/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Skywriter.
 *
 * The Initial Developer of the Original Code is
 * Mozilla.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Kevin Dangoor (kdangoor@mozilla.com)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

define(function(require, exports, module) {

/**
 * Array detector.
 * Firefox 3.5 and Safari 4 have this already. Chrome 4 however ...
 * Note to Dojo - your isArray is still broken: instanceof doesn't work with
 * Arrays taken from a different frame/window.
 */
if (!Array.isArray) {
    Array.isArray = function(data) {
        return data && Object.prototype.toString.call(data) === "[object Array]";
    };
}

// from MDC
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf
if (!Array.prototype.indexOf)
{
	Array.prototype.indexOf = function(searchElement /*, fromIndex */)
	{
		if (this === void 0 || this === null)
	    	throw new TypeError();
		
		var t = Object(this);
		var len = t.length >>> 0;
		if (len === 0)
		    return -1;
		
		var n = 0;
		if (arguments.length > 0) {
		    n = Number(arguments[1]);
		    if (n !== n)
		        n = 0;
		    else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0))
		        n = (n > 0 || -1) * Math.floor(Math.abs(n));
		}
		
		if (n >= len)
		    return -1;
		
		var k = n >= 0
		    ? n
		    : Math.max(len - Math.abs(n), 0);
		
		for (; k < len; k++) {
			if (k in t && t[k] === searchElement)
			    return k;
		}
		return -1;
	};
}

/**
 * Retrieves the list of keys on an object.
 */
if (!Object.keys) {
    Object.keys = function(obj) {
        var k, ret = [];
        for (k in obj) {
            if (obj.hasOwnProperty(k)) {
                ret.push(k);
            }
        }
        return ret;
    };
}

if (!Function.prototype.bind) {
    // from MDC
    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/bind
    Function.prototype.bind = function () {       
        var slice = [].slice;
        var args = slice.call(arguments, 1);
        var self = this;
        var nop = function () {};

        // optimize common case
        if (arguments.length == 1) {
	        var bound = return function() {
	            return fcn.apply(this instanceof nop ? this : obj, arguments);
	        };
        }
        else {
	        var bound = function () {
	            return self.apply(
	                this instanceof nop ? this : ( obj || {} ), 
	                args.concat( slice.call(arguments) )
	            );
	        };
        }
	    
        nop.prototype = self.prototype;    
        bound.prototype = new nop();    
        
        // From Narwhal
        bound.name = this.name;
        bound.displayName = this.displayName;
        bound.length = this.length;
        bound.unbound = self;
        
        return bound;
    };
}

exports.globalsLoaded = true;

});