/**
* @license RequireJS domReady 2.0.1 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
* Available via the MIT or new BSD license.
* see: http://github.com/requirejs/domReady for details
*/
/*jslint */
/*global require: false, define: false, requirejs: false,
window: false, clearInterval: false, document: false,
self: false, setInterval: false */


define(function () {
'use strict';

var isTop, testDiv, scrollIntervalId,
isBrowser = typeof window !== "undefined" && window.document,
isPageLoaded = !isBrowser,
doc = isBrowser ? document : null,
readyCalls = [];

function runCallbacks(callbacks) {
var i;
for (i = 0; i < callbacks.length; i += 1) {
callbacks[i](doc);
}
}

function callReady() {
var callbacks = readyCalls;

if (isPageLoaded) {
//Call the DOM ready callbacks
if (callbacks.length) {
readyCalls = [];
runCallbacks(callbacks);
}
}
}

/**
* Sets the page as loaded.
*/
function pageLoaded() {
if (!isPageLoaded) {
isPageLoaded = true;
if (scrollIntervalId) {
clearInterval(scrollIntervalId);
}

callReady();
}
}

if (isBrowser) {
if (document.addEventListener) {
//Standards. Hooray! Assumption here that if standards based,
//it knows about DOMContentLoaded.
document.addEventListener("DOMContentLoaded", pageLoaded, false);
window.addEventListener("load", pageLoaded, false);
} else if (window.attachEvent) {
window.attachEvent("onload", pageLoaded);

testDiv = document.createElement('div');
try {
isTop = window.frameElement === null;
} catch (e) {}

//DOMContentLoaded approximation that uses a doScroll, as found by
//Diego Perini: http://javascript.nwbox.com/IEContentLoaded/,
//but modified by other contributors, including jdalton
if (testDiv.doScroll && isTop && window.external) {
scrollIntervalId = setInterval(function () {
try {
testDiv.doScroll();
pageLoaded();
} catch (e) {}
}, 30);
}
}

//Check if document is no longer loading, and if so, just trigger page load
//listeners. Latest webkit browsers also use "interactive", and
//will fire the onDOMContentLoaded before "interactive" but not after
//entering "interactive" or "complete". More details:
//http://dev.w3.org/html5/spec/the-end.html#the-end
//http://stackoverflow.com/questions/3665561/document-readystate-of-interactive-vs-ondomcontentloaded
//Hmm, this is more complicated on further use, see "firing too early"
//bug: https://github.com/requirejs/domReady/issues/1
//so removing the || document.readyState === "interactive" test.
//There is still a window.onload binding that should get fired if
//DOMContentLoaded is missed.
if (document.readyState !== "loading") {
// Handle it asynchronously to allow scripts the opportunity to delay ready
setTimeout(pageLoaded);
}
}

/** START OF PUBLIC API **/

/**
* Registers a callback for DOM ready. If DOM is already ready, the
* callback is called immediately.
* @param {Function} callback
*/
function domReady(callback) {
if (isPageLoaded) {
callback(doc);
} else {
readyCalls.push(callback);
}
return domReady;
}

domReady.version = '2.0.1';

/**
* Loader Plugin API method
*/
domReady.load = function (name, req, onLoad, config) {
if (config.isBuild) {
onLoad(null);
} else {
domReady(onLoad);
}
};

/** END OF PUBLIC API **/

return domReady;
});