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// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: https://codemirror.net/LICENSE // declare global: DOMRect (function(mod) { if (typeof exports == "object" && typeof module == "object") // CommonJS mod(require("../../lib/codemirror")); else if (typeof define == "function" && define.amd) // AMD define(["../../lib/codemirror"], mod); else // Plain browser env mod(CodeMirror); })(function(CodeMirror) { "use strict"; var HINT_ELEMENT_CLASS = "CodeMirror-hint"; var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active"; // This is the old interface, kept around for now to stay // backwards-compatible. CodeMirror.showHint = function(cm, getHints, options) { if (!getHints) return cm.showHint(options); if (options && options.async) getHints.async = true; var newOpts = {hint: getHints}; if (options) for (var prop in options) newOpts[prop] = options[prop]; return cm.showHint(newOpts); }; CodeMirror.defineExtension("showHint", function(options) { options = parseOptions(this, this.getCursor("start"), options); var selections = this.listSelections() if (selections.length > 1) return; // By default, don't allow completion when something is selected. // A hint function can have a `supportsSelection` property to // indicate that it can handle selections. if (this.somethingSelected()) { if (!options.hint.supportsSelection) return; // Don't try with cross-line selections for (var i = 0; i < selections.length; i++) if (selections[i].head.line != selections[i].anchor.line) return; } if (this.state.completionActive) this.state.completionActive.close(); var completion = this.state.completionActive = new Completion(this, options); if (!completion.options.hint) return; CodeMirror.signal(this, "startCompletion", this); completion.update(true); }); CodeMirror.defineExtension("closeHint", function() { if (this.state.completionActive) this.state.completionActive.close() }) function Completion(cm, options) { this.cm = cm; this.options = options; this.widget = null; this.debounce = 0; this.tick = 0; this.startPos = this.cm.getCursor("start"); this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length; if (this.options.updateOnCursorActivity) { var self = this; cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); }); } } var requestAnimationFrame = window.requestAnimationFrame || function(fn) { return setTimeout(fn, 1000/60); }; var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout; Completion.prototype = { close: function() { if (!this.active()) return; this.cm.state.completionActive = null; this.tick = null; if (this.options.updateOnCursorActivity) { this.cm.off("cursorActivity", this.activityFunc); } if (this.widget && this.data) CodeMirror.signal(this.data, "close"); if (this.widget) this.widget.close(); CodeMirror.signal(this.cm, "endCompletion", this.cm); }, active: function() { return this.cm.state.completionActive == this; }, pick: function(data, i) { var completion = data.list[i], self = this; this.cm.operation(function() { if (completion.hint) completion.hint(self.cm, data, completion); else self.cm.replaceRange(getText(completion), completion.from || data.from, completion.to || data.to, "complete"); CodeMirror.signal(data, "pick", completion); self.cm.scrollIntoView(); }); if (this.options.closeOnPick) { this.close(); } }, cursorActivity: function() { if (this.debounce) { cancelAnimationFrame(this.debounce); this.debounce = 0; } var identStart = this.startPos; if(this.data) { identStart = this.data.from; } var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line); if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch || pos.ch < identStart.ch || this.cm.somethingSelected() || (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) { this.close(); } else { var self = this; this.debounce = requestAnimationFrame(function() {self.update();}); if (this.widget) this.widget.disable(); } }, update: function(first) { if (this.tick == null) return var self = this, myTick = ++this.tick fetchHints(this.options.hint, this.cm, this.options, function(data) { if (self.tick == myTick) self.finishUpdate(data, first) }) }, finishUpdate: function(data, first) { if (this.data) CodeMirror.signal(this.data, "update"); var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle); if (this.widget) this.widget.close(); this.data = data; if (data && data.list.length) { if (picked && data.list.length == 1) { this.pick(data, 0); } else { this.widget = new Widget(this, data); CodeMirror.signal(data, "shown"); } } } }; function parseOptions(cm, pos, options) { var editor = cm.options.hintOptions; var out = {}; for (var prop in defaultOptions) out[prop] = defaultOptions[prop]; if (editor) for (var prop in editor) if (editor[prop] !== undefined) out[prop] = editor[prop]; if (options) for (var prop in options) if (options[prop] !== undefined) out[prop] = options[prop]; if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos) return out; } function getText(completion) { if (typeof completion == "string") return completion; else return completion.text; } function buildKeyMap(completion, handle) { var baseMap = { Up: function() {handle.moveFocus(-1);}, Down: function() {handle.moveFocus(1);}, PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);}, PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);}, Home: function() {handle.setFocus(0);}, End: function() {handle.setFocus(handle.length - 1);}, Enter: handle.pick, Tab: handle.pick, Esc: handle.close }; var mac = /Mac/.test(navigator.platform); if (mac) { baseMap["Ctrl-P"] = function() {handle.moveFocus(-1);}; baseMap["Ctrl-N"] = function() {handle.moveFocus(1);}; } var custom = completion.options.customKeys; var ourMap = custom ? {} : baseMap; function addBinding(key, val) { var bound; if (typeof val != "string") bound = function(cm) { return val(cm, handle); }; // This mechanism is deprecated else if (baseMap.hasOwnProperty(val)) bound = baseMap[val]; else bound = val; ourMap[key] = bound; } if (custom) for (var key in custom) if (custom.hasOwnProperty(key)) addBinding(key, custom[key]); var extra = completion.options.extraKeys; if (extra) for (var key in extra) if (extra.hasOwnProperty(key)) addBinding(key, extra[key]); return ourMap; } function getHintElement(hintsElement, el) { while (el && el != hintsElement) { if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el; el = el.parentNode; } } function Widget(completion, data) { this.completion = completion; this.data = data; this.picked = false; var widget = this, cm = completion.cm; var ownerDocument = cm.getInputField().ownerDocument; var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow; var hints = this.hints = ownerDocument.createElement("ul"); var theme = completion.cm.options.theme; hints.className = "CodeMirror-hints " + theme; this.selectedHint = data.selectedHint || 0; var completions = data.list; for (var i = 0; i < completions.length; ++i) { var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i]; var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS); if (cur.className != null) className = cur.className + " " + className; elt.className = className; if (cur.render) cur.render(elt, data, cur); else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur))); elt.hintId = i; } var container = completion.options.container || ownerDocument.body; var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null); var left = pos.left, top = pos.bottom, below = true; var offsetLeft = 0, offsetTop = 0; if (container !== ownerDocument.body) { // We offset the cursor position because left and top are relative to the offsetParent's top left corner. var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1; var offsetParent = isContainerPositioned ? container : container.offsetParent; var offsetParentPosition = offsetParent.getBoundingClientRect(); var bodyPosition = ownerDocument.body.getBoundingClientRect(); offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft); offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop); } hints.style.left = (left - offsetLeft) + "px"; hints.style.top = (top - offsetTop) + "px"; // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor. var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth); var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight); container.appendChild(hints); var box = completion.options.moveOnOverlap ? hints.getBoundingClientRect() : new DOMRect(); var scrolls = completion.options.paddingForScrollbar ? hints.scrollHeight > hints.clientHeight + 1 : false; // Compute in the timeout to avoid reflow on init var startScroll; setTimeout(function() { startScroll = cm.getScrollInfo(); }); var overlapY = box.bottom - winH; if (overlapY > 0) { var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top); if (curTop - height > 0) { // Fits above cursor hints.style.top = (top = pos.top - height - offsetTop) + "px"; below = false; } else if (height > winH) { hints.style.height = (winH - 5) + "px"; hints.style.top = (top = pos.bottom - box.top - offsetTop) + "px"; var cursor = cm.getCursor(); if (data.from.ch != cursor.ch) { pos = cm.cursorCoords(cursor); hints.style.left = (left = pos.left - offsetLeft) + "px"; box = hints.getBoundingClientRect(); } } } var overlapX = box.right - winW; if (overlapX > 0) { if (box.right - box.left > winW) { hints.style.width = (winW - 5) + "px"; overlapX -= (box.right - box.left) - winW; } hints.style.left = (left = pos.left - overlapX - offsetLeft) + "px"; } if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling) node.style.paddingRight = cm.display.nativeBarWidth + "px" cm.addKeyMap(this.keyMap = buildKeyMap(completion, { moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); }, setFocus: function(n) { widget.changeActive(n); }, menuSize: function() { return widget.screenAmount(); }, length: completions.length, close: function() { completion.close(); }, pick: function() { widget.pick(); }, data: data })); if (completion.options.closeOnUnfocus) { var closingOnBlur; cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); }); cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); }); } cm.on("scroll", this.onScroll = function() { var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect(); var newTop = top + startScroll.top - curScroll.top; var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop); if (!below) point += hints.offsetHeight; if (point <= editor.top || point >= editor.bottom) return completion.close(); hints.style.top = newTop + "px"; hints.style.left = (left + startScroll.left - curScroll.left) + "px"; }); CodeMirror.on(hints, "dblclick", function(e) { var t = getHintElement(hints, e.target || e.srcElement); if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();} }); CodeMirror.on(hints, "click", function(e) { var t = getHintElement(hints, e.target || e.srcElement); if (t && t.hintId != null) { widget.changeActive(t.hintId); if (completion.options.completeOnSingleClick) widget.pick(); } }); CodeMirror.on(hints, "mousedown", function() { setTimeout(function(){cm.focus();}, 20); }); // The first hint doesn't need to be scrolled to on init var selectedHintRange = this.getSelectedHintRange(); if (selectedHintRange.from !== 0 || selectedHintRange.to !== 0) { this.scrollToActive(); } CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]); return true; } Widget.prototype = { close: function() { if (this.completion.widget != this) return; this.completion.widget = null; if (this.hints.parentNode) this.hints.parentNode.removeChild(this.hints); this.completion.cm.removeKeyMap(this.keyMap); var cm = this.completion.cm; if (this.completion.options.closeOnUnfocus) { cm.off("blur", this.onBlur); cm.off("focus", this.onFocus); } cm.off("scroll", this.onScroll); }, disable: function() { this.completion.cm.removeKeyMap(this.keyMap); var widget = this; this.keyMap = {Enter: function() { widget.picked = true; }}; this.completion.cm.addKeyMap(this.keyMap); }, pick: function() { this.completion.pick(this.data, this.selectedHint); }, changeActive: function(i, avoidWrap) { if (i >= this.data.list.length) i = avoidWrap ? this.data.list.length - 1 : 0; else if (i < 0) i = avoidWrap ? 0 : this.data.list.length - 1; if (this.selectedHint == i) return; var node = this.hints.childNodes[this.selectedHint]; if (node) node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, ""); node = this.hints.childNodes[this.selectedHint = i]; node.className += " " + ACTIVE_HINT_ELEMENT_CLASS; this.scrollToActive() CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node); }, scrollToActive: function() { var selectedHintRange = this.getSelectedHintRange(); var node1 = this.hints.childNodes[selectedHintRange.from]; var node2 = this.hints.childNodes[selectedHintRange.to]; var firstNode = this.hints.firstChild; if (node1.offsetTop < this.hints.scrollTop) this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop; else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop; }, screenAmount: function() { return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1; }, getSelectedHintRange: function() { var margin = this.completion.options.scrollMargin || 0; return { from: Math.max(0, this.selectedHint - margin), to: Math.min(this.data.list.length - 1, this.selectedHint + margin), }; } }; function applicableHelpers(cm, helpers) { if (!cm.somethingSelected()) return helpers var result = [] for (var i = 0; i < helpers.length; i++) if (helpers[i].supportsSelection) result.push(helpers[i]) return result } function fetchHints(hint, cm, options, callback) { if (hint.async) { hint(cm, callback, options) } else { var result = hint(cm, options) if (result && result.then) result.then(callback) else callback(result) } } function resolveAutoHints(cm, pos) { var helpers = cm.getHelpers(pos, "hint"), words if (helpers.length) { var resolved = function(cm, callback, options) { var app = applicableHelpers(cm, helpers); function run(i) { if (i == app.length) return callback(null) fetchHints(app[i], cm, options, function(result) { if (result && result.list.length > 0) callback(result) else run(i + 1) }) } run(0) } resolved.async = true resolved.supportsSelection = true return resolved } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) { return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) } } else if (CodeMirror.hint.anyword) { return function(cm, options) { return CodeMirror.hint.anyword(cm, options) } } else { return function() {} } } CodeMirror.registerHelper("hint", "auto", { resolve: resolveAutoHints }); CodeMirror.registerHelper("hint", "fromList", function(cm, options) { var cur = cm.getCursor(), token = cm.getTokenAt(cur) var term, from = CodeMirror.Pos(cur.line, token.start), to = cur if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) { term = token.string.substr(0, cur.ch - token.start) } else { term = "" from = cur } var found = []; for (var i = 0; i < options.words.length; i++) { var word = options.words[i]; if (word.slice(0, term.length) == term) found.push(word); } if (found.length) return {list: found, from: from, to: to}; }); CodeMirror.commands.autocomplete = CodeMirror.showHint; var defaultOptions = { hint: CodeMirror.hint.auto, completeSingle: true, alignWithWord: true, closeCharacters: /[\s()\[\]{};:>,]/, closeOnPick: true, closeOnUnfocus: true, updateOnCursorActivity: true, completeOnSingleClick: true, container: null, customKeys: null, extraKeys: null, paddingForScrollbar: true, moveOnOverlap: true, }; CodeMirror.defineOption("hintOptions", null); });
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