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

comparison .cms/lib/codemirror/src/edit/key_events.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 { 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, root } 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(root(cm))
+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)
+}