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129 lines
3.9 KiB
129 lines
3.9 KiB
/**
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* @license RequireJS domReady 2.0.1 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
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* Available via the MIT or new BSD license.
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* see: http://github.com/requirejs/domReady for details
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*/
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/*jslint */
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/*global require: false, define: false, requirejs: false,
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window: false, clearInterval: false, document: false,
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self: false, setInterval: false */
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define(function () {
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'use strict';
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var isTop, testDiv, scrollIntervalId,
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isBrowser = typeof window !== "undefined" && window.document,
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isPageLoaded = !isBrowser,
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doc = isBrowser ? document : null,
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readyCalls = [];
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function runCallbacks(callbacks) {
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var i;
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for (i = 0; i < callbacks.length; i += 1) {
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callbacks[i](doc);
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}
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}
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function callReady() {
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var callbacks = readyCalls;
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if (isPageLoaded) {
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//Call the DOM ready callbacks
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if (callbacks.length) {
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readyCalls = [];
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runCallbacks(callbacks);
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}
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}
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}
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/**
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* Sets the page as loaded.
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*/
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function pageLoaded() {
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if (!isPageLoaded) {
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isPageLoaded = true;
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if (scrollIntervalId) {
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clearInterval(scrollIntervalId);
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}
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callReady();
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}
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}
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if (isBrowser) {
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if (document.addEventListener) {
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//Standards. Hooray! Assumption here that if standards based,
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//it knows about DOMContentLoaded.
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document.addEventListener("DOMContentLoaded", pageLoaded, false);
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window.addEventListener("load", pageLoaded, false);
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} else if (window.attachEvent) {
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window.attachEvent("onload", pageLoaded);
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testDiv = document.createElement('div');
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try {
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isTop = window.frameElement === null;
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} catch (e) {}
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//DOMContentLoaded approximation that uses a doScroll, as found by
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//Diego Perini: http://javascript.nwbox.com/IEContentLoaded/,
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//but modified by other contributors, including jdalton
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if (testDiv.doScroll && isTop && window.external) {
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scrollIntervalId = setInterval(function () {
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try {
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testDiv.doScroll();
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pageLoaded();
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} catch (e) {}
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}, 30);
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}
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}
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//Check if document already complete, and if so, just trigger page load
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//listeners. Latest webkit browsers also use "interactive", and
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//will fire the onDOMContentLoaded before "interactive" but not after
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//entering "interactive" or "complete". More details:
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//http://dev.w3.org/html5/spec/the-end.html#the-end
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//http://stackoverflow.com/questions/3665561/document-readystate-of-interactive-vs-ondomcontentloaded
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//Hmm, this is more complicated on further use, see "firing too early"
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//bug: https://github.com/requirejs/domReady/issues/1
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//so removing the || document.readyState === "interactive" test.
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//There is still a window.onload binding that should get fired if
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//DOMContentLoaded is missed.
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if (document.readyState === "complete") {
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pageLoaded();
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}
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}
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/** START OF PUBLIC API **/
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/**
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* Registers a callback for DOM ready. If DOM is already ready, the
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* callback is called immediately.
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* @param {Function} callback
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*/
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function domReady(callback) {
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if (isPageLoaded) {
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callback(doc);
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} else {
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readyCalls.push(callback);
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}
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return domReady;
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}
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domReady.version = '2.0.1';
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/**
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* Loader Plugin API method
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*/
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domReady.load = function (name, req, onLoad, config) {
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if (config.isBuild) {
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onLoad(null);
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} else {
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domReady(onLoad);
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}
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};
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/** END OF PUBLIC API **/
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return domReady;
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});
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