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MINOR Moved jsparty/loader.js to sapphire/javascript/loader.js

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.4@93571 467b73ca-7a2a-4603-9d3b-597d59a354a9
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Ingo Schommer 2009-11-26 03:28:36 +00:00 committed by Sam Minnee
parent 47356d933a
commit 0b04bfab9c
1 changed files with 86 additions and 0 deletions
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javascript/loader.js Normal file
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/*
* common/js/loader.js
* Common file, to be included before any of the other common/js scripts
*/
/*
* Gracefully deal with a whole lot of modules wanting to set the onload() event handler
*/
if(typeof _LOADERS == 'undefined') _LOADERS = Array();
function callAllLoaders() {
var i, loaderFunc;
for(i=0;i<_LOADERS.length;i++) {
loaderFunc = _LOADERS[i];
if(loaderFunc != callAllLoaders) loaderFunc();
}
}
function appendLoader(loaderFunc) {
if(window.onload && window.onload != callAllLoaders)
_LOADERS[_LOADERS.length] = window.onload;
window.onload = callAllLoaders;
_LOADERS[_LOADERS.length] = loaderFunc;
}
/*
* Call the given function on any element of the given tag and class
*/
function setUpHandlers(tagName,className, handlerFunction) {
var allElements = document.getElementsByTagName(tagName);
for(var i = 0;i<allElements.length;i++) {
if(allElements[i].className) {
tester = ' ' + allElements[i].className + ' ';
if(tester.indexOf(' ' + className + ' ') != -1) {
handlerFunction(allElements[i]);
}
}
}
}
/*
* Return an array of all elements
*/
function getAllElements() {
var allElements = document.getElementsByTagName('*');
if(allElements.length == 0) return document.all;
else return allElements;
}
/*
* Functions to add and remove class names
* Mac IE hates unnecessary spaces
*/
function addClass(el, cls, forceBefore) {
if(!el.className) el.className = "";
if(forceBefore != null && el.className.match(new RegExp('(^| )' + forceBefore))) {
el.className = el.className.replace(new RegExp("( |^)" + forceBefore), '$1' + cls + ' ' + forceBefore);
} else if(!el.className.match(new RegExp('(^| )' + cls + '($| )'))) {
el.className += ' ' + cls;
el.className = el.className.replace(/(^ +)|( +$)/g, '');
}
}
function removeClass(el, cls) {
var old = el.className;
var newCls = ' ' + el.className + ' ';
newCls = newCls.replace(new RegExp(' (' + cls + ' +)+','g'), ' ');
el.className = newCls.replace(/(^ +)|( +$)/g, '');
}
function removeClasses(el, cls) {
removeClass(el,cls);
var items = el.getElementsByTagName('*');
var i;
for(i=0;i<items.length;i++) if(items[i].className) removeClass(items[i],cls);
}
/*
* Add an event handler, saving the existing one
*/
function addEventHandler(obj, evt, handler) {
if(obj[evt]) obj['old_' + evt] = obj[evt];
obj[evt] = handler;
}