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                                 // Our filtering is done through the model
  45                                 filterFromInput: false,
  46                                 hideWhenOutOfView: false,
  47                                 hideOnChoose: false,
  48                                 width: 650,
  49                                 footers: [
  50                                         {
  51                                                 name: 'viewSelect',
  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                 this.hideShowButton = new OO.ui.ButtonWidget( {
  91                         framed: false,
  92                         flags: [ 'progressive' ],
  93                         label: mw.msg( 'rcfilters-activefilters-hide' ),
  94                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-hideshowButton' ]
  95                 } );
  96                 this.collapsed = false;
  97
  98                 if ( !mw.user.isAnon() ) {
  99                         this.saveQueryButton = new mw.rcfilters.ui.SaveFiltersPopupButtonWidget(
 100                                 this.controller,
 101                                 this.queriesModel,
 102                                 {
 103                                         $overlay: this.$overlay
 104                                 }
 105                         );
 106
 107                         this.saveQueryButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
 108
 109                         this.saveQueryButton.connect( this, {
 110                                 click: 'onSaveQueryButtonClick',
 111                                 saveCurrent: 'setSavedQueryVisibility'
 112                         } );
 113                         this.queriesModel.connect( this, {
 114                                 itemUpdate: 'onSavedQueriesItemUpdate',
 115                                 initialize: 'onSavedQueriesInitialize',
 116                                 'default': 'reevaluateResetRestoreState'
 117                         } );
 118                 }
 119
 120                 this.emptyFilterMessage = new OO.ui.LabelWidget( {
 121                         label: mw.msg( 'rcfilters-empty-filter' ),
 122                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-emptyFilters' ]
 123                 } );
 124                 this.$content.append( this.emptyFilterMessage.$element );
 125
 126                 // Events
 127                 this.resetButton.connect( this, { click: 'onResetButtonClick' } );
 128                 this.hideShowButton.connect( this, { click: 'onHideShowButtonClick' } );
 129                 // Stop propagation for mousedown, so that the widget doesn't
 130                 // trigger the focus on the input and scrolls up when we click the reset button
 131                 this.resetButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
 132                 this.hideShowButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
 133                 this.model.connect( this, {
 134                         initialize: 'onModelInitialize',
 135                         update: 'onModelUpdate',
 136                         searchChange: 'onModelSearchChange',
 137                         itemUpdate: 'onModelItemUpdate',
 138                         highlightChange: 'onModelHighlightChange'
 139                 } );
 140                 this.input.connect( this, { change: 'onInputChange' } );
 141
 142                 // The filter list and button should appear side by side regardless of how
 143                 // wide the button is; the button also changes its width depending
 144                 // on language and its state, so the safest way to present both side
 145                 // by side is with a table layout
 146                 rcFiltersRow = $( '<div>' )
 147                         .addClass( 'mw-rcfilters-ui-row' )
 148                         .append(
 149                                 this.$content
 150                                         .addClass( 'mw-rcfilters-ui-cell' )
 151                                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-filters' )
 152                         );
 153
 154                 if ( !mw.user.isAnon() ) {
 155                         rcFiltersRow.append(
 156                                 $( '<div>' )
 157                                         .addClass( 'mw-rcfilters-ui-cell' )
 158                                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-save' )
 159                                         .append( this.saveQueryButton.$element )
 160                         );
 161                 }
 162
 163                 // Add a selector at the right of the input
 164                 this.viewsSelectWidget = new OO.ui.ButtonSelectWidget( {
 165                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select-widget' ],
 166                         items: [
 167                                 new OO.ui.ButtonOptionWidget( {
 168                                         framed: false,
 169                                         data: 'namespaces',
 170                                         icon: 'article',
 171                                         label: mw.msg( 'namespaces' ),
 172                                         title: mw.msg( 'rcfilters-view-namespaces-tooltip' )
 173                                 } ),
 174                                 new OO.ui.ButtonOptionWidget( {
 175                                         framed: false,
 176                                         data: 'tags',
 177                                         icon: 'tag',
 178                                         label: mw.msg( 'tags-title' ),
 179                                         title: mw.msg( 'rcfilters-view-tags-tooltip' )
 180                                 } )
 181                         ]
 182                 } );
 183
 184                 // Rearrange the UI so the select widget is at the right of the input
 185                 this.$element.append(
 186                         $( '<div>' )
 187                                 .addClass( 'mw-rcfilters-ui-table' )
 188                                 .append(
 189                                         $( '<div>' )
 190                                                 .addClass( 'mw-rcfilters-ui-row' )
 191                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views' )
 192                                                 .append(
 193                                                         $( '<div>' )
 194                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 195                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-input' )
 196                                                                 .append( this.input.$element ),
 197                                                         $( '<div>' )
 198                                                                 .addClass( 'mw-rcfilters-ui-cell' )
 199                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-views-select' )
 200                                                                 .append( this.viewsSelectWidget.$element )
 201                                                 )
 202                                 )
 203                 );
 204
 205                 // Event
 206                 this.viewsSelectWidget.connect( this, { choose: 'onViewsSelectWidgetChoose' } );
 207
 208                 rcFiltersRow.append(
 209                         $( '<div>' )
 210                                 .addClass( 'mw-rcfilters-ui-cell' )
 211                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-reset' )
 212                                 .append( this.resetButton.$element )
 213                 );
 214
 215                 // Build the content
 216                 $contentWrapper.append(
 217                         $( '<div>' )
 218                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-top' )
 219                                 .append(
 220                                         $( '<div>' )
 221                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-title' )
 222                                                 .append(
 223                                                         title.$element,
 224                                                         this.savedQueryTitle.$element
 225                                                 ),
 226                                         $( '<div>' )
 227                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-hideshow' )
 228                                                 .append(
 229                                                         this.hideShowButton.$element
 230                                                 )
 231                                 ),
 232                         $( '<div>' )
 233                                 .addClass( 'mw-rcfilters-ui-table' )
 234                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-filters' )
 235                                 .append( rcFiltersRow )
 236                 );
 237
 238                 // Initialize
 239                 this.$handle.append( $contentWrapper );
 240                 this.emptyFilterMessage.toggle( this.isEmpty() );
 241                 this.savedQueryTitle.toggle( false );
 242
 243                 this.$element
 244                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget' );
 245
 246                 this.reevaluateResetRestoreState();
 247         };
 248
 249         /* Initialization */
 250
 251         OO.inheritClass( mw.rcfilters.ui.FilterTagMultiselectWidget, OO.ui.MenuTagMultiselectWidget );
 252
 253         /* Methods */
 254
 255         /**
 256          * Respond to view select widget choose event
 257          *
 258          * @param {OO.ui.ButtonOptionWidget} buttonOptionWidget Chosen widget
 259          */
 260         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onViewsSelectWidgetChoose = function ( buttonOptionWidget ) {
 261                 this.controller.switchView( buttonOptionWidget.getData() );
 262                 this.viewsSelectWidget.selectItem( null );
 263                 this.focus();
 264         };
 265
 266         /**
 267          * Respond to model search change event
 268          *
 269          * @param {string} value Search value
 270          */
 271         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelSearchChange = function ( value ) {
 272                 this.input.setValue( value );
 273         };
 274
 275         /**
 276          * Respond to input change event
 277          *
 278          * @param {string} value Value of the input
 279          */
 280         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputChange = function ( value ) {
 281                 this.controller.setSearch( value );
 282         };
 283
 284         /**
 285          * Respond to query button click
 286          */
 287         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSaveQueryButtonClick = function () {
 288                 this.getMenu().toggle( false );
 289         };
 290
 291         /**
 292          * Respond to save query model initialization
 293          */
 294         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSavedQueriesInitialize = function () {
 295                 this.setSavedQueryVisibility();
 296         };
 297
 298         /**
 299          * Respond to save query item change. Mainly this is done to update the label in case
 300          * a query item has been edited
 301          *
 302          * @param {mw.rcfilters.dm.SavedQueryItemModel} item Saved query item
 303          */
 304         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onSavedQueriesItemUpdate = function ( item ) {
 305                 if ( this.matchingQuery === item ) {
 306                         // This means we just edited the item that is currently matched
 307                         this.savedQueryTitle.setLabel( item.getLabel() );
 308                 }
 309         };
 310
 311         /**
 312          * Respond to menu toggle
 313          *
 314          * @param {boolean} isVisible Menu is visible
 315          */
 316         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuToggle = function ( isVisible ) {
 317                 // Parent
 318                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onMenuToggle.call( this );
 319
 320                 if ( isVisible ) {
 321                         this.focus();
 322
 323                         mw.hook( 'RcFilters.popup.open' ).fire();
 324
 325                         if ( !this.getMenu().findSelectedItem() ) {
 326                                 // If there are no selected items, scroll menu to top
 327                                 // This has to be in a setTimeout so the menu has time
 328                                 // to be positioned and fixed
 329                                 setTimeout( function () { this.getMenu().scrollToTop(); }.bind( this ), 0 );
 330                         }
 331                 } else {
 332                         this.blur();
 333
 334                         // Clear selection
 335                         this.selectTag( null );
 336
 337                         // Clear the search
 338                         this.controller.setSearch( '' );
 339
 340                         // Log filter grouping
 341                         this.controller.trackFilterGroupings( 'filtermenu' );
 342                 }
 343
 344                 this.input.setIcon( isVisible ? 'search' : 'menu' );
 345         };
 346
 347         /**
 348          * @inheritdoc
 349          */
 350         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputFocus = function () {
 351                 // Parent
 352                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onInputFocus.call( this );
 353
 354                 // Only scroll to top of the viewport if:
 355                 // - The widget is more than 20px from the top
 356                 // - The widget is not above the top of the viewport (do not scroll downwards)
 357                 //   (This isn't represented because >20 is, anyways and always, bigger than 0)
 358                 this.scrollToTop( this.$element, 0, { min: 20, max: Infinity } );
 359         };
 360
 361         /**
 362          * @inheritdoc
 363          */
 364         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.doInputEscape = function () {
 365                 // Parent
 366                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.doInputEscape.call( this );
 367
 368                 // Blur the input
 369                 this.input.$input.blur();
 370         };
 371
 372         /**
 373          * @inheritdoc
 374          */
 375         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMouseDown = function ( e ) {
 376                 if ( !this.collapsed && !this.isDisabled() && e.which === OO.ui.MouseButtons.LEFT ) {
 377                         this.menu.toggle();
 378
 379                         return false;
 380                 }
 381         };
 382
 383         /**
 384          * @inheritdoc
 385          */
 386         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onChangeTags = function () {
 387                 // Parent method
 388                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onChangeTags.call( this );
 389
 390                 this.emptyFilterMessage.toggle( this.isEmpty() );
 391         };
 392
 393         /**
 394          * Respond to model initialize event
 395          */
 396         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelInitialize = function () {
 397                 this.setSavedQueryVisibility();
 398         };
 399
 400         /**
 401          * Respond to model update event
 402          */
 403         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelUpdate = function () {
 404                 this.updateElementsForView();
 405         };
 406
 407         /**
 408          * Update the elements in the widget to the current view
 409          */
 410         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.updateElementsForView = function () {
 411                 var view = this.model.getCurrentView(),
 412                         inputValue = this.input.getValue().trim(),
 413                         inputView = this.model.getViewByTrigger( inputValue.substr( 0, 1 ) );
 414
 415                 if ( inputView !== 'default' ) {
 416                         // We have a prefix already, remove it
 417                         inputValue = inputValue.substr( 1 );
 418                 }
 419
 420                 if ( inputView !== view ) {
 421                         // Add the correct prefix
 422                         inputValue = this.model.getViewTrigger( view ) + inputValue;
 423                 }
 424
 425                 // Update input
 426                 this.input.setValue( inputValue );
 427
 428                 if ( this.currentView !== view ) {
 429                         this.scrollToTop( this.$element );
 430                         this.currentView = view;
 431                 }
 432         };
 433
 434         /**
 435          * Set the visibility of the saved query button
 436          */
 437         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.setSavedQueryVisibility = function () {
 438                 if ( mw.user.isAnon() ) {
 439                         return;
 440                 }
 441
 442                 this.matchingQuery = this.controller.findQueryMatchingCurrentState();
 443
 444                 this.savedQueryTitle.setLabel(
 445                         this.matchingQuery ? this.matchingQuery.getLabel() : ''
 446                 );
 447                 this.savedQueryTitle.toggle( !!this.matchingQuery );
 448                 this.saveQueryButton.setDisabled( !!this.matchingQuery );
 449                 this.saveQueryButton.setTitle( !this.matchingQuery ?
 450                         mw.msg( 'rcfilters-savedqueries-add-new-title' ) :
 451                         mw.msg( 'rcfilters-savedqueries-already-saved' ) );
 452
 453                 if ( this.matchingQuery ) {
 454                         this.emphasize();
 455                 }
 456         };
 457
 458         /**
 459          * Respond to model itemUpdate event
 460          * fixme: when a new state is applied to the model this function is called 60+ times in a row
 461          *
 462          * @param {mw.rcfilters.dm.FilterItem} item Filter item model
 463          */
 464         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelItemUpdate = function ( item ) {
 465                 if ( !item.getGroupModel().isHidden() ) {
 466                         if (
 467                                 item.isSelected() ||
 468                                 (
 469                                         this.model.isHighlightEnabled() &&
 470                                         item.getHighlightColor()
 471                                 )
 472                         ) {
 473                                 this.addTag( item.getName(), item.getLabel() );
 474                         } else {
 475                                 this.removeTagByData( item.getName() );
 476                         }
 477                 }
 478
 479                 this.setSavedQueryVisibility();
 480
 481                 // Re-evaluate reset state
 482                 this.reevaluateResetRestoreState();
 483         };
 484
 485         /**
 486          * @inheritdoc
 487          */
 488         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.isAllowedData = function ( data ) {
 489                 return (
 490                         this.model.getItemByName( data ) &&
 491                         !this.isDuplicateData( data )
 492                 );
 493         };
 494
 495         /**
 496          * @inheritdoc
 497          */
 498         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuChoose = function ( item ) {
 499                 this.controller.toggleFilterSelect( item.model.getName() );
 500
 501                 // Select the tag if it exists, or reset selection otherwise
 502                 this.selectTag( this.findItemFromData( item.model.getName() ) );
 503
 504                 this.focus();
 505         };
 506
 507         /**
 508          * Respond to highlightChange event
 509          *
 510          * @param {boolean} isHighlightEnabled Highlight is enabled
 511          */
 512         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelHighlightChange = function ( isHighlightEnabled ) {
 513                 var highlightedItems = this.model.getHighlightedItems();
 514
 515                 if ( isHighlightEnabled ) {
 516                         // Add capsule widgets
 517                         highlightedItems.forEach( function ( filterItem ) {
 518                                 this.addTag( filterItem.getName(), filterItem.getLabel() );
 519                         }.bind( this ) );
 520                 } else {
 521                         // Remove capsule widgets if they're not selected
 522                         highlightedItems.forEach( function ( filterItem ) {
 523                                 if ( !filterItem.isSelected() ) {
 524                                         this.removeTagByData( filterItem.getName() );
 525                                 }
 526                         }.bind( this ) );
 527                 }
 528
 529                 this.setSavedQueryVisibility();
 530         };
 531
 532         /**
 533          * @inheritdoc
 534          */
 535         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagSelect = function ( tagItem ) {
 536                 var menuOption = this.menu.getItemFromModel( tagItem.getModel() );
 537
 538                 this.menu.setUserSelecting( true );
 539                 // Parent method
 540                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagSelect.call( this, tagItem );
 541
 542                 // Switch view
 543                 this.controller.resetSearchForView( tagItem.getView() );
 544
 545                 this.selectTag( tagItem );
 546                 this.scrollToTop( menuOption.$element );
 547
 548                 this.menu.setUserSelecting( false );
 549         };
 550
 551         /**
 552          * Select a tag by reference. This is what OO.ui.SelectWidget is doing.
 553          * If no items are given, reset selection from all.
 554          *
 555          * @param {mw.rcfilters.ui.FilterTagItemWidget} [item] Tag to select,
 556          *  omit to deselect all
 557          */
 558         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.selectTag = function ( item ) {
 559                 var i, len, selected;
 560
 561                 for ( i = 0, len = this.items.length; i < len; i++ ) {
 562                         selected = this.items[ i ] === item;
 563                         if ( this.items[ i ].isSelected() !== selected ) {
 564                                 this.items[ i ].toggleSelected( selected );
 565                         }
 566                 }
 567         };
 568         /**
 569          * @inheritdoc
 570          */
 571         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagRemove = function ( tagItem ) {
 572                 // Parent method
 573                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagRemove.call( this, tagItem );
 574
 575                 this.controller.clearFilter( tagItem.getName() );
 576
 577                 tagItem.destroy();
 578         };
 579
 580         /**
 581          * Respond to click event on the reset button
 582          */
 583         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onResetButtonClick = function () {
 584                 if ( this.model.areVisibleFiltersEmpty() ) {
 585                         // Reset to default filters
 586                         this.controller.resetToDefaults();
 587                 } else {
 588                         // Reset to have no filters
 589                         this.controller.emptyFilters();
 590                 }
 591         };
 592
 593         /**
 594          * Respond to hide/show button click
 595          */
 596         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onHideShowButtonClick = function () {
 597                 this.toggleCollapsed();
 598         };
 599
 600         /**
 601          * Toggle the collapsed state of the filters widget
 602          *
 603          * @param {boolean} isCollapsed Widget is collapsed
 604          */
 605         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.toggleCollapsed = function ( isCollapsed ) {
 606                 isCollapsed = isCollapsed === undefined ? !this.collapsed : !!isCollapsed;
 607
 608                 if ( this.collapsed !== isCollapsed ) {
 609                         this.collapsed = isCollapsed;
 610
 611                         if ( isCollapsed ) {
 612                                 // If we are collapsing, close the menu, in case it was open
 613                                 // We should make sure the menu closes before the rest of the elements
 614                                 // are hidden, otherwise there is an unknown error in jQuery as ooui
 615                                 // sets and unsets properties on the input (which is hidden at that point)
 616                                 this.menu.toggle( false );
 617                         }
 618                         this.input.setDisabled( isCollapsed );
 619                         this.hideShowButton.setLabel( mw.msg(
 620                                 isCollapsed ? 'rcfilters-activefilters-show' : 'rcfilters-activefilters-hide'
 621                         ) );
 622
 623                         this.$element.toggleClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-collapsed', isCollapsed );
 624                 }
 625         };
 626
 627         /**
 628          * Reevaluate the restore state for the widget between setting to defaults and clearing all filters
 629          */
 630         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.reevaluateResetRestoreState = function () {
 631                 var defaultsAreEmpty = this.controller.areDefaultsEmpty(),
 632                         currFiltersAreEmpty = this.model.areVisibleFiltersEmpty(),
 633                         hideResetButton = currFiltersAreEmpty && defaultsAreEmpty;
 634
 635                 this.resetButton.setIcon(
 636                         currFiltersAreEmpty ? 'history' : 'trash'
 637                 );
 638
 639                 this.resetButton.setLabel(
 640                         currFiltersAreEmpty ? mw.msg( 'rcfilters-restore-default-filters' ) : ''
 641                 );
 642                 this.resetButton.setTitle(
 643                         currFiltersAreEmpty ? null : mw.msg( 'rcfilters-clear-all-filters' )
 644                 );
 645
 646                 this.resetButton.toggle( !hideResetButton );
 647                 this.emptyFilterMessage.toggle( currFiltersAreEmpty );
 648         };
 649
 650         /**
 651          * @inheritdoc
 652          */
 653         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createMenuWidget = function ( menuConfig ) {
 654                 return new mw.rcfilters.ui.MenuSelectWidget(
 655                         this.controller,
 656                         this.model,
 657                         menuConfig
 658                 );
 659         };
 660
 661         /**
 662          * @inheritdoc
 663          */
 664         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createTagItemWidget = function ( data ) {
 665                 var filterItem = this.model.getItemByName( data );
 666
 667                 if ( filterItem ) {
 668                         return new mw.rcfilters.ui.FilterTagItemWidget(
 669                                 this.controller,
 670                                 this.model,
 671                                 this.model.getInvertModel(),
 672                                 filterItem,
 673                                 {
 674                                         $overlay: this.$overlay
 675                                 }
 676                         );
 677                 }
 678         };
 679
 680         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.emphasize = function () {
 681                 if (
 682                         !this.$handle.hasClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' )
 683                 ) {
 684                         this.$handle
 685                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' )
 686                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 687
 688                         setTimeout( function () {
 689                                 this.$handle
 690                                         .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-emphasize' );
 691
 692                                 setTimeout( function () {
 693                                         this.$handle
 694                                                 .removeClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-animate' );
 695                                 }.bind( this ), 1000 );
 696                         }.bind( this ), 500 );
 697
 698                 }
 699         };
 700         /**
 701          * Scroll the element to top within its container
 702          *
 703          * @private
 704          * @param {jQuery} $element Element to position
 705          * @param {number} [marginFromTop=0] When scrolling the entire widget to the top, leave this
 706          *  much space (in pixels) above the widget.
 707          * @param {Object} [threshold] Minimum distance from the top of the element to scroll at all
 708          * @param {number} [threshold.min] Minimum distance above the element
 709          * @param {number} [threshold.max] Minimum distance below the element
 710          */
 711         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.scrollToTop = function ( $element, marginFromTop, threshold ) {
 712                 var container = OO.ui.Element.static.getClosestScrollableContainer( $element[ 0 ], 'y' ),
 713                         pos = OO.ui.Element.static.getRelativePosition( $element, $( container ) ),
 714                         containerScrollTop = $( container ).scrollTop(),
 715                         effectiveScrollTop = $( container ).is( 'body, html' ) ? 0 : containerScrollTop,
 716                         newScrollTop = effectiveScrollTop + pos.top - ( marginFromTop || 0 );
 717
 718                 // Scroll to item
 719                 if (
 720                         threshold === undefined ||
 721                         (
 722                                 (
 723                                         threshold.min === undefined ||
 724                                         newScrollTop - containerScrollTop >= threshold.min
 725                                 ) &&
 726                                 (
 727                                         threshold.max === undefined ||
 728                                         newScrollTop - containerScrollTop <= threshold.max
 729                                 )
 730                         )
 731                 ) {
 732                         $( container ).animate( {
 733                                 scrollTop: newScrollTop
 734                         } );
 735                 }
 736         };
 737 }( mediaWiki ) );