--- /dev/null
+/*
+ * Core MediaWiki JavaScript Library
+ */
+
+// Attach to window and globally alias
+window.mw = window.mediaWiki = new ( function( $ ) {
+
+ /* Private Members */
+
+ /**
+ * @var object List of messages that have been requested to be loaded.
+ */
+ var messageQueue = {};
+
+ /* Object constructors */
+
+ /**
+ * Map
+ *
+ * Creates an object that can be read from or written to from prototype functions
+ * that allow both single and multiple variables at once.
+ *
+ * @param global boolean Whether to store the values in the global window
+ * object or a exclusively in the object property 'values'.
+ * @return Map
+ */
+ function Map( global ) {
+ this.values = ( global === true ) ? window : {};
+ return this;
+ }
+
+ Map.prototype = {
+ /**
+ * Get the value of one or multiple a keys.
+ *
+ * If called with no arguments, all values will be returned.
+ *
+ * @param selection mixed String key or array of keys to get values for.
+ * @param fallback mixed Value to use in case key(s) do not exist (optional).
+ * @return mixed If selection was a string returns the value or null,
+ * If selection was an array, returns an object of key/values (value is null if not found),
+ * If selection was not passed or invalid, will return the 'values' object member (be careful as
+ * objects are always passed by reference in JavaScript!).
+ * @return Values as a string or object, null if invalid/inexistant.
+ */
+ get: function( selection, fallback ) {
+ if ( $.isArray( selection ) ) {
+ selection = $.makeArray( selection );
+ var results = {};
+ for ( var i = 0; i < selection.length; i++ ) {
+ results[selection[i]] = this.get( selection[i], fallback );
+ }
+ return results;
+ } else if ( typeof selection === 'string' ) {
+ if ( this.values[selection] === undefined ) {
+ if ( fallback !== undefined ) {
+ return fallback;
+ }
+ return null;
+ }
+ return this.values[selection];
+ }
+ if ( selection === undefined ) {
+ return this.values;
+ } else {
+ return null; // invalid selection key
+ }
+ },
+
+ /**
+ * Sets one or multiple key/value pairs.
+ *
+ * @param selection mixed String key or array of keys to set values for.
+ * @param value mixed Value to set (optional, only in use when key is a string)
+ * @return bool This returns true on success, false on failure.
+ */
+ set: function( selection, value ) {
+ if ( $.isPlainObject( selection ) ) {
+ for ( var s in selection ) {
+ this.values[s] = selection[s];
+ }
+ return true;
+ } else if ( typeof selection === 'string' && value !== undefined ) {
+ this.values[selection] = value;
+ return true;
+ }
+ return false;
+ },
+
+ /**
+ * Checks if one or multiple keys exist.
+ *
+ * @param selection mixed String key or array of keys to check
+ * @return boolean Existence of key(s)
+ */
+ exists: function( selection ) {
+ if ( typeof selection === 'object' ) {
+ for ( var s = 0; s < selection.length; s++ ) {
+ if ( !( selection[s] in this.values ) ) {
+ return false;
+ }
+ }
+ return true;
+ } else {
+ return selection in this.values;
+ }
+ }
+ };
+
+ /**
+ * Message
+ *
+ * Object constructor for messages,
+ * similar to the Message class in MediaWiki PHP.
+ *
+ * @param map Map Instance of mw.Map
+ * @param key String
+ * @param parameters Array
+ * @return Message
+ */
+ function Message( map, key, parameters ) {
+ this.format = 'plain';
+ this.map = map;
+ this.key = key;
+ this.parameters = parameters === undefined ? [] : $.makeArray( parameters );
+ return this;
+ }
+
+ Message.prototype = {
+ /**
+ * Appends (does not replace) parameters for replacement to the .parameters property.
+ *
+ * @param parameters Array
+ * @return Message
+ */
+ params: function( parameters ) {
+ for ( var i = 0; i < parameters.length; i++ ) {
+ this.parameters.push( parameters[i] );
+ }
+ return this;
+ },
+
+ /**
+ * Converts message object to it's string form based on the state of format.
+ *
+ * @return string Message as a string in the current form or <key> if key does not exist.
+ */
+ toString: function() {
+
+ if ( !this.map.exists( this.key ) ) {
+ // Use <key> as text if key does not exist
+ if ( this.format !== 'plain' ) {
+ // format 'escape' and 'parse' need to have the brackets and key html escaped
+ return mw.html.escape( '<' + this.key + '>' );
+ }
+ return '<' + this.key + '>';
+ }
+ var text = this.map.get( this.key ),
+ parameters = this.parameters;
+
+ text = text.replace( /\$(\d+)/g, function( string, match ) {
+ var index = parseInt( match, 10 ) - 1;
+ return index in parameters ? parameters[index] : '$' + match;
+ } );
+
+ if ( this.format === 'plain' ) {
+ return text;
+ }
+ if ( this.format === 'escaped' ) {
+ // According to Message.php this needs {{-transformation, which is
+ // still todo
+ return mw.html.escape( text );
+ }
+
+ /* This should be fixed up when we have a parser
+ if ( this.format === 'parse' && 'language' in mw ) {
+ text = mw.language.parse( text );
+ }
+ */
+ return text;
+ },
+
+ /**
+ * Changes format to parse and converts message to string
+ *
+ * @return {string} String form of parsed message
+ */
+ parse: function() {
+ this.format = 'parse';
+ return this.toString();
+ },
+
+ /**
+ * Changes format to plain and converts message to string
+ *
+ * @return {string} String form of plain message
+ */
+ plain: function() {
+ this.format = 'plain';
+ return this.toString();
+ },
+
+ /**
+ * Changes the format to html escaped and converts message to string
+ *
+ * @return {string} String form of html escaped message
+ */
+ escaped: function() {
+ this.format = 'escaped';
+ return this.toString();
+ },
+
+ /**
+ * Checks if message exists
+ *
+ * @return {string} String form of parsed message
+ */
+ exists: function() {
+ return this.map.exists( this.key );
+ }
+ };
+
+ /* Public Members */
+
+ /*
+ * Dummy function which in debug mode can be replaced with a function that
+ * emulates console.log in console-less environments.
+ */
+ this.log = function() { };
+
+ /**
+ * @var constructor Make the Map constructor publicly available.
+ */
+ this.Map = Map;
+
+ /**
+ * List of configuration values
+ *
+ * Dummy placeholder. Initiated in startUp module as a new instance of mw.Map().
+ * If $wgLegacyJavaScriptGlobals is true, this Map will have its values
+ * in the global window object.
+ */
+ this.config = null;
+
+ /**
+ * @var object
+ *
+ * Empty object that plugins can be installed in.
+ */
+ this.libs = {};
+
+ /*
+ * Localization system
+ */
+ this.messages = new this.Map();
+
+ /* Public Methods */
+
+ /**
+ * Gets a message object, similar to wfMessage()
+ *
+ * @param key string Key of message to get
+ * @param parameter_1 mixed First argument in a list of variadic arguments,
+ * each a parameter for $N replacement in messages.
+ * @return Message
+ */
+ this.message = function( key, parameter_1 /* [, parameter_2] */ ) {
+ var parameters;
+ // Support variadic arguments
+ if ( parameter_1 !== undefined ) {
+ parameters = $.makeArray( arguments );
+ parameters.shift();
+ } else {
+ parameters = [];
+ }
+ return new Message( mw.messages, key, parameters );
+ };
+
+ /**
+ * Gets a message string, similar to wfMsg()
+ *
+ * @param key string Key of message to get
+ * @param parameters mixed First argument in a list of variadic arguments,
+ * each a parameter for $N replacement in messages.
+ * @return String.
+ */
+ this.msg = function( key, parameters ) {
+ return mw.message.apply( mw.message, arguments ).toString();
+ };
+
+ /**
+ * Client-side module loader which integrates with the MediaWiki ResourceLoader
+ */
+ this.loader = new ( function() {
+
+ /* Private Members */
+
+ /**
+ * Mapping of registered modules
+ *
+ * The jquery module is pre-registered, because it must have already
+ * been provided for this object to have been built, and in debug mode
+ * jquery would have been provided through a unique loader request,
+ * making it impossible to hold back registration of jquery until after
+ * mediawiki.
+ *
+ * For exact details on support for script, style and messages, look at
+ * mw.loader.implement.
+ *
+ * Format:
+ * {
+ * 'moduleName': {
+ * 'version': ############## (unix timestamp),
+ * 'dependencies': ['required.foo', 'bar.also', ...], (or) function() {}
+ * 'group': 'somegroup', (or) null,
+ * 'source': 'local', 'someforeignwiki', (or) null
+ * 'state': 'registered', 'loading', 'loaded', 'ready', or 'error'
+ * 'script': ...,
+ * 'style': ...,
+ * 'messages': { 'key': 'value' },
+ * }
+ * }
+ */
+ var registry = {},
+ /**
+ * Mapping of sources, keyed by source-id, values are objects.
+ * Format:
+ * {
+ * 'sourceId': {
+ * 'loadScript': 'http://foo.bar/w/load.php'
+ * }
+ * }
+ */
+ sources = {},
+ // List of modules which will be loaded as when ready
+ batch = [],
+ // List of modules to be loaded
+ queue = [],
+ // List of callback functions waiting for modules to be ready to be called
+ jobs = [],
+ // Flag inidicating that document ready has occured
+ ready = false,
+ // Selector cache for the marker element. Use getMarker() to get/use the marker!
+ $marker = null;
+
+ /* Private Methods */
+
+ function getMarker(){
+ // Cached ?
+ if ( $marker ) {
+ return $marker;
+ } else {
+ $marker = $( 'meta[name="ResourceLoaderDynamicStyles"]' );
+ if ( $marker.length ) {
+ return $marker;
+ }
+ mw.log( 'getMarker> No <meta name="ResourceLoaderDynamicStyles"> found, inserting dynamically.' );
+ $marker = $( '<meta>' ).attr( 'name', 'ResourceLoaderDynamicStyles' ).appendTo( 'head' );
+ return $marker;
+ }
+ }
+
+ function compare( a, b ) {
+ if ( a.length !== b.length ) {
+ return false;
+ }
+ for ( var i = 0; i < b.length; i++ ) {
+ if ( $.isArray( a[i] ) ) {
+ if ( !compare( a[i], b[i] ) ) {
+ return false;
+ }
+ }
+ if ( a[i] !== b[i] ) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Generates an ISO8601 "basic" string from a UNIX timestamp
+ */
+ function formatVersionNumber( timestamp ) {
+ var pad = function( a, b, c ) {
+ return [a < 10 ? '0' + a : a, b < 10 ? '0' + b : b, c < 10 ? '0' + c : c].join( '' );
+ },
+ d = new Date();
+ d.setTime( timestamp * 1000 );
+ return [
+ pad( d.getUTCFullYear(), d.getUTCMonth() + 1, d.getUTCDate() ), 'T',
+ pad( d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds() ), 'Z'
+ ].join( '' );
+ }
+
+ /**
+ * Recursively resolves dependencies and detects circular references
+ */
+ function recurse( module, resolved, unresolved ) {
+ if ( registry[module] === undefined ) {
+ throw new Error( 'Unknown dependency: ' + module );
+ }
+ // Resolves dynamic loader function and replaces it with its own results
+ if ( $.isFunction( registry[module].dependencies ) ) {
+ registry[module].dependencies = registry[module].dependencies();
+ // Ensures the module's dependencies are always in an array
+ if ( typeof registry[module].dependencies !== 'object' ) {
+ registry[module].dependencies = [registry[module].dependencies];
+ }
+ }
+ // Tracks down dependencies
+ for ( var n = 0; n < registry[module].dependencies.length; n++ ) {
+ if ( $.inArray( registry[module].dependencies[n], resolved ) === -1 ) {
+ if ( $.inArray( registry[module].dependencies[n], unresolved ) !== -1 ) {
+ throw new Error(
+ 'Circular reference detected: ' + module +
+ ' -> ' + registry[module].dependencies[n]
+ );
+ }
+ recurse( registry[module].dependencies[n], resolved, unresolved );
+ }
+ }
+ resolved[resolved.length] = module;
+ unresolved.splice( $.inArray( module, unresolved ), 1 );
+ }
+
+ /**
+ * Gets a list of module names that a module depends on in their proper dependency order
+ *
+ * @param module string module name or array of string module names
+ * @return list of dependencies
+ * @throws Error if circular reference is detected
+ */
+ function resolve( module ) {
+ // Allow calling with an array of module names
+ if ( typeof module === 'object' ) {
+ var modules = [];
+ for ( var m = 0; m < module.length; m++ ) {
+ var dependencies = resolve( module[m] );
+ for ( var n = 0; n < dependencies.length; n++ ) {
+ modules[modules.length] = dependencies[n];
+ }
+ }
+ return modules;
+ } else if ( typeof module === 'string' ) {
+ // Undefined modules have no dependencies
+ if ( !( module in registry ) ) {
+ return [];
+ }
+ var resolved = [];
+ recurse( module, resolved, [] );
+ return resolved;
+ }
+ throw new Error( 'Invalid module argument: ' + module );
+ }
+
+ /**
+ * Narrows a list of module names down to those matching a specific
+ * state. Possible states are 'undefined', 'registered', 'loading',
+ * 'loaded', or 'ready'
+ *
+ * @param states string or array of strings of module states to filter by
+ * @param modules array list of module names to filter (optional, all modules
+ * will be used by default)
+ * @return array list of filtered module names
+ */
+ function filter( states, modules ) {
+ // Allow states to be given as a string
+ if ( typeof states === 'string' ) {
+ states = [states];
+ }
+ // If called without a list of modules, build and use a list of all modules
+ var list = [], module;
+ if ( modules === undefined ) {
+ modules = [];
+ for ( module in registry ) {
+ modules[modules.length] = module;
+ }
+ }
+ // Build a list of modules which are in one of the specified states
+ for ( var s = 0; s < states.length; s++ ) {
+ for ( var m = 0; m < modules.length; m++ ) {
+ if ( registry[modules[m]] === undefined ) {
+ // Module does not exist
+ if ( states[s] === 'undefined' ) {
+ // OK, undefined
+ list[list.length] = modules[m];
+ }
+ } else {
+ // Module exists, check state
+ if ( registry[modules[m]].state === states[s] ) {
+ // OK, correct state
+ list[list.length] = modules[m];
+ }
+ }
+ }
+ }
+ return list;
+ }
+
+ /**
+ * Executes a loaded module, making it ready to use
+ *
+ * @param module string module name to execute
+ */
+ function execute( module, callback ) {
+ if ( registry[module] === undefined ) {
+ throw new Error( 'Module has not been registered yet: ' + module );
+ } else if ( registry[module].state === 'registered' ) {
+ throw new Error( 'Module has not been requested from the server yet: ' + module );
+ } else if ( registry[module].state === 'loading' ) {
+ throw new Error( 'Module has not completed loading yet: ' + module );
+ } else if ( registry[module].state === 'ready' ) {
+ throw new Error( 'Module has already been loaded: ' + module );
+ }
+ // Add styles
+ var style;
+ if ( $.isPlainObject( registry[module].style ) ) {
+ for ( var media in registry[module].style ) {
+ style = registry[module].style[media];
+ if ( $.isArray( style ) ) {
+ for ( var i = 0; i < style.length; i++ ) {
+ getMarker().before( mw.html.element( 'link', {
+ 'type': 'text/css',
+ 'media': media,
+ 'rel': 'stylesheet',
+ 'href': style[i]
+ } ) );
+ }
+ } else if ( typeof style === 'string' ) {
+ getMarker().before( mw.html.element( 'style', {
+ 'type': 'text/css',
+ 'media': media
+ }, new mw.html.Cdata( style ) ) );
+ }
+ }
+ }
+ // Add localizations to message system
+ if ( $.isPlainObject( registry[module].messages ) ) {
+ mw.messages.set( registry[module].messages );
+ }
+ // Execute script
+ try {
+ var script = registry[module].script,
+ markModuleReady = function() {
+ registry[module].state = 'ready';
+ handlePending( module );
+ if ( $.isFunction( callback ) ) {
+ callback();
+ }
+ },
+ nestedAddScript = function( arr, callback, i ) {
+ // Recursively call addScript() in its own callback
+ // for each element of arr.
+ if ( i >= arr.length ) {
+ // We're at the end of the array
+ callback();
+ return;
+ }
+
+ addScript( arr[i], function() {
+ nestedAddScript( arr, callback, i + 1 );
+ } );
+ };
+
+ if ( $.isArray( script ) ) {
+ registry[module].state = 'loading';
+ nestedAddScript( script, markModuleReady, 0 );
+ } else if ( $.isFunction( script ) ) {
+ script( $ );
+ markModuleReady();
+ }
+ } catch ( e ) {
+ // This needs to NOT use mw.log because these errors are common in production mode
+ // and not in debug mode, such as when a symbol that should be global isn't exported
+ if ( window.console && typeof window.console.log === 'function' ) {
+ console.log( 'mw.loader::execute> Exception thrown by ' + module + ': ' + e.message );
+ }
+ registry[module].state = 'error';
+ throw e;
+ }
+ }
+
+ /**
+ * Automatically executes jobs and modules which are pending with satistifed dependencies.
+ *
+ * This is used when dependencies are satisfied, such as when a module is executed.
+ */
+ function handlePending( module ) {
+ try {
+ // Run jobs who's dependencies have just been met
+ for ( var j = 0; j < jobs.length; j++ ) {
+ if ( compare(
+ filter( 'ready', jobs[j].dependencies ),
+ jobs[j].dependencies ) )
+ {
+ if ( $.isFunction( jobs[j].ready ) ) {
+ jobs[j].ready();
+ }
+ jobs.splice( j, 1 );
+ j--;
+ }
+ }
+ // Execute modules who's dependencies have just been met
+ for ( var r in registry ) {
+ if ( registry[r].state === 'loaded' ) {
+ if ( compare(
+ filter( ['ready'], registry[r].dependencies ),
+ registry[r].dependencies ) )
+ {
+ execute( r );
+ }
+ }
+ }
+ } catch ( e ) {
+ // Run error callbacks of jobs affected by this condition
+ for ( var j = 0; j < jobs.length; j++ ) {
+ if ( $.inArray( module, jobs[j].dependencies ) !== -1 ) {
+ if ( $.isFunction( jobs[j].error ) ) {
+ jobs[j].error();
+ }
+ jobs.splice( j, 1 );
+ j--;
+ }
+ }
+ }
+ }
+
+ /**
+ * Adds a dependencies to the queue with optional callbacks to be run
+ * when the dependencies are ready or fail
+ *
+ * @param dependencies string module name or array of string module names
+ * @param ready function callback to execute when all dependencies are ready
+ * @param error function callback to execute when any dependency fails
+ */
+ function request( dependencies, ready, error ) {
+ // Allow calling by single module name
+ if ( typeof dependencies === 'string' ) {
+ dependencies = [dependencies];
+ if ( dependencies[0] in registry ) {
+ // Cache repetitively accessed deep level object member
+ var regItemDeps = registry[dependencies[0]].dependencies,
+ // Cache to avoid looped access to length property
+ regItemDepLen = regItemDeps.length;
+ for ( var n = 0; n < regItemDepLen; n++ ) {
+ dependencies[dependencies.length] = regItemDeps[n];
+ }
+ }
+ }
+ // Add ready and error callbacks if they were given
+ if ( arguments.length > 1 ) {
+ jobs[jobs.length] = {
+ 'dependencies': filter(
+ ['undefined', 'registered', 'loading', 'loaded'],
+ dependencies
+ ),
+ 'ready': ready,
+ 'error': error
+ };
+ }
+ // Queue up any dependencies that are undefined or registered
+ dependencies = filter( ['undefined', 'registered'], dependencies );
+ for ( var n = 0; n < dependencies.length; n++ ) {
+ if ( $.inArray( dependencies[n], queue ) === -1 ) {
+ queue[queue.length] = dependencies[n];
+ }
+ }
+ // Work the queue
+ mw.loader.work();
+ }
+
+ function sortQuery(o) {
+ var sorted = {}, key, a = [];
+ for ( key in o ) {
+ if ( o.hasOwnProperty( key ) ) {
+ a.push( key );
+ }
+ }
+ a.sort();
+ for ( key = 0; key < a.length; key++ ) {
+ sorted[a[key]] = o[a[key]];
+ }
+ return sorted;
+ }
+
+ /**
+ * Converts a module map of the form { foo: [ 'bar', 'baz' ], bar: [ 'baz, 'quux' ] }
+ * to a query string of the form foo.bar,baz|bar.baz,quux
+ */
+ function buildModulesString( moduleMap ) {
+ var arr = [], p;
+ for ( var prefix in moduleMap ) {
+ p = prefix === '' ? '' : prefix + '.';
+ arr.push( p + moduleMap[prefix].join( ',' ) );
+ }
+ return arr.join( '|' );
+ }
+
+ /**
+ * Adds a script tag to the body, either using document.write or low-level DOM manipulation,
+ * depending on whether document-ready has occured yet.
+ *
+ * @param src String: URL to script, will be used as the src attribute in the script tag
+ * @param callback Function: Optional callback which will be run when the script is done
+ */
+ function addScript( src, callback ) {
+ var done = false, script;
+ if ( ready ) {
+ // jQuery's getScript method is NOT better than doing this the old-fashioned way
+ // because jQuery will eval the script's code, and errors will not have sane
+ // line numbers.
+ script = document.createElement( 'script' );
+ script.setAttribute( 'src', src );
+ script.setAttribute( 'type', 'text/javascript' );
+ if ( $.isFunction( callback ) ) {
+ // Attach handlers for all browsers -- this is based on jQuery.ajax
+ script.onload = script.onreadystatechange = function() {
+
+ if (
+ !done
+ && (
+ !script.readyState
+ || /loaded|complete/.test( script.readyState )
+ )
+ ) {
+
+ done = true;
+
+ // Handle memory leak in IE
+ script.onload = script.onreadystatechange = null;
+
+ callback();
+
+ if ( script.parentNode ) {
+ script.parentNode.removeChild( script );
+ }
+
+ // Dereference the script
+ script = undefined;
+ }
+ };
+ }
+ document.body.appendChild( script );
+ } else {
+ document.write( mw.html.element(
+ 'script', { 'type': 'text/javascript', 'src': src }, ''
+ ) );
+ if ( $.isFunction( callback ) ) {
+ // Document.write is synchronous, so this is called when it's done
+ callback();
+ }
+ }
+ }
+
+ /**
+ * Asynchronously append a script tag to the end of the body
+ * that invokes load.php
+ * @param moduleMap {Object}: Module map, see buildModulesString()
+ * @param currReqBase {Object}: Object with other parameters (other than 'modules') to use in the request
+ * @param sourceLoadScript {String}: URL of load.php
+ */
+ function doRequest( moduleMap, currReqBase, sourceLoadScript ) {
+ var request = $.extend(
+ { 'modules': buildModulesString( moduleMap ) },
+ currReqBase
+ );
+ request = sortQuery( request );
+ // Asynchronously append a script tag to the end of the body
+ // Append &* to avoid triggering the IE6 extension check
+ addScript( sourceLoadScript + '?' + $.param( request ) + '&*' );
+ }
+
+ /* Public Methods */
+
+ /**
+ * Requests dependencies from server, loading and executing when things when ready.
+ */
+ this.work = function() {
+ // Build a list of request parameters common to all requests.
+ var reqBase = {
+ skin: mw.config.get( 'skin' ),
+ lang: mw.config.get( 'wgUserLanguage' ),
+ debug: mw.config.get( 'debug' )
+ },
+ // Split module batch by source and by group.
+ splits = {},
+ maxQueryLength = mw.config.get( 'wgResourceLoaderMaxQueryLength', -1 );
+
+ // Appends a list of modules from the queue to the batch
+ for ( var q = 0; q < queue.length; q++ ) {
+ // Only request modules which are undefined or registered
+ if ( !( queue[q] in registry ) || registry[queue[q]].state === 'registered' ) {
+ // Prevent duplicate entries
+ if ( $.inArray( queue[q], batch ) === -1 ) {
+ batch[batch.length] = queue[q];
+ // Mark registered modules as loading
+ if ( queue[q] in registry ) {
+ registry[queue[q]].state = 'loading';
+ }
+ }
+ }
+ }
+ // Early exit if there's nothing to load...
+ if ( !batch.length ) {
+ return;
+ }
+
+ // The queue has been processed into the batch, clear up the queue.
+ queue = [];
+
+ // Always order modules alphabetically to help reduce cache
+ // misses for otherwise identical content.
+ batch.sort();
+
+ // Split batch by source and by group.
+ for ( var b = 0; b < batch.length; b++ ) {
+ var bSource = registry[batch[b]].source,
+ bGroup = registry[batch[b]].group;
+ if ( !( bSource in splits ) ) {
+ splits[bSource] = {};
+ }
+ if ( !( bGroup in splits[bSource] ) ) {
+ splits[bSource][bGroup] = [];
+ }
+ var bSourceGroup = splits[bSource][bGroup];
+ bSourceGroup[bSourceGroup.length] = batch[b];
+ }
+
+ // Clear the batch - this MUST happen before we append any
+ // script elements to the body or it's possible that a script
+ // will be locally cached, instantly load, and work the batch
+ // again, all before we've cleared it causing each request to
+ // include modules which are already loaded.
+ batch = [];
+
+ var source, group, modules, maxVersion, sourceLoadScript;
+
+ for ( source in splits ) {
+
+ sourceLoadScript = sources[source].loadScript;
+
+ for ( group in splits[source] ) {
+
+ // Cache access to currently selected list of
+ // modules for this group from this source.
+ modules = splits[source][group];
+
+ // Calculate the highest timestamp
+ maxVersion = 0;
+ for ( var g = 0; g < modules.length; g++ ) {
+ if ( registry[modules[g]].version > maxVersion ) {
+ maxVersion = registry[modules[g]].version;
+ }
+ }
+
+ var currReqBase = $.extend( { 'version': formatVersionNumber( maxVersion ) }, reqBase ),
+ currReqBaseLength = $.param( currReqBase ).length,
+ moduleMap = {},
+ // We may need to split up the request to honor the query string length limit,
+ // so build it piece by piece.
+ l = currReqBaseLength + 9; // '&modules='.length == 9
+
+ moduleMap = {}; // { prefix: [ suffixes ] }
+
+ for ( var i = 0; i < modules.length; i++ ) {
+ // Determine how many bytes this module would add to the query string
+ var lastDotIndex = modules[i].lastIndexOf( '.' ),
+ // Note that these substr() calls work even if lastDotIndex == -1
+ prefix = modules[i].substr( 0, lastDotIndex ),
+ suffix = modules[i].substr( lastDotIndex + 1 ),
+ bytesAdded = prefix in moduleMap
+ ? suffix.length + 3 // '%2C'.length == 3
+ : modules[i].length + 3; // '%7C'.length == 3
+
+ // If the request would become too long, create a new one,
+ // but don't create empty requests
+ if ( maxQueryLength > 0 && !$.isEmptyObject( moduleMap ) && l + bytesAdded > maxQueryLength ) {
+ // This request would become too long, create a new one
+ // and fire off the old one
+ doRequest( moduleMap, currReqBase, sourceLoadScript );
+ moduleMap = {};
+ l = currReqBaseLength + 9;
+ }
+ if ( !( prefix in moduleMap ) ) {
+ moduleMap[prefix] = [];
+ }
+ moduleMap[prefix].push( suffix );
+ l += bytesAdded;
+ }
+ // If there's anything left in moduleMap, request that too
+ if ( !$.isEmptyObject( moduleMap ) ) {
+ doRequest( moduleMap, currReqBase, sourceLoadScript );
+ }
+ }
+ }
+ };
+
+ /**
+ * Register a source.
+ *
+ * @param id {String}: Short lowercase a-Z string representing a source, only used internally.
+ * @param props {Object}: Object containing only the loadScript property which is a url to
+ * the load.php location of the source.
+ * @return {Boolean}
+ */
+ this.addSource = function( id, props ) {
+ // Allow multiple additions
+ if ( typeof id === 'object' ) {
+ for ( var source in id ) {
+ mw.loader.addSource( source, id[source] );
+ }
+ return true;
+ }
+
+ if ( sources[id] !== undefined ) {
+ throw new Error( 'source already registered: ' + id );
+ }
+
+ sources[id] = props;
+
+ return true;
+ };
+
+ /**
+ * Registers a module, letting the system know about it and its
+ * properties. Startup modules contain calls to this function.
+ *
+ * @param module {String}: Module name
+ * @param version {Number}: Module version number as a timestamp (falls backs to 0)
+ * @param dependencies {String|Array|Function}: One string or array of strings of module
+ * names on which this module depends, or a function that returns that array.
+ * @param group {String}: Group which the module is in (optional, defaults to null)
+ * @param source {String}: Name of the source. Defaults to local.
+ */
+ this.register = function( module, version, dependencies, group, source ) {
+ // Allow multiple registration
+ if ( typeof module === 'object' ) {
+ for ( var m = 0; m < module.length; m++ ) {
+ // module is an array of module names
+ if ( typeof module[m] === 'string' ) {
+ mw.loader.register( module[m] );
+ // module is an array of arrays
+ } else if ( typeof module[m] === 'object' ) {
+ mw.loader.register.apply( mw.loader, module[m] );
+ }
+ }
+ return;
+ }
+ // Validate input
+ if ( typeof module !== 'string' ) {
+ throw new Error( 'module must be a string, not a ' + typeof module );
+ }
+ if ( registry[module] !== undefined ) {
+ throw new Error( 'module already implemented: ' + module );
+ }
+ // List the module as registered
+ registry[module] = {
+ 'version': version !== undefined ? parseInt( version, 10 ) : 0,
+ 'dependencies': [],
+ 'group': typeof group === 'string' ? group : null,
+ 'source': typeof source === 'string' ? source: 'local',
+ 'state': 'registered'
+ };
+ if ( typeof dependencies === 'string' ) {
+ // Allow dependencies to be given as a single module name
+ registry[module].dependencies = [dependencies];
+ } else if ( typeof dependencies === 'object' || $.isFunction( dependencies ) ) {
+ // Allow dependencies to be given as an array of module names
+ // or a function which returns an array
+ registry[module].dependencies = dependencies;
+ }
+ };
+
+ /**
+ * Implements a module, giving the system a course of action to take
+ * upon loading. Results of a request for one or more modules contain
+ * calls to this function.
+ *
+ * All arguments are required.
+ *
+ * @param module String: Name of module
+ * @param script Mixed: Function of module code or String of URL to be used as the src
+ * attribute when adding a script element to the body
+ * @param style Object: Object of CSS strings keyed by media-type or Object of lists of URLs
+ * keyed by media-type
+ * @param msgs Object: List of key/value pairs to be passed through mw.messages.set
+ */
+ this.implement = function( module, script, style, msgs ) {
+ // Validate input
+ if ( typeof module !== 'string' ) {
+ throw new Error( 'module must be a string, not a ' + typeof module );
+ }
+ if ( !$.isFunction( script ) && !$.isArray( script ) ) {
+ throw new Error( 'script must be a function or an array, not a ' + typeof script );
+ }
+ if ( !$.isPlainObject( style ) ) {
+ throw new Error( 'style must be an object, not a ' + typeof style );
+ }
+ if ( !$.isPlainObject( msgs ) ) {
+ throw new Error( 'msgs must be an object, not a ' + typeof msgs );
+ }
+ // Automatically register module
+ if ( registry[module] === undefined ) {
+ mw.loader.register( module );
+ }
+ // Check for duplicate implementation
+ if ( registry[module] !== undefined && registry[module].script !== undefined ) {
+ throw new Error( 'module already implemented: ' + module );
+ }
+ // Mark module as loaded
+ registry[module].state = 'loaded';
+ // Attach components
+ registry[module].script = script;
+ registry[module].style = style;
+ registry[module].messages = msgs;
+ // Execute or queue callback
+ if ( compare(
+ filter( ['ready'], registry[module].dependencies ),
+ registry[module].dependencies ) )
+ {
+ execute( module );
+ } else {
+ request( module );
+ }
+ };
+
+ /**
+ * Executes a function as soon as one or more required modules are ready
+ *
+ * @param dependencies string or array of strings of modules names the callback
+ * dependencies to be ready before executing
+ * @param ready function callback to execute when all dependencies are ready (optional)
+ * @param error function callback to execute when if dependencies have a errors (optional)
+ */
+ this.using = function( dependencies, ready, error ) {
+ var tod = typeof dependencies;
+ // Validate input
+ if ( tod !== 'object' && tod !== 'string' ) {
+ throw new Error( 'dependencies must be a string or an array, not a ' + tod );
+ }
+ // Allow calling with a single dependency as a string
+ if ( tod === 'string' ) {
+ dependencies = [dependencies];
+ }
+ // Resolve entire dependency map
+ dependencies = resolve( dependencies );
+ // If all dependencies are met, execute ready immediately
+ if ( compare( filter( ['ready'], dependencies ), dependencies ) ) {
+ if ( $.isFunction( ready ) ) {
+ ready();
+ }
+ }
+ // If any dependencies have errors execute error immediately
+ else if ( filter( ['error'], dependencies ).length ) {
+ if ( $.isFunction( error ) ) {
+ error();
+ }
+ }
+ // Since some dependencies are not yet ready, queue up a request
+ else {
+ request( dependencies, ready, error );
+ }
+ };
+
+ /**
+ * Loads an external script or one or more modules for future use
+ *
+ * @param modules mixed either the name of a module, array of modules,
+ * or a URL of an external script or style
+ * @param type string mime-type to use if calling with a URL of an
+ * external script or style; acceptable values are "text/css" and
+ * "text/javascript"; if no type is provided, text/javascript is assumed.
+ */
+ this.load = function( modules, type ) {
+ // Validate input
+ if ( typeof modules !== 'object' && typeof modules !== 'string' ) {
+ throw new Error( 'modules must be a string or an array, not a ' + typeof modules );
+ }
+ // Allow calling with an external script or single dependency as a string
+ if ( typeof modules === 'string' ) {
+ // Support adding arbitrary external scripts
+ if ( /^(https?:)?\/\//.test( modules ) ) {
+ if ( type === 'text/css' ) {
+ $( 'head' ).append( $( '<link/>', {
+ rel: 'stylesheet',
+ type: 'text/css',
+ href: modules
+ } ) );
+ return true;
+ } else if ( type === 'text/javascript' || type === undefined ) {
+ addScript( modules );
+ return true;
+ }
+ // Unknown type
+ return false;
+ }
+ // Called with single module
+ modules = [modules];
+ }
+ // Resolve entire dependency map
+ modules = resolve( modules );
+ // If all modules are ready, nothing dependency be done
+ if ( compare( filter( ['ready'], modules ), modules ) ) {
+ return true;
+ }
+ // If any modules have errors return false
+ else if ( filter( ['error'], modules ).length ) {
+ return false;
+ }
+ // Since some modules are not yet ready, queue up a request
+ else {
+ request( modules );
+ return true;
+ }
+ };
+
+ /**
+ * Changes the state of a module
+ *
+ * @param module string module name or object of module name/state pairs
+ * @param state string state name
+ */
+ this.state = function( module, state ) {
+ if ( typeof module === 'object' ) {
+ for ( var m in module ) {
+ mw.loader.state( m, module[m] );
+ }
+ return;
+ }
+ if ( !( module in registry ) ) {
+ mw.loader.register( module );
+ }
+ registry[module].state = state;
+ };
+
+ /**
+ * Gets the version of a module
+ *
+ * @param module string name of module to get version for
+ */
+ this.getVersion = function( module ) {
+ if ( module in registry && 'version' in registry[module] ) {
+ return formatVersionNumber( registry[module].version );
+ }
+ return null;
+ };
+
+ /**
+ * @deprecated use mw.loader.getVersion() instead
+ */
+ this.version = function() {
+ return mw.loader.getVersion.apply( mw.loader, arguments );
+ };
+
+ /**
+ * Gets the state of a module
+ *
+ * @param module string name of module to get state for
+ */
+ this.getState = function( module ) {
+ if ( module in registry && 'state' in registry[module] ) {
+ return registry[module].state;
+ }
+ return null;
+ };
+
+ /**
+ * Get names of all registered modules.
+ *
+ * @return {Array}
+ */
+ this.getModuleNames = function() {
+ var names = $.map( registry, function( i, key ) {
+ return key;
+ } );
+ return names;
+ };
+
+ /* Cache document ready status */
+
+ $(document).ready( function() { ready = true; } );
+ } )();
+
+ /** HTML construction helper functions */
+ this.html = new ( function () {
+ var escapeCallback = function( s ) {
+ switch ( s ) {
+ case "'":
+ return ''';
+ case '"':
+ return '"';
+ case '<':
+ return '<';
+ case '>':
+ return '>';
+ case '&':
+ return '&';
+ }
+ };
+
+ /**
+ * Escape a string for HTML. Converts special characters to HTML entities.
+ * @param s The string to escape
+ */
+ this.escape = function( s ) {
+ return s.replace( /['"<>&]/g, escapeCallback );
+ };
+
+ /**
+ * Wrapper object for raw HTML passed to mw.html.element().
+ */
+ this.Raw = function( value ) {
+ this.value = value;
+ };
+
+ /**
+ * Wrapper object for CDATA element contents passed to mw.html.element()
+ */
+ this.Cdata = function( value ) {
+ this.value = value;
+ };
+
+ /**
+ * Create an HTML element string, with safe escaping.
+ *
+ * @param name The tag name.
+ * @param attrs An object with members mapping element names to values
+ * @param contents The contents of the element. May be either:
+ * - string: The string is escaped.
+ * - null or undefined: The short closing form is used, e.g. <br/>.
+ * - this.Raw: The value attribute is included without escaping.
+ * - this.Cdata: The value attribute is included, and an exception is
+ * thrown if it contains an illegal ETAGO delimiter.
+ * See http://www.w3.org/TR/1999/REC-html401-19991224/appendix/notes.html#h-B.3.2
+ *
+ * Example:
+ * var h = mw.html;
+ * return h.element( 'div', {},
+ * new h.Raw( h.element( 'img', {src: '<'} ) ) );
+ * Returns <div><img src="<"/></div>
+ */
+ this.element = function( name, attrs, contents ) {
+ var v, s = '<' + name;
+ for ( var attrName in attrs ) {
+ v = attrs[attrName];
+ // Convert name=true, to name=name
+ if ( v === true ) {
+ v = attrName;
+ // Skip name=false
+ } else if ( v === false ) {
+ continue;
+ }
+ s += ' ' + attrName + '="' + this.escape( '' + v ) + '"';
+ }
+ if ( contents === undefined || contents === null ) {
+ // Self close tag
+ s += '/>';
+ return s;
+ }
+ // Regular open tag
+ s += '>';
+ switch ( typeof contents ) {
+ case 'string':
+ // Escaped
+ s += this.escape( contents );
+ break;
+ case 'number':
+ case 'boolean':
+ // Convert to string
+ s += '' + contents;
+ break;
+ default:
+ if ( contents instanceof this.Raw ) {
+ // Raw HTML inclusion
+ s += contents.value;
+ } else if ( contents instanceof this.Cdata ) {
+ // CDATA
+ if ( /<\/[a-zA-z]/.test( contents.value ) ) {
+ throw new Error( 'mw.html.element: Illegal end tag found in CDATA' );
+ }
+ s += contents.value;
+ } else {
+ throw new Error( 'mw.html.element: Invalid type of contents' );
+ }
+ }
+ s += '</' + name + '>';
+ return s;
+ };
+ } )();
+
+ /* Extension points */
+
+ this.legacy = {};
+
+} )( jQuery );
+
+// Alias $j to jQuery for backwards compatibility
+window.$j = jQuery;
+
+// Auto-register from pre-loaded startup scripts
+if ( typeof startUp !== 'undefined' && jQuery.isFunction( startUp ) ) {
+ startUp();
+ delete startUp;
+}