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