/var/www/coffee-cms.ru/html: .cms/lib/codemirror/src/edit/CodeMirror.js comparison

comparison .cms/lib/codemirror/src/edit/CodeMirror.js @ 0:78edf6b517a0 draft

24.10

author	Coffee CMS <info@coffee-cms.ru>
date	Fri, 11 Oct 2024 22:40:23 +0000
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--1:000000000000
+:78edf6b517a0
+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 { 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(() => {
+if (this.hasFocus() && !this.state.focused) 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)