resources/src/mediawiki.rcfilters/ui/mw.rcfilters.ui.FilterTagMultiselectWidget.js

   1 ( function ( mw ) {
   2         /**
   3          * List displaying all filter groups
   4          *
   5          * @class
   6          * @extends OO.ui.MenuTagMultiselectWidget
   7          * @mixins OO.ui.mixin.PendingElement
   8          *
   9          * @constructor
  10          * @param {mw.rcfilters.Controller} controller Controller
  11          * @param {mw.rcfilters.dm.FiltersViewModel} model View model
  12          * @param {mw.rcfilters.dm.SavedQueriesModel} savedQueriesModel Saved queries model
  13          * @param {Object} config Configuration object
  14          * @cfg {jQuery} [$overlay] A jQuery object serving as overlay for popups
  15          */
  16         mw.rcfilters.ui.FilterTagMultiselectWidget = function MwRcfiltersUiFilterTagMultiselectWidget( controller, model, savedQueriesModel, config ) {
  17                 var rcFiltersRow,
  18                         title = new OO.ui.LabelWidget( {
  19                                 label: mw.msg( 'rcfilters-activefilters' ),
  20                                 classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-content-title' ]
  21                         } ),
  22                         $contentWrapper = $( '<div>' )
  23                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper' );
  24
  25                 config = config || {};
  26
  27                 this.controller = controller;
  28                 this.model = model;
  29                 this.queriesModel = savedQueriesModel;
  30                 this.$overlay = config.$overlay || this.$element;
  31                 this.matchingQuery = null;
  32                 this.currentView = this.model.getCurrentView();
  33
  34                 // Parent
  35                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.call( this, $.extend( true, {
  36                         label: mw.msg( 'rcfilters-filterlist-title' ),
  37                         placeholder: mw.msg( 'rcfilters-empty-filter' ),
  38                         inputPosition: 'outline',
  39                         allowArbitrary: false,
  40                         allowDisplayInvalidTags: false,
  41                         allowReordering: false,
  42                         $overlay: this.$overlay,
  43                         menu: {
  44                                 hideWhenOutOfView: false,
  45                                 hideOnChoose: false,
  46                                 width: 650,
  47                                 footers: [
  48                                         {
  49                                                 name: 'viewSelect',
  50                                                 sticky: false,
  51                                                 // View select menu, appears on default view only
  52                                                 $element: $( '<div>' )
  53                                                         .append( new mw.rcfilters.ui.ViewSwitchWidget( this.controller, this.model ).$element ),
  54                                                 views: [ 'default' ]
  55                                         },
  56                                         {
  57                                                 name: 'feedback',
  58                                                 // Feedback footer, appears on all views
  59                                                 $element: $( '<div>' )
  60                                                         .append(
  61                                                                 new OO.ui.ButtonWidget( {
  62                                                                         framed: false,
  63                                                                         icon: 'feedback',
  64                                                                         flags: [ 'progressive' ],
  65                                                                         label: mw.msg( 'rcfilters-filterlist-feedbacklink' ),
  66                                                                         href: 'https://www.mediawiki.org/wiki/Help_talk:New_filters_for_edit_review'
  67                                                                 } ).$element
  68                                                         )
  69                                         }
  70                                 ]
  71                         },
  72                         input: {
  73                                 icon: 'menu',
  74                                 placeholder: mw.msg( 'rcfilters-search-placeholder' )
  75                         }
  76                 }, config ) );
  77
  78                 this.savedQueryTitle = new OO.ui.LabelWidget( {
  79                         label: '',
  80                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-content-savedQueryTitle' ]
  81                 } );
  82
  83                 this.resetButton = new OO.ui.ButtonWidget( {
  84                         framed: false,
  85                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-resetButton' ]
  86                 } );
  87
  88                 this.saveQueryButton = new mw.rcfilters.ui.SaveFiltersPopupButtonWidget(
  89                         this.controller,
  90                         this.queriesModel
  91                 );
  92
  93                 this.saveQueryButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
  94
  95                 this.saveQueryButton.connect( this, {
  96                         click: 'onSaveQueryButtonClick',
  97                         saveCurrent: 'setSavedQueryVisibility'
  98                 } );
  99
 100                 this.emptyFilterMessage = new OO.ui.LabelWidget( {
 101                         label: mw.msg( 'rcfilters-empty-filter' ),
 102                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-emptyFilters' ]
 103                 } );
 104                 this.$content.append( this.emptyFilterMessage.$element );
 105
 106                 // Events
 107                 this.resetButton.connect( this, { click: 'onResetButtonClick' } );
 108                 // Stop propagation for mousedown, so that the widget doesn't
 109                 // trigger the focus on the input and scrolls up when we click the reset button
 110                 this.resetButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
 111                 this.model.connect( this, {
 112                         initialize: 'onModelInitialize',
 113                         update: 'onModelUpdate',
 114                         itemUpdate: 'onModelItemUpdate',
 115                         highlightChange: 'onModelHighlightChange'
 116                 } );
 117                 this.input.connect( this, { change: 'onInputChange' } );
 118                 this.queriesModel.connect( this, { itemUpdate: 'onSavedQueriesItemUpdate' } );
 119
 120                 // The filter list and button should appear side by side regardless of how
 121                 // wide the button is; the button also changes its width depending
 122                 // on language and its state, so the safest way to present both side
 123                 // by side is with a table layout
 124                 rcFiltersRow = $( '<div>' )
 125                         .addClass( 'mw-rcfilters-ui-row' )
 126                         .append(
 127                                 this.$content
 128                                         .addClass( 'mw-rcfilters-ui-cell' )
 129                                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-filters' )
 130                         );
 131
 132                 rcFiltersRow.append(
 133                         $( '<div>' )
 134                                 .addClass( 'mw-rcfilters-ui-cell' )
 135                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-save' )
 136                                 .append( this.saveQueryButton.$element )
 137                 );
 138
 139                 // Add a selector at the right of the input
 140                 this.viewsSelectWidget = new OO.ui.ButtonSelectWidget( {
 141                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select-widget' ],
 142                         items: [
 143                                 new OO.ui.ButtonOptionWidget( {
 144                                         framed: false,
 145                                         data: '',
 146                                         disabled: true,
 147                                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select-widget-label' ],
 148                                         label: mw.msg( 'rcfilters-view-advanced-filters-label' )
 149                                 } ),
 150                                 new OO.ui.ButtonOptionWidget( {
 151                                         framed: false,
 152                                         data: 'namespaces',
 153                                         icon: 'article',
 154                                         title: mw.msg( 'rcfilters-view-namespaces-tooltip' )
 155                                 } ),
 156                                 new OO.ui.ButtonOptionWidget( {
 157                                         framed: false,
 158                                         data: 'tags',
 159                                         icon: 'tag',
 160                                         title: mw.msg( 'rcfilters-view-tags-tooltip' )
 161                                 } )
 162                         ]
 163                 } );
 164
 165                 // Rearrange the UI so the select widget is at the right of the input
 166                 this.$element.append(
 167                         $( '<div>' )
 168                                 .addClass( 'mw-rcfilters-ui-table' )
 169                                 .append(
 170                                         $( '<div>' )
 171                                                 .addClass( 'mw-rcfilters-ui-row' )
 172                                                 .append(
 173                                                         $( '<div>' )
 174                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 175                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-input' )
 176                                                                 .append( this.input.$element ),
 177                                                         $( '<div>' )
 178                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 179                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select' )
 180                                                                 .append( this.viewsSelectWidget.$element )
 181                                                 )
 182                                 )
 183                 );
 184
 185                 // Event
 186                 this.viewsSelectWidget.connect( this, { choose: 'onViewsSelectWidgetChoose' } );
 187
 188                 rcFiltersRow.append(
 189                         $( '<div>' )
 190                                 .addClass( 'mw-rcfilters-ui-cell' )
 191                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-reset' )
 192                                 .append( this.resetButton.$element )
 193                 );
 194
 195                 // Build the content
 196                 $contentWrapper.append(
 197                         title.$element,
 198                         this.savedQueryTitle.$element,
 199                         $( '<div>' )
 200                                 .addClass( 'mw-rcfilters-ui-table' )
 201                                 .append(
 202                                         rcFiltersRow
 203                                 )
 204                 );
 205
 206                 // Initialize
 207                 this.$handle.append( $contentWrapper );
 208                 this.emptyFilterMessage.toggle( this.isEmpty() );
 209                 this.savedQueryTitle.toggle( false );
 210
 211                 this.$element
 212                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget' );
 213
 214                 this.reevaluateResetRestoreState();
 215         };
 216
 217         /* Initialization */
 218
 219         OO.inheritClass( mw.rcfilters.ui.FilterTagMultiselectWidget, OO.ui.MenuTagMultiselectWidget );
 220
 221         /* Methods */
 222
 223         /**
 224          * Respond to view select widget choose event
 225          *
 226          * @param {OO.ui.ButtonOptionWidget} buttonOptionWidget Chosen widget
 227          */
 228         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onViewsSelectWidgetChoose = function ( buttonOptionWidget ) {
 229                 this.controller.switchView( buttonOptionWidget.getData() );
 230                 this.viewsSelectWidget.selectItem( null );
 231                 this.focus();
 232         };
 233
 234         /**
 235          * Respond to input change event
 236          *
 237          * @param {string} value Value of the input
 238          */
 239         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputChange = function ( value ) {
 240                 var view;
 241
 242                 value = value.trim();
 243
 244                 view = this.model.getViewByTrigger( value.substr( 0, 1 ) );
 245
 246                 this.controller.switchView( view );
 247         };
 248         /**
 249          * Respond to query button click
 250          */
 251         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSaveQueryButtonClick = function () {
 252                 this.getMenu().toggle( false );
 253         };
 254
 255         /**
 256          * Respond to save query item change. Mainly this is done to update the label in case
 257          * a query item has been edited
 258          *
 259          * @param {mw.rcfilters.dm.SavedQueryItemModel} item Saved query item
 260          */
 261         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSavedQueriesItemUpdate = function ( item ) {
 262                 if ( this.matchingQuery === item ) {
 263                         // This means we just edited the item that is currently matched
 264                         this.savedQueryTitle.setLabel( item.getLabel() );
 265                 }
 266         };
 267
 268         /**
 269          * Respond to menu toggle
 270          *
 271          * @param {boolean} isVisible Menu is visible
 272          */
 273         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuToggle = function ( isVisible ) {
 274                 // Parent
 275                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onMenuToggle.call( this );
 276
 277                 if ( isVisible ) {
 278                         mw.hook( 'RcFilters.popup.open' ).fire();
 279
 280                         if ( !this.getMenu().getSelectedItem() ) {
 281                                 // If there are no selected items, scroll menu to top
 282                                 // This has to be in a setTimeout so the menu has time
 283                                 // to be positioned and fixed
 284                                 setTimeout( function () { this.getMenu().scrollToTop(); }.bind( this ), 0 );
 285                         }
 286                 } else {
 287                         // Clear selection
 288                         this.selectTag( null );
 289
 290                         // Clear input if the only thing in the input is the prefix
 291                         if (
 292                                 this.input.getValue().trim() === this.model.getViewTrigger( this.model.getCurrentView() )
 293                         ) {
 294                                 // Clear the input
 295                                 this.input.setValue( '' );
 296                         }
 297
 298                         // Log filter grouping
 299                         this.controller.trackFilterGroupings( 'filtermenu' );
 300                 }
 301
 302                 this.input.setIcon( isVisible ? 'search' : 'menu' );
 303         };
 304
 305         /**
 306          * @inheritdoc
 307          */
 308         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputFocus = function () {
 309                 // Parent
 310                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onInputFocus.call( this );
 311
 312                 // Scroll to top
 313                 this.scrollToTop( this.$element );
 314         };
 315
 316         /**
 317          * @inheritdoc
 318          */
 319         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.doInputEscape = function () {
 320                 // Parent
 321                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.doInputEscape.call( this );
 322
 323                 // Blur the input
 324                 this.input.$input.blur();
 325         };
 326
 327         /**
 328          * @inheritdoc
 329          */
 330         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onChangeTags = function () {
 331                 // Parent method
 332                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onChangeTags.call( this );
 333
 334                 this.emptyFilterMessage.toggle( this.isEmpty() );
 335         };
 336
 337         /**
 338          * Respond to model initialize event
 339          */
 340         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelInitialize = function () {
 341                 this.setSavedQueryVisibility();
 342         };
 343
 344         /**
 345          * Respond to model update event
 346          */
 347         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelUpdate = function () {
 348                 this.updateElementsForView();
 349         };
 350
 351         /**
 352          * Update the elements in the widget to the current view
 353          */
 354         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.updateElementsForView = function () {
 355                 var view = this.model.getCurrentView(),
 356                         inputValue = this.input.getValue().trim(),
 357                         inputView = this.model.getViewByTrigger( inputValue.substr( 0, 1 ) );
 358
 359                 if ( inputView !== 'default' ) {
 360                         // We have a prefix already, remove it
 361                         inputValue = inputValue.substr( 1 );
 362                 }
 363
 364                 if ( inputView !== view ) {
 365                         // Add the correct prefix
 366                         inputValue = this.model.getViewTrigger( view ) + inputValue;
 367                 }
 368
 369                 // Update input
 370                 this.input.setValue( inputValue );
 371
 372                 if ( this.currentView !== view ) {
 373                         this.scrollToTop( this.$element );
 374                         this.currentView = view;
 375                 }
 376         };
 377
 378         /**
 379          * Set the visibility of the saved query button
 380          */
 381         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.setSavedQueryVisibility = function () {
 382                 this.matchingQuery = this.controller.findQueryMatchingCurrentState();
 383
 384                 this.savedQueryTitle.setLabel(
 385                         this.matchingQuery ? this.matchingQuery.getLabel() : ''
 386                 );
 387                 this.savedQueryTitle.toggle( !!this.matchingQuery );
 388                 this.saveQueryButton.toggle(
 389                         !this.isEmpty() &&
 390                         !this.matchingQuery
 391                 );
 392
 393                 if ( this.matchingQuery ) {
 394                         this.emphasize();
 395                 }
 396         };
 397
 398         /**
 399          * Respond to model itemUpdate event
 400          *
 401          * @param {mw.rcfilters.dm.FilterItem} item Filter item model
 402          */
 403         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelItemUpdate = function ( item ) {
 404                 if ( item.getGroupModel().isHidden() ) {
 405                         return;
 406                 }
 407
 408                 if (
 409                         item.isSelected() ||
 410                         (
 411                                 this.model.isHighlightEnabled() &&
 412                                 item.isHighlightSupported() &&
 413                                 item.getHighlightColor()
 414                         )
 415                 ) {
 416                         this.addTag( item.getName(), item.getLabel() );
 417                 } else {
 418                         this.removeTagByData( item.getName() );
 419                 }
 420
 421                 this.setSavedQueryVisibility();
 422
 423                 // Re-evaluate reset state
 424                 this.reevaluateResetRestoreState();
 425         };
 426
 427         /**
 428          * @inheritdoc
 429          */
 430         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.isAllowedData = function ( data ) {
 431                 return (
 432                         this.model.getItemByName( data ) &&
 433                         !this.isDuplicateData( data )
 434                 );
 435         };
 436
 437         /**
 438          * @inheritdoc
 439          */
 440         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuChoose = function ( item ) {
 441                 this.controller.toggleFilterSelect( item.model.getName() );
 442
 443                 // Select the tag if it exists, or reset selection otherwise
 444                 this.selectTag( this.getItemFromData( item.model.getName() ) );
 445
 446                 this.focus();
 447         };
 448
 449         /**
 450          * Respond to highlightChange event
 451          *
 452          * @param {boolean} isHighlightEnabled Highlight is enabled
 453          */
 454         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelHighlightChange = function ( isHighlightEnabled ) {
 455                 var highlightedItems = this.model.getHighlightedItems();
 456
 457                 if ( isHighlightEnabled ) {
 458                         // Add capsule widgets
 459                         highlightedItems.forEach( function ( filterItem ) {
 460                                 this.addTag( filterItem.getName(), filterItem.getLabel() );
 461                         }.bind( this ) );
 462                 } else {
 463                         // Remove capsule widgets if they're not selected
 464                         highlightedItems.forEach( function ( filterItem ) {
 465                                 if ( !filterItem.isSelected() ) {
 466                                         this.removeTagByData( filterItem.getName() );
 467                                 }
 468                         }.bind( this ) );
 469                 }
 470         };
 471
 472         /**
 473          * @inheritdoc
 474          */
 475         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagSelect = function ( tagItem ) {
 476                 var widget = this,
 477                         menuOption = this.menu.getItemFromModel( tagItem.getModel() ),
 478                         oldInputValue = this.input.getValue().trim();
 479
 480                 this.menu.setUserSelecting( true );
 481
 482                 // Reset input
 483                 this.input.setValue( '' );
 484
 485                 // Switch view
 486                 this.controller.switchView( tagItem.getView() );
 487
 488                 // Parent method
 489                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagSelect.call( this, tagItem );
 490
 491                 this.menu.selectItem( menuOption );
 492                 this.selectTag( tagItem );
 493
 494                 // Scroll to the item
 495                 if ( this.model.removeViewTriggers( oldInputValue ) ) {
 496                         // We're binding a 'once' to the itemVisibilityChange event
 497                         // so this happens when the menu is ready after the items
 498                         // are visible again, in case this is done right after the
 499                         // user filtered the results
 500                         this.getMenu().once(
 501                                 'itemVisibilityChange',
 502                                 function () {
 503                                         widget.scrollToTop( menuOption.$element );
 504                                         widget.menu.setUserSelecting( false );
 505                                 }
 506                         );
 507                 } else {
 508                         this.scrollToTop( menuOption.$element );
 509                         this.menu.setUserSelecting( false );
 510                 }
 511
 512         };
 513
 514         /**
 515          * Select a tag by reference. This is what OO.ui.SelectWidget is doing.
 516          * If no items are given, reset selection from all.
 517          *
 518          * @param {mw.rcfilters.ui.FilterTagItemWidget} [item] Tag to select,
 519          *  omit to deselect all
 520          */
 521         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.selectTag = function ( item ) {
 522                 var i, len, selected;
 523
 524                 for ( i = 0, len = this.items.length; i < len; i++ ) {
 525                         selected = this.items[ i ] === item;
 526                         if ( this.items[ i ].isSelected() !== selected ) {
 527                                 this.items[ i ].toggleSelected( selected );
 528                         }
 529                 }
 530         };
 531         /**
 532          * @inheritdoc
 533          */
 534         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagRemove = function ( tagItem ) {
 535                 // Parent method
 536                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagRemove.call( this, tagItem );
 537
 538                 this.controller.clearFilter( tagItem.getName() );
 539
 540                 tagItem.destroy();
 541         };
 542
 543         /**
 544          * Respond to click event on the reset button
 545          */
 546         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onResetButtonClick = function () {
 547                 if ( this.model.areCurrentFiltersEmpty() ) {
 548                         // Reset to default filters
 549                         this.controller.resetToDefaults();
 550                 } else {
 551                         // Reset to have no filters
 552                         this.controller.emptyFilters();
 553                 }
 554         };
 555
 556         /**
 557          * Reevaluate the restore state for the widget between setting to defaults and clearing all filters
 558          */
 559         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.reevaluateResetRestoreState = function () {
 560                 var defaultsAreEmpty = this.model.areDefaultFiltersEmpty(),
 561                         currFiltersAreEmpty = this.model.areCurrentFiltersEmpty(),
 562                         hideResetButton = currFiltersAreEmpty && defaultsAreEmpty;
 563
 564                 this.resetButton.setIcon(
 565                         currFiltersAreEmpty ? 'history' : 'trash'
 566                 );
 567
 568                 this.resetButton.setLabel(
 569                         currFiltersAreEmpty ? mw.msg( 'rcfilters-restore-default-filters' ) : ''
 570                 );
 571                 this.resetButton.setTitle(
 572                         currFiltersAreEmpty ? null : mw.msg( 'rcfilters-clear-all-filters' )
 573                 );
 574
 575                 this.resetButton.toggle( !hideResetButton );
 576                 this.emptyFilterMessage.toggle( currFiltersAreEmpty );
 577         };
 578
 579         /**
 580          * @inheritdoc
 581          */
 582         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createMenuWidget = function ( menuConfig ) {
 583                 return new mw.rcfilters.ui.MenuSelectWidget(
 584                         this.controller,
 585                         this.model,
 586                         $.extend( {
 587                                 filterFromInput: true
 588                         }, menuConfig )
 589                 );
 590         };
 591
 592         /**
 593          * @inheritdoc
 594          */
 595         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createTagItemWidget = function ( data ) {
 596                 var filterItem = this.model.getItemByName( data );
 597
 598                 if ( filterItem ) {
 599                         return new mw.rcfilters.ui.FilterTagItemWidget(
 600                                 this.controller,
 601                                 filterItem,
 602                                 {
 603                                         $overlay: this.$overlay
 604                                 }
 605                         );
 606                 }
 607         };
 608
 609         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.emphasize = function () {
 610                 if (
 611                         !this.$handle.hasClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' )
 612                 ) {
 613                         this.$handle
 614                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' )
 615                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 616
 617                         setTimeout( function () {
 618                                 this.$handle
 619                                         .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' );
 620
 621                                 setTimeout( function () {
 622                                         this.$handle
 623                                                 .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 624                                 }.bind( this ), 1000 );
 625                         }.bind( this ), 500 );
 626
 627                 }
 628         };
 629         /**
 630          * Scroll the element to top within its container
 631          *
 632          * @private
 633          * @param {jQuery} $element Element to position
 634          * @param {number} [marginFromTop] When scrolling the entire widget to the top, leave this
 635          *  much space (in pixels) above the widget.
 636          */
 637         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.scrollToTop = function ( $element, marginFromTop ) {
 638                 var container = OO.ui.Element.static.getClosestScrollableContainer( $element[ 0 ], 'y' ),
 639                         pos = OO.ui.Element.static.getRelativePosition( $element, $( container ) ),
 640                         containerScrollTop = $( container ).is( 'body, html' ) ? 0 : $( container ).scrollTop();
 641
 642                 // Scroll to item
 643                 $( container ).animate( {
 644                         scrollTop: containerScrollTop + pos.top - ( marginFromTop || 0 )
 645                 } );
 646         };
 647 }( mediaWiki ) );