MediaWiki:UIElements.js
/*
Read UI elements from the DOM. Used by MediaWiki:Gadget-ImageAnnotator.
Author: User:Lupo, March 2008
License: Quadruple licensed GFDL, GPL, LGPL and Creative Commons Attribution 3.0 (CC-BY-3.0)
Choose whichever license of these you like best :-)
- /
var UIElements = {
defaultLanguage : 'en',
getElementsByClassName : function (elem, tag, classes) {
// getElementsByClassName in wikibits.js has been changed in a contract-breaking way and
// newly won't work anymore with regexp strings or arrays of strings passed as classes.
// We need this functionality here, so we have our own copy of this function.
var arrElements = (tag == "*" && elem.all) ? elem.all : elem.getElementsByTagName (tag);
var arrReturnElements = new Array();
var arrRegExpClassNames = new Array();
if (typeof classes == "object") {
for (var i=0; i < classes.length; i++){
arrRegExpClassNames[arrRegExpClassNames.length] =
new RegExp("(^|\\s)" + classes[i].replace(/\-/g, "\\-") + "(\\s|$)");
}
} else {
arrRegExpClassNames[arrRegExpClassNames.length] =
new RegExp("(^|\\s)" + classes.replace(/\-/g, "\\-") + "(\\s|$)");
}
var this_elem;
var matches_all;
for (var j=0; j < arrElements.length; j++){
this_elem = arrElements[j];
matches_all = true;
for (var k=0; k < arrRegExpClassNames.length; k++){
if (!arrRegExpClassNames[k].test (this_elem.className)) {
matches_all = false;
break;
}
}
if (matches_all) {
arrReturnElements[arrReturnElements.length] = this_elem;
}
}
return (arrReturnElements)
},
load : function (container_name, items, tag, repository, default_language, doc)
{
doc = doc || document;
function add_item (item, lang)
{
var classes = item.className.split (' ');
var node = null;
if (item.ownerDocument != document && document.importNode)
node = document.importNode (item, true);
else
node = item.cloneNode (true);
UIElements.setEntry (classes[0], repository, node, lang, classes.slice (1));
}
if (!container_name || container_name.length == 0 || container_name == '*') return repository;
var base = UIElements.getElementsByClassName (doc, 'div', container_name);
if (!base || base.length == 0) return repository;
if (!items || items.length == 0)
items = ['wp\\S*'];
else if (items && typeof (items) == 'string')
items = [items];
if (!repository) repository = UIElements.emptyRepository (default_language);
for (var i = 0; i < base.length; i++) {
var b = base[i];
var lang = (b.getAttribute ('lang') || repository.defaultLanguage).replace(/-/g, '_');
for (var j = 0; j < items.length; j++) {
var nodes = UIElements.getElementsByClassName (b, tag || '*', items[j]);
if (nodes) {
for (var k = 0; k < nodes.length; k++) add_item (nodes[k], lang);
}
}
}
return repository;
},
getEntry : function (id, repository, lang, selector)
{
if (repository && repository[id]) {
if (!lang || lang.length == 0)
lang = repository.defaultLanguage || UIElements.defaultLanguage;
lang = lang.replace (/-/g, '_');
if (repository[id][lang]) {
if (selector == '*')
return repository[id][lang];
else if (!selector || selector.length == 0)
return repository[id][lang]._default;
else
return repository[id][lang][selector.replace (/-/g, '_')];
}
}
return null;
},
setEntry : function (id, repository, value, lang, selectors)
{
if (!repository) return null;
if (!lang) lang = repository.defaultLanguage;
lang = lang.replace (/-/g, '_');
id = id.replace(/-/g, '_');
if (!repository[id]) repository[id] = new Object ();
if (!repository[id][lang]) repository[id][lang] = new Object ();
if (!selectors || selectors.length == 0)
repository[id][lang]._default = value;
else {
for (var k = 0; k < selectors.length; k++) {
if (!selectors[k] || selectors[k].length == 0)
repository[id][lang]._default = value;
else
repository[id][lang][selectors[k].replace (/-/g, '_')] = value;
}
}
},
emptyRepository : function (default_language)
{
var repository = new Object ();
repository.defaultLanguage = default_language || UIElements.defaultLanguage;
return repository;
}
} // end UIElements