// vim: ts=4 sts=4 sw=4 expandtab
// -- kriskowal Kris Kowal Copyright (C) 2009-2011 MIT License
// -- tlrobinson Tom Robinson Copyright (C) 2009-2010 MIT License (Narwhal Project)
// -- dantman Daniel Friesen Copyright (C) 2010 XXX TODO License or CLA
// -- fschaefer Florian Schäfer Copyright (C) 2010 MIT License
// -- Gozala Irakli Gozalishvili Copyright (C) 2010 MIT License
// -- kitcambridge Kit Cambridge Copyright (C) 2011 MIT License
// -- kossnocorp Sasha Koss XXX TODO License or CLA
// -- bryanforbes Bryan Forbes XXX TODO License or CLA
// -- killdream Quildreen Motta Copyright (C) 2011 MIT Licence
// -- michaelficarra Michael Ficarra Copyright (C) 2011 3-clause BSD License
// -- sharkbrainguy Gerard Paapu Copyright (C) 2011 MIT License
// -- bbqsrc Brendan Molloy XXX TODO License or CLA
// -- iwyg XXX TODO License or CLA
// -- DomenicDenicola Domenic Denicola XXX TODO License or CLA
// -- xavierm02 Montillet Xavier XXX TODO License or CLA
// -- Raynos Raynos XXX TODO License or CLA
// -- samsonjs Sami Samhuri XXX TODO License or CLA
// -- rwldrn Rick Waldron Copyright (C) 2011 MIT License
// -- lexer Alexey Zakharov XXX TODO License or CLA
/*!
Copyright (c) 2009, 280 North Inc. http://280north.com/
MIT License. http://github.com/280north/narwhal/blob/master/README.md
*/
(function (undefined) {
/**
* Brings an environment as close to ECMAScript 5 compliance
* as is possible with the facilities of erstwhile engines.
*
* ES5 Draft
* http://www.ecma-international.org/publications/files/drafts/tc39-2009-050.pdf
*
* NOTE: this is a draft, and as such, the URL is subject to change. If the
* link is broken, check in the parent directory for the latest TC39 PDF.
* http://www.ecma-international.org/publications/files/drafts/
*
* Previous ES5 Draft
* http://www.ecma-international.org/publications/files/drafts/tc39-2009-025.pdf
* This is a broken link to the previous draft of ES5 on which most of the
* numbered specification references and quotes herein were taken. Updating
* these references and quotes to reflect the new document would be a welcome
* volunteer project.
*
* @module
*/
/*whatsupdoc*/
// Shortcut to an often accessed properties, in order to avoid multiple
// dereference that costs universally.
// _Please note: Shortcuts are defined after `Function.prototype.bind` as we
// us it in defining shortcuts.
var call = Function.prototype.call;
var prototypeOfArray = Array.prototype;
var prototypeOfObject = Object.prototype;
var slice = prototypeOfArray.slice;
var owns;
var toString;
// ES-5 15.3.4.5
// http://www.ecma-international.org/publications/files/drafts/tc39-2009-025.pdf
if (!Function.prototype.bind) {
Function.prototype.bind = function (that) { // .length is 1
// 1. Let Target be the this value.
var target = this;
// 2. If IsCallable(Target) is false, throw a TypeError exception.
if (typeof target != "function")
throw new TypeError(); // TODO message
// 3. Let A be a new (possibly empty) internal list of all of the
// argument values provided after thisArg (arg1, arg2 etc), in order.
// XXX slicedArgs will stand in for "A" if used
var args = slice.call(arguments, 1); // for normal call
// 4. Let F be a new native ECMAScript object.
// 9. Set the [[Prototype]] internal property of F to the standard
// built-in Function prototype object as specified in 15.3.3.1.
// 10. Set the [[Call]] internal property of F as described in
// 15.3.4.5.1.
// 11. Set the [[Construct]] internal property of F as described in
// 15.3.4.5.2.
// 12. Set the [[HasInstance]] internal property of F as described in
// 15.3.4.5.3.
// 13. The [[Scope]] internal property of F is unused and need not
// exist.
var bound = function () {
if (this instanceof bound) {
// 15.3.4.5.2 [[Construct]]
// When the [[Construct]] internal method of a function object,
// F that was created using the bind function is called with a
// list of arguments ExtraArgs the following steps are taken:
// 1. Let target be the value of F's [[TargetFunction]]
// internal property.
// 2. If target has no [[Construct]] internal method, a
// TypeError exception is thrown.
// 3. Let boundArgs be the value of F's [[BoundArgs]] internal
// property.
// 4. Let args be a new list containing the same values as the
// list boundArgs in the same order followed by the same
// values as the list ExtraArgs in the same order.
var F = function(){};
F.prototype = target.prototype;
var self = new F;
var result = target.apply(
self,
args.concat(slice.call(arguments))
);
if (result !== null && Object(result) === result)
return result;
return self;
} else {
// 15.3.4.5.1 [[Call]]
// When the [[Call]] internal method of a function object, F,
// which was created using the bind function is called with a
// this value and a list of arguments ExtraArgs the following
// steps are taken:
// 1. Let boundArgs be the value of F's [[BoundArgs]] internal
// property.
// 2. Let boundThis be the value of F's [[BoundThis]] internal
// property.
// 3. Let target be the value of F's [[TargetFunction]] internal
// property.
// 4. Let args be a new list containing the same values as the list
// boundArgs in the same order followed by the same values as
// the list ExtraArgs in the same order. 5. Return the
// result of calling the [[Call]] internal method of target
// providing boundThis as the this value and providing args
// as the arguments.
// equiv: target.call(this, ...boundArgs, ...args)
return target.apply(
that,
args.concat(slice.call(arguments))
);
}
};
// XXX bound.length is never writable, so don't even try
//
// 16. The length own property of F is given attributes as specified in
// 15.3.5.1.
// TODO
// 17. Set the [[Extensible]] internal property of F to true.
// TODO
// 18. Call the [[DefineOwnProperty]] internal method of F with
// arguments "caller", PropertyDescriptor {[[Value]]: null,
// [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]:
// false}, and false.
// TODO
// 19. Call the [[DefineOwnProperty]] internal method of F with
// arguments "arguments", PropertyDescriptor {[[Value]]: null,
// [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]:
// false}, and false.
// TODO
// NOTE Function objects created using Function.prototype.bind do not
// have a prototype property.
// XXX can't delete it in pure-js.
return bound;
};
}
toString = call.bind(prototypeOfObject.toString);
owns = call.bind(prototypeOfObject.hasOwnProperty);
//
// Array
// =====
//
// ES5 15.4.3.2
if (!Array.isArray) {
Array.isArray = function (obj) {
return toString(obj) == "[object Array]";
};
}
// The IsCallable() check in the Array functions
// has been replaced with a strict check on the
// internal class of the object to trap cases where
// the provided function was actually a regular
// expression literal, which in V8 and
// JavaScriptCore is a typeof "function". Only in
// V8 are regular expression literals permitted as
// reduce parameters, so it is desirable in the
// general case for the shim to match the more
// strict and common behavior of rejecting regular
// expressions.
// ES5 15.4.4.18
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/foreach
if (!Array.prototype.forEach) {
Array.prototype.forEach = function (fun /*, thisp*/) {
var self = toObject(this),
thisp = arguments[1],
i = 0,
length = self.length >>> 0;
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
while (i < length) {
if (i in self) {
// Invoke the callback function with call, passing arguments:
// context, property value, property key, thisArg object context
fun.call(thisp, self[i], i, self);
}
i++;
}
};
}
// ES5 15.4.4.19
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map
if (!Array.prototype.map) {
Array.prototype.map = function (fun /*, thisp*/) {
var self = toObject(this),
length = self.length >>> 0,
result = Array(length),
thisp = arguments[1];
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
for (var i = 0; i < length; i++) {
if (i in self)
result[i] = fun.call(thisp, self[i], i, self);
}
return result;
};
}
// ES5 15.4.4.20
if (!Array.prototype.filter) {
Array.prototype.filter = function (fun /*, thisp */) {
var self = toObject(this),
length = self.length >>> 0,
result = [],
thisp = arguments[1];
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
for (var i = 0; i < length; i++) {
if (i in self && fun.call(thisp, self[i], i, self))
result.push(self[i]);
}
return result;
};
}
// ES5 15.4.4.16
if (!Array.prototype.every) {
Array.prototype.every = function (fun /*, thisp */) {
var self = toObject(this),
length = self.length >>> 0,
thisp = arguments[1];
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
for (var i = 0; i < length; i++) {
if (i in self && !fun.call(thisp, self[i], i, self))
return false;
}
return true;
};
}
// ES5 15.4.4.17
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some
if (!Array.prototype.some) {
Array.prototype.some = function (fun /*, thisp */) {
var self = toObject(this),
length = self.length >>> 0,
thisp = arguments[1];
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
for (var i = 0; i < length; i++) {
if (i in self && fun.call(thisp, self[i], i, self))
return true;
}
return false;
};
}
// ES5 15.4.4.21
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce
if (!Array.prototype.reduce) {
Array.prototype.reduce = function (fun /*, initial*/) {
var self = toObject(this),
length = self.length >>> 0;
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
// no value to return if no initial value and an empty array
if (!length && arguments.length == 1)
throw new TypeError(); // TODO message
var i = 0;
var result;
if (arguments.length >= 2) {
result = arguments[1];
} else {
do {
if (i in self) {
result = self[i++];
break;
}
// if array contains no values, no initial value to return
if (++i >= length)
throw new TypeError(); // TODO message
} while (true);
}
for (; i < length; i++) {
if (i in self)
result = fun.call(void 0, result, self[i], i, self);
}
return result;
};
}
// ES5 15.4.4.22
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight
if (!Array.prototype.reduceRight) {
Array.prototype.reduceRight = function (fun /*, initial*/) {
var self = toObject(this),
length = self.length >>> 0;
// If no callback function or if callback is not a callable function
if (toString(fun) != "[object Function]") {
throw new TypeError(); // TODO message
}
// no value to return if no initial value, empty array
if (!length && arguments.length == 1)
throw new TypeError(); // TODO message
var result, i = length - 1;
if (arguments.length >= 2) {
result = arguments[1];
} else {
do {
if (i in self) {
result = self[i--];
break;
}
// if array contains no values, no initial value to return
if (--i < 0)
throw new TypeError(); // TODO message
} while (true);
}
do {
if (i in this)
result = fun.call(void 0, result, self[i], i, self);
} while (i--);
return result;
};
}
// ES5 15.4.4.14
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (sought /*, fromIndex */ ) {
var self = toObject(this),
length = self.length >>> 0;
if (!length)
return -1;
var i = 0;
if (arguments.length > 1)
i = toInteger(arguments[1]);
// handle negative indices
i = i >= 0 ? i : length - Math.abs(i);
for (; i < length; i++) {
if (i in self && self[i] === sought) {
return i;
}
}
return -1;
};
}
// ES5 15.4.4.15
if (!Array.prototype.lastIndexOf) {
Array.prototype.lastIndexOf = function (sought /*, fromIndex */) {
var self = toObject(this),
length = self.length >>> 0;
if (!length)
return -1;
var i = length - 1;
if (arguments.length > 1)
i = toInteger(arguments[1]);
// handle negative indices
i = i >= 0 ? i : length - Math.abs(i);
for (; i >= 0; i--) {
if (i in self && sought === self[i])
return i;
}
return -1;
};
}
//
// Array
// =====
//
// ES5 15.4.4.12
// http://es5.github.com/#x15.4.4.12
// Default value for second param
// [bugfix, ielt9, old browsers]
// IE < 9 bug: [1,2].splice(0).join("") == "" but should be "12"
if([1,2].splice(0).length != 2) {
var _origArraySplice = Array.prototype.splice;
Array.prototype.splice = function(start, deleteCount) {
if(!arguments.length)return [];
return _origArraySplice.apply(this, [
start === void 0 ? 0 : start,
deleteCount === void 0 ? (this.length - start) : deleteCount
].concat(slice.call(arguments, 2)))
};
}
//
// Object
// ======
//
// ES5 15.2.3.14
// http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
if (!Object.keys) {
var hasDontEnumBug = true,
dontEnums = [
"toString",
"toLocaleString",
"valueOf",
"hasOwnProperty",
"isPrototypeOf",
"propertyIsEnumerable",
"constructor"
],
dontEnumsLength = dontEnums.length;
for (var key in {"toString": null})
hasDontEnumBug = false;
Object.keys = function keys(object) {
if ((typeof object != "object" && typeof object != "function") || object === null)
throw new TypeError("Object.keys called on a non-object");
var keys = [];
for (var name in object) {
if (owns(object, name)) {
keys.push(name);
}
}
if (hasDontEnumBug) {
for (var i = 0, ii = dontEnumsLength; i < ii; i++) {
var dontEnum = dontEnums[i];
if (owns(object, dontEnum)) {
keys.push(dontEnum);
}
}
}
return keys;
};
}
//
// Date
// ====
//
// ES5 15.9.5.43
// Format a Date object as a string according to a simplified subset of the ISO 8601
// standard as defined in 15.9.1.15.
if (!Date.prototype.toISOString) {
Date.prototype.toISOString = function toISOString() {
var result, length, value;
if (!isFinite(this))
throw new RangeError;
// the date time string format is specified in 15.9.1.15.
result = [this.getUTCFullYear(), this.getUTCMonth() + 1, this.getUTCDate(),
this.getUTCHours(), this.getUTCMinutes(), this.getUTCSeconds()];
length = result.length;
while (length--) {
value = result[length];
// pad months, days, hours, minutes, and seconds to have two digits.
if (value < 10)
result[length] = "0" + value;
}
// pad milliseconds to have three digits.
return result.slice(0, 3).join("-") + "T" + result.slice(3).join(":") + "." +
("000" + this.getUTCMilliseconds()).slice(-3) + "Z";
}
}
// ES5 15.9.4.4
if (!Date.now) {
Date.now = function now() {
return new Date().getTime();
};
}
// ES5 15.9.5.44
if (!Date.prototype.toJSON) {
Date.prototype.toJSON = function toJSON(key) {
// This function provides a String representation of a Date object for
// use by JSON.stringify (15.12.3). When the toJSON method is called
// with argument key, the following steps are taken:
// 1. Let O be the result of calling ToObject, giving it the this
// value as its argument.
// 2. Let tv be ToPrimitive(O, hint Number).
// 3. If tv is a Number and is not finite, return null.
// XXX
// 4. Let toISO be the result of calling the [[Get]] internal method of
// O with argument "toISOString".
// 5. If IsCallable(toISO) is false, throw a TypeError exception.
if (typeof this.toISOString != "function")
throw new TypeError(); // TODO message
// 6. Return the result of calling the [[Call]] internal method of
// toISO with O as the this value and an empty argument list.
return this.toISOString();
// NOTE 1 The argument is ignored.
// NOTE 2 The toJSON function is intentionally generic; it does not
// require that its this value be a Date object. Therefore, it can be
// transferred to other kinds of objects for use as a method. However,
// it does require that any such object have a toISOString method. An
// object is free to use the argument key to filter its
// stringification.
};
}
//
// String
// ======
//
// ES5 15.5.4.20
var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" +
"\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" +
"\u2029\uFEFF";
if (!String.prototype.trim || ws.trim()) {
// http://blog.stevenlevithan.com/archives/faster-trim-javascript
// http://perfectionkills.com/whitespace-deviations/
ws = "[" + ws + "]";
var trimBeginRegexp = new RegExp("^" + ws + ws + "*"),
trimEndRegexp = new RegExp(ws + ws + "*$");
String.prototype.trim = function trim() {
return String(this).replace(trimBeginRegexp, "").replace(trimEndRegexp, "");
};
}
// ES5 15.5.4.14
// http://es5.github.com/#x15.5.4.14
// [bugfix, chrome]
// If separator is undefined, then the result array contains just one String, which is the this value (converted to a String). If limit is not undefined, then the output array is truncated so that it contains no more than limit elements.
// "0".split(undefined, 0) -> []
if("0".split(void 0, 0).length) {
var oldSplit = String.prototype.split;
String.prototype.split = function(separator, limit) {
if(separator === void 0 && limit === 0)return [];
return oldSplit.apply(this, arguments);
}
}
// ECMA-262, 3rd B.2.3
// Note an ECMAScript standart, although ECMAScript 3rd Edition has a non-normative section suggesting uniform semantics
// and it should be normalized across all browsers
// [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE
if("".substr && "0b".substr(-1) !== "b") {
var oldSubstr = String.prototype.substr;
/**
* Get the substring of a string
* @param {integer} start where to start the substring
* @param {integer} length how many characters to return
* @return {string}
*/
String.prototype.substr = function(start, length) {
return oldSubstr.call(this, start < 0 ? (start = this.length + start) < 0 ? 0 : start : start, length);
}
}
//
// Util
// ======
//
// http://jsperf.com/to-integer
var toInteger = function (n) {
n = +n;
if (n !== n) // isNaN
n = -1;
else if (n !== 0 && n !== (1/0) && n !== -(1/0))
n = (n > 0 || -1) * Math.floor(Math.abs(n));
return n;
};
var prepareString = "a"[0] != "a",
// ES5 9.9
toObject = function (o) {
if (o == null) { // this matches both null and undefined
throw new TypeError(); // TODO message
}
// If the implementation doesn't support by-index access of
// string characters (ex. IE < 7), split the string
if (prepareString && typeof o == "string" && o) {
return o.split("");
}
return Object(o);
};
})();
(function($, shims){
var defineProperty = 'defineProperty';
var advancedObjectProperties = !!(Object.create && Object.defineProperties && Object.getOwnPropertyDescriptor);
//safari5 has defineProperty-interface, but it can't be used on dom-object
//only do this test in non-IE browsers, because this hurts dhtml-behavior in some IE8 versions
if (advancedObjectProperties && !$.browser.msie && Object[defineProperty] && Object.prototype.__defineGetter__) {
(function(){
try {
var foo = document.createElement('foo');
Object[defineProperty](foo, 'bar', {
get: function(){
return true;
}
});
advancedObjectProperties = !!foo.bar;
}
catch (e) {
advancedObjectProperties = false;
}
foo = null;
})();
}
Modernizr.objectAccessor = !!((advancedObjectProperties || (Object.prototype.__defineGetter__ && Object.prototype.__lookupSetter__)) && (!$.browser.opera || shims.browserVersion >= 11));
Modernizr.advancedObjectProperties = advancedObjectProperties;
if((!advancedObjectProperties || !Object.create || !Object.defineProperties || !Object.getOwnPropertyDescriptor || !Object.defineProperty)){
var call = Function.prototype.call;
var prototypeOfObject = Object.prototype;
var owns = call.bind(prototypeOfObject.hasOwnProperty);
shims.objectCreate = function(proto, props, opts, no__proto__){
var o;
var f = function(){};
f.prototype = proto;
o = new f();
if(!no__proto__ && !('__proto__' in o) && !Modernizr.objectAccessor){
o.__proto__ = proto;
}
if(props){
shims.defineProperties(o, props);
}
if(opts){
o.options = jQuery.extend(true, {}, o.options || {}, opts);
opts = o.options;
}
if(o._create && jQuery.isFunction(o._create)){
o._create(opts);
}
return o;
};
shims.defineProperties = function(object, props){
for (var name in props) {
if (owns(props, name)) {
shims.defineProperty(object, name, props[name]);
}
}
return object;
};
var descProps = ['configurable', 'enumerable', 'writable'];
shims.defineProperty = function(proto, property, descriptor){
if(typeof descriptor != "object" || descriptor === null){return proto;}
if(owns(descriptor, "value")){
proto[property] = descriptor.value;
return proto;
}
if(proto.__defineGetter__){
if (typeof descriptor.get == "function") {
proto.__defineGetter__(property, descriptor.get);
}
if (typeof descriptor.set == "function"){
proto.__defineSetter__(property, descriptor.set);
}
}
return proto;
};
shims.getPrototypeOf = function (object) {
return Object.getPrototypeOf && Object.getPrototypeOf(object) || object.__proto__ || object.constructor && object.constructor.prototype;
};
//based on http://www.refactory.org/s/object_getownpropertydescriptor/view/latest
shims.getOwnPropertyDescriptor = function(obj, prop){
if (typeof obj !== "object" && typeof obj !== "function" || obj === null){
throw new TypeError("Object.getOwnPropertyDescriptor called on a non-object");
}
var descriptor;
if(Object.defineProperty && Object.getOwnPropertyDescriptor){
try{
descriptor = Object.getOwnPropertyDescriptor(obj, prop);
return descriptor;
} catch(e){}
}
descriptor = {
configurable: true,
enumerable: true,
writable: true,
value: undefined
};
var getter = obj.__lookupGetter__ && obj.__lookupGetter__(prop),
setter = obj.__lookupSetter__ && obj.__lookupSetter__(prop)
;
if (!getter && !setter) { // not an accessor so return prop
if(!owns(obj, prop)){
return;
}
descriptor.value = obj[prop];
return descriptor;
}
// there is an accessor, remove descriptor.writable; populate descriptor.get and descriptor.set
delete descriptor.writable;
delete descriptor.value;
descriptor.get = descriptor.set = undefined;
if(getter){
descriptor.get = getter;
}
if(setter){
descriptor.set = setter;
}
return descriptor;
};
}
})(jQuery, jQuery.webshims);