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/**
* JavaScript for SMW autocomplete functionality
*
* @see https://www.mediawiki.org/wiki/Extension:Semantic_MediaWiki
*
* @since 1.8
* @release 0.1
*
* @file
* @ingroup SMW
*
* @licence GNU GPL v2 or later
* @author mwjames
*/
/*global mediaWiki:true*/
( function( $, mw ) {
'use strict';
/**
* Default options
*
*/
var defaults = {
limit: 10,
separator: null,
search: 'property',
namespace: mw.config.get( 'wgNamespaceIds' ).property
};
/**
* Handle autocomplete function for various instances
*
* @var options
*
* @since: 1.8
*/
$.fn.smwAutocomplete = function( settings ){
// Merge defaults and options
var options = $.extend( {}, defaults, settings );
// Specify regular expression
var regex = new RegExp( options.separator , 'mi' );
// Helper functions
function split( val ) {
return val.split( regex );
}
function extractLast( term ) {
return split( term ).pop();
}
function escapeQuestion(term){
if ( term.substring(0, 1) === "?" ) {
return term.substring(1);
} else {
return term;
}
}
// MW 1.24 changed ui versions
var version = $.ui ? parseFloat( $.ui.version.substring( 2 ) ) : 1;
if ( version >= 9 ) {
// Extending jQuery functions for custom highligting
$.ui.autocomplete( 'instance' )._renderItem = function( ul, item ) {
var term_without_q = escapeQuestion(extractLast( this.term ));
var re = new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term_without_q.replace("/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi", "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi");
var loc = item.label.search(re),
t = '';
if (loc >= 0) {
t = item.label.substr(0, loc) + '<strong>' + item.label.substr(loc, term_without_q.length) + '</strong>' + item.label.substr(loc + term_without_q.length);
} else {
t = item.label;
}
return $( "<li>" ).append( "<a>" + t + "</a>" ).appendTo( ul );
};
} else{
// Extending jQuery functions for custom highligting
$.ui.autocomplete.prototype._renderItem = function( ul, item ) {
var term_without_q = escapeQuestion(extractLast( this.term ));
var re = new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term_without_q.replace("/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi", "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi");
var loc = item.label.search(re),
t = '';
if (loc >= 0) {
t = item.label.substr(0, loc) + '<strong>' + item.label.substr(loc, term_without_q.length) + '</strong>' + item.label.substr(loc + term_without_q.length);
} else {
t = item.label;
}
$( "<li></li>" )
.data( "item.autocomplete", item )
.append( " <a>" + t + "</a>" )
.appendTo( ul );
};
}
// Extending jquery functions for custom autocomplete matching
$.extend( $.ui.autocomplete, {
filter: function(array, term) {
var matcher = new RegExp( "\\\b" + $.ui.autocomplete.escapeRegex(term), "i" );
return $.grep( array, function(value) {
return matcher.test( value.label || value.value || value );
});
}
} );
// Autocomplete core
this.autocomplete( {
minLength: 2,
source: function(request, response) {
$.getJSON(
mw.config.get( 'wgScriptPath' ) + '/api.php',
{
'action': 'opensearch',
'format': 'json',
'limit': options.limit,
'namespace': options.namespace ,
'search': extractLast( request.term )
},
function( data ){
if ( data.error === undefined ) {
//remove the word 'Property:' from returned data
if ( options.search === 'property' ){
for( var i=0; i < data[1].length; i++ ) {
data[1][i]= data[1][i].substr( data[1][i].indexOf( ':' ) + 1 );
}
}
response( data[1] );
} else {
response ( false );
}
}
);
},
focus: function() {
// prevent value inserted on focus
return false;
},
select: function( event, ui ) {
var terms = this.value;
terms = split( terms );
// remove the current input
terms.pop();
// add the selected item
terms.push( ui.item.value );
// add placeholder to get the comma-and-space at the end
terms.push("");
this.value = terms.join( options.separator !== null ? options.separator : '' );
return false;
}
} );
};
} )( jQuery, mediaWiki );
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