1 /* 2 * CKEditor - The text editor for Internet - http://ckeditor.com 3 * Copyright (C) 2003-2008 Frederico Caldeira Knabben 4 * 5 * == BEGIN LICENSE == 6 * 7 * Licensed under the terms of any of the following licenses at your 8 * choice: 9 * 10 * - GNU General Public License Version 2 or later (the "GPL") 11 * http://www.gnu.org/licenses/gpl.html 12 * 13 * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") 14 * http://www.gnu.org/licenses/lgpl.html 15 * 16 * - Mozilla Public License Version 1.1 or later (the "MPL") 17 * http://www.mozilla.org/MPL/MPL-1.1.html 18 * 19 * == END LICENSE == 20 */ 21 22 /** 23 * @fileOverview Defines the {@link CKEDITOR.loader} objects, which is used to 24 * load core scripts and their dependencies from _source. 25 */ 26 27 if ( typeof CKEDITOR == 'undefined' ) 28 CKEDITOR = {}; 29 30 /** 31 * Load core scripts and their dependencies from _source. 32 * @namespace 33 * @example 34 */ 35 CKEDITOR.loader = (function() 36 { 37 // Table of script names and their dependencies. 38 var scripts = 39 { 40 'core/_bootstrap' : [ 'core/config', 'core/ckeditor', 'core/plugins', 'core/scriptLoader', 'core/tools', /* The following are entries that we wnat to force loading to at the end to avoid dependence recursion */ 'core/dom/text' ], 41 'core/ajax' : [ 'core/xml' ], 42 'core/ckeditor' : [ 'core/ajax', 'core/ckeditor_basic', 'core/dom', 'core/dom/document', 'core/dom/element', 'core/editor', 'core/event', 'core/tools' ], 43 'core/ckeditor_base' : [], 44 'core/ckeditor_basic' : [ 'core/env', 'core/event' ], 45 'core/config' : [ 'core/ckeditor_base' ], 46 'core/dom' : [], 47 'core/dom/document' : [ 'core/dom','core/dom/element' ], 48 'core/dom/element' : [ 'core/dom', 'core/dom/document', 'core/dom/node', 'core/tools' ], 49 'core/dom/node' : [], 50 'core/dom/text' : [ 'core/dom/node' ], 51 'core/editor' : [ 'core/config', 'core/event', 'core/plugins', 'core/skins', 'core/themes', 'core/tools' ], 52 'core/env' : [], 53 'core/event' : [], 54 'core/plugins' : [ 'core/resourceManager' ], 55 'core/resourceManager' : [ 'core/scriptLoader', 'core/tools' ], 56 'core/scriptLoader' : [ 'core/dom/element', 'core/env' ], 57 'core/skins' : [], 58 'core/themes' : [ 'core/resourceManager' ], 59 'core/tools' : [ 'core/env' ], 60 'core/xml' : [ 'core/env' ] 61 }; 62 63 var basePath = (function() 64 { 65 // This is a copy of CKEDITOR.basePath, but requires the script having 66 // "_source/core/loader.js". 67 if ( CKEDITOR && CKEDITOR.basePath ) 68 return CKEDITOR.basePath; 69 70 // Find out the editor directory path, based on its <script> tag. 71 var path = ''; 72 var scripts = document.getElementsByTagName( 'script' ); 73 74 for ( var i = 0 ; i < scripts.length ; i++ ) 75 { 76 var match = scripts[i].src.match( /(^|.*[\\\/])core\/loader.js(?:\?.*)?$/i ); 77 78 if ( match ) 79 { 80 path = match[1]; 81 break; 82 } 83 } 84 85 // In IE (only) the script.src string is the raw valued entered in the 86 // HTML. Other browsers return the full resolved URL instead. 87 if ( path.indexOf('://') == -1 ) 88 { 89 // Absolute path. 90 if ( path.indexOf( '/' ) === 0 ) 91 path = location.href.match( /^.*?:\/\/[^\/]*/ )[0] + path; 92 // Relative path. 93 else 94 path = location.href.match( /^[^\?]*\// )[0] + path; 95 } 96 97 return path; 98 })(); 99 100 /** @lends CKEDITOR.loader */ 101 return { 102 /** 103 * The list of loaded scripts in their loading order. 104 * @type Array 105 * @example 106 * // Alert the loaded script names. 107 * alert( <b>CKEDITOR.loader.loadedScripts</b> ); 108 */ 109 loadedScripts : [], 110 111 /** 112 * Loads a specific script, including its dependencies. This is not a 113 * synchronous loading, which means that the code the be loaded will 114 * not necessarily be available after this call. 115 * @type undefined 116 * @example 117 * CKEDITOR.loader.load( 'core/dom/element' ); 118 */ 119 load : function( scriptName ) 120 { 121 // Check if the script has already been loaded. 122 if ( scriptName in this.loadedScripts ) 123 return; 124 125 // Get the script dependencies list. 126 var dependencies = scripts[ scriptName ]; 127 if ( !dependencies ) 128 throw 'The script name"' + scriptName + '" is not defined.'; 129 130 // Mark the script as loaded, even before really loading it, to 131 // avoid cross references recursion. 132 this.loadedScripts[ scriptName ] = true; 133 134 // Load all dependencies first. 135 for ( var i = 0 ; i < dependencies.length ; i++ ) 136 this.load( dependencies[ i ] ); 137 138 // Append this script to the list of loaded scripts. 139 this.loadedScripts.push( scriptName ); 140 141 var scriptSrc = basePath + '_source/' + scriptName + '.js'; 142 143 // Append the <script> element to the DOM. 144 if ( document.body ) 145 { 146 var script = document.createElement( 'script' ); 147 script.type = 'text/javascript'; 148 script.src = scriptSrc; 149 150 document.body.appendChild( script ); 151 } 152 else 153 document.write( '<script src="' + scriptSrc + '" type="text/javascript"><\/script>' ); 154 } 155 }; 156 })(); 157 158 // Check if any script has been defined for autoload. 159 if ( CKEDITOR._autoLoad ) 160 { 161 CKEDITOR.loader.load( CKEDITOR._autoLoad ); 162 delete CKEDITOR._autoLoad; 163 } 164