af3f6ac58d
Reduced the complexity of search loops And some cleanup. Change-Id: I772b02abd14d50ad1965e933d8dbb6d3eb4e0b1d
218 lines
6.3 KiB
JavaScript
218 lines
6.3 KiB
JavaScript
/**
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* jQuery language filter plugin.
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*
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* Copyright (C) 2012 Alolita Sharma, Amir Aharoni, Arun Ganesh, Brandon Harris,
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* Niklas Laxström, Pau Giner, Santhosh Thottingal, Siebrand Mazeland and other
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* contributors. See CREDITS for a list.
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*
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* UniversalLanguageSelector is dual licensed GPLv2 or later and MIT. You don't
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* have to do anything special to choose one license or the other and you don't
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* have to notify anyone which license you are using. You are free to use
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* UniversalLanguageSelector in commercial projects as long as the copyright
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* header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
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*
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* @file
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* @ingroup Extensions
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* @licence GNU General Public Licence 2.0 or later
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* @licence MIT License
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*/
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/**
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* Usage: $( 'inputbox' ).languagefilter();
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* The values for autocompletion is from the options.languages.
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* The data is in the format of languagecode:languagename.
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*/
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(function ( $ ) {
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"use strict";
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var LanguageFilter = function( element, options ) {
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this.$element = $( element );
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this.options = $.extend( {}, $.fn.regionselector.defaults, options );
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this.$element.addClass( 'languagefilter' );
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this.listen();
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};
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LanguageFilter.prototype = {
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listen: function() {
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this.$element.on( 'keyup', $.proxy( this.keyup, this ));
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if ( $.browser.webkit || $.browser.msie ) {
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this.$element.on( 'keydown', $.proxy( this.keyup, this ) );
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}
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},
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keyup: function( e ) {
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this.options.$target.empty();
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this.search();
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},
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search: function() {
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var query = $.trim( this.$element.val() ),
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languages = $.uls.data.languagesByScriptGroup( this.options.languages ),
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scriptGroup, langNum, langCode;
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for ( scriptGroup in languages ) {
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for ( langNum = 0; langNum < languages[scriptGroup].length; langNum++ ) {
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langCode = languages[scriptGroup][langNum];
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if ( query === "" || this.filter( langCode, query ) ) {
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this.render( langCode );
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}
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}
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}
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},
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render: function( langCode ) {
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var $target = this.options.$target;
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if ( !$target ) {
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return;
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}
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$target.append( langCode );
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},
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escapeRegex: function( value ) {
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return value.replace( /[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&" );
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},
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/**
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* A search match happens if any of the following passes:
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* a) Language name in current user interface language
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* 'starts with' or 'contains' search string.
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* b) Language autonym 'starts with' or 'contains' search string.
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* c) ISO 639 code match with search string.
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* d) ISO 15924 code for the script match the search string.
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*/
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filter: function( langCode, searchTerm ) {
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// FIXME script is ISO 15924 code. We might need actual name of script.
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var matcher = new RegExp( this.escapeRegex( searchTerm ), 'i' ),
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languageName = this.options.languages[langCode];
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return matcher.test( languageName ) ||
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matcher.test( $.uls.data.autonym( langCode ) ) ||
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matcher.test( langCode ) ||
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matcher.test( $.uls.data.script( langCode ) );
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}
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};
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$.fn.languagefilter = function( option ) {
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return this.each( function() {
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var $this = $( this ),
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data = $this.data( 'languagefilter' ),
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options = typeof option === 'object' && option;
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if ( !data ) {
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$this.data( 'languagefilter', ( data = new LanguageFilter( this, options ) ) );
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}
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if ( typeof option === 'string' ) {
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data[option]();
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}
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} );
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};
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$.fn.languagefilter.defaults = {
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$target: null, // Where to append the results
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languages: null, // Languages as code:name format. Default values come from data.languages.
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clickhandler: null
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};
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$.fn.languagefilter.Constructor = LanguageFilter;
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/* RegionSelector Plugin Definition */
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/**
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* Region selector is a language selector based on regions.
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* Usage: $( 'jqueryselector' ).regionselector( options );
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* The attached element should have data-regiongroup attribute
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* that defines the regiongroup for the selector.
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*/
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var RegionSelector = function( element, options ) {
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this.$element = $( element );
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this.options = $.extend( {}, $.fn.regionselector.defaults, options );
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this.$element.addClass( 'regionselector' );
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this.listen();
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this.regionGroup = this.$element.data( 'regiongroup' );
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};
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RegionSelector.prototype = {
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constructor: RegionSelector,
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test: function( langCode ) {
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var regions = $.uls.data.regionsInGroup( this.regionGroup ),
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langRegions = $.uls.data.regions( langCode ),
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region;
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for ( var i = 0; i < regions.length; i++ ) {
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region = regions[i];
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if ( $.inArray( region, langRegions ) >= 0 ) {
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this.render( langCode, region );
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return;
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}
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}
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},
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show: function() {
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var i, regions, language, languagesByScriptGroup, scriptGroup, languages;
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// Make the selected region (and it only) active
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$( '.regionselector' ).removeClass( 'active' );
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this.$element.addClass( 'active' );
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// Re-populate the list of languages
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this.options.$target.empty();
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regions = $.uls.data.regionsInGroup( this.regionGroup );
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languagesByScriptGroup = $.uls.data.languagesByScriptGroup( this.options.languages );
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for ( scriptGroup in languagesByScriptGroup ) {
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languages = languagesByScriptGroup[scriptGroup];
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for ( i = 0; i < languages.length; i++) {
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language = languages[i];
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this.test( language );
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}
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}
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if ( this.options.callback ) {
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this.options.callback.call();
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}
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},
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render: function( langCode, region ) {
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var $target = this.options.$target;
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if ( !$target ) {
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return;
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}
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$target.append( langCode, region );
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},
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listen: function() {
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this.$element.on( 'click', $.proxy( this.click, this ) );
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},
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click: function( e ) {
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e.stopPropagation();
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e.preventDefault();
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this.show();
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}
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};
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/* RegionSelector Plugin Definition */
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$.fn.regionselector = function( option ) {
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return this.each( function() {
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var $this = $( this ),
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data = $this.data( 'regionselector' ),
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options = typeof option === 'object' && option;
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if ( !data ) {
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$this.data( 'regionselector', ( data = new RegionSelector( this, options ) ) );
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}
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if ( typeof option === 'string' ) {
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data[option]();
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}
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} );
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};
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$.fn.regionselector.defaults = {
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$target: null, // Where to render the results. Must be a ul element
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callback: null, // Callback - will be called after results are displayed.
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languages: null
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};
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$.fn.regionselector.Constructor = RegionSelector;
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} )( jQuery );
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