From 5b85fcafcb3ed093f91069328a4272e236dca4ec Mon Sep 17 00:00:00 2001 From: yanglbme Date: Tue, 3 Dec 2019 16:21:16 +0800 Subject: [PATCH] feat: add css-hint lib and to do list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * 添加自动补全代码库 * 添加 TODO List --- README.md | 1 + libs/css/show-hint.css | 36 +++ libs/scripts/css-hint.js | 66 ++++++ libs/scripts/show-hint.js | 460 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 563 insertions(+) create mode 100644 libs/css/show-hint.css create mode 100644 libs/scripts/css-hint.js create mode 100644 libs/scripts/show-hint.js diff --git a/README.md b/README.md index 67b4299..17e976a 100644 --- a/README.md +++ b/README.md @@ -25,6 +25,7 @@ - [x] 支持链接微信图文，外链自动转为文末索引 - [x] 支持一键复制并粘贴到公众号后台 - [x] 支持图片上传并将 URL 插入编辑器光标定位处 +- [ ] 实现自定义 CSS 并实时渲染（待开发） ![select-and-replace-color-theme](./assets/images/select-and-replace-color-theme.gif) diff --git a/libs/css/show-hint.css b/libs/css/show-hint.css new file mode 100644 index 0000000..5617ccc --- /dev/null +++ b/libs/css/show-hint.css @@ -0,0 +1,36 @@ +.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; + white-space: pre; + color: black; + cursor: pointer; +} + +li.CodeMirror-hint-active { + background: #08f; + color: white; +} diff --git a/libs/scripts/css-hint.js b/libs/scripts/css-hint.js new file mode 100644 index 0000000..980d119 --- /dev/null +++ b/libs/scripts/css-hint.js @@ -0,0 +1,66 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://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 = {"active":1, "after":1, "before":1, "checked":1, "default":1, + "disabled":1, "empty":1, "enabled":1, "first-child":1, "first-letter":1, + "first-line":1, "first-of-type":1, "focus":1, "hover":1, "in-range":1, + "indeterminate":1, "invalid":1, "lang":1, "last-child":1, "last-of-type":1, + "link":1, "not":1, "nth-child":1, "nth-last-child":1, "nth-last-of-type":1, + "nth-of-type":1, "only-of-type":1, "only-child":1, "optional":1, "out-of-range":1, + "placeholder":1, "read-only":1, "read-write":1, "required":1, "root":1, + "selection":1, "target":1, "valid":1, "visited":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; + + if (token.type == "keyword" && "!important".indexOf(token.string) == 0) + return {list: ["!important"], from: CodeMirror.Pos(cur.line, token.start), + to: CodeMirror.Pos(cur.line, token.end)}; + + 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/libs/scripts/show-hint.js b/libs/scripts/show-hint.js new file mode 100644 index 0000000..d70b2ab --- /dev/null +++ b/libs/scripts/show-hint.js @@ -0,0 +1,460 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://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); + }; + + 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; + + 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; + 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]; + 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(); + }, + + cursorActivity: function() { + if (this.debounce) { + cancelAnimationFrame(this.debounce); + this.debounce = 0; + } + + 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 < this.startPos.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 = hints.getBoundingClientRect(), overlapY = box.bottom - winH; + var scrolls = hints.scrollHeight > hints.clientHeight + 1 + var startScroll = cm.getScrollInfo(); + + 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); + }); + + 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; + 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; + 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; + } + }; + + 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()\[\]{};:>,]/, + closeOnUnfocus: true, + completeOnSingleClick: true, + container: null, + customKeys: null, + extraKeys: null + }; + + CodeMirror.defineOption("hintOptions", null); +});