resources/src/mediawiki.widgets/mw.widgets.SearchInputWidget.js

   1 /*!
   2  * MediaWiki Widgets - SearchInputWidget class.
   3  *
   4  * @copyright 2011-2015 MediaWiki Widgets Team and others; see AUTHORS.txt
   5  * @license The MIT License (MIT); see LICENSE.txt
   6  */
   7 ( function ( $, mw ) {
   8
   9         /**
  10          * Creates a mw.widgets.SearchInputWidget object.
  11          *
  12          * @class
  13          * @extends mw.widgets.TitleInputWidget
  14          *
  15          * @constructor
  16          * @param {Object} [config] Configuration options
  17          * @cfg {boolean} [pushPending=false] Visually mark the input field as "pending", while
  18          *  requesting suggestions.
  19          * @cfg {boolean} [performSearchOnClick=true] If true, the script will start a search when-
  20          *  ever a user hits a suggestion. If false, the text of the suggestion is inserted into the
  21          *  text field only.
  22          *  @cfg {string} [dataLocation='header'] Where the search input field will be
  23          *  used (header or content).
  24          */
  25         mw.widgets.SearchInputWidget = function MwWidgetsSearchInputWidget( config ) {
  26                 // The parent constructors will detach this from the DOM, and won't
  27                 // be reattached until after this function is completed. As such
  28                 // grab a handle here. If no config.$input is passed tracking of
  29                 // form submissions won't work.
  30                 var $form = config.$input ? config.$input.closest( 'form' ) : $();
  31
  32                 config = $.extend( {
  33                         icon: 'search',
  34                         maxLength: undefined,
  35                         performSearchOnClick: true,
  36                         dataLocation: 'header'
  37                 }, config );
  38
  39                 // Parent constructor
  40                 mw.widgets.SearchInputWidget.parent.call( this, config );
  41
  42                 // Initialization
  43                 this.$element.addClass( 'mw-widget-searchInputWidget' );
  44                 this.lookupMenu.$element.addClass( 'mw-widget-searchWidget-menu' );
  45                 this.lastLookupItems = [];
  46                 if ( !config.pushPending ) {
  47                         this.pushPending = false;
  48                 }
  49                 if ( config.dataLocation ) {
  50                         this.dataLocation = config.dataLocation;
  51                 }
  52                 if ( config.performSearchOnClick ) {
  53                         this.performSearchOnClick = config.performSearchOnClick;
  54                 }
  55                 this.setLookupsDisabled( !this.suggestions );
  56
  57                 $form.on( 'submit', function () {
  58                         mw.track( 'mw.widgets.SearchInputWidget', {
  59                                 action: 'submit-form',
  60                                 numberOfResults: this.lastLookupItems.length,
  61                                 $form: $form,
  62                                 inputLocation: this.dataLocation || 'header',
  63                                 index: this.lastLookupItems.indexOf(
  64                                         this.$input.val()
  65                                 )
  66                         } );
  67                 }.bind( this ) );
  68
  69                 this.connect( this, {
  70                         change: 'onChange'
  71                 } );
  72
  73                 this.$element.addClass( 'oo-ui-textInputWidget-type-search' );
  74                 this.updateSearchIndicator();
  75                 this.connect( this, {
  76                         disable: 'onDisable'
  77                 } );
  78         };
  79
  80         /* Setup */
  81
  82         OO.inheritClass( mw.widgets.SearchInputWidget, mw.widgets.TitleInputWidget );
  83
  84         /* Methods */
  85
  86         /**
  87          * @inheritdoc
  88          * @protected
  89          */
  90         mw.widgets.SearchInputWidget.prototype.getInputElement = function () {
  91                 return $( '<input>' ).attr( 'type', 'search' );
  92         };
  93
  94         /**
  95          * @inheritdoc
  96          */
  97         mw.widgets.SearchInputWidget.prototype.onIndicatorMouseDown = function ( e ) {
  98                 if ( e.which === OO.ui.MouseButtons.LEFT ) {
  99                         // Clear the text field
 100                         this.setValue( '' );
 101                         this.$input[ 0 ].focus();
 102                         return false;
 103                 }
 104         };
 105
 106         /**
 107          * Update the 'clear' indicator displayed on type: 'search' text
 108          * fields, hiding it when the field is already empty or when it's not
 109          * editable.
 110          */
 111         mw.widgets.SearchInputWidget.prototype.updateSearchIndicator = function () {
 112                 if ( this.getValue() === '' || this.isDisabled() || this.isReadOnly() ) {
 113                         this.setIndicator( null );
 114                 } else {
 115                         this.setIndicator( 'clear' );
 116                 }
 117         };
 118
 119         /**
 120          * @see OO.ui.SearchInputWidget#onChange
 121          */
 122         mw.widgets.SearchInputWidget.prototype.onChange = function () {
 123                 this.updateSearchIndicator();
 124         };
 125
 126         /**
 127          * Handle disable events.
 128          *
 129          * @param {boolean} disabled Element is disabled
 130          * @private
 131          */
 132         mw.widgets.SearchInputWidget.prototype.onDisable = function () {
 133                 this.updateSearchIndicator();
 134         };
 135
 136         /**
 137          * @inheritdoc
 138          */
 139         mw.widgets.SearchInputWidget.prototype.setReadOnly = function ( state ) {
 140                 mw.widgets.SearchInputWidget.parent.prototype.setReadOnly.call( this, state );
 141                 this.updateSearchIndicator();
 142                 return this;
 143         };
 144
 145         /**
 146          * @inheritdoc mw.widgets.TitleWidget
 147          */
 148         mw.widgets.SearchInputWidget.prototype.getSuggestionsPromise = function () {
 149                 var api = this.getApi(),
 150                         promise,
 151                         self = this;
 152
 153                 // reuse the searchSuggest function from mw.searchSuggest
 154                 promise = mw.searchSuggest.request( api, this.getQueryValue(), $.noop, this.limit, this.getNamespace() );
 155
 156                 // tracking purposes
 157                 promise.done( function ( data, jqXHR ) {
 158                         self.requestType = jqXHR.getResponseHeader( 'X-OpenSearch-Type' );
 159                 } );
 160
 161                 return promise;
 162         };
 163
 164         /**
 165          * @inheritdoc mw.widgets.TitleInputWidget
 166          */
 167         mw.widgets.SearchInputWidget.prototype.getLookupCacheDataFromResponse = function ( response ) {
 168                 var resp;
 169
 170                 // mw.widgets.TitleInputWidget uses response.query, which doesn't exist for opensearch,
 171                 // so return the whole response (titles only, and links)
 172                 resp = {
 173                         data: response || {},
 174                         metadata: {
 175                                 type: this.requestType || 'unknown',
 176                                 query: this.getQueryValue()
 177                         }
 178                 };
 179                 this.requestType = undefined;
 180
 181                 return resp;
 182         };
 183
 184         /**
 185          * @inheritdoc mw.widgets.TitleWidget
 186          */
 187         mw.widgets.SearchInputWidget.prototype.getOptionsFromData = function ( data ) {
 188                 var items = [],
 189                         titles = data.data[ 1 ],
 190                         descriptions = data.data[ 2 ],
 191                         urls = data.data[ 3 ],
 192                         self = this;
 193
 194                 $.each( titles, function ( i, result ) {
 195                         items.push( new mw.widgets.TitleOptionWidget(
 196                                 self.getOptionWidgetData(
 197                                         result,
 198                                         // Create a result object that looks like the one from
 199                                         // the parent's API query.
 200                                         {
 201                                                 data: result,
 202                                                 url: urls[ i ],
 203                                                 imageUrl: null, // The JSON 'opensearch' API doesn't have images
 204                                                 description: descriptions[ i ],
 205                                                 missing: false,
 206                                                 redirect: false,
 207                                                 disambiguation: false
 208                                         }
 209                                 )
 210                         ) );
 211                 } );
 212
 213                 mw.track( 'mw.widgets.SearchInputWidget', {
 214                         action: 'impression-results',
 215                         numberOfResults: items.length,
 216                         resultSetType: data.metadata.type,
 217                         query: data.metadata.query,
 218                         inputLocation: this.dataLocation || 'header'
 219                 } );
 220
 221                 return items;
 222         };
 223
 224         /**
 225          * @inheritdoc
 226          */
 227         mw.widgets.SearchInputWidget.prototype.onLookupMenuItemChoose = function () {
 228                 mw.widgets.SearchInputWidget.parent.prototype.onLookupMenuItemChoose.apply( this, arguments );
 229
 230                 if ( this.performSearchOnClick ) {
 231                         this.$element.closest( 'form' ).submit();
 232                 }
 233         };
 234
 235         /**
 236          * @inheritdoc
 237          */
 238         mw.widgets.SearchInputWidget.prototype.getLookupMenuOptionsFromData = function () {
 239                 var items = mw.widgets.SearchInputWidget.parent.prototype.getLookupMenuOptionsFromData.apply(
 240                         this, arguments
 241                 );
 242
 243                 this.lastLookupItems = items.map( function ( item ) {
 244                         return item.data;
 245                 } );
 246
 247                 return items;
 248         };
 249
 250 }( jQuery, mediaWiki ) );