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                 if ( !mw.user.isAnon() ) {
  89                         this.saveQueryButton = new mw.rcfilters.ui.SaveFiltersPopupButtonWidget(
  90                                 this.controller,
  91                                 this.queriesModel
  92                         );
  93
  94                         this.saveQueryButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
  95
  96                         this.saveQueryButton.connect( this, {
  97                                 click: 'onSaveQueryButtonClick',
  98                                 saveCurrent: 'setSavedQueryVisibility'
  99                         } );
 100                         this.queriesModel.connect( this, {
 101                                 itemUpdate: 'onSavedQueriesItemUpdate',
 102                                 initialize: 'onSavedQueriesInitialize',
 103                                 'default': 'reevaluateResetRestoreState'
 104                         } );
 105                 }
 106
 107                 this.emptyFilterMessage = new OO.ui.LabelWidget( {
 108                         label: mw.msg( 'rcfilters-empty-filter' ),
 109                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-emptyFilters' ]
 110                 } );
 111                 this.$content.append( this.emptyFilterMessage.$element );
 112
 113                 // Events
 114                 this.resetButton.connect( this, { click: 'onResetButtonClick' } );
 115                 // Stop propagation for mousedown, so that the widget doesn't
 116                 // trigger the focus on the input and scrolls up when we click the reset button
 117                 this.resetButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
 118                 this.model.connect( this, {
 119                         initialize: 'onModelInitialize',
 120                         update: 'onModelUpdate',
 121                         itemUpdate: 'onModelItemUpdate',
 122                         highlightChange: 'onModelHighlightChange'
 123                 } );
 124                 this.input.connect( this, { change: 'onInputChange' } );
 125
 126                 // The filter list and button should appear side by side regardless of how
 127                 // wide the button is; the button also changes its width depending
 128                 // on language and its state, so the safest way to present both side
 129                 // by side is with a table layout
 130                 rcFiltersRow = $( '<div>' )
 131                         .addClass( 'mw-rcfilters-ui-row' )
 132                         .append(
 133                                 this.$content
 134                                         .addClass( 'mw-rcfilters-ui-cell' )
 135                                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-filters' )
 136                         );
 137
 138                 if ( !mw.user.isAnon() ) {
 139                         rcFiltersRow.append(
 140                                 $( '<div>' )
 141                                         .addClass( 'mw-rcfilters-ui-cell' )
 142                                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-save' )
 143                                         .append( this.saveQueryButton.$element )
 144                         );
 145                 }
 146
 147                 // Add a selector at the right of the input
 148                 this.viewsSelectWidget = new OO.ui.ButtonSelectWidget( {
 149                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select-widget' ],
 150                         items: [
 151                                 new OO.ui.ButtonOptionWidget( {
 152                                         framed: false,
 153                                         data: 'namespaces',
 154                                         icon: 'article',
 155                                         label: mw.msg( 'namespaces' ),
 156                                         title: mw.msg( 'rcfilters-view-namespaces-tooltip' )
 157                                 } ),
 158                                 new OO.ui.ButtonOptionWidget( {
 159                                         framed: false,
 160                                         data: 'tags',
 161                                         icon: 'tag',
 162                                         label: mw.msg( 'tags-title' ),
 163                                         title: mw.msg( 'rcfilters-view-tags-tooltip' )
 164                                 } )
 165                         ]
 166                 } );
 167
 168                 // Rearrange the UI so the select widget is at the right of the input
 169                 this.$element.append(
 170                         $( '<div>' )
 171                                 .addClass( 'mw-rcfilters-ui-table' )
 172                                 .append(
 173                                         $( '<div>' )
 174                                                 .addClass( 'mw-rcfilters-ui-row' )
 175                                                 .append(
 176                                                         $( '<div>' )
 177                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 178                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-input' )
 179                                                                 .append( this.input.$element ),
 180                                                         $( '<div>' )
 181                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 182                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select' )
 183                                                                 .append( this.viewsSelectWidget.$element )
 184                                                 )
 185                                 )
 186                 );
 187
 188                 // Event
 189                 this.viewsSelectWidget.connect( this, { choose: 'onViewsSelectWidgetChoose' } );
 190
 191                 rcFiltersRow.append(
 192                         $( '<div>' )
 193                                 .addClass( 'mw-rcfilters-ui-cell' )
 194                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-reset' )
 195                                 .append( this.resetButton.$element )
 196                 );
 197
 198                 // Build the content
 199                 $contentWrapper.append(
 200                         title.$element,
 201                         this.savedQueryTitle.$element,
 202                         $( '<div>' )
 203                                 .addClass( 'mw-rcfilters-ui-table' )
 204                                 .append(
 205                                         rcFiltersRow
 206                                 )
 207                 );
 208
 209                 // Initialize
 210                 this.$handle.append( $contentWrapper );
 211                 this.emptyFilterMessage.toggle( this.isEmpty() );
 212                 this.savedQueryTitle.toggle( false );
 213
 214                 this.$element
 215                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget' );
 216
 217                 this.reevaluateResetRestoreState();
 218         };
 219
 220         /* Initialization */
 221
 222         OO.inheritClass( mw.rcfilters.ui.FilterTagMultiselectWidget, OO.ui.MenuTagMultiselectWidget );
 223
 224         /* Methods */
 225
 226         /**
 227          * Respond to view select widget choose event
 228          *
 229          * @param {OO.ui.ButtonOptionWidget} buttonOptionWidget Chosen widget
 230          */
 231         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onViewsSelectWidgetChoose = function ( buttonOptionWidget ) {
 232                 this.controller.switchView( buttonOptionWidget.getData() );
 233                 this.viewsSelectWidget.selectItem( null );
 234                 this.focus();
 235         };
 236
 237         /**
 238          * Respond to input change event
 239          *
 240          * @param {string} value Value of the input
 241          */
 242         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputChange = function ( value ) {
 243                 var view;
 244
 245                 value = value.trim();
 246
 247                 view = this.model.getViewByTrigger( value.substr( 0, 1 ) );
 248
 249                 this.controller.switchView( view );
 250         };
 251         /**
 252          * Respond to query button click
 253          */
 254         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSaveQueryButtonClick = function () {
 255                 this.getMenu().toggle( false );
 256         };
 257
 258         /**
 259          * Respond to save query model initialization
 260          */
 261         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSavedQueriesInitialize = function () {
 262                 this.setSavedQueryVisibility();
 263         };
 264
 265         /**
 266          * Respond to save query item change. Mainly this is done to update the label in case
 267          * a query item has been edited
 268          *
 269          * @param {mw.rcfilters.dm.SavedQueryItemModel} item Saved query item
 270          */
 271         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSavedQueriesItemUpdate = function ( item ) {
 272                 if ( this.matchingQuery === item ) {
 273                         // This means we just edited the item that is currently matched
 274                         this.savedQueryTitle.setLabel( item.getLabel() );
 275                 }
 276         };
 277
 278         /**
 279          * Respond to menu toggle
 280          *
 281          * @param {boolean} isVisible Menu is visible
 282          */
 283         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuToggle = function ( isVisible ) {
 284                 // Parent
 285                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onMenuToggle.call( this );
 286
 287                 if ( isVisible ) {
 288                         this.focus();
 289
 290                         mw.hook( 'RcFilters.popup.open' ).fire();
 291
 292                         if ( !this.getMenu().getSelectedItem() ) {
 293                                 // If there are no selected items, scroll menu to top
 294                                 // This has to be in a setTimeout so the menu has time
 295                                 // to be positioned and fixed
 296                                 setTimeout( function () { this.getMenu().scrollToTop(); }.bind( this ), 0 );
 297                         }
 298                 } else {
 299                         this.blur();
 300
 301                         // Clear selection
 302                         this.selectTag( null );
 303
 304                         // Clear input if the only thing in the input is the prefix
 305                         if (
 306                                 this.input.getValue().trim() === this.model.getViewTrigger( this.model.getCurrentView() )
 307                         ) {
 308                                 // Clear the input
 309                                 this.input.setValue( '' );
 310                         }
 311
 312                         // Log filter grouping
 313                         this.controller.trackFilterGroupings( 'filtermenu' );
 314                 }
 315
 316                 this.input.setIcon( isVisible ? 'search' : 'menu' );
 317         };
 318
 319         /**
 320          * @inheritdoc
 321          */
 322         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputFocus = function () {
 323                 // Parent
 324                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onInputFocus.call( this );
 325
 326                 // Only scroll to top of the viewport if:
 327                 // - The widget is more than 20px from the top
 328                 // - The widget is not above the top of the viewport (do not scroll downwards)
 329                 //   (This isn't represented because >20 is, anyways and always, bigger than 0)
 330                 this.scrollToTop( this.$element, 0, { min: 20, max: Infinity } );
 331         };
 332
 333         /**
 334          * @inheritdoc
 335          */
 336         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.doInputEscape = function () {
 337                 // Parent
 338                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.doInputEscape.call( this );
 339
 340                 // Blur the input
 341                 this.input.$input.blur();
 342         };
 343
 344         /**
 345          * @inheritdoc
 346          */
 347         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMouseDown = function ( e ) {
 348                 if ( !this.isDisabled() && e.which === OO.ui.MouseButtons.LEFT ) {
 349                         this.menu.toggle();
 350
 351                         return false;
 352                 }
 353         };
 354
 355         /**
 356          * @inheritdoc
 357          */
 358         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onChangeTags = function () {
 359                 // Parent method
 360                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onChangeTags.call( this );
 361
 362                 this.emptyFilterMessage.toggle( this.isEmpty() );
 363         };
 364
 365         /**
 366          * Respond to model initialize event
 367          */
 368         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelInitialize = function () {
 369                 this.setSavedQueryVisibility();
 370         };
 371
 372         /**
 373          * Respond to model update event
 374          */
 375         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelUpdate = function () {
 376                 this.updateElementsForView();
 377         };
 378
 379         /**
 380          * Update the elements in the widget to the current view
 381          */
 382         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.updateElementsForView = function () {
 383                 var view = this.model.getCurrentView(),
 384                         inputValue = this.input.getValue().trim(),
 385                         inputView = this.model.getViewByTrigger( inputValue.substr( 0, 1 ) );
 386
 387                 if ( inputView !== 'default' ) {
 388                         // We have a prefix already, remove it
 389                         inputValue = inputValue.substr( 1 );
 390                 }
 391
 392                 if ( inputView !== view ) {
 393                         // Add the correct prefix
 394                         inputValue = this.model.getViewTrigger( view ) + inputValue;
 395                 }
 396
 397                 // Update input
 398                 this.input.setValue( inputValue );
 399
 400                 if ( this.currentView !== view ) {
 401                         this.scrollToTop( this.$element );
 402                         this.currentView = view;
 403                 }
 404         };
 405
 406         /**
 407          * Set the visibility of the saved query button
 408          */
 409         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.setSavedQueryVisibility = function () {
 410                 if ( mw.user.isAnon() ) {
 411                         return;
 412                 }
 413
 414                 this.matchingQuery = this.controller.findQueryMatchingCurrentState();
 415
 416                 this.savedQueryTitle.setLabel(
 417                         this.matchingQuery ? this.matchingQuery.getLabel() : ''
 418                 );
 419                 this.savedQueryTitle.toggle( !!this.matchingQuery );
 420                 this.saveQueryButton.toggle( !this.matchingQuery );
 421
 422                 if ( this.matchingQuery ) {
 423                         this.emphasize();
 424                 }
 425         };
 426
 427         /**
 428          * Respond to model itemUpdate event
 429          * fixme: when a new state is applied to the model this function is called 60+ times in a row
 430          *
 431          * @param {mw.rcfilters.dm.FilterItem} item Filter item model
 432          */
 433         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelItemUpdate = function ( item ) {
 434                 if ( !item.getGroupModel().isHidden() ) {
 435                         if (
 436                                 item.isSelected() ||
 437                                 (
 438                                         this.model.isHighlightEnabled() &&
 439                                         item.getHighlightColor()
 440                                 )
 441                         ) {
 442                                 this.addTag( item.getName(), item.getLabel() );
 443                         } else {
 444                                 this.removeTagByData( item.getName() );
 445                         }
 446                 }
 447
 448                 this.setSavedQueryVisibility();
 449
 450                 // Re-evaluate reset state
 451                 this.reevaluateResetRestoreState();
 452         };
 453
 454         /**
 455          * @inheritdoc
 456          */
 457         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.isAllowedData = function ( data ) {
 458                 return (
 459                         this.model.getItemByName( data ) &&
 460                         !this.isDuplicateData( data )
 461                 );
 462         };
 463
 464         /**
 465          * @inheritdoc
 466          */
 467         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuChoose = function ( item ) {
 468                 this.controller.toggleFilterSelect( item.model.getName() );
 469
 470                 // Select the tag if it exists, or reset selection otherwise
 471                 this.selectTag( this.getItemFromData( item.model.getName() ) );
 472
 473                 this.focus();
 474         };
 475
 476         /**
 477          * Respond to highlightChange event
 478          *
 479          * @param {boolean} isHighlightEnabled Highlight is enabled
 480          */
 481         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelHighlightChange = function ( isHighlightEnabled ) {
 482                 var highlightedItems = this.model.getHighlightedItems();
 483
 484                 if ( isHighlightEnabled ) {
 485                         // Add capsule widgets
 486                         highlightedItems.forEach( function ( filterItem ) {
 487                                 this.addTag( filterItem.getName(), filterItem.getLabel() );
 488                         }.bind( this ) );
 489                 } else {
 490                         // Remove capsule widgets if they're not selected
 491                         highlightedItems.forEach( function ( filterItem ) {
 492                                 if ( !filterItem.isSelected() ) {
 493                                         this.removeTagByData( filterItem.getName() );
 494                                 }
 495                         }.bind( this ) );
 496                 }
 497
 498                 this.setSavedQueryVisibility();
 499         };
 500
 501         /**
 502          * @inheritdoc
 503          */
 504         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagSelect = function ( tagItem ) {
 505                 var widget = this,
 506                         menuOption = this.menu.getItemFromModel( tagItem.getModel() ),
 507                         oldInputValue = this.input.getValue().trim();
 508
 509                 this.menu.setUserSelecting( true );
 510
 511                 // Reset input
 512                 this.input.setValue( '' );
 513
 514                 // Switch view
 515                 this.controller.switchView( tagItem.getView() );
 516
 517                 // Parent method
 518                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagSelect.call( this, tagItem );
 519
 520                 this.menu.selectItem( menuOption );
 521                 this.selectTag( tagItem );
 522
 523                 // Scroll to the item
 524                 if ( this.model.removeViewTriggers( oldInputValue ) ) {
 525                         // We're binding a 'once' to the itemVisibilityChange event
 526                         // so this happens when the menu is ready after the items
 527                         // are visible again, in case this is done right after the
 528                         // user filtered the results
 529                         this.getMenu().once(
 530                                 'itemVisibilityChange',
 531                                 function () {
 532                                         widget.scrollToTop( menuOption.$element );
 533                                         widget.menu.setUserSelecting( false );
 534                                 }
 535                         );
 536                 } else {
 537                         this.scrollToTop( menuOption.$element );
 538                         this.menu.setUserSelecting( false );
 539                 }
 540
 541         };
 542
 543         /**
 544          * Select a tag by reference. This is what OO.ui.SelectWidget is doing.
 545          * If no items are given, reset selection from all.
 546          *
 547          * @param {mw.rcfilters.ui.FilterTagItemWidget} [item] Tag to select,
 548          *  omit to deselect all
 549          */
 550         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.selectTag = function ( item ) {
 551                 var i, len, selected;
 552
 553                 for ( i = 0, len = this.items.length; i < len; i++ ) {
 554                         selected = this.items[ i ] === item;
 555                         if ( this.items[ i ].isSelected() !== selected ) {
 556                                 this.items[ i ].toggleSelected( selected );
 557                         }
 558                 }
 559         };
 560         /**
 561          * @inheritdoc
 562          */
 563         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagRemove = function ( tagItem ) {
 564                 // Parent method
 565                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagRemove.call( this, tagItem );
 566
 567                 this.controller.clearFilter( tagItem.getName() );
 568
 569                 tagItem.destroy();
 570         };
 571
 572         /**
 573          * Respond to click event on the reset button
 574          */
 575         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onResetButtonClick = function () {
 576                 if ( this.model.areCurrentFiltersEmpty() ) {
 577                         // Reset to default filters
 578                         this.controller.resetToDefaults();
 579                 } else {
 580                         // Reset to have no filters
 581                         this.controller.emptyFilters();
 582                 }
 583         };
 584
 585         /**
 586          * Reevaluate the restore state for the widget between setting to defaults and clearing all filters
 587          */
 588         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.reevaluateResetRestoreState = function () {
 589                 var defaultsAreEmpty = this.controller.areDefaultsEmpty(),
 590                         currFiltersAreEmpty = this.model.areCurrentFiltersEmpty(),
 591                         hideResetButton = currFiltersAreEmpty && defaultsAreEmpty;
 592
 593                 this.resetButton.setIcon(
 594                         currFiltersAreEmpty ? 'history' : 'trash'
 595                 );
 596
 597                 this.resetButton.setLabel(
 598                         currFiltersAreEmpty ? mw.msg( 'rcfilters-restore-default-filters' ) : ''
 599                 );
 600                 this.resetButton.setTitle(
 601                         currFiltersAreEmpty ? null : mw.msg( 'rcfilters-clear-all-filters' )
 602                 );
 603
 604                 this.resetButton.toggle( !hideResetButton );
 605                 this.emptyFilterMessage.toggle( currFiltersAreEmpty );
 606         };
 607
 608         /**
 609          * @inheritdoc
 610          */
 611         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createMenuWidget = function ( menuConfig ) {
 612                 return new mw.rcfilters.ui.MenuSelectWidget(
 613                         this.controller,
 614                         this.model,
 615                         $.extend( {
 616                                 filterFromInput: true
 617                         }, menuConfig )
 618                 );
 619         };
 620
 621         /**
 622          * @inheritdoc
 623          */
 624         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createTagItemWidget = function ( data ) {
 625                 var filterItem = this.model.getItemByName( data );
 626
 627                 if ( filterItem ) {
 628                         return new mw.rcfilters.ui.FilterTagItemWidget(
 629                                 this.controller,
 630                                 this.model,
 631                                 this.model.getInvertModel(),
 632                                 filterItem,
 633                                 {
 634                                         $overlay: this.$overlay
 635                                 }
 636                         );
 637                 }
 638         };
 639
 640         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.emphasize = function () {
 641                 if (
 642                         !this.$handle.hasClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' )
 643                 ) {
 644                         this.$handle
 645                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' )
 646                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 647
 648                         setTimeout( function () {
 649                                 this.$handle
 650                                         .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' );
 651
 652                                 setTimeout( function () {
 653                                         this.$handle
 654                                                 .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 655                                 }.bind( this ), 1000 );
 656                         }.bind( this ), 500 );
 657
 658                 }
 659         };
 660         /**
 661          * Scroll the element to top within its container
 662          *
 663          * @private
 664          * @param {jQuery} $element Element to position
 665          * @param {number} [marginFromTop=0] When scrolling the entire widget to the top, leave this
 666          *  much space (in pixels) above the widget.
 667          * @param {Object} [threshold] Minimum distance from the top of the element to scroll at all
 668          * @param {number} [threshold.min] Minimum distance above the element
 669          * @param {number} [threshold.max] Minimum distance below the element
 670          */
 671         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.scrollToTop = function ( $element, marginFromTop, threshold ) {
 672                 var container = OO.ui.Element.static.getClosestScrollableContainer( $element[ 0 ], 'y' ),
 673                         pos = OO.ui.Element.static.getRelativePosition( $element, $( container ) ),
 674                         containerScrollTop = $( container ).scrollTop(),
 675                         effectiveScrollTop = $( container ).is( 'body, html' ) ? 0 : containerScrollTop,
 676                         newScrollTop = effectiveScrollTop + pos.top - ( marginFromTop || 0 );
 677
 678                 // Scroll to item
 679                 if (
 680                         threshold === undefined ||
 681                         (
 682                                 (
 683                                         threshold.min === undefined ||
 684                                         newScrollTop - containerScrollTop >= threshold.min
 685                                 ) &&
 686                                 (
 687                                         threshold.max === undefined ||
 688                                         newScrollTop - containerScrollTop <= threshold.max
 689                                 )
 690                         )
 691                 ) {
 692                         $( container ).animate( {
 693                                 scrollTop: newScrollTop
 694                         } );
 695                 }
 696         };
 697 }( mediaWiki ) );