mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-01 17:36:35 +00:00
9a7913daa2
Objective: * Enable navigating search results using keyboard up and down keys * Bubble up query input enter events Changes: ve.ui.SearchWidget.js * Route query input events to emit * Add handler for keydown events * Support navigating through the list of results using vertical arrow keys Change-Id: Ia2e4b27075a8ab2e29a69294e9f7847e8f5a3f83
120 lines
2.7 KiB
JavaScript
120 lines
2.7 KiB
JavaScript
/*!
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* VisualEditor UserInterface SearchWidget class.
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*
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* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* Creates an ve.ui.SearchWidget object.
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*
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* @class
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* @extends ve.ui.Widget
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*
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* @constructor
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* @param {Object} [config] Config options
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* @cfg {string|jQuery} [placeholder] Placeholder text for query input
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* @cfg {string} [value] Initial query value
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*/
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ve.ui.SearchWidget = function VeUiSearchWidget( config ) {
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// Configuration intialization
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config = config || {};
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// Parent constructor
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ve.ui.Widget.call( this, config );
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// Properties
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this.query = new ve.ui.TextInputWidget( {
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'$$': this.$$,
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'icon': 'search',
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'placeholder': config.placeholder,
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'value': config.value
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} );
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this.results = new ve.ui.SelectWidget( { '$$': this.$$ } );
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this.$query = this.$$( '<div>' );
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this.$results = this.$$( '<div>' );
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// Events
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this.query.connect( this, { 'change': 'onQueryChange', 'enter': [ 'emit', 'enter' ] } );
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this.results.connect( this, { 'select': 'onResultsSelect' } );
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this.query.$.on( 'keydown', ve.bind( this.onQueryKeydown, this ) );
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// Initialization
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this.$query
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.addClass( 've-ui-searchWidget-query' )
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.append( this.query.$ );
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this.$results
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.addClass( 've-ui-searchWidget-results' )
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.append( this.results.$ );
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this.$
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.addClass( 've-ui-searchWidget' )
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.append( this.$results, this.$query );
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};
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/* Inheritance */
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ve.inheritClass( ve.ui.SearchWidget, ve.ui.Widget );
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/* Events */
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/**
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* @event select
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* @param {Object|null} item Item data or null if no item is selected
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*/
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/**
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* @event enter
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*/
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/* Methods */
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/**
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* Handle query key down events.
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*
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* @method
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* @param {jQuery.Event} e Key down event
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*/
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ve.ui.SearchWidget.prototype.onQueryKeydown = function ( e ) {
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var selectedItem,
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dir = e.which === ve.Keys.DOWN ? 1 : ( e.which === ve.Keys.UP ? -1 : 0 );
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if ( dir ) {
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selectedItem = this.results.getSelectedItem();
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this.results.selectItem( this.results.getRelativeSelectableItem( selectedItem, dir ) );
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}
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};
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/**
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* Handle select widget select events.
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*
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* Clears existing results. Subclasses should repopulate items according to new query.
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*
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* @method
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* @param {string} value New value
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*/
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ve.ui.SearchWidget.prototype.onQueryChange = function () {
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// Reset
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this.results.clearItems();
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};
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/**
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* Handle select widget select events.
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*
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* @method
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* @param {ve.ui.OptionWidget} item Selected item
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* @emits select
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*/
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ve.ui.SearchWidget.prototype.onResultsSelect = function ( item ) {
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this.emit( 'select', item ? item.getData() : null );
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};
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/**
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* Get the query input.
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*
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* @method
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* @returns {ve.ui.TextInputWidget} Query input
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*/
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ve.ui.SearchWidget.prototype.getQuery = function () {
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return this.query;
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};
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