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