resources/src/mediawiki.special/mediawiki.special.apisandbox.js

   1 /*global OO */
   2 ( function ( $, mw, OO ) {
   3         'use strict';
   4         var ApiSandbox, Util, WidgetMethods, Validators,
   5                 $content, panel, booklet, oldhash, windowManager, fullscreenButton,
   6                 api = new mw.Api(),
   7                 bookletPages = [],
   8                 availableFormats = {},
   9                 resultPage = null,
  10                 suppressErrors = true,
  11                 updatingBooklet = false,
  12                 pages = {},
  13                 moduleInfoCache = {},
  14                 baseRequestParams;
  15
  16         WidgetMethods = {
  17                 textInputWidget: {
  18                         getApiValue: function () {
  19                                 return this.getValue();
  20                         },
  21                         setApiValue: function ( v ) {
  22                                 if ( v === undefined ) {
  23                                         v = this.paramInfo[ 'default' ];
  24                                 }
  25                                 this.setValue( v );
  26                         },
  27                         apiCheckValid: function () {
  28                                 var that = this;
  29                                 return this.isValid().done( function ( ok ) {
  30                                         ok = ok || suppressErrors;
  31                                         that.setIcon( ok ? null : 'alert' );
  32                                         that.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  33                                 } );
  34                         }
  35                 },
  36
  37                 dateTimeInputWidget: {
  38                         isValid: function () {
  39                                 var ok = !Util.apiBool( this.paramInfo.required ) || this.getApiValue() !== '';
  40                                 return $.Deferred().resolve( ok ).promise();
  41                         }
  42                 },
  43
  44                 tokenWidget: {
  45                         alertTokenError: function ( code, error ) {
  46                                 windowManager.openWindow( 'errorAlert', {
  47                                         title: mw.message(
  48                                                 'apisandbox-results-fixtoken-fail', this.paramInfo.tokentype
  49                                         ).parse(),
  50                                         message: error,
  51                                         actions: [
  52                                                 {
  53                                                         action: 'accept',
  54                                                         label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
  55                                                         flags: 'primary'
  56                                                 }
  57                                         ]
  58                                 } );
  59                         },
  60                         fetchToken: function () {
  61                                 this.pushPending();
  62                                 return api.getToken( this.paramInfo.tokentype )
  63                                         .done( this.setApiValue.bind( this ) )
  64                                         .fail( this.alertTokenError.bind( this ) )
  65                                         .always( this.popPending.bind( this ) );
  66                         },
  67                         setApiValue: function ( v ) {
  68                                 WidgetMethods.textInputWidget.setApiValue.call( this, v );
  69                                 if ( v === '123ABC' ) {
  70                                         this.fetchToken();
  71                                 }
  72                         }
  73                 },
  74
  75                 passwordWidget: {
  76                         getApiValueForDisplay: function () {
  77                                 return '';
  78                         }
  79                 },
  80
  81                 toggleSwitchWidget: {
  82                         getApiValue: function () {
  83                                 return this.getValue() ? 1 : undefined;
  84                         },
  85                         setApiValue: function ( v ) {
  86                                 this.setValue( Util.apiBool( v ) );
  87                         },
  88                         apiCheckValid: function () {
  89                                 return $.Deferred().resolve( true ).promise();
  90                         }
  91                 },
  92
  93                 dropdownWidget: {
  94                         getApiValue: function () {
  95                                 var item = this.getMenu().getSelectedItem();
  96                                 return item === null ? undefined : item.getData();
  97                         },
  98                         setApiValue: function ( v ) {
  99                                 var menu = this.getMenu();
 100
 101                                 if ( v === undefined ) {
 102                                         v = this.paramInfo[ 'default' ];
 103                                 }
 104                                 if ( v === undefined ) {
 105                                         menu.selectItem();
 106                                 } else {
 107                                         menu.selectItemByData( String( v ) );
 108                                 }
 109                         },
 110                         apiCheckValid: function () {
 111                                 var ok = this.getApiValue() !== undefined || suppressErrors;
 112                                 this.setIcon( ok ? null : 'alert' );
 113                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 114                                 return $.Deferred().resolve( ok ).promise();
 115                         }
 116                 },
 117
 118                 capsuleWidget: {
 119                         getApiValue: function () {
 120                                 var items = this.getItemsData();
 121                                 if ( items.join( '' ).indexOf( '|' ) === -1 ) {
 122                                         return items.join( '|' );
 123                                 } else {
 124                                         return '\x1f' + items.join( '\x1f' );
 125                                 }
 126                         },
 127                         setApiValue: function ( v ) {
 128                                 if ( v === undefined || v === '' || v === '\x1f' ) {
 129                                         this.setItemsFromData( [] );
 130                                 } else {
 131                                         v = String( v );
 132                                         if ( v.indexOf( '\x1f' ) !== 0 ) {
 133                                                 this.setItemsFromData( v.split( '|' ) );
 134                                         } else {
 135                                                 this.setItemsFromData( v.substr( 1 ).split( '\x1f' ) );
 136                                         }
 137                                 }
 138                         },
 139                         apiCheckValid: function () {
 140                                 var ok = this.getApiValue() !== undefined || suppressErrors;
 141                                 this.setIcon( ok ? null : 'alert' );
 142                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 143                                 return $.Deferred().resolve( ok ).promise();
 144                         }
 145                 },
 146
 147                 optionalWidget: {
 148                         getApiValue: function () {
 149                                 return this.isDisabled() ? undefined : this.widget.getApiValue();
 150                         },
 151                         setApiValue: function ( v ) {
 152                                 this.setDisabled( v === undefined );
 153                                 this.widget.setApiValue( v );
 154                         },
 155                         apiCheckValid: function () {
 156                                 if ( this.isDisabled() ) {
 157                                         return $.Deferred().resolve( true ).promise();
 158                                 } else {
 159                                         return this.widget.apiCheckValid();
 160                                 }
 161                         }
 162                 },
 163
 164                 submoduleWidget: {
 165                         single: function () {
 166                                 var v = this.isDisabled() ? this.paramInfo[ 'default' ] : this.getApiValue();
 167                                 return v === undefined ? [] : [ { value: v, path: this.paramInfo.submodules[ v ] } ];
 168                         },
 169                         multi: function () {
 170                                 var map = this.paramInfo.submodules,
 171                                         v = this.isDisabled() ? this.paramInfo[ 'default' ] : this.getApiValue();
 172                                 return v === undefined || v === '' ? [] : $.map( String( v ).split( '|' ), function ( v ) {
 173                                         return { value: v, path: map[ v ] };
 174                                 } );
 175                         }
 176                 },
 177
 178                 uploadWidget: {
 179                         getApiValueForDisplay: function () {
 180                                 return '...';
 181                         },
 182                         getApiValue: function () {
 183                                 return this.getValue();
 184                         },
 185                         setApiValue: function () {
 186                                 // Can't, sorry.
 187                         },
 188                         apiCheckValid: function () {
 189                                 var ok = this.getValue() !== null || suppressErrors;
 190                                 this.setIcon( ok ? null : 'alert' );
 191                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 192                                 return $.Deferred().resolve( ok ).promise();
 193                         }
 194                 }
 195         };
 196
 197         Validators = {
 198                 generic: function () {
 199                         return !Util.apiBool( this.paramInfo.required ) || this.getApiValue() !== '';
 200                 }
 201         };
 202
 203         /**
 204          * @class mw.special.ApiSandbox.Utils
 205          * @private
 206          */
 207         Util = {
 208                 /**
 209                  * Fetch API module info
 210                  *
 211                  * @param {string} module Module to fetch data for
 212                  * @return {jQuery.Promise}
 213                  */
 214                 fetchModuleInfo: function ( module ) {
 215                         var apiPromise,
 216                                 deferred = $.Deferred();
 217
 218                         if ( moduleInfoCache.hasOwnProperty( module ) ) {
 219                                 return deferred
 220                                         .resolve( moduleInfoCache[ module ] )
 221                                         .promise( { abort: function () {} } );
 222                         } else {
 223                                 apiPromise = api.post( {
 224                                         action: 'paraminfo',
 225                                         modules: module,
 226                                         helpformat: 'html',
 227                                         uselang: mw.config.get( 'wgUserLanguage' )
 228                                 } ).done( function ( data ) {
 229                                         var info;
 230
 231                                         if ( data.warnings && data.warnings.paraminfo ) {
 232                                                 deferred.reject( '???', data.warnings.paraminfo[ '*' ] );
 233                                                 return;
 234                                         }
 235
 236                                         info = data.paraminfo.modules;
 237                                         if ( !info || info.length !== 1 || info[ 0 ].path !== module ) {
 238                                                 deferred.reject( '???', 'No module data returned' );
 239                                                 return;
 240                                         }
 241
 242                                         moduleInfoCache[ module ] = info[ 0 ];
 243                                         deferred.resolve( info[ 0 ] );
 244                                 } ).fail( function ( code, details ) {
 245                                         if ( code === 'http' ) {
 246                                                 details = 'HTTP error: ' + details.exception;
 247                                         } else if ( details.error ) {
 248                                                 details = details.error.info;
 249                                         }
 250                                         deferred.reject( code, details );
 251                                 } );
 252                                 return deferred
 253                                         .promise( { abort: apiPromise.abort } );
 254                         }
 255                 },
 256
 257                 /**
 258                  * Mark all currently-in-use tokens as bad
 259                  */
 260                 markTokensBad: function () {
 261                         var page, subpages, i,
 262                                 checkPages = [ pages.main ];
 263
 264                         while ( checkPages.length ) {
 265                                 page = checkPages.shift();
 266
 267                                 if ( page.tokenWidget ) {
 268                                         api.badToken( page.tokenWidget.paramInfo.tokentype );
 269                                 }
 270
 271                                 subpages = page.getSubpages();
 272                                 for ( i = 0; i < subpages.length; i++ ) {
 273                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
 274                                                 checkPages.push( pages[ subpages[ i ].key ] );
 275                                         }
 276                                 }
 277                         }
 278                 },
 279
 280                 /**
 281                  * Test an API boolean
 282                  *
 283                  * @param {Mixed} value
 284                  * @return {boolean}
 285                  */
 286                 apiBool: function ( value ) {
 287                         return value !== undefined && value !== false;
 288                 },
 289
 290                 /**
 291                  * Create a widget for a parameter.
 292                  *
 293                  * @param {Object} pi Parameter info from API
 294                  * @param {Object} opts Additional options
 295                  * @return {OO.ui.Widget}
 296                  */
 297                 createWidgetForParameter: function ( pi, opts ) {
 298                         var widget, innerWidget, finalWidget, items, $button, $content, func,
 299                                 multiMode = 'none';
 300
 301                         opts = opts || {};
 302
 303                         switch ( pi.type ) {
 304                                 case 'boolean':
 305                                         widget = new OO.ui.ToggleSwitchWidget();
 306                                         widget.paramInfo = pi;
 307                                         $.extend( widget, WidgetMethods.toggleSwitchWidget );
 308                                         pi.required = true; // Avoid wrapping in the non-required widget
 309                                         break;
 310
 311                                 case 'string':
 312                                 case 'user':
 313                                         if ( pi.tokentype ) {
 314                                                 widget = new TextInputWithIndicatorWidget( {
 315                                                         input: {
 316                                                                 indicator: 'previous',
 317                                                                 indicatorTitle: mw.message( 'apisandbox-fetch-token' ).text(),
 318                                                                 required: Util.apiBool( pi.required )
 319                                                         }
 320                                                 } );
 321                                         } else if ( Util.apiBool( pi.multi ) ) {
 322                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 323                                                         allowArbitrary: true
 324                                                 } );
 325                                                 widget.paramInfo = pi;
 326                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 327                                         } else {
 328                                                 widget = new OO.ui.TextInputWidget( {
 329                                                         required: Util.apiBool( pi.required )
 330                                                 } );
 331                                         }
 332                                         if ( !Util.apiBool( pi.multi ) ) {
 333                                                 widget.paramInfo = pi;
 334                                                 $.extend( widget, WidgetMethods.textInputWidget );
 335                                                 widget.setValidation( Validators.generic );
 336                                         }
 337                                         if ( pi.tokentype ) {
 338                                                 $.extend( widget, WidgetMethods.tokenWidget );
 339                                                 widget.input.paramInfo = pi;
 340                                                 $.extend( widget.input, WidgetMethods.textInputWidget );
 341                                                 $.extend( widget.input, WidgetMethods.tokenWidget );
 342                                                 widget.on( 'indicator', widget.fetchToken, [], widget );
 343                                         }
 344                                         break;
 345
 346                                 case 'text':
 347                                         widget = new OO.ui.TextInputWidget( {
 348                                                 multiline: true,
 349                                                 required: Util.apiBool( pi.required )
 350                                         } );
 351                                         widget.paramInfo = pi;
 352                                         $.extend( widget, WidgetMethods.textInputWidget );
 353                                         widget.setValidation( Validators.generic );
 354                                         break;
 355
 356                                 case 'password':
 357                                         widget = new OO.ui.TextInputWidget( {
 358                                                 type: 'password',
 359                                                 required: Util.apiBool( pi.required )
 360                                         } );
 361                                         widget.paramInfo = pi;
 362                                         $.extend( widget, WidgetMethods.textInputWidget );
 363                                         $.extend( widget, WidgetMethods.passwordWidget );
 364                                         widget.setValidation( Validators.generic );
 365                                         multiMode = 'enter';
 366                                         break;
 367
 368                                 case 'integer':
 369                                         widget = new OO.ui.NumberInputWidget( {
 370                                                 required: Util.apiBool( pi.required ),
 371                                                 isInteger: true
 372                                         } );
 373                                         widget.setIcon = widget.input.setIcon.bind( widget.input );
 374                                         widget.setIconTitle = widget.input.setIconTitle.bind( widget.input );
 375                                         widget.isValid = widget.input.isValid.bind( widget.input );
 376                                         widget.paramInfo = pi;
 377                                         $.extend( widget, WidgetMethods.textInputWidget );
 378                                         if ( Util.apiBool( pi.enforcerange ) ) {
 379                                                 widget.setRange( pi.min || -Infinity, pi.max || Infinity );
 380                                         }
 381                                         multiMode = 'enter';
 382                                         break;
 383
 384                                 case 'limit':
 385                                         widget = new OO.ui.NumberInputWidget( {
 386                                                 required: Util.apiBool( pi.required ),
 387                                                 isInteger: true
 388                                         } );
 389                                         widget.setIcon = widget.input.setIcon.bind( widget.input );
 390                                         widget.setIconTitle = widget.input.setIconTitle.bind( widget.input );
 391                                         widget.isValid = widget.input.isValid.bind( widget.input );
 392                                         widget.input.setValidation( function ( value ) {
 393                                                 return value === 'max' || widget.validateNumber( value );
 394                                         } );
 395                                         widget.paramInfo = pi;
 396                                         $.extend( widget, WidgetMethods.textInputWidget );
 397                                         widget.setRange( pi.min || 0, mw.config.get( 'apihighlimits' ) ? pi.highmax : pi.max );
 398                                         multiMode = 'enter';
 399                                         break;
 400
 401                                 case 'timestamp':
 402                                         widget = new mw.widgets.datetime.DateTimeInputWidget( {
 403                                                 formatter: {
 404                                                         format: '${year|0}-${month|0}-${day|0}T${hour|0}:${minute|0}:${second|0}${zone|short}'
 405                                                 },
 406                                                 required: Util.apiBool( pi.required ),
 407                                                 clearable: false
 408                                         } );
 409                                         widget.paramInfo = pi;
 410                                         $.extend( widget, WidgetMethods.textInputWidget );
 411                                         $.extend( widget, WidgetMethods.dateTimeInputWidget );
 412                                         multiMode = 'indicator';
 413                                         break;
 414
 415                                 case 'upload':
 416                                         widget = new OO.ui.SelectFileWidget();
 417                                         widget.paramInfo = pi;
 418                                         $.extend( widget, WidgetMethods.uploadWidget );
 419                                         break;
 420
 421                                 case 'namespace':
 422                                         items = $.map( mw.config.get( 'wgFormattedNamespaces' ), function ( name, ns ) {
 423                                                 if ( ns === '0' ) {
 424                                                         name = mw.message( 'blanknamespace' ).text();
 425                                                 }
 426                                                 return new OO.ui.MenuOptionWidget( { data: ns, label: name } );
 427                                         } ).sort( function ( a, b ) {
 428                                                 return a.data - b.data;
 429                                         } );
 430                                         if ( Util.apiBool( pi.multi ) ) {
 431                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 432                                                         menu: { items: items }
 433                                                 } );
 434                                                 widget.paramInfo = pi;
 435                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 436                                         } else {
 437                                                 widget = new OO.ui.DropdownWidget( {
 438                                                         menu: { items: items }
 439                                                 } );
 440                                                 widget.paramInfo = pi;
 441                                                 $.extend( widget, WidgetMethods.dropdownWidget );
 442                                         }
 443                                         break;
 444
 445                                 default:
 446                                         if ( !$.isArray( pi.type ) ) {
 447                                                 throw new Error( 'Unknown parameter type ' + pi.type );
 448                                         }
 449
 450                                         items = $.map( pi.type, function ( v ) {
 451                                                 return new OO.ui.MenuOptionWidget( { data: String( v ), label: String( v ) } );
 452                                         } );
 453                                         if ( Util.apiBool( pi.multi ) ) {
 454                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 455                                                         menu: { items: items }
 456                                                 } );
 457                                                 widget.paramInfo = pi;
 458                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 459                                                 if ( Util.apiBool( pi.submodules ) ) {
 460                                                         widget.getSubmodules = WidgetMethods.submoduleWidget.multi;
 461                                                         widget.on( 'change', ApiSandbox.updateUI );
 462                                                 }
 463                                         } else {
 464                                                 widget = new OO.ui.DropdownWidget( {
 465                                                         menu: { items: items }
 466                                                 } );
 467                                                 widget.paramInfo = pi;
 468                                                 $.extend( widget, WidgetMethods.dropdownWidget );
 469                                                 if ( Util.apiBool( pi.submodules ) ) {
 470                                                         widget.getSubmodules = WidgetMethods.submoduleWidget.single;
 471                                                         widget.getMenu().on( 'choose', ApiSandbox.updateUI );
 472                                                 }
 473                                         }
 474
 475                                         break;
 476                         }
 477
 478                         if ( Util.apiBool( pi.multi ) && multiMode !== 'none' ) {
 479                                 innerWidget = widget;
 480                                 switch ( multiMode ) {
 481                                         case 'enter':
 482                                                 $content = innerWidget.$element;
 483                                                 break;
 484
 485                                         case 'indicator':
 486                                                 $button = innerWidget.$indicator;
 487                                                 $button.css( 'cursor', 'pointer' );
 488                                                 $button.attr( 'tabindex', 0 );
 489                                                 $button.parent().append( $button );
 490                                                 innerWidget.setIndicator( 'next' );
 491                                                 $content = innerWidget.$element;
 492                                                 break;
 493
 494                                         default:
 495                                                 throw new Error( 'Unknown multiMode "' + multiMode + '"' );
 496                                 }
 497
 498                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 499                                         allowArbitrary: true,
 500                                         popup: {
 501                                                 classes: [ 'mw-apisandbox-popup' ],
 502                                                 $content: $content
 503                                         }
 504                                 } );
 505                                 widget.paramInfo = pi;
 506                                 $.extend( widget, WidgetMethods.capsuleWidget );
 507
 508                                 func = function () {
 509                                         if ( !innerWidget.isDisabled() ) {
 510                                                 innerWidget.apiCheckValid().done( function ( ok ) {
 511                                                         if ( ok ) {
 512                                                                 widget.addItemsFromData( [ innerWidget.getApiValue() ] );
 513                                                                 innerWidget.setApiValue( undefined );
 514                                                         }
 515                                                 } );
 516                                                 return false;
 517                                         }
 518                                 };
 519                                 switch ( multiMode ) {
 520                                         case 'enter':
 521                                                 innerWidget.connect( null, { enter: func } );
 522                                                 break;
 523
 524                                         case 'indicator':
 525                                                 $button.on( {
 526                                                         click: func,
 527                                                         keypress: function ( e ) {
 528                                                                 if ( e.which === OO.ui.Keys.SPACE || e.which === OO.ui.Keys.ENTER ) {
 529                                                                         func();
 530                                                                 }
 531                                                         }
 532                                                 } );
 533                                                 break;
 534                                 }
 535                         }
 536
 537                         if ( Util.apiBool( pi.required ) || opts.nooptional ) {
 538                                 finalWidget = widget;
 539                         } else {
 540                                 finalWidget = new OptionalWidget( widget );
 541                                 finalWidget.paramInfo = pi;
 542                                 $.extend( finalWidget, WidgetMethods.optionalWidget );
 543                                 if ( widget.getSubmodules ) {
 544                                         finalWidget.getSubmodules = widget.getSubmodules.bind( widget );
 545                                         finalWidget.on( 'disable', function () { setTimeout( ApiSandbox.updateUI ); } );
 546                                 }
 547                                 finalWidget.setDisabled( true );
 548                         }
 549
 550                         widget.setApiValue( pi[ 'default' ] );
 551
 552                         return finalWidget;
 553                 },
 554
 555                 /**
 556                  * Parse an HTML string, adding target="_blank" to any links
 557                  *
 558                  * @param {string} html HTML to parse
 559                  * @return {jQuery}
 560                  */
 561                 parseHTML: function ( html ) {
 562                         var $ret = $( $.parseHTML( html ) );
 563                         $ret.filter( 'a' ).add( $ret.find( 'a' ) )
 564                                 .filter( '[href]:not([target])' )
 565                                 .attr( 'target', '_blank' );
 566                         return $ret;
 567                 }
 568         };
 569
 570         /**
 571         * Interface to ApiSandbox UI
 572         *
 573         * @class mw.special.ApiSandbox
 574         */
 575         ApiSandbox = {
 576                 /**
 577                  * Initialize the UI
 578                  *
 579                  * Automatically called on $.ready()
 580                  */
 581                 init: function () {
 582                         var $toolbar;
 583
 584                         ApiSandbox.isFullscreen = false;
 585
 586                         $content = $( '#mw-apisandbox' );
 587
 588                         windowManager = new OO.ui.WindowManager();
 589                         $( 'body' ).append( windowManager.$element );
 590                         windowManager.addWindows( {
 591                                 errorAlert: new OO.ui.MessageDialog()
 592                         } );
 593
 594                         fullscreenButton = new OO.ui.ButtonWidget( {
 595                                 label: mw.message( 'apisandbox-fullscreen' ).text(),
 596                                 title: mw.message( 'apisandbox-fullscreen-tooltip' ).text()
 597                         } ).on( 'click', ApiSandbox.toggleFullscreen );
 598
 599                         $toolbar = $( '<div>' )
 600                                 .addClass( 'mw-apisandbox-toolbar' )
 601                                 .append(
 602                                         fullscreenButton.$element,
 603                                         new OO.ui.ButtonWidget( {
 604                                                 label: mw.message( 'apisandbox-submit' ).text(),
 605                                                 flags: [ 'primary', 'progressive' ]
 606                                         } ).on( 'click', ApiSandbox.sendRequest ).$element,
 607                                         new OO.ui.ButtonWidget( {
 608                                                 label: mw.message( 'apisandbox-reset' ).text(),
 609                                                 flags: 'destructive'
 610                                         } ).on( 'click', ApiSandbox.resetUI ).$element
 611                                 );
 612
 613                         booklet = new OO.ui.BookletLayout( {
 614                                 outlined: true,
 615                                 autoFocus: false
 616                         } );
 617
 618                         panel = new OO.ui.PanelLayout( {
 619                                 classes: [ 'mw-apisandbox-container' ],
 620                                 content: [ booklet ],
 621                                 expanded: false,
 622                                 framed: true
 623                         } );
 624
 625                         pages.main = new ApiSandbox.PageLayout( { key: 'main', path: 'main' } );
 626
 627                         // Parse the current hash string
 628                         if ( !ApiSandbox.loadFromHash() ) {
 629                                 ApiSandbox.updateUI();
 630                         }
 631
 632                         // If the hashchange event exists, use it. Otherwise, fake it.
 633                         // And, of course, IE has to be dumb.
 634                         if ( 'onhashchange' in window &&
 635                                 ( document.documentMode === undefined || document.documentMode >= 8 )
 636                         ) {
 637                                 $( window ).on( 'hashchange', ApiSandbox.loadFromHash );
 638                         } else {
 639                                 setInterval( function () {
 640                                         if ( oldhash !== location.hash ) {
 641                                                 ApiSandbox.loadFromHash();
 642                                         }
 643                                 }, 1000 );
 644                         }
 645
 646                         $content
 647                                 .empty()
 648                                 .append( $( '<p>' ).append( mw.message( 'apisandbox-intro' ).parse() ) )
 649                                 .append(
 650                                         $( '<div>', { id: 'mw-apisandbox-ui' } )
 651                                                 .append( $toolbar )
 652                                                 .append( panel.$element )
 653                                 );
 654
 655                         $( window ).on( 'resize', ApiSandbox.resizePanel );
 656
 657                         ApiSandbox.resizePanel();
 658                 },
 659
 660                 /**
 661                  * Toggle "fullscreen" mode
 662                  */
 663                 toggleFullscreen: function () {
 664                         var $body = $( document.body ),
 665                                 $ui = $( '#mw-apisandbox-ui' );
 666
 667                         ApiSandbox.isFullscreen = !ApiSandbox.isFullscreen;
 668
 669                         $body.toggleClass( 'mw-apisandbox-fullscreen', ApiSandbox.isFullscreen );
 670                         $ui.toggleClass( 'mw-body-content', ApiSandbox.isFullscreen );
 671                         if ( ApiSandbox.isFullscreen ) {
 672                                 fullscreenButton.setLabel( mw.message( 'apisandbox-unfullscreen' ).text() );
 673                                 fullscreenButton.setTitle( mw.message( 'apisandbox-unfullscreen-tooltip' ).text() );
 674                                 $body.append( $ui );
 675                         } else {
 676                                 fullscreenButton.setLabel( mw.message( 'apisandbox-fullscreen' ).text() );
 677                                 fullscreenButton.setTitle( mw.message( 'apisandbox-fullscreen-tooltip' ).text() );
 678                                 $content.append( $ui );
 679                         }
 680                         ApiSandbox.resizePanel();
 681                 },
 682
 683                 /**
 684                  * Set the height of the panel based on the current viewport.
 685                  */
 686                 resizePanel: function () {
 687                         var height = $( window ).height(),
 688                                 contentTop = $content.offset().top;
 689
 690                         if ( ApiSandbox.isFullscreen ) {
 691                                 height -= panel.$element.offset().top - $( '#mw-apisandbox-ui' ).offset().top;
 692                                 panel.$element.height( height - 1 );
 693                         } else {
 694                                 // Subtract the height of the intro text
 695                                 height -= panel.$element.offset().top - contentTop;
 696
 697                                 panel.$element.height( height - 10 );
 698                                 $( window ).scrollTop( contentTop - 5 );
 699                         }
 700                 },
 701
 702                 /**
 703                  * Update the current query when the page hash changes
 704                  */
 705                 loadFromHash: function () {
 706                         var params, m, re,
 707                                 hash = location.hash;
 708
 709                         if ( oldhash === hash ) {
 710                                 return false;
 711                         }
 712                         oldhash = hash;
 713                         if ( hash === '' ) {
 714                                 return false;
 715                         }
 716
 717                         // I'm surprised this doesn't seem to exist in jQuery or mw.util.
 718                         params = {};
 719                         hash = hash.replace( /\+/g, '%20' );
 720                         re = /([^&=#]+)=?([^&#]*)/g;
 721                         while ( ( m = re.exec( hash ) ) ) {
 722                                 params[ decodeURIComponent( m[ 1 ] ) ] = decodeURIComponent( m[ 2 ] );
 723                         }
 724
 725                         ApiSandbox.updateUI( params );
 726                         return true;
 727                 },
 728
 729                 /**
 730                  * Update the pages in the booklet
 731                  *
 732                  * @param {Object} [params] Optional query parameters to load
 733                  */
 734                 updateUI: function ( params ) {
 735                         var i, page, subpages, j, removePages,
 736                                 addPages = [];
 737
 738                         if ( !$.isPlainObject( params ) ) {
 739                                 params = undefined;
 740                         }
 741
 742                         if ( updatingBooklet ) {
 743                                 return;
 744                         }
 745                         updatingBooklet = true;
 746                         try {
 747                                 if ( params !== undefined ) {
 748                                         pages.main.loadQueryParams( params );
 749                                 }
 750                                 addPages.push( pages.main );
 751                                 if ( resultPage !== null ) {
 752                                         addPages.push( resultPage );
 753                                 }
 754                                 pages.main.apiCheckValid();
 755
 756                                 i = 0;
 757                                 while ( addPages.length ) {
 758                                         page = addPages.shift();
 759                                         if ( bookletPages[ i ] !== page ) {
 760                                                 for ( j = i; j < bookletPages.length; j++ ) {
 761                                                         if ( bookletPages[ j ].getName() === page.getName() ) {
 762                                                                 bookletPages.splice( j, 1 );
 763                                                         }
 764                                                 }
 765                                                 bookletPages.splice( i, 0, page );
 766                                                 booklet.addPages( [ page ], i );
 767                                         }
 768                                         i++;
 769
 770                                         if ( page.getSubpages ) {
 771                                                 subpages = page.getSubpages();
 772                                                 for ( j = 0; j < subpages.length; j++ ) {
 773                                                         if ( !pages.hasOwnProperty( subpages[ j ].key ) ) {
 774                                                                 subpages[ j ].indentLevel = page.indentLevel + 1;
 775                                                                 pages[ subpages[ j ].key ] = new ApiSandbox.PageLayout( subpages[ j ] );
 776                                                         }
 777                                                         if ( params !== undefined ) {
 778                                                                 pages[ subpages[ j ].key ].loadQueryParams( params );
 779                                                         }
 780                                                         addPages.splice( j, 0, pages[ subpages[ j ].key ] );
 781                                                         pages[ subpages[ j ].key ].apiCheckValid();
 782                                                 }
 783                                         }
 784                                 }
 785
 786                                 if ( bookletPages.length > i ) {
 787                                         removePages = bookletPages.splice( i, bookletPages.length - i );
 788                                         booklet.removePages( removePages );
 789                                 }
 790
 791                                 if ( !booklet.getCurrentPageName() ) {
 792                                         booklet.selectFirstSelectablePage();
 793                                 }
 794                         } finally {
 795                                 updatingBooklet = false;
 796                         }
 797                 },
 798
 799                 /**
 800                  * Reset button handler
 801                  */
 802                 resetUI: function () {
 803                         suppressErrors = true;
 804                         pages = {
 805                                 main: new ApiSandbox.PageLayout( { key: 'main', path: 'main' } )
 806                         };
 807                         resultPage = null;
 808                         ApiSandbox.updateUI();
 809                 },
 810
 811                 /**
 812                  * Submit button handler
 813                  *
 814                  * @param {Object} [params] Use this set of params instead of those in the form fields.
 815                  *   The form fields will be updated to match.
 816                  */
 817                 sendRequest: function ( params ) {
 818                         var page, subpages, i, query, $result, $focus,
 819                                 progress, $progressText, progressLoading,
 820                                 deferreds = [],
 821                                 paramsAreForced = !!params,
 822                                 displayParams = {},
 823                                 checkPages = [ pages.main ];
 824
 825                         // Blur any focused widget before submit, because
 826                         // OO.ui.ButtonWidget doesn't take focus itself (T128054)
 827                         $focus = $( '#mw-apisandbox-ui' ).find( document.activeElement );
 828                         if ( $focus.length ) {
 829                                 $focus[ 0 ].blur();
 830                         }
 831
 832                         suppressErrors = false;
 833
 834                         // save widget state in params (or load from it if we are forced)
 835                         if ( paramsAreForced ) {
 836                                 ApiSandbox.updateUI( params );
 837                         }
 838                         params = {};
 839                         while ( checkPages.length ) {
 840                                 page = checkPages.shift();
 841                                 deferreds.push( page.apiCheckValid() );
 842                                 page.getQueryParams( params, displayParams );
 843                                 subpages = page.getSubpages();
 844                                 for ( i = 0; i < subpages.length; i++ ) {
 845                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
 846                                                 checkPages.push( pages[ subpages[ i ].key ] );
 847                                         }
 848                                 }
 849                         }
 850
 851                         if ( !paramsAreForced ) {
 852                                 // forced params means we are continuing a query; the base query should be preserved
 853                                 baseRequestParams = $.extend( {}, params );
 854                         }
 855
 856                         $.when.apply( $, deferreds ).done( function () {
 857                                 if ( $.inArray( false, arguments ) !== -1 ) {
 858                                         windowManager.openWindow( 'errorAlert', {
 859                                                 title: mw.message( 'apisandbox-submit-invalid-fields-title' ).parse(),
 860                                                 message: mw.message( 'apisandbox-submit-invalid-fields-message' ).parse(),
 861                                                 actions: [
 862                                                         {
 863                                                                 action: 'accept',
 864                                                                 label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
 865                                                                 flags: 'primary'
 866                                                         }
 867                                                 ]
 868                                         } );
 869                                         return;
 870                                 }
 871
 872                                 query = $.param( displayParams );
 873
 874                                 // Force a 'fm' format with wrappedhtml=1, if available
 875                                 if ( params.format !== undefined ) {
 876                                         if ( availableFormats.hasOwnProperty( params.format + 'fm' ) ) {
 877                                                 params.format = params.format + 'fm';
 878                                         }
 879                                         if ( params.format.substr( -2 ) === 'fm' ) {
 880                                                 params.wrappedhtml = 1;
 881                                         }
 882                                 }
 883
 884                                 progressLoading = false;
 885                                 $progressText = $( '<span>' ).text( mw.message( 'apisandbox-sending-request' ).text() );
 886                                 progress = new OO.ui.ProgressBarWidget( {
 887                                         progress: false,
 888                                         $content: $progressText
 889                                 } );
 890
 891                                 $result = $( '<div>' )
 892                                         .append( progress.$element );
 893
 894                                 resultPage = page = new OO.ui.PageLayout( '|results|' );
 895                                 page.setupOutlineItem = function () {
 896                                         this.outlineItem.setLabel( mw.message( 'apisandbox-results' ).text() );
 897                                 };
 898                                 page.$element.empty()
 899                                         .append(
 900                                                 new OO.ui.FieldLayout(
 901                                                         new OO.ui.TextInputWidget( {
 902                                                                 readOnly: true,
 903                                                                 value: mw.util.wikiScript( 'api' ) + '?' + query
 904                                                         } ), {
 905                                                                 label: mw.message( 'apisandbox-request-url-label' ).parse()
 906                                                         }
 907                                                 ).$element,
 908                                                 $result
 909                                         );
 910                                 ApiSandbox.updateUI();
 911                                 booklet.setPage( '|results|' );
 912
 913                                 location.href = oldhash = '#' + query;
 914
 915                                 api.post( params, {
 916                                         contentType: 'multipart/form-data',
 917                                         dataType: 'text',
 918                                         xhr: function () {
 919                                                 var xhr = new window.XMLHttpRequest();
 920                                                 xhr.upload.addEventListener( 'progress', function ( e ) {
 921                                                         if ( !progressLoading ) {
 922                                                                 if ( e.lengthComputable ) {
 923                                                                         progress.setProgress( e.loaded * 100 / e.total );
 924                                                                 } else {
 925                                                                         progress.setProgress( false );
 926                                                                 }
 927                                                         }
 928                                                 } );
 929                                                 xhr.addEventListener( 'progress', function ( e ) {
 930                                                         if ( !progressLoading ) {
 931                                                                 progressLoading = true;
 932                                                                 $progressText.text( mw.message( 'apisandbox-loading-results' ).text() );
 933                                                         }
 934                                                         if ( e.lengthComputable ) {
 935                                                                 progress.setProgress( e.loaded * 100 / e.total );
 936                                                         } else {
 937                                                                 progress.setProgress( false );
 938                                                         }
 939                                                 } );
 940                                                 return xhr;
 941                                         }
 942                                 } )
 943                                         .then( null, function ( code, data, result, jqXHR ) {
 944                                                 if ( code !== 'http' ) {
 945                                                         // Not really an error, work around mw.Api thinking it is.
 946                                                         return $.Deferred()
 947                                                                 .resolve( result, jqXHR )
 948                                                                 .promise();
 949                                                 }
 950                                                 return this;
 951                                         } )
 952                                         .fail( function ( code, data ) {
 953                                                 var details = 'HTTP error: ' + data.exception;
 954                                                 $result.empty()
 955                                                         .append(
 956                                                                 new OO.ui.LabelWidget( {
 957                                                                         label: mw.message( 'apisandbox-results-error', details ).text(),
 958                                                                         classes: [ 'error' ]
 959                                                                 } ).$element
 960                                                         );
 961                                         } )
 962                                         .done( function ( data, jqXHR ) {
 963                                                 var m, loadTime, button, clear,
 964                                                         ct = jqXHR.getResponseHeader( 'Content-Type' );
 965
 966                                                 $result.empty();
 967                                                 if ( /^text\/mediawiki-api-prettyprint-wrapped(?:;|$)/.test( ct ) ) {
 968                                                         data = $.parseJSON( data );
 969                                                         if ( data.modules.length ) {
 970                                                                 mw.loader.load( data.modules );
 971                                                         }
 972                                                         if ( data.status && data.status !== 200 ) {
 973                                                                 $( '<div>' )
 974                                                                         .addClass( 'api-pretty-header api-pretty-status' )
 975                                                                         .append(
 976                                                                                 mw.message( 'api-format-prettyprint-status', data.status, data.statustext ).parse()
 977                                                                         )
 978                                                                         .appendTo( $result );
 979                                                         }
 980                                                         $result.append( Util.parseHTML( data.html ) );
 981                                                         loadTime = data.time;
 982                                                 } else if ( ( m = data.match( /<pre[ >][\s\S]*<\/pre>/ ) ) ) {
 983                                                         $result.append( Util.parseHTML( m[ 0 ] ) );
 984                                                         if ( ( m = data.match( /"wgBackendResponseTime":\s*(\d+)/ ) ) ) {
 985                                                                 loadTime = parseInt( m[ 1 ], 10 );
 986                                                         }
 987                                                 } else {
 988                                                         $( '<pre>' )
 989                                                                 .addClass( 'api-pretty-content' )
 990                                                                 .text( data )
 991                                                                 .appendTo( $result );
 992                                                 }
 993                                                 if ( paramsAreForced || data[ 'continue' ] ) {
 994                                                         $result.append(
 995                                                                 $( '<div>' ).append(
 996                                                                         new OO.ui.ButtonWidget( {
 997                                                                                 label: mw.message( 'apisandbox-continue' ).text()
 998                                                                         } ).on( 'click', function () {
 999                                                                                 ApiSandbox.sendRequest( $.extend( {}, baseRequestParams, data[ 'continue' ] ) );
1000                                                                         } ).setDisabled( !data[ 'continue' ] ).$element,
1001                                                                         ( clear = new OO.ui.ButtonWidget( {
1002                                                                                 label: mw.message( 'apisandbox-continue-clear' ).text()
1003                                                                         } ).on( 'click', function () {
1004                                                                                 ApiSandbox.updateUI( baseRequestParams );
1005                                                                                 clear.setDisabled( true );
1006                                                                                 booklet.setPage( '|results|' );
1007                                                                         } ).setDisabled( !paramsAreForced ) ).$element,
1008                                                                         new OO.ui.PopupButtonWidget( {
1009                                                                                 framed: false,
1010                                                                                 icon: 'info',
1011                                                                                 popup: {
1012                                                                                         $content: $( '<div>' ).append( mw.message( 'apisandbox-continue-help' ).parse() ),
1013                                                                                         padded: true
1014                                                                                 }
1015                                                                         } ).$element
1016                                                                 )
1017                                                         );
1018                                                 }
1019                                                 if ( typeof loadTime === 'number' ) {
1020                                                         $result.append(
1021                                                                 $( '<div>' ).append(
1022                                                                         new OO.ui.LabelWidget( {
1023                                                                                 label: mw.message( 'apisandbox-request-time', loadTime ).text()
1024                                                                         } ).$element
1025                                                                 )
1026                                                         );
1027                                                 }
1028
1029                                                 if ( jqXHR.getResponseHeader( 'MediaWiki-API-Error' ) === 'badtoken' ) {
1030                                                         // Flush all saved tokens in case one of them is the bad one.
1031                                                         Util.markTokensBad();
1032                                                         button = new OO.ui.ButtonWidget( {
1033                                                                 label: mw.message( 'apisandbox-results-fixtoken' ).text()
1034                                                         } );
1035                                                         button.on( 'click', ApiSandbox.fixTokenAndResend )
1036                                                                 .on( 'click', button.setDisabled, [ true ], button )
1037                                                                 .$element.appendTo( $result );
1038                                                 }
1039                                         } );
1040                         } );
1041                 },
1042
1043                 /**
1044                  * Handler for the "Correct token and resubmit" button
1045                  *
1046                  * Used on a 'badtoken' error, it re-fetches token parameters for all
1047                  * pages and then re-submits the query.
1048                  */
1049                 fixTokenAndResend: function () {
1050                         var page, subpages, i, k,
1051                                 ok = true,
1052                                 tokenWait = { dummy: true },
1053                                 checkPages = [ pages.main ],
1054                                 success = function ( k ) {
1055                                         delete tokenWait[ k ];
1056                                         if ( ok && $.isEmptyObject( tokenWait ) ) {
1057                                                 ApiSandbox.sendRequest();
1058                                         }
1059                                 },
1060                                 failure = function ( k ) {
1061                                         delete tokenWait[ k ];
1062                                         ok = false;
1063                                 };
1064
1065                         while ( checkPages.length ) {
1066                                 page = checkPages.shift();
1067
1068                                 if ( page.tokenWidget ) {
1069                                         k = page.apiModule + page.tokenWidget.paramInfo.name;
1070                                         tokenWait[ k ] = page.tokenWidget.fetchToken()
1071                                                 .done( success.bind( page.tokenWidget, k ) )
1072                                                 .fail( failure.bind( page.tokenWidget, k ) );
1073                                 }
1074
1075                                 subpages = page.getSubpages();
1076                                 for ( i = 0; i < subpages.length; i++ ) {
1077                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
1078                                                 checkPages.push( pages[ subpages[ i ].key ] );
1079                                         }
1080                                 }
1081                         }
1082
1083                         success( 'dummy', '' );
1084                 },
1085
1086                 /**
1087                  * Reset validity indicators for all widgets
1088                  */
1089                 updateValidityIndicators: function () {
1090                         var page, subpages, i,
1091                                 checkPages = [ pages.main ];
1092
1093                         while ( checkPages.length ) {
1094                                 page = checkPages.shift();
1095                                 page.apiCheckValid();
1096                                 subpages = page.getSubpages();
1097                                 for ( i = 0; i < subpages.length; i++ ) {
1098                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
1099                                                 checkPages.push( pages[ subpages[ i ].key ] );
1100                                         }
1101                                 }
1102                         }
1103                 }
1104         };
1105
1106         /**
1107          * PageLayout for API modules
1108          *
1109          * @class
1110          * @private
1111          * @extends OO.ui.PageLayout
1112          * @constructor
1113          * @param {Object} [config] Configuration options
1114          */
1115         ApiSandbox.PageLayout = function ( config ) {
1116                 config = $.extend( { prefix: '' }, config );
1117                 this.displayText = config.key;
1118                 this.apiModule = config.path;
1119                 this.prefix = config.prefix;
1120                 this.paramInfo = null;
1121                 this.apiIsValid = true;
1122                 this.loadFromQueryParams = null;
1123                 this.widgets = {};
1124                 this.tokenWidget = null;
1125                 this.indentLevel = config.indentLevel ? config.indentLevel : 0;
1126                 ApiSandbox.PageLayout[ 'super' ].call( this, config.key, config );
1127                 this.loadParamInfo();
1128         };
1129         OO.inheritClass( ApiSandbox.PageLayout, OO.ui.PageLayout );
1130         ApiSandbox.PageLayout.prototype.setupOutlineItem = function () {
1131                 this.outlineItem.setLevel( this.indentLevel );
1132                 this.outlineItem.setLabel( this.displayText );
1133                 this.outlineItem.setIcon( this.apiIsValid || suppressErrors ? null : 'alert' );
1134                 this.outlineItem.setIconTitle(
1135                         this.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
1136                 );
1137         };
1138
1139         /**
1140          * Fetch module information for this page's module, then create UI
1141          */
1142         ApiSandbox.PageLayout.prototype.loadParamInfo = function () {
1143                 var dynamicFieldset, dynamicParamNameWidget,
1144                         that = this,
1145                         removeDynamicParamWidget = function ( name, layout ) {
1146                                 dynamicFieldset.removeItems( [ layout ] );
1147                                 delete that.widgets[ name ];
1148                         },
1149                         addDynamicParamWidget = function () {
1150                                 var name, layout, widget, button;
1151
1152                                 // Check name is filled in
1153                                 name = dynamicParamNameWidget.getValue().trim();
1154                                 if ( name === '' ) {
1155                                         dynamicParamNameWidget.focus();
1156                                         return;
1157                                 }
1158
1159                                 if ( that.widgets[ name ] !== undefined ) {
1160                                         windowManager.openWindow( 'errorAlert', {
1161                                                 title: mw.message(
1162                                                         'apisandbox-dynamic-error-exists', name
1163                                                 ).parse(),
1164                                                 actions: [
1165                                                         {
1166                                                                 action: 'accept',
1167                                                                 label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
1168                                                                 flags: 'primary'
1169                                                         }
1170                                                 ]
1171                                         } );
1172                                         return;
1173                                 }
1174
1175                                 widget = Util.createWidgetForParameter( {
1176                                         name: name,
1177                                         type: 'string',
1178                                         'default': ''
1179                                 }, {
1180                                         nooptional: true
1181                                 } );
1182                                 button = new OO.ui.ButtonWidget( {
1183                                         icon: 'remove',
1184                                         flags: 'destructive'
1185                                 } );
1186                                 layout = new OO.ui.ActionFieldLayout(
1187                                         widget,
1188                                         button,
1189                                         {
1190                                                 label: name,
1191                                                 align: 'left'
1192                                         }
1193                                 );
1194                                 button.on( 'click', removeDynamicParamWidget, [ name, layout ] );
1195                                 that.widgets[ name ] = widget;
1196                                 dynamicFieldset.addItems( [ layout ], dynamicFieldset.getItems().length - 1 );
1197                                 widget.focus();
1198
1199                                 dynamicParamNameWidget.setValue( '' );
1200                         };
1201
1202                 this.$element.empty()
1203                         .append( new OO.ui.ProgressBarWidget( {
1204                                 progress: false,
1205                                 text: mw.message( 'apisandbox-loading', this.displayText ).text()
1206                         } ).$element );
1207
1208                 Util.fetchModuleInfo( this.apiModule )
1209                         .done( function ( pi ) {
1210                                 var prefix, i, j, dl, widget, $widgetLabel, widgetField, helpField, tmp, flag, count,
1211                                         items = [],
1212                                         deprecatedItems = [],
1213                                         buttons = [],
1214                                         filterFmModules = function ( v ) {
1215                                                 return v.substr( -2 ) !== 'fm' ||
1216                                                         !availableFormats.hasOwnProperty( v.substr( 0, v.length - 2 ) );
1217                                         },
1218                                         widgetLabelOnClick = function () {
1219                                                 var f = this.getField();
1220                                                 if ( $.isFunction( f.setDisabled ) ) {
1221                                                         f.setDisabled( false );
1222                                                 }
1223                                                 if ( $.isFunction( f.focus ) ) {
1224                                                         f.focus();
1225                                                 }
1226                                         },
1227                                         doNothing = function () {};
1228
1229                                 // This is something of a hack. We always want the 'format' and
1230                                 // 'action' parameters from the main module to be specified,
1231                                 // and for 'format' we also want to simplify the dropdown since
1232                                 // we always send the 'fm' variant.
1233                                 if ( that.apiModule === 'main' ) {
1234                                         for ( i = 0; i < pi.parameters.length; i++ ) {
1235                                                 if ( pi.parameters[ i ].name === 'action' ) {
1236                                                         pi.parameters[ i ].required = true;
1237                                                         delete pi.parameters[ i ][ 'default' ];
1238                                                 }
1239                                                 if ( pi.parameters[ i ].name === 'format' ) {
1240                                                         tmp = pi.parameters[ i ].type;
1241                                                         for ( j = 0; j < tmp.length; j++ ) {
1242                                                                 availableFormats[ tmp[ j ] ] = true;
1243                                                         }
1244                                                         pi.parameters[ i ].type = $.grep( tmp, filterFmModules );
1245                                                         pi.parameters[ i ][ 'default' ] = 'json';
1246                                                         pi.parameters[ i ].required = true;
1247                                                 }
1248                                         }
1249                                 }
1250
1251                                 // Hide the 'wrappedhtml' parameter on format modules
1252                                 if ( pi.group === 'format' ) {
1253                                         pi.parameters = $.grep( pi.parameters, function ( p ) {
1254                                                 return p.name !== 'wrappedhtml';
1255                                         } );
1256                                 }
1257
1258                                 that.paramInfo = pi;
1259
1260                                 items.push( new OO.ui.FieldLayout(
1261                                         new OO.ui.Widget( {} ).toggle( false ), {
1262                                                 align: 'top',
1263                                                 label: Util.parseHTML( pi.description )
1264                                         }
1265                                 ) );
1266
1267                                 if ( pi.helpurls.length ) {
1268                                         buttons.push( new OO.ui.PopupButtonWidget( {
1269                                                 label: mw.message( 'apisandbox-helpurls' ).text(),
1270                                                 icon: 'help',
1271                                                 popup: {
1272                                                         $content: $( '<ul>' ).append( $.map( pi.helpurls, function ( link ) {
1273                                                                 return $( '<li>' ).append( $( '<a>', {
1274                                                                         href: link,
1275                                                                         target: '_blank',
1276                                                                         text: link
1277                                                                 } ) );
1278                                                         } ) )
1279                                                 }
1280                                         } ) );
1281                                 }
1282
1283                                 if ( pi.examples.length ) {
1284                                         buttons.push( new OO.ui.PopupButtonWidget( {
1285                                                 label: mw.message( 'apisandbox-examples' ).text(),
1286                                                 icon: 'code',
1287                                                 popup: {
1288                                                         $content: $( '<ul>' ).append( $.map( pi.examples, function ( example ) {
1289                                                                 var a = $( '<a>', {
1290                                                                         href: '#' + example.query,
1291                                                                         html: example.description
1292                                                                 } );
1293                                                                 a.find( 'a' ).contents().unwrap(); // Can't nest links
1294                                                                 return $( '<li>' ).append( a );
1295                                                         } ) )
1296                                                 }
1297                                         } ) );
1298                                 }
1299
1300                                 if ( buttons.length ) {
1301                                         items.push( new OO.ui.FieldLayout(
1302                                                 new OO.ui.ButtonGroupWidget( {
1303                                                         items: buttons
1304                                                 } ), { align: 'top' }
1305                                         ) );
1306                                 }
1307
1308                                 if ( pi.parameters.length ) {
1309                                         prefix = that.prefix + pi.prefix;
1310                                         for ( i = 0; i < pi.parameters.length; i++ ) {
1311                                                 widget = Util.createWidgetForParameter( pi.parameters[ i ] );
1312                                                 that.widgets[ prefix + pi.parameters[ i ].name ] = widget;
1313                                                 if ( pi.parameters[ i ].tokentype ) {
1314                                                         that.tokenWidget = widget;
1315                                                 }
1316
1317                                                 dl = $( '<dl>' );
1318                                                 dl.append( $( '<dd>', {
1319                                                         addClass: 'description',
1320                                                         append: Util.parseHTML( pi.parameters[ i ].description )
1321                                                 } ) );
1322                                                 if ( pi.parameters[ i ].info && pi.parameters[ i ].info.length ) {
1323                                                         for ( j = 0; j < pi.parameters[ i ].info.length; j++ ) {
1324                                                                 dl.append( $( '<dd>', {
1325                                                                         addClass: 'info',
1326                                                                         append: Util.parseHTML( pi.parameters[ i ].info[ j ] )
1327                                                                 } ) );
1328                                                         }
1329                                                 }
1330                                                 flag = true;
1331                                                 count = 1e100;
1332                                                 switch ( pi.parameters[ i ].type ) {
1333                                                         case 'namespace':
1334                                                                 flag = false;
1335                                                                 count = mw.config.get( 'wgFormattedNamespaces' ).length;
1336                                                                 break;
1337
1338                                                         case 'limit':
1339                                                                 if ( pi.parameters[ i ].highmax !== undefined ) {
1340                                                                         dl.append( $( '<dd>', {
1341                                                                                 addClass: 'info',
1342                                                                                 append: Util.parseHTML( mw.message(
1343                                                                                         'api-help-param-limit2', pi.parameters[ i ].max, pi.parameters[ i ].highmax
1344                                                                                 ).parse() )
1345                                                                         } ) );
1346                                                                 } else {
1347                                                                         dl.append( $( '<dd>', {
1348                                                                                 addClass: 'info',
1349                                                                                 append: Util.parseHTML( mw.message(
1350                                                                                         'api-help-param-limit', pi.parameters[ i ].max
1351                                                                                 ).parse() )
1352                                                                         } ) );
1353                                                                 }
1354                                                                 break;
1355
1356                                                         case 'integer':
1357                                                                 tmp = '';
1358                                                                 if ( pi.parameters[ i ].min !== undefined ) {
1359                                                                         tmp += 'min';
1360                                                                 }
1361                                                                 if ( pi.parameters[ i ].max !== undefined ) {
1362                                                                         tmp += 'max';
1363                                                                 }
1364                                                                 if ( tmp !== '' ) {
1365                                                                         dl.append( $( '<dd>', {
1366                                                                                 addClass: 'info',
1367                                                                                 append: Util.parseHTML( mw.message(
1368                                                                                         'api-help-param-integer-' + tmp,
1369                                                                                         Util.apiBool( pi.parameters[ i ].multi ) ? 2 : 1,
1370                                                                                         pi.parameters[ i ].min, pi.parameters[ i ].max
1371                                                                                 ).parse() )
1372                                                                         } ) );
1373                                                                 }
1374                                                                 break;
1375
1376                                                         default:
1377                                                                 if ( $.isArray( pi.parameters[ i ].type ) ) {
1378                                                                         flag = false;
1379                                                                         count = pi.parameters[ i ].type.length;
1380                                                                 }
1381                                                                 break;
1382                                                 }
1383                                                 if ( Util.apiBool( pi.parameters[ i ].multi ) ) {
1384                                                         tmp = [];
1385                                                         if ( flag && !( widget instanceof OO.ui.CapsuleMultiselectWidget ) &&
1386                                                                 !(
1387                                                                         widget instanceof OptionalWidget &&
1388                                                                         widget.widget instanceof OO.ui.CapsuleMultiselectWidget
1389                                                                 )
1390                                                         ) {
1391                                                                 tmp.push( mw.message( 'api-help-param-multi-separate' ).parse() );
1392                                                         }
1393                                                         if ( count > pi.parameters[ i ].lowlimit ) {
1394                                                                 tmp.push(
1395                                                                         mw.message( 'api-help-param-multi-max',
1396                                                                                 pi.parameters[ i ].lowlimit, pi.parameters[ i ].highlimit
1397                                                                         ).parse()
1398                                                                 );
1399                                                         }
1400                                                         if ( tmp.length ) {
1401                                                                 dl.append( $( '<dd>', {
1402                                                                         addClass: 'info',
1403                                                                         append: Util.parseHTML( tmp.join( ' ' ) )
1404                                                                 } ) );
1405                                                         }
1406                                                 }
1407                                                 helpField = new OO.ui.FieldLayout(
1408                                                         new OO.ui.Widget( {
1409                                                                 $content: '\xa0',
1410                                                                 classes: [ 'mw-apisandbox-spacer' ]
1411                                                         } ), {
1412                                                                 align: 'inline',
1413                                                                 classes: [ 'mw-apisandbox-help-field' ],
1414                                                                 label: dl
1415                                                         }
1416                                                 );
1417
1418                                                 $widgetLabel = $( '<span>' );
1419                                                 widgetField = new OO.ui.FieldLayout(
1420                                                         widget,
1421                                                         {
1422                                                                 align: 'left',
1423                                                                 classes: [ 'mw-apisandbox-widget-field' ],
1424                                                                 label: prefix + pi.parameters[ i ].name,
1425                                                                 $label: $widgetLabel
1426                                                         }
1427                                                 );
1428
1429                                                 // FieldLayout only does click for InputElement
1430                                                 // widgets. So supply our own click handler.
1431                                                 $widgetLabel.on( 'click', widgetLabelOnClick.bind( widgetField ) );
1432
1433                                                 // Don't grey out the label when the field is disabled,
1434                                                 // it makes it too hard to read and our "disabled"
1435                                                 // isn't really disabled.
1436                                                 widgetField.onFieldDisable( false );
1437                                                 widgetField.onFieldDisable = doNothing;
1438
1439                                                 if ( Util.apiBool( pi.parameters[ i ].deprecated ) ) {
1440                                                         deprecatedItems.push( widgetField, helpField );
1441                                                 } else {
1442                                                         items.push( widgetField, helpField );
1443                                                 }
1444                                         }
1445                                 }
1446
1447                                 if ( !pi.parameters.length && !Util.apiBool( pi.dynamicparameters ) ) {
1448                                         items.push( new OO.ui.FieldLayout(
1449                                                 new OO.ui.Widget( {} ).toggle( false ), {
1450                                                         align: 'top',
1451                                                         label: Util.parseHTML( mw.message( 'apisandbox-no-parameters' ).parse() )
1452                                                 }
1453                                         ) );
1454                                 }
1455
1456                                 that.$element.empty();
1457
1458                                 new OO.ui.FieldsetLayout( {
1459                                         label: that.displayText
1460                                 } ).addItems( items )
1461                                         .$element.appendTo( that.$element );
1462
1463                                 if ( Util.apiBool( pi.dynamicparameters ) ) {
1464                                         dynamicFieldset = new OO.ui.FieldsetLayout();
1465                                         dynamicParamNameWidget = new OO.ui.TextInputWidget( {
1466                                                 placeholder: mw.message( 'apisandbox-dynamic-parameters-add-placeholder' ).text()
1467                                         } ).on( 'enter', addDynamicParamWidget );
1468                                         dynamicFieldset.addItems( [
1469                                                 new OO.ui.FieldLayout(
1470                                                         new OO.ui.Widget( {} ).toggle( false ), {
1471                                                                 align: 'top',
1472                                                                 label: Util.parseHTML( pi.dynamicparameters )
1473                                                         }
1474                                                 ),
1475                                                 new OO.ui.ActionFieldLayout(
1476                                                         dynamicParamNameWidget,
1477                                                         new OO.ui.ButtonWidget( {
1478                                                                 icon: 'add',
1479                                                                 flags: 'progressive'
1480                                                         } ).on( 'click', addDynamicParamWidget ),
1481                                                         {
1482                                                                 label: mw.message( 'apisandbox-dynamic-parameters-add-label' ).text(),
1483                                                                 align: 'left'
1484                                                         }
1485                                                 )
1486                                         ] );
1487                                         $( '<fieldset>' )
1488                                                 .append(
1489                                                         $( '<legend>' ).text( mw.message( 'apisandbox-dynamic-parameters' ).text() ),
1490                                                         dynamicFieldset.$element
1491                                                 )
1492                                                 .appendTo( that.$element );
1493                                 }
1494
1495                                 if ( deprecatedItems.length ) {
1496                                         tmp = new OO.ui.FieldsetLayout().addItems( deprecatedItems ).toggle( false );
1497                                         $( '<fieldset>' )
1498                                                 .append(
1499                                                         $( '<legend>' ).append(
1500                                                                 new OO.ui.ToggleButtonWidget( {
1501                                                                         label: mw.message( 'apisandbox-deprecated-parameters' ).text()
1502                                                                 } ).on( 'change', tmp.toggle, [], tmp ).$element
1503                                                         ),
1504                                                         tmp.$element
1505                                                 )
1506                                                 .appendTo( that.$element );
1507                                 }
1508
1509                                 // Load stored params, if any, then update the booklet if we
1510                                 // have subpages (or else just update our valid-indicator).
1511                                 tmp = that.loadFromQueryParams;
1512                                 that.loadFromQueryParams = null;
1513                                 if ( $.isPlainObject( tmp ) ) {
1514                                         that.loadQueryParams( tmp );
1515                                 }
1516                                 if ( that.getSubpages().length > 0 ) {
1517                                         ApiSandbox.updateUI( tmp );
1518                                 } else {
1519                                         that.apiCheckValid();
1520                                 }
1521                         } ).fail( function ( code, detail ) {
1522                                 that.$element.empty()
1523                                         .append(
1524                                                 new OO.ui.LabelWidget( {
1525                                                         label: mw.message( 'apisandbox-load-error', that.apiModule, detail ).text(),
1526                                                         classes: [ 'error' ]
1527                                                 } ).$element,
1528                                                 new OO.ui.ButtonWidget( {
1529                                                         label: mw.message( 'apisandbox-retry' ).text()
1530                                                 } ).on( 'click', that.loadParamInfo, [], that ).$element
1531                                         );
1532                         } );
1533         };
1534
1535         /**
1536          * Check that all widgets on the page are in a valid state.
1537          *
1538          * @return {boolean}
1539          */
1540         ApiSandbox.PageLayout.prototype.apiCheckValid = function () {
1541                 var that = this;
1542
1543                 if ( this.paramInfo === null ) {
1544                         return $.Deferred().resolve( false ).promise();
1545                 } else {
1546                         return $.when.apply( $, $.map( this.widgets, function ( widget ) {
1547                                 return widget.apiCheckValid();
1548                         } ) ).then( function () {
1549                                 that.apiIsValid = $.inArray( false, arguments ) === -1;
1550                                 if ( that.getOutlineItem() ) {
1551                                         that.getOutlineItem().setIcon( that.apiIsValid || suppressErrors ? null : 'alert' );
1552                                         that.getOutlineItem().setIconTitle(
1553                                                 that.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
1554                                         );
1555                                 }
1556                                 return $.Deferred().resolve( that.apiIsValid ).promise();
1557                         } );
1558                 }
1559         };
1560
1561         /**
1562          * Load form fields from query parameters
1563          *
1564          * @param {Object} params
1565          */
1566         ApiSandbox.PageLayout.prototype.loadQueryParams = function ( params ) {
1567                 if ( this.paramInfo === null ) {
1568                         this.loadFromQueryParams = params;
1569                 } else {
1570                         $.each( this.widgets, function ( name, widget ) {
1571                                 var v = params.hasOwnProperty( name ) ? params[ name ] : undefined;
1572                                 widget.setApiValue( v );
1573                         } );
1574                 }
1575         };
1576
1577         /**
1578          * Load query params from form fields
1579          *
1580          * @param {Object} params Write query parameters into this object
1581          * @param {Object} displayParams Write query parameters for display into this object
1582          */
1583         ApiSandbox.PageLayout.prototype.getQueryParams = function ( params, displayParams ) {
1584                 $.each( this.widgets, function ( name, widget ) {
1585                         var value = widget.getApiValue();
1586                         if ( value !== undefined ) {
1587                                 params[ name ] = value;
1588                                 if ( $.isFunction( widget.getApiValueForDisplay ) ) {
1589                                         value = widget.getApiValueForDisplay();
1590                                 }
1591                                 displayParams[ name ] = value;
1592                         }
1593                 } );
1594         };
1595
1596         /**
1597          * Fetch a list of subpage names loaded by this page
1598          *
1599          * @return {Array}
1600          */
1601         ApiSandbox.PageLayout.prototype.getSubpages = function () {
1602                 var ret = [];
1603                 $.each( this.widgets, function ( name, widget ) {
1604                         var submodules, i;
1605                         if ( $.isFunction( widget.getSubmodules ) ) {
1606                                 submodules = widget.getSubmodules();
1607                                 for ( i = 0; i < submodules.length; i++ ) {
1608                                         ret.push( {
1609                                                 key: name + '=' + submodules[ i ].value,
1610                                                 path: submodules[ i ].path,
1611                                                 prefix: widget.paramInfo.submoduleparamprefix || ''
1612                                         } );
1613                                 }
1614                         }
1615                 } );
1616                 return ret;
1617         };
1618
1619         /**
1620          * A text input with a clickable indicator
1621          *
1622          * @class
1623          * @private
1624          * @constructor
1625          * @param {Object} [config] Configuration options
1626          */
1627         function TextInputWithIndicatorWidget( config ) {
1628                 var k;
1629
1630                 config = config || {};
1631                 TextInputWithIndicatorWidget[ 'super' ].call( this, config );
1632
1633                 this.$indicator = $( '<span>' ).addClass( 'mw-apisandbox-clickable-indicator' );
1634                 OO.ui.mixin.TabIndexedElement.call(
1635                         this, $.extend( {}, config, { $tabIndexed: this.$indicator } )
1636                 );
1637
1638                 this.input = new OO.ui.TextInputWidget( $.extend( {
1639                         $indicator: this.$indicator,
1640                         disabled: this.isDisabled()
1641                 }, config.input ) );
1642
1643                 // Forward most methods for convenience
1644                 for ( k in this.input ) {
1645                         if ( $.isFunction( this.input[ k ] ) && !this[ k ] ) {
1646                                 this[ k ] = this.input[ k ].bind( this.input );
1647                         }
1648                 }
1649
1650                 this.$indicator.on( {
1651                         click: this.onIndicatorClick.bind( this ),
1652                         keypress: this.onIndicatorKeyPress.bind( this )
1653                 } );
1654
1655                 this.$element.append( this.input.$element );
1656         }
1657         OO.inheritClass( TextInputWithIndicatorWidget, OO.ui.Widget );
1658         OO.mixinClass( TextInputWithIndicatorWidget, OO.ui.mixin.TabIndexedElement );
1659         TextInputWithIndicatorWidget.prototype.onIndicatorClick = function ( e ) {
1660                 if ( !this.isDisabled() && e.which === 1 ) {
1661                         this.emit( 'indicator' );
1662                 }
1663                 return false;
1664         };
1665         TextInputWithIndicatorWidget.prototype.onIndicatorKeyPress = function ( e ) {
1666                 if ( !this.isDisabled() && ( e.which === OO.ui.Keys.SPACE || e.which === OO.ui.Keys.ENTER ) ) {
1667                         this.emit( 'indicator' );
1668                         return false;
1669                 }
1670         };
1671         TextInputWithIndicatorWidget.prototype.setDisabled = function ( disabled ) {
1672                 TextInputWithIndicatorWidget[ 'super' ].prototype.setDisabled.call( this, disabled );
1673                 if ( this.input ) {
1674                         this.input.setDisabled( this.isDisabled() );
1675                 }
1676                 return this;
1677         };
1678
1679         /**
1680          * A wrapper for a widget that provides an enable/disable button
1681          *
1682          * @class
1683          * @private
1684          * @constructor
1685          * @param {OO.ui.Widget} widget
1686          * @param {Object} [config] Configuration options
1687          */
1688         function OptionalWidget( widget, config ) {
1689                 var k;
1690
1691                 config = config || {};
1692
1693                 this.widget = widget;
1694                 this.$overlay = config.$overlay ||
1695                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-overlay' );
1696                 this.checkbox = new OO.ui.CheckboxInputWidget( config.checkbox )
1697                         .on( 'change', this.onCheckboxChange, [], this );
1698
1699                 OptionalWidget[ 'super' ].call( this, config );
1700
1701                 // Forward most methods for convenience
1702                 for ( k in this.widget ) {
1703                         if ( $.isFunction( this.widget[ k ] ) && !this[ k ] ) {
1704                                 this[ k ] = this.widget[ k ].bind( this.widget );
1705                         }
1706                 }
1707
1708                 this.$overlay.on( 'click', this.onOverlayClick.bind( this ) );
1709
1710                 this.$element
1711                         .addClass( 'mw-apisandbox-optionalWidget' )
1712                         .append(
1713                                 this.$overlay,
1714                                 $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-fields' ).append(
1715                                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-widget' ).append(
1716                                                 widget.$element
1717                                         ),
1718                                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-checkbox' ).append(
1719                                                 this.checkbox.$element
1720                                         )
1721                                 )
1722                         );
1723
1724                 this.setDisabled( widget.isDisabled() );
1725         }
1726         OO.inheritClass( OptionalWidget, OO.ui.Widget );
1727         OptionalWidget.prototype.onCheckboxChange = function ( checked ) {
1728                 this.setDisabled( !checked );
1729         };
1730         OptionalWidget.prototype.onOverlayClick = function () {
1731                 this.setDisabled( false );
1732                 if ( $.isFunction( this.widget.focus ) ) {
1733                         this.widget.focus();
1734                 }
1735         };
1736         OptionalWidget.prototype.setDisabled = function ( disabled ) {
1737                 OptionalWidget[ 'super' ].prototype.setDisabled.call( this, disabled );
1738                 this.widget.setDisabled( this.isDisabled() );
1739                 this.checkbox.setSelected( !this.isDisabled() );
1740                 this.$overlay.toggle( this.isDisabled() );
1741                 return this;
1742         };
1743
1744         $( ApiSandbox.init );
1745
1746         module.exports = ApiSandbox;
1747
1748 }( jQuery, mediaWiki, OO ) );