flymis/WebRoot/dojojs/src/undo/browser.js

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.undo.browser");
dojo.require("dojo.io.common");

try{
	if((!djConfig["preventBackButtonFix"])&&(!dojo.hostenv.post_load_)){
		document.write("<iframe style='border: 0px; width: 1px; height: 1px; position: absolute; bottom: 0px; right: 0px; visibility: visible;' name='djhistory' id='djhistory' src='"+(dojo.hostenv.getBaseScriptUri()+'iframe_history.html')+"'></iframe>");
	}
}catch(e){/* squelch */}

if(dojo.render.html.opera){
	dojo.debug("Opera is not supported with dojo.undo.browser, so back/forward detection will not work.");
}

/* NOTES:
 *  Safari 1.2: 
 *	back button "works" fine, however it's not possible to actually
 *	DETECT that you've moved backwards by inspecting window.location.
 *	Unless there is some other means of locating.
 *	FIXME: perhaps we can poll on history.length?
 *  Safari 2.0.3+ (and probably 1.3.2+):
 *	works fine, except when changeUrl is used. When changeUrl is used,
 *	Safari jumps all the way back to whatever page was shown before
 *	the page that uses dojo.undo.browser support.
 *  IE 5.5 SP2:
 *	back button behavior is macro. It does not move back to the
 *	previous hash value, but to the last full page load. This suggests
 *	that the iframe is the correct way to capture the back button in
 *	these cases.
 *	Don't test this page using local disk for MSIE. MSIE will not create 
 *	a history list for iframe_history.html if served from a file: URL. 
 *	The XML served back from the XHR tests will also not be properly 
 *	created if served from local disk. Serve the test pages from a web 
 *	server to test in that browser.
 *  IE 6.0:
 *	same behavior as IE 5.5 SP2
 * Firefox 1.0+:
 *	the back button will return us to the previous hash on the same
 *	page, thereby not requiring an iframe hack, although we do then
 *	need to run a timer to detect inter-page movement.
 */

dojo.undo.browser = {
	initialHref: window.location.href,
	initialHash: window.location.hash,

	moveForward: false,
	historyStack: [],
	forwardStack: [],
	historyIframe: null,
	bookmarkAnchor: null,