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

   1 ( function ( mw ) {
   2         /**
   3          * List displaying all filter groups
   4          *
   5          * @extends OO.ui.Widget
   6          * @mixins OO.ui.mixin.PendingElement
   7          *
   8          * @constructor
   9          * @param {mw.rcfilters.Controller} controller Controller
  10          * @param {mw.rcfilters.dm.FiltersViewModel} model View model
  11          * @param {Object} config Configuration object
  12          * @cfg {jQuery} [$overlay] A jQuery object serving as overlay for popups
  13          */
  14         mw.rcfilters.ui.FilterTagMultiselectWidget = function MwRcfiltersUiFilterTagMultiselectWidget( controller, model, config ) {
  15                 var title = new OO.ui.LabelWidget( {
  16                                 label: mw.msg( 'rcfilters-activefilters' ),
  17                                 classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper-content-title' ]
  18                         } ),
  19                         $contentWrapper = $( '<div>' )
  20                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-wrapper' );
  21
  22                 config = config || {};
  23
  24                 this.controller = controller;
  25                 this.model = model;
  26                 this.$overlay = config.$overlay || this.$element;
  27
  28                 // Parent
  29                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.call( this, $.extend( true, {
  30                         label: mw.msg( 'rcfilters-filterlist-title' ),
  31                         placeholder: mw.msg( 'rcfilters-empty-filter' ),
  32                         inputPosition: 'outline',
  33                         allowArbitrary: false,
  34                         allowDisplayInvalidTags: false,
  35                         allowReordering: false,
  36                         $overlay: this.$overlay,
  37                         menu: {
  38                                 hideWhenOutOfView: false,
  39                                 hideOnChoose: false,
  40                                 width: 650,
  41                                 $footer: $( '<div>' )
  42                                         .append(
  43                                                 new OO.ui.ButtonWidget( {
  44                                                         framed: false,
  45                                                         icon: 'feedback',
  46                                                         flags: [ 'progressive' ],
  47                                                         label: mw.msg( 'rcfilters-filterlist-feedbacklink' ),
  48                                                         href: 'https://www.mediawiki.org/wiki/Help_talk:New_filters_for_edit_review'
  49                                                 } ).$element
  50                                         )
  51                         },
  52                         input: {
  53                                 icon: 'search',
  54                                 placeholder: mw.msg( 'rcfilters-search-placeholder' )
  55                         }
  56                 }, config ) );
  57
  58                 this.resetButton = new OO.ui.ButtonWidget( {
  59                         framed: false,
  60                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-resetButton' ]
  61                 } );
  62
  63                 this.emptyFilterMessage = new OO.ui.LabelWidget( {
  64                         label: mw.msg( 'rcfilters-empty-filter' ),
  65                         classes: [ 'mw-rcfilters-ui-filterTagMultiselectWidget-emptyFilters' ]
  66                 } );
  67                 this.$content.append( this.emptyFilterMessage.$element );
  68
  69                 // Events
  70                 this.resetButton.connect( this, { click: 'onResetButtonClick' } );
  71                 // Stop propagation for mousedown, so that the widget doesn't
  72                 // trigger the focus on the input and scrolls up when we click the reset button
  73                 this.resetButton.$element.on( 'mousedown', function ( e ) { e.stopPropagation(); } );
  74                 this.model.connect( this, {
  75                         initialize: 'onModelInitialize',
  76                         itemUpdate: 'onModelItemUpdate',
  77                         highlightChange: 'onModelHighlightChange'
  78                 } );
  79                 this.menu.connect( this, { toggle: 'onMenuToggle' } );
  80
  81                 // Build the content
  82                 $contentWrapper.append(
  83                         title.$element,
  84                         $( '<div>' )
  85                                 .addClass( 'mw-rcfilters-ui-table' )
  86                                 .append(
  87                                         // The filter list and button should appear side by side regardless of how
  88                                         // wide the button is; the button also changes its width depending
  89                                         // on language and its state, so the safest way to present both side
  90                                         // by side is with a table layout
  91                                         $( '<div>' )
  92                                                 .addClass( 'mw-rcfilters-ui-row' )
  93                                                 .append(
  94                                                         this.$content
  95                                                                 .addClass( 'mw-rcfilters-ui-cell' )
  96                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-filters' ),
  97                                                         $( '<div>' )
  98                                                                 .addClass( 'mw-rcfilters-ui-cell' )
  99                                                                 .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget-cell-reset' )
 100                                                                 .append( this.resetButton.$element )
 101                                                 )
 102                                 )
 103                 );
 104
 105                 // Initialize
 106                 this.$handle.append( $contentWrapper );
 107                 this.emptyFilterMessage.toggle( this.isEmpty() );
 108
 109                 this.$element
 110                         .addClass( 'mw-rcfilters-ui-filterTagMultiselectWidget' );
 111
 112                 this.populateFromModel();
 113                 this.reevaluateResetRestoreState();
 114         };
 115
 116         /* Initialization */
 117
 118         OO.inheritClass( mw.rcfilters.ui.FilterTagMultiselectWidget, OO.ui.MenuTagMultiselectWidget );
 119
 120         /* Methods */
 121
 122         /**
 123          * Respond to menu toggle
 124          *
 125          * @param {boolean} isVisible Menu is visible
 126          */
 127         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuToggle = function ( isVisible ) {
 128                 if ( isVisible ) {
 129                         mw.hook( 'RcFilters.popup.open' ).fire( this.getMenu().getSelectedItem() );
 130
 131                         if ( !this.getMenu().getSelectedItem() ) {
 132                                 // If there are no selected items, scroll menu to top
 133                                 // This has to be in a setTimeout so the menu has time
 134                                 // to be positioned and fixed
 135                                 setTimeout( function () { this.getMenu().scrollToTop(); }.bind( this ), 0 );
 136                         }
 137                 } else {
 138                         // Clear selection
 139                         this.getMenu().selectItem( null );
 140                 }
 141         };
 142
 143         /**
 144          * @inheritdoc
 145          */
 146         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onInputFocus = function () {
 147                 // Parent
 148                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onInputFocus.call( this );
 149
 150                 // Scroll to top
 151                 this.scrollToTop( this.$element );
 152         };
 153
 154         /**
 155          * @inheridoc
 156          */
 157         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onChangeTags = function () {
 158                 // Parent method
 159                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onChangeTags.call( this );
 160
 161                 this.emptyFilterMessage.toggle( this.isEmpty() );
 162         };
 163
 164         /**
 165          * Respond to model initialize event
 166          */
 167         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelInitialize = function () {
 168                 this.populateFromModel();
 169         };
 170
 171         /**
 172          * Respond to model itemUpdate event
 173          *
 174          * @param {mw.rcfilters.dm.FilterItem} item Filter item model
 175          */
 176         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelItemUpdate = function ( item ) {
 177                 if (
 178                         item.isSelected() ||
 179                         (
 180                                 this.model.isHighlightEnabled() &&
 181                                 item.isHighlightSupported() &&
 182                                 item.getHighlightColor()
 183                         )
 184                 ) {
 185                         this.addTag( item.getName(), item.getLabel() );
 186                 } else {
 187                         this.removeTagByData( item.getName() );
 188                 }
 189
 190                 // Re-evaluate reset state
 191                 this.reevaluateResetRestoreState();
 192         };
 193
 194         /**
 195          * @inheritdoc
 196          */
 197         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.isAllowedData = function ( data ) {
 198                 return (
 199                         this.menu.getItemFromData( data ) &&
 200                         !this.isDuplicateData( data )
 201                 );
 202         };
 203
 204         /**
 205          * @inheritdoc
 206          */
 207         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onMenuChoose = function ( item ) {
 208                 this.controller.toggleFilterSelect( item.model.getName() );
 209         };
 210
 211         /**
 212          * Respond to highlightChange event
 213          *
 214          * @param {boolean} isHighlightEnabled Highlight is enabled
 215          */
 216         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onModelHighlightChange = function ( isHighlightEnabled ) {
 217                 var highlightedItems = this.model.getHighlightedItems();
 218
 219                 if ( isHighlightEnabled ) {
 220                         // Add capsule widgets
 221                         highlightedItems.forEach( function ( filterItem ) {
 222                                 this.addTag( filterItem.getName(), filterItem.getLabel() );
 223                         }.bind( this ) );
 224                 } else {
 225                         // Remove capsule widgets if they're not selected
 226                         highlightedItems.forEach( function ( filterItem ) {
 227                                 if ( !filterItem.isSelected() ) {
 228                                         this.removeTagByData( filterItem.getName() );
 229                                 }
 230                         }.bind( this ) );
 231                 }
 232         };
 233
 234         /**
 235          * @inheritdoc
 236          */
 237         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagSelect = function ( tagItem ) {
 238                 var widget = this,
 239                         menuOption = this.menu.getItemFromData( tagItem.getData() );
 240
 241                 // Reset input
 242                 this.input.setValue( '' );
 243
 244                 // Parent method
 245                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagSelect.call( this, tagItem );
 246
 247                 this.menu.selectItem( menuOption );
 248
 249                 // Scroll to the item
 250                 // We're binding a 'once' to the itemVisibilityChange event
 251                 // so this happens when the menu is ready after the items
 252                 // are visible again, in case this is done right after the
 253                 // user filtered the results
 254                 this.getMenu().once(
 255                         'itemVisibilityChange',
 256                         function () { widget.scrollToTop( menuOption.$element ); }
 257                 );
 258         };
 259
 260         /**
 261          * @inheritdoc
 262          */
 263         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onTagRemove = function ( tagItem ) {
 264                 // Parent method
 265                 mw.rcfilters.ui.FilterTagMultiselectWidget.parent.prototype.onTagRemove.call( this, tagItem );
 266
 267                 this.controller.clearFilter( tagItem.getName() );
 268
 269                 tagItem.destroy();
 270         };
 271
 272         /**
 273          * Respond to click event on the reset button
 274          */
 275         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.onResetButtonClick = function () {
 276                 if ( this.model.areCurrentFiltersEmpty() ) {
 277                         // Reset to default filters
 278                         this.controller.resetToDefaults();
 279                 } else {
 280                         // Reset to have no filters
 281                         this.controller.emptyFilters();
 282                 }
 283         };
 284
 285         /**
 286          * Reevaluate the restore state for the widget between setting to defaults and clearing all filters
 287          */
 288         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.reevaluateResetRestoreState = function () {
 289                 var defaultsAreEmpty = this.model.areDefaultFiltersEmpty(),
 290                         currFiltersAreEmpty = this.model.areCurrentFiltersEmpty(),
 291                         hideResetButton = currFiltersAreEmpty && defaultsAreEmpty;
 292
 293                 this.resetButton.setIcon(
 294                         currFiltersAreEmpty ? 'history' : 'trash'
 295                 );
 296
 297                 this.resetButton.setLabel(
 298                         currFiltersAreEmpty ? mw.msg( 'rcfilters-restore-default-filters' ) : ''
 299                 );
 300                 this.resetButton.setTitle(
 301                         currFiltersAreEmpty ? null : mw.msg( 'rcfilters-clear-all-filters' )
 302                 );
 303
 304                 this.resetButton.toggle( !hideResetButton );
 305                 this.emptyFilterMessage.toggle( currFiltersAreEmpty );
 306         };
 307
 308         /**
 309          * @inheritdoc
 310          */
 311         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createMenuWidget = function ( menuConfig ) {
 312                 return new mw.rcfilters.ui.FilterFloatingMenuSelectWidget(
 313                         this.controller,
 314                         this.model,
 315                         $.extend( {
 316                                 filterFromInput: true
 317                         }, menuConfig )
 318                 );
 319         };
 320
 321         /**
 322          * Populate the menu from the model
 323          */
 324         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.populateFromModel = function () {
 325                 var widget = this,
 326                         items = [];
 327
 328                 // Reset
 329                 this.getMenu().clearItems();
 330
 331                 $.each( this.model.getFilterGroups(), function ( groupName, groupModel ) {
 332                         items.push(
 333                                 // Group section
 334                                 new mw.rcfilters.ui.FilterMenuSectionOptionWidget(
 335                                         widget.controller,
 336                                         groupModel,
 337                                         {
 338                                                 $overlay: widget.$overlay
 339                                         }
 340                                 )
 341                         );
 342
 343                         // Add items
 344                         widget.model.getGroupFilters( groupName ).forEach( function ( filterItem ) {
 345                                 items.push(
 346                                         new mw.rcfilters.ui.FilterMenuOptionWidget(
 347                                                 widget.controller,
 348                                                 filterItem,
 349                                                 {
 350                                                         $overlay: widget.$overlay
 351                                                 }
 352                                         )
 353                                 );
 354                         } );
 355                 } );
 356
 357                 // Add all items to the menu
 358                 this.getMenu().addItems( items );
 359         };
 360
 361         /**
 362          * @inheritdoc
 363          */
 364         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.createTagItemWidget = function ( data ) {
 365                 var filterItem = this.model.getItemByName( data );
 366
 367                 if ( filterItem ) {
 368                         return new mw.rcfilters.ui.FilterTagItemWidget(
 369                                 this.controller,
 370                                 filterItem,
 371                                 {
 372                                         $overlay: this.$overlay
 373                                 }
 374                         );
 375                 }
 376         };
 377
 378         /**
 379          * Scroll the element to top within its container
 380          *
 381          * @private
 382          * @param {jQuery} $element Element to position
 383          * @param {number} [marginFromTop] When scrolling the entire widget to the top, leave this
 384          *  much space (in pixels) above the widget.
 385          */
 386         mw.rcfilters.ui.FilterTagMultiselectWidget.prototype.scrollToTop = function ( $element, marginFromTop ) {
 387                 var container = OO.ui.Element.static.getClosestScrollableContainer( $element[ 0 ], 'y' ),
 388                         pos = OO.ui.Element.static.getRelativePosition( $element, $( container ) ),
 389                         containerScrollTop = $( container ).is( 'body, html' ) ? 0 : $( container ).scrollTop();
 390
 391                 // Scroll to item
 392                 $( container ).animate( {
 393                         scrollTop: containerScrollTop + pos.top - ( marginFromTop || 0 )
 394                 } );
 395         };
 396 }( mediaWiki ) );