/**
* @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or http://ckeditor.com/license
*/
/**
* @fileOverview Defines the {@link CKEDITOR.loader} objects, which is used to
* load core scripts and their dependencies from _source.
*/
if ( typeof CKEDITOR == 'undefined' )
CKEDITOR = {}; // jshint ignore:line
if ( !CKEDITOR.loader ) {
/**
* Load core scripts and their dependencies from _source.
*
* @class
* @singleton
*/
CKEDITOR.loader = ( function() {
// Table of script names and their dependencies.
var scripts = {
'_bootstrap': [
'config', 'creators/inline', 'creators/themedui', 'editable', 'ckeditor', 'plugins',
'scriptloader', 'style', 'tools',
// The following are entries that we want to force loading at the end to avoid dependence recursion.
'dom/comment', 'dom/elementpath', 'dom/text', 'dom/rangelist', 'skin'
],
'ckeditor': [
'ckeditor_basic', 'log', 'dom', 'dtd', 'dom/document', 'dom/element', 'dom/iterator', 'editor', 'event',
'htmldataprocessor', 'htmlparser', 'htmlparser/element', 'htmlparser/fragment', 'htmlparser/filter',
'htmlparser/basicwriter', 'template', 'tools'
],
'ckeditor_base': [],
'ckeditor_basic': [ 'editor_basic', 'env', 'event' ],
'command': [],
'config': [ 'ckeditor_base' ],
'dom': [],
'dom/comment': [ 'dom/node' ],
'dom/document': [ 'dom/node', 'dom/window' ],
'dom/documentfragment': [ 'dom/element' ],
'dom/element': [ 'dom', 'dom/document', 'dom/domobject', 'dom/node', 'dom/nodelist', 'tools' ],
'dom/elementpath': [ 'dom/element' ],
'dom/event': [],
'dom/iterator': [ 'dom/range' ],
'dom/node': [ 'dom/domobject', 'tools' ],
'dom/nodelist': [ 'dom/node' ],
'dom/domobject': [ 'dom/event' ],
'dom/range': [ 'dom/document', 'dom/documentfragment', 'dom/element', 'dom/walker' ],
'dom/rangelist': [ 'dom/range' ],
'dom/text': [ 'dom/node', 'dom/domobject' ],
'dom/walker': [ 'dom/node' ],
'dom/window': [ 'dom/domobject' ],
'dtd': [ 'tools' ],
'editable': [ 'editor', 'tools' ],
'editor': [
'command', 'config', 'editor_basic', 'filter', 'focusmanager', 'keystrokehandler', 'lang',
'plugins', 'tools', 'ui'
],
'editor_basic': [ 'event' ],
'env': [],
'event': [],
'filter': [ 'dtd', 'tools' ],
'focusmanager': [],
'htmldataprocessor': [ 'htmlparser', 'htmlparser/basicwriter', 'htmlparser/fragment', 'htmlparser/filter' ],
'htmlparser': [],
'htmlparser/comment': [ 'htmlparser', 'htmlparser/node' ],
'htmlparser/element': [ 'htmlparser', 'htmlparser/fragment', 'htmlparser/node' ],
'htmlparser/fragment': [ 'htmlparser', 'htmlparser/comment', 'htmlparser/text', 'htmlparser/cdata' ],
'htmlparser/text': [ 'htmlparser', 'htmlparser/node' ],
'htmlparser/cdata': [ 'htmlparser', 'htmlparser/node' ],
'htmlparser/filter': [ 'htmlparser' ],
'htmlparser/basicwriter': [ 'htmlparser' ],
'htmlparser/node': [ 'htmlparser' ],
'keystrokehandler': [ 'event' ],
'lang': [],
'log': [ 'ckeditor_basic' ],
'plugins': [ 'resourcemanager' ],
'resourcemanager': [ 'scriptloader', 'tools' ],
'scriptloader': [ 'dom/element', 'env' ],
'selection': [ 'dom/range', 'dom/walker' ],
'skin': [],
'style': [ 'selection' ],
'template': [],
'tools': [ 'env' ],
'ui': [],
'creators/themedui': [],
'creators/inline': []
};
// The production implementation contains a fixed timestamp generated by the releaser.
var timestamp = '%TIMESTAMP%';
// The development implementation contains a current timestamp. // %REMOVE_LINE%
timestamp = ( CKEDITOR && CKEDITOR.timestamp ) || ( new Date() ).valueOf(); // %REMOVE_LINE%
var getUrl = function( resource ) {
if ( CKEDITOR && CKEDITOR.getUrl )
return CKEDITOR.getUrl( resource );
return CKEDITOR.basePath + resource + ( resource.indexOf( '?' ) >= 0 ? '&' : '?' ) + 't=' + timestamp;
};
var pendingLoad = [];
return {
/**
* The list of loaded scripts in their loading order.
*
* // Alert the loaded script names.
* alert( CKEDITOR.loader.loadedScripts );
*/
loadedScripts: [],
/**
* Table of script names and their dependencies.
*
* @property {Array}
*/
scripts: scripts,
/**
* @todo
*/
loadPending: function() {
var scriptName = pendingLoad.shift();
if ( !scriptName )
return;
var scriptSrc = getUrl( 'core/' + scriptName + '.js' );
var script = document.createElement( 'script' );
script.type = 'text/javascript';
script.src = scriptSrc;
function onScriptLoaded() {
// Append this script to the list of loaded scripts.
CKEDITOR.loader.loadedScripts.push( scriptName );
// Load the next.
CKEDITOR.loader.loadPending();
}
// We must guarantee the execution order of the scripts, so we
// need to load them one by one. (http://dev.ckeditor.com/ticket/4145)
// The following if/else block has been taken from the scriptloader core code.
if ( typeof script.onreadystatechange !== 'undefined' ) {
/** @ignore */
script.onreadystatechange = function() {
if ( script.readyState == 'loaded' || script.readyState == 'complete' ) {
script.onreadystatechange = null;
onScriptLoaded();
}
};
} else {
/** @ignore */
script.onload = function() {
// Some browsers, such as Safari, may call the onLoad function
// immediately. Which will break the loading sequence. (http://dev.ckeditor.com/ticket/3661)
setTimeout( function() {
onScriptLoaded( scriptName );
}, 0 );
};
}
document.body.appendChild( script );
},
/**
* Loads a specific script, including its dependencies. This is not a
* synchronous loading, which means that the code to be loaded will
* not necessarily be available after this call.
*
* CKEDITOR.loader.load( 'dom/element' );
*
* @param {String} scriptName
* @param {Boolean} [defer=false]
* @todo params
*/
load: function( scriptName, defer ) {
// Check if the script has already been loaded.
if ( ( 's:' + scriptName ) in this.loadedScripts )
return;
// Get the script dependencies list.
var dependencies = scripts[ scriptName ];
if ( !dependencies )
throw 'The script name"' + scriptName + '" is not defined.';
// Mark the script as loaded, even before really loading it, to
// avoid cross references recursion.
// Prepend script name with 's:' to avoid conflict with Array's methods.
this.loadedScripts[ 's:' + scriptName ] = true;
// Load all dependencies first.
for ( var i = 0; i < dependencies.length; i++ )
this.load( dependencies[ i ], true );
var scriptSrc = getUrl( 'core/' + scriptName + '.js' );
// Append the <script> element to the DOM.
// If the page is fully loaded, we can't use document.write
// but if the script is run while the body is loading then it's safe to use it
// Unfortunately, Firefox <3.6 doesn't support document.readyState, so it won't get this improvement
if ( document.body && ( !document.readyState || document.readyState == 'complete' ) ) {
pendingLoad.push( scriptName );
if ( !defer )
this.loadPending();
} else {
// Append this script to the list of loaded scripts.
this.loadedScripts.push( scriptName );
document.write( '<script src="' + scriptSrc + '" type="text/javascript"><\/script>' );
}
}
};
} )();
}
// Check if any script has been defined for autoload.
if ( CKEDITOR._autoLoad ) {
CKEDITOR.loader.load( CKEDITOR._autoLoad );
delete CKEDITOR._autoLoad;
}
