394 lines
13 KiB
JavaScript
394 lines
13 KiB
JavaScript
/**
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* This code is mostly from the old Etherpad. Please help us to comment this code.
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* This helps other people to understand this code better and helps them to improve it.
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* TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
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*/
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/**
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* Copyright 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS-IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// requires: top
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// requires: plugins
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// requires: undefined
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Ace2Editor.registry = {
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nextId: 1
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};
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var plugins = require('/plugins').plugins;
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function Ace2Editor()
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{
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var ace2 = Ace2Editor;
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var editor = {};
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var info = {
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editor: editor,
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id: (ace2.registry.nextId++)
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};
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var loaded = false;
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var actionsPendingInit = [];
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function pendingInit(func, optDoNow)
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{
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return function()
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{
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var that = this;
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var args = arguments;
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function action()
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{
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func.apply(that, args);
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}
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if (optDoNow)
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{
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optDoNow.apply(that, args);
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}
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if (loaded)
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{
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action();
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}
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else
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{
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actionsPendingInit.push(action);
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}
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};
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}
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function doActionsPendingInit()
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{
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for (var i = 0; i < actionsPendingInit.length; i++)
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{
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actionsPendingInit[i]();
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}
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actionsPendingInit = [];
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}
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ace2.registry[info.id] = info;
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editor.importText = pendingInit(function(newCode, undoable)
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{
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info.ace_importText(newCode, undoable);
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});
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editor.importAText = pendingInit(function(newCode, apoolJsonObj, undoable)
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{
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info.ace_importAText(newCode, apoolJsonObj, undoable);
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});
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editor.exportText = function()
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{
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if (!loaded) return "(awaiting init)\n";
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return info.ace_exportText();
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};
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editor.getFrame = function()
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{
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return info.frame || null;
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};
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editor.focus = pendingInit(function()
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{
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info.ace_focus();
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});
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editor.setEditable = pendingInit(function(newVal)
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{
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info.ace_setEditable(newVal);
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});
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editor.getFormattedCode = function()
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{
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return info.ace_getFormattedCode();
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};
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editor.setOnKeyPress = pendingInit(function(handler)
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{
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info.ace_setOnKeyPress(handler);
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});
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editor.setOnKeyDown = pendingInit(function(handler)
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{
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info.ace_setOnKeyDown(handler);
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});
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editor.setNotifyDirty = pendingInit(function(handler)
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{
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info.ace_setNotifyDirty(handler);
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});
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editor.setProperty = pendingInit(function(key, value)
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{
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info.ace_setProperty(key, value);
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});
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editor.getDebugProperty = function(prop)
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{
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return info.ace_getDebugProperty(prop);
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};
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editor.setBaseText = pendingInit(function(txt)
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{
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info.ace_setBaseText(txt);
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});
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editor.setBaseAttributedText = pendingInit(function(atxt, apoolJsonObj)
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{
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info.ace_setBaseAttributedText(atxt, apoolJsonObj);
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});
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editor.applyChangesToBase = pendingInit(function(changes, optAuthor, apoolJsonObj)
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{
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info.ace_applyChangesToBase(changes, optAuthor, apoolJsonObj);
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});
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// prepareUserChangeset:
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// Returns null if no new changes or ACE not ready. Otherwise, bundles up all user changes
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// to the latest base text into a Changeset, which is returned (as a string if encodeAsString).
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// If this method returns a truthy value, then applyPreparedChangesetToBase can be called
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// at some later point to consider these changes part of the base, after which prepareUserChangeset
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// must be called again before applyPreparedChangesetToBase. Multiple consecutive calls
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// to prepareUserChangeset will return an updated changeset that takes into account the
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// latest user changes, and modify the changeset to be applied by applyPreparedChangesetToBase
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// accordingly.
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editor.prepareUserChangeset = function()
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{
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if (!loaded) return null;
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return info.ace_prepareUserChangeset();
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};
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editor.applyPreparedChangesetToBase = pendingInit(
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function()
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{
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info.ace_applyPreparedChangesetToBase();
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});
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editor.setUserChangeNotificationCallback = pendingInit(function(callback)
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{
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info.ace_setUserChangeNotificationCallback(callback);
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});
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editor.setAuthorInfo = pendingInit(function(author, authorInfo)
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{
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info.ace_setAuthorInfo(author, authorInfo);
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});
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editor.setAuthorSelectionRange = pendingInit(function(author, start, end)
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{
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info.ace_setAuthorSelectionRange(author, start, end);
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});
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editor.getUnhandledErrors = function()
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{
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if (!loaded) return [];
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// returns array of {error: <browser Error object>, time: +new Date()}
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return info.ace_getUnhandledErrors();
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};
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editor.callWithAce = pendingInit(function(fn, callStack, normalize)
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{
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return info.ace_callWithAce(fn, callStack, normalize);
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});
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editor.execCommand = pendingInit(function(cmd, arg1)
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{
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info.ace_execCommand(cmd, arg1);
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});
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editor.replaceRange = pendingInit(function(start, end, text)
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{
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info.ace_replaceRange(start, end, text);
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});
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function sortFilesByEmbeded(files) {
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var embededFiles = [];
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var remoteFiles = [];
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if (Ace2Editor.EMBEDED) {
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for (var i = 0, ii = files.length; i < ii; i++) {
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var file = files[i];
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if (Object.prototype.hasOwnProperty.call(Ace2Editor.EMBEDED, file)) {
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embededFiles.push(file);
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} else {
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remoteFiles.push(file);
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}
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}
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} else {
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remoteFiles = files;
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}
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return {embeded: embededFiles, remote: remoteFiles};
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}
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function pushRequireScriptTo(buffer) {
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/* Folling is for packaging regular expression. */
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/* $$INCLUDE_JS("../static/js/require-kernel.js"); */
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var KERNEL_SOURCE = '../static/js/require-kernel.js';
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if (Ace2Editor.EMBEDED && Ace2Editor.EMBEDED[KERNEL_SOURCE]) {
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buffer.push('<script type="text/javascript">');
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buffer.push(Ace2Editor.EMBEDED[KERNEL_SOURCE]);
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buffer.push('<\/script>');
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} else {
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buffer.push('<script type="application/javascript" src="'+KERNEL_SOURCE+'"><\/script>');
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}
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}
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function pushScriptTagsFor(buffer, files) {
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var sorted = sortFilesByEmbeded(files);
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var embededFiles = sorted.embeded;
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var remoteFiles = sorted.remote;
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for (var i = 0, ii = remoteFiles.length; i < ii; i++) {
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var file = remoteFiles[i];
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file = file.replace(/^\.\.\/static\/js\//, '../minified/');
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buffer.push('<script type="application/javascript" src="' + file + '"><\/script>');
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}
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buffer.push('<script type="text/javascript">');
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for (var i = 0, ii = embededFiles.length; i < ii; i++) {
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var file = embededFiles[i];
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buffer.push(Ace2Editor.EMBEDED[file].replace(/<\//g, '<\\/'));
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buffer.push(';\n');
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}
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for (var i = 0, ii = files.length; i < ii; i++) {
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var file = files[i];
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file = file.replace(/^\.\.\/static\/js\//, '');
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buffer.push('require('+ JSON.stringify('/' + file) + ');\n');
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}
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buffer.push('<\/script>');
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}
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function pushStyleTagsFor(buffer, files) {
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var sorted = sortFilesByEmbeded(files);
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var embededFiles = sorted.embeded;
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var remoteFiles = sorted.remote;
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if (embededFiles.length > 0) {
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buffer.push('<style type="text/css">');
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for (var i = 0, ii = embededFiles.length; i < ii; i++) {
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var file = embededFiles[i];
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buffer.push(Ace2Editor.EMBEDED[file].replace(/<\//g, '<\\/'));
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}
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buffer.push('<\/style>');
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}
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for (var i = 0, ii = remoteFiles.length; i < ii; i++) {
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var file = remoteFiles[i];
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buffer.push('<link rel="stylesheet" type="text/css" href="' + file + '"\/>');
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}
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}
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editor.destroy = pendingInit(function()
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{
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info.ace_dispose();
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info.frame.parentNode.removeChild(info.frame);
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delete ace2.registry[info.id];
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info = null; // prevent IE 6 closure memory leaks
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});
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editor.init = function(containerId, initialCode, doneFunc)
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{
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editor.importText(initialCode);
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info.onEditorReady = function()
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{
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loaded = true;
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doActionsPendingInit();
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doneFunc();
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};
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(function()
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{
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var doctype = "<!doctype html>";
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var iframeHTML = [];
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iframeHTML.push(doctype);
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iframeHTML.push("<html><head>");
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// For compatability's sake transform in and out.
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for (var i = 0, ii = iframeHTML.length; i < ii; i++) {
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iframeHTML[i] = JSON.stringify(iframeHTML[i]);
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}
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plugins.callHook("aceInitInnerdocbodyHead", {
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iframeHTML: iframeHTML
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});
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for (var i = 0, ii = iframeHTML.length; i < ii; i++) {
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iframeHTML[i] = JSON.parse(iframeHTML[i]);
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}
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// calls to these functions ($$INCLUDE_...) are replaced when this file is processed
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// and compressed, putting the compressed code from the named file directly into the
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// source here.
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// these lines must conform to a specific format because they are passed by the build script:
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var includedCSS = [];
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var $$INCLUDE_CSS = function(filename) {includedCSS.push(filename)};
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$$INCLUDE_CSS("../static/css/iframe_editor.css");
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$$INCLUDE_CSS("../static/css/pad.css");
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$$INCLUDE_CSS("../static/custom/pad.css");
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pushStyleTagsFor(iframeHTML, includedCSS);
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var includedJS = [];
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var $$INCLUDE_JS = function(filename) {includedJS.push(filename)};
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$$INCLUDE_JS("../static/js/ace2_common.js");
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$$INCLUDE_JS("../static/js/skiplist.js");
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$$INCLUDE_JS("../static/js/virtual_lines.js");
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$$INCLUDE_JS("../static/js/easysync2.js");
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$$INCLUDE_JS("../static/js/cssmanager.js");
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$$INCLUDE_JS("../static/js/colorutils.js");
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$$INCLUDE_JS("../static/js/undomodule.js");
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$$INCLUDE_JS("../static/js/contentcollector.js");
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$$INCLUDE_JS("../static/js/changesettracker.js");
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$$INCLUDE_JS("../static/js/linestylefilter.js");
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$$INCLUDE_JS("../static/js/domline.js");
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$$INCLUDE_JS("../static/js/ace2_inner.js");
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pushRequireScriptTo(iframeHTML);
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pushScriptTagsFor(iframeHTML, includedJS);
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iframeHTML.push('<style type="text/css" title="dynamicsyntax"></style>');
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iframeHTML.push('</head><body id="innerdocbody" class="syntax" spellcheck="false"> </body></html>');
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// Expose myself to global for my child frame.
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var thisFunctionsName = "ChildAccessibleAce2Editor";
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(function () {return this}())[thisFunctionsName] = Ace2Editor;
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var outerScript = 'editorId = "' + info.id + '"; editorInfo = parent.' + thisFunctionsName + '.registry[editorId]; ' + 'window.onload = function() ' + '{ window.onload = null; setTimeout' + '(function() ' + '{ var iframe = document.createElement("IFRAME"); ' + 'iframe.scrolling = "no"; var outerdocbody = document.getElementById("outerdocbody"); ' + 'iframe.frameBorder = 0; iframe.allowTransparency = true; ' + // for IE
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'outerdocbody.insertBefore(iframe, outerdocbody.firstChild); ' + 'iframe.ace_outerWin = window; ' + 'readyFunc = function() { editorInfo.onEditorReady(); readyFunc = null; editorInfo = null; }; ' + 'var doc = iframe.contentWindow.document; doc.open(); var text = (' + JSON.stringify(iframeHTML.join('\n')) + ');doc.write(text); doc.close(); ' + '}, 0); }';
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var outerHTML = [doctype, '<html><head>']
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var includedCSS = [];
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var $$INCLUDE_CSS = function(filename) {includedCSS.push(filename)};
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$$INCLUDE_CSS("../static/css/iframe_editor.css");
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$$INCLUDE_CSS("../static/css/pad.css");
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$$INCLUDE_CSS("../static/custom/pad.css");
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pushStyleTagsFor(outerHTML, includedCSS);
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// bizarrely, in FF2, a file with no "external" dependencies won't finish loading properly
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// (throbs busy while typing)
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outerHTML.push('<link rel="stylesheet" type="text/css" href="data:text/css,"/>', '\x3cscript>\n', outerScript.replace(/<\//g, '<\\/'), '\n\x3c/script>', '</head><body id="outerdocbody"><div id="sidediv"><!-- --></div><div id="linemetricsdiv">x</div><div id="overlaysdiv"><!-- --></div></body></html>');
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if (!Array.prototype.map) Array.prototype.map = function(fun)
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{ //needed for IE
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if (typeof fun != "function") throw new TypeError();
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var len = this.length;
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var res = new Array(len);
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var thisp = arguments[1];
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for (var i = 0; i < len; i++)
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{
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if (i in this) res[i] = fun.call(thisp, this[i], i, this);
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}
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return res;
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};
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var outerFrame = document.createElement("IFRAME");
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outerFrame.frameBorder = 0; // for IE
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info.frame = outerFrame;
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document.getElementById(containerId).appendChild(outerFrame);
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var editorDocument = outerFrame.contentWindow.document;
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editorDocument.open();
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editorDocument.write(outerHTML.join(''));
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editorDocument.close();
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})();
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};
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return editor;
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}
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exports.Ace2Editor = Ace2Editor;
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