Merge "RCFilters: Make frontend URL follow backend rules and add 'urlversion=2'"
authorjenkins-bot <jenkins-bot@gerrit.wikimedia.org>
Wed, 14 Jun 2017 19:31:15 +0000 (19:31 +0000)
committerGerrit Code Review <gerrit@wikimedia.org>
Wed, 14 Jun 2017 19:31:16 +0000 (19:31 +0000)
resources/Resources.php
resources/src/mediawiki.rcfilters/dm/mw.rcfilters.dm.FilterGroup.js
resources/src/mediawiki.rcfilters/mw.rcfilters.Controller.js
resources/src/mediawiki.rcfilters/mw.rcfilters.UriProcessor.js [new file with mode: 0644]
resources/src/mediawiki.rcfilters/mw.rcfilters.init.js
tests/qunit/QUnitTestResources.php
tests/qunit/suites/resources/mediawiki.rcfilters/UriProcessor.test.js [new file with mode: 0644]

index 77c8af8..cc52438 100644 (file)
@@ -1751,6 +1751,7 @@ return [
                        'resources/src/mediawiki.rcfilters/dm/mw.rcfilters.dm.SavedQueriesModel.js',
                        'resources/src/mediawiki.rcfilters/dm/mw.rcfilters.dm.ChangesListViewModel.js',
                        'resources/src/mediawiki.rcfilters/mw.rcfilters.Controller.js',
+                       'resources/src/mediawiki.rcfilters/mw.rcfilters.UriProcessor.js',
                ],
                'dependencies' => [
                        'oojs',
index 59c0a19..dd698cd 100644 (file)
@@ -75,8 +75,8 @@
                        var subsetNames = [],
                                filterItem = new mw.rcfilters.dm.FilterItem( filter.name, model, {
                                        group: model.getName(),
-                                       label: mw.msg( filter.label ),
-                                       description: mw.msg( filter.description ),
+                                       label: filter.label ? mw.msg( filter.label ) : filter.name,
+                                       description: filter.description ? mw.msg( filter.description ) : '',
                                        cssClass: filter.cssClass
                                } );
 
index 375b68b..c5672ae 100644 (file)
@@ -13,7 +13,7 @@
                this.savedQueriesModel = savedQueriesModel;
                this.requestCounter = 0;
                this.baseFilterState = {};
-               this.emptyParameterState = {};
+               this.uriProcessor = null;
                this.initializing = false;
        };
 
@@ -26,7 +26,7 @@
         * @param {Array} filterStructure Filter definition and structure for the model
         */
        mw.rcfilters.Controller.prototype.initialize = function ( filterStructure ) {
-               var parsedSavedQueries, validParameterNames,
+               var parsedSavedQueries,
                        uri = new mw.Uri(),
                        $changesList = $( '.mw-changeslist' ).first().contents();
 
                this.filtersModel.initializeFilters( filterStructure );
 
                this._buildBaseFilterState();
-               this._buildEmptyParameterState();
-               validParameterNames = Object.keys( this._getEmptyParameterState() )
-                       .filter( function ( param ) {
-                               // Remove 'highlight' parameter from this check;
-                               // if it's the only parameter in the URL we still
-                               // want to consider the URL 'empty' for defaults to load
-                               return param !== 'highlight';
-                       } );
+               this.uriProcessor = new mw.rcfilters.UriProcessor(
+                       this.filtersModel
+               );
 
                try {
                        parsedSavedQueries = JSON.parse( mw.user.options.get( 'rcfilters-saved-queries' ) || '{}' );
                // 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 (
-                       Object.keys( uri.query ).some( function ( parameter ) {
-                               return validParameterNames.indexOf( parameter ) > -1;
-                       } )
+                       this.savedQueriesModel.getDefault() &&
+                       !this.uriProcessor.doesQueryContainRecognizedParams( uri.query )
                ) {
-                       // There are parameters in the url, update model state
-                       this.updateStateBasedOnUrl();
+                       // 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 {
-                       this.initializing = true;
-                       // No valid parameters are given, load defaults
-                       this._updateModelState(
-                               $.extend(
-                                       true,
-                                       // We've ignored the highlight parameter for the sake
-                                       // of seeing whether we need to apply defaults - but
-                                       // while we do load the defaults, we still want to retain
-                                       // the actual value given in the URL for it on top of the
-                                       // defaults
-                                       { highlight: String( Number( uri.query.highlight ) ) },
-                                       this._getDefaultParams()
-                               )
+                       // 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.rcoptions' ).first()
                        );
-                       this.updateChangesList();
-                       this.initializing = false;
                }
-
-               // Update the changes list with the existing data
-               // so it gets processed
-               this.changesListModel.update(
-                       $changesList.length ? $changesList : 'NO_RESULTS',
-                       $( 'fieldset.rcoptions' ).first()
-               );
+               this.initializing = false;
        };
 
        /**
         * Reset to default filters
         */
        mw.rcfilters.Controller.prototype.resetToDefaults = function () {
-               this._updateModelState( $.extend( true, { highlight: '0' }, this._getDefaultParams() ) );
+               this.uriProcessor.updateModelBasedOnQuery( this._getDefaultParams() );
                this.updateChangesList();
        };
 
                };
        };
 
-       /**
-        * Build an empty representation of the parameters, where all parameters
-        * are either set to '0' or '' depending on their type.
-        * This must run during initialization, before highlights are set.
-        */
-       mw.rcfilters.Controller.prototype._buildEmptyParameterState = function () {
-               var emptyParams = this.filtersModel.getParametersFromFilters( {} ),
-                       emptyHighlights = this.filtersModel.getHighlightParameters();
-
-               this.emptyParameterState = $.extend(
-                       true,
-                       {},
-                       emptyParams,
-                       emptyHighlights,
-                       { highlight: '0' }
-               );
-       };
-
        /**
         * Get an object representing the base filter state of both
         * filters and highlights. The structure is similar to what we use
                return this.baseFilterState;
        };
 
-       /**
-        * Get an object representing the base state of parameters
-        * and highlights. The structure is similar to what we use
-        * to store each query in the saved queries object:
-        * {
-        *    param1: "value",
-        *    param2: "value1|value2"
-        * }
-        *
-        * @return {Object} Object representing the base state of
-        *  parameters and highlights
-        */
-       mw.rcfilters.Controller.prototype._getEmptyParameterState = function () {
-               return this.emptyParameterState;
-       };
-
        /**
         * Get an object that holds only the parameters and highlights that have
         * values different than the base default value.
         * without adding an history entry.
         */
        mw.rcfilters.Controller.prototype.replaceUrl = function () {
-               window.history.replaceState(
-                       { tag: 'rcfilters' },
-                       document.title,
-                       this._getUpdatedUri().toString()
-               );
+               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.updateStateBasedOnUrl = function () {
-               var uri = new mw.Uri();
+       mw.rcfilters.Controller.prototype.updateStateFromUrl = function ( fetchChangesList ) {
+               fetchChangesList = fetchChangesList === undefined ? true : !!fetchChangesList;
 
-               this._updateModelState( uri.query );
-               this.updateChangesList();
+               this.uriProcessor.updateModelBasedOnQuery( new mw.Uri().query );
+
+               // Only update and fetch new results if it is requested
+               if ( fetchChangesList ) {
+                       this.updateChangesList();
+               }
        };
 
        /**
        };
 
        /**
-        * Update the model state from given the given parameters.
-        *
-        * This is an internal method, and should only be used from inside
-        * the controller.
+        * Get an object representing the default parameter state, whether
+        * it is from the model defaults or from the saved queries.
         *
-        * @param {Object} parameters Object representing the parameters for
-        *  filters and highlights
+        * @return {Object} Default parameters
         */
-       mw.rcfilters.Controller.prototype._updateModelState = function ( parameters ) {
-               // Update filter states
-               this.filtersModel.toggleFiltersSelected(
-                       this.filtersModel.getFiltersFromParameters(
-                               parameters
-                       )
-               );
+       mw.rcfilters.Controller.prototype._getDefaultParams = function () {
+               var data, queryHighlights,
+                       savedParams = {},
+                       savedHighlights = {},
+                       defaultSavedQueryItem = this.savedQueriesModel.getItemByID( this.savedQueriesModel.getDefault() );
 
-               // Update highlight state
-               this.filtersModel.toggleHighlight( !!Number( parameters.highlight ) );
-               this.filtersModel.getItems().forEach( function ( filterItem ) {
-                       var color = parameters[ filterItem.getName() + '_color' ];
-                       if ( color ) {
-                               filterItem.setHighlightColor( color );
-                       } else {
-                               filterItem.clearHighlightColor();
-                       }
-               } );
+               if ( mw.config.get( 'wgStructuredChangeFiltersEnableSaving' ) &&
+                       defaultSavedQueryItem ) {
 
-               // Check all filter interactions
-               this.filtersModel.reassessFilterInteractions();
+                       data = defaultSavedQueryItem.getData();
+
+                       queryHighlights = data.highlights || {};
+                       savedParams = this.filtersModel.getParametersFromFilters( data.filters || {} );
+
+                       // 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 );
+               }
+
+               return $.extend(
+                       { highlight: '0' },
+                       this.filtersModel.getDefaultParams()
+               );
        };
 
        /**
         * @param {Object} [params] Extra parameters to add to the API call
         */
        mw.rcfilters.Controller.prototype._updateURL = function ( params ) {
-               var currentFilterState, updatedFilterState, updatedUri,
-                       uri = new mw.Uri(),
-                       notEquivalent = function ( obj1, obj2 ) {
-                               var keys = Object.keys( obj1 ).concat( Object.keys( obj2 ) );
-                               return keys.some( function ( key ) {
-                                       return obj1[ key ] != obj2[ key ]; // eslint-disable-line eqeqeq
-                               } );
-                       };
-
-               params = params || {};
-
-               updatedUri = this._getUpdatedUri();
-               updatedUri.extend( params );
-
-               // Compare states instead of parameters
-               // This will allow us to always have a proper check of whether
-               // the requested new url is one to change or not, regardless of
-               // actual parameter visibility/representation in the URL
-               currentFilterState = this.filtersModel.getFiltersFromParameters( uri.query );
-               updatedFilterState = this.filtersModel.getFiltersFromParameters( updatedUri.query );
-               // HACK: Re-merge extra parameters in
-               // This is a hack and a quickfix; a better, more sustainable
-               // fix is being worked on with a UriProcessor, but for now
-               // we need to make sure the **comparison** of whether currentFilterState
-               // and updatedFilterState differ **includes** the extra parameters in the URL
-               currentFilterState = $.extend( true, {}, uri.query, currentFilterState );
-               updatedFilterState = $.extend( true, {}, updatedUri.query, updatedFilterState );
-
-               // Include highlight states
-               $.extend( true,
-                       currentFilterState,
-                       this.filtersModel.extractHighlightValues( uri.query ),
-                       { highlight: !!Number( uri.query.highlight ) }
-               );
-               $.extend( true,
-                       updatedFilterState,
-                       this.filtersModel.extractHighlightValues( updatedUri.query ),
-                       { highlight: !!Number( updatedUri.query.highlight ) }
-               );
+               var currentUri = new mw.Uri(),
+                       updatedUri = this._getUpdatedUri();
 
-               if ( notEquivalent( currentFilterState, updatedFilterState ) ) {
+               updatedUri.extend( params || {} );
+
+               if (
+                       this.uriProcessor.getVersion( currentUri.query ) !== 2 ||
+                       this.uriProcessor.isNewState( currentUri.query, updatedUri.query )
+               ) {
                        if ( this.initializing ) {
                                // Initially, when we just build the first page load
                                // out of defaults, we want to replace the history
-                               window.history.replaceState( { tag: 'rcfilters' }, document.title, updatedUri.toString() );
+                               mw.rcfilters.UriProcessor.static.replaceState( updatedUri );
                        } else {
-                               window.history.pushState( { tag: 'rcfilters' }, document.title, updatedUri.toString() );
+                               mw.rcfilters.UriProcessor.static.pushState( updatedUri );
                        }
                }
        };
         * @return {mw.Uri} Updated Uri
         */
        mw.rcfilters.Controller.prototype._getUpdatedUri = function () {
-               var uri = new mw.Uri(),
-                       highlightParams = this.filtersModel.getHighlightParameters(),
-                       modelParameters = this.filtersModel.getParametersFromFilters(),
-                       baseParams = this._getEmptyParameterState();
-
-               // Minimize values of the model parameters; show only the values that
-               // are non-zero. We assume that all parameters that are not literally
-               // showing in the URL are set to zero or empty
-               $.each( modelParameters, function ( paramName, value ) {
-                       if ( baseParams[ paramName ] !== value ) {
-                               uri.query[ paramName ] = value;
-                       } else {
-                               // We need to remove this value from the url
-                               delete uri.query[ paramName ];
-                       }
-               } );
+               var uri = new mw.Uri();
 
-               // highlight params
-               if ( this.filtersModel.isHighlightEnabled() ) {
-                       uri.query.highlight = Number( this.filtersModel.isHighlightEnabled() );
-               } else {
-                       delete uri.query.highlight;
-               }
-               $.each( highlightParams, function ( paramName, value ) {
-                       // Only output if it is different than the base parameters
-                       if ( baseParams[ paramName ] !== value ) {
-                               uri.query[ paramName ] = value;
-                       } else {
-                               delete uri.query[ paramName ];
-                       }
-               } );
+               // 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;
        };
diff --git a/resources/src/mediawiki.rcfilters/mw.rcfilters.UriProcessor.js b/resources/src/mediawiki.rcfilters/mw.rcfilters.UriProcessor.js
new file mode 100644 (file)
index 0000000..a691c11
--- /dev/null
@@ -0,0 +1,267 @@
+( function ( mw, $ ) {
+       /* eslint no-underscore-dangle: "off" */
+       /**
+        * URI Processor for RCFilters
+        *
+        * @param {mw.rcfilters.dm.FiltersViewModel} filtersModel Filters view model
+        */
+       mw.rcfilters.UriProcessor = function MwRcfiltersController( filtersModel ) {
+               this.emptyParameterState = {};
+               this.filtersModel = filtersModel;
+
+               // Initialize
+               this._buildEmptyParameterState();
+       };
+
+       /* Initialization */
+       OO.initClass( mw.rcfilters.UriProcessor );
+
+       /* Static methods */
+
+       /**
+        * Replace the url history through replaceState
+        *
+        * @param {mw.Uri} newUri New URI to replace
+        */
+       mw.rcfilters.UriProcessor.static.replaceState = function ( newUri ) {
+               window.history.replaceState(
+                       { tag: 'rcfilters' },
+                       document.title,
+                       newUri.toString()
+               );
+       };
+
+       /**
+        * Push the url to history through pushState
+        *
+        * @param {mw.Uri} newUri New URI to push
+        */
+       mw.rcfilters.UriProcessor.static.pushState = function ( newUri ) {
+               window.history.pushState(
+                       { tag: 'rcfilters' },
+                       document.title,
+                       newUri.toString()
+               );
+       };
+
+       /* Methods */
+
+       /**
+        * Get the version that this URL query is tagged with.
+        *
+        * @param {Object} [uriQuery] URI query
+        * @return {number} URL version
+        */
+       mw.rcfilters.UriProcessor.prototype.getVersion = function ( uriQuery ) {
+               uriQuery = uriQuery || new mw.Uri().query;
+
+               return Number( uriQuery.urlversion || 1 );
+       };
+
+       /**
+        * Update the filters model based on the URI query
+        * This happens on initialization, and from this moment on,
+        * we consider the system synchronized, and the model serves
+        * as the source of truth for the URL.
+        *
+        * This methods should only be called once on initialiation.
+        * After initialization, the model updates the URL, not the
+        * other way around.
+        *
+        * @param {Object} [uriQuery] URI query
+        */
+       mw.rcfilters.UriProcessor.prototype.updateModelBasedOnQuery = function ( uriQuery ) {
+               var parameters = this._getNormalizedQueryParams( uriQuery || new mw.Uri().query );
+
+               // Update filter states
+               this.filtersModel.toggleFiltersSelected(
+                       this.filtersModel.getFiltersFromParameters(
+                               parameters
+                       )
+               );
+
+               // Update highlight state
+               this.filtersModel.toggleHighlight( !!Number( parameters.highlight ) );
+               this.filtersModel.getItems().forEach( function ( filterItem ) {
+                       var color = parameters[ filterItem.getName() + '_color' ];
+                       if ( color ) {
+                               filterItem.setHighlightColor( color );
+                       } else {
+                               filterItem.clearHighlightColor();
+                       }
+               } );
+
+               // Check all filter interactions
+               this.filtersModel.reassessFilterInteractions();
+       };
+
+       /**
+        * Get parameters representing the current state of the model
+        *
+        * @return {Object} Uri query parameters
+        */
+       mw.rcfilters.UriProcessor.prototype.getUriParametersFromModel = function () {
+               return $.extend(
+                       true,
+                       {},
+                       this.filtersModel.getParametersFromFilters(),
+                       this.filtersModel.getHighlightParameters(),
+                       { highlight: String( Number( this.filtersModel.isHighlightEnabled() ) ) }
+               );
+       };
+
+       /**
+        * Build the full parameter representation based on given query parameters
+        *
+        * @private
+        * @param {Object} uriQuery Given URI query
+        * @return {Object} Full parameter state representing the URI query
+        */
+       mw.rcfilters.UriProcessor.prototype._expandModelParameters = function ( uriQuery ) {
+               var filterRepresentation = this.filtersModel.getFiltersFromParameters( uriQuery );
+
+               return $.extend( true,
+                       {},
+                       uriQuery,
+                       this.filtersModel.getParametersFromFilters( filterRepresentation ),
+                       this.filtersModel.extractHighlightValues( uriQuery ),
+                       { highlight: String( Number( uriQuery.highlight ) ) }
+               );
+       };
+
+       /**
+        * Compare two URI queries to decide whether they are different
+        * enough to represent a new state.
+        *
+        * @param {Object} currentUriQuery Current Uri query
+        * @param {Object} updatedUriQuery Updated Uri query
+        * @return {boolean} This is a new state
+        */
+       mw.rcfilters.UriProcessor.prototype.isNewState = function ( currentUriQuery, updatedUriQuery ) {
+               var currentParamState, updatedParamState,
+                       notEquivalent = function ( obj1, obj2 ) {
+                               var keys = Object.keys( obj1 ).concat( Object.keys( obj2 ) );
+                               return keys.some( function ( key ) {
+                                       return obj1[ key ] != obj2[ key ]; // eslint-disable-line eqeqeq
+                               } );
+                       };
+
+               // Compare states instead of parameters
+               // This will allow us to always have a proper check of whether
+               // the requested new url is one to change or not, regardless of
+               // actual parameter visibility/representation in the URL
+               currentParamState = this._expandModelParameters( currentUriQuery );
+               updatedParamState = this._expandModelParameters( updatedUriQuery );
+
+               return notEquivalent( currentParamState, updatedParamState );
+       };
+
+       /**
+        * Check whether the given query has parameters that are
+        * recognized as parameters we should load the system with
+        *
+        * @param {mw.Uri} [uriQuery] Given URI query
+        * @return {boolean} Query contains valid recognized parameters
+        */
+       mw.rcfilters.UriProcessor.prototype.doesQueryContainRecognizedParams = function ( uriQuery ) {
+               var anyValidInUrl,
+                       validParameterNames = Object.keys( this._getEmptyParameterState() )
+                               .filter( function ( param ) {
+                                       // Remove 'highlight' parameter from this check;
+                                       // if it's the only parameter in the URL we still
+                                       // want to consider the URL 'empty' for defaults to load
+                                       return param !== 'highlight';
+                               } );
+
+               uriQuery = uriQuery || new mw.Uri().query;
+
+               anyValidInUrl = Object.keys( uriQuery ).some( function ( parameter ) {
+                       return validParameterNames.indexOf( parameter ) > -1;
+               } );
+
+               // URL version 2 is allowed to be empty or within nonrecognized params
+               return anyValidInUrl || this.getVersion( uriQuery ) === 2;
+       };
+
+       /**
+        * Remove all parameters that have the same value as the base state
+        * This method expects uri queries of the urlversion=2 format
+        *
+        * @private
+        * @param {Object} uriQuery Current uri query
+        * @return {Object} Minimized query
+        */
+       mw.rcfilters.UriProcessor.prototype.minimizeQuery = function ( uriQuery ) {
+               var baseParams = this._getEmptyParameterState(),
+                       uriResult = $.extend( true, {}, uriQuery );
+
+               $.each( uriResult, function ( paramName, paramValue ) {
+                       if (
+                               baseParams[ paramName ] !== undefined &&
+                               baseParams[ paramName ] === paramValue
+                       ) {
+                               // Remove parameter from query
+                               delete uriResult[ paramName ];
+                       }
+               } );
+
+               return uriResult;
+       };
+
+       /**
+        * Get the adjusted URI params based on the url version
+        * If the urlversion is not 2, the parameters are merged with
+        * the model's defaults.
+        *
+        * @private
+        * @param {Object} uriQuery Current URI query
+        * @return {Object} Normalized parameters
+        */
+       mw.rcfilters.UriProcessor.prototype._getNormalizedQueryParams = function ( uriQuery ) {
+               // Check whether we are dealing with urlversion=2
+               // If we are, we do not merge the initial request with
+               // defaults. Not having urlversion=2 means we need to
+               // reproduce the server-side request and merge the
+               // requested parameters (or starting state) with the
+               // wiki default.
+               // Any subsequent change of the URL through the RCFilters
+               // system will receive 'urlversion=2'
+               var base = this.getVersion( uriQuery ) === 2 ?
+                       {} :
+                       this.filtersModel.getDefaultParams();
+
+               return this.minimizeQuery(
+                       $.extend( true, {}, base, uriQuery, { urlversion: '2' } )
+               );
+       };
+
+       /**
+        * Get the representation of an empty parameter state
+        *
+        * @private
+        * @return {Object} Empty parameter state
+        */
+       mw.rcfilters.UriProcessor.prototype._getEmptyParameterState = function () {
+               return this.emptyParameterState;
+       };
+
+       /**
+        * Build an empty representation of the parameters, where all parameters
+        * are either set to '0' or '' depending on their type.
+        * This must run during initialization, before highlights are set.
+        *
+        * @private
+        */
+       mw.rcfilters.UriProcessor.prototype._buildEmptyParameterState = function () {
+               var emptyParams = this.filtersModel.getParametersFromFilters( {} ),
+                       emptyHighlights = this.filtersModel.getHighlightParameters();
+
+               this.emptyParameterState = $.extend(
+                       true,
+                       {},
+                       emptyParams,
+                       emptyHighlights,
+                       { highlight: '0' }
+               );
+       };
+}( mediaWiki, jQuery ) );
index dd8fae0..6e62436 100644 (file)
@@ -37,8 +37,9 @@
                        $( '.rcfilters-head' ).addClass( 'mw-rcfilters-ui-ready' );
 
                        window.addEventListener( 'popstate', function () {
-                               controller.updateStateBasedOnUrl();
-                               controller.updateChangesList();
+                               // Update the state of the model from the URL
+                               // and re-fetch results into the changes list
+                               controller.updateStateFromUrl();
                        } );
 
                        $( 'a.mw-helplink' ).attr(
index 53362c4..ee3cd5b 100644 (file)
@@ -94,6 +94,7 @@ return [
                        'tests/qunit/suites/resources/mediawiki.special/mediawiki.special.recentchanges.test.js',
                        'tests/qunit/suites/resources/mediawiki.rcfilters/dm.FiltersViewModel.test.js',
                        'tests/qunit/suites/resources/mediawiki.rcfilters/dm.FilterItem.test.js',
+                       'tests/qunit/suites/resources/mediawiki.rcfilters/UriProcessor.test.js',
                        'tests/qunit/suites/resources/mediawiki/mediawiki.language.test.js',
                        'tests/qunit/suites/resources/mediawiki/mediawiki.cldr.test.js',
                        'tests/qunit/suites/resources/mediawiki/mediawiki.cookie.test.js',
diff --git a/tests/qunit/suites/resources/mediawiki.rcfilters/UriProcessor.test.js b/tests/qunit/suites/resources/mediawiki.rcfilters/UriProcessor.test.js
new file mode 100644 (file)
index 0000000..38ade4d
--- /dev/null
@@ -0,0 +1,252 @@
+/* eslint-disable camelcase */
+/* eslint no-underscore-dangle: "off" */
+( function ( mw, $ ) {
+       var mockFilterStructure = [ {
+                       name: 'group1',
+                       title: 'Group 1',
+                       type: 'send_unselected_if_any',
+                       filters: [
+                               { name: 'filter1', default: true },
+                               { name: 'filter2' }
+                       ]
+               }, {
+                       name: 'group2',
+                       title: 'Group 2',
+                       type: 'send_unselected_if_any',
+                       filters: [
+                               { name: 'filter3' },
+                               { name: 'filter4', default: true }
+                       ]
+               }, {
+                       name: 'group3',
+                       title: 'Group 3',
+                       type: 'string_options',
+                       filters: [
+                               { name: 'filter5' },
+                               { name: 'filter6' }
+                       ]
+               } ],
+               minimalDefaultParams = {
+                       filter1: '1',
+                       filter4: '1'
+               };
+
+       QUnit.module( 'mediawiki.rcfilters - UriProcessor' );
+
+       QUnit.test( 'getVersion', function ( assert ) {
+               var uriProcessor = new mw.rcfilters.UriProcessor( new mw.rcfilters.dm.FiltersViewModel() );
+
+               assert.ok(
+                       uriProcessor.getVersion( { param1: 'foo', urlversion: '2' } ),
+                       2,
+                       'Retrieving the version from the URI query'
+               );
+
+               assert.ok(
+                       uriProcessor.getVersion( { param1: 'foo' } ),
+                       1,
+                       'Getting version 1 if no version is specified'
+               );
+       } );
+
+       QUnit.test( 'updateModelBasedOnQuery & getUriParametersFromModel', function ( assert ) {
+               var uriProcessor,
+                       filtersModel = new mw.rcfilters.dm.FiltersViewModel(),
+                       baseParams = {
+                               filter1: '0',
+                               filter2: '0',
+                               filter3: '0',
+                               filter4: '0',
+                               group3: '',
+                               highlight: '0',
+                               group1__filter1_color: null,
+                               group1__filter2_color: null,
+                               group2__filter3_color: null,
+                               group2__filter4_color: null,
+                               group3__filter5_color: null,
+                               group3__filter6_color: null
+                       };
+
+               filtersModel.initializeFilters( mockFilterStructure );
+               uriProcessor = new mw.rcfilters.UriProcessor( filtersModel );
+
+               uriProcessor.updateModelBasedOnQuery( {} );
+               assert.deepEqual(
+                       uriProcessor.getUriParametersFromModel(),
+                       $.extend( true, {}, baseParams, minimalDefaultParams ),
+                       'Version 1: Empty url query sets model to defaults'
+               );
+
+               uriProcessor.updateModelBasedOnQuery( { urlversion: '2' } );
+               assert.deepEqual(
+                       uriProcessor.getUriParametersFromModel(),
+                       baseParams,
+                       'Version 2: Empty url query sets model to all-false'
+               );
+
+               uriProcessor.updateModelBasedOnQuery( { filter1: '1', urlversion: '2' } );
+               assert.deepEqual(
+                       uriProcessor.getUriParametersFromModel(),
+                       $.extend( true, {}, baseParams, { filter1: '1' } ),
+                       'Parameters in Uri query set parameter value in the model'
+               );
+
+               uriProcessor.updateModelBasedOnQuery( { highlight: '1', group1__filter1_color: 'c1', urlversion: '2' } );
+               assert.deepEqual(
+                       uriProcessor.getUriParametersFromModel(),
+                       $.extend( true, {}, baseParams, {
+                               highlight: '1',
+                               group1__filter1_color: 'c1'
+                       } ),
+                       'Highlight parameters in Uri query set highlight state in the model'
+               );
+       } );
+
+       QUnit.test( 'isNewState', function ( assert ) {
+               var uriProcessor,
+                       filtersModel = new mw.rcfilters.dm.FiltersViewModel(),
+                       cases = [
+                               {
+                                       states: {
+                                               curr: {},
+                                               new: {}
+                                       },
+                                       result: false,
+                                       message: 'Empty objects are not new state.'
+                               },
+                               {
+                                       states: {
+                                               curr: { filter1: '1' },
+                                               new: { filter1: '0' }
+                                       },
+                                       result: true,
+                                       message: 'Nulified parameter is a new state'
+                               },
+                               {
+                                       states: {
+                                               curr: { filter1: '1' },
+                                               new: { filter1: '1', filter2: '1' }
+                                       },
+                                       result: true,
+                                       message: 'Added parameters are a new state'
+                               },
+                               {
+                                       states: {
+                                               curr: { filter1: '1' },
+                                               new: { filter1: '1', filter2: '0' }
+                                       },
+                                       result: false,
+                                       message: 'Added null parameters are not a new state (normalizing equals old state)'
+                               },
+                               {
+                                       states: {
+                                               curr: { filter1: '1' },
+                                               new: { filter1: '1', foo: 'bar' }
+                                       },
+                                       result: true,
+                                       message: 'Added unrecognized parameters are a new state'
+                               },
+                               {
+                                       states: {
+                                               curr: { filter1: '1', foo: 'bar' },
+                                               new: { filter1: '1', foo: 'baz' }
+                                       },
+                                       result: true,
+                                       message: 'Changed unrecognized parameters are a new state'
+                               }
+                       ];
+
+               filtersModel.initializeFilters( mockFilterStructure );
+               uriProcessor = new mw.rcfilters.UriProcessor( filtersModel );
+
+               cases.forEach( function ( testCase ) {
+                       assert.equal(
+                               uriProcessor.isNewState( testCase.states.curr, testCase.states.new ),
+                               testCase.result,
+                               testCase.message
+                       );
+               } );
+       } );
+
+       QUnit.test( 'doesQueryContainRecognizedParams', function ( assert ) {
+               var uriProcessor,
+                       filtersModel = new mw.rcfilters.dm.FiltersViewModel(),
+                       cases = [
+                               {
+                                       query: {},
+                                       result: false,
+                                       message: 'Empty query is not valid for load.'
+                               },
+                               {
+                                       query: { highlight: '1' },
+                                       result: false,
+                                       message: 'Highlight state alone is not valid for load'
+                               },
+                               {
+                                       query: { urlversion: '2' },
+                                       result: true,
+                                       message: 'urlversion=2 state alone is valid for load as an empty state'
+                               },
+                               {
+                                       query: { filter1: '1', foo: 'bar' },
+                                       result: true,
+                                       message: 'Existence of recognized parameters makes the query valid for load'
+                               },
+                               {
+                                       query: { foo: 'bar', debug: true },
+                                       result: false,
+                                       message: 'Only unrecognized parameters makes the query invalid for load'
+                               }
+                       ];
+
+               filtersModel.initializeFilters( mockFilterStructure );
+               uriProcessor = new mw.rcfilters.UriProcessor( filtersModel );
+
+               cases.forEach( function ( testCase ) {
+                       assert.equal(
+                               uriProcessor.doesQueryContainRecognizedParams( testCase.query ),
+                               testCase.result,
+                               testCase.message
+                       );
+               } );
+       } );
+
+       QUnit.test( '_getNormalizedQueryParams', function ( assert ) {
+               var uriProcessor,
+                       filtersModel = new mw.rcfilters.dm.FiltersViewModel(),
+                       cases = [
+                               {
+                                       query: {},
+                                       result: $.extend( true, { urlversion: '2' }, minimalDefaultParams ),
+                                       message: 'Empty query returns defaults (urlversion 1).'
+                               },
+                               {
+                                       query: { urlversion: '2' },
+                                       result: { urlversion: '2' },
+                                       message: 'Empty query returns empty (urlversion 2)'
+                               },
+                               {
+                                       query: { filter1: '0' },
+                                       result: { urlversion: '2', filter4: '1' },
+                                       message: 'urlversion 1 returns query that overrides defaults'
+                               },
+                               {
+                                       query: { filter3: '1' },
+                                       result: { urlversion: '2', filter1: '1', filter4: '1', filter3: '1' },
+                                       message: 'urlversion 1 with an extra param value returns query that is joined with defaults'
+                               }
+                       ];
+
+               filtersModel.initializeFilters( mockFilterStructure );
+               uriProcessor = new mw.rcfilters.UriProcessor( filtersModel );
+
+               cases.forEach( function ( testCase ) {
+                       assert.deepEqual(
+                               uriProcessor._getNormalizedQueryParams( testCase.query ),
+                               testCase.result,
+                               testCase.message
+                       );
+               } );
+       } );
+
+}( mediaWiki, jQuery ) );