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

   1 /* eslint-disable no-use-before-define */
   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.getValidity().then( function () {
  30                                         return $.Deferred().resolve( true ).promise();
  31                                 }, function () {
  32                                         return $.Deferred().resolve( false ).promise();
  33                                 } ).done( function ( ok ) {
  34                                         ok = ok || suppressErrors;
  35                                         that.setIcon( ok ? null : 'alert' );
  36                                         that.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  37                                 } );
  38                         }
  39                 },
  40
  41                 dateTimeInputWidget: {
  42                         getValidity: function () {
  43                                 if ( !Util.apiBool( this.paramInfo.required ) || this.getApiValue() !== '' ) {
  44                                         return $.Deferred().resolve().promise();
  45                                 } else {
  46                                         return $.Deferred().reject().promise();
  47                                 }
  48                         }
  49                 },
  50
  51                 tokenWidget: {
  52                         alertTokenError: function ( code, error ) {
  53                                 windowManager.openWindow( 'errorAlert', {
  54                                         title: mw.message(
  55                                                 'apisandbox-results-fixtoken-fail', this.paramInfo.tokentype
  56                                         ).parse(),
  57                                         message: error,
  58                                         actions: [
  59                                                 {
  60                                                         action: 'accept',
  61                                                         label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
  62                                                         flags: 'primary'
  63                                                 }
  64                                         ]
  65                                 } );
  66                         },
  67                         fetchToken: function () {
  68                                 this.pushPending();
  69                                 return api.getToken( this.paramInfo.tokentype )
  70                                         .done( this.setApiValue.bind( this ) )
  71                                         .fail( this.alertTokenError.bind( this ) )
  72                                         .always( this.popPending.bind( this ) );
  73                         },
  74                         setApiValue: function ( v ) {
  75                                 WidgetMethods.textInputWidget.setApiValue.call( this, v );
  76                                 if ( v === '123ABC' ) {
  77                                         this.fetchToken();
  78                                 }
  79                         }
  80                 },
  81
  82                 passwordWidget: {
  83                         getApiValueForDisplay: function () {
  84                                 return '';
  85                         }
  86                 },
  87
  88                 toggleSwitchWidget: {
  89                         getApiValue: function () {
  90                                 return this.getValue() ? 1 : undefined;
  91                         },
  92                         setApiValue: function ( v ) {
  93                                 this.setValue( Util.apiBool( v ) );
  94                         },
  95                         apiCheckValid: function () {
  96                                 return $.Deferred().resolve( true ).promise();
  97                         }
  98                 },
  99
 100                 dropdownWidget: {
 101                         getApiValue: function () {
 102                                 var item = this.getMenu().getSelectedItem();
 103                                 return item === null ? undefined : item.getData();
 104                         },
 105                         setApiValue: function ( v ) {
 106                                 var menu = this.getMenu();
 107
 108                                 if ( v === undefined ) {
 109                                         v = this.paramInfo[ 'default' ];
 110                                 }
 111                                 if ( v === undefined ) {
 112                                         menu.selectItem();
 113                                 } else {
 114                                         menu.selectItemByData( String( v ) );
 115                                 }
 116                         },
 117                         apiCheckValid: function () {
 118                                 var ok = this.getApiValue() !== undefined || suppressErrors;
 119                                 this.setIcon( ok ? null : 'alert' );
 120                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 121                                 return $.Deferred().resolve( ok ).promise();
 122                         }
 123                 },
 124
 125                 capsuleWidget: {
 126                         getApiValue: function () {
 127                                 var items = this.getItemsData();
 128                                 if ( items.join( '' ).indexOf( '|' ) === -1 ) {
 129                                         return items.join( '|' );
 130                                 } else {
 131                                         return '\x1f' + items.join( '\x1f' );
 132                                 }
 133                         },
 134                         setApiValue: function ( v ) {
 135                                 if ( v === undefined || v === '' || v === '\x1f' ) {
 136                                         this.setItemsFromData( [] );
 137                                 } else {
 138                                         v = String( v );
 139                                         if ( v.indexOf( '\x1f' ) !== 0 ) {
 140                                                 this.setItemsFromData( v.split( '|' ) );
 141                                         } else {
 142                                                 this.setItemsFromData( v.substr( 1 ).split( '\x1f' ) );
 143                                         }
 144                                 }
 145                         },
 146                         apiCheckValid: function () {
 147                                 var ok = this.getApiValue() !== undefined || suppressErrors;
 148                                 this.setIcon( ok ? null : 'alert' );
 149                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 150                                 return $.Deferred().resolve( ok ).promise();
 151                         }
 152                 },
 153
 154                 optionalWidget: {
 155                         getApiValue: function () {
 156                                 return this.isDisabled() ? undefined : this.widget.getApiValue();
 157                         },
 158                         setApiValue: function ( v ) {
 159                                 this.setDisabled( v === undefined );
 160                                 this.widget.setApiValue( v );
 161                         },
 162                         apiCheckValid: function () {
 163                                 if ( this.isDisabled() ) {
 164                                         return $.Deferred().resolve( true ).promise();
 165                                 } else {
 166                                         return this.widget.apiCheckValid();
 167                                 }
 168                         }
 169                 },
 170
 171                 submoduleWidget: {
 172                         single: function () {
 173                                 var v = this.isDisabled() ? this.paramInfo[ 'default' ] : this.getApiValue();
 174                                 return v === undefined ? [] : [ { value: v, path: this.paramInfo.submodules[ v ] } ];
 175                         },
 176                         multi: function () {
 177                                 var map = this.paramInfo.submodules,
 178                                         v = this.isDisabled() ? this.paramInfo[ 'default' ] : this.getApiValue();
 179                                 return v === undefined || v === '' ? [] : $.map( String( v ).split( '|' ), function ( v ) {
 180                                         return { value: v, path: map[ v ] };
 181                                 } );
 182                         }
 183                 },
 184
 185                 uploadWidget: {
 186                         getApiValueForDisplay: function () {
 187                                 return '...';
 188                         },
 189                         getApiValue: function () {
 190                                 return this.getValue();
 191                         },
 192                         setApiValue: function () {
 193                                 // Can't, sorry.
 194                         },
 195                         apiCheckValid: function () {
 196                                 var ok = this.getValue() !== null || suppressErrors;
 197                                 this.setIcon( ok ? null : 'alert' );
 198                                 this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
 199                                 return $.Deferred().resolve( ok ).promise();
 200                         }
 201                 }
 202         };
 203
 204         Validators = {
 205                 generic: function () {
 206                         return !Util.apiBool( this.paramInfo.required ) || this.getApiValue() !== '';
 207                 }
 208         };
 209
 210         /**
 211          * @class mw.special.ApiSandbox.Utils
 212          * @private
 213          */
 214         Util = {
 215                 /**
 216                  * Fetch API module info
 217                  *
 218                  * @param {string} module Module to fetch data for
 219                  * @return {jQuery.Promise}
 220                  */
 221                 fetchModuleInfo: function ( module ) {
 222                         var apiPromise,
 223                                 deferred = $.Deferred();
 224
 225                         if ( moduleInfoCache.hasOwnProperty( module ) ) {
 226                                 return deferred
 227                                         .resolve( moduleInfoCache[ module ] )
 228                                         .promise( { abort: function () {} } );
 229                         } else {
 230                                 apiPromise = api.post( {
 231                                         action: 'paraminfo',
 232                                         modules: module,
 233                                         helpformat: 'html',
 234                                         uselang: mw.config.get( 'wgUserLanguage' )
 235                                 } ).done( function ( data ) {
 236                                         var info;
 237
 238                                         if ( data.warnings && data.warnings.paraminfo ) {
 239                                                 deferred.reject( '???', data.warnings.paraminfo[ '*' ] );
 240                                                 return;
 241                                         }
 242
 243                                         info = data.paraminfo.modules;
 244                                         if ( !info || info.length !== 1 || info[ 0 ].path !== module ) {
 245                                                 deferred.reject( '???', 'No module data returned' );
 246                                                 return;
 247                                         }
 248
 249                                         moduleInfoCache[ module ] = info[ 0 ];
 250                                         deferred.resolve( info[ 0 ] );
 251                                 } ).fail( function ( code, details ) {
 252                                         if ( code === 'http' ) {
 253                                                 details = 'HTTP error: ' + details.exception;
 254                                         } else if ( details.error ) {
 255                                                 details = details.error.info;
 256                                         }
 257                                         deferred.reject( code, details );
 258                                 } );
 259                                 return deferred
 260                                         .promise( { abort: apiPromise.abort } );
 261                         }
 262                 },
 263
 264                 /**
 265                  * Mark all currently-in-use tokens as bad
 266                  */
 267                 markTokensBad: function () {
 268                         var page, subpages, i,
 269                                 checkPages = [ pages.main ];
 270
 271                         while ( checkPages.length ) {
 272                                 page = checkPages.shift();
 273
 274                                 if ( page.tokenWidget ) {
 275                                         api.badToken( page.tokenWidget.paramInfo.tokentype );
 276                                 }
 277
 278                                 subpages = page.getSubpages();
 279                                 for ( i = 0; i < subpages.length; i++ ) {
 280                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
 281                                                 checkPages.push( pages[ subpages[ i ].key ] );
 282                                         }
 283                                 }
 284                         }
 285                 },
 286
 287                 /**
 288                  * Test an API boolean
 289                  *
 290                  * @param {Mixed} value
 291                  * @return {boolean}
 292                  */
 293                 apiBool: function ( value ) {
 294                         return value !== undefined && value !== false;
 295                 },
 296
 297                 /**
 298                  * Create a widget for a parameter.
 299                  *
 300                  * @param {Object} pi Parameter info from API
 301                  * @param {Object} opts Additional options
 302                  * @return {OO.ui.Widget}
 303                  */
 304                 createWidgetForParameter: function ( pi, opts ) {
 305                         var widget, innerWidget, finalWidget, items, $button, $content, func,
 306                                 multiMode = 'none';
 307
 308                         opts = opts || {};
 309
 310                         switch ( pi.type ) {
 311                                 case 'boolean':
 312                                         widget = new OO.ui.ToggleSwitchWidget();
 313                                         widget.paramInfo = pi;
 314                                         $.extend( widget, WidgetMethods.toggleSwitchWidget );
 315                                         pi.required = true; // Avoid wrapping in the non-required widget
 316                                         break;
 317
 318                                 case 'string':
 319                                 case 'user':
 320                                         if ( pi.tokentype ) {
 321                                                 widget = new TextInputWithIndicatorWidget( {
 322                                                         input: {
 323                                                                 indicator: 'previous',
 324                                                                 indicatorTitle: mw.message( 'apisandbox-fetch-token' ).text(),
 325                                                                 required: Util.apiBool( pi.required )
 326                                                         }
 327                                                 } );
 328                                         } else if ( Util.apiBool( pi.multi ) ) {
 329                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 330                                                         allowArbitrary: true
 331                                                 } );
 332                                                 widget.paramInfo = pi;
 333                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 334                                         } else {
 335                                                 widget = new OO.ui.TextInputWidget( {
 336                                                         required: Util.apiBool( pi.required )
 337                                                 } );
 338                                         }
 339                                         if ( !Util.apiBool( pi.multi ) ) {
 340                                                 widget.paramInfo = pi;
 341                                                 $.extend( widget, WidgetMethods.textInputWidget );
 342                                                 widget.setValidation( Validators.generic );
 343                                         }
 344                                         if ( pi.tokentype ) {
 345                                                 $.extend( widget, WidgetMethods.tokenWidget );
 346                                                 widget.input.paramInfo = pi;
 347                                                 $.extend( widget.input, WidgetMethods.textInputWidget );
 348                                                 $.extend( widget.input, WidgetMethods.tokenWidget );
 349                                                 widget.on( 'indicator', widget.fetchToken, [], widget );
 350                                         }
 351                                         break;
 352
 353                                 case 'text':
 354                                         widget = new OO.ui.TextInputWidget( {
 355                                                 multiline: true,
 356                                                 required: Util.apiBool( pi.required )
 357                                         } );
 358                                         widget.paramInfo = pi;
 359                                         $.extend( widget, WidgetMethods.textInputWidget );
 360                                         widget.setValidation( Validators.generic );
 361                                         break;
 362
 363                                 case 'password':
 364                                         widget = new OO.ui.TextInputWidget( {
 365                                                 type: 'password',
 366                                                 required: Util.apiBool( pi.required )
 367                                         } );
 368                                         widget.paramInfo = pi;
 369                                         $.extend( widget, WidgetMethods.textInputWidget );
 370                                         $.extend( widget, WidgetMethods.passwordWidget );
 371                                         widget.setValidation( Validators.generic );
 372                                         multiMode = 'enter';
 373                                         break;
 374
 375                                 case 'integer':
 376                                         widget = new OO.ui.NumberInputWidget( {
 377                                                 required: Util.apiBool( pi.required ),
 378                                                 isInteger: true
 379                                         } );
 380                                         widget.setIcon = widget.input.setIcon.bind( widget.input );
 381                                         widget.setIconTitle = widget.input.setIconTitle.bind( widget.input );
 382                                         widget.getValidity = widget.input.getValidity.bind( widget.input );
 383                                         widget.paramInfo = pi;
 384                                         $.extend( widget, WidgetMethods.textInputWidget );
 385                                         if ( Util.apiBool( pi.enforcerange ) ) {
 386                                                 widget.setRange( pi.min || -Infinity, pi.max || Infinity );
 387                                         }
 388                                         multiMode = 'enter';
 389                                         break;
 390
 391                                 case 'limit':
 392                                         widget = new OO.ui.TextInputWidget( {
 393                                                 required: Util.apiBool( pi.required )
 394                                         } );
 395                                         widget.setValidation( function ( value ) {
 396                                                 var n, pi = this.paramInfo;
 397
 398                                                 if ( value === 'max' ) {
 399                                                         return true;
 400                                                 } else {
 401                                                         n = +value;
 402                                                         return !isNaN( n ) && isFinite( n ) &&
 403                                                                 // eslint-disable-next-line no-bitwise
 404                                                                 ( n | 0 ) === n &&
 405                                                                 n >= pi.min && n <= pi.apiSandboxMax;
 406                                                 }
 407                                         } );
 408                                         pi.min = pi.min || 0;
 409                                         pi.apiSandboxMax = mw.config.get( 'apihighlimits' ) ? pi.highmax : pi.max;
 410                                         widget.paramInfo = pi;
 411                                         $.extend( widget, WidgetMethods.textInputWidget );
 412                                         multiMode = 'enter';
 413                                         break;
 414
 415                                 case 'timestamp':
 416                                         widget = new mw.widgets.datetime.DateTimeInputWidget( {
 417                                                 formatter: {
 418                                                         format: '${year|0}-${month|0}-${day|0}T${hour|0}:${minute|0}:${second|0}${zone|short}'
 419                                                 },
 420                                                 required: Util.apiBool( pi.required ),
 421                                                 clearable: false
 422                                         } );
 423                                         widget.paramInfo = pi;
 424                                         $.extend( widget, WidgetMethods.textInputWidget );
 425                                         $.extend( widget, WidgetMethods.dateTimeInputWidget );
 426                                         multiMode = 'indicator';
 427                                         break;
 428
 429                                 case 'upload':
 430                                         widget = new OO.ui.SelectFileWidget();
 431                                         widget.paramInfo = pi;
 432                                         $.extend( widget, WidgetMethods.uploadWidget );
 433                                         break;
 434
 435                                 case 'namespace':
 436                                         items = $.map( mw.config.get( 'wgFormattedNamespaces' ), function ( name, ns ) {
 437                                                 if ( ns === '0' ) {
 438                                                         name = mw.message( 'blanknamespace' ).text();
 439                                                 }
 440                                                 return new OO.ui.MenuOptionWidget( { data: ns, label: name } );
 441                                         } ).sort( function ( a, b ) {
 442                                                 return a.data - b.data;
 443                                         } );
 444                                         if ( Util.apiBool( pi.multi ) ) {
 445                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 446                                                         menu: { items: items }
 447                                                 } );
 448                                                 widget.paramInfo = pi;
 449                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 450                                         } else {
 451                                                 widget = new OO.ui.DropdownWidget( {
 452                                                         menu: { items: items }
 453                                                 } );
 454                                                 widget.paramInfo = pi;
 455                                                 $.extend( widget, WidgetMethods.dropdownWidget );
 456                                         }
 457                                         break;
 458
 459                                 default:
 460                                         if ( !$.isArray( pi.type ) ) {
 461                                                 throw new Error( 'Unknown parameter type ' + pi.type );
 462                                         }
 463
 464                                         items = $.map( pi.type, function ( v ) {
 465                                                 return new OO.ui.MenuOptionWidget( { data: String( v ), label: String( v ) } );
 466                                         } );
 467                                         if ( Util.apiBool( pi.multi ) ) {
 468                                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 469                                                         menu: { items: items }
 470                                                 } );
 471                                                 widget.paramInfo = pi;
 472                                                 $.extend( widget, WidgetMethods.capsuleWidget );
 473                                                 if ( Util.apiBool( pi.submodules ) ) {
 474                                                         widget.getSubmodules = WidgetMethods.submoduleWidget.multi;
 475                                                         widget.on( 'change', ApiSandbox.updateUI );
 476                                                 }
 477                                         } else {
 478                                                 widget = new OO.ui.DropdownWidget( {
 479                                                         menu: { items: items }
 480                                                 } );
 481                                                 widget.paramInfo = pi;
 482                                                 $.extend( widget, WidgetMethods.dropdownWidget );
 483                                                 if ( Util.apiBool( pi.submodules ) ) {
 484                                                         widget.getSubmodules = WidgetMethods.submoduleWidget.single;
 485                                                         widget.getMenu().on( 'choose', ApiSandbox.updateUI );
 486                                                 }
 487                                         }
 488
 489                                         break;
 490                         }
 491
 492                         if ( Util.apiBool( pi.multi ) && multiMode !== 'none' ) {
 493                                 innerWidget = widget;
 494                                 switch ( multiMode ) {
 495                                         case 'enter':
 496                                                 $content = innerWidget.$element;
 497                                                 break;
 498
 499                                         case 'indicator':
 500                                                 $button = innerWidget.$indicator;
 501                                                 $button.css( 'cursor', 'pointer' );
 502                                                 $button.attr( 'tabindex', 0 );
 503                                                 $button.parent().append( $button );
 504                                                 innerWidget.setIndicator( 'next' );
 505                                                 $content = innerWidget.$element;
 506                                                 break;
 507
 508                                         default:
 509                                                 throw new Error( 'Unknown multiMode "' + multiMode + '"' );
 510                                 }
 511
 512                                 widget = new OO.ui.CapsuleMultiselectWidget( {
 513                                         allowArbitrary: true,
 514                                         popup: {
 515                                                 classes: [ 'mw-apisandbox-popup' ],
 516                                                 $content: $content
 517                                         }
 518                                 } );
 519                                 widget.paramInfo = pi;
 520                                 $.extend( widget, WidgetMethods.capsuleWidget );
 521
 522                                 func = function () {
 523                                         if ( !innerWidget.isDisabled() ) {
 524                                                 innerWidget.apiCheckValid().done( function ( ok ) {
 525                                                         if ( ok ) {
 526                                                                 widget.addItemsFromData( [ innerWidget.getApiValue() ] );
 527                                                                 innerWidget.setApiValue( undefined );
 528                                                         }
 529                                                 } );
 530                                                 return false;
 531                                         }
 532                                 };
 533                                 switch ( multiMode ) {
 534                                         case 'enter':
 535                                                 innerWidget.connect( null, { enter: func } );
 536                                                 break;
 537
 538                                         case 'indicator':
 539                                                 $button.on( {
 540                                                         click: func,
 541                                                         keypress: function ( e ) {
 542                                                                 if ( e.which === OO.ui.Keys.SPACE || e.which === OO.ui.Keys.ENTER ) {
 543                                                                         func();
 544                                                                 }
 545                                                         }
 546                                                 } );
 547                                                 break;
 548                                 }
 549                         }
 550
 551                         if ( Util.apiBool( pi.required ) || opts.nooptional ) {
 552                                 finalWidget = widget;
 553                         } else {
 554                                 finalWidget = new OptionalWidget( widget );
 555                                 finalWidget.paramInfo = pi;
 556                                 $.extend( finalWidget, WidgetMethods.optionalWidget );
 557                                 if ( widget.getSubmodules ) {
 558                                         finalWidget.getSubmodules = widget.getSubmodules.bind( widget );
 559                                         finalWidget.on( 'disable', function () { setTimeout( ApiSandbox.updateUI ); } );
 560                                 }
 561                                 finalWidget.setDisabled( true );
 562                         }
 563
 564                         widget.setApiValue( pi[ 'default' ] );
 565
 566                         return finalWidget;
 567                 },
 568
 569                 /**
 570                  * Parse an HTML string, adding target="_blank" to any links
 571                  *
 572                  * @param {string} html HTML to parse
 573                  * @return {jQuery}
 574                  */
 575                 parseHTML: function ( html ) {
 576                         var $ret = $( $.parseHTML( html ) );
 577                         $ret.filter( 'a' ).add( $ret.find( 'a' ) )
 578                                 .filter( '[href]:not([target])' )
 579                                 .attr( 'target', '_blank' );
 580                         return $ret;
 581                 }
 582         };
 583
 584         /**
 585         * Interface to ApiSandbox UI
 586         *
 587         * @class mw.special.ApiSandbox
 588         */
 589         ApiSandbox = {
 590                 /**
 591                  * Initialize the UI
 592                  *
 593                  * Automatically called on $.ready()
 594                  */
 595                 init: function () {
 596                         var $toolbar;
 597
 598                         ApiSandbox.isFullscreen = false;
 599
 600                         $content = $( '#mw-apisandbox' );
 601
 602                         windowManager = new OO.ui.WindowManager();
 603                         $( 'body' ).append( windowManager.$element );
 604                         windowManager.addWindows( {
 605                                 errorAlert: new OO.ui.MessageDialog()
 606                         } );
 607
 608                         fullscreenButton = new OO.ui.ButtonWidget( {
 609                                 label: mw.message( 'apisandbox-fullscreen' ).text(),
 610                                 title: mw.message( 'apisandbox-fullscreen-tooltip' ).text()
 611                         } ).on( 'click', ApiSandbox.toggleFullscreen );
 612
 613                         $toolbar = $( '<div>' )
 614                                 .addClass( 'mw-apisandbox-toolbar' )
 615                                 .append(
 616                                         fullscreenButton.$element,
 617                                         new OO.ui.ButtonWidget( {
 618                                                 label: mw.message( 'apisandbox-submit' ).text(),
 619                                                 flags: [ 'primary', 'progressive' ]
 620                                         } ).on( 'click', ApiSandbox.sendRequest ).$element,
 621                                         new OO.ui.ButtonWidget( {
 622                                                 label: mw.message( 'apisandbox-reset' ).text(),
 623                                                 flags: 'destructive'
 624                                         } ).on( 'click', ApiSandbox.resetUI ).$element
 625                                 );
 626
 627                         booklet = new OO.ui.BookletLayout( {
 628                                 outlined: true,
 629                                 autoFocus: false
 630                         } );
 631
 632                         panel = new OO.ui.PanelLayout( {
 633                                 classes: [ 'mw-apisandbox-container' ],
 634                                 content: [ booklet ],
 635                                 expanded: false,
 636                                 framed: true
 637                         } );
 638
 639                         pages.main = new ApiSandbox.PageLayout( { key: 'main', path: 'main' } );
 640
 641                         // Parse the current hash string
 642                         if ( !ApiSandbox.loadFromHash() ) {
 643                                 ApiSandbox.updateUI();
 644                         }
 645
 646                         // If the hashchange event exists, use it. Otherwise, fake it.
 647                         // And, of course, IE has to be dumb.
 648                         if ( 'onhashchange' in window &&
 649                                 ( document.documentMode === undefined || document.documentMode >= 8 )
 650                         ) {
 651                                 $( window ).on( 'hashchange', ApiSandbox.loadFromHash );
 652                         } else {
 653                                 setInterval( function () {
 654                                         if ( oldhash !== location.hash ) {
 655                                                 ApiSandbox.loadFromHash();
 656                                         }
 657                                 }, 1000 );
 658                         }
 659
 660                         $content
 661                                 .empty()
 662                                 .append( $( '<p>' ).append( mw.message( 'apisandbox-intro' ).parse() ) )
 663                                 .append(
 664                                         $( '<div>', { id: 'mw-apisandbox-ui' } )
 665                                                 .append( $toolbar )
 666                                                 .append( panel.$element )
 667                                 );
 668
 669                         $( window ).on( 'resize', ApiSandbox.resizePanel );
 670
 671                         ApiSandbox.resizePanel();
 672                 },
 673
 674                 /**
 675                  * Toggle "fullscreen" mode
 676                  */
 677                 toggleFullscreen: function () {
 678                         var $body = $( document.body ),
 679                                 $ui = $( '#mw-apisandbox-ui' );
 680
 681                         ApiSandbox.isFullscreen = !ApiSandbox.isFullscreen;
 682
 683                         $body.toggleClass( 'mw-apisandbox-fullscreen', ApiSandbox.isFullscreen );
 684                         $ui.toggleClass( 'mw-body-content', ApiSandbox.isFullscreen );
 685                         if ( ApiSandbox.isFullscreen ) {
 686                                 fullscreenButton.setLabel( mw.message( 'apisandbox-unfullscreen' ).text() );
 687                                 fullscreenButton.setTitle( mw.message( 'apisandbox-unfullscreen-tooltip' ).text() );
 688                                 $body.append( $ui );
 689                         } else {
 690                                 fullscreenButton.setLabel( mw.message( 'apisandbox-fullscreen' ).text() );
 691                                 fullscreenButton.setTitle( mw.message( 'apisandbox-fullscreen-tooltip' ).text() );
 692                                 $content.append( $ui );
 693                         }
 694                         ApiSandbox.resizePanel();
 695                 },
 696
 697                 /**
 698                  * Set the height of the panel based on the current viewport.
 699                  */
 700                 resizePanel: function () {
 701                         var height = $( window ).height(),
 702                                 contentTop = $content.offset().top;
 703
 704                         if ( ApiSandbox.isFullscreen ) {
 705                                 height -= panel.$element.offset().top - $( '#mw-apisandbox-ui' ).offset().top;
 706                                 panel.$element.height( height - 1 );
 707                         } else {
 708                                 // Subtract the height of the intro text
 709                                 height -= panel.$element.offset().top - contentTop;
 710
 711                                 panel.$element.height( height - 10 );
 712                                 $( window ).scrollTop( contentTop - 5 );
 713                         }
 714                 },
 715
 716                 /**
 717                  * Update the current query when the page hash changes
 718                  *
 719                  * @return {boolean} Successful
 720                  */
 721                 loadFromHash: function () {
 722                         var params, m, re,
 723                                 hash = location.hash;
 724
 725                         if ( oldhash === hash ) {
 726                                 return false;
 727                         }
 728                         oldhash = hash;
 729                         if ( hash === '' ) {
 730                                 return false;
 731                         }
 732
 733                         // I'm surprised this doesn't seem to exist in jQuery or mw.util.
 734                         params = {};
 735                         hash = hash.replace( /\+/g, '%20' );
 736                         re = /([^&=#]+)=?([^&#]*)/g;
 737                         while ( ( m = re.exec( hash ) ) ) {
 738                                 params[ decodeURIComponent( m[ 1 ] ) ] = decodeURIComponent( m[ 2 ] );
 739                         }
 740
 741                         ApiSandbox.updateUI( params );
 742                         return true;
 743                 },
 744
 745                 /**
 746                  * Update the pages in the booklet
 747                  *
 748                  * @param {Object} [params] Optional query parameters to load
 749                  */
 750                 updateUI: function ( params ) {
 751                         var i, page, subpages, j, removePages,
 752                                 addPages = [];
 753
 754                         if ( !$.isPlainObject( params ) ) {
 755                                 params = undefined;
 756                         }
 757
 758                         if ( updatingBooklet ) {
 759                                 return;
 760                         }
 761                         updatingBooklet = true;
 762                         try {
 763                                 if ( params !== undefined ) {
 764                                         pages.main.loadQueryParams( params );
 765                                 }
 766                                 addPages.push( pages.main );
 767                                 if ( resultPage !== null ) {
 768                                         addPages.push( resultPage );
 769                                 }
 770                                 pages.main.apiCheckValid();
 771
 772                                 i = 0;
 773                                 while ( addPages.length ) {
 774                                         page = addPages.shift();
 775                                         if ( bookletPages[ i ] !== page ) {
 776                                                 for ( j = i; j < bookletPages.length; j++ ) {
 777                                                         if ( bookletPages[ j ].getName() === page.getName() ) {
 778                                                                 bookletPages.splice( j, 1 );
 779                                                         }
 780                                                 }
 781                                                 bookletPages.splice( i, 0, page );
 782                                                 booklet.addPages( [ page ], i );
 783                                         }
 784                                         i++;
 785
 786                                         if ( page.getSubpages ) {
 787                                                 subpages = page.getSubpages();
 788                                                 for ( j = 0; j < subpages.length; j++ ) {
 789                                                         if ( !pages.hasOwnProperty( subpages[ j ].key ) ) {
 790                                                                 subpages[ j ].indentLevel = page.indentLevel + 1;
 791                                                                 pages[ subpages[ j ].key ] = new ApiSandbox.PageLayout( subpages[ j ] );
 792                                                         }
 793                                                         if ( params !== undefined ) {
 794                                                                 pages[ subpages[ j ].key ].loadQueryParams( params );
 795                                                         }
 796                                                         addPages.splice( j, 0, pages[ subpages[ j ].key ] );
 797                                                         pages[ subpages[ j ].key ].apiCheckValid();
 798                                                 }
 799                                         }
 800                                 }
 801
 802                                 if ( bookletPages.length > i ) {
 803                                         removePages = bookletPages.splice( i, bookletPages.length - i );
 804                                         booklet.removePages( removePages );
 805                                 }
 806
 807                                 if ( !booklet.getCurrentPageName() ) {
 808                                         booklet.selectFirstSelectablePage();
 809                                 }
 810                         } finally {
 811                                 updatingBooklet = false;
 812                         }
 813                 },
 814
 815                 /**
 816                  * Reset button handler
 817                  */
 818                 resetUI: function () {
 819                         suppressErrors = true;
 820                         pages = {
 821                                 main: new ApiSandbox.PageLayout( { key: 'main', path: 'main' } )
 822                         };
 823                         resultPage = null;
 824                         ApiSandbox.updateUI();
 825                 },
 826
 827                 /**
 828                  * Submit button handler
 829                  *
 830                  * @param {Object} [params] Use this set of params instead of those in the form fields.
 831                  *   The form fields will be updated to match.
 832                  */
 833                 sendRequest: function ( params ) {
 834                         var page, subpages, i, query, $result, $focus,
 835                                 progress, $progressText, progressLoading,
 836                                 deferreds = [],
 837                                 paramsAreForced = !!params,
 838                                 displayParams = {},
 839                                 checkPages = [ pages.main ];
 840
 841                         // Blur any focused widget before submit, because
 842                         // OO.ui.ButtonWidget doesn't take focus itself (T128054)
 843                         $focus = $( '#mw-apisandbox-ui' ).find( document.activeElement );
 844                         if ( $focus.length ) {
 845                                 $focus[ 0 ].blur();
 846                         }
 847
 848                         suppressErrors = false;
 849
 850                         // save widget state in params (or load from it if we are forced)
 851                         if ( paramsAreForced ) {
 852                                 ApiSandbox.updateUI( params );
 853                         }
 854                         params = {};
 855                         while ( checkPages.length ) {
 856                                 page = checkPages.shift();
 857                                 deferreds.push( page.apiCheckValid() );
 858                                 page.getQueryParams( params, displayParams );
 859                                 subpages = page.getSubpages();
 860                                 for ( i = 0; i < subpages.length; i++ ) {
 861                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
 862                                                 checkPages.push( pages[ subpages[ i ].key ] );
 863                                         }
 864                                 }
 865                         }
 866
 867                         if ( !paramsAreForced ) {
 868                                 // forced params means we are continuing a query; the base query should be preserved
 869                                 baseRequestParams = $.extend( {}, params );
 870                         }
 871
 872                         $.when.apply( $, deferreds ).done( function () {
 873                                 if ( $.inArray( false, arguments ) !== -1 ) {
 874                                         windowManager.openWindow( 'errorAlert', {
 875                                                 title: mw.message( 'apisandbox-submit-invalid-fields-title' ).parse(),
 876                                                 message: mw.message( 'apisandbox-submit-invalid-fields-message' ).parse(),
 877                                                 actions: [
 878                                                         {
 879                                                                 action: 'accept',
 880                                                                 label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
 881                                                                 flags: 'primary'
 882                                                         }
 883                                                 ]
 884                                         } );
 885                                         return;
 886                                 }
 887
 888                                 query = $.param( displayParams );
 889
 890                                 // Force a 'fm' format with wrappedhtml=1, if available
 891                                 if ( params.format !== undefined ) {
 892                                         if ( availableFormats.hasOwnProperty( params.format + 'fm' ) ) {
 893                                                 params.format = params.format + 'fm';
 894                                         }
 895                                         if ( params.format.substr( -2 ) === 'fm' ) {
 896                                                 params.wrappedhtml = 1;
 897                                         }
 898                                 }
 899
 900                                 progressLoading = false;
 901                                 $progressText = $( '<span>' ).text( mw.message( 'apisandbox-sending-request' ).text() );
 902                                 progress = new OO.ui.ProgressBarWidget( {
 903                                         progress: false,
 904                                         $content: $progressText
 905                                 } );
 906
 907                                 $result = $( '<div>' )
 908                                         .append( progress.$element );
 909
 910                                 resultPage = page = new OO.ui.PageLayout( '|results|' );
 911                                 page.setupOutlineItem = function () {
 912                                         this.outlineItem.setLabel( mw.message( 'apisandbox-results' ).text() );
 913                                 };
 914                                 page.$element.empty()
 915                                         .append(
 916                                                 new OO.ui.FieldLayout(
 917                                                         new OO.ui.TextInputWidget( {
 918                                                                 readOnly: true,
 919                                                                 value: mw.util.wikiScript( 'api' ) + '?' + query
 920                                                         } ), {
 921                                                                 label: mw.message( 'apisandbox-request-url-label' ).parse()
 922                                                         }
 923                                                 ).$element,
 924                                                 $result
 925                                         );
 926                                 ApiSandbox.updateUI();
 927                                 booklet.setPage( '|results|' );
 928
 929                                 location.href = oldhash = '#' + query;
 930
 931                                 api.post( params, {
 932                                         contentType: 'multipart/form-data',
 933                                         dataType: 'text',
 934                                         xhr: function () {
 935                                                 var xhr = new window.XMLHttpRequest();
 936                                                 xhr.upload.addEventListener( 'progress', function ( e ) {
 937                                                         if ( !progressLoading ) {
 938                                                                 if ( e.lengthComputable ) {
 939                                                                         progress.setProgress( e.loaded * 100 / e.total );
 940                                                                 } else {
 941                                                                         progress.setProgress( false );
 942                                                                 }
 943                                                         }
 944                                                 } );
 945                                                 xhr.addEventListener( 'progress', function ( e ) {
 946                                                         if ( !progressLoading ) {
 947                                                                 progressLoading = true;
 948                                                                 $progressText.text( mw.message( 'apisandbox-loading-results' ).text() );
 949                                                         }
 950                                                         if ( e.lengthComputable ) {
 951                                                                 progress.setProgress( e.loaded * 100 / e.total );
 952                                                         } else {
 953                                                                 progress.setProgress( false );
 954                                                         }
 955                                                 } );
 956                                                 return xhr;
 957                                         }
 958                                 } )
 959                                         .then( null, function ( code, data, result, jqXHR ) {
 960                                                 if ( code !== 'http' ) {
 961                                                         // Not really an error, work around mw.Api thinking it is.
 962                                                         return $.Deferred()
 963                                                                 .resolve( result, jqXHR )
 964                                                                 .promise();
 965                                                 }
 966                                                 return this;
 967                                         } )
 968                                         .fail( function ( code, data ) {
 969                                                 var details = 'HTTP error: ' + data.exception;
 970                                                 $result.empty()
 971                                                         .append(
 972                                                                 new OO.ui.LabelWidget( {
 973                                                                         label: mw.message( 'apisandbox-results-error', details ).text(),
 974                                                                         classes: [ 'error' ]
 975                                                                 } ).$element
 976                                                         );
 977                                         } )
 978                                         .done( function ( data, jqXHR ) {
 979                                                 var m, loadTime, button, clear,
 980                                                         ct = jqXHR.getResponseHeader( 'Content-Type' );
 981
 982                                                 $result.empty();
 983                                                 if ( /^text\/mediawiki-api-prettyprint-wrapped(?:;|$)/.test( ct ) ) {
 984                                                         data = $.parseJSON( data );
 985                                                         if ( data.modules.length ) {
 986                                                                 mw.loader.load( data.modules );
 987                                                         }
 988                                                         if ( data.status && data.status !== 200 ) {
 989                                                                 $( '<div>' )
 990                                                                         .addClass( 'api-pretty-header api-pretty-status' )
 991                                                                         .append(
 992                                                                                 mw.message( 'api-format-prettyprint-status', data.status, data.statustext ).parse()
 993                                                                         )
 994                                                                         .appendTo( $result );
 995                                                         }
 996                                                         $result.append( Util.parseHTML( data.html ) );
 997                                                         loadTime = data.time;
 998                                                 } else if ( ( m = data.match( /<pre[ >][\s\S]*<\/pre>/ ) ) ) {
 999                                                         $result.append( Util.parseHTML( m[ 0 ] ) );
1000                                                         if ( ( m = data.match( /"wgBackendResponseTime":\s*(\d+)/ ) ) ) {
1001                                                                 loadTime = parseInt( m[ 1 ], 10 );
1002                                                         }
1003                                                 } else {
1004                                                         $( '<pre>' )
1005                                                                 .addClass( 'api-pretty-content' )
1006                                                                 .text( data )
1007                                                                 .appendTo( $result );
1008                                                 }
1009                                                 if ( paramsAreForced || data[ 'continue' ] ) {
1010                                                         $result.append(
1011                                                                 $( '<div>' ).append(
1012                                                                         new OO.ui.ButtonWidget( {
1013                                                                                 label: mw.message( 'apisandbox-continue' ).text()
1014                                                                         } ).on( 'click', function () {
1015                                                                                 ApiSandbox.sendRequest( $.extend( {}, baseRequestParams, data[ 'continue' ] ) );
1016                                                                         } ).setDisabled( !data[ 'continue' ] ).$element,
1017                                                                         ( clear = new OO.ui.ButtonWidget( {
1018                                                                                 label: mw.message( 'apisandbox-continue-clear' ).text()
1019                                                                         } ).on( 'click', function () {
1020                                                                                 ApiSandbox.updateUI( baseRequestParams );
1021                                                                                 clear.setDisabled( true );
1022                                                                                 booklet.setPage( '|results|' );
1023                                                                         } ).setDisabled( !paramsAreForced ) ).$element,
1024                                                                         new OO.ui.PopupButtonWidget( {
1025                                                                                 framed: false,
1026                                                                                 icon: 'info',
1027                                                                                 popup: {
1028                                                                                         $content: $( '<div>' ).append( mw.message( 'apisandbox-continue-help' ).parse() ),
1029                                                                                         padded: true
1030                                                                                 }
1031                                                                         } ).$element
1032                                                                 )
1033                                                         );
1034                                                 }
1035                                                 if ( typeof loadTime === 'number' ) {
1036                                                         $result.append(
1037                                                                 $( '<div>' ).append(
1038                                                                         new OO.ui.LabelWidget( {
1039                                                                                 label: mw.message( 'apisandbox-request-time', loadTime ).text()
1040                                                                         } ).$element
1041                                                                 )
1042                                                         );
1043                                                 }
1044
1045                                                 if ( jqXHR.getResponseHeader( 'MediaWiki-API-Error' ) === 'badtoken' ) {
1046                                                         // Flush all saved tokens in case one of them is the bad one.
1047                                                         Util.markTokensBad();
1048                                                         button = new OO.ui.ButtonWidget( {
1049                                                                 label: mw.message( 'apisandbox-results-fixtoken' ).text()
1050                                                         } );
1051                                                         button.on( 'click', ApiSandbox.fixTokenAndResend )
1052                                                                 .on( 'click', button.setDisabled, [ true ], button )
1053                                                                 .$element.appendTo( $result );
1054                                                 }
1055                                         } );
1056                         } );
1057                 },
1058
1059                 /**
1060                  * Handler for the "Correct token and resubmit" button
1061                  *
1062                  * Used on a 'badtoken' error, it re-fetches token parameters for all
1063                  * pages and then re-submits the query.
1064                  */
1065                 fixTokenAndResend: function () {
1066                         var page, subpages, i, k,
1067                                 ok = true,
1068                                 tokenWait = { dummy: true },
1069                                 checkPages = [ pages.main ],
1070                                 success = function ( k ) {
1071                                         delete tokenWait[ k ];
1072                                         if ( ok && $.isEmptyObject( tokenWait ) ) {
1073                                                 ApiSandbox.sendRequest();
1074                                         }
1075                                 },
1076                                 failure = function ( k ) {
1077                                         delete tokenWait[ k ];
1078                                         ok = false;
1079                                 };
1080
1081                         while ( checkPages.length ) {
1082                                 page = checkPages.shift();
1083
1084                                 if ( page.tokenWidget ) {
1085                                         k = page.apiModule + page.tokenWidget.paramInfo.name;
1086                                         tokenWait[ k ] = page.tokenWidget.fetchToken()
1087                                                 .done( success.bind( page.tokenWidget, k ) )
1088                                                 .fail( failure.bind( page.tokenWidget, k ) );
1089                                 }
1090
1091                                 subpages = page.getSubpages();
1092                                 for ( i = 0; i < subpages.length; i++ ) {
1093                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
1094                                                 checkPages.push( pages[ subpages[ i ].key ] );
1095                                         }
1096                                 }
1097                         }
1098
1099                         success( 'dummy', '' );
1100                 },
1101
1102                 /**
1103                  * Reset validity indicators for all widgets
1104                  */
1105                 updateValidityIndicators: function () {
1106                         var page, subpages, i,
1107                                 checkPages = [ pages.main ];
1108
1109                         while ( checkPages.length ) {
1110                                 page = checkPages.shift();
1111                                 page.apiCheckValid();
1112                                 subpages = page.getSubpages();
1113                                 for ( i = 0; i < subpages.length; i++ ) {
1114                                         if ( pages.hasOwnProperty( subpages[ i ].key ) ) {
1115                                                 checkPages.push( pages[ subpages[ i ].key ] );
1116                                         }
1117                                 }
1118                         }
1119                 }
1120         };
1121
1122         /**
1123          * PageLayout for API modules
1124          *
1125          * @class
1126          * @private
1127          * @extends OO.ui.PageLayout
1128          * @constructor
1129          * @param {Object} [config] Configuration options
1130          */
1131         ApiSandbox.PageLayout = function ( config ) {
1132                 config = $.extend( { prefix: '' }, config );
1133                 this.displayText = config.key;
1134                 this.apiModule = config.path;
1135                 this.prefix = config.prefix;
1136                 this.paramInfo = null;
1137                 this.apiIsValid = true;
1138                 this.loadFromQueryParams = null;
1139                 this.widgets = {};
1140                 this.tokenWidget = null;
1141                 this.indentLevel = config.indentLevel ? config.indentLevel : 0;
1142                 ApiSandbox.PageLayout[ 'super' ].call( this, config.key, config );
1143                 this.loadParamInfo();
1144         };
1145         OO.inheritClass( ApiSandbox.PageLayout, OO.ui.PageLayout );
1146         ApiSandbox.PageLayout.prototype.setupOutlineItem = function () {
1147                 this.outlineItem.setLevel( this.indentLevel );
1148                 this.outlineItem.setLabel( this.displayText );
1149                 this.outlineItem.setIcon( this.apiIsValid || suppressErrors ? null : 'alert' );
1150                 this.outlineItem.setIconTitle(
1151                         this.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
1152                 );
1153         };
1154
1155         /**
1156          * Fetch module information for this page's module, then create UI
1157          */
1158         ApiSandbox.PageLayout.prototype.loadParamInfo = function () {
1159                 var dynamicFieldset, dynamicParamNameWidget,
1160                         that = this,
1161                         removeDynamicParamWidget = function ( name, layout ) {
1162                                 dynamicFieldset.removeItems( [ layout ] );
1163                                 delete that.widgets[ name ];
1164                         },
1165                         addDynamicParamWidget = function () {
1166                                 var name, layout, widget, button;
1167
1168                                 // Check name is filled in
1169                                 name = dynamicParamNameWidget.getValue().trim();
1170                                 if ( name === '' ) {
1171                                         dynamicParamNameWidget.focus();
1172                                         return;
1173                                 }
1174
1175                                 if ( that.widgets[ name ] !== undefined ) {
1176                                         windowManager.openWindow( 'errorAlert', {
1177                                                 title: mw.message(
1178                                                         'apisandbox-dynamic-error-exists', name
1179                                                 ).parse(),
1180                                                 actions: [
1181                                                         {
1182                                                                 action: 'accept',
1183                                                                 label: OO.ui.msg( 'ooui-dialog-process-dismiss' ),
1184                                                                 flags: 'primary'
1185                                                         }
1186                                                 ]
1187                                         } );
1188                                         return;
1189                                 }
1190
1191                                 widget = Util.createWidgetForParameter( {
1192                                         name: name,
1193                                         type: 'string',
1194                                         'default': ''
1195                                 }, {
1196                                         nooptional: true
1197                                 } );
1198                                 button = new OO.ui.ButtonWidget( {
1199                                         icon: 'remove',
1200                                         flags: 'destructive'
1201                                 } );
1202                                 layout = new OO.ui.ActionFieldLayout(
1203                                         widget,
1204                                         button,
1205                                         {
1206                                                 label: name,
1207                                                 align: 'left'
1208                                         }
1209                                 );
1210                                 button.on( 'click', removeDynamicParamWidget, [ name, layout ] );
1211                                 that.widgets[ name ] = widget;
1212                                 dynamicFieldset.addItems( [ layout ], dynamicFieldset.getItems().length - 1 );
1213                                 widget.focus();
1214
1215                                 dynamicParamNameWidget.setValue( '' );
1216                         };
1217
1218                 this.$element.empty()
1219                         .append( new OO.ui.ProgressBarWidget( {
1220                                 progress: false,
1221                                 text: mw.message( 'apisandbox-loading', this.displayText ).text()
1222                         } ).$element );
1223
1224                 Util.fetchModuleInfo( this.apiModule )
1225                         .done( function ( pi ) {
1226                                 var prefix, i, j, dl, widget, $widgetLabel, widgetField, helpField, tmp, flag, count,
1227                                         items = [],
1228                                         deprecatedItems = [],
1229                                         buttons = [],
1230                                         filterFmModules = function ( v ) {
1231                                                 return v.substr( -2 ) !== 'fm' ||
1232                                                         !availableFormats.hasOwnProperty( v.substr( 0, v.length - 2 ) );
1233                                         },
1234                                         widgetLabelOnClick = function () {
1235                                                 var f = this.getField();
1236                                                 if ( $.isFunction( f.setDisabled ) ) {
1237                                                         f.setDisabled( false );
1238                                                 }
1239                                                 if ( $.isFunction( f.focus ) ) {
1240                                                         f.focus();
1241                                                 }
1242                                         },
1243                                         doNothing = function () {};
1244
1245                                 // This is something of a hack. We always want the 'format' and
1246                                 // 'action' parameters from the main module to be specified,
1247                                 // and for 'format' we also want to simplify the dropdown since
1248                                 // we always send the 'fm' variant.
1249                                 if ( that.apiModule === 'main' ) {
1250                                         for ( i = 0; i < pi.parameters.length; i++ ) {
1251                                                 if ( pi.parameters[ i ].name === 'action' ) {
1252                                                         pi.parameters[ i ].required = true;
1253                                                         delete pi.parameters[ i ][ 'default' ];
1254                                                 }
1255                                                 if ( pi.parameters[ i ].name === 'format' ) {
1256                                                         tmp = pi.parameters[ i ].type;
1257                                                         for ( j = 0; j < tmp.length; j++ ) {
1258                                                                 availableFormats[ tmp[ j ] ] = true;
1259                                                         }
1260                                                         pi.parameters[ i ].type = $.grep( tmp, filterFmModules );
1261                                                         pi.parameters[ i ][ 'default' ] = 'json';
1262                                                         pi.parameters[ i ].required = true;
1263                                                 }
1264                                         }
1265                                 }
1266
1267                                 // Hide the 'wrappedhtml' parameter on format modules
1268                                 if ( pi.group === 'format' ) {
1269                                         pi.parameters = $.grep( pi.parameters, function ( p ) {
1270                                                 return p.name !== 'wrappedhtml';
1271                                         } );
1272                                 }
1273
1274                                 that.paramInfo = pi;
1275
1276                                 items.push( new OO.ui.FieldLayout(
1277                                         new OO.ui.Widget( {} ).toggle( false ), {
1278                                                 align: 'top',
1279                                                 label: Util.parseHTML( pi.description )
1280                                         }
1281                                 ) );
1282
1283                                 if ( pi.helpurls.length ) {
1284                                         buttons.push( new OO.ui.PopupButtonWidget( {
1285                                                 label: mw.message( 'apisandbox-helpurls' ).text(),
1286                                                 icon: 'help',
1287                                                 popup: {
1288                                                         $content: $( '<ul>' ).append( $.map( pi.helpurls, function ( link ) {
1289                                                                 return $( '<li>' ).append( $( '<a>', {
1290                                                                         href: link,
1291                                                                         target: '_blank',
1292                                                                         text: link
1293                                                                 } ) );
1294                                                         } ) )
1295                                                 }
1296                                         } ) );
1297                                 }
1298
1299                                 if ( pi.examples.length ) {
1300                                         buttons.push( new OO.ui.PopupButtonWidget( {
1301                                                 label: mw.message( 'apisandbox-examples' ).text(),
1302                                                 icon: 'code',
1303                                                 popup: {
1304                                                         $content: $( '<ul>' ).append( $.map( pi.examples, function ( example ) {
1305                                                                 var a = $( '<a>', {
1306                                                                         href: '#' + example.query,
1307                                                                         html: example.description
1308                                                                 } );
1309                                                                 a.find( 'a' ).contents().unwrap(); // Can't nest links
1310                                                                 return $( '<li>' ).append( a );
1311                                                         } ) )
1312                                                 }
1313                                         } ) );
1314                                 }
1315
1316                                 if ( buttons.length ) {
1317                                         items.push( new OO.ui.FieldLayout(
1318                                                 new OO.ui.ButtonGroupWidget( {
1319                                                         items: buttons
1320                                                 } ), { align: 'top' }
1321                                         ) );
1322                                 }
1323
1324                                 if ( pi.parameters.length ) {
1325                                         prefix = that.prefix + pi.prefix;
1326                                         for ( i = 0; i < pi.parameters.length; i++ ) {
1327                                                 widget = Util.createWidgetForParameter( pi.parameters[ i ] );
1328                                                 that.widgets[ prefix + pi.parameters[ i ].name ] = widget;
1329                                                 if ( pi.parameters[ i ].tokentype ) {
1330                                                         that.tokenWidget = widget;
1331                                                 }
1332
1333                                                 dl = $( '<dl>' );
1334                                                 dl.append( $( '<dd>', {
1335                                                         addClass: 'description',
1336                                                         append: Util.parseHTML( pi.parameters[ i ].description )
1337                                                 } ) );
1338                                                 if ( pi.parameters[ i ].info && pi.parameters[ i ].info.length ) {
1339                                                         for ( j = 0; j < pi.parameters[ i ].info.length; j++ ) {
1340                                                                 dl.append( $( '<dd>', {
1341                                                                         addClass: 'info',
1342                                                                         append: Util.parseHTML( pi.parameters[ i ].info[ j ] )
1343                                                                 } ) );
1344                                                         }
1345                                                 }
1346                                                 flag = true;
1347                                                 count = 1e100;
1348                                                 switch ( pi.parameters[ i ].type ) {
1349                                                         case 'namespace':
1350                                                                 flag = false;
1351                                                                 count = mw.config.get( 'wgFormattedNamespaces' ).length;
1352                                                                 break;
1353
1354                                                         case 'limit':
1355                                                                 if ( pi.parameters[ i ].highmax !== undefined ) {
1356                                                                         dl.append( $( '<dd>', {
1357                                                                                 addClass: 'info',
1358                                                                                 append: [
1359                                                                                         Util.parseHTML( mw.message(
1360                                                                                                 'api-help-param-limit2', pi.parameters[ i ].max, pi.parameters[ i ].highmax
1361                                                                                         ).parse() ),
1362                                                                                         ' ',
1363                                                                                         Util.parseHTML( mw.message( 'apisandbox-param-limit' ).parse() )
1364                                                                                 ]
1365                                                                         } ) );
1366                                                                 } else {
1367                                                                         dl.append( $( '<dd>', {
1368                                                                                 addClass: 'info',
1369                                                                                 append: [
1370                                                                                         Util.parseHTML( mw.message(
1371                                                                                                 'api-help-param-limit', pi.parameters[ i ].max
1372                                                                                         ).parse() ),
1373                                                                                         ' ',
1374                                                                                         Util.parseHTML( mw.message( 'apisandbox-param-limit' ).parse() )
1375                                                                                 ]
1376                                                                         } ) );
1377                                                                 }
1378                                                                 break;
1379
1380                                                         case 'integer':
1381                                                                 tmp = '';
1382                                                                 if ( pi.parameters[ i ].min !== undefined ) {
1383                                                                         tmp += 'min';
1384                                                                 }
1385                                                                 if ( pi.parameters[ i ].max !== undefined ) {
1386                                                                         tmp += 'max';
1387                                                                 }
1388                                                                 if ( tmp !== '' ) {
1389                                                                         dl.append( $( '<dd>', {
1390                                                                                 addClass: 'info',
1391                                                                                 append: Util.parseHTML( mw.message(
1392                                                                                         'api-help-param-integer-' + tmp,
1393                                                                                         Util.apiBool( pi.parameters[ i ].multi ) ? 2 : 1,
1394                                                                                         pi.parameters[ i ].min, pi.parameters[ i ].max
1395                                                                                 ).parse() )
1396                                                                         } ) );
1397                                                                 }
1398                                                                 break;
1399
1400                                                         default:
1401                                                                 if ( $.isArray( pi.parameters[ i ].type ) ) {
1402                                                                         flag = false;
1403                                                                         count = pi.parameters[ i ].type.length;
1404                                                                 }
1405                                                                 break;
1406                                                 }
1407                                                 if ( Util.apiBool( pi.parameters[ i ].multi ) ) {
1408                                                         tmp = [];
1409                                                         if ( flag && !( widget instanceof OO.ui.CapsuleMultiselectWidget ) &&
1410                                                                 !(
1411                                                                         widget instanceof OptionalWidget &&
1412                                                                         widget.widget instanceof OO.ui.CapsuleMultiselectWidget
1413                                                                 )
1414                                                         ) {
1415                                                                 tmp.push( mw.message( 'api-help-param-multi-separate' ).parse() );
1416                                                         }
1417                                                         if ( count > pi.parameters[ i ].lowlimit ) {
1418                                                                 tmp.push(
1419                                                                         mw.message( 'api-help-param-multi-max',
1420                                                                                 pi.parameters[ i ].lowlimit, pi.parameters[ i ].highlimit
1421                                                                         ).parse()
1422                                                                 );
1423                                                         }
1424                                                         if ( tmp.length ) {
1425                                                                 dl.append( $( '<dd>', {
1426                                                                         addClass: 'info',
1427                                                                         append: Util.parseHTML( tmp.join( ' ' ) )
1428                                                                 } ) );
1429                                                         }
1430                                                 }
1431                                                 helpField = new OO.ui.FieldLayout(
1432                                                         new OO.ui.Widget( {
1433                                                                 $content: '\xa0',
1434                                                                 classes: [ 'mw-apisandbox-spacer' ]
1435                                                         } ), {
1436                                                                 align: 'inline',
1437                                                                 classes: [ 'mw-apisandbox-help-field' ],
1438                                                                 label: dl
1439                                                         }
1440                                                 );
1441
1442                                                 $widgetLabel = $( '<span>' );
1443                                                 widgetField = new OO.ui.FieldLayout(
1444                                                         widget,
1445                                                         {
1446                                                                 align: 'left',
1447                                                                 classes: [ 'mw-apisandbox-widget-field' ],
1448                                                                 label: prefix + pi.parameters[ i ].name,
1449                                                                 $label: $widgetLabel
1450                                                         }
1451                                                 );
1452
1453                                                 // FieldLayout only does click for InputElement
1454                                                 // widgets. So supply our own click handler.
1455                                                 $widgetLabel.on( 'click', widgetLabelOnClick.bind( widgetField ) );
1456
1457                                                 // Don't grey out the label when the field is disabled,
1458                                                 // it makes it too hard to read and our "disabled"
1459                                                 // isn't really disabled.
1460                                                 widgetField.onFieldDisable( false );
1461                                                 widgetField.onFieldDisable = doNothing;
1462
1463                                                 if ( Util.apiBool( pi.parameters[ i ].deprecated ) ) {
1464                                                         deprecatedItems.push( widgetField, helpField );
1465                                                 } else {
1466                                                         items.push( widgetField, helpField );
1467                                                 }
1468                                         }
1469                                 }
1470
1471                                 if ( !pi.parameters.length && !Util.apiBool( pi.dynamicparameters ) ) {
1472                                         items.push( new OO.ui.FieldLayout(
1473                                                 new OO.ui.Widget( {} ).toggle( false ), {
1474                                                         align: 'top',
1475                                                         label: Util.parseHTML( mw.message( 'apisandbox-no-parameters' ).parse() )
1476                                                 }
1477                                         ) );
1478                                 }
1479
1480                                 that.$element.empty();
1481
1482                                 new OO.ui.FieldsetLayout( {
1483                                         label: that.displayText
1484                                 } ).addItems( items )
1485                                         .$element.appendTo( that.$element );
1486
1487                                 if ( Util.apiBool( pi.dynamicparameters ) ) {
1488                                         dynamicFieldset = new OO.ui.FieldsetLayout();
1489                                         dynamicParamNameWidget = new OO.ui.TextInputWidget( {
1490                                                 placeholder: mw.message( 'apisandbox-dynamic-parameters-add-placeholder' ).text()
1491                                         } ).on( 'enter', addDynamicParamWidget );
1492                                         dynamicFieldset.addItems( [
1493                                                 new OO.ui.FieldLayout(
1494                                                         new OO.ui.Widget( {} ).toggle( false ), {
1495                                                                 align: 'top',
1496                                                                 label: Util.parseHTML( pi.dynamicparameters )
1497                                                         }
1498                                                 ),
1499                                                 new OO.ui.ActionFieldLayout(
1500                                                         dynamicParamNameWidget,
1501                                                         new OO.ui.ButtonWidget( {
1502                                                                 icon: 'add',
1503                                                                 flags: 'progressive'
1504                                                         } ).on( 'click', addDynamicParamWidget ),
1505                                                         {
1506                                                                 label: mw.message( 'apisandbox-dynamic-parameters-add-label' ).text(),
1507                                                                 align: 'left'
1508                                                         }
1509                                                 )
1510                                         ] );
1511                                         $( '<fieldset>' )
1512                                                 .append(
1513                                                         $( '<legend>' ).text( mw.message( 'apisandbox-dynamic-parameters' ).text() ),
1514                                                         dynamicFieldset.$element
1515                                                 )
1516                                                 .appendTo( that.$element );
1517                                 }
1518
1519                                 if ( deprecatedItems.length ) {
1520                                         tmp = new OO.ui.FieldsetLayout().addItems( deprecatedItems ).toggle( false );
1521                                         $( '<fieldset>' )
1522                                                 .append(
1523                                                         $( '<legend>' ).append(
1524                                                                 new OO.ui.ToggleButtonWidget( {
1525                                                                         label: mw.message( 'apisandbox-deprecated-parameters' ).text()
1526                                                                 } ).on( 'change', tmp.toggle, [], tmp ).$element
1527                                                         ),
1528                                                         tmp.$element
1529                                                 )
1530                                                 .appendTo( that.$element );
1531                                 }
1532
1533                                 // Load stored params, if any, then update the booklet if we
1534                                 // have subpages (or else just update our valid-indicator).
1535                                 tmp = that.loadFromQueryParams;
1536                                 that.loadFromQueryParams = null;
1537                                 if ( $.isPlainObject( tmp ) ) {
1538                                         that.loadQueryParams( tmp );
1539                                 }
1540                                 if ( that.getSubpages().length > 0 ) {
1541                                         ApiSandbox.updateUI( tmp );
1542                                 } else {
1543                                         that.apiCheckValid();
1544                                 }
1545                         } ).fail( function ( code, detail ) {
1546                                 that.$element.empty()
1547                                         .append(
1548                                                 new OO.ui.LabelWidget( {
1549                                                         label: mw.message( 'apisandbox-load-error', that.apiModule, detail ).text(),
1550                                                         classes: [ 'error' ]
1551                                                 } ).$element,
1552                                                 new OO.ui.ButtonWidget( {
1553                                                         label: mw.message( 'apisandbox-retry' ).text()
1554                                                 } ).on( 'click', that.loadParamInfo, [], that ).$element
1555                                         );
1556                         } );
1557         };
1558
1559         /**
1560          * Check that all widgets on the page are in a valid state.
1561          *
1562          * @return {boolean}
1563          */
1564         ApiSandbox.PageLayout.prototype.apiCheckValid = function () {
1565                 var that = this;
1566
1567                 if ( this.paramInfo === null ) {
1568                         return $.Deferred().resolve( false ).promise();
1569                 } else {
1570                         return $.when.apply( $, $.map( this.widgets, function ( widget ) {
1571                                 return widget.apiCheckValid();
1572                         } ) ).then( function () {
1573                                 that.apiIsValid = $.inArray( false, arguments ) === -1;
1574                                 if ( that.getOutlineItem() ) {
1575                                         that.getOutlineItem().setIcon( that.apiIsValid || suppressErrors ? null : 'alert' );
1576                                         that.getOutlineItem().setIconTitle(
1577                                                 that.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
1578                                         );
1579                                 }
1580                                 return $.Deferred().resolve( that.apiIsValid ).promise();
1581                         } );
1582                 }
1583         };
1584
1585         /**
1586          * Load form fields from query parameters
1587          *
1588          * @param {Object} params
1589          */
1590         ApiSandbox.PageLayout.prototype.loadQueryParams = function ( params ) {
1591                 if ( this.paramInfo === null ) {
1592                         this.loadFromQueryParams = params;
1593                 } else {
1594                         $.each( this.widgets, function ( name, widget ) {
1595                                 var v = params.hasOwnProperty( name ) ? params[ name ] : undefined;
1596                                 widget.setApiValue( v );
1597                         } );
1598                 }
1599         };
1600
1601         /**
1602          * Load query params from form fields
1603          *
1604          * @param {Object} params Write query parameters into this object
1605          * @param {Object} displayParams Write query parameters for display into this object
1606          */
1607         ApiSandbox.PageLayout.prototype.getQueryParams = function ( params, displayParams ) {
1608                 $.each( this.widgets, function ( name, widget ) {
1609                         var value = widget.getApiValue();
1610                         if ( value !== undefined ) {
1611                                 params[ name ] = value;
1612                                 if ( $.isFunction( widget.getApiValueForDisplay ) ) {
1613                                         value = widget.getApiValueForDisplay();
1614                                 }
1615                                 displayParams[ name ] = value;
1616                         }
1617                 } );
1618         };
1619
1620         /**
1621          * Fetch a list of subpage names loaded by this page
1622          *
1623          * @return {Array}
1624          */
1625         ApiSandbox.PageLayout.prototype.getSubpages = function () {
1626                 var ret = [];
1627                 $.each( this.widgets, function ( name, widget ) {
1628                         var submodules, i;
1629                         if ( $.isFunction( widget.getSubmodules ) ) {
1630                                 submodules = widget.getSubmodules();
1631                                 for ( i = 0; i < submodules.length; i++ ) {
1632                                         ret.push( {
1633                                                 key: name + '=' + submodules[ i ].value,
1634                                                 path: submodules[ i ].path,
1635                                                 prefix: widget.paramInfo.submoduleparamprefix || ''
1636                                         } );
1637                                 }
1638                         }
1639                 } );
1640                 return ret;
1641         };
1642
1643         /**
1644          * A text input with a clickable indicator
1645          *
1646          * @class
1647          * @private
1648          * @constructor
1649          * @param {Object} [config] Configuration options
1650          */
1651         function TextInputWithIndicatorWidget( config ) {
1652                 var k;
1653
1654                 config = config || {};
1655                 TextInputWithIndicatorWidget[ 'super' ].call( this, config );
1656
1657                 this.$indicator = $( '<span>' ).addClass( 'mw-apisandbox-clickable-indicator' );
1658                 OO.ui.mixin.TabIndexedElement.call(
1659                         this, $.extend( {}, config, { $tabIndexed: this.$indicator } )
1660                 );
1661
1662                 this.input = new OO.ui.TextInputWidget( $.extend( {
1663                         $indicator: this.$indicator,
1664                         disabled: this.isDisabled()
1665                 }, config.input ) );
1666
1667                 // Forward most methods for convenience
1668                 for ( k in this.input ) {
1669                         if ( $.isFunction( this.input[ k ] ) && !this[ k ] ) {
1670                                 this[ k ] = this.input[ k ].bind( this.input );
1671                         }
1672                 }
1673
1674                 this.$indicator.on( {
1675                         click: this.onIndicatorClick.bind( this ),
1676                         keypress: this.onIndicatorKeyPress.bind( this )
1677                 } );
1678
1679                 this.$element.append( this.input.$element );
1680         }
1681         OO.inheritClass( TextInputWithIndicatorWidget, OO.ui.Widget );
1682         OO.mixinClass( TextInputWithIndicatorWidget, OO.ui.mixin.TabIndexedElement );
1683         TextInputWithIndicatorWidget.prototype.onIndicatorClick = function ( e ) {
1684                 if ( !this.isDisabled() && e.which === 1 ) {
1685                         this.emit( 'indicator' );
1686                 }
1687                 return false;
1688         };
1689         TextInputWithIndicatorWidget.prototype.onIndicatorKeyPress = function ( e ) {
1690                 if ( !this.isDisabled() && ( e.which === OO.ui.Keys.SPACE || e.which === OO.ui.Keys.ENTER ) ) {
1691                         this.emit( 'indicator' );
1692                         return false;
1693                 }
1694         };
1695         TextInputWithIndicatorWidget.prototype.setDisabled = function ( disabled ) {
1696                 TextInputWithIndicatorWidget[ 'super' ].prototype.setDisabled.call( this, disabled );
1697                 if ( this.input ) {
1698                         this.input.setDisabled( this.isDisabled() );
1699                 }
1700                 return this;
1701         };
1702
1703         /**
1704          * A wrapper for a widget that provides an enable/disable button
1705          *
1706          * @class
1707          * @private
1708          * @constructor
1709          * @param {OO.ui.Widget} widget
1710          * @param {Object} [config] Configuration options
1711          */
1712         function OptionalWidget( widget, config ) {
1713                 var k;
1714
1715                 config = config || {};
1716
1717                 this.widget = widget;
1718                 this.$overlay = config.$overlay ||
1719                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-overlay' );
1720                 this.checkbox = new OO.ui.CheckboxInputWidget( config.checkbox )
1721                         .on( 'change', this.onCheckboxChange, [], this );
1722
1723                 OptionalWidget[ 'super' ].call( this, config );
1724
1725                 // Forward most methods for convenience
1726                 for ( k in this.widget ) {
1727                         if ( $.isFunction( this.widget[ k ] ) && !this[ k ] ) {
1728                                 this[ k ] = this.widget[ k ].bind( this.widget );
1729                         }
1730                 }
1731
1732                 this.$overlay.on( 'click', this.onOverlayClick.bind( this ) );
1733
1734                 this.$element
1735                         .addClass( 'mw-apisandbox-optionalWidget' )
1736                         .append(
1737                                 this.$overlay,
1738                                 $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-fields' ).append(
1739                                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-widget' ).append(
1740                                                 widget.$element
1741                                         ),
1742                                         $( '<div>' ).addClass( 'mw-apisandbox-optionalWidget-checkbox' ).append(
1743                                                 this.checkbox.$element
1744                                         )
1745                                 )
1746                         );
1747
1748                 this.setDisabled( widget.isDisabled() );
1749         }
1750         OO.inheritClass( OptionalWidget, OO.ui.Widget );
1751         OptionalWidget.prototype.onCheckboxChange = function ( checked ) {
1752                 this.setDisabled( !checked );
1753         };
1754         OptionalWidget.prototype.onOverlayClick = function () {
1755                 this.setDisabled( false );
1756                 if ( $.isFunction( this.widget.focus ) ) {
1757                         this.widget.focus();
1758                 }
1759         };
1760         OptionalWidget.prototype.setDisabled = function ( disabled ) {
1761                 OptionalWidget[ 'super' ].prototype.setDisabled.call( this, disabled );
1762                 this.widget.setDisabled( this.isDisabled() );
1763                 this.checkbox.setSelected( !this.isDisabled() );
1764                 this.$overlay.toggle( this.isDisabled() );
1765                 return this;
1766         };
1767
1768         $( ApiSandbox.init );
1769
1770         module.exports = ApiSandbox;
1771
1772 }( jQuery, mediaWiki, OO ) );