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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#module(core)
************************************************************************ */
qx.OO.defineClass("qx.lang.Core");
/*
---------------------------------------------------------------------------
ADDITIONS FOR NATIVE ERROR OBJECT
---------------------------------------------------------------------------
*/
if (!Error.prototype.toString)
{
Error.prototype.toString = function() {
return this.message;
}
}
/*
---------------------------------------------------------------------------
ADDITIONS FOR NATIVE FUNCTION OBJECT
---------------------------------------------------------------------------
*/
/**
* function apply for browsers that do not support it natively, e.g. IE 5.0
* <p>
* Based on code from youngpup.net licensed under
* Creative Commons Attribution 2.0
* </p>
*/
if (!Function.prototype.apply)
{
Function.prototype.apply = function(oScope, args)
{
var sarg = [];
var rtrn, call;
if (!oScope) {
oScope = window;
}
if (!args) {
args = [];
}
for (var i = 0; i < args.length; i++) {
sarg[i] = "args["+i+"]";
}
call = "oScope._applyTemp_(" + sarg.join(",") + ");";
oScope._applyTemp_ = this;
rtrn = eval(call);
delete oScope._applyTemp_;
return rtrn;
}
}
/*
---------------------------------------------------------------------------
ADDITIONS FOR NATIVE ARRAY OBJECT
---------------------------------------------------------------------------
*/
// Add all JavaScript 1.5 Features if they are missing
// Mozilla 1.8 has support for indexOf, lastIndexOf, forEach, filter, map, some, every
// Some of them from Erik Arvidsson <http://erik.eae.net/>
// More documentation could be found here:
// http://www.webreference.com/programming/javascript/ncz/column4/
// An alternative implementation can be found here:
// http://www.nczonline.net/archive/2005/7/231
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:lastIndexOf
if (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(obj, fromIndex)
{
if (fromIndex == null)
{
fromIndex = 0;
}
else if (fromIndex < 0)
{
fromIndex = Math.max(0, this.length + fromIndex);
}
for (var i=fromIndex; i<this.length; i++) {
if (this[i] === obj) {
return i;
}
}
return -1;
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:lastIndexOf
if (!Array.prototype.lastIndexOf)
{
Array.prototype.lastIndexOf = function(obj, fromIndex)
{
if (fromIndex == null)
{
fromIndex = this.length-1;
}
else if (fromIndex < 0)
{
fromIndex = Math.max(0, this.length + fromIndex);
}
for (var i=fromIndex; i>=0; i--) {
if (this[i] === obj) {
return i;
}
}
return -1;
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:forEach
if (!Array.prototype.forEach)
{
Array.prototype.forEach = function(f, obj)
{
// 'l' must be fixed during loop... see docs
for (var i=0, l=this.length; i<l; i++) {
f.call(obj, this[i], i, this);
}
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:filter
if (!Array.prototype.filter)
{
Array.prototype.filter = function(f, obj)
{
// must be fixed during loop... see docs
var l = this.length;
var res = [];
for (var i=0; i<l; i++)
{
if (f.call(obj, this[i], i, this)) {
res.push(this[i]);
}
}
return res;
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:map
if (!Array.prototype.map)
{
Array.prototype.map = function(f, obj)
{
var l = this.length; // must be fixed during loop... see docs
var res = [];
for (var i=0; i<l; i++) {
res.push(f.call(obj, this[i], i, this));
}
return res;
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:some
if (!Array.prototype.some)
{
Array.prototype.some = function(f, obj)
{
var l = this.length; // must be fixed during loop... see docs
for (var i=0; i<l; i++)
{
if (f.call(obj, this[i], i, this)) {
return true;
}
}
return false;
}
}
// http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:every
if (!Array.prototype.every)
{
Array.prototype.every = function (f, obj)
{
var l = this.length; // must be fixed during loop... see docs
for (var i=0; i<l; i++)
{
if (!f.call(obj, this[i], i, this)) {
return false;
}
}
return true;
}
}
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