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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @fileOverview Defines the {@link CKEDITOR.resourceManager} class, which is
* the base for resource managers, like plugins and themes.
*/
/**
* Base class for resource managers, like plugins and themes. This class is not
* intended to be used out of the CKEditor core code.
* @param {String} basePath The path for the resources folder.
* @param {String} fileName The name used for resource files.
* @namespace
* @example
*/
CKEDITOR.resourceManager = function( basePath, fileName )
{
/**
* The base directory containing all resources.
* @name CKEDITOR.resourceManager.prototype.basePath
* @type String
* @example
*/
this.basePath = basePath;
/**
* The name used for resource files.
* @name CKEDITOR.resourceManager.prototype.fileName
* @type String
* @example
*/
this.fileName = fileName;
/**
* Contains references to all resources that have already been registered
* with {@link #add}.
* @name CKEDITOR.resourceManager.prototype.registered
* @type Object
* @example
*/
this.registered = {};
/**
* Contains references to all resources that have already been loaded
* with {@link #load}.
* @name CKEDITOR.resourceManager.prototype.loaded
* @type Object
* @example
*/
this.loaded = {};
/**
* Contains references to all resources that have already been registered
* with {@link #addExternal}.
* @name CKEDITOR.resourceManager.prototype.externals
* @type Object
* @example
*/
this.externals = {};
/**
* @private
*/
this._ =
{
// List of callbacks waiting for plugins to be loaded.
waitingList : {}
};
};
CKEDITOR.resourceManager.prototype =
{
/**
* Registers a resource.
* @param {String} name The resource name.
* @param {Object} [definition] The resource definition.
* @example
* CKEDITOR.plugins.add( 'sample', { ... plugin definition ... } );
* @see CKEDITOR.pluginDefinition
*/
add : function( name, definition )
{
if ( this.registered[ name ] )
throw '[CKEDITOR.resourceManager.add] The resource name "' + name + '" is already registered.';
CKEDITOR.fire( name + CKEDITOR.tools.capitalize( this.fileName ) + 'Ready',
this.registered[ name ] = definition || {} );
},
/**
* Gets the definition of a specific resource.
* @param {String} name The resource name.
* @type Object
* @example
* var definition = <b>CKEDITOR.plugins.get( 'sample' )</b>;
*/
get : function( name )
{
return this.registered[ name ] || null;
},
/**
* Get the folder path for a specific loaded resource.
* @param {String} name The resource name.
* @type String
* @example
* alert( <b>CKEDITOR.plugins.getPath( 'sample' )</b> ); // "<editor path>/plugins/sample/"
*/
getPath : function( name )
{
var external = this.externals[ name ];
return CKEDITOR.getUrl( ( external && external.dir ) || this.basePath + name + '/' );
},
/**
* Get the file path for a specific loaded resource.
* @param {String} name The resource name.
* @type String
* @example
* alert( <b>CKEDITOR.plugins.getFilePath( 'sample' )</b> ); // "<editor path>/plugins/sample/plugin.js"
*/
getFilePath : function( name )
{
var external = this.externals[ name ];
return CKEDITOR.getUrl(
this.getPath( name ) +
( ( external && ( typeof external.file == 'string' ) ) ? external.file : this.fileName + '.js' ) );
},
/**
* Registers one or more resources to be loaded from an external path
* instead of the core base path.
* @param {String} names The resource names, separated by commas.
* @param {String} path The path of the folder containing the resource.
* @param {String} [fileName] The resource file name. If not provided, the
* default name is used; If provided with a empty string, will implicitly indicates that {@param path}
* is already the full path.
* @example
* // Loads a plugin from '/myplugin/samples/plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/' );
* @example
* // Loads a plugin from '/myplugin/samples/my_plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/', 'my_plugin.js' );
* @example
* // Loads a plugin from '/myplugin/samples/my_plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/my_plugin.js', '' );
*/
addExternal : function( names, path, fileName )
{
names = names.split( ',' );
for ( var i = 0 ; i < names.length ; i++ )
{
var name = names[ i ];
this.externals[ name ] =
{
dir : path,
file : fileName
};
}
},
/**
* Loads one or more resources.
* @param {String|Array} name The name of the resource to load. It may be a
* string with a single resource name, or an array with several names.
* @param {Function} callback A function to be called when all resources
* are loaded. The callback will receive an array containing all
* loaded names.
* @param {Object} [scope] The scope object to be used for the callback
* call.
* @example
* <b>CKEDITOR.plugins.load</b>( 'myplugin', function( plugins )
* {
* alert( plugins['myplugin'] ); // "object"
* });
*/
load : function( names, callback, scope )
{
// Ensure that we have an array of names.
if ( !CKEDITOR.tools.isArray( names ) )
names = names ? [ names ] : [];
var loaded = this.loaded,
registered = this.registered,
urls = [],
urlsNames = {},
resources = {};
// Loop through all names.
for ( var i = 0 ; i < names.length ; i++ )
{
var name = names[ i ];
if ( !name )
continue;
// If not available yet.
if ( !loaded[ name ] && !registered[ name ] )
{
var url = this.getFilePath( name );
urls.push( url );
if ( !( url in urlsNames ) )
urlsNames[ url ] = [];
urlsNames[ url ].push( name );
}
else
resources[ name ] = this.get( name );
}
CKEDITOR.scriptLoader.load( urls, function( completed, failed )
{
if ( failed.length )
{
throw '[CKEDITOR.resourceManager.load] Resource name "' + urlsNames[ failed[ 0 ] ].join( ',' )
+ '" was not found at "' + failed[ 0 ] + '".';
}
for ( var i = 0 ; i < completed.length ; i++ )
{
var nameList = urlsNames[ completed[ i ] ];
for ( var j = 0 ; j < nameList.length ; j++ )
{
var name = nameList[ j ];
resources[ name ] = this.get( name );
loaded[ name ] = 1;
}
}
callback.call( scope, resources );
}
, this);
}
};
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