ios, mac, mobile, presto, webkit } from "../util/browser.js"
|
||||
import { activeElt, removeChildrenAndAdd, selectInput } from "../util/dom.js"
|
||||
import { e_preventDefault, e_stop, off, on, signalDOMEvent } from "../util/event.js"
|
||||
import { hasSelection } from "../util/feature_detection.js"
|
||||
import { Delayed, sel_dontScroll } from "../util/misc.js"
|
||||
|
||||
// TEXTAREA INPUT STYLE
|
||||
|
||||
export default class TextareaInput {
|
||||
constructor(cm) {
|
||||
this.cm = cm
|
||||
// See input.poll and input.reset
|
||||
this.prevInput = ""
|
||||
|
||||
// Flag that indicates whether we expect input to appear real soon
|
||||
// now (after some event like 'keypress' or 'input') and are
|
||||
// polling intensively.
|
||||
this.pollingFast = false
|
||||
// Self-resetting timeout for the poller
|
||||
this.polling = new Delayed()
|
||||
// Used to work around IE issue with selection being forgotten when focus moves away from textarea
|
||||
this.hasSelection = false
|
||||
this.composing = null
|
||||
}
|
||||
|
||||
init(display) {
|
||||
let input = this, cm = this.cm
|
||||
this.createField(display)
|
||||
const te = this.textarea
|
||||
|
||||
display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild)
|
||||
|
||||
// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
|
||||
if (ios) te.style.width = "0px"
|
||||
|
||||
on(te, "input", () => {
|
||||
if (ie && ie_version >= 9 && this.hasSelection) this.hasSelection = null
|
||||
input.poll()
|
||||
})
|
||||
|
||||
on(te, "paste", e => {
|
||||
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
|
||||
|
||||
cm.state.pasteIncoming = +new Date
|
||||
input.fastPoll()
|
||||
})
|
||||
|
||||
function prepareCopyCut(e) {
|
||||
if (signalDOMEvent(cm, e)) return
|
||||
if (cm.somethingSelected()) {
|
||||
setLastCopied({lineWise: false, text: cm.getSelections()})
|
||||
} else if (!cm.options.lineWiseCopyCut) {
|
||||
return
|
||||
} else {
|
||||
let ranges = copyableRanges(cm)
|
||||
setLastCopied({lineWise: true, text: ranges.text})
|
||||
if (e.type == "cut") {
|
||||
cm.setSelections(ranges.ranges, null, sel_dontScroll)
|
||||
} else {
|
||||
input.prevInput = ""
|
||||
te.value = ranges.text.join("\n")
|
||||
selectInput(te)
|
||||
}
|
||||
}
|
||||
if (e.type == "cut") cm.state.cutIncoming = +new Date
|
||||
}
|
||||
on(te, "cut", prepareCopyCut)
|
||||
on(te, "copy", prepareCopyCut)
|
||||
|
||||
on(display.scroller, "paste", e => {
|
||||
if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return
|
||||
if (!te.dispatchEvent) {
|
||||
cm.state.pasteIncoming = +new Date
|
||||
input.focus()
|
||||
return
|
||||
}
|
||||
|
||||
// Pass the `paste` event to the textarea so it's handled by its event listener.
|
||||
const event = new Event("paste")
|
||||
event.clipboardData = e.clipboardData
|
||||
te.dispatchEvent(event)
|
||||
})
|
||||
|
||||
// Prevent normal selection in the editor (we handle our own)
|
||||
on(display.lineSpace, "selectstart", e => {
|
||||
if (!eventInWidget(display, e)) e_preventDefault(e)
|
||||
})
|
||||
|
||||
on(te, "compositionstart", () => {
|
||||
let start = cm.getCursor("from")
|
||||
if (input.composing) input.composing.range.clear()
|
||||
input.composing = {
|
||||
start: start,
|
||||
range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
|
||||
}
|
||||
})
|
||||
on(te, "compositionend", () => {
|
||||
if (input.composing) {
|
||||
input.poll()
|
||||
input.composing.range.clear()
|
||||
input.composing = null
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
createField(_display) {
|
||||
// Wraps and hides input textarea
|
||||
this.wrapper = hiddenTextarea()
|
||||
// The semihidden textarea that is focused when the editor is
|
||||
// focused, and receives input.
|
||||
this.textarea = this.wrapper.firstChild
|
||||
}
|
||||
|
||||
screenReaderLabelChanged(label) {
|
||||
// Label for screenreaders, accessibility
|
||||
if(label) {
|
||||
this.textarea.setAttribute('aria-label', label)
|
||||
} else {
|
||||
this.textarea.removeAttribute('aria-label')
|
||||
}
|
||||
}
|
||||
|
||||
prepareSelection() {
|
||||
// Redraw the selection and/or cursor
|
||||
let cm = this.cm, display = cm.display, doc = cm.doc
|
||||
let result = prepareSelection(cm)
|
||||
|
||||
// Move the hidden textarea near the cursor to prevent scrolling artifacts
|
||||
if (cm.options.moveInputWithCursor) {
|
||||
let headPos = cursorCoords(cm, doc.sel.primary().head, "div")
|
||||
let wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()
|
||||
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
|
||||
headPos.top + lineOff.top - wrapOff.top))
|
||||
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
|
||||
headPos.left + lineOff.left - wrapOff.left))
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
showSelection(drawn) {
|
||||
let cm = this.cm, display = cm.display
|
||||
removeChildrenAndAdd(display.cursorDiv, drawn.cursors)
|
||||
removeChildrenAndAdd(display.selectionDiv, drawn.selection)
|
||||
if (drawn.teTop != null) {
|
||||
this.wrapper.style.top = drawn.teTop + "px"
|
||||
this.wrapper.style.left = drawn.teLeft + "px"
|
||||
}
|
||||
}
|
||||
|
||||
// Reset the input to correspond to the selection (or to be empty,
|
||||
// when not typing and nothing is selected)
|
||||
reset(typing) {
|
||||
if (this.contextMenuPending || this.composing) return
|
||||
let cm = this.cm
|
||||
if (cm.somethingSelected()) {
|
||||
this.prevInput = ""
|
||||
let content = cm.getSelection()
|
||||
this.textarea.value = content
|
||||
if (cm.state.focused) selectInput(this.textarea)
|
||||
if (ie && ie_version >= 9) this.hasSelection = content
|
||||
} else if (!typing) {
|
||||
this.prevInput = this.textarea.value = ""
|
||||
if (ie && ie_version >= 9) this.hasSelection = null
|
||||
}
|
||||
}
|
||||
|
||||
getField() { return this.textarea }
|
||||
|
||||
supportsTouch() { return false }
|
||||
|
||||
focus() {
|
||||
if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
|
||||
try { this.textarea.focus() }
|
||||
catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
|
||||
}
|
||||
}
|
||||
|
||||
blur() { this.textarea.blur() }
|
||||
|
||||
resetPosition() {
|
||||
this.wrapper.style.top = this.wrapper.style.left = 0
|
||||
}
|
||||
|
||||
receivedFocus() { this.slowPoll() }
|
||||
|
||||
// Poll for input changes, using the normal rate of polling. This
|
||||
// runs as long as the editor is focused.
|
||||
slowPoll() {
|
||||
if (this.pollingFast) return
|
||||
this.polling.set(this.cm.options.pollInterval, () => {
|
||||
this.poll()
|
||||
if (this.cm.state.focused) this.slowPoll()
|
||||
})
|
||||
}
|
||||
|
||||
// When an event has just come in that is likely to add or change
|
||||
// something in the input textarea, we poll faster, to ensure that
|
||||
// the change appears on the screen quickly.
|
||||
fastPoll() {
|
||||
let missed = false, input = this
|
||||
input.pollingFast = true
|
||||
function p() {
|
||||
let changed = input.poll()
|
||||
if (!changed && !missed) {missed = true; input.polling.set(60, p)}
|
||||
else {input.pollingFast = false; input.slowPoll()}
|
||||
}
|
||||
input.polling.set(20, p)
|
||||
}
|
||||
|
||||
// Read input from the textarea, and update the document to match.
|
||||
// When something is selected, it is present in the textarea, and
|
||||
// selected (unless it is huge, in which case a placeholder is
|
||||
// used). When nothing is selected, the cursor sits after previously
|
||||
// seen text (can be empty), which is stored in prevInput (we must
|
||||
// not reset the textarea when typing, because that breaks IME).
|
||||
poll() {
|
||||
let cm = this.cm, input = this.textarea, prevInput = this.prevInput
|
||||
// Since this is called a *lot*, try to bail out as cheaply as
|
||||
// possible when it is clear that nothing happened. hasSelection
|
||||
// will be the case when there is a lot of text in the textarea,
|
||||
// in which case reading its value would be expensive.
|
||||
if (this.contextMenuPending || !cm.state.focused ||
|
||||
(hasSelection(input) && !prevInput && !this.composing) ||
|
||||
cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
|
||||
return false
|
||||
|
||||
let text = input.value
|
||||
// If nothing changed, bail.
|
||||
if (text == prevInput && !cm.somethingSelected()) return false
|
||||
// Work around nonsensical selection resetting in IE9/10, and
|
||||
// inexplicable appearance of private area unicode characters on
|
||||
// some key combos in Mac (#2689).
|
||||
if (ie && ie_version >= 9 && this.hasSelection === text ||
|
||||
mac && /[\uf700-\uf7ff]/.test(text)) {
|
||||
cm.display.input.reset()
|
||||
return false
|
||||
}
|
||||
|
||||
if (cm.doc.sel == cm.display.selForContextMenu) {
|
||||
let first = text.charCodeAt(0)
|
||||
if (first == 0x200b && !prevInput) prevInput = "\u200b"
|
||||
if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
|
||||
}
|
||||
// Find the part of the input that is actually new
|
||||
let same = 0, l = Math.min(prevInput.length, text.length)
|
||||
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same
|
||||
|
||||
runInOp(cm, () => {
|
||||
applyTextInput(cm, text.slice(same), prevInput.length - same,
|
||||
null, this.composing ? "*compose" : null)
|
||||
|
||||
// Don't leave long text in the textarea, since it makes further polling slow
|
||||
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = this.prevInput = ""
|
||||
else this.prevInput = text
|
||||
|
||||
if (this.composing) {
|
||||
this.composing.range.clear()
|
||||
this.composing.range = cm.markText(this.composing.start, cm.getCursor("to"),
|
||||
{className: "CodeMirror-composing"})
|
||||
}
|
||||
})
|
||||
return true
|
||||
}
|
||||
|
||||
ensurePolled() {
|
||||
if (this.pollingFast && this.poll()) this.pollingFast = false
|
||||
}
|
||||
|
||||
onKeyPress() {
|
||||
if (ie && ie_version >= 9) this.hasSelection = null
|
||||
this.fastPoll()
|
||||
}
|
||||
|
||||
onContextMenu(e) {
|
||||
let input = this, cm = input.cm, display = cm.display, te = input.textarea
|
||||
if (input.contextMenuPending) input.contextMenuPending()
|
||||
let pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop
|
||||
if (!pos || presto) return // Opera is difficult.
|
||||
|
||||
// Reset the current text selection only if the click is done outside of the selection
|
||||
// and 'resetSelectionOnContextMenu' option is true.
|
||||
let reset = cm.options.resetSelectionOnContextMenu
|
||||
if (reset && cm.doc.sel.contains(pos) == -1)
|
||||
operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll)
|
||||
|
||||
let oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText
|
||||
let wrapperBox = input.wrapper.offsetParent.getBoundingClientRect()
|
||||
input.wrapper.style.cssText = "position: static"
|
||||
te.style.cssText = `position: absolute; width: 30px; height: 30px;
|
||||
top: ${e.clientY - wrapperBox.top - 5}px; left: ${e.clientX - wrapperBox.left - 5}px;
|
||||
z-index: 1000; background: ${ie ? "rgba(255, 255, 255, .05)" : "transparent"};
|
||||
outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);`
|
||||
let oldScrollY
|
||||
if (webkit) oldScrollY = window.scrollY // Work around Chrome issue (#2712)
|
||||
display.input.focus()
|
||||
if (webkit) window.scrollTo(null, oldScrollY)
|
||||
display.input.reset()
|
||||
// Adds "Select all" to context menu in FF
|
||||
if (!cm.somethingSelected()) te.value = input.prevInput = " "
|
||||
input.contextMenuPending = rehide
|
||||
display.selForContextMenu = cm.doc.sel
|
||||
clearTimeout(display.detectingSelectAll)
|
||||
|
||||
// Select-all will be greyed out if there's nothing to select, so
|
||||
// this adds a zero-width space so that we can later check whether
|
||||
// it got selected.
|
||||
function prepareSelectAllHack() {
|
||||
if (te.selectionStart != null) {
|
||||
let selected = cm.somethingSelected()
|
||||
let extval = "\u200b" + (selected ? te.value : "")
|
||||
te.value = "\u21da" // Used to catch context-menu undo
|
||||
te.value = extval
|
||||
input.prevInput = selected ? "" : "\u200b"
|
||||
te.selectionStart = 1; te.selectionEnd = extval.length
|
||||
// Re-set this, in case some other handler touched the
|
||||
// selection in the meantime.
|
||||
display.selForContextMenu = cm.doc.sel
|
||||
}
|
||||
}
|
||||
function rehide() {
|
||||
if (input.contextMenuPending != rehide) return
|
||||
input.contextMenuPending = false
|
||||
input.wrapper.style.cssText = oldWrapperCSS
|
||||
te.style.cssText = oldCSS
|
||||
if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos)
|
||||
|
||||
// Try to detect the user choosing select-all
|
||||
if (te.selectionStart != null) {
|
||||
if (!ie || (ie && ie_version < 9)) prepareSelectAllHack()
|
||||
let i = 0, poll = () => {
|
||||
if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
|
||||
te.selectionEnd > 0 && input.prevInput == "\u200b") {
|
||||
operation(cm, selectAll)(cm)
|
||||
} else if (i++ < 10) {
|
||||
display.detectingSelectAll = setTimeout(poll, 500)
|
||||
} else {
|
||||
display.selForContextMenu = null
|
||||
display.input.reset()
|
||||
}
|
||||
}
|
||||
display.detectingSelectAll = setTimeout(poll, 200)
|
||||
}
|
||||
}
|
||||
|
||||
if (ie && ie_version >= 9) prepareSelectAllHack()
|
||||
if (captureRightClick) {
|
||||
e_stop(e)
|
||||
let mouseup = () => {
|
||||
off(window, "mouseup", mouseup)
|
||||
setTimeout(rehide, 20)
|
||||
}
|
||||
on(window, "mouseup", mouseup)
|
||||
} else {
|
||||
setTimeout(rehide, 50)
|
||||
}
|
||||
}
|
||||
|
||||
readOnlyChanged(val) {
|
||||
if (!val) this.reset()
|
||||
this.textarea.disabled = val == "nocursor"
|
||||
}
|
||||
|
||||
setUneditable() {}
|
||||
}
|
||||
|
||||
TextareaInput.prototype.needsContentAttribute = false
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
import { getContextBefore } from "../line/highlight.js"
|
||||
import { Pos } from "../line/pos.js"
|
||||
import { getLine } from "../line/utils_line.js"
|
||||
import { replaceRange } from "../model/changes.js"
|
||||
import { Range } from "../model/selection.js"
|
||||
import { replaceOneSelection } from "../model/selection_updates.js"
|
||||
import { countColumn, Pass, spaceStr } from "../util/misc.js"
|
||||
|
||||
// Indent the given line. The how parameter can be "smart",
|
||||
// "add"/null, "subtract", or "prev". When aggressive is false
|
||||
// (typically set to true for forced single-line indents), empty
|
||||
// lines are not indented, and places where the mode returns Pass
|
||||
// are left alone.
|
||||
export function indentLine(cm, n, how, aggressive) {
|
||||
let doc = cm.doc, state
|
||||
if (how == null) how = "add"
|
||||
if (how == "smart") {
|
||||
// Fall back to "prev" when the mode doesn't have an indentation
|
||||
// method.
|
||||
if (!doc.mode.indent) how = "prev"
|
||||
else state = getContextBefore(cm, n).state
|
||||
}
|
||||
|
||||
let tabSize = cm.options.tabSize
|
||||
let line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)
|
||||
if (line.stateAfter) line.stateAfter = null
|
||||
let curSpaceString = line.text.match(/^\s*/)[0], indentation
|
||||
if (!aggressive && !/\S/.test(line.text)) {
|
||||
indentation = 0
|
||||
how = "not"
|
||||
} else if (how == "smart") {
|
||||
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)
|
||||
if (indentation == Pass || indentation > 150) {
|
||||
if (!aggressive) return
|
||||
how = "prev"
|
||||
}
|
||||
}
|
||||
if (how == "prev") {
|
||||
if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize)
|
||||
else indentation = 0
|
||||
} else if (how == "add") {
|
||||
indentation = curSpace + cm.options.indentUnit
|
||||
} else if (how == "subtract") {
|
||||
indentation = curSpace - cm.options.indentUnit
|
||||
} else if (typeof how == "number") {
|
||||
indentation = curSpace + how
|
||||
}
|
||||
indentation = Math.max(0, indentation)
|
||||
|
||||
let indentString = "", pos = 0
|
||||
if (cm.options.indentWithTabs)
|
||||
for (let i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"}
|
||||
if (pos < indentation) indentString += spaceStr(indentation - pos)
|
||||
|
||||
if (indentString != curSpaceString) {
|
||||
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input")
|
||||
line.stateAfter = null
|
||||
return true
|
||||
} else {
|
||||
// Ensure that, if the cursor was in the whitespace at the start
|
||||
// of the line, it is moved to the end of that space.
|
||||
for (let i = 0; i < doc.sel.ranges.length; i++) {
|
||||
let range = doc.sel.ranges[i]
|
||||
if (range.head.line == n && range.head.ch < curSpaceString.length) {
|
||||
let pos = Pos(n, curSpaceString.length)
|
||||
replaceOneSelection(doc, i, new Range(pos, pos))
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,135 @@
|
|||
import { runInOp } from "../display/operations.js"
|
||||
import { ensureCursorVisible } from "../display/scrolling.js"
|
||||
import { Pos } from "../line/pos.js"
|
||||
import { getLine } from "../line/utils_line.js"
|
||||
import { makeChange } from "../model/changes.js"
|
||||
import { ios, webkit } from "../util/browser.js"
|
||||
import { elt } from "../util/dom.js"
|
||||
import { lst, map } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
import { splitLinesAuto } from "../util/feature_detection.js"
|
||||
|
||||
import { indentLine } from "./indent.js"
|
||||
|
||||
// This will be set to a {lineWise: bool, text: [string]} object, so
|
||||
// that, when pasting, we know what kind of selections the copied
|
||||
// text was made out of.
|
||||
export let lastCopied = null
|
||||
|
||||
export function setLastCopied(newLastCopied) {
|
||||
lastCopied = newLastCopied
|
||||
}
|
||||
|
||||
export function applyTextInput(cm, inserted, deleted, sel, origin) {
|
||||
let doc = cm.doc
|
||||
cm.display.shift = false
|
||||
if (!sel) sel = doc.sel
|
||||
|
||||
let recent = +new Date - 200
|
||||
let paste = origin == "paste" || cm.state.pasteIncoming > recent
|
||||
let textLines = splitLinesAuto(inserted), multiPaste = null
|
||||
// When pasting N lines into N selections, insert one line per selection
|
||||
if (paste && sel.ranges.length > 1) {
|
||||
if (lastCopied && lastCopied.text.join("\n") == inserted) {
|
||||
if (sel.ranges.length % lastCopied.text.length == 0) {
|
||||
multiPaste = []
|
||||
for (let i = 0; i < lastCopied.text.length; i++)
|
||||
multiPaste.push(doc.splitLines(lastCopied.text[i]))
|
||||
}
|
||||
} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
|
||||
multiPaste = map(textLines, l => [l])
|
||||
}
|
||||
}
|
||||
|
||||
let updateInput = cm.curOp.updateInput
|
||||
// Normal behavior is to insert the new text into every selection
|
||||
for (let i = sel.ranges.length - 1; i >= 0; i--) {
|
||||
let range = sel.ranges[i]
|
||||
let from = range.from(), to = range.to()
|
||||
if (range.empty()) {
|
||||
if (deleted && deleted > 0) // Handle deletion
|
||||
from = Pos(from.line, from.ch - deleted)
|
||||
else if (cm.state.overwrite && !paste) // Handle overwrite
|
||||
to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length))
|
||||
else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
|
||||
from = to = Pos(from.line, 0)
|
||||
}
|
||||
let changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
|
||||
origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}
|
||||
makeChange(cm.doc, changeEvent)
|
||||
signalLater(cm, "inputRead", cm, changeEvent)
|
||||
}
|
||||
if (inserted && !paste)
|
||||
triggerElectric(cm, inserted)
|
||||
|
||||
ensureCursorVisible(cm)
|
||||
if (cm.curOp.updateInput < 2) cm.curOp.updateInput = updateInput
|
||||
cm.curOp.typing = true
|
||||
cm.state.pasteIncoming = cm.state.cutIncoming = -1
|
||||
}
|
||||
|
||||
export function handlePaste(e, cm) {
|
||||
let pasted = e.clipboardData && e.clipboardData.getData("Text")
|
||||
if (pasted) {
|
||||
e.preventDefault()
|
||||
if (!cm.isReadOnly() && !cm.options.disableInput)
|
||||
runInOp(cm, () => applyTextInput(cm, pasted, 0, null, "paste"))
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
export function triggerElectric(cm, inserted) {
|
||||
// When an 'electric' character is inserted, immediately trigger a reindent
|
||||
if (!cm.options.electricChars || !cm.options.smartIndent) return
|
||||
let sel = cm.doc.sel
|
||||
|
||||
for (let i = sel.ranges.length - 1; i >= 0; i--) {
|
||||
let range = sel.ranges[i]
|
||||
if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue
|
||||
let mode = cm.getModeAt(range.head)
|
||||
let indented = false
|
||||
if (mode.electricChars) {
|
||||
for (let j = 0; j < mode.electricChars.length; j++)
|
||||
if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
|
||||
indented = indentLine(cm, range.head.line, "smart")
|
||||
break
|
||||
}
|
||||
} else if (mode.electricInput) {
|
||||
if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
|
||||
indented = indentLine(cm, range.head.line, "smart")
|
||||
}
|
||||
if (indented) signalLater(cm, "electricInput", cm, range.head.line)
|
||||
}
|
||||
}
|
||||
|
||||
export function copyableRanges(cm) {
|
||||
let text = [], ranges = []
|
||||
for (let i = 0; i < cm.doc.sel.ranges.length; i++) {
|
||||
let line = cm.doc.sel.ranges[i].head.line
|
||||
let lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
|
||||
ranges.push(lineRange)
|
||||
text.push(cm.getRange(lineRange.anchor, lineRange.head))
|
||||
}
|
||||
return {text: text, ranges: ranges}
|
||||
}
|
||||
|
||||
export function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
|
||||
field.setAttribute("autocorrect", autocorrect ? "" : "off")
|
||||
field.setAttribute("autocapitalize", autocapitalize ? "" : "off")
|
||||
field.setAttribute("spellcheck", !!spellcheck)
|
||||
}
|
||||
|
||||
export function hiddenTextarea() {
|
||||
let te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
|
||||
let div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
|
||||
// The textarea is kept positioned near the cursor to prevent the
|
||||
// fact that it'll be scrolled into view on input from scrolling
|
||||
// our fake cursor out of view. On webkit, when wrap=off, paste is
|
||||
// very slow. So make the area wide instead.
|
||||
if (webkit) te.style.width = "1000px"
|
||||
else te.setAttribute("wrap", "off")
|
||||
// If border: 0; -- iOS fails to open keyboard (issue #1287)
|
||||
if (ios) te.style.border = "1px solid black"
|
||||
disableBrowserMagic(te)
|
||||
return div
|
||||
}
|
||||
|
|
@ -0,0 +1,148 @@
|
|||
import { flipCtrlCmd, mac, presto } from "../util/browser.js"
|
||||
import { map } from "../util/misc.js"
|
||||
|
||||
import { keyNames } from "./keynames.js"
|
||||
|
||||
export let keyMap = {}
|
||||
|
||||
keyMap.basic = {
|
||||
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
|
||||
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
|
||||
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
|
||||
"Tab": "defaultTab", "Shift-Tab": "indentAuto",
|
||||
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
|
||||
"Esc": "singleSelection"
|
||||
}
|
||||
// Note that the save and find-related commands aren't defined by
|
||||
// default. User code or addons can define them. Unknown commands
|
||||
// are simply ignored.
|
||||
keyMap.pcDefault = {
|
||||
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
|
||||
"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
|
||||
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
|
||||
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
|
||||
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
|
||||
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
|
||||
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
|
||||
"fallthrough": "basic"
|
||||
}
|
||||
// Very basic readline/emacs-style bindings, which are standard on Mac.
|
||||
keyMap.emacsy = {
|
||||
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
|
||||
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
|
||||
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
|
||||
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
|
||||
"Ctrl-O": "openLine"
|
||||
}
|
||||
keyMap.macDefault = {
|
||||
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
|
||||
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
|
||||
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
|
||||
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
|
||||
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
|
||||
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
|
||||
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
|
||||
"fallthrough": ["basic", "emacsy"]
|
||||
}
|
||||
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
|
||||
|
||||
// KEYMAP DISPATCH
|
||||
|
||||
function normalizeKeyName(name) {
|
||||
let parts = name.split(/-(?!$)/)
|
||||
name = parts[parts.length - 1]
|
||||
let alt, ctrl, shift, cmd
|
||||
for (let i = 0; i < parts.length - 1; i++) {
|
||||
let mod = parts[i]
|
||||
if (/^(cmd|meta|m)$/i.test(mod)) cmd = true
|
||||
else if (/^a(lt)?$/i.test(mod)) alt = true
|
||||
else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true
|
||||
else if (/^s(hift)?$/i.test(mod)) shift = true
|
||||
else throw new Error("Unrecognized modifier name: " + mod)
|
||||
}
|
||||
if (alt) name = "Alt-" + name
|
||||
if (ctrl) name = "Ctrl-" + name
|
||||
if (cmd) name = "Cmd-" + name
|
||||
if (shift) name = "Shift-" + name
|
||||
return name
|
||||
}
|
||||
|
||||
// This is a kludge to keep keymaps mostly working as raw objects
|
||||
// (backwards compatibility) while at the same time support features
|
||||
// like normalization and multi-stroke key bindings. It compiles a
|
||||
// new normalized keymap, and then updates the old object to reflect
|
||||
// this.
|
||||
export function normalizeKeyMap(keymap) {
|
||||
let copy = {}
|
||||
for (let keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
|
||||
let value = keymap[keyname]
|
||||
if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue
|
||||
if (value == "...") { delete keymap[keyname]; continue }
|
||||
|
||||
let keys = map(keyname.split(" "), normalizeKeyName)
|
||||
for (let i = 0; i < keys.length; i++) {
|
||||
let val, name
|
||||
if (i == keys.length - 1) {
|
||||
name = keys.join(" ")
|
||||
val = value
|
||||
} else {
|
||||
name = keys.slice(0, i + 1).join(" ")
|
||||
val = "..."
|
||||
}
|
||||
let prev = copy[name]
|
||||
if (!prev) copy[name] = val
|
||||
else if (prev != val) throw new Error("Inconsistent bindings for " + name)
|
||||
}
|
||||
delete keymap[keyname]
|
||||
}
|
||||
for (let prop in copy) keymap[prop] = copy[prop]
|
||||
return keymap
|
||||
}
|
||||
|
||||
export function lookupKey(key, map, handle, context) {
|
||||
map = getKeyMap(map)
|
||||
let found = map.call ? map.call(key, context) : map[key]
|
||||
if (found === false) return "nothing"
|
||||
if (found === "...") return "multi"
|
||||
if (found != null && handle(found)) return "handled"
|
||||
|
||||
if (map.fallthrough) {
|
||||
if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
|
||||
return lookupKey(key, map.fallthrough, handle, context)
|
||||
for (let i = 0; i < map.fallthrough.length; i++) {
|
||||
let result = lookupKey(key, map.fallthrough[i], handle, context)
|
||||
if (result) return result
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Modifier key presses don't count as 'real' key presses for the
|
||||
// purpose of keymap fallthrough.
|
||||
export function isModifierKey(value) {
|
||||
let name = typeof value == "string" ? value : keyNames[value.keyCode]
|
||||
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
|
||||
}
|
||||
|
||||
export function addModifierNames(name, event, noShift) {
|
||||
let base = name
|
||||
if (event.altKey && base != "Alt") name = "Alt-" + name
|
||||
if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name
|
||||
if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name
|
||||
if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name
|
||||
return name
|
||||
}
|
||||
|
||||
// Look up the name of a key as indicated by an event object.
|
||||
export function keyName(event, noShift) {
|
||||
if (presto && event.keyCode == 34 && event["char"]) return false
|
||||
let name = keyNames[event.keyCode]
|
||||
if (name == null || event.altGraphKey) return false
|
||||
// Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
|
||||
// so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
|
||||
if (event.keyCode == 3 && event.code) name = event.code
|
||||
return addModifierNames(name, event, noShift)
|
||||
}
|
||||
|
||||
export function getKeyMap(val) {
|
||||
return typeof val == "string" ? keyMap[val] : val
|
||||
}
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
export let keyNames = {
|
||||
3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
|
||||
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
|
||||
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
|
||||
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
|
||||
106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
|
||||
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
|
||||
221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
|
||||
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
|
||||
}
|
||||
|
||||
// Number keys
|
||||
for (let i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i)
|
||||
// Alphabetic keys
|
||||
for (let i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i)
|
||||
// Function keys
|
||||
for (let i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i
|
||||
|
|
@ -0,0 +1,111 @@
|
|||
import { Pos } from "../line/pos.js"
|
||||
import { prepareMeasureForLine, measureCharPrepared, wrappedLineExtentChar } from "../measurement/position_measurement.js"
|
||||
import { getBidiPartAt, getOrder } from "../util/bidi.js"
|
||||
import { findFirst, lst, skipExtendingChars } from "../util/misc.js"
|
||||
|
||||
function moveCharLogically(line, ch, dir) {
|
||||
let target = skipExtendingChars(line.text, ch + dir, dir)
|
||||
return target < 0 || target > line.text.length ? null : target
|
||||
}
|
||||
|
||||
export function moveLogically(line, start, dir) {
|
||||
let ch = moveCharLogically(line, start.ch, dir)
|
||||
return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
|
||||
}
|
||||
|
||||
export function endOfLine(visually, cm, lineObj, lineNo, dir) {
|
||||
if (visually) {
|
||||
if (cm.doc.direction == "rtl") dir = -dir
|
||||
let order = getOrder(lineObj, cm.doc.direction)
|
||||
if (order) {
|
||||
let part = dir < 0 ? lst(order) : order[0]
|
||||
let moveInStorageOrder = (dir < 0) == (part.level == 1)
|
||||
let sticky = moveInStorageOrder ? "after" : "before"
|
||||
let ch
|
||||
// With a wrapped rtl chunk (possibly spanning multiple bidi parts),
|
||||
// it could be that the last bidi part is not on the last visual line,
|
||||
// since visual lines contain content order-consecutive chunks.
|
||||
// Thus, in rtl, we are looking for the first (content-order) character
|
||||
// in the rtl chunk that is on the last line (that is, the same line
|
||||
// as the last (content-order) character).
|
||||
if (part.level > 0 || cm.doc.direction == "rtl") {
|
||||
let prep = prepareMeasureForLine(cm, lineObj)
|
||||
ch = dir < 0 ? lineObj.text.length - 1 : 0
|
||||
let targetTop = measureCharPrepared(cm, prep, ch).top
|
||||
ch = findFirst(ch => measureCharPrepared(cm, prep, ch).top == targetTop, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)
|
||||
if (sticky == "before") ch = moveCharLogically(lineObj, ch, 1)
|
||||
} else ch = dir < 0 ? part.to : part.from
|
||||
return new Pos(lineNo, ch, sticky)
|
||||
}
|
||||
}
|
||||
return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
|
||||
}
|
||||
|
||||
export function moveVisually(cm, line, start, dir) {
|
||||
let bidi = getOrder(line, cm.doc.direction)
|
||||
if (!bidi) return moveLogically(line, start, dir)
|
||||
if (start.ch >= line.text.length) {
|
||||
start.ch = line.text.length
|
||||
start.sticky = "before"
|
||||
} else if (start.ch <= 0) {
|
||||
start.ch = 0
|
||||
start.sticky = "after"
|
||||
}
|
||||
let partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]
|
||||
if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
|
||||
// Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
|
||||
// nothing interesting happens.
|
||||
return moveLogically(line, start, dir)
|
||||
}
|
||||
|
||||
let mv = (pos, dir) => moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir)
|
||||
let prep
|
||||
let getWrappedLineExtent = ch => {
|
||||
if (!cm.options.lineWrapping) return {begin: 0, end: line.text.length}
|
||||
prep = prep || prepareMeasureForLine(cm, line)
|
||||
return wrappedLineExtentChar(cm, line, prep, ch)
|
||||
}
|
||||
let wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch)
|
||||
|
||||
if (cm.doc.direction == "rtl" || part.level == 1) {
|
||||
let moveInStorageOrder = (part.level == 1) == (dir < 0)
|
||||
let ch = mv(start, moveInStorageOrder ? 1 : -1)
|
||||
if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
|
||||
// Case 2: We move within an rtl part or in an rtl editor on the same visual line
|
||||
let sticky = moveInStorageOrder ? "before" : "after"
|
||||
return new Pos(start.line, ch, sticky)
|
||||
}
|
||||
}
|
||||
|
||||
// Case 3: Could not move within this bidi part in this visual line, so leave
|
||||
// the current bidi part
|
||||
|
||||
let searchInVisualLine = (partPos, dir, wrappedLineExtent) => {
|
||||
let getRes = (ch, moveInStorageOrder) => moveInStorageOrder
|
||||
? new Pos(start.line, mv(ch, 1), "before")
|
||||
: new Pos(start.line, ch, "after")
|
||||
|
||||
for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
|
||||
let part = bidi[partPos]
|
||||
let moveInStorageOrder = (dir > 0) == (part.level != 1)
|
||||
let ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)
|
||||
if (part.from <= ch && ch < part.to) return getRes(ch, moveInStorageOrder)
|
||||
ch = moveInStorageOrder ? part.from : mv(part.to, -1)
|
||||
if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) return getRes(ch, moveInStorageOrder)
|
||||
}
|
||||
}
|
||||
|
||||
// Case 3a: Look for other bidi parts on the same visual line
|
||||
let res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)
|
||||
if (res) return res
|
||||
|
||||
// Case 3b: Look for other bidi parts on the next visual line
|
||||
let nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)
|
||||
if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
|
||||
res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))
|
||||
if (res) return res
|
||||
}
|
||||
|
||||
// Case 4: Nowhere to move
|
||||
return null
|
||||
}
|
||||
|
|
@ -0,0 +1,284 @@
|
|||
import { countColumn } from "../util/misc.js"
|
||||
import { copyState, innerMode, startState } from "../modes.js"
|
||||
import StringStream from "../util/StringStream.js"
|
||||
|
||||
import { getLine, lineNo } from "./utils_line.js"
|
||||
import { clipPos } from "./pos.js"
|
||||
|
||||
class SavedContext {
|
||||
constructor(state, lookAhead) {
|
||||
this.state = state
|
||||
this.lookAhead = lookAhead
|
||||
}
|
||||
}
|
||||
|
||||
class Context {
|
||||
constructor(doc, state, line, lookAhead) {
|
||||
this.state = state
|
||||
this.doc = doc
|
||||
this.line = line
|
||||
this.maxLookAhead = lookAhead || 0
|
||||
this.baseTokens = null
|
||||
this.baseTokenPos = 1
|
||||
}
|
||||
|
||||
lookAhead(n) {
|
||||
let line = this.doc.getLine(this.line + n)
|
||||
if (line != null && n > this.maxLookAhead) this.maxLookAhead = n
|
||||
return line
|
||||
}
|
||||
|
||||
baseToken(n) {
|
||||
if (!this.baseTokens) return null
|
||||
while (this.baseTokens[this.baseTokenPos] <= n)
|
||||
this.baseTokenPos += 2
|
||||
let type = this.baseTokens[this.baseTokenPos + 1]
|
||||
return {type: type && type.replace(/( |^)overlay .*/, ""),
|
||||
size: this.baseTokens[this.baseTokenPos] - n}
|
||||
}
|
||||
|
||||
nextLine() {
|
||||
this.line++
|
||||
if (this.maxLookAhead > 0) this.maxLookAhead--
|
||||
}
|
||||
|
||||
static fromSaved(doc, saved, line) {
|
||||
if (saved instanceof SavedContext)
|
||||
return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead)
|
||||
else
|
||||
return new Context(doc, copyState(doc.mode, saved), line)
|
||||
}
|
||||
|
||||
save(copy) {
|
||||
let state = copy !== false ? copyState(this.doc.mode, this.state) : this.state
|
||||
return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Compute a style array (an array starting with a mode generation
|
||||
// -- for invalidation -- followed by pairs of end positions and
|
||||
// style strings), which is used to highlight the tokens on the
|
||||
// line.
|
||||
export function highlightLine(cm, line, context, forceToEnd) {
|
||||
// A styles array always starts with a number identifying the
|
||||
// mode/overlays that it is based on (for easy invalidation).
|
||||
let st = [cm.state.modeGen], lineClasses = {}
|
||||
// Compute the base array of styles
|
||||
runMode(cm, line.text, cm.doc.mode, context, (end, style) => st.push(end, style),
|
||||
lineClasses, forceToEnd)
|
||||
let state = context.state
|
||||
|
||||
// Run overlays, adjust style array.
|
||||
for (let o = 0; o < cm.state.overlays.length; ++o) {
|
||||
context.baseTokens = st
|
||||
let overlay = cm.state.overlays[o], i = 1, at = 0
|
||||
context.state = true
|
||||
runMode(cm, line.text, overlay.mode, context, (end, style) => {
|
||||
let start = i
|
||||
// Ensure there's a token end at the current position, and that i points at it
|
||||
while (at < end) {
|
||||
let i_end = st[i]
|
||||
if (i_end > end)
|
||||
st.splice(i, 1, end, st[i+1], i_end)
|
||||
i += 2
|
||||
at = Math.min(end, i_end)
|
||||
}
|
||||
if (!style) return
|
||||
if (overlay.opaque) {
|
||||
st.splice(start, i - start, end, "overlay " + style)
|
||||
i = start + 2
|
||||
} else {
|
||||
for (; start < i; start += 2) {
|
||||
let cur = st[start+1]
|
||||
st[start+1] = (cur ? cur + " " : "") + "overlay " + style
|
||||
}
|
||||
}
|
||||
}, lineClasses)
|
||||
context.state = state
|
||||
context.baseTokens = null
|
||||
context.baseTokenPos = 1
|
||||
}
|
||||
|
||||
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
|
||||
}
|
||||
|
||||
export function getLineStyles(cm, line, updateFrontier) {
|
||||
if (!line.styles || line.styles[0] != cm.state.modeGen) {
|
||||
let context = getContextBefore(cm, lineNo(line))
|
||||
let resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state)
|
||||
let result = highlightLine(cm, line, context)
|
||||
if (resetState) context.state = resetState
|
||||
line.stateAfter = context.save(!resetState)
|
||||
line.styles = result.styles
|
||||
if (result.classes) line.styleClasses = result.classes
|
||||
else if (line.styleClasses) line.styleClasses = null
|
||||
if (updateFrontier === cm.doc.highlightFrontier)
|
||||
cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier)
|
||||
}
|
||||
return line.styles
|
||||
}
|
||||
|
||||
export function getContextBefore(cm, n, precise) {
|
||||
let doc = cm.doc, display = cm.display
|
||||
if (!doc.mode.startState) return new Context(doc, true, n)
|
||||
let start = findStartLine(cm, n, precise)
|
||||
let saved = start > doc.first && getLine(doc, start - 1).stateAfter
|
||||
let context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start)
|
||||
|
||||
doc.iter(start, n, line => {
|
||||
processLine(cm, line.text, context)
|
||||
let pos = context.line
|
||||
line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null
|
||||
context.nextLine()
|
||||
})
|
||||
if (precise) doc.modeFrontier = context.line
|
||||
return context
|
||||
}
|
||||
|
||||
// Lightweight form of highlight -- proceed over this line and
|
||||
// update state, but don't save a style array. Used for lines that
|
||||
// aren't currently visible.
|
||||
export function processLine(cm, text, context, startAt) {
|
||||
let mode = cm.doc.mode
|
||||
let stream = new StringStream(text, cm.options.tabSize, context)
|
||||
stream.start = stream.pos = startAt || 0
|
||||
if (text == "") callBlankLine(mode, context.state)
|
||||
while (!stream.eol()) {
|
||||
readToken(mode, stream, context.state)
|
||||
stream.start = stream.pos
|
||||
}
|
||||
}
|
||||
|
||||
function callBlankLine(mode, state) {
|
||||
if (mode.blankLine) return mode.blankLine(state)
|
||||
if (!mode.innerMode) return
|
||||
let inner = innerMode(mode, state)
|
||||
if (inner.mode.blankLine) return inner.mode.blankLine(inner.state)
|
||||
}
|
||||
|
||||
function readToken(mode, stream, state, inner) {
|
||||
for (let i = 0; i < 10; i++) {
|
||||
if (inner) inner[0] = innerMode(mode, state).mode
|
||||
let style = mode.token(stream, state)
|
||||
if (stream.pos > stream.start) return style
|
||||
}
|
||||
throw new Error("Mode " + mode.name + " failed to advance stream.")
|
||||
}
|
||||
|
||||
class Token {
|
||||
constructor(stream, type, state) {
|
||||
this.start = stream.start; this.end = stream.pos
|
||||
this.string = stream.current()
|
||||
this.type = type || null
|
||||
this.state = state
|
||||
}
|
||||
}
|
||||
|
||||
// Utility for getTokenAt and getLineTokens
|
||||
export function takeToken(cm, pos, precise, asArray) {
|
||||
let doc = cm.doc, mode = doc.mode, style
|
||||
pos = clipPos(doc, pos)
|
||||
let line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise)
|
||||
let stream = new StringStream(line.text, cm.options.tabSize, context), tokens
|
||||
if (asArray) tokens = []
|
||||
while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
|
||||
stream.start = stream.pos
|
||||
style = readToken(mode, stream, context.state)
|
||||
if (asArray) tokens.push(new Token(stream, style, copyState(doc.mode, context.state)))
|
||||
}
|
||||
return asArray ? tokens : new Token(stream, style, context.state)
|
||||
}
|
||||
|
||||
function extractLineClasses(type, output) {
|
||||
if (type) for (;;) {
|
||||
let lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
|
||||
if (!lineClass) break
|
||||
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
|
||||
let prop = lineClass[1] ? "bgClass" : "textClass"
|
||||
if (output[prop] == null)
|
||||
output[prop] = lineClass[2]
|
||||
else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
|
||||
output[prop] += " " + lineClass[2]
|
||||
}
|
||||
return type
|
||||
}
|
||||
|
||||
// Run the given mode's parser over a line, calling f for each token.
|
||||
function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
|
||||
let flattenSpans = mode.flattenSpans
|
||||
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans
|
||||
let curStart = 0, curStyle = null
|
||||
let stream = new StringStream(text, cm.options.tabSize, context), style
|
||||
let inner = cm.options.addModeClass && [null]
|
||||
if (text == "") extractLineClasses(callBlankLine(mode, context.state), lineClasses)
|
||||
while (!stream.eol()) {
|
||||
if (stream.pos > cm.options.maxHighlightLength) {
|
||||
flattenSpans = false
|
||||
if (forceToEnd) processLine(cm, text, context, stream.pos)
|
||||
stream.pos = text.length
|
||||
style = null
|
||||
} else {
|
||||
style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses)
|
||||
}
|
||||
if (inner) {
|
||||
let mName = inner[0].name
|
||||
if (mName) style = "m-" + (style ? mName + " " + style : mName)
|
||||
}
|
||||
if (!flattenSpans || curStyle != style) {
|
||||
while (curStart < stream.start) {
|
||||
curStart = Math.min(stream.start, curStart + 5000)
|
||||
f(curStart, curStyle)
|
||||
}
|
||||
curStyle = style
|
||||
}
|
||||
stream.start = stream.pos
|
||||
}
|
||||
while (curStart < stream.pos) {
|
||||
// Webkit seems to refuse to render text nodes longer than 57444
|
||||
// characters, and returns inaccurate measurements in nodes
|
||||
// starting around 5000 chars.
|
||||
let pos = Math.min(stream.pos, curStart + 5000)
|
||||
f(pos, curStyle)
|
||||
curStart = pos
|
||||
}
|
||||
}
|
||||
|
||||
// Finds the line to start with when starting a parse. Tries to
|
||||
// find a line with a stateAfter, so that it can start with a
|
||||
// valid state. If that fails, it returns the line with the
|
||||
// smallest indentation, which tends to need the least context to
|
||||
// parse correctly.
|
||||
function findStartLine(cm, n, precise) {
|
||||
let minindent, minline, doc = cm.doc
|
||||
let lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
|
||||
for (let search = n; search > lim; --search) {
|
||||
if (search <= doc.first) return doc.first
|
||||
let line = getLine(doc, search - 1), after = line.stateAfter
|
||||
if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
|
||||
return search
|
||||
let indented = countColumn(line.text, null, cm.options.tabSize)
|
||||
if (minline == null || minindent > indented) {
|
||||
minline = search - 1
|
||||
minindent = indented
|
||||
}
|
||||
}
|
||||
return minline
|
||||
}
|
||||
|
||||
export function retreatFrontier(doc, n) {
|
||||
doc.modeFrontier = Math.min(doc.modeFrontier, n)
|
||||
if (doc.highlightFrontier < n - 10) return
|
||||
let start = doc.first
|
||||
for (let line = n - 1; line > start; line--) {
|
||||
let saved = getLine(doc, line).stateAfter
|
||||
// change is on 3
|
||||
// state on line 1 looked ahead 2 -- so saw 3
|
||||
// test 1 + 2 < 3 should cover this
|
||||
if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
|
||||
start = line + 1
|
||||
break
|
||||
}
|
||||
}
|
||||
doc.highlightFrontier = Math.min(doc.highlightFrontier, start)
|
||||
}
|
||||
|
|
@ -0,0 +1,349 @@
|
|||
import { getOrder } from "../util/bidi.js"
|
||||
import { ie, ie_version, webkit } from "../util/browser.js"
|
||||
import { elt, eltP, joinClasses } from "../util/dom.js"
|
||||
import { eventMixin, signal } from "../util/event.js"
|
||||
import { hasBadBidiRects, zeroWidthElement } from "../util/feature_detection.js"
|
||||
import { lst, spaceStr } from "../util/misc.js"
|
||||
|
||||
import { getLineStyles } from "./highlight.js"
|
||||
import { attachMarkedSpans, compareCollapsedMarkers, detachMarkedSpans, lineIsHidden, visualLineContinued } from "./spans.js"
|
||||
import { getLine, lineNo, updateLineHeight } from "./utils_line.js"
|
||||
|
||||
// LINE DATA STRUCTURE
|
||||
|
||||
// Line objects. These hold state related to a line, including
|
||||
// highlighting info (the styles array).
|
||||
export class Line {
|
||||
constructor(text, markedSpans, estimateHeight) {
|
||||
this.text = text
|
||||
attachMarkedSpans(this, markedSpans)
|
||||
this.height = estimateHeight ? estimateHeight(this) : 1
|
||||
}
|
||||
|
||||
lineNo() { return lineNo(this) }
|
||||
}
|
||||
eventMixin(Line)
|
||||
|
||||
// Change the content (text, markers) of a line. Automatically
|
||||
// invalidates cached information and tries to re-estimate the
|
||||
// line's height.
|
||||
export function updateLine(line, text, markedSpans, estimateHeight) {
|
||||
line.text = text
|
||||
if (line.stateAfter) line.stateAfter = null
|
||||
if (line.styles) line.styles = null
|
||||
if (line.order != null) line.order = null
|
||||
detachMarkedSpans(line)
|
||||
attachMarkedSpans(line, markedSpans)
|
||||
let estHeight = estimateHeight ? estimateHeight(line) : 1
|
||||
if (estHeight != line.height) updateLineHeight(line, estHeight)
|
||||
}
|
||||
|
||||
// Detach a line from the document tree and its markers.
|
||||
export function cleanUpLine(line) {
|
||||
line.parent = null
|
||||
detachMarkedSpans(line)
|
||||
}
|
||||
|
||||
// Convert a style as returned by a mode (either null, or a string
|
||||
// containing one or more styles) to a CSS style. This is cached,
|
||||
// and also looks for line-wide styles.
|
||||
let styleToClassCache = {}, styleToClassCacheWithMode = {}
|
||||
function interpretTokenStyle(style, options) {
|
||||
if (!style || /^\s*$/.test(style)) return null
|
||||
let cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
|
||||
return cache[style] ||
|
||||
(cache[style] = style.replace(/\S+/g, "cm-$&"))
|
||||
}
|
||||
|
||||
// Render the DOM representation of the text of a line. Also builds
|
||||
// up a 'line map', which points at the DOM nodes that represent
|
||||
// specific stretches of text, and is used by the measuring code.
|
||||
// The returned object contains the DOM node, this map, and
|
||||
// information about line-wide styles that were set by the mode.
|
||||
export function buildLineContent(cm, lineView) {
|
||||
// The padding-right forces the element to have a 'border', which
|
||||
// is needed on Webkit to be able to get line-level bounding
|
||||
// rectangles for it (in measureChar).
|
||||
let content = eltP("span", null, null, webkit ? "padding-right: .1px" : null)
|
||||
let builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
|
||||
col: 0, pos: 0, cm: cm,
|
||||
trailingSpace: false,
|
||||
splitSpaces: cm.getOption("lineWrapping")}
|
||||
lineView.measure = {}
|
||||
|
||||
// Iterate over the logical lines that make up this visual line.
|
||||
for (let i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
|
||||
let line = i ? lineView.rest[i - 1] : lineView.line, order
|
||||
builder.pos = 0
|
||||
builder.addToken = buildToken
|
||||
// Optionally wire in some hacks into the token-rendering
|
||||
// algorithm, to deal with browser quirks.
|
||||
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
|
||||
builder.addToken = buildTokenBadBidi(builder.addToken, order)
|
||||
builder.map = []
|
||||
let allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
|
||||
insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
|
||||
if (line.styleClasses) {
|
||||
if (line.styleClasses.bgClass)
|
||||
builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "")
|
||||
if (line.styleClasses.textClass)
|
||||
builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "")
|
||||
}
|
||||
|
||||
// Ensure at least a single node is present, for measuring.
|
||||
if (builder.map.length == 0)
|
||||
builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)))
|
||||
|
||||
// Store the map and a cache object for the current logical line
|
||||
if (i == 0) {
|
||||
lineView.measure.map = builder.map
|
||||
lineView.measure.cache = {}
|
||||
} else {
|
||||
;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
|
||||
;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
|
||||
}
|
||||
}
|
||||
|
||||
// See issue #2901
|
||||
if (webkit) {
|
||||
let last = builder.content.lastChild
|
||||
if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
|
||||
builder.content.className = "cm-tab-wrap-hack"
|
||||
}
|
||||
|
||||
signal(cm, "renderLine", cm, lineView.line, builder.pre)
|
||||
if (builder.pre.className)
|
||||
builder.textClass = joinClasses(builder.pre.className, builder.textClass || "")
|
||||
|
||||
return builder
|
||||
}
|
||||
|
||||
export function defaultSpecialCharPlaceholder(ch) {
|
||||
let token = elt("span", "\u2022", "cm-invalidchar")
|
||||
token.title = "\\u" + ch.charCodeAt(0).toString(16)
|
||||
token.setAttribute("aria-label", token.title)
|
||||
return token
|
||||
}
|
||||
|
||||
// Build up the DOM representation for a single token, and add it to
|
||||
// the line map. Takes care to render special characters separately.
|
||||
function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
|
||||
if (!text) return
|
||||
let displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
|
||||
let special = builder.cm.state.specialChars, mustWrap = false
|
||||
let content
|
||||
if (!special.test(text)) {
|
||||
builder.col += text.length
|
||||
content = document.createTextNode(displayText)
|
||||
builder.map.push(builder.pos, builder.pos + text.length, content)
|
||||
if (ie && ie_version < 9) mustWrap = true
|
||||
builder.pos += text.length
|
||||
} else {
|
||||
content = document.createDocumentFragment()
|
||||
let pos = 0
|
||||
while (true) {
|
||||
special.lastIndex = pos
|
||||
let m = special.exec(text)
|
||||
let skipped = m ? m.index - pos : text.length - pos
|
||||
if (skipped) {
|
||||
let txt = document.createTextNode(displayText.slice(pos, pos + skipped))
|
||||
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]))
|
||||
else content.appendChild(txt)
|
||||
builder.map.push(builder.pos, builder.pos + skipped, txt)
|
||||
builder.col += skipped
|
||||
builder.pos += skipped
|
||||
}
|
||||
if (!m) break
|
||||
pos += skipped + 1
|
||||
let txt
|
||||
if (m[0] == "\t") {
|
||||
let tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
|
||||
txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
|
||||
txt.setAttribute("role", "presentation")
|
||||
txt.setAttribute("cm-text", "\t")
|
||||
builder.col += tabWidth
|
||||
} else if (m[0] == "\r" || m[0] == "\n") {
|
||||
txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
|
||||
txt.setAttribute("cm-text", m[0])
|
||||
builder.col += 1
|
||||
} else {
|
||||
txt = builder.cm.options.specialCharPlaceholder(m[0])
|
||||
txt.setAttribute("cm-text", m[0])
|
||||
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]))
|
||||
else content.appendChild(txt)
|
||||
builder.col += 1
|
||||
}
|
||||
builder.map.push(builder.pos, builder.pos + 1, txt)
|
||||
builder.pos++
|
||||
}
|
||||
}
|
||||
builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
|
||||
if (style || startStyle || endStyle || mustWrap || css) {
|
||||
let fullStyle = style || ""
|
||||
if (startStyle) fullStyle += startStyle
|
||||
if (endStyle) fullStyle += endStyle
|
||||
let token = elt("span", [content], fullStyle, css)
|
||||
if (attributes) {
|
||||
for (let attr in attributes) if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
|
||||
token.setAttribute(attr, attributes[attr])
|
||||
}
|
||||
return builder.content.appendChild(token)
|
||||
}
|
||||
builder.content.appendChild(content)
|
||||
}
|
||||
|
||||
// Change some spaces to NBSP to prevent the browser from collapsing
|
||||
// trailing spaces at the end of a line when rendering text (issue #1362).
|
||||
function splitSpaces(text, trailingBefore) {
|
||||
if (text.length > 1 && !/ /.test(text)) return text
|
||||
let spaceBefore = trailingBefore, result = ""
|
||||
for (let i = 0; i < text.length; i++) {
|
||||
let ch = text.charAt(i)
|
||||
if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
|
||||
ch = "\u00a0"
|
||||
result += ch
|
||||
spaceBefore = ch == " "
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
||||
// Work around nonsense dimensions being reported for stretches of
|
||||
// right-to-left text.
|
||||
function buildTokenBadBidi(inner, order) {
|
||||
return (builder, text, style, startStyle, endStyle, css, attributes) => {
|
||||
style = style ? style + " cm-force-border" : "cm-force-border"
|
||||
let start = builder.pos, end = start + text.length
|
||||
for (;;) {
|
||||
// Find the part that overlaps with the start of this text
|
||||
let part
|
||||
for (let i = 0; i < order.length; i++) {
|
||||
part = order[i]
|
||||
if (part.to > start && part.from <= start) break
|
||||
}
|
||||
if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, css, attributes)
|
||||
inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes)
|
||||
startStyle = null
|
||||
text = text.slice(part.to - start)
|
||||
start = part.to
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
|
||||
let widget = !ignoreWidget && marker.widgetNode
|
||||
if (widget) builder.map.push(builder.pos, builder.pos + size, widget)
|
||||
if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
|
||||
if (!widget)
|
||||
widget = builder.content.appendChild(document.createElement("span"))
|
||||
widget.setAttribute("cm-marker", marker.id)
|
||||
}
|
||||
if (widget) {
|
||||
builder.cm.display.input.setUneditable(widget)
|
||||
builder.content.appendChild(widget)
|
||||
}
|
||||
builder.pos += size
|
||||
builder.trailingSpace = false
|
||||
}
|
||||
|
||||
// Outputs a number of spans to make up a line, taking highlighting
|
||||
// and marked text into account.
|
||||
function insertLineContent(line, builder, styles) {
|
||||
let spans = line.markedSpans, allText = line.text, at = 0
|
||||
if (!spans) {
|
||||
for (let i = 1; i < styles.length; i+=2)
|
||||
builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options))
|
||||
return
|
||||
}
|
||||
|
||||
let len = allText.length, pos = 0, i = 1, text = "", style, css
|
||||
let nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes
|
||||
for (;;) {
|
||||
if (nextChange == pos) { // Update current marker set
|
||||
spanStyle = spanEndStyle = spanStartStyle = css = ""
|
||||
attributes = null
|
||||
collapsed = null; nextChange = Infinity
|
||||
let foundBookmarks = [], endStyles
|
||||
for (let j = 0; j < spans.length; ++j) {
|
||||
let sp = spans[j], m = sp.marker
|
||||
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
|
||||
foundBookmarks.push(m)
|
||||
} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
|
||||
if (sp.to != null && sp.to != pos && nextChange > sp.to) {
|
||||
nextChange = sp.to
|
||||
spanEndStyle = ""
|
||||
}
|
||||
if (m.className) spanStyle += " " + m.className
|
||||
if (m.css) css = (css ? css + ";" : "") + m.css
|
||||
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle
|
||||
if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to)
|
||||
// support for the old title property
|
||||
// https://github.com/codemirror/CodeMirror/pull/5673
|
||||
if (m.title) (attributes || (attributes = {})).title = m.title
|
||||
if (m.attributes) {
|
||||
for (let attr in m.attributes)
|
||||
(attributes || (attributes = {}))[attr] = m.attributes[attr]
|
||||
}
|
||||
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
|
||||
collapsed = sp
|
||||
} else if (sp.from > pos && nextChange > sp.from) {
|
||||
nextChange = sp.from
|
||||
}
|
||||
}
|
||||
if (endStyles) for (let j = 0; j < endStyles.length; j += 2)
|
||||
if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j]
|
||||
|
||||
if (!collapsed || collapsed.from == pos) for (let j = 0; j < foundBookmarks.length; ++j)
|
||||
buildCollapsedSpan(builder, 0, foundBookmarks[j])
|
||||
if (collapsed && (collapsed.from || 0) == pos) {
|
||||
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
|
||||
collapsed.marker, collapsed.from == null)
|
||||
if (collapsed.to == null) return
|
||||
if (collapsed.to == pos) collapsed = false
|
||||
}
|
||||
}
|
||||
if (pos >= len) break
|
||||
|
||||
let upto = Math.min(len, nextChange)
|
||||
while (true) {
|
||||
if (text) {
|
||||
let end = pos + text.length
|
||||
if (!collapsed) {
|
||||
let tokenText = end > upto ? text.slice(0, upto - pos) : text
|
||||
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
|
||||
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes)
|
||||
}
|
||||
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
|
||||
pos = end
|
||||
spanStartStyle = ""
|
||||
}
|
||||
text = allText.slice(at, at = styles[i++])
|
||||
style = interpretTokenStyle(styles[i++], builder.cm.options)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// These objects are used to represent the visible (currently drawn)
|
||||
// part of the document. A LineView may correspond to multiple
|
||||
// logical lines, if those are connected by collapsed ranges.
|
||||
export function LineView(doc, line, lineN) {
|
||||
// The starting line
|
||||
this.line = line
|
||||
// Continuing lines, if any
|
||||
this.rest = visualLineContinued(line)
|
||||
// Number of logical lines in this visual line
|
||||
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
|
||||
this.node = this.text = null
|
||||
this.hidden = lineIsHidden(doc, line)
|
||||
}
|
||||
|
||||
// Create a range of LineView objects for the given lines.
|
||||
export function buildViewArray(cm, from, to) {
|
||||
let array = [], nextPos
|
||||
for (let pos = from; pos < to; pos = nextPos) {
|
||||
let view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
|
||||
nextPos = pos + view.size
|
||||
array.push(view)
|
||||
}
|
||||
return array
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
import { getLine } from "./utils_line.js"
|
||||
|
||||
// A Pos instance represents a position within the text.
|
||||
export function Pos(line, ch, sticky = null) {
|
||||
if (!(this instanceof Pos)) return new Pos(line, ch, sticky)
|
||||
this.line = line
|
||||
this.ch = ch
|
||||
this.sticky = sticky
|
||||
}
|
||||
|
||||
// Compare two positions, return 0 if they are the same, a negative
|
||||
// number when a is less, and a positive number otherwise.
|
||||
export function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
|
||||
|
||||
export function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
|
||||
|
||||
export function copyPos(x) {return Pos(x.line, x.ch)}
|
||||
export function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
|
||||
export function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
|
||||
|
||||
// Most of the external API clips given positions to make sure they
|
||||
// actually exist within the document.
|
||||
export function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
|
||||
export function clipPos(doc, pos) {
|
||||
if (pos.line < doc.first) return Pos(doc.first, 0)
|
||||
let last = doc.first + doc.size - 1
|
||||
if (pos.line > last) return Pos(last, getLine(doc, last).text.length)
|
||||
return clipToLen(pos, getLine(doc, pos.line).text.length)
|
||||
}
|
||||
function clipToLen(pos, linelen) {
|
||||
let ch = pos.ch
|
||||
if (ch == null || ch > linelen) return Pos(pos.line, linelen)
|
||||
else if (ch < 0) return Pos(pos.line, 0)
|
||||
else return pos
|
||||
}
|
||||
export function clipPosArray(doc, array) {
|
||||
let out = []
|
||||
for (let i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i])
|
||||
return out
|
||||
}
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
// Optimize some code when these features are not used.
|
||||
export let sawReadOnlySpans = false, sawCollapsedSpans = false
|
||||
|
||||
export function seeReadOnlySpans() {
|
||||
sawReadOnlySpans = true
|
||||
}
|
||||
|
||||
export function seeCollapsedSpans() {
|
||||
sawCollapsedSpans = true
|
||||
}
|
||||
|
|
@ -0,0 +1,382 @@
|
|||
import { indexOf, lst } from "../util/misc.js"
|
||||
|
||||
import { cmp } from "./pos.js"
|
||||
import { sawCollapsedSpans } from "./saw_special_spans.js"
|
||||
import { getLine, isLine, lineNo } from "./utils_line.js"
|
||||
|
||||
// TEXTMARKER SPANS
|
||||
|
||||
export function MarkedSpan(marker, from, to) {
|
||||
this.marker = marker
|
||||
this.from = from; this.to = to
|
||||
}
|
||||
|
||||
// Search an array of spans for a span matching the given marker.
|
||||
export function getMarkedSpanFor(spans, marker) {
|
||||
if (spans) for (let i = 0; i < spans.length; ++i) {
|
||||
let span = spans[i]
|
||||
if (span.marker == marker) return span
|
||||
}
|
||||
}
|
||||
// Remove a span from an array, returning undefined if no spans are
|
||||
// left (we don't store arrays for lines without spans).
|
||||
export function removeMarkedSpan(spans, span) {
|
||||
let r
|
||||
for (let i = 0; i < spans.length; ++i)
|
||||
if (spans[i] != span) (r || (r = [])).push(spans[i])
|
||||
return r
|
||||
}
|
||||
// Add a span to a line.
|
||||
export function addMarkedSpan(line, span) {
|
||||
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
|
||||
span.marker.attachLine(line)
|
||||
}
|
||||
|
||||
// Used for the algorithm that adjusts markers for a change in the
|
||||
// document. These functions cut an array of spans at a given
|
||||
// character position, returning an array of remaining chunks (or
|
||||
// undefined if nothing remains).
|
||||
function markedSpansBefore(old, startCh, isInsert) {
|
||||
let nw
|
||||
if (old) for (let i = 0; i < old.length; ++i) {
|
||||
let span = old[i], marker = span.marker
|
||||
let startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
|
||||
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
|
||||
let endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
|
||||
;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
|
||||
}
|
||||
}
|
||||
return nw
|
||||
}
|
||||
function markedSpansAfter(old, endCh, isInsert) {
|
||||
let nw
|
||||
if (old) for (let i = 0; i < old.length; ++i) {
|
||||
let span = old[i], marker = span.marker
|
||||
let endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
|
||||
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
|
||||
let startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
|
||||
;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
|
||||
span.to == null ? null : span.to - endCh))
|
||||
}
|
||||
}
|
||||
return nw
|
||||
}
|
||||
|
||||
// Given a change object, compute the new set of marker spans that
|
||||
// cover the line in which the change took place. Removes spans
|
||||
// entirely within the change, reconnects spans belonging to the
|
||||
// same marker that appear on both sides of the change, and cuts off
|
||||
// spans partially within the change. Returns an array of span
|
||||
// arrays with one element for each line in (after) the change.
|
||||
export function stretchSpansOverChange(doc, change) {
|
||||
if (change.full) return null
|
||||
let oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
|
||||
let oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
|
||||
if (!oldFirst && !oldLast) return null
|
||||
|
||||
let startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
|
||||
// Get the spans that 'stick out' on both sides
|
||||
let first = markedSpansBefore(oldFirst, startCh, isInsert)
|
||||
let last = markedSpansAfter(oldLast, endCh, isInsert)
|
||||
|
||||
// Next, merge those two ends
|
||||
let sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
|
||||
if (first) {
|
||||
// Fix up .to properties of first
|
||||
for (let i = 0; i < first.length; ++i) {
|
||||
let span = first[i]
|
||||
if (span.to == null) {
|
||||
let found = getMarkedSpanFor(last, span.marker)
|
||||
if (!found) span.to = startCh
|
||||
else if (sameLine) span.to = found.to == null ? null : found.to + offset
|
||||
}
|
||||
}
|
||||
}
|
||||
if (last) {
|
||||
// Fix up .from in last (or move them into first in case of sameLine)
|
||||
for (let i = 0; i < last.length; ++i) {
|
||||
let span = last[i]
|
||||
if (span.to != null) span.to += offset
|
||||
if (span.from == null) {
|
||||
let found = getMarkedSpanFor(first, span.marker)
|
||||
if (!found) {
|
||||
span.from = offset
|
||||
if (sameLine) (first || (first = [])).push(span)
|
||||
}
|
||||
} else {
|
||||
span.from += offset
|
||||
if (sameLine) (first || (first = [])).push(span)
|
||||
}
|
||||
}
|
||||
}
|
||||
// Make sure we didn't create any zero-length spans
|
||||
if (first) first = clearEmptySpans(first)
|
||||
if (last && last != first) last = clearEmptySpans(last)
|
||||
|
||||
let newMarkers = [first]
|
||||
if (!sameLine) {
|
||||
// Fill gap with whole-line-spans
|
||||
let gap = change.text.length - 2, gapMarkers
|
||||
if (gap > 0 && first)
|
||||
for (let i = 0; i < first.length; ++i)
|
||||
if (first[i].to == null)
|
||||
(gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null))
|
||||
for (let i = 0; i < gap; ++i)
|
||||
newMarkers.push(gapMarkers)
|
||||
newMarkers.push(last)
|
||||
}
|
||||
return newMarkers
|
||||
}
|
||||
|
||||
// Remove spans that are empty and don't have a clearWhenEmpty
|
||||
// option of false.
|
||||
function clearEmptySpans(spans) {
|
||||
for (let i = 0; i < spans.length; ++i) {
|
||||
let span = spans[i]
|
||||
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
|
||||
spans.splice(i--, 1)
|
||||
}
|
||||
if (!spans.length) return null
|
||||
return spans
|
||||
}
|
||||
|
||||
// Used to 'clip' out readOnly ranges when making a change.
|
||||
export function removeReadOnlyRanges(doc, from, to) {
|
||||
let markers = null
|
||||
doc.iter(from.line, to.line + 1, line => {
|
||||
if (line.markedSpans) for (let i = 0; i < line.markedSpans.length; ++i) {
|
||||
let mark = line.markedSpans[i].marker
|
||||
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
|
||||
(markers || (markers = [])).push(mark)
|
||||
}
|
||||
})
|
||||
if (!markers) return null
|
||||
let parts = [{from: from, to: to}]
|
||||
for (let i = 0; i < markers.length; ++i) {
|
||||
let mk = markers[i], m = mk.find(0)
|
||||
for (let j = 0; j < parts.length; ++j) {
|
||||
let p = parts[j]
|
||||
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue
|
||||
let newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
|
||||
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
|
||||
newParts.push({from: p.from, to: m.from})
|
||||
if (dto > 0 || !mk.inclusiveRight && !dto)
|
||||
newParts.push({from: m.to, to: p.to})
|
||||
parts.splice.apply(parts, newParts)
|
||||
j += newParts.length - 3
|
||||
}
|
||||
}
|
||||
return parts
|
||||
}
|
||||
|
||||
// Connect or disconnect spans from a line.
|
||||
export function detachMarkedSpans(line) {
|
||||
let spans = line.markedSpans
|
||||
if (!spans) return
|
||||
for (let i = 0; i < spans.length; ++i)
|
||||
spans[i].marker.detachLine(line)
|
||||
line.markedSpans = null
|
||||
}
|
||||
export function attachMarkedSpans(line, spans) {
|
||||
if (!spans) return
|
||||
for (let i = 0; i < spans.length; ++i)
|
||||
spans[i].marker.attachLine(line)
|
||||
line.markedSpans = spans
|
||||
}
|
||||
|
||||
// Helpers used when computing which overlapping collapsed span
|
||||
// counts as the larger one.
|
||||
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
|
||||
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
|
||||
|
||||
// Returns a number indicating which of two overlapping collapsed
|
||||
// spans is larger (and thus includes the other). Falls back to
|
||||
// comparing ids when the spans cover exactly the same range.
|
||||
export function compareCollapsedMarkers(a, b) {
|
||||
let lenDiff = a.lines.length - b.lines.length
|
||||
if (lenDiff != 0) return lenDiff
|
||||
let aPos = a.find(), bPos = b.find()
|
||||
let fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
|
||||
if (fromCmp) return -fromCmp
|
||||
let toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
|
||||
if (toCmp) return toCmp
|
||||
return b.id - a.id
|
||||
}
|
||||
|
||||
// Find out whether a line ends or starts in a collapsed span. If
|
||||
// so, return the marker for that span.
|
||||
function collapsedSpanAtSide(line, start) {
|
||||
let sps = sawCollapsedSpans && line.markedSpans, found
|
||||
if (sps) for (let sp, i = 0; i < sps.length; ++i) {
|
||||
sp = sps[i]
|
||||
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
|
||||
(!found || compareCollapsedMarkers(found, sp.marker) < 0))
|
||||
found = sp.marker
|
||||
}
|
||||
return found
|
||||
}
|
||||
export function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
|
||||
export function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
|
||||
|
||||
export function collapsedSpanAround(line, ch) {
|
||||
let sps = sawCollapsedSpans && line.markedSpans, found
|
||||
if (sps) for (let i = 0; i < sps.length; ++i) {
|
||||
let sp = sps[i]
|
||||
if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
|
||||
(!found || compareCollapsedMarkers(found, sp.marker) < 0)) found = sp.marker
|
||||
}
|
||||
return found
|
||||
}
|
||||
|
||||
// Test whether there exists a collapsed span that partially
|
||||
// overlaps (covers the start or end, but not both) of a new span.
|
||||
// Such overlap is not allowed.
|
||||
export function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
|
||||
let line = getLine(doc, lineNo)
|
||||
let sps = sawCollapsedSpans && line.markedSpans
|
||||
if (sps) for (let i = 0; i < sps.length; ++i) {
|
||||
let sp = sps[i]
|
||||
if (!sp.marker.collapsed) continue
|
||||
let found = sp.marker.find(0)
|
||||
let fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
|
||||
let toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
|
||||
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue
|
||||
if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
|
||||
fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
// A visual line is a line as drawn on the screen. Folding, for
|
||||
// example, can cause multiple logical lines to appear on the same
|
||||
// visual line. This finds the start of the visual line that the
|
||||
// given line is part of (usually that is the line itself).
|
||||
export function visualLine(line) {
|
||||
let merged
|
||||
while (merged = collapsedSpanAtStart(line))
|
||||
line = merged.find(-1, true).line
|
||||
return line
|
||||
}
|
||||
|
||||
export function visualLineEnd(line) {
|
||||
let merged
|
||||
while (merged = collapsedSpanAtEnd(line))
|
||||
line = merged.find(1, true).line
|
||||
return line
|
||||
}
|
||||
|
||||
// Returns an array of logical lines that continue the visual line
|
||||
// started by the argument, or undefined if there are no such lines.
|
||||
export function visualLineContinued(line) {
|
||||
let merged, lines
|
||||
while (merged = collapsedSpanAtEnd(line)) {
|
||||
line = merged.find(1, true).line
|
||||
;(lines || (lines = [])).push(line)
|
||||
}
|
||||
return lines
|
||||
}
|
||||
|
||||
// Get the line number of the start of the visual line that the
|
||||
// given line number is part of.
|
||||
export function visualLineNo(doc, lineN) {
|
||||
let line = getLine(doc, lineN), vis = visualLine(line)
|
||||
if (line == vis) return lineN
|
||||
return lineNo(vis)
|
||||
}
|
||||
|
||||
// Get the line number of the start of the next visual line after
|
||||
// the given line.
|
||||
export function visualLineEndNo(doc, lineN) {
|
||||
if (lineN > doc.lastLine()) return lineN
|
||||
let line = getLine(doc, lineN), merged
|
||||
if (!lineIsHidden(doc, line)) return lineN
|
||||
while (merged = collapsedSpanAtEnd(line))
|
||||
line = merged.find(1, true).line
|
||||
return lineNo(line) + 1
|
||||
}
|
||||
|
||||
// Compute whether a line is hidden. Lines count as hidden when they
|
||||
// are part of a visual line that starts with another line, or when
|
||||
// they are entirely covered by collapsed, non-widget span.
|
||||
export function lineIsHidden(doc, line) {
|
||||
let sps = sawCollapsedSpans && line.markedSpans
|
||||
if (sps) for (let sp, i = 0; i < sps.length; ++i) {
|
||||
sp = sps[i]
|
||||
if (!sp.marker.collapsed) continue
|
||||
if (sp.from == null) return true
|
||||
if (sp.marker.widgetNode) continue
|
||||
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
|
||||
return true
|
||||
}
|
||||
}
|
||||
function lineIsHiddenInner(doc, line, span) {
|
||||
if (span.to == null) {
|
||||
let end = span.marker.find(1, true)
|
||||
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
|
||||
}
|
||||
if (span.marker.inclusiveRight && span.to == line.text.length)
|
||||
return true
|
||||
for (let sp, i = 0; i < line.markedSpans.length; ++i) {
|
||||
sp = line.markedSpans[i]
|
||||
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
|
||||
(sp.to == null || sp.to != span.from) &&
|
||||
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
|
||||
lineIsHiddenInner(doc, line, sp)) return true
|
||||
}
|
||||
}
|
||||
|
||||
// Find the height above the given line.
|
||||
export function heightAtLine(lineObj) {
|
||||
lineObj = visualLine(lineObj)
|
||||
|
||||
let h = 0, chunk = lineObj.parent
|
||||
for (let i = 0; i < chunk.lines.length; ++i) {
|
||||
let line = chunk.lines[i]
|
||||
if (line == lineObj) break
|
||||
else h += line.height
|
||||
}
|
||||
for (let p = chunk.parent; p; chunk = p, p = chunk.parent) {
|
||||
for (let i = 0; i < p.children.length; ++i) {
|
||||
let cur = p.children[i]
|
||||
if (cur == chunk) break
|
||||
else h += cur.height
|
||||
}
|
||||
}
|
||||
return h
|
||||
}
|
||||
|
||||
// Compute the character length of a line, taking into account
|
||||
// collapsed ranges (see markText) that might hide parts, and join
|
||||
// other lines onto it.
|
||||
export function lineLength(line) {
|
||||
if (line.height == 0) return 0
|
||||
let len = line.text.length, merged, cur = line
|
||||
while (merged = collapsedSpanAtStart(cur)) {
|
||||
let found = merged.find(0, true)
|
||||
cur = found.from.line
|
||||
len += found.from.ch - found.to.ch
|
||||
}
|
||||
cur = line
|
||||
while (merged = collapsedSpanAtEnd(cur)) {
|
||||
let found = merged.find(0, true)
|
||||
len -= cur.text.length - found.from.ch
|
||||
cur = found.to.line
|
||||
len += cur.text.length - found.to.ch
|
||||
}
|
||||
return len
|
||||
}
|
||||
|
||||
// Find the longest line in the document.
|
||||
export function findMaxLine(cm) {
|
||||
let d = cm.display, doc = cm.doc
|
||||
d.maxLine = getLine(doc, doc.first)
|
||||
d.maxLineLength = lineLength(d.maxLine)
|
||||
d.maxLineChanged = true
|
||||
doc.iter(line => {
|
||||
let len = lineLength(line)
|
||||
if (len > d.maxLineLength) {
|
||||
d.maxLineLength = len
|
||||
d.maxLine = line
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,85 @@
|
|||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
// Find the line object corresponding to the given line number.
|
||||
export function getLine(doc, n) {
|
||||
n -= doc.first
|
||||
if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.")
|
||||
let chunk = doc
|
||||
while (!chunk.lines) {
|
||||
for (let i = 0;; ++i) {
|
||||
let child = chunk.children[i], sz = child.chunkSize()
|
||||
if (n < sz) { chunk = child; break }
|
||||
n -= sz
|
||||
}
|
||||
}
|
||||
return chunk.lines[n]
|
||||
}
|
||||
|
||||
// Get the part of a document between two positions, as an array of
|
||||
// strings.
|
||||
export function getBetween(doc, start, end) {
|
||||
let out = [], n = start.line
|
||||
doc.iter(start.line, end.line + 1, line => {
|
||||
let text = line.text
|
||||
if (n == end.line) text = text.slice(0, end.ch)
|
||||
if (n == start.line) text = text.slice(start.ch)
|
||||
out.push(text)
|
||||
++n
|
||||
})
|
||||
return out
|
||||
}
|
||||
// Get the lines between from and to, as array of strings.
|
||||
export function getLines(doc, from, to) {
|
||||
let out = []
|
||||
doc.iter(from, to, line => { out.push(line.text) }) // iter aborts when callback returns truthy value
|
||||
return out
|
||||
}
|
||||
|
||||
// Update the height of a line, propagating the height change
|
||||
// upwards to parent nodes.
|
||||
export function updateLineHeight(line, height) {
|
||||
let diff = height - line.height
|
||||
if (diff) for (let n = line; n; n = n.parent) n.height += diff
|
||||
}
|
||||
|
||||
// Given a line object, find its line number by walking up through
|
||||
// its parent links.
|
||||
export function lineNo(line) {
|
||||
if (line.parent == null) return null
|
||||
let cur = line.parent, no = indexOf(cur.lines, line)
|
||||
for (let chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
|
||||
for (let i = 0;; ++i) {
|
||||
if (chunk.children[i] == cur) break
|
||||
no += chunk.children[i].chunkSize()
|
||||
}
|
||||
}
|
||||
return no + cur.first
|
||||
}
|
||||
|
||||
// Find the line at the given vertical position, using the height
|
||||
// information in the document tree.
|
||||
export function lineAtHeight(chunk, h) {
|
||||
let n = chunk.first
|
||||
outer: do {
|
||||
for (let i = 0; i < chunk.children.length; ++i) {
|
||||
let child = chunk.children[i], ch = child.height
|
||||
if (h < ch) { chunk = child; continue outer }
|
||||
h -= ch
|
||||
n += child.chunkSize()
|
||||
}
|
||||
return n
|
||||
} while (!chunk.lines)
|
||||
let i = 0
|
||||
for (; i < chunk.lines.length; ++i) {
|
||||
let line = chunk.lines[i], lh = line.height
|
||||
if (h < lh) break
|
||||
h -= lh
|
||||
}
|
||||
return n + i
|
||||
}
|
||||
|
||||
export function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
|
||||
|
||||
export function lineNumberFor(options, i) {
|
||||
return String(options.lineNumberFormatter(i + options.firstLineNumber))
|
||||
}
|
||||
|
|
@ -0,0 +1,700 @@
|
|||
import { buildLineContent, LineView } from "../line/line_data.js"
|
||||
import { clipPos, Pos } from "../line/pos.js"
|
||||
import { collapsedSpanAround, heightAtLine, lineIsHidden, visualLine } from "../line/spans.js"
|
||||
import { getLine, lineAtHeight, lineNo, updateLineHeight } from "../line/utils_line.js"
|
||||
import { bidiOther, getBidiPartAt, getOrder } from "../util/bidi.js"
|
||||
import { chrome, android, ie, ie_version } from "../util/browser.js"
|
||||
import { elt, removeChildren, range, removeChildrenAndAdd } from "../util/dom.js"
|
||||
import { e_target } from "../util/event.js"
|
||||
import { hasBadZoomedRects } from "../util/feature_detection.js"
|
||||
import { countColumn, findFirst, isExtendingChar, scrollerGap, skipExtendingChars } from "../util/misc.js"
|
||||
import { updateLineForChanges } from "../display/update_line.js"
|
||||
|
||||
import { widgetHeight } from "./widgets.js"
|
||||
|
||||
// POSITION MEASUREMENT
|
||||
|
||||
export function paddingTop(display) {return display.lineSpace.offsetTop}
|
||||
export function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
|
||||
export function paddingH(display) {
|
||||
if (display.cachedPaddingH) return display.cachedPaddingH
|
||||
let e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"))
|
||||
let style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
|
||||
let data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
|
||||
if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data
|
||||
return data
|
||||
}
|
||||
|
||||
export function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
|
||||
export function displayWidth(cm) {
|
||||
return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
|
||||
}
|
||||
export function displayHeight(cm) {
|
||||
return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
|
||||
}
|
||||
|
||||
// Ensure the lineView.wrapping.heights array is populated. This is
|
||||
// an array of bottom offsets for the lines that make up a drawn
|
||||
// line. When lineWrapping is on, there might be more than one
|
||||
// height.
|
||||
function ensureLineHeights(cm, lineView, rect) {
|
||||
let wrapping = cm.options.lineWrapping
|
||||
let curWidth = wrapping && displayWidth(cm)
|
||||
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
|
||||
let heights = lineView.measure.heights = []
|
||||
if (wrapping) {
|
||||
lineView.measure.width = curWidth
|
||||
let rects = lineView.text.firstChild.getClientRects()
|
||||
for (let i = 0; i < rects.length - 1; i++) {
|
||||
let cur = rects[i], next = rects[i + 1]
|
||||
if (Math.abs(cur.bottom - next.bottom) > 2)
|
||||
heights.push((cur.bottom + next.top) / 2 - rect.top)
|
||||
}
|
||||
}
|
||||
heights.push(rect.bottom - rect.top)
|
||||
}
|
||||
}
|
||||
|
||||
// Find a line map (mapping character offsets to text nodes) and a
|
||||
// measurement cache for the given line number. (A line view might
|
||||
// contain multiple lines when collapsed ranges are present.)
|
||||
export function mapFromLineView(lineView, line, lineN) {
|
||||
if (lineView.line == line)
|
||||
return {map: lineView.measure.map, cache: lineView.measure.cache}
|
||||
for (let i = 0; i < lineView.rest.length; i++)
|
||||
if (lineView.rest[i] == line)
|
||||
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}
|
||||
for (let i = 0; i < lineView.rest.length; i++)
|
||||
if (lineNo(lineView.rest[i]) > lineN)
|
||||
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}
|
||||
}
|
||||
|
||||
// Render a line into the hidden node display.externalMeasured. Used
|
||||
// when measurement is needed for a line that's not in the viewport.
|
||||
function updateExternalMeasurement(cm, line) {
|
||||
line = visualLine(line)
|
||||
let lineN = lineNo(line)
|
||||
let view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
|
||||
view.lineN = lineN
|
||||
let built = view.built = buildLineContent(cm, view)
|
||||
view.text = built.pre
|
||||
removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
|
||||
return view
|
||||
}
|
||||
|
||||
// Get a {top, bottom, left, right} box (in line-local coordinates)
|
||||
// for a given character.
|
||||
export function measureChar(cm, line, ch, bias) {
|
||||
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
|
||||
}
|
||||
|
||||
// Find a line view that corresponds to the given line number.
|
||||
export function findViewForLine(cm, lineN) {
|
||||
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
|
||||
return cm.display.view[findViewIndex(cm, lineN)]
|
||||
let ext = cm.display.externalMeasured
|
||||
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
|
||||
return ext
|
||||
}
|
||||
|
||||
// Measurement can be split in two steps, the set-up work that
|
||||
// applies to the whole line, and the measurement of the actual
|
||||
// character. Functions like coordsChar, that need to do a lot of
|
||||
// measurements in a row, can thus ensure that the set-up work is
|
||||
// only done once.
|
||||
export function prepareMeasureForLine(cm, line) {
|
||||
let lineN = lineNo(line)
|
||||
let view = findViewForLine(cm, lineN)
|
||||
if (view && !view.text) {
|
||||
view = null
|
||||
} else if (view && view.changes) {
|
||||
updateLineForChanges(cm, view, lineN, getDimensions(cm))
|
||||
cm.curOp.forceUpdate = true
|
||||
}
|
||||
if (!view)
|
||||
view = updateExternalMeasurement(cm, line)
|
||||
|
||||
let info = mapFromLineView(view, line, lineN)
|
||||
return {
|
||||
line: line, view: view, rect: null,
|
||||
map: info.map, cache: info.cache, before: info.before,
|
||||
hasHeights: false
|
||||
}
|
||||
}
|
||||
|
||||
// Given a prepared measurement object, measures the position of an
|
||||
// actual character (or fetches it from the cache).
|
||||
export function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
|
||||
if (prepared.before) ch = -1
|
||||
let key = ch + (bias || ""), found
|
||||
if (prepared.cache.hasOwnProperty(key)) {
|
||||
found = prepared.cache[key]
|
||||
} else {
|
||||
if (!prepared.rect)
|
||||
prepared.rect = prepared.view.text.getBoundingClientRect()
|
||||
if (!prepared.hasHeights) {
|
||||
ensureLineHeights(cm, prepared.view, prepared.rect)
|
||||
prepared.hasHeights = true
|
||||
}
|
||||
found = measureCharInner(cm, prepared, ch, bias)
|
||||
if (!found.bogus) prepared.cache[key] = found
|
||||
}
|
||||
return {left: found.left, right: found.right,
|
||||
top: varHeight ? found.rtop : found.top,
|
||||
bottom: varHeight ? found.rbottom : found.bottom}
|
||||
}
|
||||
|
||||
let nullRect = {left: 0, right: 0, top: 0, bottom: 0}
|
||||
|
||||
export function nodeAndOffsetInLineMap(map, ch, bias) {
|
||||
let node, start, end, collapse, mStart, mEnd
|
||||
// First, search the line map for the text node corresponding to,
|
||||
// or closest to, the target character.
|
||||
for (let i = 0; i < map.length; i += 3) {
|
||||
mStart = map[i]
|
||||
mEnd = map[i + 1]
|
||||
if (ch < mStart) {
|
||||
start = 0; end = 1
|
||||
collapse = "left"
|
||||
} else if (ch < mEnd) {
|
||||
start = ch - mStart
|
||||
end = start + 1
|
||||
} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
|
||||
end = mEnd - mStart
|
||||
start = end - 1
|
||||
if (ch >= mEnd) collapse = "right"
|
||||
}
|
||||
if (start != null) {
|
||||
node = map[i + 2]
|
||||
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
|
||||
collapse = bias
|
||||
if (bias == "left" && start == 0)
|
||||
while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
|
||||
node = map[(i -= 3) + 2]
|
||||
collapse = "left"
|
||||
}
|
||||
if (bias == "right" && start == mEnd - mStart)
|
||||
while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
|
||||
node = map[(i += 3) + 2]
|
||||
collapse = "right"
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
|
||||
}
|
||||
|
||||
function getUsefulRect(rects, bias) {
|
||||
let rect = nullRect
|
||||
if (bias == "left") for (let i = 0; i < rects.length; i++) {
|
||||
if ((rect = rects[i]).left != rect.right) break
|
||||
} else for (let i = rects.length - 1; i >= 0; i--) {
|
||||
if ((rect = rects[i]).left != rect.right) break
|
||||
}
|
||||
return rect
|
||||
}
|
||||
|
||||
function measureCharInner(cm, prepared, ch, bias) {
|
||||
let place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
|
||||
let node = place.node, start = place.start, end = place.end, collapse = place.collapse
|
||||
|
||||
let rect
|
||||
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
|
||||
for (let i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
|
||||
while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start
|
||||
while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end
|
||||
if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
|
||||
rect = node.parentNode.getBoundingClientRect()
|
||||
else
|
||||
rect = getUsefulRect(range(node, start, end).getClientRects(), bias)
|
||||
if (rect.left || rect.right || start == 0) break
|
||||
end = start
|
||||
start = start - 1
|
||||
collapse = "right"
|
||||
}
|
||||
if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect)
|
||||
} else { // If it is a widget, simply get the box for the whole widget.
|
||||
if (start > 0) collapse = bias = "right"
|
||||
let rects
|
||||
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
|
||||
rect = rects[bias == "right" ? rects.length - 1 : 0]
|
||||
else
|
||||
rect = node.getBoundingClientRect()
|
||||
}
|
||||
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
|
||||
let rSpan = node.parentNode.getClientRects()[0]
|
||||
if (rSpan)
|
||||
rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}
|
||||
else
|
||||
rect = nullRect
|
||||
}
|
||||
|
||||
let rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
|
||||
let mid = (rtop + rbot) / 2
|
||||
let heights = prepared.view.measure.heights
|
||||
let i = 0
|
||||
for (; i < heights.length - 1; i++)
|
||||
if (mid < heights[i]) break
|
||||
let top = i ? heights[i - 1] : 0, bot = heights[i]
|
||||
let result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
|
||||
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
|
||||
top: top, bottom: bot}
|
||||
if (!rect.left && !rect.right) result.bogus = true
|
||||
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
// Work around problem with bounding client rects on ranges being
|
||||
// returned incorrectly when zoomed on IE10 and below.
|
||||
function maybeUpdateRectForZooming(measure, rect) {
|
||||
if (!window.screen || screen.logicalXDPI == null ||
|
||||
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
|
||||
return rect
|
||||
let scaleX = screen.logicalXDPI / screen.deviceXDPI
|
||||
let scaleY = screen.logicalYDPI / screen.deviceYDPI
|
||||
return {left: rect.left * scaleX, right: rect.right * scaleX,
|
||||
top: rect.top * scaleY, bottom: rect.bottom * scaleY}
|
||||
}
|
||||
|
||||
export function clearLineMeasurementCacheFor(lineView) {
|
||||
if (lineView.measure) {
|
||||
lineView.measure.cache = {}
|
||||
lineView.measure.heights = null
|
||||
if (lineView.rest) for (let i = 0; i < lineView.rest.length; i++)
|
||||
lineView.measure.caches[i] = {}
|
||||
}
|
||||
}
|
||||
|
||||
export function clearLineMeasurementCache(cm) {
|
||||
cm.display.externalMeasure = null
|
||||
removeChildren(cm.display.lineMeasure)
|
||||
for (let i = 0; i < cm.display.view.length; i++)
|
||||
clearLineMeasurementCacheFor(cm.display.view[i])
|
||||
}
|
||||
|
||||
export function clearCaches(cm) {
|
||||
clearLineMeasurementCache(cm)
|
||||
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
|
||||
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true
|
||||
cm.display.lineNumChars = null
|
||||
}
|
||||
|
||||
function pageScrollX() {
|
||||
// Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
|
||||
// which causes page_Offset and bounding client rects to use
|
||||
// different reference viewports and invalidate our calculations.
|
||||
if (chrome && android) return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft))
|
||||
return window.pageXOffset || (document.documentElement || document.body).scrollLeft
|
||||
}
|
||||
function pageScrollY() {
|
||||
if (chrome && android) return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop))
|
||||
return window.pageYOffset || (document.documentElement || document.body).scrollTop
|
||||
}
|
||||
|
||||
function widgetTopHeight(lineObj) {
|
||||
let height = 0
|
||||
if (lineObj.widgets) for (let i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above)
|
||||
height += widgetHeight(lineObj.widgets[i])
|
||||
return height
|
||||
}
|
||||
|
||||
// Converts a {top, bottom, left, right} box from line-local
|
||||
// coordinates into another coordinate system. Context may be one of
|
||||
// "line", "div" (display.lineDiv), "local"./null (editor), "window",
|
||||
// or "page".
|
||||
export function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
|
||||
if (!includeWidgets) {
|
||||
let height = widgetTopHeight(lineObj)
|
||||
rect.top += height; rect.bottom += height
|
||||
}
|
||||
if (context == "line") return rect
|
||||
if (!context) context = "local"
|
||||
let yOff = heightAtLine(lineObj)
|
||||
if (context == "local") yOff += paddingTop(cm.display)
|
||||
else yOff -= cm.display.viewOffset
|
||||
if (context == "page" || context == "window") {
|
||||
let lOff = cm.display.lineSpace.getBoundingClientRect()
|
||||
yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
|
||||
let xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
|
||||
rect.left += xOff; rect.right += xOff
|
||||
}
|
||||
rect.top += yOff; rect.bottom += yOff
|
||||
return rect
|
||||
}
|
||||
|
||||
// Coverts a box from "div" coords to another coordinate system.
|
||||
// Context may be "window", "page", "div", or "local"./null.
|
||||
export function fromCoordSystem(cm, coords, context) {
|
||||
if (context == "div") return coords
|
||||
let left = coords.left, top = coords.top
|
||||
// First move into "page" coordinate system
|
||||
if (context == "page") {
|
||||
left -= pageScrollX()
|
||||
top -= pageScrollY()
|
||||
} else if (context == "local" || !context) {
|
||||
let localBox = cm.display.sizer.getBoundingClientRect()
|
||||
left += localBox.left
|
||||
top += localBox.top
|
||||
}
|
||||
|
||||
let lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
|
||||
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
|
||||
}
|
||||
|
||||
export function charCoords(cm, pos, context, lineObj, bias) {
|
||||
if (!lineObj) lineObj = getLine(cm.doc, pos.line)
|
||||
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
|
||||
}
|
||||
|
||||
// Returns a box for a given cursor position, which may have an
|
||||
// 'other' property containing the position of the secondary cursor
|
||||
// on a bidi boundary.
|
||||
// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
|
||||
// and after `char - 1` in writing order of `char - 1`
|
||||
// A cursor Pos(line, char, "after") is on the same visual line as `char`
|
||||
// and before `char` in writing order of `char`
|
||||
// Examples (upper-case letters are RTL, lower-case are LTR):
|
||||
// Pos(0, 1, ...)
|
||||
// before after
|
||||
// ab a|b a|b
|
||||
// aB a|B aB|
|
||||
// Ab |Ab A|b
|
||||
// AB B|A B|A
|
||||
// Every position after the last character on a line is considered to stick
|
||||
// to the last character on the line.
|
||||
export function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
|
||||
lineObj = lineObj || getLine(cm.doc, pos.line)
|
||||
if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj)
|
||||
function get(ch, right) {
|
||||
let m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
|
||||
if (right) m.left = m.right; else m.right = m.left
|
||||
return intoCoordSystem(cm, lineObj, m, context)
|
||||
}
|
||||
let order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky
|
||||
if (ch >= lineObj.text.length) {
|
||||
ch = lineObj.text.length
|
||||
sticky = "before"
|
||||
} else if (ch <= 0) {
|
||||
ch = 0
|
||||
sticky = "after"
|
||||
}
|
||||
if (!order) return get(sticky == "before" ? ch - 1 : ch, sticky == "before")
|
||||
|
||||
function getBidi(ch, partPos, invert) {
|
||||
let part = order[partPos], right = part.level == 1
|
||||
return get(invert ? ch - 1 : ch, right != invert)
|
||||
}
|
||||
let partPos = getBidiPartAt(order, ch, sticky)
|
||||
let other = bidiOther
|
||||
let val = getBidi(ch, partPos, sticky == "before")
|
||||
if (other != null) val.other = getBidi(ch, other, sticky != "before")
|
||||
return val
|
||||
}
|
||||
|
||||
// Used to cheaply estimate the coordinates for a position. Used for
|
||||
// intermediate scroll updates.
|
||||
export function estimateCoords(cm, pos) {
|
||||
let left = 0
|
||||
pos = clipPos(cm.doc, pos)
|
||||
if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch
|
||||
let lineObj = getLine(cm.doc, pos.line)
|
||||
let top = heightAtLine(lineObj) + paddingTop(cm.display)
|
||||
return {left: left, right: left, top: top, bottom: top + lineObj.height}
|
||||
}
|
||||
|
||||
// Positions returned by coordsChar contain some extra information.
|
||||
// xRel is the relative x position of the input coordinates compared
|
||||
// to the found position (so xRel > 0 means the coordinates are to
|
||||
// the right of the character position, for example). When outside
|
||||
// is true, that means the coordinates lie outside the line's
|
||||
// vertical range.
|
||||
function PosWithInfo(line, ch, sticky, outside, xRel) {
|
||||
let pos = Pos(line, ch, sticky)
|
||||
pos.xRel = xRel
|
||||
if (outside) pos.outside = outside
|
||||
return pos
|
||||
}
|
||||
|
||||
// Compute the character position closest to the given coordinates.
|
||||
// Input must be lineSpace-local ("div" coordinate system).
|
||||
export function coordsChar(cm, x, y) {
|
||||
let doc = cm.doc
|
||||
y += cm.display.viewOffset
|
||||
if (y < 0) return PosWithInfo(doc.first, 0, null, -1, -1)
|
||||
let lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
|
||||
if (lineN > last)
|
||||
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1)
|
||||
if (x < 0) x = 0
|
||||
|
||||
let lineObj = getLine(doc, lineN)
|
||||
for (;;) {
|
||||
let found = coordsCharInner(cm, lineObj, lineN, x, y)
|
||||
let collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0))
|
||||
if (!collapsed) return found
|
||||
let rangeEnd = collapsed.find(1)
|
||||
if (rangeEnd.line == lineN) return rangeEnd
|
||||
lineObj = getLine(doc, lineN = rangeEnd.line)
|
||||
}
|
||||
}
|
||||
|
||||
function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
|
||||
y -= widgetTopHeight(lineObj)
|
||||
let end = lineObj.text.length
|
||||
let begin = findFirst(ch => measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y, end, 0)
|
||||
end = findFirst(ch => measureCharPrepared(cm, preparedMeasure, ch).top > y, begin, end)
|
||||
return {begin, end}
|
||||
}
|
||||
|
||||
export function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
|
||||
if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj)
|
||||
let targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top
|
||||
return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
|
||||
}
|
||||
|
||||
// Returns true if the given side of a box is after the given
|
||||
// coordinates, in top-to-bottom, left-to-right order.
|
||||
function boxIsAfter(box, x, y, left) {
|
||||
return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
|
||||
}
|
||||
|
||||
function coordsCharInner(cm, lineObj, lineNo, x, y) {
|
||||
// Move y into line-local coordinate space
|
||||
y -= heightAtLine(lineObj)
|
||||
let preparedMeasure = prepareMeasureForLine(cm, lineObj)
|
||||
// When directly calling `measureCharPrepared`, we have to adjust
|
||||
// for the widgets at this line.
|
||||
let widgetHeight = widgetTopHeight(lineObj)
|
||||
let begin = 0, end = lineObj.text.length, ltr = true
|
||||
|
||||
let order = getOrder(lineObj, cm.doc.direction)
|
||||
// If the line isn't plain left-to-right text, first figure out
|
||||
// which bidi section the coordinates fall into.
|
||||
if (order) {
|
||||
let part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
|
||||
(cm, lineObj, lineNo, preparedMeasure, order, x, y)
|
||||
ltr = part.level != 1
|
||||
// The awkward -1 offsets are needed because findFirst (called
|
||||
// on these below) will treat its first bound as inclusive,
|
||||
// second as exclusive, but we want to actually address the
|
||||
// characters in the part's range
|
||||
begin = ltr ? part.from : part.to - 1
|
||||
end = ltr ? part.to : part.from - 1
|
||||
}
|
||||
|
||||
// A binary search to find the first character whose bounding box
|
||||
// starts after the coordinates. If we run across any whose box wrap
|
||||
// the coordinates, store that.
|
||||
let chAround = null, boxAround = null
|
||||
let ch = findFirst(ch => {
|
||||
let box = measureCharPrepared(cm, preparedMeasure, ch)
|
||||
box.top += widgetHeight; box.bottom += widgetHeight
|
||||
if (!boxIsAfter(box, x, y, false)) return false
|
||||
if (box.top <= y && box.left <= x) {
|
||||
chAround = ch
|
||||
boxAround = box
|
||||
}
|
||||
return true
|
||||
}, begin, end)
|
||||
|
||||
let baseX, sticky, outside = false
|
||||
// If a box around the coordinates was found, use that
|
||||
if (boxAround) {
|
||||
// Distinguish coordinates nearer to the left or right side of the box
|
||||
let atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr
|
||||
ch = chAround + (atStart ? 0 : 1)
|
||||
sticky = atStart ? "after" : "before"
|
||||
baseX = atLeft ? boxAround.left : boxAround.right
|
||||
} else {
|
||||
// (Adjust for extended bound, if necessary.)
|
||||
if (!ltr && (ch == end || ch == begin)) ch++
|
||||
// To determine which side to associate with, get the box to the
|
||||
// left of the character and compare it's vertical position to the
|
||||
// coordinates
|
||||
sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
|
||||
(measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
|
||||
"after" : "before"
|
||||
// Now get accurate coordinates for this place, in order to get a
|
||||
// base X position
|
||||
let coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure)
|
||||
baseX = coords.left
|
||||
outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0
|
||||
}
|
||||
|
||||
ch = skipExtendingChars(lineObj.text, ch, 1)
|
||||
return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
|
||||
}
|
||||
|
||||
function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
|
||||
// Bidi parts are sorted left-to-right, and in a non-line-wrapping
|
||||
// situation, we can take this ordering to correspond to the visual
|
||||
// ordering. This finds the first part whose end is after the given
|
||||
// coordinates.
|
||||
let index = findFirst(i => {
|
||||
let part = order[i], ltr = part.level != 1
|
||||
return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
|
||||
"line", lineObj, preparedMeasure), x, y, true)
|
||||
}, 0, order.length - 1)
|
||||
let part = order[index]
|
||||
// If this isn't the first part, the part's start is also after
|
||||
// the coordinates, and the coordinates aren't on the same line as
|
||||
// that start, move one part back.
|
||||
if (index > 0) {
|
||||
let ltr = part.level != 1
|
||||
let start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
|
||||
"line", lineObj, preparedMeasure)
|
||||
if (boxIsAfter(start, x, y, true) && start.top > y)
|
||||
part = order[index - 1]
|
||||
}
|
||||
return part
|
||||
}
|
||||
|
||||
function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
|
||||
// In a wrapped line, rtl text on wrapping boundaries can do things
|
||||
// that don't correspond to the ordering in our `order` array at
|
||||
// all, so a binary search doesn't work, and we want to return a
|
||||
// part that only spans one line so that the binary search in
|
||||
// coordsCharInner is safe. As such, we first find the extent of the
|
||||
// wrapped line, and then do a flat search in which we discard any
|
||||
// spans that aren't on the line.
|
||||
let {begin, end} = wrappedLineExtent(cm, lineObj, preparedMeasure, y)
|
||||
if (/\s/.test(lineObj.text.charAt(end - 1))) end--
|
||||
let part = null, closestDist = null
|
||||
for (let i = 0; i < order.length; i++) {
|
||||
let p = order[i]
|
||||
if (p.from >= end || p.to <= begin) continue
|
||||
let ltr = p.level != 1
|
||||
let endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right
|
||||
// Weigh against spans ending before this, so that they are only
|
||||
// picked if nothing ends after
|
||||
let dist = endX < x ? x - endX + 1e9 : endX - x
|
||||
if (!part || closestDist > dist) {
|
||||
part = p
|
||||
closestDist = dist
|
||||
}
|
||||
}
|
||||
if (!part) part = order[order.length - 1]
|
||||
// Clip the part to the wrapped line.
|
||||
if (part.from < begin) part = {from: begin, to: part.to, level: part.level}
|
||||
if (part.to > end) part = {from: part.from, to: end, level: part.level}
|
||||
return part
|
||||
}
|
||||
|
||||
let measureText
|
||||
// Compute the default text height.
|
||||
export function textHeight(display) {
|
||||
if (display.cachedTextHeight != null) return display.cachedTextHeight
|
||||
if (measureText == null) {
|
||||
measureText = elt("pre", null, "CodeMirror-line-like")
|
||||
// Measure a bunch of lines, for browsers that compute
|
||||
// fractional heights.
|
||||
for (let i = 0; i < 49; ++i) {
|
||||
measureText.appendChild(document.createTextNode("x"))
|
||||
measureText.appendChild(elt("br"))
|
||||
}
|
||||
measureText.appendChild(document.createTextNode("x"))
|
||||
}
|
||||
removeChildrenAndAdd(display.measure, measureText)
|
||||
let height = measureText.offsetHeight / 50
|
||||
if (height > 3) display.cachedTextHeight = height
|
||||
removeChildren(display.measure)
|
||||
return height || 1
|
||||
}
|
||||
|
||||
// Compute the default character width.
|
||||
export function charWidth(display) {
|
||||
if (display.cachedCharWidth != null) return display.cachedCharWidth
|
||||
let anchor = elt("span", "xxxxxxxxxx")
|
||||
let pre = elt("pre", [anchor], "CodeMirror-line-like")
|
||||
removeChildrenAndAdd(display.measure, pre)
|
||||
let rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
|
||||
if (width > 2) display.cachedCharWidth = width
|
||||
return width || 10
|
||||
}
|
||||
|
||||
// Do a bulk-read of the DOM positions and sizes needed to draw the
|
||||
// view, so that we don't interleave reading and writing to the DOM.
|
||||
export function getDimensions(cm) {
|
||||
let d = cm.display, left = {}, width = {}
|
||||
let gutterLeft = d.gutters.clientLeft
|
||||
for (let n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
|
||||
let id = cm.display.gutterSpecs[i].className
|
||||
left[id] = n.offsetLeft + n.clientLeft + gutterLeft
|
||||
width[id] = n.clientWidth
|
||||
}
|
||||
return {fixedPos: compensateForHScroll(d),
|
||||
gutterTotalWidth: d.gutters.offsetWidth,
|
||||
gutterLeft: left,
|
||||
gutterWidth: width,
|
||||
wrapperWidth: d.wrapper.clientWidth}
|
||||
}
|
||||
|
||||
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
|
||||
// but using getBoundingClientRect to get a sub-pixel-accurate
|
||||
// result.
|
||||
export function compensateForHScroll(display) {
|
||||
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
|
||||
}
|
||||
|
||||
// Returns a function that estimates the height of a line, to use as
|
||||
// first approximation until the line becomes visible (and is thus
|
||||
// properly measurable).
|
||||
export function estimateHeight(cm) {
|
||||
let th = textHeight(cm.display), wrapping = cm.options.lineWrapping
|
||||
let perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
|
||||
return line => {
|
||||
if (lineIsHidden(cm.doc, line)) return 0
|
||||
|
||||
let widgetsHeight = 0
|
||||
if (line.widgets) for (let i = 0; i < line.widgets.length; i++) {
|
||||
if (line.widgets[i].height) widgetsHeight += line.widgets[i].height
|
||||
}
|
||||
|
||||
if (wrapping)
|
||||
return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th
|
||||
else
|
||||
return widgetsHeight + th
|
||||
}
|
||||
}
|
||||
|
||||
export function estimateLineHeights(cm) {
|
||||
let doc = cm.doc, est = estimateHeight(cm)
|
||||
doc.iter(line => {
|
||||
let estHeight = est(line)
|
||||
if (estHeight != line.height) updateLineHeight(line, estHeight)
|
||||
})
|
||||
}
|
||||
|
||||
// Given a mouse event, find the corresponding position. If liberal
|
||||
// is false, it checks whether a gutter or scrollbar was clicked,
|
||||
// and returns null if it was. forRect is used by rectangular
|
||||
// selections, and tries to estimate a character position even for
|
||||
// coordinates beyond the right of the text.
|
||||
export function posFromMouse(cm, e, liberal, forRect) {
|
||||
let display = cm.display
|
||||
if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null
|
||||
|
||||
let x, y, space = display.lineSpace.getBoundingClientRect()
|
||||
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
|
||||
try { x = e.clientX - space.left; y = e.clientY - space.top }
|
||||
catch (e) { return null }
|
||||
let coords = coordsChar(cm, x, y), line
|
||||
if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
|
||||
let colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
|
||||
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
|
||||
}
|
||||
return coords
|
||||
}
|
||||
|
||||
// Find the view element corresponding to a given line. Return null
|
||||
// when the line isn't visible.
|
||||
export function findViewIndex(cm, n) {
|
||||
if (n >= cm.display.viewTo) return null
|
||||
n -= cm.display.viewFrom
|
||||
if (n < 0) return null
|
||||
let view = cm.display.view
|
||||
for (let i = 0; i < view.length; i++) {
|
||||
n -= view[i].size
|
||||
if (n < 0) return i
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
import { contains, elt, removeChildrenAndAdd } from "../util/dom.js"
|
||||
import { e_target } from "../util/event.js"
|
||||
|
||||
export function widgetHeight(widget) {
|
||||
if (widget.height != null) return widget.height
|
||||
let cm = widget.doc.cm
|
||||
if (!cm) return 0
|
||||
if (!contains(document.body, widget.node)) {
|
||||
let parentStyle = "position: relative;"
|
||||
if (widget.coverGutter)
|
||||
parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"
|
||||
if (widget.noHScroll)
|
||||
parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"
|
||||
removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
|
||||
}
|
||||
return widget.height = widget.node.parentNode.offsetHeight
|
||||
}
|
||||
|
||||
// Return true when the given mouse event happened in a widget
|
||||
export function eventInWidget(display, e) {
|
||||
for (let n = e_target(e); n != display.wrapper; n = n.parentNode) {
|
||||
if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
|
||||
(n.parentNode == display.sizer && n != display.mover))
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,435 @@
|
|||
import CodeMirror from "../edit/CodeMirror.js"
|
||||
import { docMethodOp } from "../display/operations.js"
|
||||
import { Line } from "../line/line_data.js"
|
||||
import { clipPos, clipPosArray, Pos } from "../line/pos.js"
|
||||
import { visualLine } from "../line/spans.js"
|
||||
import { getBetween, getLine, getLines, isLine, lineNo } from "../line/utils_line.js"
|
||||
import { classTest } from "../util/dom.js"
|
||||
import { splitLinesAuto } from "../util/feature_detection.js"
|
||||
import { createObj, map, isEmpty, sel_dontScroll } from "../util/misc.js"
|
||||
import { ensureCursorVisible, scrollToCoords } from "../display/scrolling.js"
|
||||
|
||||
import { changeLine, makeChange, makeChangeFromHistory, replaceRange } from "./changes.js"
|
||||
import { computeReplacedSel } from "./change_measurement.js"
|
||||
import { BranchChunk, LeafChunk } from "./chunk.js"
|
||||
import { directionChanged, linkedDocs, updateDoc } from "./document_data.js"
|
||||
import { copyHistoryArray, History } from "./history.js"
|
||||
import { addLineWidget } from "./line_widget.js"
|
||||
import { copySharedMarkers, detachSharedMarkers, findSharedMarkers, markText } from "./mark_text.js"
|
||||
import { normalizeSelection, Range, simpleSelection } from "./selection.js"
|
||||
import { extendSelection, extendSelections, setSelection, setSelectionReplaceHistory, setSimpleSelection } from "./selection_updates.js"
|
||||
|
||||
let nextDocId = 0
|
||||
let Doc = function(text, mode, firstLine, lineSep, direction) {
|
||||
if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep, direction)
|
||||
if (firstLine == null) firstLine = 0
|
||||
|
||||
BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
|
||||
this.first = firstLine
|
||||
this.scrollTop = this.scrollLeft = 0
|
||||
this.cantEdit = false
|
||||
this.cleanGeneration = 1
|
||||
this.modeFrontier = this.highlightFrontier = firstLine
|
||||
let start = Pos(firstLine, 0)
|
||||
this.sel = simpleSelection(start)
|
||||
this.history = new History(null)
|
||||
this.id = ++nextDocId
|
||||
this.modeOption = mode
|
||||
this.lineSep = lineSep
|
||||
this.direction = (direction == "rtl") ? "rtl" : "ltr"
|
||||
this.extend = false
|
||||
|
||||
if (typeof text == "string") text = this.splitLines(text)
|
||||
updateDoc(this, {from: start, to: start, text: text})
|
||||
setSelection(this, simpleSelection(start), sel_dontScroll)
|
||||
}
|
||||
|
||||
Doc.prototype = createObj(BranchChunk.prototype, {
|
||||
constructor: Doc,
|
||||
// Iterate over the document. Supports two forms -- with only one
|
||||
// argument, it calls that for each line in the document. With
|
||||
// three, it iterates over the range given by the first two (with
|
||||
// the second being non-inclusive).
|
||||
iter: function(from, to, op) {
|
||||
if (op) this.iterN(from - this.first, to - from, op)
|
||||
else this.iterN(this.first, this.first + this.size, from)
|
||||
},
|
||||
|
||||
// Non-public interface for adding and removing lines.
|
||||
insert: function(at, lines) {
|
||||
let height = 0
|
||||
for (let i = 0; i < lines.length; ++i) height += lines[i].height
|
||||
this.insertInner(at - this.first, lines, height)
|
||||
},
|
||||
remove: function(at, n) { this.removeInner(at - this.first, n) },
|
||||
|
||||
// From here, the methods are part of the public interface. Most
|
||||
// are also available from CodeMirror (editor) instances.
|
||||
|
||||
getValue: function(lineSep) {
|
||||
let lines = getLines(this, this.first, this.first + this.size)
|
||||
if (lineSep === false) return lines
|
||||
return lines.join(lineSep || this.lineSeparator())
|
||||
},
|
||||
setValue: docMethodOp(function(code) {
|
||||
let top = Pos(this.first, 0), last = this.first + this.size - 1
|
||||
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
|
||||
text: this.splitLines(code), origin: "setValue", full: true}, true)
|
||||
if (this.cm) scrollToCoords(this.cm, 0, 0)
|
||||
setSelection(this, simpleSelection(top), sel_dontScroll)
|
||||
}),
|
||||
replaceRange: function(code, from, to, origin) {
|
||||
from = clipPos(this, from)
|
||||
to = to ? clipPos(this, to) : from
|
||||
replaceRange(this, code, from, to, origin)
|
||||
},
|
||||
getRange: function(from, to, lineSep) {
|
||||
let lines = getBetween(this, clipPos(this, from), clipPos(this, to))
|
||||
if (lineSep === false) return lines
|
||||
return lines.join(lineSep || this.lineSeparator())
|
||||
},
|
||||
|
||||
getLine: function(line) {let l = this.getLineHandle(line); return l && l.text},
|
||||
|
||||
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line)},
|
||||
getLineNumber: function(line) {return lineNo(line)},
|
||||
|
||||
getLineHandleVisualStart: function(line) {
|
||||
if (typeof line == "number") line = getLine(this, line)
|
||||
return visualLine(line)
|
||||
},
|
||||
|
||||
lineCount: function() {return this.size},
|
||||
firstLine: function() {return this.first},
|
||||
lastLine: function() {return this.first + this.size - 1},
|
||||
|
||||
clipPos: function(pos) {return clipPos(this, pos)},
|
||||
|
||||
getCursor: function(start) {
|
||||
let range = this.sel.primary(), pos
|
||||
if (start == null || start == "head") pos = range.head
|
||||
else if (start == "anchor") pos = range.anchor
|
||||
else if (start == "end" || start == "to" || start === false) pos = range.to()
|
||||
else pos = range.from()
|
||||
return pos
|
||||
},
|
||||
listSelections: function() { return this.sel.ranges },
|
||||
somethingSelected: function() {return this.sel.somethingSelected()},
|
||||
|
||||
setCursor: docMethodOp(function(line, ch, options) {
|
||||
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
|
||||
}),
|
||||
setSelection: docMethodOp(function(anchor, head, options) {
|
||||
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
|
||||
}),
|
||||
extendSelection: docMethodOp(function(head, other, options) {
|
||||
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
|
||||
}),
|
||||
extendSelections: docMethodOp(function(heads, options) {
|
||||
extendSelections(this, clipPosArray(this, heads), options)
|
||||
}),
|
||||
extendSelectionsBy: docMethodOp(function(f, options) {
|
||||
let heads = map(this.sel.ranges, f)
|
||||
extendSelections(this, clipPosArray(this, heads), options)
|
||||
}),
|
||||
setSelections: docMethodOp(function(ranges, primary, options) {
|
||||
if (!ranges.length) return
|
||||
let out = []
|
||||
for (let i = 0; i < ranges.length; i++)
|
||||
out[i] = new Range(clipPos(this, ranges[i].anchor),
|
||||
clipPos(this, ranges[i].head))
|
||||
if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex)
|
||||
setSelection(this, normalizeSelection(this.cm, out, primary), options)
|
||||
}),
|
||||
addSelection: docMethodOp(function(anchor, head, options) {
|
||||
let ranges = this.sel.ranges.slice(0)
|
||||
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
|
||||
setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options)
|
||||
}),
|
||||
|
||||
getSelection: function(lineSep) {
|
||||
let ranges = this.sel.ranges, lines
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
let sel = getBetween(this, ranges[i].from(), ranges[i].to())
|
||||
lines = lines ? lines.concat(sel) : sel
|
||||
}
|
||||
if (lineSep === false) return lines
|
||||
else return lines.join(lineSep || this.lineSeparator())
|
||||
},
|
||||
getSelections: function(lineSep) {
|
||||
let parts = [], ranges = this.sel.ranges
|
||||
for (let i = 0; i < ranges.length; i++) {
|
||||
let sel = getBetween(this, ranges[i].from(), ranges[i].to())
|
||||
if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator())
|
||||
parts[i] = sel
|
||||
}
|
||||
return parts
|
||||
},
|
||||
replaceSelection: function(code, collapse, origin) {
|
||||
let dup = []
|
||||
for (let i = 0; i < this.sel.ranges.length; i++)
|
||||
dup[i] = code
|
||||
this.replaceSelections(dup, collapse, origin || "+input")
|
||||
},
|
||||
replaceSelections: docMethodOp(function(code, collapse, origin) {
|
||||
let changes = [], sel = this.sel
|
||||
for (let i = 0; i < sel.ranges.length; i++) {
|
||||
let range = sel.ranges[i]
|
||||
changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin}
|
||||
}
|
||||
let newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
|
||||
for (let i = changes.length - 1; i >= 0; i--)
|
||||
makeChange(this, changes[i])
|
||||
if (newSel) setSelectionReplaceHistory(this, newSel)
|
||||
else if (this.cm) ensureCursorVisible(this.cm)
|
||||
}),
|
||||
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
|
||||
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
|
||||
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
|
||||
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
|
||||
|
||||
setExtending: function(val) {this.extend = val},
|
||||
getExtending: function() {return this.extend},
|
||||
|
||||
historySize: function() {
|
||||
let hist = this.history, done = 0, undone = 0
|
||||
for (let i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done
|
||||
for (let i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone
|
||||
return {undo: done, redo: undone}
|
||||
},
|
||||
clearHistory: function() {
|
||||
this.history = new History(this.history.maxGeneration)
|
||||
linkedDocs(this, doc => doc.history = this.history, true)
|
||||
},
|
||||
|
||||
markClean: function() {
|
||||
this.cleanGeneration = this.changeGeneration(true)
|
||||
},
|
||||
changeGeneration: function(forceSplit) {
|
||||
if (forceSplit)
|
||||
this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null
|
||||
return this.history.generation
|
||||
},
|
||||
isClean: function (gen) {
|
||||
return this.history.generation == (gen || this.cleanGeneration)
|
||||
},
|
||||
|
||||
getHistory: function() {
|
||||
return {done: copyHistoryArray(this.history.done),
|
||||
undone: copyHistoryArray(this.history.undone)}
|
||||
},
|
||||
setHistory: function(histData) {
|
||||
let hist = this.history = new History(this.history.maxGeneration)
|
||||
hist.done = copyHistoryArray(histData.done.slice(0), null, true)
|
||||
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
|
||||
},
|
||||
|
||||
setGutterMarker: docMethodOp(function(line, gutterID, value) {
|
||||
return changeLine(this, line, "gutter", line => {
|
||||
let markers = line.gutterMarkers || (line.gutterMarkers = {})
|
||||
markers[gutterID] = value
|
||||
if (!value && isEmpty(markers)) line.gutterMarkers = null
|
||||
return true
|
||||
})
|
||||
}),
|
||||
|
||||
clearGutter: docMethodOp(function(gutterID) {
|
||||
this.iter(line => {
|
||||
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
|
||||
changeLine(this, line, "gutter", () => {
|
||||
line.gutterMarkers[gutterID] = null
|
||||
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null
|
||||
return true
|
||||
})
|
||||
}
|
||||
})
|
||||
}),
|
||||
|
||||
lineInfo: function(line) {
|
||||
let n
|
||||
if (typeof line == "number") {
|
||||
if (!isLine(this, line)) return null
|
||||
n = line
|
||||
line = getLine(this, line)
|
||||
if (!line) return null
|
||||
} else {
|
||||
n = lineNo(line)
|
||||
if (n == null) return null
|
||||
}
|
||||
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
|
||||
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
|
||||
widgets: line.widgets}
|
||||
},
|
||||
|
||||
addLineClass: docMethodOp(function(handle, where, cls) {
|
||||
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", line => {
|
||||
let prop = where == "text" ? "textClass"
|
||||
: where == "background" ? "bgClass"
|
||||
: where == "gutter" ? "gutterClass" : "wrapClass"
|
||||
if (!line[prop]) line[prop] = cls
|
||||
else if (classTest(cls).test(line[prop])) return false
|
||||
else line[prop] += " " + cls
|
||||
return true
|
||||
})
|
||||
}),
|
||||
removeLineClass: docMethodOp(function(handle, where, cls) {
|
||||
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", line => {
|
||||
let prop = where == "text" ? "textClass"
|
||||
: where == "background" ? "bgClass"
|
||||
: where == "gutter" ? "gutterClass" : "wrapClass"
|
||||
let cur = line[prop]
|
||||
if (!cur) return false
|
||||
else if (cls == null) line[prop] = null
|
||||
else {
|
||||
let found = cur.match(classTest(cls))
|
||||
if (!found) return false
|
||||
let end = found.index + found[0].length
|
||||
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
|
||||
}
|
||||
return true
|
||||
})
|
||||
}),
|
||||
|
||||
addLineWidget: docMethodOp(function(handle, node, options) {
|
||||
return addLineWidget(this, handle, node, options)
|
||||
}),
|
||||
removeLineWidget: function(widget) { widget.clear() },
|
||||
|
||||
markText: function(from, to, options) {
|
||||
return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
|
||||
},
|
||||
setBookmark: function(pos, options) {
|
||||
let realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
|
||||
insertLeft: options && options.insertLeft,
|
||||
clearWhenEmpty: false, shared: options && options.shared,
|
||||
handleMouseEvents: options && options.handleMouseEvents}
|
||||
pos = clipPos(this, pos)
|
||||
return markText(this, pos, pos, realOpts, "bookmark")
|
||||
},
|
||||
findMarksAt: function(pos) {
|
||||
pos = clipPos(this, pos)
|
||||
let markers = [], spans = getLine(this, pos.line).markedSpans
|
||||
if (spans) for (let i = 0; i < spans.length; ++i) {
|
||||
let span = spans[i]
|
||||
if ((span.from == null || span.from <= pos.ch) &&
|
||||
(span.to == null || span.to >= pos.ch))
|
||||
markers.push(span.marker.parent || span.marker)
|
||||
}
|
||||
return markers
|
||||
},
|
||||
findMarks: function(from, to, filter) {
|
||||
from = clipPos(this, from); to = clipPos(this, to)
|
||||
let found = [], lineNo = from.line
|
||||
this.iter(from.line, to.line + 1, line => {
|
||||
let spans = line.markedSpans
|
||||
if (spans) for (let i = 0; i < spans.length; i++) {
|
||||
let span = spans[i]
|
||||
if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
|
||||
span.from == null && lineNo != from.line ||
|
||||
span.from != null && lineNo == to.line && span.from >= to.ch) &&
|
||||
(!filter || filter(span.marker)))
|
||||
found.push(span.marker.parent || span.marker)
|
||||
}
|
||||
++lineNo
|
||||
})
|
||||
return found
|
||||
},
|
||||
getAllMarks: function() {
|
||||
let markers = []
|
||||
this.iter(line => {
|
||||
let sps = line.markedSpans
|
||||
if (sps) for (let i = 0; i < sps.length; ++i)
|
||||
if (sps[i].from != null) markers.push(sps[i].marker)
|
||||
})
|
||||
return markers
|
||||
},
|
||||
|
||||
posFromIndex: function(off) {
|
||||
let ch, lineNo = this.first, sepSize = this.lineSeparator().length
|
||||
this.iter(line => {
|
||||
let sz = line.text.length + sepSize
|
||||
if (sz > off) { ch = off; return true }
|
||||
off -= sz
|
||||
++lineNo
|
||||
})
|
||||
return clipPos(this, Pos(lineNo, ch))
|
||||
},
|
||||
indexFromPos: function (coords) {
|
||||
coords = clipPos(this, coords)
|
||||
let index = coords.ch
|
||||
if (coords.line < this.first || coords.ch < 0) return 0
|
||||
let sepSize = this.lineSeparator().length
|
||||
this.iter(this.first, coords.line, line => { // iter aborts when callback returns a truthy value
|
||||
index += line.text.length + sepSize
|
||||
})
|
||||
return index
|
||||
},
|
||||
|
||||
copy: function(copyHistory) {
|
||||
let doc = new Doc(getLines(this, this.first, this.first + this.size),
|
||||
this.modeOption, this.first, this.lineSep, this.direction)
|
||||
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
|
||||
doc.sel = this.sel
|
||||
doc.extend = false
|
||||
if (copyHistory) {
|
||||
doc.history.undoDepth = this.history.undoDepth
|
||||
doc.setHistory(this.getHistory())
|
||||
}
|
||||
return doc
|
||||
},
|
||||
|
||||
linkedDoc: function(options) {
|
||||
if (!options) options = {}
|
||||
let from = this.first, to = this.first + this.size
|
||||
if (options.from != null && options.from > from) from = options.from
|
||||
if (options.to != null && options.to < to) to = options.to
|
||||
let copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)
|
||||
if (options.sharedHist) copy.history = this.history
|
||||
;(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
|
||||
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
|
||||
copySharedMarkers(copy, findSharedMarkers(this))
|
||||
return copy
|
||||
},
|
||||
unlinkDoc: function(other) {
|
||||
if (other instanceof CodeMirror) other = other.doc
|
||||
if (this.linked) for (let i = 0; i < this.linked.length; ++i) {
|
||||
let link = this.linked[i]
|
||||
if (link.doc != other) continue
|
||||
this.linked.splice(i, 1)
|
||||
other.unlinkDoc(this)
|
||||
detachSharedMarkers(findSharedMarkers(this))
|
||||
break
|
||||
}
|
||||
// If the histories were shared, split them again
|
||||
if (other.history == this.history) {
|
||||
let splitIds = [other.id]
|
||||
linkedDocs(other, doc => splitIds.push(doc.id), true)
|
||||
other.history = new History(null)
|
||||
other.history.done = copyHistoryArray(this.history.done, splitIds)
|
||||
other.history.undone = copyHistoryArray(this.history.undone, splitIds)
|
||||
}
|
||||
},
|
||||
iterLinkedDocs: function(f) {linkedDocs(this, f)},
|
||||
|
||||
getMode: function() {return this.mode},
|
||||
getEditor: function() {return this.cm},
|
||||
|
||||
splitLines: function(str) {
|
||||
if (this.lineSep) return str.split(this.lineSep)
|
||||
return splitLinesAuto(str)
|
||||
},
|
||||
lineSeparator: function() { return this.lineSep || "\n" },
|
||||
|
||||
setDirection: docMethodOp(function (dir) {
|
||||
if (dir != "rtl") dir = "ltr"
|
||||
if (dir == this.direction) return
|
||||
this.direction = dir
|
||||
this.iter(line => line.order = null)
|
||||
if (this.cm) directionChanged(this.cm)
|
||||
})
|
||||
})
|
||||
|
||||
// Public alias.
|
||||
Doc.prototype.eachLine = Doc.prototype.iter
|
||||
|
||||
export default Doc
|
||||
|
|
@ -0,0 +1,61 @@
|
|||
import { cmp, Pos } from "../line/pos.js"
|
||||
import { lst } from "../util/misc.js"
|
||||
|
||||
import { normalizeSelection, Range, Selection } from "./selection.js"
|
||||
|
||||
// Compute the position of the end of a change (its 'to' property
|
||||
// refers to the pre-change end).
|
||||
export function changeEnd(change) {
|
||||
if (!change.text) return change.to
|
||||
return Pos(change.from.line + change.text.length - 1,
|
||||
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
|
||||
}
|
||||
|
||||
// Adjust a position to refer to the post-change position of the
|
||||
// same text, or the end of the change if the change covers it.
|
||||
function adjustForChange(pos, change) {
|
||||
if (cmp(pos, change.from) < 0) return pos
|
||||
if (cmp(pos, change.to) <= 0) return changeEnd(change)
|
||||
|
||||
let line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
|
||||
if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch
|
||||
return Pos(line, ch)
|
||||
}
|
||||
|
||||
export function computeSelAfterChange(doc, change) {
|
||||
let out = []
|
||||
for (let i = 0; i < doc.sel.ranges.length; i++) {
|
||||
let range = doc.sel.ranges[i]
|
||||
out.push(new Range(adjustForChange(range.anchor, change),
|
||||
adjustForChange(range.head, change)))
|
||||
}
|
||||
return normalizeSelection(doc.cm, out, doc.sel.primIndex)
|
||||
}
|
||||
|
||||
function offsetPos(pos, old, nw) {
|
||||
if (pos.line == old.line)
|
||||
return Pos(nw.line, pos.ch - old.ch + nw.ch)
|
||||
else
|
||||
return Pos(nw.line + (pos.line - old.line), pos.ch)
|
||||
}
|
||||
|
||||
// Used by replaceSelections to allow moving the selection to the
|
||||
// start or around the replaced test. Hint may be "start" or "around".
|
||||
export function computeReplacedSel(doc, changes, hint) {
|
||||
let out = []
|
||||
let oldPrev = Pos(doc.first, 0), newPrev = oldPrev
|
||||
for (let i = 0; i < changes.length; i++) {
|
||||
let change = changes[i]
|
||||
let from = offsetPos(change.from, oldPrev, newPrev)
|
||||
let to = offsetPos(changeEnd(change), oldPrev, newPrev)
|
||||
oldPrev = change.to
|
||||
newPrev = to
|
||||
if (hint == "around") {
|
||||
let range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
|
||||
out[i] = new Range(inv ? to : from, inv ? from : to)
|
||||
} else {
|
||||
out[i] = new Range(from, from)
|
||||
}
|
||||
}
|
||||
return new Selection(out, doc.sel.primIndex)
|
||||
}
|
||||
|
|
@ -0,0 +1,339 @@
|
|||
import { retreatFrontier } from "../line/highlight.js"
|
||||
import { startWorker } from "../display/highlight_worker.js"
|
||||
import { operation } from "../display/operations.js"
|
||||
import { regChange, regLineChange } from "../display/view_tracking.js"
|
||||
import { clipLine, clipPos, cmp, Pos } from "../line/pos.js"
|
||||
import { sawReadOnlySpans } from "../line/saw_special_spans.js"
|
||||
import { lineLength, removeReadOnlyRanges, stretchSpansOverChange, visualLine } from "../line/spans.js"
|
||||
import { getBetween, getLine, lineNo } from "../line/utils_line.js"
|
||||
import { estimateHeight } from "../measurement/position_measurement.js"
|
||||
import { hasHandler, signal, signalCursorActivity } from "../util/event.js"
|
||||
import { indexOf, lst, map, sel_dontScroll } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
|
||||
import { changeEnd, computeSelAfterChange } from "./change_measurement.js"
|
||||
import { isWholeLineUpdate, linkedDocs, updateDoc } from "./document_data.js"
|
||||
import { addChangeToHistory, historyChangeFromChange, mergeOldSpans, pushSelectionToHistory } from "./history.js"
|
||||
import { Range, Selection } from "./selection.js"
|
||||
import { setSelection, setSelectionNoUndo, skipAtomic } from "./selection_updates.js"
|
||||
|
||||
// UPDATING
|
||||
|
||||
// Allow "beforeChange" event handlers to influence a change
|
||||
function filterChange(doc, change, update) {
|
||||
let obj = {
|
||||
canceled: false,
|
||||
from: change.from,
|
||||
to: change.to,
|
||||
text: change.text,
|
||||
origin: change.origin,
|
||||
cancel: () => obj.canceled = true
|
||||
}
|
||||
if (update) obj.update = (from, to, text, origin) => {
|
||||
if (from) obj.from = clipPos(doc, from)
|
||||
if (to) obj.to = clipPos(doc, to)
|
||||
if (text) obj.text = text
|
||||
if (origin !== undefined) obj.origin = origin
|
||||
}
|
||||
signal(doc, "beforeChange", doc, obj)
|
||||
if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj)
|
||||
|
||||
if (obj.canceled) {
|
||||
if (doc.cm) doc.cm.curOp.updateInput = 2
|
||||
return null
|
||||
}
|
||||
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
|
||||
}
|
||||
|
||||
// Apply a change to a document, and add it to the document's
|
||||
// history, and propagating it to all linked documents.
|
||||
export function makeChange(doc, change, ignoreReadOnly) {
|
||||
if (doc.cm) {
|
||||
if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly)
|
||||
if (doc.cm.state.suppressEdits) return
|
||||
}
|
||||
|
||||
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
|
||||
change = filterChange(doc, change, true)
|
||||
if (!change) return
|
||||
}
|
||||
|
||||
// Possibly split or suppress the update based on the presence
|
||||
// of read-only spans in its range.
|
||||
let split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
|
||||
if (split) {
|
||||
for (let i = split.length - 1; i >= 0; --i)
|
||||
makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin})
|
||||
} else {
|
||||
makeChangeInner(doc, change)
|
||||
}
|
||||
}
|
||||
|
||||
function makeChangeInner(doc, change) {
|
||||
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return
|
||||
let selAfter = computeSelAfterChange(doc, change)
|
||||
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
|
||||
|
||||
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
|
||||
let rebased = []
|
||||
|
||||
linkedDocs(doc, (doc, sharedHist) => {
|
||||
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
|
||||
rebaseHist(doc.history, change)
|
||||
rebased.push(doc.history)
|
||||
}
|
||||
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
|
||||
})
|
||||
}
|
||||
|
||||
// Revert a change stored in a document's history.
|
||||
export function makeChangeFromHistory(doc, type, allowSelectionOnly) {
|
||||
let suppress = doc.cm && doc.cm.state.suppressEdits
|
||||
if (suppress && !allowSelectionOnly) return
|
||||
|
||||
let hist = doc.history, event, selAfter = doc.sel
|
||||
let source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
|
||||
|
||||
// Verify that there is a useable event (so that ctrl-z won't
|
||||
// needlessly clear selection events)
|
||||
let i = 0
|
||||
for (; i < source.length; i++) {
|
||||
event = source[i]
|
||||
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
|
||||
break
|
||||
}
|
||||
if (i == source.length) return
|
||||
hist.lastOrigin = hist.lastSelOrigin = null
|
||||
|
||||
for (;;) {
|
||||
event = source.pop()
|
||||
if (event.ranges) {
|
||||
pushSelectionToHistory(event, dest)
|
||||
if (allowSelectionOnly && !event.equals(doc.sel)) {
|
||||
setSelection(doc, event, {clearRedo: false})
|
||||
return
|
||||
}
|
||||
selAfter = event
|
||||
} else if (suppress) {
|
||||
source.push(event)
|
||||
return
|
||||
} else break
|
||||
}
|
||||
|
||||
// Build up a reverse change object to add to the opposite history
|
||||
// stack (redo when undoing, and vice versa).
|
||||
let antiChanges = []
|
||||
pushSelectionToHistory(selAfter, dest)
|
||||
dest.push({changes: antiChanges, generation: hist.generation})
|
||||
hist.generation = event.generation || ++hist.maxGeneration
|
||||
|
||||
let filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
|
||||
|
||||
for (let i = event.changes.length - 1; i >= 0; --i) {
|
||||
let change = event.changes[i]
|
||||
change.origin = type
|
||||
if (filter && !filterChange(doc, change, false)) {
|
||||
source.length = 0
|
||||
return
|
||||
}
|
||||
|
||||
antiChanges.push(historyChangeFromChange(doc, change))
|
||||
|
||||
let after = i ? computeSelAfterChange(doc, change) : lst(source)
|
||||
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
|
||||
if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)})
|
||||
let rebased = []
|
||||
|
||||
// Propagate to the linked documents
|
||||
linkedDocs(doc, (doc, sharedHist) => {
|
||||
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
|
||||
rebaseHist(doc.history, change)
|
||||
rebased.push(doc.history)
|
||||
}
|
||||
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// Sub-views need their line numbers shifted when text is added
|
||||
// above or below them in the parent document.
|
||||
function shiftDoc(doc, distance) {
|
||||
if (distance == 0) return
|
||||
doc.first += distance
|
||||
doc.sel = new Selection(map(doc.sel.ranges, range => new Range(
|
||||
Pos(range.anchor.line + distance, range.anchor.ch),
|
||||
Pos(range.head.line + distance, range.head.ch)
|
||||
)), doc.sel.primIndex)
|
||||
if (doc.cm) {
|
||||
regChange(doc.cm, doc.first, doc.first - distance, distance)
|
||||
for (let d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
|
||||
regLineChange(doc.cm, l, "gutter")
|
||||
}
|
||||
}
|
||||
|
||||
// More lower-level change function, handling only a single document
|
||||
// (not linked ones).
|
||||
function makeChangeSingleDoc(doc, change, selAfter, spans) {
|
||||
if (doc.cm && !doc.cm.curOp)
|
||||
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans)
|
||||
|
||||
if (change.to.line < doc.first) {
|
||||
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
|
||||
return
|
||||
}
|
||||
if (change.from.line > doc.lastLine()) return
|
||||
|
||||
// Clip the change to the size of this doc
|
||||
if (change.from.line < doc.first) {
|
||||
let shift = change.text.length - 1 - (doc.first - change.from.line)
|
||||
shiftDoc(doc, shift)
|
||||
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
|
||||
text: [lst(change.text)], origin: change.origin}
|
||||
}
|
||||
let last = doc.lastLine()
|
||||
if (change.to.line > last) {
|
||||
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
|
||||
text: [change.text[0]], origin: change.origin}
|
||||
}
|
||||
|
||||
change.removed = getBetween(doc, change.from, change.to)
|
||||
|
||||
if (!selAfter) selAfter = computeSelAfterChange(doc, change)
|
||||
if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans)
|
||||
else updateDoc(doc, change, spans)
|
||||
setSelectionNoUndo(doc, selAfter, sel_dontScroll)
|
||||
|
||||
if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
|
||||
doc.cantEdit = false
|
||||
}
|
||||
|
||||
// Handle the interaction of a change to a document with the editor
|
||||
// that this document is part of.
|
||||
function makeChangeSingleDocInEditor(cm, change, spans) {
|
||||
let doc = cm.doc, display = cm.display, from = change.from, to = change.to
|
||||
|
||||
let recomputeMaxLength = false, checkWidthStart = from.line
|
||||
if (!cm.options.lineWrapping) {
|
||||
checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
|
||||
doc.iter(checkWidthStart, to.line + 1, line => {
|
||||
if (line == display.maxLine) {
|
||||
recomputeMaxLength = true
|
||||
return true
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
if (doc.sel.contains(change.from, change.to) > -1)
|
||||
signalCursorActivity(cm)
|
||||
|
||||
updateDoc(doc, change, spans, estimateHeight(cm))
|
||||
|
||||
if (!cm.options.lineWrapping) {
|
||||
doc.iter(checkWidthStart, from.line + change.text.length, line => {
|
||||
let len = lineLength(line)
|
||||
if (len > display.maxLineLength) {
|
||||
display.maxLine = line
|
||||
display.maxLineLength = len
|
||||
display.maxLineChanged = true
|
||||
recomputeMaxLength = false
|
||||
}
|
||||
})
|
||||
if (recomputeMaxLength) cm.curOp.updateMaxLine = true
|
||||
}
|
||||
|
||||
retreatFrontier(doc, from.line)
|
||||
startWorker(cm, 400)
|
||||
|
||||
let lendiff = change.text.length - (to.line - from.line) - 1
|
||||
// Remember that these lines changed, for updating the display
|
||||
if (change.full)
|
||||
regChange(cm)
|
||||
else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
|
||||
regLineChange(cm, from.line, "text")
|
||||
else
|
||||
regChange(cm, from.line, to.line + 1, lendiff)
|
||||
|
||||
let changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
|
||||
if (changeHandler || changesHandler) {
|
||||
let obj = {
|
||||
from: from, to: to,
|
||||
text: change.text,
|
||||
removed: change.removed,
|
||||
origin: change.origin
|
||||
}
|
||||
if (changeHandler) signalLater(cm, "change", cm, obj)
|
||||
if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj)
|
||||
}
|
||||
cm.display.selForContextMenu = null
|
||||
}
|
||||
|
||||
export function replaceRange(doc, code, from, to, origin) {
|
||||
if (!to) to = from
|
||||
if (cmp(to, from) < 0) [from, to] = [to, from]
|
||||
if (typeof code == "string") code = doc.splitLines(code)
|
||||
makeChange(doc, {from, to, text: code, origin})
|
||||
}
|
||||
|
||||
// Rebasing/resetting history to deal with externally-sourced changes
|
||||
|
||||
function rebaseHistSelSingle(pos, from, to, diff) {
|
||||
if (to < pos.line) {
|
||||
pos.line += diff
|
||||
} else if (from < pos.line) {
|
||||
pos.line = from
|
||||
pos.ch = 0
|
||||
}
|
||||
}
|
||||
|
||||
// Tries to rebase an array of history events given a change in the
|
||||
// document. If the change touches the same lines as the event, the
|
||||
// event, and everything 'behind' it, is discarded. If the change is
|
||||
// before the event, the event's positions are updated. Uses a
|
||||
// copy-on-write scheme for the positions, to avoid having to
|
||||
// reallocate them all on every rebase, but also avoid problems with
|
||||
// shared position objects being unsafely updated.
|
||||
function rebaseHistArray(array, from, to, diff) {
|
||||
for (let i = 0; i < array.length; ++i) {
|
||||
let sub = array[i], ok = true
|
||||
if (sub.ranges) {
|
||||
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
|
||||
for (let j = 0; j < sub.ranges.length; j++) {
|
||||
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
|
||||
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
|
||||
}
|
||||
continue
|
||||
}
|
||||
for (let j = 0; j < sub.changes.length; ++j) {
|
||||
let cur = sub.changes[j]
|
||||
if (to < cur.from.line) {
|
||||
cur.from = Pos(cur.from.line + diff, cur.from.ch)
|
||||
cur.to = Pos(cur.to.line + diff, cur.to.ch)
|
||||
} else if (from <= cur.to.line) {
|
||||
ok = false
|
||||
break
|
||||
}
|
||||
}
|
||||
if (!ok) {
|
||||
array.splice(0, i + 1)
|
||||
i = 0
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function rebaseHist(hist, change) {
|
||||
let from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
|
||||
rebaseHistArray(hist.done, from, to, diff)
|
||||
rebaseHistArray(hist.undone, from, to, diff)
|
||||
}
|
||||
|
||||
// Utility for applying a change to a line by handle or number,
|
||||
// returning the number and optionally registering the line as
|
||||
// changed.
|
||||
export function changeLine(doc, handle, changeType, op) {
|
||||
let no = handle, line = handle
|
||||
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle))
|
||||
else no = lineNo(handle)
|
||||
if (no == null) return null
|
||||
if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType)
|
||||
return line
|
||||
}
|
||||
|
|
@ -0,0 +1,167 @@
|
|||
import { cleanUpLine } from "../line/line_data.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
|
||||
// The document is represented as a BTree consisting of leaves, with
|
||||
// chunk of lines in them, and branches, with up to ten leaves or
|
||||
// other branch nodes below them. The top node is always a branch
|
||||
// node, and is the document object itself (meaning it has
|
||||
// additional methods and properties).
|
||||
//
|
||||
// All nodes have parent links. The tree is used both to go from
|
||||
// line numbers to line objects, and to go from objects to numbers.
|
||||
// It also indexes by height, and is used to convert between height
|
||||
// and line object, and to find the total height of the document.
|
||||
//
|
||||
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
|
||||
|
||||
export function LeafChunk(lines) {
|
||||
this.lines = lines
|
||||
this.parent = null
|
||||
let height = 0
|
||||
for (let i = 0; i < lines.length; ++i) {
|
||||
lines[i].parent = this
|
||||
height += lines[i].height
|
||||
}
|
||||
this.height = height
|
||||
}
|
||||
|
||||
LeafChunk.prototype = {
|
||||
chunkSize() { return this.lines.length },
|
||||
|
||||
// Remove the n lines at offset 'at'.
|
||||
removeInner(at, n) {
|
||||
for (let i = at, e = at + n; i < e; ++i) {
|
||||
let line = this.lines[i]
|
||||
this.height -= line.height
|
||||
cleanUpLine(line)
|
||||
signalLater(line, "delete")
|
||||
}
|
||||
this.lines.splice(at, n)
|
||||
},
|
||||
|
||||
// Helper used to collapse a small branch into a single leaf.
|
||||
collapse(lines) {
|
||||
lines.push.apply(lines, this.lines)
|
||||
},
|
||||
|
||||
// Insert the given array of lines at offset 'at', count them as
|
||||
// having the given height.
|
||||
insertInner(at, lines, height) {
|
||||
this.height += height
|
||||
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
|
||||
for (let i = 0; i < lines.length; ++i) lines[i].parent = this
|
||||
},
|
||||
|
||||
// Used to iterate over a part of the tree.
|
||||
iterN(at, n, op) {
|
||||
for (let e = at + n; at < e; ++at)
|
||||
if (op(this.lines[at])) return true
|
||||
}
|
||||
}
|
||||
|
||||
export function BranchChunk(children) {
|
||||
this.children = children
|
||||
let size = 0, height = 0
|
||||
for (let i = 0; i < children.length; ++i) {
|
||||
let ch = children[i]
|
||||
size += ch.chunkSize(); height += ch.height
|
||||
ch.parent = this
|
||||
}
|
||||
this.size = size
|
||||
this.height = height
|
||||
this.parent = null
|
||||
}
|
||||
|
||||
BranchChunk.prototype = {
|
||||
chunkSize() { return this.size },
|
||||
|
||||
removeInner(at, n) {
|
||||
this.size -= n
|
||||
for (let i = 0; i < this.children.length; ++i) {
|
||||
let child = this.children[i], sz = child.chunkSize()
|
||||
if (at < sz) {
|
||||
let rm = Math.min(n, sz - at), oldHeight = child.height
|
||||
child.removeInner(at, rm)
|
||||
this.height -= oldHeight - child.height
|
||||
if (sz == rm) { this.children.splice(i--, 1); child.parent = null }
|
||||
if ((n -= rm) == 0) break
|
||||
at = 0
|
||||
} else at -= sz
|
||||
}
|
||||
// If the result is smaller than 25 lines, ensure that it is a
|
||||
// single leaf node.
|
||||
if (this.size - n < 25 &&
|
||||
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
|
||||
let lines = []
|
||||
this.collapse(lines)
|
||||
this.children = [new LeafChunk(lines)]
|
||||
this.children[0].parent = this
|
||||
}
|
||||
},
|
||||
|
||||
collapse(lines) {
|
||||
for (let i = 0; i < this.children.length; ++i) this.children[i].collapse(lines)
|
||||
},
|
||||
|
||||
insertInner(at, lines, height) {
|
||||
this.size += lines.length
|
||||
this.height += height
|
||||
for (let i = 0; i < this.children.length; ++i) {
|
||||
let child = this.children[i], sz = child.chunkSize()
|
||||
if (at <= sz) {
|
||||
child.insertInner(at, lines, height)
|
||||
if (child.lines && child.lines.length > 50) {
|
||||
// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
|
||||
// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
|
||||
let remaining = child.lines.length % 25 + 25
|
||||
for (let pos = remaining; pos < child.lines.length;) {
|
||||
let leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
|
||||
child.height -= leaf.height
|
||||
this.children.splice(++i, 0, leaf)
|
||||
leaf.parent = this
|
||||
}
|
||||
child.lines = child.lines.slice(0, remaining)
|
||||
this.maybeSpill()
|
||||
}
|
||||
break
|
||||
}
|
||||
at -= sz
|
||||
}
|
||||
},
|
||||
|
||||
// When a node has grown, check whether it should be split.
|
||||
maybeSpill() {
|
||||
if (this.children.length <= 10) return
|
||||
let me = this
|
||||
do {
|
||||
let spilled = me.children.splice(me.children.length - 5, 5)
|
||||
let sibling = new BranchChunk(spilled)
|
||||
if (!me.parent) { // Become the parent node
|
||||
let copy = new BranchChunk(me.children)
|
||||
copy.parent = me
|
||||
me.children = [copy, sibling]
|
||||
me = copy
|
||||
} else {
|
||||
me.size -= sibling.size
|
||||
me.height -= sibling.height
|
||||
let myIndex = indexOf(me.parent.children, me)
|
||||
me.parent.children.splice(myIndex + 1, 0, sibling)
|
||||
}
|
||||
sibling.parent = me.parent
|
||||
} while (me.children.length > 10)
|
||||
me.parent.maybeSpill()
|
||||
},
|
||||
|
||||
iterN(at, n, op) {
|
||||
for (let i = 0; i < this.children.length; ++i) {
|
||||
let child = this.children[i], sz = child.chunkSize()
|
||||
if (at < sz) {
|
||||
let used = Math.min(n, sz - at)
|
||||
if (child.iterN(at, used, op)) return true
|
||||
if ((n -= used) == 0) break
|
||||
at = 0
|
||||
} else at -= sz
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,111 @@
|
|||
import { loadMode } from "../display/mode_state.js"
|
||||
import { runInOp } from "../display/operations.js"
|
||||
import { regChange } from "../display/view_tracking.js"
|
||||
import { Line, updateLine } from "../line/line_data.js"
|
||||
import { findMaxLine } from "../line/spans.js"
|
||||
import { getLine } from "../line/utils_line.js"
|
||||
import { estimateLineHeights } from "../measurement/position_measurement.js"
|
||||
import { addClass, rmClass } from "../util/dom.js"
|
||||
import { lst } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
|
||||
// DOCUMENT DATA STRUCTURE
|
||||
|
||||
// By default, updates that start and end at the beginning of a line
|
||||
// are treated specially, in order to make the association of line
|
||||
// widgets and marker elements with the text behave more intuitive.
|
||||
export function isWholeLineUpdate(doc, change) {
|
||||
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
|
||||
(!doc.cm || doc.cm.options.wholeLineUpdateBefore)
|
||||
}
|
||||
|
||||
// Perform a change on the document data structure.
|
||||
export function updateDoc(doc, change, markedSpans, estimateHeight) {
|
||||
function spansFor(n) {return markedSpans ? markedSpans[n] : null}
|
||||
function update(line, text, spans) {
|
||||
updateLine(line, text, spans, estimateHeight)
|
||||
signalLater(line, "change", line, change)
|
||||
}
|
||||
function linesFor(start, end) {
|
||||
let result = []
|
||||
for (let i = start; i < end; ++i)
|
||||
result.push(new Line(text[i], spansFor(i), estimateHeight))
|
||||
return result
|
||||
}
|
||||
|
||||
let from = change.from, to = change.to, text = change.text
|
||||
let firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
|
||||
let lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
|
||||
|
||||
// Adjust the line structure
|
||||
if (change.full) {
|
||||
doc.insert(0, linesFor(0, text.length))
|
||||
doc.remove(text.length, doc.size - text.length)
|
||||
} else if (isWholeLineUpdate(doc, change)) {
|
||||
// This is a whole-line replace. Treated specially to make
|
||||
// sure line objects move the way they are supposed to.
|
||||
let added = linesFor(0, text.length - 1)
|
||||
update(lastLine, lastLine.text, lastSpans)
|
||||
if (nlines) doc.remove(from.line, nlines)
|
||||
if (added.length) doc.insert(from.line, added)
|
||||
} else if (firstLine == lastLine) {
|
||||
if (text.length == 1) {
|
||||
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
|
||||
} else {
|
||||
let added = linesFor(1, text.length - 1)
|
||||
added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
|
||||
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
|
||||
doc.insert(from.line + 1, added)
|
||||
}
|
||||
} else if (text.length == 1) {
|
||||
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
|
||||
doc.remove(from.line + 1, nlines)
|
||||
} else {
|
||||
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
|
||||
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
|
||||
let added = linesFor(1, text.length - 1)
|
||||
if (nlines > 1) doc.remove(from.line + 1, nlines - 1)
|
||||
doc.insert(from.line + 1, added)
|
||||
}
|
||||
|
||||
signalLater(doc, "change", doc, change)
|
||||
}
|
||||
|
||||
// Call f for all linked documents.
|
||||
export function linkedDocs(doc, f, sharedHistOnly) {
|
||||
function propagate(doc, skip, sharedHist) {
|
||||
if (doc.linked) for (let i = 0; i < doc.linked.length; ++i) {
|
||||
let rel = doc.linked[i]
|
||||
if (rel.doc == skip) continue
|
||||
let shared = sharedHist && rel.sharedHist
|
||||
if (sharedHistOnly && !shared) continue
|
||||
f(rel.doc, shared)
|
||||
propagate(rel.doc, doc, shared)
|
||||
}
|
||||
}
|
||||
propagate(doc, null, true)
|
||||
}
|
||||
|
||||
// Attach a document to an editor.
|
||||
export function attachDoc(cm, doc) {
|
||||
if (doc.cm) throw new Error("This document is already in use.")
|
||||
cm.doc = doc
|
||||
doc.cm = cm
|
||||
estimateLineHeights(cm)
|
||||
loadMode(cm)
|
||||
setDirectionClass(cm)
|
||||
if (!cm.options.lineWrapping) findMaxLine(cm)
|
||||
cm.options.mode = doc.modeOption
|
||||
regChange(cm)
|
||||
}
|
||||
|
||||
function setDirectionClass(cm) {
|
||||
;(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl")
|
||||
}
|
||||
|
||||
export function directionChanged(cm) {
|
||||
runInOp(cm, () => {
|
||||
setDirectionClass(cm)
|
||||
regChange(cm)
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,228 @@
|
|||
import { cmp, copyPos } from "../line/pos.js"
|
||||
import { stretchSpansOverChange } from "../line/spans.js"
|
||||
import { getBetween } from "../line/utils_line.js"
|
||||
import { signal } from "../util/event.js"
|
||||
import { indexOf, lst } from "../util/misc.js"
|
||||
|
||||
import { changeEnd } from "./change_measurement.js"
|
||||
import { linkedDocs } from "./document_data.js"
|
||||
import { Selection } from "./selection.js"
|
||||
|
||||
export function History(startGen) {
|
||||
// Arrays of change events and selections. Doing something adds an
|
||||
// event to done and clears undo. Undoing moves events from done
|
||||
// to undone, redoing moves them in the other direction.
|
||||
this.done = []; this.undone = []
|
||||
this.undoDepth = Infinity
|
||||
// Used to track when changes can be merged into a single undo
|
||||
// event
|
||||
this.lastModTime = this.lastSelTime = 0
|
||||
this.lastOp = this.lastSelOp = null
|
||||
this.lastOrigin = this.lastSelOrigin = null
|
||||
// Used by the isClean() method
|
||||
this.generation = this.maxGeneration = startGen || 1
|
||||
}
|
||||
|
||||
// Create a history change event from an updateDoc-style change
|
||||
// object.
|
||||
export function historyChangeFromChange(doc, change) {
|
||||
let histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
|
||||
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
|
||||
linkedDocs(doc, doc => attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1), true)
|
||||
return histChange
|
||||
}
|
||||
|
||||
// Pop all selection events off the end of a history array. Stop at
|
||||
// a change event.
|
||||
function clearSelectionEvents(array) {
|
||||
while (array.length) {
|
||||
let last = lst(array)
|
||||
if (last.ranges) array.pop()
|
||||
else break
|
||||
}
|
||||
}
|
||||
|
||||
// Find the top change event in the history. Pop off selection
|
||||
// events that are in the way.
|
||||
function lastChangeEvent(hist, force) {
|
||||
if (force) {
|
||||
clearSelectionEvents(hist.done)
|
||||
return lst(hist.done)
|
||||
} else if (hist.done.length && !lst(hist.done).ranges) {
|
||||
return lst(hist.done)
|
||||
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
|
||||
hist.done.pop()
|
||||
return lst(hist.done)
|
||||
}
|
||||
}
|
||||
|
||||
// Register a change in the history. Merges changes that are within
|
||||
// a single operation, or are close together with an origin that
|
||||
// allows merging (starting with "+") into a single event.
|
||||
export function addChangeToHistory(doc, change, selAfter, opId) {
|
||||
let hist = doc.history
|
||||
hist.undone.length = 0
|
||||
let time = +new Date, cur
|
||||
let last
|
||||
|
||||
if ((hist.lastOp == opId ||
|
||||
hist.lastOrigin == change.origin && change.origin &&
|
||||
((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
|
||||
change.origin.charAt(0) == "*")) &&
|
||||
(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
|
||||
// Merge this change into the last event
|
||||
last = lst(cur.changes)
|
||||
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
|
||||
// Optimized case for simple insertion -- don't want to add
|
||||
// new changesets for every character typed
|
||||
last.to = changeEnd(change)
|
||||
} else {
|
||||
// Add new sub-event
|
||||
cur.changes.push(historyChangeFromChange(doc, change))
|
||||
}
|
||||
} else {
|
||||
// Can not be merged, start a new event.
|
||||
let before = lst(hist.done)
|
||||
if (!before || !before.ranges)
|
||||
pushSelectionToHistory(doc.sel, hist.done)
|
||||
cur = {changes: [historyChangeFromChange(doc, change)],
|
||||
generation: hist.generation}
|
||||
hist.done.push(cur)
|
||||
while (hist.done.length > hist.undoDepth) {
|
||||
hist.done.shift()
|
||||
if (!hist.done[0].ranges) hist.done.shift()
|
||||
}
|
||||
}
|
||||
hist.done.push(selAfter)
|
||||
hist.generation = ++hist.maxGeneration
|
||||
hist.lastModTime = hist.lastSelTime = time
|
||||
hist.lastOp = hist.lastSelOp = opId
|
||||
hist.lastOrigin = hist.lastSelOrigin = change.origin
|
||||
|
||||
if (!last) signal(doc, "historyAdded")
|
||||
}
|
||||
|
||||
function selectionEventCanBeMerged(doc, origin, prev, sel) {
|
||||
let ch = origin.charAt(0)
|
||||
return ch == "*" ||
|
||||
ch == "+" &&
|
||||
prev.ranges.length == sel.ranges.length &&
|
||||
prev.somethingSelected() == sel.somethingSelected() &&
|
||||
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
|
||||
}
|
||||
|
||||
// Called whenever the selection changes, sets the new selection as
|
||||
// the pending selection in the history, and pushes the old pending
|
||||
// selection into the 'done' array when it was significantly
|
||||
// different (in number of selected ranges, emptiness, or time).
|
||||
export function addSelectionToHistory(doc, sel, opId, options) {
|
||||
let hist = doc.history, origin = options && options.origin
|
||||
|
||||
// A new event is started when the previous origin does not match
|
||||
// the current, or the origins don't allow matching. Origins
|
||||
// starting with * are always merged, those starting with + are
|
||||
// merged when similar and close together in time.
|
||||
if (opId == hist.lastSelOp ||
|
||||
(origin && hist.lastSelOrigin == origin &&
|
||||
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
|
||||
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
|
||||
hist.done[hist.done.length - 1] = sel
|
||||
else
|
||||
pushSelectionToHistory(sel, hist.done)
|
||||
|
||||
hist.lastSelTime = +new Date
|
||||
hist.lastSelOrigin = origin
|
||||
hist.lastSelOp = opId
|
||||
if (options && options.clearRedo !== false)
|
||||
clearSelectionEvents(hist.undone)
|
||||
}
|
||||
|
||||
export function pushSelectionToHistory(sel, dest) {
|
||||
let top = lst(dest)
|
||||
if (!(top && top.ranges && top.equals(sel)))
|
||||
dest.push(sel)
|
||||
}
|
||||
|
||||
// Used to store marked span information in the history.
|
||||
function attachLocalSpans(doc, change, from, to) {
|
||||
let existing = change["spans_" + doc.id], n = 0
|
||||
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), line => {
|
||||
if (line.markedSpans)
|
||||
(existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans
|
||||
++n
|
||||
})
|
||||
}
|
||||
|
||||
// When un/re-doing restores text containing marked spans, those
|
||||
// that have been explicitly cleared should not be restored.
|
||||
function removeClearedSpans(spans) {
|
||||
if (!spans) return null
|
||||
let out
|
||||
for (let i = 0; i < spans.length; ++i) {
|
||||
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i) }
|
||||
else if (out) out.push(spans[i])
|
||||
}
|
||||
return !out ? spans : out.length ? out : null
|
||||
}
|
||||
|
||||
// Retrieve and filter the old marked spans stored in a change event.
|
||||
function getOldSpans(doc, change) {
|
||||
let found = change["spans_" + doc.id]
|
||||
if (!found) return null
|
||||
let nw = []
|
||||
for (let i = 0; i < change.text.length; ++i)
|
||||
nw.push(removeClearedSpans(found[i]))
|
||||
return nw
|
||||
}
|
||||
|
||||
// Used for un/re-doing changes from the history. Combines the
|
||||
// result of computing the existing spans with the set of spans that
|
||||
// existed in the history (so that deleting around a span and then
|
||||
// undoing brings back the span).
|
||||
export function mergeOldSpans(doc, change) {
|
||||
let old = getOldSpans(doc, change)
|
||||
let stretched = stretchSpansOverChange(doc, change)
|
||||
if (!old) return stretched
|
||||
if (!stretched) return old
|
||||
|
||||
for (let i = 0; i < old.length; ++i) {
|
||||
let oldCur = old[i], stretchCur = stretched[i]
|
||||
if (oldCur && stretchCur) {
|
||||
spans: for (let j = 0; j < stretchCur.length; ++j) {
|
||||
let span = stretchCur[j]
|
||||
for (let k = 0; k < oldCur.length; ++k)
|
||||
if (oldCur[k].marker == span.marker) continue spans
|
||||
oldCur.push(span)
|
||||
}
|
||||
} else if (stretchCur) {
|
||||
old[i] = stretchCur
|
||||
}
|
||||
}
|
||||
return old
|
||||
}
|
||||
|
||||
// Used both to provide a JSON-safe object in .getHistory, and, when
|
||||
// detaching a document, to split the history in two
|
||||
export function copyHistoryArray(events, newGroup, instantiateSel) {
|
||||
let copy = []
|
||||
for (let i = 0; i < events.length; ++i) {
|
||||
let event = events[i]
|
||||
if (event.ranges) {
|
||||
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
|
||||
continue
|
||||
}
|
||||
let changes = event.changes, newChanges = []
|
||||
copy.push({changes: newChanges})
|
||||
for (let j = 0; j < changes.length; ++j) {
|
||||
let change = changes[j], m
|
||||
newChanges.push({from: change.from, to: change.to, text: change.text})
|
||||
if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
|
||||
if (indexOf(newGroup, Number(m[1])) > -1) {
|
||||
lst(newChanges)[prop] = change[prop]
|
||||
delete change[prop]
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return copy
|
||||
}
|
||||
|
|
@ -0,0 +1,78 @@
|
|||
import { runInOp } from "../display/operations.js"
|
||||
import { addToScrollTop } from "../display/scrolling.js"
|
||||
import { regLineChange } from "../display/view_tracking.js"
|
||||
import { heightAtLine, lineIsHidden } from "../line/spans.js"
|
||||
import { lineNo, updateLineHeight } from "../line/utils_line.js"
|
||||
import { widgetHeight } from "../measurement/widgets.js"
|
||||
import { changeLine } from "./changes.js"
|
||||
import { eventMixin } from "../util/event.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
|
||||
// Line widgets are block elements displayed above or below a line.
|
||||
|
||||
export class LineWidget {
|
||||
constructor(doc, node, options) {
|
||||
if (options) for (let opt in options) if (options.hasOwnProperty(opt))
|
||||
this[opt] = options[opt]
|
||||
this.doc = doc
|
||||
this.node = node
|
||||
}
|
||||
|
||||
clear() {
|
||||
let cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
|
||||
if (no == null || !ws) return
|
||||
for (let i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1)
|
||||
if (!ws.length) line.widgets = null
|
||||
let height = widgetHeight(this)
|
||||
updateLineHeight(line, Math.max(0, line.height - height))
|
||||
if (cm) {
|
||||
runInOp(cm, () => {
|
||||
adjustScrollWhenAboveVisible(cm, line, -height)
|
||||
regLineChange(cm, no, "widget")
|
||||
})
|
||||
signalLater(cm, "lineWidgetCleared", cm, this, no)
|
||||
}
|
||||
}
|
||||
|
||||
changed() {
|
||||
let oldH = this.height, cm = this.doc.cm, line = this.line
|
||||
this.height = null
|
||||
let diff = widgetHeight(this) - oldH
|
||||
if (!diff) return
|
||||
if (!lineIsHidden(this.doc, line)) updateLineHeight(line, line.height + diff)
|
||||
if (cm) {
|
||||
runInOp(cm, () => {
|
||||
cm.curOp.forceUpdate = true
|
||||
adjustScrollWhenAboveVisible(cm, line, diff)
|
||||
signalLater(cm, "lineWidgetChanged", cm, this, lineNo(line))
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
eventMixin(LineWidget)
|
||||
|
||||
function adjustScrollWhenAboveVisible(cm, line, diff) {
|
||||
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
|
||||
addToScrollTop(cm, diff)
|
||||
}
|
||||
|
||||
export function addLineWidget(doc, handle, node, options) {
|
||||
let widget = new LineWidget(doc, node, options)
|
||||
let cm = doc.cm
|
||||
if (cm && widget.noHScroll) cm.display.alignWidgets = true
|
||||
changeLine(doc, handle, "widget", line => {
|
||||
let widgets = line.widgets || (line.widgets = [])
|
||||
if (widget.insertAt == null) widgets.push(widget)
|
||||
else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget)
|
||||
widget.line = line
|
||||
if (cm && !lineIsHidden(doc, line)) {
|
||||
let aboveVisible = heightAtLine(line) < doc.scrollTop
|
||||
updateLineHeight(line, line.height + widgetHeight(widget))
|
||||
if (aboveVisible) addToScrollTop(cm, widget.height)
|
||||
cm.curOp.forceUpdate = true
|
||||
}
|
||||
return true
|
||||
})
|
||||
if (cm) signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle))
|
||||
return widget
|
||||
}
|
||||
|
|
@ -0,0 +1,293 @@
|
|||
import { eltP } from "../util/dom.js"
|
||||
import { eventMixin, hasHandler, on } from "../util/event.js"
|
||||
import { endOperation, operation, runInOp, startOperation } from "../display/operations.js"
|
||||
import { clipPos, cmp, Pos } from "../line/pos.js"
|
||||
import { lineNo, updateLineHeight } from "../line/utils_line.js"
|
||||
import { clearLineMeasurementCacheFor, findViewForLine, textHeight } from "../measurement/position_measurement.js"
|
||||
import { seeReadOnlySpans, seeCollapsedSpans } from "../line/saw_special_spans.js"
|
||||
import { addMarkedSpan, conflictingCollapsedRange, getMarkedSpanFor, lineIsHidden, lineLength, MarkedSpan, removeMarkedSpan, visualLine } from "../line/spans.js"
|
||||
import { copyObj, indexOf, lst } from "../util/misc.js"
|
||||
import { signalLater } from "../util/operation_group.js"
|
||||
import { widgetHeight } from "../measurement/widgets.js"
|
||||
import { regChange, regLineChange } from "../display/view_tracking.js"
|
||||
|
||||
import { linkedDocs } from "./document_data.js"
|
||||
import { addChangeToHistory } from "./history.js"
|
||||
import { reCheckSelection } from "./selection_updates.js"
|
||||
|
||||
// TEXTMARKERS
|
||||
|
||||
// Created with markText and setBookmark methods. A TextMarker is a
|
||||
// handle that can be used to clear or find a marked position in the
|
||||
// document. Line objects hold arrays (markedSpans) containing
|
||||
// {from, to, marker} object pointing to such marker objects, and
|
||||
// indicating that such a marker is present on that line. Multiple
|
||||
// lines may point to the same marker when it spans across lines.
|
||||
// The spans will have null for their from/to properties when the
|
||||
// marker continues beyond the start/end of the line. Markers have
|
||||
// links back to the lines they currently touch.
|
||||
|
||||
// Collapsed markers have unique ids, in order to be able to order
|
||||
// them, which is needed for uniquely determining an outer marker
|
||||
// when they overlap (they may nest, but not partially overlap).
|
||||
let nextMarkerId = 0
|
||||
|
||||
export class TextMarker {
|
||||
constructor(doc, type) {
|
||||
this.lines = []
|
||||
this.type = type
|
||||
this.doc = doc
|
||||
this.id = ++nextMarkerId
|
||||
}
|
||||
|
||||
// Clear the marker.
|
||||
clear() {
|
||||
if (this.explicitlyCleared) return
|
||||
let cm = this.doc.cm, withOp = cm && !cm.curOp
|
||||
if (withOp) startOperation(cm)
|
||||
if (hasHandler(this, "clear")) {
|
||||
let found = this.find()
|
||||
if (found) signalLater(this, "clear", found.from, found.to)
|
||||
}
|
||||
let min = null, max = null
|
||||
for (let i = 0; i < this.lines.length; ++i) {
|
||||
let line = this.lines[i]
|
||||
let span = getMarkedSpanFor(line.markedSpans, this)
|
||||
if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text")
|
||||
else if (cm) {
|
||||
if (span.to != null) max = lineNo(line)
|
||||
if (span.from != null) min = lineNo(line)
|
||||
}
|
||||
line.markedSpans = removeMarkedSpan(line.markedSpans, span)
|
||||
if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
|
||||
updateLineHeight(line, textHeight(cm.display))
|
||||
}
|
||||
if (cm && this.collapsed && !cm.options.lineWrapping) for (let i = 0; i < this.lines.length; ++i) {
|
||||
let visual = visualLine(this.lines[i]), len = lineLength(visual)
|
||||
if (len > cm.display.maxLineLength) {
|
||||
cm.display.maxLine = visual
|
||||
cm.display.maxLineLength = len
|
||||
cm.display.maxLineChanged = true
|
||||
}
|
||||
}
|
||||
|
||||
if (min != null && cm && this.collapsed) regChange(cm, min, max + 1)
|
||||
this.lines.length = 0
|
||||
this.explicitlyCleared = true
|
||||
if (this.atomic && this.doc.cantEdit) {
|
||||
this.doc.cantEdit = false
|
||||
if (cm) reCheckSelection(cm.doc)
|
||||
}
|
||||
if (cm) signalLater(cm, "markerCleared", cm, this, min, max)
|
||||
if (withOp) endOperation(cm)
|
||||
if (this.parent) this.parent.clear()
|
||||
}
|
||||
|
||||
// Find the position of the marker in the document. Returns a {from,
|
||||
// to} object by default. Side can be passed to get a specific side
|
||||
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
|
||||
// Pos objects returned contain a line object, rather than a line
|
||||
// number (used to prevent looking up the same line twice).
|
||||
find(side, lineObj) {
|
||||
if (side == null && this.type == "bookmark") side = 1
|
||||
let from, to
|
||||
for (let i = 0; i < this.lines.length; ++i) {
|
||||
let line = this.lines[i]
|
||||
let span = getMarkedSpanFor(line.markedSpans, this)
|
||||
if (span.from != null) {
|
||||
from = Pos(lineObj ? line : lineNo(line), span.from)
|
||||
if (side == -1) return from
|
||||
}
|
||||
if (span.to != null) {
|
||||
to = Pos(lineObj ? line : lineNo(line), span.to)
|
||||
if (side == 1) return to
|
||||
}
|
||||
}
|
||||
return from && {from: from, to: to}
|
||||
}
|
||||
|
||||
// Signals that the marker's widget changed, and surrounding layout
|
||||
// should be recomputed.
|
||||
changed() {
|
||||
let pos = this.find(-1, true), widget = this, cm = this.doc.cm
|
||||
if (!pos || !cm) return
|
||||
runInOp(cm, () => {
|
||||
let line = pos.line, lineN = lineNo(pos.line)
|
||||
let view = findViewForLine(cm, lineN)
|
||||
if (view) {
|
||||
clearLineMeasurementCacheFor(view)
|
||||
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
|
||||
}
|
||||
cm.curOp.updateMaxLine = true
|
||||
if (!lineIsHidden(widget.doc, line) && widget.height != null) {
|
||||
let oldHeight = widget.height
|
||||
widget.height = null
|
||||
let dHeight = widgetHeight(widget) - oldHeight
|
||||
if (dHeight)
|
||||
updateLineHeight(line, line.height + dHeight)
|
||||
}
|
||||
signalLater(cm, "markerChanged", cm, this)
|
||||
})
|
||||
}
|
||||
|
||||
attachLine(line) {
|
||||
if (!this.lines.length && this.doc.cm) {
|
||||
let op = this.doc.cm.curOp
|
||||
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
|
||||
(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this)
|
||||
}
|
||||
this.lines.push(line)
|
||||
}
|
||||
|
||||
detachLine(line) {
|
||||
this.lines.splice(indexOf(this.lines, line), 1)
|
||||
if (!this.lines.length && this.doc.cm) {
|
||||
let op = this.doc.cm.curOp
|
||||
;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
|
||||
}
|
||||
}
|
||||
}
|
||||
eventMixin(TextMarker)
|
||||
|
||||
// Create a marker, wire it up to the right lines, and
|
||||
export function markText(doc, from, to, options, type) {
|
||||
// Shared markers (across linked documents) are handled separately
|
||||
// (markTextShared will call out to this again, once per
|
||||
// document).
|
||||
if (options && options.shared) return markTextShared(doc, from, to, options, type)
|
||||
// Ensure we are in an operation.
|
||||
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type)
|
||||
|
||||
let marker = new TextMarker(doc, type), diff = cmp(from, to)
|
||||
if (options) copyObj(options, marker, false)
|
||||
// Don't connect empty markers unless clearWhenEmpty is false
|
||||
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
|
||||
return marker
|
||||
if (marker.replacedWith) {
|
||||
// Showing up as a widget implies collapsed (widget replaces text)
|
||||
marker.collapsed = true
|
||||
marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
|
||||
if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true")
|
||||
if (options.insertLeft) marker.widgetNode.insertLeft = true
|
||||
}
|
||||
if (marker.collapsed) {
|
||||
if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
|
||||
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
|
||||
throw new Error("Inserting collapsed marker partially overlapping an existing one")
|
||||
seeCollapsedSpans()
|
||||
}
|
||||
|
||||
if (marker.addToHistory)
|
||||
addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN)
|
||||
|
||||
let curLine = from.line, cm = doc.cm, updateMaxLine
|
||||
doc.iter(curLine, to.line + 1, line => {
|
||||
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
|
||||
updateMaxLine = true
|
||||
if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0)
|
||||
addMarkedSpan(line, new MarkedSpan(marker,
|
||||
curLine == from.line ? from.ch : null,
|
||||
curLine == to.line ? to.ch : null))
|
||||
++curLine
|
||||
})
|
||||
// lineIsHidden depends on the presence of the spans, so needs a second pass
|
||||
if (marker.collapsed) doc.iter(from.line, to.line + 1, line => {
|
||||
if (lineIsHidden(doc, line)) updateLineHeight(line, 0)
|
||||
})
|
||||
|
||||
if (marker.clearOnEnter) on(marker, "beforeCursorEnter", () => marker.clear())
|
||||
|
||||
if (marker.readOnly) {
|
||||
seeReadOnlySpans()
|
||||
if (doc.history.done.length || doc.history.undone.length)
|
||||
doc.clearHistory()
|
||||
}
|
||||
if (marker.collapsed) {
|
||||
marker.id = ++nextMarkerId
|
||||
marker.atomic = true
|
||||
}
|
||||
if (cm) {
|
||||
// Sync editor state
|
||||
if (updateMaxLine) cm.curOp.updateMaxLine = true
|
||||
if (marker.collapsed)
|
||||
regChange(cm, from.line, to.line + 1)
|
||||
else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
|
||||
marker.attributes || marker.title)
|
||||
for (let i = from.line; i <= to.line; i++) regLineChange(cm, i, "text")
|
||||
if (marker.atomic) reCheckSelection(cm.doc)
|
||||
signalLater(cm, "markerAdded", cm, marker)
|
||||
}
|
||||
return marker
|
||||
}
|
||||
|
||||
// SHARED TEXTMARKERS
|
||||
|
||||
// A shared marker spans multiple linked documents. It is
|
||||
// implemented as a meta-marker-object controlling multiple normal
|
||||
// markers.
|
||||
export class SharedTextMarker {
|
||||
constructor(markers, primary) {
|
||||
this.markers = markers
|
||||
this.primary = primary
|
||||
for (let i = 0; i < markers.length; ++i)
|
||||
markers[i].parent = this
|
||||
}
|
||||
|
||||
clear() {
|
||||
if (this.explicitlyCleared) return
|
||||
this.explicitlyCleared = true
|
||||
for (let i = 0; i < this.markers.length; ++i)
|
||||
this.markers[i].clear()
|
||||
signalLater(this, "clear")
|
||||
}
|
||||
|
||||
find(side, lineObj) {
|
||||
return this.primary.find(side, lineObj)
|
||||
}
|
||||
}
|
||||
eventMixin(SharedTextMarker)
|
||||
|
||||
function markTextShared(doc, from, to, options, type) {
|
||||
options = copyObj(options)
|
||||
options.shared = false
|
||||
let markers = [markText(doc, from, to, options, type)], primary = markers[0]
|
||||
let widget = options.widgetNode
|
||||
linkedDocs(doc, doc => {
|
||||
if (widget) options.widgetNode = widget.cloneNode(true)
|
||||
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
|
||||
for (let i = 0; i < doc.linked.length; ++i)
|
||||
if (doc.linked[i].isParent) return
|
||||
primary = lst(markers)
|
||||
})
|
||||
return new SharedTextMarker(markers, primary)
|
||||
}
|
||||
|
||||
export function findSharedMarkers(doc) {
|
||||
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), m => m.parent)
|
||||
}
|
||||
|
||||
export function copySharedMarkers(doc, markers) {
|
||||
for (let i = 0; i < markers.length; i++) {
|
||||
let marker = markers[i], pos = marker.find()
|
||||
let mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
|
||||
if (cmp(mFrom, mTo)) {
|
||||
let subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
|
||||
marker.markers.push(subMark)
|
||||
subMark.parent = marker
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export function detachSharedMarkers(markers) {
|
||||
for (let i = 0; i < markers.length; i++) {
|
||||
let marker = markers[i], linked = [marker.primary.doc]
|
||||
linkedDocs(marker.primary.doc, d => linked.push(d))
|
||||
for (let j = 0; j < marker.markers.length; j++) {
|
||||
let subMarker = marker.markers[j]
|
||||
if (indexOf(linked, subMarker.doc) == -1) {
|
||||
subMarker.parent = null
|
||||
marker.markers.splice(j--, 1)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
import { cmp, copyPos, equalCursorPos, maxPos, minPos } from "../line/pos.js"
|
||||
import { indexOf } from "../util/misc.js"
|
||||
|
||||
// Selection objects are immutable. A new one is created every time
|
||||
// the selection changes. A selection is one or more non-overlapping
|
||||
// (and non-touching) ranges, sorted, and an integer that indicates
|
||||
// which one is the primary selection (the one that's scrolled into
|
||||
// view, that getCursor returns, etc).
|
||||
export class Selection {
|
||||
constructor(ranges, primIndex) {
|
||||
this.ranges = ranges
|
||||
this.primIndex = primIndex
|
||||
}
|
||||
|
||||
primary() { return this.ranges[this.primIndex] }
|
||||
|
||||
equals(other) {
|
||||
if (other == this) return true
|
||||
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false
|
||||
for (let i = 0; i < this.ranges.length; i++) {
|
||||
let here = this.ranges[i], there = other.ranges[i]
|
||||
if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
deepCopy() {
|
||||
let out = []
|
||||
for (let i = 0; i < this.ranges.length; i++)
|
||||
out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head))
|
||||
return new Selection(out, this.primIndex)
|
||||
}
|
||||
|
||||
somethingSelected() {
|
||||
for (let i = 0; i < this.ranges.length; i++)
|
||||
if (!this.ranges[i].empty()) return true
|
||||
return false
|
||||
}
|
||||
|
||||
contains(pos, end) {
|
||||
if (!end) end = pos
|
||||
for (let i = 0; i < this.ranges.length; i++) {
|
||||
let range = this.ranges[i]
|
||||
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
|
||||
return i
|
||||
}
|
||||
return -1
|
||||
}
|
||||
}
|
||||
|
||||
export class Range {
|
||||
constructor(anchor, head) {
|
||||
this.anchor = anchor; this.head = head
|
||||
}
|
||||
|
||||
from() { return minPos(this.anchor, this.head) }
|
||||
to() { return maxPos(this.anchor, this.head) }
|
||||
empty() { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }
|
||||
}
|
||||
|
||||
// Take an unsorted, potentially overlapping set of ranges, and
|
||||
// build a selection out of it. 'Consumes' ranges array (modifying
|
||||
// it).
|
||||
export function normalizeSelection(cm, ranges, primIndex) {
|
||||
let mayTouch = cm && cm.options.selectionsMayTouch
|
||||
let prim = ranges[primIndex]
|
||||
ranges.sort((a, b) => cmp(a.from(), b.from()))
|
||||
primIndex = indexOf(ranges, prim)
|
||||
for (let i = 1; i < ranges.length; i++) {
|
||||
let cur = ranges[i], prev = ranges[i - 1]
|
||||
let diff = cmp(prev.to(), cur.from())
|
||||
if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
|
||||
let from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
|
||||
let inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
|
||||
if (i <= primIndex) --primIndex
|
||||
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
|
||||
}
|
||||
}
|
||||
return new Selection(ranges, primIndex)
|
||||
}
|
||||
|
||||
export function simpleSelection(anchor, head) {
|
||||
return new Selection([new Range(anchor, head || anchor)], 0)
|
||||
}
|
||||
|
|
@ -0,0 +1,216 @@
|
|||
import { signalLater } from "../util/operation_group.js"
|
||||
import { ensureCursorVisible } from "../display/scrolling.js"
|
||||
import { clipPos, cmp, Pos } from "../line/pos.js"
|
||||
import { getLine } from "../line/utils_line.js"
|
||||
import { hasHandler, signal, signalCursorActivity } from "../util/event.js"
|
||||
import { lst, sel_dontScroll } from "../util/misc.js"
|
||||
|
||||
import { addSelectionToHistory } from "./history.js"
|
||||
import { normalizeSelection, Range, Selection, simpleSelection } from "./selection.js"
|
||||
|
||||
// The 'scroll' parameter given to many of these indicated whether
|
||||
// the new cursor position should be scrolled into view after
|
||||
// modifying the selection.
|
||||
|
||||
// If shift is held or the extend flag is set, extends a range to
|
||||
// include a given position (and optionally a second position).
|
||||
// Otherwise, simply returns the range between the given positions.
|
||||
// Used for cursor motion and such.
|
||||
export function extendRange(range, head, other, extend) {
|
||||
if (extend) {
|
||||
let anchor = range.anchor
|
||||
if (other) {
|
||||
let posBefore = cmp(head, anchor) < 0
|
||||
if (posBefore != (cmp(other, anchor) < 0)) {
|
||||
anchor = head
|
||||
head = other
|
||||
} else if (posBefore != (cmp(head, other) < 0)) {
|
||||
head = other
|
||||
}
|
||||
}
|
||||
return new Range(anchor, head)
|
||||
} else {
|
||||
return new Range(other || head, head)
|
||||
}
|
||||
}
|
||||
|
||||
// Extend the primary selection range, discard the rest.
|
||||
export function extendSelection(doc, head, other, options, extend) {
|
||||
if (extend == null) extend = doc.cm && (doc.cm.display.shift || doc.extend)
|
||||
setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options)
|
||||
}
|
||||
|
||||
// Extend all selections (pos is an array of selections with length
|
||||
// equal the number of selections)
|
||||
export function extendSelections(doc, heads, options) {
|
||||
let out = []
|
||||
let extend = doc.cm && (doc.cm.display.shift || doc.extend)
|
||||
for (let i = 0; i < doc.sel.ranges.length; i++)
|
||||
out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend)
|
||||
let newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex)
|
||||
setSelection(doc, newSel, options)
|
||||
}
|
||||
|
||||
// Updates a single range in the selection.
|
||||
export function replaceOneSelection(doc, i, range, options) {
|
||||
let ranges = doc.sel.ranges.slice(0)
|
||||
ranges[i] = range
|
||||
setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options)
|
||||
}
|
||||
|
||||
// Reset the selection to a single range.
|
||||
export function setSimpleSelection(doc, anchor, head, options) {
|
||||
setSelection(doc, simpleSelection(anchor, head), options)
|
||||
}
|
||||
|
||||
// Give beforeSelectionChange handlers a change to influence a
|
||||
// selection update.
|
||||
function filterSelectionChange(doc, sel, options) {
|
||||
let obj = {
|
||||
ranges: sel.ranges,
|
||||
update: function(ranges) {
|
||||
this.ranges = []
|
||||
for (let i = 0; i < ranges.length; i++)
|
||||
this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
|
||||
clipPos(doc, ranges[i].head))
|
||||
},
|
||||
origin: options && options.origin
|
||||
}
|
||||
signal(doc, "beforeSelectionChange", doc, obj)
|
||||
if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj)
|
||||
if (obj.ranges != sel.ranges) return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1)
|
||||
else return sel
|
||||
}
|
||||
|
||||
export function setSelectionReplaceHistory(doc, sel, options) {
|
||||
let done = doc.history.done, last = lst(done)
|
||||
if (last && last.ranges) {
|
||||
done[done.length - 1] = sel
|
||||
setSelectionNoUndo(doc, sel, options)
|
||||
} else {
|
||||
setSelection(doc, sel, options)
|
||||
}
|
||||
}
|
||||
|
||||
// Set a new selection.
|
||||
export function setSelection(doc, sel, options) {
|
||||
setSelectionNoUndo(doc, sel, options)
|
||||
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
|
||||
}
|
||||
|
||||
export function setSelectionNoUndo(doc, sel, options) {
|
||||
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
|
||||
sel = filterSelectionChange(doc, sel, options)
|
||||
|
||||
let bias = options && options.bias ||
|
||||
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
|
||||
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
|
||||
|
||||
if (!(options && options.scroll === false) && doc.cm)
|
||||
ensureCursorVisible(doc.cm)
|
||||
}
|
||||
|
||||
function setSelectionInner(doc, sel) {
|
||||
if (sel.equals(doc.sel)) return
|
||||
|
||||
doc.sel = sel
|
||||
|
||||
if (doc.cm) {
|
||||
doc.cm.curOp.updateInput = 1
|
||||
doc.cm.curOp.selectionChanged = true
|
||||
signalCursorActivity(doc.cm)
|
||||
}
|
||||
signalLater(doc, "cursorActivity", doc)
|
||||
}
|
||||
|
||||
// Verify that the selection does not partially select any atomic
|
||||
// marked ranges.
|
||||
export function reCheckSelection(doc) {
|
||||
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false))
|
||||
}
|
||||
|
||||
// Return a selection that does not partially select any atomic
|
||||
// ranges.
|
||||
function skipAtomicInSelection(doc, sel, bias, mayClear) {
|
||||
let out
|
||||
for (let i = 0; i < sel.ranges.length; i++) {
|
||||
let range = sel.ranges[i]
|
||||
let old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
|
||||
let newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
|
||||
let newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
|
||||
if (out || newAnchor != range.anchor || newHead != range.head) {
|
||||
if (!out) out = sel.ranges.slice(0, i)
|
||||
out[i] = new Range(newAnchor, newHead)
|
||||
}
|
||||
}
|
||||
return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
|
||||
}
|
||||
|
||||
function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
|
||||
let line = getLine(doc, pos.line)
|
||||
if (line.markedSpans) for (let i = 0; i < line.markedSpans.length; ++i) {
|
||||
let sp = line.markedSpans[i], m = sp.marker
|
||||
|
||||
// Determine if we should prevent the cursor being placed to the left/right of an atomic marker
|
||||
// Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
|
||||
// is with selectLeft/Right
|
||||
let preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft
|
||||
let preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight
|
||||
|
||||
if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
|
||||
(sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
|
||||
if (mayClear) {
|
||||
signal(m, "beforeCursorEnter")
|
||||
if (m.explicitlyCleared) {
|
||||
if (!line.markedSpans) break
|
||||
else {--i; continue}
|
||||
}
|
||||
}
|
||||
if (!m.atomic) continue
|
||||
|
||||
if (oldPos) {
|
||||
let near = m.find(dir < 0 ? 1 : -1), diff
|
||||
if (dir < 0 ? preventCursorRight : preventCursorLeft)
|
||||
near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null)
|
||||
if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
|
||||
return skipAtomicInner(doc, near, pos, dir, mayClear)
|
||||
}
|
||||
|
||||
let far = m.find(dir < 0 ? -1 : 1)
|
||||
if (dir < 0 ? preventCursorLeft : preventCursorRight)
|
||||
far = movePos(doc, far, dir, far.line == pos.line ? line : null)
|
||||
return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
|
||||
}
|
||||
}
|
||||
return pos
|
||||
}
|
||||
|
||||
// Ensure a given position is not inside an atomic range.
|
||||
export function skipAtomic(doc, pos, oldPos, bias, mayClear) {
|
||||
let dir = bias || 1
|
||||
let found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
|
||||
(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
|
||||
skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
|
||||
(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
|
||||
if (!found) {
|
||||
doc.cantEdit = true
|
||||
return Pos(doc.first, 0)
|
||||
}
|
||||
return found
|
||||
}
|
||||
|
||||
function movePos(doc, pos, dir, line) {
|
||||
if (dir < 0 && pos.ch == 0) {
|
||||
if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1))
|
||||
else return null
|
||||
} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
|
||||
if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0)
|
||||
else return null
|
||||
} else {
|
||||
return new Pos(pos.line, pos.ch + dir)
|
||||
}
|
||||
}
|
||||
|
||||
export function selectAll(cm) {
|
||||
cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
|
||||
}
|
||||
|
|
@ -0,0 +1,96 @@
|
|||
import { copyObj, createObj } from "./util/misc.js"
|
||||
|
||||
// Known modes, by name and by MIME
|
||||
export let modes = {}, mimeModes = {}
|
||||
|
||||
// Extra arguments are stored as the mode's dependencies, which is
|
||||
// used by (legacy) mechanisms like loadmode.js to automatically
|
||||
// load a mode. (Preferred mechanism is the require/define calls.)
|
||||
export function defineMode(name, mode) {
|
||||
if (arguments.length > 2)
|
||||
mode.dependencies = Array.prototype.slice.call(arguments, 2)
|
||||
modes[name] = mode
|
||||
}
|
||||
|
||||
export function defineMIME(mime, spec) {
|
||||
mimeModes[mime] = spec
|
||||
}
|
||||
|
||||
// Given a MIME type, a {name, ...options} config object, or a name
|
||||
// string, return a mode config object.
|
||||
export function resolveMode(spec) {
|
||||
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
|
||||
spec = mimeModes[spec]
|
||||
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
|
||||
let found = mimeModes[spec.name]
|
||||
if (typeof found == "string") found = {name: found}
|
||||
spec = createObj(found, spec)
|
||||
spec.name = found.name
|
||||
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
|
||||
return resolveMode("application/xml")
|
||||
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
|
||||
return resolveMode("application/json")
|
||||
}
|
||||
if (typeof spec == "string") return {name: spec}
|
||||
else return spec || {name: "null"}
|
||||
}
|
||||
|
||||
// Given a mode spec (anything that resolveMode accepts), find and
|
||||
// initialize an actual mode object.
|
||||
export function getMode(options, spec) {
|
||||
spec = resolveMode(spec)
|
||||
let mfactory = modes[spec.name]
|
||||
if (!mfactory) return getMode(options, "text/plain")
|
||||
let modeObj = mfactory(options, spec)
|
||||
if (modeExtensions.hasOwnProperty(spec.name)) {
|
||||
let exts = modeExtensions[spec.name]
|
||||
for (let prop in exts) {
|
||||
if (!exts.hasOwnProperty(prop)) continue
|
||||
if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]
|
||||
modeObj[prop] = exts[prop]
|
||||
}
|
||||
}
|
||||
modeObj.name = spec.name
|
||||
if (spec.helperType) modeObj.helperType = spec.helperType
|
||||
if (spec.modeProps) for (let prop in spec.modeProps)
|
||||
modeObj[prop] = spec.modeProps[prop]
|
||||
|
||||
return modeObj
|
||||
}
|
||||
|
||||
// This can be used to attach properties to mode objects from
|
||||
// outside the actual mode definition.
|
||||
export let modeExtensions = {}
|
||||
export function extendMode(mode, properties) {
|
||||
let exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
|
||||
copyObj(properties, exts)
|
||||
}
|
||||
|
||||
export function copyState(mode, state) {
|
||||
if (state === true) return state
|
||||
if (mode.copyState) return mode.copyState(state)
|
||||
let nstate = {}
|
||||
for (let n in state) {
|
||||
let val = state[n]
|
||||
if (val instanceof Array) val = val.concat([])
|
||||
nstate[n] = val
|
||||
}
|
||||
return nstate
|
||||
}
|
||||
|
||||
// Given a mode and a state (for that mode), find the inner mode and
|
||||
// state at the position that the state refers to.
|
||||
export function innerMode(mode, state) {
|
||||
let info
|
||||
while (mode.innerMode) {
|
||||
info = mode.innerMode(state)
|
||||
if (!info || info.mode == mode) break
|
||||
state = info.state
|
||||
mode = info.mode
|
||||
}
|
||||
return info || {mode: mode, state: state}
|
||||
}
|
||||
|
||||
export function startState(mode, a1, a2) {
|
||||
return mode.startState ? mode.startState(a1, a2) : true
|
||||
}
|
||||
|
|
@ -0,0 +1,90 @@
|
|||
import { countColumn } from "./misc.js"
|
||||
|
||||
// STRING STREAM
|
||||
|
||||
// Fed to the mode parsers, provides helper functions to make
|
||||
// parsers more succinct.
|
||||
|
||||
class StringStream {
|
||||
constructor(string, tabSize, lineOracle) {
|
||||
this.pos = this.start = 0
|
||||
this.string = string
|
||||
this.tabSize = tabSize || 8
|
||||
this.lastColumnPos = this.lastColumnValue = 0
|
||||
this.lineStart = 0
|
||||
this.lineOracle = lineOracle
|
||||
}
|
||||
|
||||
eol() {return this.pos >= this.string.length}
|
||||
sol() {return this.pos == this.lineStart}
|
||||
peek() {return this.string.charAt(this.pos) || undefined}
|
||||
next() {
|
||||
if (this.pos < this.string.length)
|
||||
return this.string.charAt(this.pos++)
|
||||
}
|
||||
eat(match) {
|
||||
let ch = this.string.charAt(this.pos)
|
||||
let ok
|
||||
if (typeof match == "string") ok = ch == match
|
||||
else ok = ch && (match.test ? match.test(ch) : match(ch))
|
||||
if (ok) {++this.pos; return ch}
|
||||
}
|
||||
eatWhile(match) {
|
||||
let start = this.pos
|
||||
while (this.eat(match)){}
|
||||
return this.pos > start
|
||||
}
|
||||
eatSpace() {
|
||||
let start = this.pos
|
||||
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos
|
||||
return this.pos > start
|
||||
}
|
||||
skipToEnd() {this.pos = this.string.length}
|
||||
skipTo(ch) {
|
||||
let found = this.string.indexOf(ch, this.pos)
|
||||
if (found > -1) {this.pos = found; return true}
|
||||
}
|
||||
backUp(n) {this.pos -= n}
|
||||
column() {
|
||||
if (this.lastColumnPos < this.start) {
|
||||
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
|
||||
this.lastColumnPos = this.start
|
||||
}
|
||||
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
|
||||
}
|
||||
indentation() {
|
||||
return countColumn(this.string, null, this.tabSize) -
|
||||
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
|
||||
}
|
||||
match(pattern, consume, caseInsensitive) {
|
||||
if (typeof pattern == "string") {
|
||||
let cased = str => caseInsensitive ? str.toLowerCase() : str
|
||||
let substr = this.string.substr(this.pos, pattern.length)
|
||||
if (cased(substr) == cased(pattern)) {
|
||||
if (consume !== false) this.pos += pattern.length
|
||||
return true
|
||||
}
|
||||
} else {
|
||||
let match = this.string.slice(this.pos).match(pattern)
|
||||
if (match && match.index > 0) return null
|
||||
if (match && consume !== false) this.pos += match[0].length
|
||||
return match
|
||||
}
|
||||
}
|
||||
current(){return this.string.slice(this.start, this.pos)}
|
||||
hideFirstChars(n, inner) {
|
||||
this.lineStart += n
|
||||
try { return inner() }
|
||||
finally { this.lineStart -= n }
|
||||
}
|
||||
lookAhead(n) {
|
||||
let oracle = this.lineOracle
|
||||
return oracle && oracle.lookAhead(n)
|
||||
}
|
||||
baseToken() {
|
||||
let oracle = this.lineOracle
|
||||
return oracle && oracle.baseToken(this.pos)
|
||||
}
|
||||
}
|
||||
|
||||
export default StringStream
|
||||
|
|
@ -0,0 +1,215 @@
|
|||
import { lst } from "./misc.js"
|
||||
|
||||
// BIDI HELPERS
|
||||
|
||||
export function iterateBidiSections(order, from, to, f) {
|
||||
if (!order) return f(from, to, "ltr", 0)
|
||||
let found = false
|
||||
for (let i = 0; i < order.length; ++i) {
|
||||
let part = order[i]
|
||||
if (part.from < to && part.to > from || from == to && part.to == from) {
|
||||
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i)
|
||||
found = true
|
||||
}
|
||||
}
|
||||
if (!found) f(from, to, "ltr")
|
||||
}
|
||||
|
||||
export let bidiOther = null
|
||||
export function getBidiPartAt(order, ch, sticky) {
|
||||
let found
|
||||
bidiOther = null
|
||||
for (let i = 0; i < order.length; ++i) {
|
||||
let cur = order[i]
|
||||
if (cur.from < ch && cur.to > ch) return i
|
||||
if (cur.to == ch) {
|
||||
if (cur.from != cur.to && sticky == "before") found = i
|
||||
else bidiOther = i
|
||||
}
|
||||
if (cur.from == ch) {
|
||||
if (cur.from != cur.to && sticky != "before") found = i
|
||||
else bidiOther = i
|
||||
}
|
||||
}
|
||||
return found != null ? found : bidiOther
|
||||
}
|
||||
|
||||
// Bidirectional ordering algorithm
|
||||
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
|
||||
// that this (partially) implements.
|
||||
|
||||
// One-char codes used for character types:
|
||||
// L (L): Left-to-Right
|
||||
// R (R): Right-to-Left
|
||||
// r (AL): Right-to-Left Arabic
|
||||
// 1 (EN): European Number
|
||||
// + (ES): European Number Separator
|
||||
// % (ET): European Number Terminator
|
||||
// n (AN): Arabic Number
|
||||
// , (CS): Common Number Separator
|
||||
// m (NSM): Non-Spacing Mark
|
||||
// b (BN): Boundary Neutral
|
||||
// s (B): Paragraph Separator
|
||||
// t (S): Segment Separator
|
||||
// w (WS): Whitespace
|
||||
// N (ON): Other Neutrals
|
||||
|
||||
// Returns null if characters are ordered as they appear
|
||||
// (left-to-right), or an array of sections ({from, to, level}
|
||||
// objects) in the order in which they occur visually.
|
||||
let bidiOrdering = (function() {
|
||||
// Character types for codepoints 0 to 0xff
|
||||
let lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
|
||||
// Character types for codepoints 0x600 to 0x6f9
|
||||
let arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"
|
||||
function charType(code) {
|
||||
if (code <= 0xf7) return lowTypes.charAt(code)
|
||||
else if (0x590 <= code && code <= 0x5f4) return "R"
|
||||
else if (0x600 <= code && code <= 0x6f9) return arabicTypes.charAt(code - 0x600)
|
||||
else if (0x6ee <= code && code <= 0x8ac) return "r"
|
||||
else if (0x2000 <= code && code <= 0x200b) return "w"
|
||||
else if (code == 0x200c) return "b"
|
||||
else return "L"
|
||||
}
|
||||
|
||||
let bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
|
||||
let isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
|
||||
|
||||
function BidiSpan(level, from, to) {
|
||||
this.level = level
|
||||
this.from = from; this.to = to
|
||||
}
|
||||
|
||||
return function(str, direction) {
|
||||
let outerType = direction == "ltr" ? "L" : "R"
|
||||
|
||||
if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) return false
|
||||
let len = str.length, types = []
|
||||
for (let i = 0; i < len; ++i)
|
||||
types.push(charType(str.charCodeAt(i)))
|
||||
|
||||
// W1. Examine each non-spacing mark (NSM) in the level run, and
|
||||
// change the type of the NSM to the type of the previous
|
||||
// character. If the NSM is at the start of the level run, it will
|
||||
// get the type of sor.
|
||||
for (let i = 0, prev = outerType; i < len; ++i) {
|
||||
let type = types[i]
|
||||
if (type == "m") types[i] = prev
|
||||
else prev = type
|
||||
}
|
||||
|
||||
// W2. Search backwards from each instance of a European number
|
||||
// until the first strong type (R, L, AL, or sor) is found. If an
|
||||
// AL is found, change the type of the European number to Arabic
|
||||
// number.
|
||||
// W3. Change all ALs to R.
|
||||
for (let i = 0, cur = outerType; i < len; ++i) {
|
||||
let type = types[i]
|
||||
if (type == "1" && cur == "r") types[i] = "n"
|
||||
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R" }
|
||||
}
|
||||
|
||||
// W4. A single European separator between two European numbers
|
||||
// changes to a European number. A single common separator between
|
||||
// two numbers of the same type changes to that type.
|
||||
for (let i = 1, prev = types[0]; i < len - 1; ++i) {
|
||||
let type = types[i]
|
||||
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"
|
||||
else if (type == "," && prev == types[i+1] &&
|
||||
(prev == "1" || prev == "n")) types[i] = prev
|
||||
prev = type
|
||||
}
|
||||
|
||||
// W5. A sequence of European terminators adjacent to European
|
||||
// numbers changes to all European numbers.
|
||||
// W6. Otherwise, separators and terminators change to Other
|
||||
// Neutral.
|
||||
for (let i = 0; i < len; ++i) {
|
||||
let type = types[i]
|
||||
if (type == ",") types[i] = "N"
|
||||
else if (type == "%") {
|
||||
let end
|
||||
for (end = i + 1; end < len && types[end] == "%"; ++end) {}
|
||||
let replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
|
||||
for (let j = i; j < end; ++j) types[j] = replace
|
||||
i = end - 1
|
||||
}
|
||||
}
|
||||
|
||||
// W7. Search backwards from each instance of a European number
|
||||
// until the first strong type (R, L, or sor) is found. If an L is
|
||||
// found, then change the type of the European number to L.
|
||||
for (let i = 0, cur = outerType; i < len; ++i) {
|
||||
let type = types[i]
|
||||
if (cur == "L" && type == "1") types[i] = "L"
|
||||
else if (isStrong.test(type)) cur = type
|
||||
}
|
||||
|
||||
// N1. A sequence of neutrals takes the direction of the
|
||||
// surrounding strong text if the text on both sides has the same
|
||||
// direction. European and Arabic numbers act as if they were R in
|
||||
// terms of their influence on neutrals. Start-of-level-run (sor)
|
||||
// and end-of-level-run (eor) are used at level run boundaries.
|
||||
// N2. Any remaining neutrals take the embedding direction.
|
||||
for (let i = 0; i < len; ++i) {
|
||||
if (isNeutral.test(types[i])) {
|
||||
let end
|
||||
for (end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
|
||||
let before = (i ? types[i-1] : outerType) == "L"
|
||||
let after = (end < len ? types[end] : outerType) == "L"
|
||||
let replace = before == after ? (before ? "L" : "R") : outerType
|
||||
for (let j = i; j < end; ++j) types[j] = replace
|
||||
i = end - 1
|
||||
}
|
||||
}
|
||||
|
||||
// Here we depart from the documented algorithm, in order to avoid
|
||||
// building up an actual levels array. Since there are only three
|
||||
// levels (0, 1, 2) in an implementation that doesn't take
|
||||
// explicit embedding into account, we can build up the order on
|
||||
// the fly, without following the level-based algorithm.
|
||||
let order = [], m
|
||||
for (let i = 0; i < len;) {
|
||||
if (countsAsLeft.test(types[i])) {
|
||||
let start = i
|
||||
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
|
||||
order.push(new BidiSpan(0, start, i))
|
||||
} else {
|
||||
let pos = i, at = order.length, isRTL = direction == "rtl" ? 1 : 0
|
||||
for (++i; i < len && types[i] != "L"; ++i) {}
|
||||
for (let j = pos; j < i;) {
|
||||
if (countsAsNum.test(types[j])) {
|
||||
if (pos < j) { order.splice(at, 0, new BidiSpan(1, pos, j)); at += isRTL }
|
||||
let nstart = j
|
||||
for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
|
||||
order.splice(at, 0, new BidiSpan(2, nstart, j))
|
||||
at += isRTL
|
||||
pos = j
|
||||
} else ++j
|
||||
}
|
||||
if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i))
|
||||
}
|
||||
}
|
||||
if (direction == "ltr") {
|
||||
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
|
||||
order[0].from = m[0].length
|
||||
order.unshift(new BidiSpan(0, 0, m[0].length))
|
||||
}
|
||||
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
|
||||
lst(order).to -= m[0].length
|
||||
order.push(new BidiSpan(0, len - m[0].length, len))
|
||||
}
|
||||
}
|
||||
|
||||
return direction == "rtl" ? order.reverse() : order
|
||||
}
|
||||
})()
|
||||
|
||||
// Get the bidi ordering for the given line (and cache it). Returns
|
||||
// false for lines that are fully left-to-right, and an array of
|
||||
// BidiSpan objects otherwise.
|
||||
export function getOrder(line, direction) {
|
||||
let order = line.order
|
||||
if (order == null) order = line.order = bidiOrdering(line.text, direction)
|
||||
return order
|
||||
}
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
// Kludges for bugs and behavior differences that can't be feature
|
||||
// detected are enabled based on userAgent etc sniffing.
|
||||
let userAgent = navigator.userAgent
|
||||
let platform = navigator.platform
|
||||
|
||||
export let gecko = /gecko\/\d/i.test(userAgent)
|
||||
let ie_upto10 = /MSIE \d/.test(userAgent)
|
||||
let ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
|
||||
let edge = /Edge\/(\d+)/.exec(userAgent)
|
||||
export let ie = ie_upto10 || ie_11up || edge
|
||||
export let ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])
|
||||
export let webkit = !edge && /WebKit\//.test(userAgent)
|
||||
let qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
|
||||
export let chrome = !edge && /Chrome\//.test(userAgent)
|
||||
export let presto = /Opera\//.test(userAgent)
|
||||
export let safari = /Apple Computer/.test(navigator.vendor)
|
||||
export let mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
|
||||
export let phantom = /PhantomJS/.test(userAgent)
|
||||
|
||||
export let ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
|
||||
export let android = /Android/.test(userAgent)
|
||||
// This is woefully incomplete. Suggestions for alternative methods welcome.
|
||||
export let mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
|
||||
export let mac = ios || /Mac/.test(platform)
|
||||
export let chromeOS = /\bCrOS\b/.test(userAgent)
|
||||
export let windows = /win/i.test(platform)
|
||||
|
||||
let presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
|
||||
if (presto_version) presto_version = Number(presto_version[1])
|
||||
if (presto_version && presto_version >= 15) { presto = false; webkit = true }
|
||||
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
|
||||
export let flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
|
||||
export let captureRightClick = gecko || (ie && ie_version >= 9)
|
||||
|
|
@ -0,0 +1,97 @@
|
|||
import { ie, ios } from "./browser.js"
|
||||
|
||||
export function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
|
||||
|
||||
export let rmClass = function(node, cls) {
|
||||
let current = node.className
|
||||
let match = classTest(cls).exec(current)
|
||||
if (match) {
|
||||
let after = current.slice(match.index + match[0].length)
|
||||
node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
|
||||
}
|
||||
}
|
||||
|
||||
export function removeChildren(e) {
|
||||
for (let count = e.childNodes.length; count > 0; --count)
|
||||
e.removeChild(e.firstChild)
|
||||
return e
|
||||
}
|
||||
|
||||
export function removeChildrenAndAdd(parent, e) {
|
||||
return removeChildren(parent).appendChild(e)
|
||||
}
|
||||
|
||||
export function elt(tag, content, className, style) {
|
||||
let e = document.createElement(tag)
|
||||
if (className) e.className = className
|
||||
if (style) e.style.cssText = style
|
||||
if (typeof content == "string") e.appendChild(document.createTextNode(content))
|
||||
else if (content) for (let i = 0; i < content.length; ++i) e.appendChild(content[i])
|
||||
return e
|
||||
}
|
||||
// wrapper for elt, which removes the elt from the accessibility tree
|
||||
export function eltP(tag, content, className, style) {
|
||||
let e = elt(tag, content, className, style)
|
||||
e.setAttribute("role", "presentation")
|
||||
return e
|
||||
}
|
||||
|
||||
export let range
|
||||
if (document.createRange) range = function(node, start, end, endNode) {
|
||||
let r = document.createRange()
|
||||
r.setEnd(endNode || node, end)
|
||||
r.setStart(node, start)
|
||||
return r
|
||||
}
|
||||
else range = function(node, start, end) {
|
||||
let r = document.body.createTextRange()
|
||||
try { r.moveToElementText(node.parentNode) }
|
||||
catch(e) { return r }
|
||||
r.collapse(true)
|
||||
r.moveEnd("character", end)
|
||||
r.moveStart("character", start)
|
||||
return r
|
||||
}
|
||||
|
||||
export function contains(parent, child) {
|
||||
if (child.nodeType == 3) // Android browser always returns false when child is a textnode
|
||||
child = child.parentNode
|
||||
if (parent.contains)
|
||||
return parent.contains(child)
|
||||
do {
|
||||
if (child.nodeType == 11) child = child.host
|
||||
if (child == parent) return true
|
||||
} while (child = child.parentNode)
|
||||
}
|
||||
|
||||
export function activeElt() {
|
||||
// IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
|
||||
// IE < 10 will throw when accessed while the page is loading or in an iframe.
|
||||
// IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
|
||||
let activeElement
|
||||
try {
|
||||
activeElement = document.activeElement
|
||||
} catch(e) {
|
||||
activeElement = document.body || null
|
||||
}
|
||||
while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
|
||||
activeElement = activeElement.shadowRoot.activeElement
|
||||
return activeElement
|
||||
}
|
||||
|
||||
export function addClass(node, cls) {
|
||||
let current = node.className
|
||||
if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls
|
||||
}
|
||||
export function joinClasses(a, b) {
|
||||
let as = a.split(" ")
|
||||
for (let i = 0; i < as.length; i++)
|
||||
if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]
|
||||
return b
|
||||
}
|
||||
|
||||
export let selectInput = function(node) { node.select() }
|
||||
if (ios) // Mobile Safari apparently has a bug where select() is broken.
|
||||
selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length }
|
||||
else if (ie) // Suppress mysterious IE10 errors
|
||||
selectInput = function(node) { try { node.select() } catch(_e) {} }
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
import { mac } from "./browser.js"
|
||||
import { indexOf } from "./misc.js"
|
||||
|
||||
// EVENT HANDLING
|
||||
|
||||
// Lightweight event framework. on/off also work on DOM nodes,
|
||||
// registering native DOM handlers.
|
||||
|
||||
const noHandlers = []
|
||||
|
||||
export let on = function(emitter, type, f) {
|
||||
if (emitter.addEventListener) {
|
||||
emitter.addEventListener(type, f, false)
|
||||
} else if (emitter.attachEvent) {
|
||||
emitter.attachEvent("on" + type, f)
|
||||
} else {
|
||||
let map = emitter._handlers || (emitter._handlers = {})
|
||||
map[type] = (map[type] || noHandlers).concat(f)
|
||||
}
|
||||
}
|
||||
|
||||
export function getHandlers(emitter, type) {
|
||||
return emitter._handlers && emitter._handlers[type] || noHandlers
|
||||
}
|
||||
|
||||
export function off(emitter, type, f) {
|
||||
if (emitter.removeEventListener) {
|
||||
emitter.removeEventListener(type, f, false)
|
||||
} else if (emitter.detachEvent) {
|
||||
emitter.detachEvent("on" + type, f)
|
||||
} else {
|
||||
let map = emitter._handlers, arr = map && map[type]
|
||||
if (arr) {
|
||||
let index = indexOf(arr, f)
|
||||
if (index > -1)
|
||||
map[type] = arr.slice(0, index).concat(arr.slice(index + 1))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export function signal(emitter, type /*, values...*/) {
|
||||
let handlers = getHandlers(emitter, type)
|
||||
if (!handlers.length) return
|
||||
let args = Array.prototype.slice.call(arguments, 2)
|
||||
for (let i = 0; i < handlers.length; ++i) handlers[i].apply(null, args)
|
||||
}
|
||||
|
||||
// The DOM events that CodeMirror handles can be overridden by
|
||||
// registering a (non-DOM) handler on the editor for the event name,
|
||||
// and preventDefault-ing the event in that handler.
|
||||
export function signalDOMEvent(cm, e, override) {
|
||||
if (typeof e == "string")
|
||||
e = {type: e, preventDefault: function() { this.defaultPrevented = true }}
|
||||
signal(cm, override || e.type, cm, e)
|
||||
return e_defaultPrevented(e) || e.codemirrorIgnore
|
||||
}
|
||||
|
||||
export function signalCursorActivity(cm) {
|
||||
let arr = cm._handlers && cm._handlers.cursorActivity
|
||||
if (!arr) return
|
||||
let set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
|
||||
for (let i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
|
||||
set.push(arr[i])
|
||||
}
|
||||
|
||||
export function hasHandler(emitter, type) {
|
||||
return getHandlers(emitter, type).length > 0
|
||||
}
|
||||
|
||||
// Add on and off methods to a constructor's prototype, to make
|
||||
// registering events on such objects more convenient.
|
||||
export function eventMixin(ctor) {
|
||||
ctor.prototype.on = function(type, f) {on(this, type, f)}
|
||||
ctor.prototype.off = function(type, f) {off(this, type, f)}
|
||||
}
|
||||
|
||||
// Due to the fact that we still support jurassic IE versions, some
|
||||
// compatibility wrappers are needed.
|
||||
|
||||
export function e_preventDefault(e) {
|
||||
if (e.preventDefault) e.preventDefault()
|
||||
else e.returnValue = false
|
||||
}
|
||||
export function e_stopPropagation(e) {
|
||||
if (e.stopPropagation) e.stopPropagation()
|
||||
else e.cancelBubble = true
|
||||
}
|
||||
export function e_defaultPrevented(e) {
|
||||
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
|
||||
}
|
||||
export function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
|
||||
|
||||
export function e_target(e) {return e.target || e.srcElement}
|
||||
export function e_button(e) {
|
||||
let b = e.which
|
||||
if (b == null) {
|
||||
if (e.button & 1) b = 1
|
||||
else if (e.button & 2) b = 3
|
||||
else if (e.button & 4) b = 2
|
||||
}
|
||||
if (mac && e.ctrlKey && b == 1) b = 3
|
||||
return b
|
||||
}
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
import { elt, range, removeChildren, removeChildrenAndAdd } from "./dom.js"
|
||||
import { ie, ie_version } from "./browser.js"
|
||||
|
||||
// Detect drag-and-drop
|
||||
export let dragAndDrop = function() {
|
||||
// There is *some* kind of drag-and-drop support in IE6-8, but I
|
||||
// couldn't get it to work yet.
|
||||
if (ie && ie_version < 9) return false
|
||||
let div = elt('div')
|
||||
return "draggable" in div || "dragDrop" in div
|
||||
}()
|
||||
|
||||
let zwspSupported
|
||||
export function zeroWidthElement(measure) {
|
||||
if (zwspSupported == null) {
|
||||
let test = elt("span", "\u200b")
|
||||
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
|
||||
if (measure.firstChild.offsetHeight != 0)
|
||||
zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8)
|
||||
}
|
||||
let node = zwspSupported ? elt("span", "\u200b") :
|
||||
elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
|
||||
node.setAttribute("cm-text", "")
|
||||
return node
|
||||
}
|
||||
|
||||
// Feature-detect IE's crummy client rect reporting for bidi text
|
||||
let badBidiRects
|
||||
export function hasBadBidiRects(measure) {
|
||||
if (badBidiRects != null) return badBidiRects
|
||||
let txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
|
||||
let r0 = range(txt, 0, 1).getBoundingClientRect()
|
||||
let r1 = range(txt, 1, 2).getBoundingClientRect()
|
||||
removeChildren(measure)
|
||||
if (!r0 || r0.left == r0.right) return false // Safari returns null in some cases (#2780)
|
||||
return badBidiRects = (r1.right - r0.right < 3)
|
||||
}
|
||||
|
||||
// See if "".split is the broken IE version, if so, provide an
|
||||
// alternative way to split lines.
|
||||
export let splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? string => {
|
||||
let pos = 0, result = [], l = string.length
|
||||
while (pos <= l) {
|
||||
let nl = string.indexOf("\n", pos)
|
||||
if (nl == -1) nl = string.length
|
||||
let line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
|
||||
let rt = line.indexOf("\r")
|
||||
if (rt != -1) {
|
||||
result.push(line.slice(0, rt))
|
||||
pos += rt + 1
|
||||
} else {
|
||||
result.push(line)
|
||||
pos = nl + 1
|
||||
}
|
||||
}
|
||||
return result
|
||||
} : string => string.split(/\r\n?|\n/)
|
||||
|
||||
export let hasSelection = window.getSelection ? te => {
|
||||
try { return te.selectionStart != te.selectionEnd }
|
||||
catch(e) { return false }
|
||||
} : te => {
|
||||
let range
|
||||
try {range = te.ownerDocument.selection.createRange()}
|
||||
catch(e) {}
|
||||
if (!range || range.parentElement() != te) return false
|
||||
return range.compareEndPoints("StartToEnd", range) != 0
|
||||
}
|
||||
|
||||
export let hasCopyEvent = (() => {
|
||||
let e = elt("div")
|
||||
if ("oncopy" in e) return true
|
||||
e.setAttribute("oncopy", "return;")
|
||||
return typeof e.oncopy == "function"
|
||||
})()
|
||||
|
||||
let badZoomedRects = null
|
||||
export function hasBadZoomedRects(measure) {
|
||||
if (badZoomedRects != null) return badZoomedRects
|
||||
let node = removeChildrenAndAdd(measure, elt("span", "x"))
|
||||
let normal = node.getBoundingClientRect()
|
||||
let fromRange = range(node, 0, 1).getBoundingClientRect()
|
||||
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
|
||||
}
|
||||
|
|
@ -0,0 +1,168 @@
|
|||
export function bind(f) {
|
||||
let args = Array.prototype.slice.call(arguments, 1)
|
||||
return function(){return f.apply(null, args)}
|
||||
}
|
||||
|
||||
export function copyObj(obj, target, overwrite) {
|
||||
if (!target) target = {}
|
||||
for (let prop in obj)
|
||||
if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
|
||||
target[prop] = obj[prop]
|
||||
return target
|
||||
}
|
||||
|
||||
// Counts the column offset in a string, taking tabs into account.
|
||||
// Used mostly to find indentation.
|
||||
export function countColumn(string, end, tabSize, startIndex, startValue) {
|
||||
if (end == null) {
|
||||
end = string.search(/[^\s\u00a0]/)
|
||||
if (end == -1) end = string.length
|
||||
}
|
||||
for (let i = startIndex || 0, n = startValue || 0;;) {
|
||||
let nextTab = string.indexOf("\t", i)
|
||||
if (nextTab < 0 || nextTab >= end)
|
||||
return n + (end - i)
|
||||
n += nextTab - i
|
||||
n += tabSize - (n % tabSize)
|
||||
i = nextTab + 1
|
||||
}
|
||||
}
|
||||
|
||||
export class Delayed {
|
||||
constructor() {
|
||||
this.id = null
|
||||
this.f = null
|
||||
this.time = 0
|
||||
this.handler = bind(this.onTimeout, this)
|
||||
}
|
||||
onTimeout(self) {
|
||||
self.id = 0
|
||||
if (self.time <= +new Date) {
|
||||
self.f()
|
||||
} else {
|
||||
setTimeout(self.handler, self.time - +new Date)
|
||||
}
|
||||
}
|
||||
set(ms, f) {
|
||||
this.f = f
|
||||
const time = +new Date + ms
|
||||
if (!this.id || time < this.time) {
|
||||
clearTimeout(this.id)
|
||||
this.id = setTimeout(this.handler, ms)
|
||||
this.time = time
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export function indexOf(array, elt) {
|
||||
for (let i = 0; i < array.length; ++i)
|
||||
if (array[i] == elt) return i
|
||||
return -1
|
||||
}
|
||||
|
||||
// Number of pixels added to scroller and sizer to hide scrollbar
|
||||
export let scrollerGap = 50
|
||||
|
||||
// Returned or thrown by various protocols to signal 'I'm not
|
||||
// handling this'.
|
||||
export let Pass = {toString: function(){return "CodeMirror.Pass"}}
|
||||
|
||||
// Reused option objects for setSelection & friends
|
||||
export let sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}
|
||||
|
||||
// The inverse of countColumn -- find the offset that corresponds to
|
||||
// a particular column.
|
||||
export function findColumn(string, goal, tabSize) {
|
||||
for (let pos = 0, col = 0;;) {
|
||||
let nextTab = string.indexOf("\t", pos)
|
||||
if (nextTab == -1) nextTab = string.length
|
||||
let skipped = nextTab - pos
|
||||
if (nextTab == string.length || col + skipped >= goal)
|
||||
return pos + Math.min(skipped, goal - col)
|
||||
col += nextTab - pos
|
||||
col += tabSize - (col % tabSize)
|
||||
pos = nextTab + 1
|
||||
if (col >= goal) return pos
|
||||
}
|
||||
}
|
||||
|
||||
let spaceStrs = [""]
|
||||
export function spaceStr(n) {
|
||||
while (spaceStrs.length <= n)
|
||||
spaceStrs.push(lst(spaceStrs) + " ")
|
||||
return spaceStrs[n]
|
||||
}
|
||||
|
||||
export function lst(arr) { return arr[arr.length-1] }
|
||||
|
||||
export function map(array, f) {
|
||||
let out = []
|
||||
for (let i = 0; i < array.length; i++) out[i] = f(array[i], i)
|
||||
return out
|
||||
}
|
||||
|
||||
export function insertSorted(array, value, score) {
|
||||
let pos = 0, priority = score(value)
|
||||
while (pos < array.length && score(array[pos]) <= priority) pos++
|
||||
array.splice(pos, 0, value)
|
||||
}
|
||||
|
||||
function nothing() {}
|
||||
|
||||
export function createObj(base, props) {
|
||||
let inst
|
||||
if (Object.create) {
|
||||
inst = Object.create(base)
|
||||
} else {
|
||||
nothing.prototype = base
|
||||
inst = new nothing()
|
||||
}
|
||||
if (props) copyObj(props, inst)
|
||||
return inst
|
||||
}
|
||||
|
||||
let nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
|
||||
export function isWordCharBasic(ch) {
|
||||
return /\w/.test(ch) || ch > "\x80" &&
|
||||
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
|
||||
}
|
||||
export function isWordChar(ch, helper) {
|
||||
if (!helper) return isWordCharBasic(ch)
|
||||
if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true
|
||||
return helper.test(ch)
|
||||
}
|
||||
|
||||
export function isEmpty(obj) {
|
||||
for (let n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false
|
||||
return true
|
||||
}
|
||||
|
||||
// Extending unicode characters. A series of a non-extending char +
|
||||
// any number of extending chars is treated as a single unit as far
|
||||
// as editing and measuring is concerned. This is not fully correct,
|
||||
// since some scripts/fonts/browsers also treat other configurations
|
||||
// of code points as a group.
|
||||
let extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
|
||||
export function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
|
||||
|
||||
// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
|
||||
export function skipExtendingChars(str, pos, dir) {
|
||||
while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) pos += dir
|
||||
return pos
|
||||
}
|
||||
|
||||
// Returns the value from the range [`from`; `to`] that satisfies
|
||||
// `pred` and is closest to `from`. Assumes that at least `to`
|
||||
// satisfies `pred`. Supports `from` being greater than `to`.
|
||||
export function findFirst(pred, from, to) {
|
||||
// At any point we are certain `to` satisfies `pred`, don't know
|
||||
// whether `from` does.
|
||||
let dir = from > to ? -1 : 1
|
||||
for (;;) {
|
||||
if (from == to) return from
|
||||
let midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF)
|
||||
if (mid == from) return pred(mid) ? from : to
|
||||
if (pred(mid)) to = mid
|
||||
else from = mid + dir
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
import { getHandlers } from "./event.js"
|
||||
|
||||
let operationGroup = null
|
||||
|
||||
export function pushOperation(op) {
|
||||
if (operationGroup) {
|
||||
operationGroup.ops.push(op)
|
||||
} else {
|
||||
op.ownsGroup = operationGroup = {
|
||||
ops: [op],
|
||||
delayedCallbacks: []
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function fireCallbacksForOps(group) {
|
||||
// Calls delayed callbacks and cursorActivity handlers until no
|
||||
// new ones appear
|
||||
let callbacks = group.delayedCallbacks, i = 0
|
||||
do {
|
||||
for (; i < callbacks.length; i++)
|
||||
callbacks[i].call(null)
|
||||
for (let j = 0; j < group.ops.length; j++) {
|
||||
let op = group.ops[j]
|
||||
if (op.cursorActivityHandlers)
|
||||
while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
|
||||
op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm)
|
||||
}
|
||||
} while (i < callbacks.length)
|
||||
}
|
||||
|
||||
export function finishOperation(op, endCb) {
|
||||
let group = op.ownsGroup
|
||||
if (!group) return
|
||||
|
||||
try { fireCallbacksForOps(group) }
|
||||
finally {
|
||||
operationGroup = null
|
||||
endCb(group)
|
||||
}
|
||||
}
|
||||
|
||||
let orphanDelayedCallbacks = null
|
||||
|
||||
// Often, we want to signal events at a point where we are in the
|
||||
// middle of some work, but don't want the handler to start calling
|
||||
// other methods on the editor, which might be in an inconsistent
|
||||
// state or simply not expect any other events to happen.
|
||||
// signalLater looks whether there are any handlers, and schedules
|
||||
// them to be executed when the last operation ends, or, if no
|
||||
// operation is active, when a timeout fires.
|
||||
export function signalLater(emitter, type /*, values...*/) {
|
||||
let arr = getHandlers(emitter, type)
|
||||
if (!arr.length) return
|
||||
let args = Array.prototype.slice.call(arguments, 2), list
|
||||
if (operationGroup) {
|
||||
list = operationGroup.delayedCallbacks
|
||||
} else if (orphanDelayedCallbacks) {
|
||||
list = orphanDelayedCallbacks
|
||||
} else {
|
||||
list = orphanDelayedCallbacks = []
|
||||
setTimeout(fireOrphanDelayed, 0)
|
||||
}
|
||||
for (let i = 0; i < arr.length; ++i)
|
||||
list.push(() => arr[i].apply(null, args))
|
||||
}
|
||||
|
||||
function fireOrphanDelayed() {
|
||||
let delayed = orphanDelayedCallbacks
|
||||
orphanDelayedCallbacks = null
|
||||
for (let i = 0; i < delayed.length; ++i) delayed[i]()
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue