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ميدياويكي:Gadget-SettingsManager.js
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/**
* [[:commons:MediaWiki:Gadget-SettingsManager.js]]
* Managing user preferences of scripts
* Managing gadgets and gadget preferences
*
* Use it for good, not for evil.
*
* @author Rillke, 2012
* @license GPL v.3
* <nowiki>
*/
// List the global variables for jsHint-Validation.
// Scheme: globalVariable:allowOverwriting[, globalVariable:allowOverwriting][, globalVariable:allowOverwriting]
/*global jQuery:false, mediaWiki:false*/
// Set jsHint-options.
/*jshint forin:true, noarg:true, noempty:true, eqeqeq:true, bitwise:true, strict:true, undef:true, curly:false, browser:true*/
( function ( $, mw ) {
"use strict";
/**
* Refresh edit token
*
* @example
* refreshToken( function() { doGoodStuff.retry(); } );
*
* @param cb {Function} Callback function. The first argument supplied is whether the operation succeeded.
* @context {closure} private function
* @return {Object} a jQuery deferred-object-queue
*/
var refreshToken = function(cb) {
var mwa = new mw.Api(),
apiDef = mwa.get( {
action: 'query',
meta: 'tokens',
type: 'csrf'
} );
apiDef.done(function(result) {
if (!result.query || !result.query.tokens) return cb( false, 'wrong-response' );
mw.user.tokens.set( 'csrfToken', result.query.tokens.csrftoken );
cb( true );
});
apiDef.fail(function(code, result) {
if (!result.query || !result.query.tokens) return cb( false, code );
});
return apiDef;
};
var firstItem = function(o) {
for (var i in o) {
if (o.hasOwnProperty( i )) {
return o[i];
}
}
};
var valByString = function(identifier) {
var arr = identifier.split( '.' ),
lenArr = arr.length,
i,
elemArr,
objCurrent = window;
for (i = 0; i < lenArr; i++) {
elemArr = arr[i];
objCurrent = objCurrent[elemArr];
}
return objCurrent;
};
var mwPrefPrefix = 'userjs-sm-';
var sm = {
version: '0.1.0.1',
errorPrefix: "SettingsWizard encountered a problem. We regret the inconvenience. ",
/**
* Constructor-method. Returns an option-object you should perform the actions on.
*
* @example
* var opt = mw.libs.settingsManager.option( { optionName: 'CatALotOptions', value: { watchCopy: false, watchRemove: false } } );
* // Save the options we've set before and make the script triggering events on the document, you can listen to
* opt.save( $(document), 'CatALotSaveProgress' );
* // or, use the deferred-object returned:
* opt.save().done(function(msg, status, jsFile) {
* alert( msg );
* }).status(function(msg, status, jsFile) {
* console.log( 'settings progress>' + msg );
* });
*
* @param specsIn {Object} specifications passed in. List of defaults (cf. specs) follows.
* @context {mw.libs.settingsManager}
* @return {Object} option-object you can use for performing actions on.
*/
option: function(specsIn) {
// List of defaults:
var specs = {
// The global name the option will be saved under
// This can be also something like "mw.settingsOfToolX"
optionName: '',
// The position where to save them. By default options are
// saved at the user's common.js or <skin>.js (e.g. vector.js)
// specify other locations like "settingsOfToolX" --> "User:Example/prefs/settingsOfToolX.js"
saveAt: false,
// By default the option is not enclosed in a comment-block
// Comment-blocks are recommended for larger configurations
// specifies the signature that will be used for the enclosing comments
// blockSettingsOfToolX --> //blockSettingsOfToolX///////////////////////
// (ignored when saveAt is set)
encloseSignature: false,
// Specify additional block comments added below the signature
// Should be something that explains what the following JSON does or is good for
// Recommended line-length for consistent alignment: 48 chars
encloseBlock: false,
// If no own location for saving the option is used (options that must be
// available while loading the script should not be saved to a separate file while
// complex options should), if the RegExp will have a match on either the common.js
// or the <skin>.js, and this option is not saved yet to another .js, the option
// will be saved to this js-file. In case the option is not saved yet and there is
// no RegExp supplied or it did not match, the option will be saved to the larger
// JavaScript
triggerSaveAt: false,
// Should the new content be insered in front of the match by triggerSaveAt
// If none of the following options is specified, the new content
// will be appended to the script
insertBeforeTrigger: false,
insertAfterTrigger: false,
replaceTrigger: false,
// Finally the option's value. Objects are possible. They will be automatically
// transformed into a JSON-string
value: undefined,
// Edit summary to use while saving the JavaScript
editSummary: ""
};
if (!specsIn) throw new Error(sm.errorPrefix + "Data to save or retrieve was not supplied by the script using SettingsWizard.");
if (!specsIn.optionName && !specsIn.saveAt) throw new Error(sm.errorPrefix + "The options\'s name was not supplied by the script using SettingsWizard.");
$.extend( true, specs, specsIn );
// Prepare variables we need later
var nsUser = mw.config.get('wgFormattedNamespaces')[2],
skin = mw.config.get('skin'),
user = mw.config.get('wgUserName'),
skinJS = [nsUser, ':', user, '/', skin, '.js'].join(''),
commonJS = [nsUser, ':', user, '/','common', '.js'].join('');
// Event-handler system
var $el, evt, jsFiles, process, $progress = new $.Deferred(), customJS;
var triggerEvt = function(any) {
return (evt && $el && $el instanceof jQuery && $el.triggerHandler( evt, Array.prototype.slice.call( arguments, 0 ) ));
};
process = {
updateVars: function() {
// Reset variables that could be polluted
jsFiles = [];
$progress = new $.Deferred();
customJS = [nsUser, ':', user, '/prefs/', specs.saveAt, '.js'].join('');
},
start: function() {
this.updateVars();
// Subscribe to any event: We want to know everything :-)
$progress.then( triggerEvt, triggerEvt, triggerEvt );
// Always async
setTimeout( $.proxy( this.getScripts, this ), 1 );
return $progress;
},
getScripts: function() {
var i, len;
$progress.notify( "Preparing", 1 );
// First, we need something to work on/ edit token, etc. - request the JavaScript(s)
if (specs.saveAt) {
jsFiles.push( sm.script( customJS ) );
} else {
jsFiles.push( sm.script( skinJS ) );
jsFiles.push( sm.script( commonJS ) );
}
len = jsFiles.length;
for (i = 0; i < len; i++) {
var jsFile = jsFiles[i];
jsFile.fetchText( process.gotJS, process.gotJSErr );
$progress.notify( "Requesting " + jsFile.getSource(), Math.round( (i+1)*(9/len) ) + 1, jsFile );
}
return $progress;
},
gotJS: function(jsFile, r){
jsFile.gotContent = true;
var i, len = jsFiles.length, pendings = 0;
for (i = 0; i < len; i++) {
if (!jsFiles[i].gotContent) {
pendings++;
}
}
$progress.notify( "Got " + jsFile.getSource() + '. File length: ' + jsFile.get().length + ' characters.' , Math.round( (len - pendings)*(9/len) ) + 10, jsFile );
if (pendings) return;
process.process();
},
gotJSErr: function(jsFile) {
$progress.reject( "Failed. Could not retrieve " + jsFile.getSource(), -1, jsFile );
},
getStartBlock: function(sig) {
// String concat is sloooow
return '//' + sig + new Array(48 - 2 - sig.length + 1).join('/');
},
getEndBlock: function(sig) {
return new Array(48 - 2 - 3 - sig.length + 1).join('/') + sig + 'End' + '//';
},
getBlockRegExp: function(sig) {
var escSig = process.escapeRE(sig);
return new RegExp('\\n?\\n?\\/\\/' + escSig + '(?:.|\\n)*' + escSig + 'End\\/\\/', 'g');
},
escapeRE: function(string) {
string = mw.util.escapeRegExp(string);
var specials = ['t', 'n', 'v', '0', 'f'];
$.each(specials, function(i, s) {
var rx = new RegExp('\\'+s, 'g');
string = string.replace(rx, '\\'+s);
});
return string;
},
getVariableRegExp: function(varName) {
var escVar = process.escapeRE(varName);
return {
varRE: new RegExp('\\s*(?:var\\s+|window\\.)?' + escVar + '\\s*=.+', 'g'),
// Throw a warning if the last char of the line is a "+" , "{", "(" or ","
varWarnRE: new RegExp('\\s*(?:var\\s+|window\\.)?' + escVar + '\\s*=.+(?:\\n?\\s*[\\,\\+\\{\\(])\\s*\\n')
};
},
process: function() {
var JSONVal = JSON.stringify( specs.value ),
sig = specs.encloseSignature,
tsa = specs.triggerSaveAt,
opn = specs.optionName,
jsFile, i, len = jsFiles.length,
plainJSON = !opn && !!jsFile,
oldText, newText, hadMatch;
if (opn) {
// No semicolon for valid JSON!
JSONVal = 'window.' + opn + ' = ' + JSONVal + ';';
}
if (!plainJSON) JSONVal = ((specs.encloseBlock && ('\n' + specs.encloseBlock)) || '') + JSONVal;
if (sig && !plainJSON) JSONVal = process.getStartBlock( sig ) + JSONVal + '\n' + process.getEndBlock( sig );
JSONVal = '\n\n' + JSONVal;
// Fine, we've constructed everything we'll need. Now look up where to insert.
// Looking for signature
if (sig) {
var reBl = process.getBlockRegExp( sig );
for (i = 0; i < len; i++) {
jsFile = jsFiles[i];
oldText = jsFile.get();
newText = oldText.replace( reBl, JSONVal );
if (reBl.test( oldText )) {
$progress.notify( "Replacing text enclosed by signature " + jsFile.getSource(), 25, jsFile );
process.save( jsFile.set( newText ) );
hadMatch = true;
}
}
}
if (hadMatch) return;
// Looking for variable-name
if (opn) {
var vre = process.getVariableRegExp( opn ),
warnFile;
for (i = 0; i < len; i++) {
jsFile = jsFiles[i];
oldText = jsFile.get();
if (vre.varWarnRE.test(oldText)) {
// WARNING!!!
$progress.notify( "Unable to remove config from " + jsFile.getSource(), -2, jsFile );
warnFile = jsFile;
} else {
newText = oldText.replace( vre.varRE, JSONVal );
if (vre.varRE.test( oldText )) {
$progress.notify( "Replacing variable " + jsFile.getSource(), 25, jsFile );
process.save( jsFile.set( newText ) );
hadMatch = true;
}
}
// Only append in case of warning if it was not added to another file
if (warnFile && !hadMatch) {
$progress.notify( "Appending variable after warning to " + jsFile.getSource(), 25, jsFile );
process.save( warnFile.set( oldText + JSONVal ) );
hadMatch = true;
}
}
}
if (hadMatch) return;
// If it's just JSON, replace the whole thingy
if (!opn && specs.saveAt) {
jsFile = jsFiles[0];
$progress.notify( "Replacing whole content of " + jsFile.getSource(), 25, jsFile );
process.save( jsFile.set( JSONVal ) );
hadMatch = true;
}
if (hadMatch) return;
// Looking whether supplied RegExp can find something
if (tsa) {
var searchMatch,
triggerLen = 0;
for (i = 0; i < len; i++) {
jsFile = jsFiles[i];
oldText = jsFile.get();
searchMatch = oldText.search( tsa );
if (-1 !== searchMatch) {
if (specs.insertBeforeTrigger) {
$progress.notify( "Inserting before pattern in " + jsFile.getSource(), 25, jsFile );
jsFile.set( oldText.slice( 0, searchMatch ) + JSONVal + oldText.slice( searchMatch ) );
} else if (specs.insertAfterTrigger) {
triggerLen = oldText.match( tsa )[0].length;
$progress.notify( "Inserting after pattern in " + jsFile.getSource(), 25, jsFile );
jsFile.set( oldText.slice( 0, searchMatch + triggerLen ) + JSONVal + oldText.slice( searchMatch + triggerLen ) );
} else if (specs.replaceTrigger) {
$progress.notify( "Replacing pattern with new content in " + jsFile.getSource(), 25, jsFile );
jsFile.set( oldText.replace( tsa, JSONVal ) );
} else {
$progress.notify( "Found pattern, appending to " + jsFile.getSource(), 25, jsFile );
jsFile.set( oldText + '\n//<nowiki>' + JSONVal + '\n//<\/nowiki>' );
}
process.save( jsFile );
hadMatch = true;
break;
}
}
}
if (hadMatch) return;
// Finally compare file size
var biggest = { size: 0, jsFile: null };
for (i = 0; i < len; i++) {
jsFile = jsFiles[i];
oldText = jsFile.get();
var oldTextLen = oldText.length;
if (oldTextLen >= biggest.size) biggest = {
size: oldTextLen,
jsFile: jsFile
};
}
$progress.notify( "Appending to bigger file: " + biggest.jsFile.getSource(), 25, biggest.jsFile );
biggest.jsFile.set( biggest.jsFile.get() + '\n//<nowiki>' + JSONVal + '\n//<\/nowiki>' );
process.save( biggest.jsFile );
},
save: function(jsFile) {
jsFile.saving = true;
$progress.notify( "Saving " + jsFile.getSource(), 30, jsFile );
jsFile.save( process.saved, process.savedErr, "[[MediaWiki:Gadget-SettingsManager.js|SettingsManager]]: " + specs.editSummary );
},
saved: function(jsFile) {
var i, len = jsFiles.length, jsf, waitingFor = [];
jsFile.saving = false;
for (i = 0; i < len; i++) {
jsf = jsFiles[i];
if (jsf.saving) {
waitingFor.push(jsf.getSource());
}
}
$progress.notify( "Saved " + jsFile.getSource() + ". Waiting for " + (waitingFor.join(', ') || '-'), Math.round( (len - waitingFor.length)*(20/len) ) + 50, jsFile );
if (waitingFor.length) return;
$progress.resolve( "Success!", 100, jsFile );
},
savedErr: function(jsFile, code, errObj) {
$progress.reject( "Error saving " + jsFile.getSource() + ". Code is " + code + ".\n", -1, errObj );
}
};
return {
getSpecs: function() {
return specs;
},
setSpecs: function(specsIn) {
specs = specsIn;
return this;
},
// Warning: If you specified a different save-position ("saveAt")
// and also an optionName, the script has to be fetched and evaluated
// We recommend omitting setting "optionName" when using "saveAt"
fetchValue: function(cb, errCb) {
process.updateVars();
if (specs.saveAt) {
var s = sm.script( customJS );
if (specs.optionName) {
s.fetchText(function() {
s.doEval();
cb( valByString( specs.optionName ) );
}, errCb);
} else {
s.fetchJSON(function(scriptObj, JSON) {
cb( JSON );
}, errCb);
}
return this;
}
cb( valByString( specs.optionName ) );
return this;
},
getValue: function() {
return specs.value;
},
setValue: function(val) {
specs.value = val;
return this;
},
save: function($elem, event) {
// We won't check whether the value is undefined. This is your task.
$el = $elem;
evt = event;
return process.start();
},
getProgress: function() {
return $progress;
}
};
},
/**
* Constructor-method. Returns a script-object you should perform the actions on.
*
* @example
* var commonJS = mw.libs.settingsManager.script( 'User:Example/common.js' );
* commonJS.set( '// empty!' ).setSummary( 'Removing Content' ).save( function() { console.log( 'Successfully removed content from ' + commonJS.getSource() ) } )
*
* @param source {String} The name of the JavaScript file with namespace.
* @context {mw.libs.settingsManager}
* @return {Object} script-object you can use for performing actions on.
*/
script: function(source) {
var content,
page,
token,
summary = "Changing configuration using [[:commons:MediaWiki:Gadget-SettingsManager.js]]",
minor = 1,
exists,
fetch,
save;
fetch = function() {
var mwa = new mw.Api();
return mwa.get( {
action: 'query',
prop: 'info|revisions',
titles: source,
rvprop: 'timestamp|content',
meta: 'tokens',
type: 'csrf'
} );
};
save = function() {
var mwa = new mw.Api(),
edit = {
action: 'edit',
title: source,
text: 'object' === typeof content ? JSON.stringify(content) : content,
summary: summary,
watchlist: 'nochange',
recreate: 1
};
if (minor) edit.minor = 1;
if (exists) {
edit.basetimestamp = page.revisions[0].timestamp;
} else {
edit.starttimestamp = page.starttimestamp;
}
edit.token = token;
return mwa.post( edit );
};
return {
get: function() {
return content;
},
getSource: function() {
return source;
},
doEval: function() {
/*jshint evil:true */
return eval(content);
},
parseJSON: function() {
return ('string' === typeof content && content !== '') ? JSON.parse( content ) : '';
},
// Supplied callback called with a string as second argument
fetchText: function(cb, errCb) {
var pgs, pg, scriptObj = this;
fetch().done( function(result) {
pgs = result.query.pages;
page = firstItem( pgs );
token = result.query.tokens.csrftoken;
exists = !!(page.revisions && page.revisions[0]);
content = (exists && page.revisions[0]['*']) || '';
cb( scriptObj, content );
} ).fail( function( status, errObj ) {
errCb( scriptObj, status, errObj );
} );
return this;
},
// Supplied callback called with parsed JSON-data as second argument
fetchJSON: function(cb, errCb) {
this.fetchText( function(scriptObj, content) {
cb( scriptObj, scriptObj.parseJSON() );
}, function(scriptObj, status, errObj) {
errCb( scriptObj, status, errObj );
} );
return this;
},
set: function(newContent) {
content = newContent;
return this;
},
setMinor: function(newMinor) {
minor = !!newMinor;
},
setSummary: function(newSummary) {
summary = newSummary;
},
save: function(cb, errCb, newSummary, newContent, newMinor) {
var scriptObj = this;
if (newContent !== undefined) content = newContent;
if (newSummary !== undefined) summary = newSummary;
if (newMinor !== undefined) minor = !!newMinor;
save().done( function(result) {
cb( scriptObj, result );
} ).fail( function(status, errObj) {
errCb( scriptObj, status, errObj );
} );
return this;
}
};
},
/**
* Switch a user preference using Ajax!
*
* @example
* mw.libs.settingsManager.switchPref( 'myOption', 'new value' );
*
* @param prefName {String} The name of the preference.
* @param prefVal {String} The new value the preference should set to.
* @param cb {Function} Callback in case of success.
* @param cb {Function} Callback in case of an error.
* @context {mw.libs.settingsManager}
* @return {Object} a jQuery deferred-object-queue. Don't use it for error-handling - Done by this method.
*/
switchPref: function(prefName, prefVal, cb, errCb) {
var mwa = new mw.Api(),
args = arguments,
prefString = (typeof prefVal === 'object') ? JSON.stringify(prefVal) : prefVal,
apiDef = mwa.post( {
action: 'options',
token: mw.user.tokens.get('csrfToken'),
optionname: prefName,
optionvalue: prefString || 0
} );
// If we changed a preference successfully, update user.options reflecting the change
apiDef.done( function() {
mw.user.options.set( prefName, prefString );
} );
if (cb) apiDef.done( cb );
// Catch badtoken and some other common errors
apiDef.fail( function(code, result) {
switch (code) {
case 'badtoken':
refreshToken(function (gotANewToken) {
if (gotANewToken) return sm.switchPref.apply( sm, Array.prototype.slice.call( args, 0 ) );
} );
// Stop the propagation of
return false;
case 'http':
case 'ok-but-empty':
setTimeout( function() {
return sm.switchPref.apply( sm, Array.prototype.slice.call(args, 0) );
}, 2500 );
return false;
default:
return (errCb && errCb(code, result) && false);
}
} );
return apiDef;
},
/**
* Switch a gadget preference using Ajax!
*
* @example
* mw.libs.settingsManager.switchGadgetPref( 'myOption', 'new value' ).done(function() { console.log("DONE!") });
*
* @param prefName {String} The name of the preference.
* @param prefVal {String} The new value the preference should set to.
* @context {mw.libs.settingsManager}
* @return {Object} $.Deferred; a jQuery deferred-object-queue.
*/
switchGadgetPref: function(prefName, prefVal) {
var $def = $.Deferred();
sm.switchPref( mwPrefPrefix + prefName, prefVal, $.proxy( $def.resolve, $def ), $.proxy( $def.reject, $def ) );
return $def;
},
/**
* Fetch a Gadget preference from various sources!
*
* @example
* mw.libs.settingsManager.fetchGadgetSetting( 'mySetting', ['storage', 'option'] ).done(function(prefName, settingValue) { console.log("DONE!") });
*
* @param prefName {String} The name of the preference.
* @param prefSources {Array} One or more of the following values 'storage', 'cookie', 'option', 'window'. Default (if not passed):
* All in the order listed there. Note that they are processed in the order you pass them in and as soon as one is found,
* Script will return.
* IMPORTANT: The Array is changed while processing. So make a copy if you need it again before passing it.
*
* @context {mw.libs.settingsManager}
* @return {Object} $.Deferred; a jQuery deferred-object-queue.
*/
fetchGadgetSetting: function(prefName, prefSources) {
var $def = $.Deferred(), requires = [], options = {
'storage': {
requires: ['mediawiki.storage'],
fetch: function() {
var v = mw.storage.get( prefName );
return (null === v || undefined === v) ? undefined : v;
}
},
'cookie': {
requires: ['jquery.cookie'],
fetch: function() {
var v = $.cookie( prefName );
try {
v = JSON.parse( v );
} catch(invalidJSON) {}
return (null === v || undefined === v) ? undefined : v;
}
},
'option': {
requires: ['mediawiki.user', 'user.options'],
fetch: function() {
var v = mw.user.options.get( mwPrefPrefix + prefName );
try {
v = JSON.parse( v );
} catch(invalidJSON) {}
return (null === v || undefined === v) ? undefined : v;
}
},
'window': {
requires: [],
fetch: function() {
return window[prefName];
}
}
};
if (!prefSources) prefSources = [];
if (!prefSources.length) prefSources = ['storage', 'cookie', 'option', 'window'];
var _fetch = function(s) {
var so = options[s];
if (so) {
mw.loader.using( so.requires, function() {
var v = so.fetch();
if (undefined === v) {
_fetched();
} else {
$def.resolve( prefName, v );
}
} );
} else {
// Security guard: Don't load settings from unprotected pages
if (!/^(?:User\:|MediaWiki\:).+\.js$/.test( s )) _fetched();
sm.script( s ).fetchJSON( function(me, jsonData) {
if (jsonData) {
$def.resolve( prefName, jsonData );
} else {
_fetched();
}
}, $.proxy( $def.reject, $def ) );
}
},
_fetched = function() {
prefSources.shift();
if (prefSources.length) {
_fetch( prefSources[0] );
} else {
$def.resolve( prefName /* no pref found */ );
}
};
$.each( prefSources, function(i, s) {
var so = options[s];
if (so) requires = requires.concat( options[s].requires );
} );
mw.loader.load( requires );
// ensure async
setTimeout( function() {
_fetch(prefSources[0]);
}, 10 );
return $def;
},
/**
* Constructor-method. Returns an option-object you should perform the actions on.
*
* @example
* var slideshowGadget = mw.libs.settingsManager.gadget( 'Slideshow' );
* if (slideshowGadget.isEnabled()) { slideshowGadget.disable( myCallback ) }
*
* // Enable a gadget and load it:
* mw.libs.settingsManager.gadget( 'Slideshow' ).load().enable();
*
* @param gadgetName {Object} The name of the gadget. (Not the script file; without Gadget- prefix or other decoration)
* @context {mw.libs.settingsManager}
* @return {Object} gadget-object you can use for performing actions on.
*/
gadget: function(gadgetName) {
var optGadget = 'gadget-' + gadgetName,
rlGadget = 'ext.gadget.' + gadgetName;
return {
getName: function() {
return gadgetName;
},
isDefault: function() {
var opt = mw.user.options.get( optGadget );
return ('number' === typeof opt || '' === opt);
},
isEnabled: function() {
var opt = mw.user.options.get( optGadget );
return !!opt;
},
getState: function() {
return mw.loader.getState( rlGadget );
},
isLoaded: function() {
return ('ready' === this.getState());
},
load: function(cb, errCb) {
// Always async
if (this.isLoaded && cb) return setTimeout( function() {
cb( gadgetName, true );
}, 1 );
mw.loader.using( rlGadget,
cb ? function() {
cb( gadgetName );
} : undefined,
errCb ? function() {
errCb( gadgetName );
} : undefined
);
return this;
},
enable: function(cb, errCb) {
// Type wouldn't matter due to URL-encoding but we also want to update
// the user.options object
sm.switchPref( optGadget, this.isDefault() ? 1 : '1', cb, errCb );
return this;
},
disable: function(cb, errCb) {
sm.switchPref( optGadget, '', cb, errCb );
return this;
}
};
}
};
mw.libs.settingsManager = sm;
// TODO add to gadget-def
// mw.loader.load([ 'mediawiki.user', 'user.options']);
}( jQuery, mediaWiki ));
// </nowiki>