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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
/**
Defines extensions to native Array object.
@see [Array class]{@link external:Array}
@module montage/core/shim/array
*/
/**
@external Array
*/
/**
@function external:Array#equals
@param {object} right The object to compare.
@returns {Boolean} true or false
*/
if (!Array.prototype.equals) {
Object.defineProperty(Array.prototype, "equals", {
value: function (right) {
var i = 0,
length = this.length,
lhs,
rhs;
if (this === right) {
return true;
}
if (!right || !Array.isArray(right)) {
return false;
}
if (length !== right.length) {
return false;
} else {
for (; i < length; ++i) {
if (i in this) {
lhs = this[i],
rhs = right[i];
if (lhs !== rhs && (lhs && rhs && !lhs.equals(rhs))) {
return false;
}
} else {
if (i in right) {
return false;
}
}
}
}
return true;
}
});
}
/**
Shim implementation of Array.isArray() for browsers that don't yet support it.
@function external:Array.isArray
@param {object} obj The object to determine if its an array.
@returns {Array} Object.prototype.toString.call(obj) === "[object Array]"
*/
if (!Array.isArray) {
Object.defineProperty(Array, "isArray", {
value: function(obj) {
return Object.prototype.toString.call(obj) === "[object Array]";
}
});
}
if (!Array.isCanvasPixelArray) {
Object.defineProperty(Array, "isCanvasPixelArray", {
value: function(obj) {
return Object.prototype.toString.call(obj) === "[object CanvasPixelArray]";
}
});
}
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