From 5a0e465f2a9047967923ff68ab8cd38fc8978c1b Mon Sep 17 00:00:00 2001 From: 9adefaf01e5bf6426d838cd20eae582d2b6ba647 Date: Tue, 3 Mar 2015 02:59:36 +0300 Subject: [PATCH] Edit style: autocomplete on Ctrl-Space using CodeMirror hint addon --- codemirror/addon/hint/css-hint.js | 56 ++++ codemirror/addon/hint/show-hint.css | 38 +++ codemirror/addon/hint/show-hint.js | 394 ++++++++++++++++++++++++++++ edit.html | 4 + edit.js | 3 +- 5 files changed, 494 insertions(+), 1 deletion(-) create mode 100644 codemirror/addon/hint/css-hint.js create mode 100644 codemirror/addon/hint/show-hint.css create mode 100644 codemirror/addon/hint/show-hint.js diff --git a/codemirror/addon/hint/css-hint.js b/codemirror/addon/hint/css-hint.js new file mode 100644 index 00000000..488da344 --- /dev/null +++ b/codemirror/addon/hint/css-hint.js @@ -0,0 +1,56 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror"), require("../../mode/css/css")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror", "../../mode/css/css"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var pseudoClasses = {link: 1, visited: 1, active: 1, hover: 1, focus: 1, + "first-letter": 1, "first-line": 1, "first-child": 1, + before: 1, after: 1, lang: 1}; + + CodeMirror.registerHelper("hint", "css", function(cm) { + var cur = cm.getCursor(), token = cm.getTokenAt(cur); + var inner = CodeMirror.innerMode(cm.getMode(), token.state); + if (inner.mode.name != "css") return; + + var start = token.start, end = cur.ch, word = token.string.slice(0, end - start); + if (/[^\w$_-]/.test(word)) { + word = ""; start = end = cur.ch; + } + + var spec = CodeMirror.resolveMode("text/css"); + + var result = []; + function add(keywords) { + for (var name in keywords) + if (!word || name.lastIndexOf(word, 0) == 0) + result.push(name); + } + + var st = inner.state.state; + if (st == "pseudo" || token.type == "variable-3") { + add(pseudoClasses); + } else if (st == "block" || st == "maybeprop") { + add(spec.propertyKeywords); + } else if (st == "prop" || st == "parens" || st == "at" || st == "params") { + add(spec.valueKeywords); + add(spec.colorKeywords); + } else if (st == "media" || st == "media_parens") { + add(spec.mediaTypes); + add(spec.mediaFeatures); + } + + if (result.length) return { + list: result, + from: CodeMirror.Pos(cur.line, start), + to: CodeMirror.Pos(cur.line, end) + }; + }); +}); diff --git a/codemirror/addon/hint/show-hint.css b/codemirror/addon/hint/show-hint.css new file mode 100644 index 00000000..924e638f --- /dev/null +++ b/codemirror/addon/hint/show-hint.css @@ -0,0 +1,38 @@ +.CodeMirror-hints { + position: absolute; + z-index: 10; + overflow: hidden; + list-style: none; + + margin: 0; + padding: 2px; + + -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2); + -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2); + box-shadow: 2px 3px 5px rgba(0,0,0,.2); + border-radius: 3px; + border: 1px solid silver; + + background: white; + font-size: 90%; + font-family: monospace; + + max-height: 20em; + overflow-y: auto; +} + +.CodeMirror-hint { + margin: 0; + padding: 0 4px; + border-radius: 2px; + max-width: 19em; + overflow: hidden; + white-space: pre; + color: black; + cursor: pointer; +} + +li.CodeMirror-hint-active { + background: #08f; + color: white; +} diff --git a/codemirror/addon/hint/show-hint.js b/codemirror/addon/hint/show-hint.js new file mode 100644 index 00000000..f5446194 --- /dev/null +++ b/codemirror/addon/hint/show-hint.js @@ -0,0 +1,394 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(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); + }; + + var asyncRunID = 0; + function retrieveHints(getter, cm, options, then) { + if (getter.async) { + var id = ++asyncRunID; + getter(cm, function(hints) { + if (asyncRunID == id) then(hints); + }, options); + } else { + then(getter(cm, options)); + } + } + + CodeMirror.defineExtension("showHint", function(options) { + // We want a single cursor position. + if (this.listSelections().length > 1 || this.somethingSelected()) return; + + if (this.state.completionActive) this.state.completionActive.close(); + var completion = this.state.completionActive = new Completion(this, options); + var getHints = completion.options.hint; + if (!getHints) return; + + CodeMirror.signal(this, "startCompletion", this); + return retrieveHints(getHints, this, completion.options, function(hints) { completion.showHints(hints); }); + }); + + function Completion(cm, options) { + this.cm = cm; + this.options = this.buildOptions(options); + this.widget = this.onClose = null; + } + + Completion.prototype = { + close: function() { + if (!this.active()) return; + this.cm.state.completionActive = null; + + if (this.widget) this.widget.close(); + if (this.onClose) this.onClose(); + CodeMirror.signal(this.cm, "endCompletion", this.cm); + }, + + active: function() { + return this.cm.state.completionActive == this; + }, + + pick: function(data, i) { + var completion = data.list[i]; + if (completion.hint) completion.hint(this.cm, data, completion); + else this.cm.replaceRange(getText(completion), completion.from || data.from, + completion.to || data.to, "complete"); + CodeMirror.signal(data, "pick", completion); + this.close(); + }, + + showHints: function(data) { + if (!data || !data.list.length || !this.active()) return this.close(); + + if (this.options.completeSingle && data.list.length == 1) + this.pick(data, 0); + else + this.showWidget(data); + }, + + showWidget: function(data) { + this.widget = new Widget(this, data); + CodeMirror.signal(data, "shown"); + + var debounce = 0, completion = this, finished; + var closeOn = this.options.closeCharacters; + var startPos = this.cm.getCursor(), startLen = this.cm.getLine(startPos.line).length; + + var requestAnimationFrame = window.requestAnimationFrame || function(fn) { + return setTimeout(fn, 1000/60); + }; + var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout; + + function done() { + if (finished) return; + finished = true; + completion.close(); + completion.cm.off("cursorActivity", activity); + if (data) CodeMirror.signal(data, "close"); + } + + function update() { + if (finished) return; + CodeMirror.signal(data, "update"); + retrieveHints(completion.options.hint, completion.cm, completion.options, finishUpdate); + } + function finishUpdate(data_) { + data = data_; + if (finished) return; + if (!data || !data.list.length) return done(); + if (completion.widget) completion.widget.close(); + completion.widget = new Widget(completion, data); + } + + function clearDebounce() { + if (debounce) { + cancelAnimationFrame(debounce); + debounce = 0; + } + } + + function activity() { + clearDebounce(); + var pos = completion.cm.getCursor(), line = completion.cm.getLine(pos.line); + if (pos.line != startPos.line || line.length - pos.ch != startLen - startPos.ch || + pos.ch < startPos.ch || completion.cm.somethingSelected() || + (pos.ch && closeOn.test(line.charAt(pos.ch - 1)))) { + completion.close(); + } else { + debounce = requestAnimationFrame(update); + if (completion.widget) completion.widget.close(); + } + } + this.cm.on("cursorActivity", activity); + this.onClose = done; + }, + + buildOptions: function(options) { + var editor = this.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]; + 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 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; + var widget = this, cm = completion.cm; + + var hints = this.hints = document.createElement("ul"); + hints.className = "CodeMirror-hints"; + this.selectedHint = data.selectedHint || 0; + + var completions = data.list; + for (var i = 0; i < completions.length; ++i) { + var elt = hints.appendChild(document.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(document.createTextNode(cur.displayText || getText(cur))); + elt.hintId = i; + } + + var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null); + var left = pos.left, top = pos.bottom, below = true; + hints.style.left = left + "px"; + hints.style.top = top + "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 = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth); + var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight); + (completion.options.container || document.body).appendChild(hints); + var box = hints.getBoundingClientRect(), 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) + "px"; + below = false; + } else if (height > winH) { + hints.style.height = (winH - 5) + "px"; + hints.style.top = (top = pos.bottom - box.top) + "px"; + var cursor = cm.getCursor(); + if (data.from.ch != cursor.ch) { + pos = cm.cursorCoords(cursor); + hints.style.left = (left = pos.left) + "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) + "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); }); + } + + var startScroll = cm.getScrollInfo(); + cm.on("scroll", this.onScroll = function() { + var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect(); + var newTop = top + startScroll.top - curScroll.top; + var point = newTop - (window.pageYOffset || (document.documentElement || document.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); + }); + + CodeMirror.signal(data, "select", completions[0], hints.firstChild); + return true; + } + + Widget.prototype = { + close: function() { + if (this.completion.widget != this) return; + this.completion.widget = null; + 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); + }, + + 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]; + node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, ""); + node = this.hints.childNodes[this.selectedHint = i]; + node.className += " " + ACTIVE_HINT_ELEMENT_CLASS; + if (node.offsetTop < this.hints.scrollTop) + this.hints.scrollTop = node.offsetTop - 3; + else if (node.offsetTop + node.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) + this.hints.scrollTop = node.offsetTop + node.offsetHeight - this.hints.clientHeight + 3; + CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node); + }, + + screenAmount: function() { + return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1; + } + }; + + CodeMirror.registerHelper("hint", "auto", function(cm, options) { + var helpers = cm.getHelpers(cm.getCursor(), "hint"), words; + if (helpers.length) { + for (var i = 0; i < helpers.length; i++) { + var cur = helpers[i](cm, options); + if (cur && cur.list.length) return cur; + } + } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) { + if (words) return CodeMirror.hint.fromList(cm, {words: words}); + } else if (CodeMirror.hint.anyword) { + return CodeMirror.hint.anyword(cm, options); + } + }); + + CodeMirror.registerHelper("hint", "fromList", function(cm, options) { + var cur = cm.getCursor(), token = cm.getTokenAt(cur); + var found = []; + for (var i = 0; i < options.words.length; i++) { + var word = options.words[i]; + if (word.slice(0, token.string.length) == token.string) + found.push(word); + } + + if (found.length) return { + list: found, + from: CodeMirror.Pos(cur.line, token.start), + to: CodeMirror.Pos(cur.line, token.end) + }; + }); + + CodeMirror.commands.autocomplete = CodeMirror.showHint; + + var defaultOptions = { + hint: CodeMirror.hint.auto, + completeSingle: true, + alignWithWord: true, + closeCharacters: /[\s()\[\]{};:>,]/, + closeOnUnfocus: true, + completeOnSingleClick: false, + container: null, + customKeys: null, + extraKeys: null + }; + + CodeMirror.defineOption("hintOptions", null); +}); diff --git a/edit.html b/edit.html index b8007160..1a37070b 100644 --- a/edit.html +++ b/edit.html @@ -25,6 +25,10 @@ + + + +