/**
* @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.resourceManager} class, which is
* the base for resource managers, like plugins.
*/
/**
* Base class for resource managers, like plugins. This class is not
* intended to be used out of the CKEditor core code.
*
* @class
* @constructor Creates a resourceManager class instance.
* @param {String} basePath The path for the resources folder.
* @param {String} fileName The name used for resource files.
*/
CKEDITOR.resourceManager = function( basePath, fileName ) {
/**
* The base directory containing all resources.
*
* @property {String}
*/
this.basePath = basePath;
/**
* The name used for resource files.
*
* @property {String}
*/
this.fileName = fileName;
/**
* Contains references to all resources that have already been registered
* with {@link #add}.
*/
this.registered = {};
/**
* Contains references to all resources that have already been loaded
* with {@link #load}.
*/
this.loaded = {};
/**
* Contains references to all resources that have already been registered
* with {@link #addExternal}.
*/
this.externals = {};
/**
* @private
*/
this._ = {
// List of callbacks waiting for plugins to be loaded.
waitingList: {}
};
};
CKEDITOR.resourceManager.prototype = {
/**
* Registers a resource.
*
* CKEDITOR.plugins.add( 'sample', { ... plugin definition ... } );
*
* @param {String} name The resource name.
* @param {Object} [definition] The resource definition.
* @see CKEDITOR.pluginDefinition
*/
add: function( name, definition ) {
if ( this.registered[ name ] )
throw new Error( '[CKEDITOR.resourceManager.add] The resource name "' + name + '" is already registered.' );
var resource = this.registered[ name ] = definition || {};
resource.name = name;
resource.path = this.getPath( name );
CKEDITOR.fire( name + CKEDITOR.tools.capitalize( this.fileName ) + 'Ready', resource );
return this.get( name );
},
/**
* Gets the definition of a specific resource.
*
* var definition = CKEDITOR.plugins.get( 'sample' );
*
* @param {String} name The resource name.
* @returns {Object} The registered object.
*/
get: function( name ) {
return this.registered[ name ] || null;
},
/**
* Get the folder path for a specific loaded resource.
*
* alert( CKEDITOR.plugins.getPath( 'sample' ) ); // '<editor path>/plugins/sample/'
*
* @param {String} name The resource name.
* @returns {String}
*/
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.
*
* alert( CKEDITOR.plugins.getFilePath( 'sample' ) ); // '<editor path>/plugins/sample/plugin.js'
*
* @param {String} name The resource name.
* @returns {String}
*/
getFilePath: function( name ) {
var external = this.externals[ name ];
return CKEDITOR.getUrl( this.getPath( name ) + ( external ? external.file : this.fileName + '.js' ) );
},
/**
* Registers one or more resources to be loaded from an external path
* instead of the core base path.
*
* // Loads a plugin from '/myplugins/sample/plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/' );
*
* // Loads a plugin from '/myplugins/sample/my_plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/', 'my_plugin.js' );
*
* // Loads a plugin from '/myplugins/sample/my_plugin.js'.
* CKEDITOR.plugins.addExternal( 'sample', '/myplugins/sample/my_plugin.js', '' );
*
* @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 `path` argument
* is already the full path.
*/
addExternal: function( names, path, fileName ) {
names = names.split( ',' );
for ( var i = 0; i < names.length; i++ ) {
var name = names[ i ];
// If "fileName" is not provided, we assume that it may be available
// in "path". Try to extract it in this case.
if ( !fileName ) {
path = path.replace( /[^\/]+$/, function( match ) {
fileName = match;
return '';
} );
}
this.externals[ name ] = {
dir: path,
// Use the default file name if there is no "fileName" and it
// was not found in "path".
file: fileName || ( this.fileName + '.js' )
};
}
},
/**
* Loads one or more resources.
*
* CKEDITOR.plugins.load( 'myplugin', function( plugins ) {
* alert( plugins[ 'myplugin' ] ); // object
* } );
*
* @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.
*/
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 new Error( '[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 );
}
};
