New file |
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/* |
Copyright (c) 2004-2006, The Dojo Foundation |
All Rights Reserved. |
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Licensed under the Academic Free License version 2.1 or above OR the |
modified BSD license. For more information on Dojo licensing, see: |
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http://dojotoolkit.org/community/licensing.shtml |
*/ |
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dojo.provide("dojo.lang.common"); |
dojo.lang.inherits = function (subclass, superclass) { |
if (!dojo.lang.isFunction(superclass)) { |
dojo.raise("dojo.inherits: superclass argument [" + superclass + "] must be a function (subclass: [" + subclass + "']"); |
} |
subclass.prototype = new superclass(); |
subclass.prototype.constructor = subclass; |
subclass.superclass = superclass.prototype; |
subclass["super"] = superclass.prototype; |
}; |
dojo.lang._mixin = function (obj, props) { |
var tobj = {}; |
for (var x in props) { |
if ((typeof tobj[x] == "undefined") || (tobj[x] != props[x])) { |
obj[x] = props[x]; |
} |
} |
if (dojo.render.html.ie && (typeof (props["toString"]) == "function") && (props["toString"] != obj["toString"]) && (props["toString"] != tobj["toString"])) { |
obj.toString = props.toString; |
} |
return obj; |
}; |
dojo.lang.mixin = function (obj, props) { |
for (var i = 1, l = arguments.length; i < l; i++) { |
dojo.lang._mixin(obj, arguments[i]); |
} |
return obj; |
}; |
dojo.lang.extend = function (constructor, props) { |
for (var i = 1, l = arguments.length; i < l; i++) { |
dojo.lang._mixin(constructor.prototype, arguments[i]); |
} |
return constructor; |
}; |
dojo.inherits = dojo.lang.inherits; |
dojo.mixin = dojo.lang.mixin; |
dojo.extend = dojo.lang.extend; |
dojo.lang.find = function (array, value, identity, findLast) { |
if (!dojo.lang.isArrayLike(array) && dojo.lang.isArrayLike(value)) { |
dojo.deprecated("dojo.lang.find(value, array)", "use dojo.lang.find(array, value) instead", "0.5"); |
var temp = array; |
array = value; |
value = temp; |
} |
var isString = dojo.lang.isString(array); |
if (isString) { |
array = array.split(""); |
} |
if (findLast) { |
var step = -1; |
var i = array.length - 1; |
var end = -1; |
} else { |
var step = 1; |
var i = 0; |
var end = array.length; |
} |
if (identity) { |
while (i != end) { |
if (array[i] === value) { |
return i; |
} |
i += step; |
} |
} else { |
while (i != end) { |
if (array[i] == value) { |
return i; |
} |
i += step; |
} |
} |
return -1; |
}; |
dojo.lang.indexOf = dojo.lang.find; |
dojo.lang.findLast = function (array, value, identity) { |
return dojo.lang.find(array, value, identity, true); |
}; |
dojo.lang.lastIndexOf = dojo.lang.findLast; |
dojo.lang.inArray = function (array, value) { |
return dojo.lang.find(array, value) > -1; |
}; |
dojo.lang.isObject = function (it) { |
if (typeof it == "undefined") { |
return false; |
} |
return (typeof it == "object" || it === null || dojo.lang.isArray(it) || dojo.lang.isFunction(it)); |
}; |
dojo.lang.isArray = function (it) { |
return (it && it instanceof Array || typeof it == "array"); |
}; |
dojo.lang.isArrayLike = function (it) { |
if ((!it) || (dojo.lang.isUndefined(it))) { |
return false; |
} |
if (dojo.lang.isString(it)) { |
return false; |
} |
if (dojo.lang.isFunction(it)) { |
return false; |
} |
if (dojo.lang.isArray(it)) { |
return true; |
} |
if ((it.tagName) && (it.tagName.toLowerCase() == "form")) { |
return false; |
} |
if (dojo.lang.isNumber(it.length) && isFinite(it.length)) { |
return true; |
} |
return false; |
}; |
dojo.lang.isFunction = function (it) { |
return (it instanceof Function || typeof it == "function"); |
}; |
(function () { |
if ((dojo.render.html.capable) && (dojo.render.html["safari"])) { |
dojo.lang.isFunction = function (it) { |
if ((typeof (it) == "function") && (it == "[object NodeList]")) { |
return false; |
} |
return (it instanceof Function || typeof it == "function"); |
}; |
} |
})(); |
dojo.lang.isString = function (it) { |
return (typeof it == "string" || it instanceof String); |
}; |
dojo.lang.isAlien = function (it) { |
if (!it) { |
return false; |
} |
return !dojo.lang.isFunction(it) && /\{\s*\[native code\]\s*\}/.test(String(it)); |
}; |
dojo.lang.isBoolean = function (it) { |
return (it instanceof Boolean || typeof it == "boolean"); |
}; |
dojo.lang.isNumber = function (it) { |
return (it instanceof Number || typeof it == "number"); |
}; |
dojo.lang.isUndefined = function (it) { |
return ((typeof (it) == "undefined") && (it == undefined)); |
}; |
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