--- /dev/null
+( function ( mw, $ ) {
+ /* eslint no-underscore-dangle: "off" */
+ /**
+ * Controller for the filters in Recent Changes
+ * @class
+ *
+ * @constructor
+ * @param {mw.rcfilters.dm.FiltersViewModel} filtersModel Filters view model
+ * @param {mw.rcfilters.dm.ChangesListViewModel} changesListModel Changes list view model
+ * @param {mw.rcfilters.dm.SavedQueriesModel} savedQueriesModel Saved queries model
+ * @param {Object} config Additional configuration
+ * @cfg {string} savedQueriesPreferenceName Where to save the saved queries
+ */
+ mw.rcfilters.Controller = function MwRcfiltersController( filtersModel, changesListModel, savedQueriesModel, config ) {
+ this.filtersModel = filtersModel;
+ this.changesListModel = changesListModel;
+ this.savedQueriesModel = savedQueriesModel;
+ this.savedQueriesPreferenceName = config.savedQueriesPreferenceName;
+
+ this.requestCounter = {};
+ this.baseFilterState = {};
+ this.uriProcessor = null;
+ this.initializing = false;
+
+ this.prevLoggedItems = [];
+
+ this.FILTER_CHANGE = 'filterChange';
+ this.SHOW_NEW_CHANGES = 'showNewChanges';
+ this.LIVE_UPDATE = 'liveUpdate';
+ };
+
+ /* Initialization */
+ OO.initClass( mw.rcfilters.Controller );
+
+ /**
+ * Initialize the filter and parameter states
+ *
+ * @param {Array} filterStructure Filter definition and structure for the model
+ * @param {Object} [namespaceStructure] Namespace definition
+ * @param {Object} [tagList] Tag definition
+ */
+ mw.rcfilters.Controller.prototype.initialize = function ( filterStructure, namespaceStructure, tagList ) {
+ var parsedSavedQueries,
+ displayConfig = mw.config.get( 'StructuredChangeFiltersDisplayConfig' ),
+ controller = this,
+ views = {},
+ items = [],
+ uri = new mw.Uri(),
+ $changesList = $( '.mw-changeslist' ).first().contents();
+
+ // Prepare views
+ if ( namespaceStructure ) {
+ items = [];
+ $.each( namespaceStructure, function ( namespaceID, label ) {
+ // Build and clean up the individual namespace items definition
+ items.push( {
+ name: namespaceID,
+ label: label || mw.msg( 'blanknamespace' ),
+ description: '',
+ identifiers: [
+ ( namespaceID < 0 || namespaceID % 2 === 0 ) ?
+ 'subject' : 'talk'
+ ],
+ cssClass: 'mw-changeslist-ns-' + namespaceID
+ } );
+ } );
+
+ views.namespaces = {
+ title: mw.msg( 'namespaces' ),
+ trigger: ':',
+ groups: [ {
+ // Group definition (single group)
+ name: 'namespace', // parameter name is singular
+ type: 'string_options',
+ title: mw.msg( 'namespaces' ),
+ labelPrefixKey: { 'default': 'rcfilters-tag-prefix-namespace', inverted: 'rcfilters-tag-prefix-namespace-inverted' },
+ separator: ';',
+ fullCoverage: true,
+ filters: items
+ } ]
+ };
+ }
+ if ( tagList ) {
+ views.tags = {
+ title: mw.msg( 'rcfilters-view-tags' ),
+ trigger: '#',
+ groups: [ {
+ // Group definition (single group)
+ name: 'tagfilter', // Parameter name
+ type: 'string_options',
+ title: 'rcfilters-view-tags', // Message key
+ labelPrefixKey: 'rcfilters-tag-prefix-tags',
+ separator: '|',
+ fullCoverage: false,
+ filters: tagList
+ } ]
+ };
+ }
+
+ // Add parameter range operations
+ views.range = {
+ groups: [
+ {
+ name: 'limit',
+ type: 'single_option',
+ title: '', // Because it's a hidden group, this title actually appears nowhere
+ hidden: true,
+ allowArbitrary: true,
+ validate: $.isNumeric,
+ range: {
+ min: 0, // The server normalizes negative numbers to 0 results
+ max: 1000
+ },
+ sortFunc: function ( a, b ) { return Number( a.name ) - Number( b.name ); },
+ 'default': displayConfig.limitDefault,
+ // Temporarily making this not sticky until we resolve the problem
+ // with the misleading preference. Note that if this is to be permanent
+ // we should remove all sticky behavior methods completely
+ // See T172156
+ // isSticky: true,
+ excludedFromSavedQueries: true,
+ filters: displayConfig.limitArray.map( function ( num ) {
+ return controller._createFilterDataFromNumber( num, num );
+ } )
+ },
+ {
+ name: 'days',
+ type: 'single_option',
+ title: '', // Because it's a hidden group, this title actually appears nowhere
+ hidden: true,
+ allowArbitrary: true,
+ validate: $.isNumeric,
+ range: {
+ min: 0,
+ max: displayConfig.maxDays
+ },
+ sortFunc: function ( a, b ) { return Number( a.name ) - Number( b.name ); },
+ numToLabelFunc: function ( i ) {
+ return Number( i ) < 1 ?
+ ( Number( i ) * 24 ).toFixed( 2 ) :
+ Number( i );
+ },
+ 'default': displayConfig.daysDefault,
+ // Temporarily making this not sticky while limit is not sticky, see above
+ // isSticky: true,
+ excludedFromSavedQueries: true,
+ filters: [
+ // Hours (1, 2, 6, 12)
+ 0.04166, 0.0833, 0.25, 0.5
+ // Days
+ ].concat( displayConfig.daysArray )
+ .map( function ( num ) {
+ return controller._createFilterDataFromNumber(
+ num,
+ // Convert fractions of days to number of hours for the labels
+ num < 1 ? Math.round( num * 24 ) : num
+ );
+ } )
+ }
+ ]
+ };
+
+ views.display = {
+ groups: [
+ {
+ name: 'display',
+ type: 'boolean',
+ title: '', // Because it's a hidden group, this title actually appears nowhere
+ hidden: true,
+ isSticky: true,
+ filters: [
+ {
+ name: 'enhanced',
+ 'default': String( mw.user.options.get( 'usenewrc', 0 ) )
+ }
+ ]
+ }
+ ]
+ };
+
+ // Before we do anything, we need to see if we require additional items in the
+ // groups that have 'AllowArbitrary'. For the moment, those are only single_option
+ // groups; if we ever expand it, this might need further generalization:
+ $.each( views, function ( viewName, viewData ) {
+ viewData.groups.forEach( function ( groupData ) {
+ var extraValues = [];
+ if ( groupData.allowArbitrary ) {
+ // If the value in the URI isn't in the group, add it
+ if ( uri.query[ groupData.name ] !== undefined ) {
+ extraValues.push( uri.query[ groupData.name ] );
+ }
+ // If the default value isn't in the group, add it
+ if ( groupData.default !== undefined ) {
+ extraValues.push( String( groupData.default ) );
+ }
+ controller.addNumberValuesToGroup( groupData, extraValues );
+ }
+ } );
+ } );
+
+ // Initialize the model
+ this.filtersModel.initializeFilters( filterStructure, views );
+
+ this._buildBaseFilterState();
+
+ this.uriProcessor = new mw.rcfilters.UriProcessor(
+ this.filtersModel
+ );
+
+ if ( !mw.user.isAnon() ) {
+ try {
+ parsedSavedQueries = JSON.parse( mw.user.options.get( this.savedQueriesPreferenceName ) || '{}' );
+ } catch ( err ) {
+ parsedSavedQueries = {};
+ }
+
+ // The queries are saved in a minimized state, so we need
+ // to send over the base state so the saved queries model
+ // can normalize them per each query item
+ this.savedQueriesModel.initialize(
+ parsedSavedQueries,
+ this._getBaseFilterState(),
+ // This is for backwards compatibility - delete all excluded filter states
+ Object.keys( this.filtersModel.getExcludedFiltersState() )
+ );
+ }
+
+ // Check whether we need to load defaults.
+ // We do this by checking whether the current URI query
+ // contains any parameters recognized by the system.
+ // If it does, we load the given state.
+ // If it doesn't, we have no values at all, and we assume
+ // the user loads the base-page and we load defaults.
+ // Defaults should only be applied on load (if necessary)
+ // or on request
+ this.initializing = true;
+ if (
+ !mw.user.isAnon() && this.savedQueriesModel.getDefault() &&
+ !this.uriProcessor.doesQueryContainRecognizedParams( uri.query )
+ ) {
+ // We have defaults from a saved query.
+ // We will load them straight-forward (as if
+ // they were clicked in the menu) so we trigger
+ // a full ajax request and change of URL
+ this.applySavedQuery( this.savedQueriesModel.getDefault() );
+ } else {
+ // There are either recognized parameters in the URL
+ // or there are none, but there is also no default
+ // saved query (so defaults are from the backend)
+ // We want to update the state but not fetch results
+ // again
+ this.updateStateFromUrl( false );
+
+ // Update the changes list with the existing data
+ // so it gets processed
+ this.changesListModel.update(
+ $changesList.length ? $changesList : 'NO_RESULTS',
+ $( 'fieldset.cloptions' ).first(),
+ true // We're using existing DOM elements
+ );
+ }
+
+ this.initializing = false;
+ this.switchView( 'default' );
+
+ this._scheduleLiveUpdate();
+ };
+
+ /**
+ * Create filter data from a number, for the filters that are numerical value
+ *
+ * @param {Number} num Number
+ * @param {Number} numForDisplay Number for the label
+ * @return {Object} Filter data
+ */
+ mw.rcfilters.Controller.prototype._createFilterDataFromNumber = function ( num, numForDisplay ) {
+ return {
+ name: String( num ),
+ label: mw.language.convertNumber( numForDisplay )
+ };
+ };
+
+ /**
+ * Add an arbitrary values to groups that allow arbitrary values
+ *
+ * @param {Object} groupData Group data
+ * @param {string|string[]} arbitraryValues An array of arbitrary values to add to the group
+ */
+ mw.rcfilters.Controller.prototype.addNumberValuesToGroup = function ( groupData, arbitraryValues ) {
+ var controller = this,
+ normalizeWithinRange = function ( range, val ) {
+ if ( val < range.min ) {
+ return range.min; // Min
+ } else if ( val >= range.max ) {
+ return range.max; // Max
+ }
+ return val;
+ };
+
+ arbitraryValues = Array.isArray( arbitraryValues ) ? arbitraryValues : [ arbitraryValues ];
+
+ // Normalize the arbitrary values and the default value for a range
+ if ( groupData.range ) {
+ arbitraryValues = arbitraryValues.map( function ( val ) {
+ return normalizeWithinRange( groupData.range, val );
+ } );
+
+ // Normalize the default, since that's user defined
+ if ( groupData.default !== undefined ) {
+ groupData.default = String( normalizeWithinRange( groupData.range, groupData.default ) );
+ }
+ }
+
+ // This is only true for single_option group
+ // We assume these are the only groups that will allow for
+ // arbitrary, since it doesn't make any sense for the other
+ // groups.
+ arbitraryValues.forEach( function ( val ) {
+ if (
+ // If the group allows for arbitrary data
+ groupData.allowArbitrary &&
+ // and it is single_option (or string_options, but we
+ // don't have cases of those yet, nor do we plan to)
+ groupData.type === 'single_option' &&
+ // and, if there is a validate method and it passes on
+ // the data
+ ( !groupData.validate || groupData.validate( val ) ) &&
+ // but if that value isn't already in the definition
+ groupData.filters
+ .map( function ( filterData ) {
+ return String( filterData.name );
+ } )
+ .indexOf( String( val ) ) === -1
+ ) {
+ // Add the filter information
+ groupData.filters.push( controller._createFilterDataFromNumber(
+ val,
+ groupData.numToLabelFunc ?
+ groupData.numToLabelFunc( val ) :
+ val
+ ) );
+
+ // If there's a sort function set up, re-sort the values
+ if ( groupData.sortFunc ) {
+ groupData.filters.sort( groupData.sortFunc );
+ }
+ }
+ } );
+ };
+
+ /**
+ * Switch the view of the filters model
+ *
+ * @param {string} view Requested view
+ */
+ mw.rcfilters.Controller.prototype.switchView = function ( view ) {
+ this.filtersModel.switchView( view );
+ };
+
+ /**
+ * Reset to default filters
+ */
+ mw.rcfilters.Controller.prototype.resetToDefaults = function () {
+ this.uriProcessor.updateModelBasedOnQuery( this._getDefaultParams() );
+
+ this.updateChangesList();
+ };
+
+ /**
+ * Check whether the default values of the filters are all false.
+ *
+ * @return {boolean} Defaults are all false
+ */
+ mw.rcfilters.Controller.prototype.areDefaultsEmpty = function () {
+ var defaultFilters = this.filtersModel.getFiltersFromParameters( this._getDefaultParams() );
+
+ this._deleteExcludedValuesFromFilterState( defaultFilters );
+
+ // Defaults can change in a session, so we need to do this every time
+ return Object.keys( defaultFilters ).every( function ( filterName ) {
+ return !defaultFilters[ filterName ];
+ } );
+ };
+
+ /**
+ * Empty all selected filters
+ */
+ mw.rcfilters.Controller.prototype.emptyFilters = function () {
+ var highlightedFilterNames = this.filtersModel
+ .getHighlightedItems()
+ .map( function ( filterItem ) { return { name: filterItem.getName() }; } );
+
+ this.filtersModel.emptyAllFilters();
+ this.filtersModel.clearAllHighlightColors();
+ // Check all filter interactions
+ this.filtersModel.reassessFilterInteractions();
+
+ this.updateChangesList();
+
+ if ( highlightedFilterNames ) {
+ this._trackHighlight( 'clearAll', highlightedFilterNames );
+ }
+ };
+
+ /**
+ * Update the selected state of a filter
+ *
+ * @param {string} filterName Filter name
+ * @param {boolean} [isSelected] Filter selected state
+ */
+ mw.rcfilters.Controller.prototype.toggleFilterSelect = function ( filterName, isSelected ) {
+ var filterItem = this.filtersModel.getItemByName( filterName );
+
+ if ( !filterItem ) {
+ // If no filter was found, break
+ return;
+ }
+
+ isSelected = isSelected === undefined ? !filterItem.isSelected() : isSelected;
+
+ if ( filterItem.isSelected() !== isSelected ) {
+ this.filtersModel.toggleFilterSelected( filterName, isSelected );
+
+ this.updateChangesList();
+
+ // Check filter interactions
+ this.filtersModel.reassessFilterInteractions( filterItem );
+ }
+ };
+
+ /**
+ * Clear both highlight and selection of a filter
+ *
+ * @param {string} filterName Name of the filter item
+ */
+ mw.rcfilters.Controller.prototype.clearFilter = function ( filterName ) {
+ var filterItem = this.filtersModel.getItemByName( filterName ),
+ isHighlighted = filterItem.isHighlighted();
+
+ if ( filterItem.isSelected() || isHighlighted ) {
+ this.filtersModel.clearHighlightColor( filterName );
+ this.filtersModel.toggleFilterSelected( filterName, false );
+ this.updateChangesList();
+ this.filtersModel.reassessFilterInteractions( filterItem );
+
+ // Log filter grouping
+ this.trackFilterGroupings( 'removefilter' );
+ }
+
+ if ( isHighlighted ) {
+ this._trackHighlight( 'clear', filterName );
+ }
+ };
+
+ /**
+ * Toggle the highlight feature on and off
+ */
+ mw.rcfilters.Controller.prototype.toggleHighlight = function () {
+ this.filtersModel.toggleHighlight();
+ this._updateURL();
+
+ if ( this.filtersModel.isHighlightEnabled() ) {
+ mw.hook( 'RcFilters.highlight.enable' ).fire();
+ }
+ };
+
+ /**
+ * Toggle the namespaces inverted feature on and off
+ */
+ mw.rcfilters.Controller.prototype.toggleInvertedNamespaces = function () {
+ this.filtersModel.toggleInvertedNamespaces();
+
+ if (
+ this.filtersModel.getFiltersByView( 'namespaces' ).filter(
+ function ( filterItem ) { return filterItem.isSelected(); }
+ ).length
+ ) {
+ // Only re-fetch results if there are namespace items that are actually selected
+ this.updateChangesList();
+ }
+ };
+
+ /**
+ * Set the highlight color for a filter item
+ *
+ * @param {string} filterName Name of the filter item
+ * @param {string} color Selected color
+ */
+ mw.rcfilters.Controller.prototype.setHighlightColor = function ( filterName, color ) {
+ this.filtersModel.setHighlightColor( filterName, color );
+ this._updateURL();
+ this._trackHighlight( 'set', { name: filterName, color: color } );
+ };
+
+ /**
+ * Clear highlight for a filter item
+ *
+ * @param {string} filterName Name of the filter item
+ */
+ mw.rcfilters.Controller.prototype.clearHighlightColor = function ( filterName ) {
+ this.filtersModel.clearHighlightColor( filterName );
+ this._updateURL();
+ this._trackHighlight( 'clear', filterName );
+ };
+
+ /**
+ * Enable or disable live updates.
+ * @param {boolean} enable True to enable, false to disable
+ */
+ mw.rcfilters.Controller.prototype.toggleLiveUpdate = function ( enable ) {
+ this.changesListModel.toggleLiveUpdate( enable );
+ if ( this.changesListModel.getLiveUpdate() && this.changesListModel.getNewChangesExist() ) {
+ this.updateChangesList( null, this.LIVE_UPDATE );
+ }
+ };
+
+ /**
+ * Set a timeout for the next live update.
+ * @private
+ */
+ mw.rcfilters.Controller.prototype._scheduleLiveUpdate = function () {
+ setTimeout( this._doLiveUpdate.bind( this ), 3000 );
+ };
+
+ /**
+ * Perform a live update.
+ * @private
+ */
+ mw.rcfilters.Controller.prototype._doLiveUpdate = function () {
+ if ( !this._shouldCheckForNewChanges() ) {
+ // skip this turn and check back later
+ this._scheduleLiveUpdate();
+ return;
+ }
+
+ this._checkForNewChanges()
+ .then( function ( newChanges ) {
+ if ( !this._shouldCheckForNewChanges() ) {
+ // by the time the response is received,
+ // it may not be appropriate anymore
+ return;
+ }
+
+ if ( newChanges ) {
+ if ( this.changesListModel.getLiveUpdate() ) {
+ return this.updateChangesList( null, this.LIVE_UPDATE );
+ } else {
+ this.changesListModel.setNewChangesExist( true );
+ }
+ }
+ }.bind( this ) )
+ .always( this._scheduleLiveUpdate.bind( this ) );
+ };
+
+ /**
+ * @return {boolean} It's appropriate to check for new changes now
+ * @private
+ */
+ mw.rcfilters.Controller.prototype._shouldCheckForNewChanges = function () {
+ return !document.hidden &&
+ !this.filtersModel.hasConflict() &&
+ !this.changesListModel.getNewChangesExist() &&
+ !this.updatingChangesList &&
+ this.changesListModel.getNextFrom();
+ };
+
+ /**
+ * Check if new changes, newer than those currently shown, are available
+ *
+ * @return {jQuery.Promise} Promise object that resolves with a bool
+ * specifying if there are new changes or not
+ *
+ * @private
+ */
+ mw.rcfilters.Controller.prototype._checkForNewChanges = function () {
+ var params = {
+ limit: 1,
+ peek: 1, // bypasses ChangesList specific UI
+ from: this.changesListModel.getNextFrom()
+ };
+ return this._queryChangesList( 'liveUpdate', params ).then(
+ function ( data ) {
+ // no result is 204 with the 'peek' param
+ return data.status === 200;
+ }
+ );
+ };
+
+ /**
+ * Show the new changes
+ *
+ * @return {jQuery.Promise} Promise object that resolves after
+ * fetching and showing the new changes
+ */
+ mw.rcfilters.Controller.prototype.showNewChanges = function () {
+ return this.updateChangesList( null, this.SHOW_NEW_CHANGES );
+ };
+
+ /**
+ * Save the current model state as a saved query
+ *
+ * @param {string} [label] Label of the saved query
+ * @param {boolean} [setAsDefault=false] This query should be set as the default
+ */
+ mw.rcfilters.Controller.prototype.saveCurrentQuery = function ( label, setAsDefault ) {
+ var queryID,
+ highlightedItems = {},
+ highlightEnabled = this.filtersModel.isHighlightEnabled(),
+ selectedState = this.filtersModel.getSelectedState();
+
+ // Prepare highlights
+ this.filtersModel.getHighlightedItems().forEach( function ( item ) {
+ highlightedItems[ item.getName() ] = highlightEnabled ?
+ item.getHighlightColor() : null;
+ } );
+ // These are filter states; highlight is stored as boolean
+ highlightedItems.highlight = this.filtersModel.isHighlightEnabled();
+
+ // Delete all excluded filters
+ this._deleteExcludedValuesFromFilterState( selectedState );
+
+ // Add item
+ queryID = this.savedQueriesModel.addNewQuery(
+ label || mw.msg( 'rcfilters-savedqueries-defaultlabel' ),
+ {
+ filters: selectedState,
+ highlights: highlightedItems,
+ invert: this.filtersModel.areNamespacesInverted()
+ }
+ );
+
+ if ( setAsDefault ) {
+ this.savedQueriesModel.setDefault( queryID );
+ }
+
+ // Save item
+ this._saveSavedQueries();
+ };
+
+ /**
+ * Remove a saved query
+ *
+ * @param {string} queryID Query id
+ */
+ mw.rcfilters.Controller.prototype.removeSavedQuery = function ( queryID ) {
+ this.savedQueriesModel.removeQuery( queryID );
+
+ this._saveSavedQueries();
+ };
+
+ /**
+ * Rename a saved query
+ *
+ * @param {string} queryID Query id
+ * @param {string} newLabel New label for the query
+ */
+ mw.rcfilters.Controller.prototype.renameSavedQuery = function ( queryID, newLabel ) {
+ var queryItem = this.savedQueriesModel.getItemByID( queryID );
+
+ if ( queryItem ) {
+ queryItem.updateLabel( newLabel );
+ }
+ this._saveSavedQueries();
+ };
+
+ /**
+ * Set a saved query as default
+ *
+ * @param {string} queryID Query Id. If null is given, default
+ * query is reset.
+ */
+ mw.rcfilters.Controller.prototype.setDefaultSavedQuery = function ( queryID ) {
+ this.savedQueriesModel.setDefault( queryID );
+ this._saveSavedQueries();
+ };
+
+ /**
+ * Load a saved query
+ *
+ * @param {string} queryID Query id
+ */
+ mw.rcfilters.Controller.prototype.applySavedQuery = function ( queryID ) {
+ var data, highlights,
+ queryItem = this.savedQueriesModel.getItemByID( queryID ),
+ currentMatchingQuery = this.findQueryMatchingCurrentState();
+
+ if (
+ queryItem &&
+ (
+ // If there's already a query, don't reload it
+ // if it's the same as the one that already exists
+ !currentMatchingQuery ||
+ currentMatchingQuery.getID() !== queryItem.getID()
+ )
+ ) {
+ data = queryItem.getData();
+ highlights = data.highlights;
+
+ // Backwards compatibility; initial version mispelled 'highlight' with 'highlights'
+ highlights.highlight = highlights.highlights || highlights.highlight;
+
+ // Update model state from filters
+ this.filtersModel.toggleFiltersSelected(
+ // Merge filters with excluded values
+ $.extend( true, {}, data.filters, this.filtersModel.getExcludedFiltersState() )
+ );
+
+ // Update namespace inverted property
+ this.filtersModel.toggleInvertedNamespaces( !!Number( data.invert ) );
+
+ // Update highlight state
+ this.filtersModel.toggleHighlight( !!Number( highlights.highlight ) );
+ this.filtersModel.getItems().forEach( function ( filterItem ) {
+ var color = highlights[ filterItem.getName() ];
+ if ( color ) {
+ filterItem.setHighlightColor( color );
+ } else {
+ filterItem.clearHighlightColor();
+ }
+ } );
+
+ // Check all filter interactions
+ this.filtersModel.reassessFilterInteractions();
+
+ this.updateChangesList();
+
+ // Log filter grouping
+ this.trackFilterGroupings( 'savedfilters' );
+ }
+ };
+
+ /**
+ * Check whether the current filter and highlight state exists
+ * in the saved queries model.
+ *
+ * @return {boolean} Query exists
+ */
+ mw.rcfilters.Controller.prototype.findQueryMatchingCurrentState = function () {
+ var highlightedItems = {},
+ selectedState = this.filtersModel.getSelectedState();
+
+ // Prepare highlights of the current query
+ this.filtersModel.getItemsSupportingHighlights().forEach( function ( item ) {
+ highlightedItems[ item.getName() ] = item.getHighlightColor();
+ } );
+ highlightedItems.highlight = this.filtersModel.isHighlightEnabled();
+
+ // Remove anything that should be excluded from the saved query
+ // this includes sticky filters and filters marked with 'excludedFromSavedQueries'
+ this._deleteExcludedValuesFromFilterState( selectedState );
+
+ return this.savedQueriesModel.findMatchingQuery(
+ {
+ filters: selectedState,
+ highlights: highlightedItems,
+ invert: this.filtersModel.areNamespacesInverted()
+ }
+ );
+ };
+
+ /**
+ * Delete sticky filters from given object
+ *
+ * @param {Object} filterState Filter state
+ */
+ mw.rcfilters.Controller.prototype._deleteExcludedValuesFromFilterState = function ( filterState ) {
+ // Remove excluded filters
+ $.each( this.filtersModel.getExcludedFiltersState(), function ( filterName ) {
+ delete filterState[ filterName ];
+ } );
+ };
+
+ /**
+ * Get an object representing the base state of parameters
+ * and highlights.
+ *
+ * This is meant to make sure that the saved queries that are
+ * in memory are always the same structure as what we would get
+ * by calling the current model's "getSelectedState" and by checking
+ * highlight items.
+ *
+ * In cases where a user saved a query when the system had a certain
+ * set of filters, and then a filter was added to the system, we want
+ * to make sure that the stored queries can still be comparable to
+ * the current state, which means that we need the base state for
+ * two operations:
+ *
+ * - Saved queries are stored in "minimal" view (only changed filters
+ * are stored); When we initialize the system, we merge each minimal
+ * query with the base state (using 'getNormalizedFilters') so all
+ * saved queries have the exact same structure as what we would get
+ * by checking the getSelectedState of the filter.
+ * - When we save the queries, we minimize the object to only represent
+ * whatever has actually changed, rather than store the entire
+ * object. To check what actually is different so we can store it,
+ * we need to obtain a base state to compare against, this is
+ * what #_getMinimalFilterList does
+ */
+ mw.rcfilters.Controller.prototype._buildBaseFilterState = function () {
+ var defaultParams = this.filtersModel.getDefaultParams(),
+ highlightedItems = {};
+
+ // Prepare highlights
+ this.filtersModel.getItemsSupportingHighlights().forEach( function ( item ) {
+ highlightedItems[ item.getName() ] = null;
+ } );
+ highlightedItems.highlight = false;
+
+ this.baseFilterState = {
+ filters: this.filtersModel.getFiltersFromParameters( defaultParams ),
+ highlights: highlightedItems,
+ invert: false
+ };
+ };
+
+ /**
+ * Get an object representing the base filter state of both
+ * filters and highlights. The structure is similar to what we use
+ * to store each query in the saved queries object:
+ * {
+ * filters: {
+ * filterName: (bool)
+ * },
+ * highlights: {
+ * filterName: (string|null)
+ * }
+ * }
+ *
+ * @return {Object} Object representing the base state of
+ * parameters and highlights
+ */
+ mw.rcfilters.Controller.prototype._getBaseFilterState = function () {
+ return this.baseFilterState;
+ };
+
+ /**
+ * Get an object that holds only the parameters and highlights that have
+ * values different than the base default value.
+ *
+ * This is the reverse of the normalization we do initially on loading and
+ * initializing the saved queries model.
+ *
+ * @param {Object} valuesObject Object representing the state of both
+ * filters and highlights in its normalized version, to be minimized.
+ * @return {Object} Minimal filters and highlights list
+ */
+ mw.rcfilters.Controller.prototype._getMinimalFilterList = function ( valuesObject ) {
+ var result = { filters: {}, highlights: {}, invert: valuesObject.invert },
+ baseState = this._getBaseFilterState();
+
+ // XOR results
+ $.each( valuesObject.filters, function ( name, value ) {
+ if ( baseState.filters !== undefined && baseState.filters[ name ] !== value ) {
+ result.filters[ name ] = value;
+ }
+ } );
+
+ $.each( valuesObject.highlights, function ( name, value ) {
+ if ( baseState.highlights !== undefined && baseState.highlights[ name ] !== value ) {
+ result.highlights[ name ] = value;
+ }
+ } );
+
+ return result;
+ };
+
+ /**
+ * Save the current state of the saved queries model with all
+ * query item representation in the user settings.
+ */
+ mw.rcfilters.Controller.prototype._saveSavedQueries = function () {
+ var stringified,
+ state = this.savedQueriesModel.getState(),
+ controller = this;
+
+ // Minimize before save
+ $.each( state.queries, function ( queryID, info ) {
+ state.queries[ queryID ].data = controller._getMinimalFilterList( info.data );
+ } );
+
+ // Stringify state
+ stringified = JSON.stringify( state );
+
+ if ( $.byteLength( stringified ) > 65535 ) {
+ // Sanity check, since the preference can only hold that.
+ return;
+ }
+
+ // Save the preference
+ new mw.Api().saveOption( this.savedQueriesPreferenceName, stringified );
+ // Update the preference for this session
+ mw.user.options.set( this.savedQueriesPreferenceName, stringified );
+ };
+
+ /**
+ * Update sticky preferences with current model state
+ */
+ mw.rcfilters.Controller.prototype.updateStickyPreferences = function () {
+ // Update default sticky values with selected, whether they came from
+ // the initial defaults or from the URL value that is being normalized
+ this.updateDaysDefault( this.filtersModel.getGroup( 'days' ).getSelectedItems()[ 0 ].getParamName() );
+ this.updateLimitDefault( this.filtersModel.getGroup( 'limit' ).getSelectedItems()[ 0 ].getParamName() );
+
+ // TODO: Make these automatic by having the model go over sticky
+ // items and update their default values automatically
+ };
+
+ /**
+ * Update the limit default value
+ *
+ * param {number} newValue New value
+ */
+ mw.rcfilters.Controller.prototype.updateLimitDefault = function ( /* newValue */ ) {
+ // HACK: Temporarily remove this from being sticky
+ // See T172156
+
+ /*
+ if ( !$.isNumeric( newValue ) ) {
+ return;
+ }
+
+ newValue = Number( newValue );
+
+ if ( mw.user.options.get( 'rcfilters-rclimit' ) !== newValue ) {
+ // Save the preference
+ new mw.Api().saveOption( 'rcfilters-rclimit', newValue );
+ // Update the preference for this session
+ mw.user.options.set( 'rcfilters-rclimit', newValue );
+ }
+ */
+ return;
+ };
+
+ /**
+ * Update the days default value
+ *
+ * param {number} newValue New value
+ */
+ mw.rcfilters.Controller.prototype.updateDaysDefault = function ( /* newValue */ ) {
+ // HACK: Temporarily remove this from being sticky
+ // See T172156
+
+ /*
+ if ( !$.isNumeric( newValue ) ) {
+ return;
+ }
+
+ newValue = Number( newValue );
+
+ if ( mw.user.options.get( 'rcdays' ) !== newValue ) {
+ // Save the preference
+ new mw.Api().saveOption( 'rcdays', newValue );
+ // Update the preference for this session
+ mw.user.options.set( 'rcdays', newValue );
+ }
+ */
+ return;
+ };
+
+ /**
+ * Update the group by page default value
+ *
+ * @param {number} newValue New value
+ */
+ mw.rcfilters.Controller.prototype.updateGroupByPageDefault = function ( newValue ) {
+ if ( !$.isNumeric( newValue ) ) {
+ return;
+ }
+
+ newValue = Number( newValue );
+
+ if ( mw.user.options.get( 'usenewrc' ) !== newValue ) {
+ // Save the preference
+ new mw.Api().saveOption( 'usenewrc', newValue );
+ // Update the preference for this session
+ mw.user.options.set( 'usenewrc', newValue );
+ }
+ };
+
+ /**
+ * Synchronize the URL with the current state of the filters
+ * without adding an history entry.
+ */
+ mw.rcfilters.Controller.prototype.replaceUrl = function () {
+ mw.rcfilters.UriProcessor.static.replaceState( this._getUpdatedUri() );
+ };
+
+ /**
+ * Update filter state (selection and highlighting) based
+ * on current URL values.
+ *
+ * @param {boolean} [fetchChangesList=true] Fetch new results into the changes
+ * list based on the updated model.
+ */
+ mw.rcfilters.Controller.prototype.updateStateFromUrl = function ( fetchChangesList ) {
+ fetchChangesList = fetchChangesList === undefined ? true : !!fetchChangesList;
+
+ this.uriProcessor.updateModelBasedOnQuery( new mw.Uri().query );
+
+ // Update the sticky preferences, in case we received a value
+ // from the URL
+ this.updateStickyPreferences();
+
+ // Only update and fetch new results if it is requested
+ if ( fetchChangesList ) {
+ this.updateChangesList();
+ }
+ };
+
+ /**
+ * Update the list of changes and notify the model
+ *
+ * @param {Object} [params] Extra parameters to add to the API call
+ * @param {string} [updateMode='filterChange'] One of 'filterChange', 'liveUpdate', 'showNewChanges', 'markSeen'
+ * @return {jQuery.Promise} Promise that is resolved when the update is complete
+ */
+ mw.rcfilters.Controller.prototype.updateChangesList = function ( params, updateMode ) {
+ updateMode = updateMode === undefined ? this.FILTER_CHANGE : updateMode;
+
+ if ( updateMode === this.FILTER_CHANGE ) {
+ this._updateURL( params );
+ }
+ if ( updateMode === this.FILTER_CHANGE || updateMode === this.SHOW_NEW_CHANGES ) {
+ this.changesListModel.invalidate();
+ }
+ this.changesListModel.setNewChangesExist( false );
+ this.updatingChangesList = true;
+ return this._fetchChangesList()
+ .then(
+ // Success
+ function ( pieces ) {
+ var $changesListContent = pieces.changes,
+ $fieldset = pieces.fieldset;
+ this.changesListModel.update(
+ $changesListContent,
+ $fieldset,
+ false,
+ // separator between old and new changes
+ updateMode === this.SHOW_NEW_CHANGES || updateMode === this.LIVE_UPDATE
+ );
+ }.bind( this )
+ // Do nothing for failure
+ )
+ .always( function () {
+ this.updatingChangesList = false;
+ }.bind( this ) );
+ };
+
+ /**
+ * Get an object representing the default parameter state, whether
+ * it is from the model defaults or from the saved queries.
+ *
+ * @return {Object} Default parameters
+ */
+ mw.rcfilters.Controller.prototype._getDefaultParams = function () {
+ var data, queryHighlights,
+ savedParams = {},
+ savedHighlights = {},
+ defaultSavedQueryItem = !mw.user.isAnon() && this.savedQueriesModel.getItemByID( this.savedQueriesModel.getDefault() );
+
+ if ( defaultSavedQueryItem ) {
+ data = defaultSavedQueryItem.getData();
+
+ queryHighlights = data.highlights || {};
+ savedParams = this.filtersModel.getParametersFromFilters(
+ $.extend( true, {}, data.filters, this.filtersModel.getStickyFiltersState() )
+ );
+
+ // Translate highlights to parameters
+ savedHighlights.highlight = String( Number( queryHighlights.highlight ) );
+ $.each( queryHighlights, function ( filterName, color ) {
+ if ( filterName !== 'highlights' ) {
+ savedHighlights[ filterName + '_color' ] = color;
+ }
+ } );
+
+ return $.extend( true, {}, savedParams, savedHighlights, { invert: String( Number( data.invert || 0 ) ) } );
+ }
+
+ return this.filtersModel.getDefaultParams();
+ };
+
+ /**
+ * Update the URL of the page to reflect current filters
+ *
+ * This should not be called directly from outside the controller.
+ * If an action requires changing the URL, it should either use the
+ * highlighting actions below, or call #updateChangesList which does
+ * the uri corrections already.
+ *
+ * @param {Object} [params] Extra parameters to add to the API call
+ */
+ mw.rcfilters.Controller.prototype._updateURL = function ( params ) {
+ var currentUri = new mw.Uri(),
+ updatedUri = this._getUpdatedUri();
+
+ updatedUri.extend( params || {} );
+
+ if (
+ this.uriProcessor.getVersion( currentUri.query ) !== 2 ||
+ this.uriProcessor.isNewState( currentUri.query, updatedUri.query )
+ ) {
+ mw.rcfilters.UriProcessor.static.replaceState( updatedUri );
+ }
+ };
+
+ /**
+ * Get an updated mw.Uri object based on the model state
+ *
+ * @return {mw.Uri} Updated Uri
+ */
+ mw.rcfilters.Controller.prototype._getUpdatedUri = function () {
+ var uri = new mw.Uri();
+
+ // Minimize url
+ uri.query = this.uriProcessor.minimizeQuery(
+ $.extend(
+ true,
+ {},
+ // We want to retain unrecognized params
+ // The uri params from model will override
+ // any recognized value in the current uri
+ // query, retain unrecognized params, and
+ // the result will then be minimized
+ uri.query,
+ this.uriProcessor.getUriParametersFromModel(),
+ { urlversion: '2' }
+ )
+ );
+
+ return uri;
+ };
+
+ /**
+ * Query the list of changes from the server for the current filters
+ *
+ * @param {string} counterId Id for this request. To allow concurrent requests
+ * not to invalidate each other.
+ * @param {Object} [params={}] Parameters to add to the query
+ *
+ * @return {jQuery.Promise} Promise object resolved with { content, status }
+ */
+ mw.rcfilters.Controller.prototype._queryChangesList = function ( counterId, params ) {
+ var uri = this._getUpdatedUri(),
+ stickyParams = this.filtersModel.getStickyParams(),
+ requestId,
+ latestRequest;
+
+ params = params || {};
+ params.action = 'render'; // bypasses MW chrome
+
+ uri.extend( params );
+
+ this.requestCounter[ counterId ] = this.requestCounter[ counterId ] || 0;
+ requestId = ++this.requestCounter[ counterId ];
+ latestRequest = function () {
+ return requestId === this.requestCounter[ counterId ];
+ }.bind( this );
+
+ // Sticky parameters override the URL params
+ // this is to make sure that whether we represent
+ // the sticky params in the URL or not (they may
+ // be normalized out) the sticky parameters are
+ // always being sent to the server with their
+ // current/default values
+ uri.extend( stickyParams );
+
+ return $.ajax( uri.toString(), { contentType: 'html' } )
+ .then(
+ function ( content, message, jqXHR ) {
+ if ( !latestRequest() ) {
+ return $.Deferred().reject();
+ }
+ return {
+ content: content,
+ status: jqXHR.status
+ };
+ },
+ // RC returns 404 when there is no results
+ function ( jqXHR ) {
+ if ( latestRequest() ) {
+ return $.Deferred().resolve(
+ {
+ content: jqXHR.responseText,
+ status: jqXHR.status
+ }
+ ).promise();
+ }
+ }
+ );
+ };
+
+ /**
+ * Fetch the list of changes from the server for the current filters
+ *
+ * @return {jQuery.Promise} Promise object that will resolve with the changes list
+ * and the fieldset.
+ */
+ mw.rcfilters.Controller.prototype._fetchChangesList = function () {
+ return this._queryChangesList( 'updateChangesList' )
+ .then(
+ function ( data ) {
+ var $parsed = $( '<div>' ).append( $( $.parseHTML( data.content ) ) ),
+ pieces = {
+ // Changes list
+ changes: $parsed.find( '.mw-changeslist' ).first().contents(),
+ // Fieldset
+ fieldset: $parsed.find( 'fieldset.cloptions' ).first()
+ };
+
+ if ( pieces.changes.length === 0 ) {
+ pieces.changes = 'NO_RESULTS';
+ }
+
+ return pieces;
+ }
+ );
+ };
+
+ /**
+ * Track usage of highlight feature
+ *
+ * @param {string} action
+ * @param {Array|Object|string} filters
+ */
+ mw.rcfilters.Controller.prototype._trackHighlight = function ( action, filters ) {
+ filters = typeof filters === 'string' ? { name: filters } : filters;
+ filters = !Array.isArray( filters ) ? [ filters ] : filters;
+ mw.track(
+ 'event.ChangesListHighlights',
+ {
+ action: action,
+ filters: filters,
+ userId: mw.user.getId()
+ }
+ );
+ };
+
+ /**
+ * Track filter grouping usage
+ *
+ * @param {string} action Action taken
+ */
+ mw.rcfilters.Controller.prototype.trackFilterGroupings = function ( action ) {
+ var controller = this,
+ rightNow = new Date().getTime(),
+ randomIdentifier = String( mw.user.sessionId() ) + String( rightNow ) + String( Math.random() ),
+ // Get all current filters
+ filters = this.filtersModel.getSelectedItems().map( function ( item ) {
+ return item.getName();
+ } );
+
+ action = action || 'filtermenu';
+
+ // Check if these filters were the ones we just logged previously
+ // (Don't log the same grouping twice, in case the user opens/closes)
+ // the menu without action, or with the same result
+ if (
+ // Only log if the two arrays are different in size
+ filters.length !== this.prevLoggedItems.length ||
+ // Or if any filters are not the same as the cached filters
+ filters.some( function ( filterName ) {
+ return controller.prevLoggedItems.indexOf( filterName ) === -1;
+ } ) ||
+ // Or if any cached filters are not the same as given filters
+ this.prevLoggedItems.some( function ( filterName ) {
+ return filters.indexOf( filterName ) === -1;
+ } )
+ ) {
+ filters.forEach( function ( filterName ) {
+ mw.track(
+ 'event.ChangesListFilterGrouping',
+ {
+ action: action,
+ groupIdentifier: randomIdentifier,
+ filter: filterName,
+ userId: mw.user.getId()
+ }
+ );
+ } );
+
+ // Cache the filter names
+ this.prevLoggedItems = filters;
+ }
+ };
+
+ /**
+ * Mark all changes as seen on Watchlist
+ */
+ mw.rcfilters.Controller.prototype.markAllChangesAsSeen = function () {
+ var api = new mw.Api();
+ api.postWithToken( 'csrf', {
+ formatversion: 2,
+ action: 'setnotificationtimestamp',
+ entirewatchlist: true
+ } ).then( function () {
+ this.updateChangesList( null, 'markSeen' );
+ }.bind( this ) );
+ };
+}( mediaWiki, jQuery ) );