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TiddlyWiki5/core/modules/filters/tag.js
Jeremy Ruston a9a2ae2223 Add sorting by tiddler lists
The tag and tagging filters now sort their results by the list field of
the tag, if present
2013-08-08 17:39:34 +01:00

51 lines
1.0 KiB
JavaScript

/*\
title: $:/core/modules/filters/tag.js
type: application/javascript
module-type: filteroperator
Filter operator for checking for the presence of a tag
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.tag = function(source,operator,options) {
var results = [];
// Function to check an individual title
function checkTiddler(title) {
var tiddler = options.wiki.getTiddler(title);
if(tiddler) {
var match = tiddler.hasTag(operator.operand);
if(operator.prefix === "!") {
match = !match;
}
if(match) {
results.push(title);
}
}
}
// Iterate through the source tiddlers
if($tw.utils.isArray(source)) {
$tw.utils.each(source,function(title) {
checkTiddler(title);
});
} else {
$tw.utils.each(source,function(element,title) {
checkTiddler(title);
});
}
// Sort the results if we are matching a tag
if(operator.prefix !== "!") {
results = options.wiki.sortByList(results,operator.operand);
}
return results;
};
})();