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<!DOCTYPE html>
<html>
<!--
Copyright 2010 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<title>History Demo 3</title>
<link rel="stylesheet" href="css/demo.css">
<style>
body {
font-family: sans-serif;
font-size: 83%
}
table {
border: 1px solid #666;
background: lightblue;
margin: 1em auto;
}
td {
text-align: center;
padding: 0 0.5em 0.5em 0.5em;
}
.hidden-frame {
height: 0;
left: 0;
position: absolute;
top: 0;
width: 0;
}
</style>
</head>
<body>
<p>This page demonstrates a goog.History object used in an iframe. Loading JS
code in an iframe is useful for large apps because the JS code can be sent in
bite-sized script blocks that browsers can evaluate incrementally, as they are
received over the wire.</p>
<p>For an introduction to the goog.History object, see <a
href="history1.html">history1.html</a> and <a
href="history2.html">history2.html</a>. This demo uses visible history, like
the first demo.</p>
<p>Try following the hash links below, or updating the location with your own
tokens. Replacing the token will update the page address without appending a
new history entry.</p>
<p>
Set #fragment<br>
<a href="#first">first</a><br>
<a href="#second">second</a><br>
<a href="#third">third</a>
</p>
<p>
Set Token<br>
<button onclick="setToken('//\\\\/\\/\\');">//\\/\/\</button>
<button onclick="setToken('{\'a\': \'123\', \'b\': \'456\'}');">
{'a': '123', 'b': '456'}
</button>
<button onclick="setToken('!@#$%^&*()_+-={}[]\\|;\':",./<>?');">
!@#$%^&*()_+-={}[]\|;':",./<>
</button>
<button onclick="setToken('%2F/foo');">%2F/foo</button>
<button onclick="setToken('%20 02%');">%20 02%</button>
</p>
<p>
<input type="text" id="token_input">
<button onclick="setToken()">Set Token</button>
<button onclick="replaceToken()">Replace Current Token</button>
</p>
<table><tr><td>
<h3>The current history state:</h3>
<div id="token_output"></div>
</td></tr></table>
<p>The state should be correctly restored after you
<a href="http://www.google.com/">leave the page</a> and hit the back button.</p>
<fieldset class="goog-debug-panel">
<legend>Event Log</legend>
<div id="log"></div>
</fieldset>
<input type="text" id="hist_state" style="display:none">
<iframe name="js" class="hidden-frame" src="history3js.html"></iframe>
<script>
function setToken(opt_val) {
if (js && js.googHist) {
var input = document.getElementById('token_input');
js.googHist.setToken(opt_val || input.value);
}
return false;
}
function replaceToken() {
if (js && js.googHist) {
var input = document.getElementById('token_input');
js.googHist.replaceToken(input.value);
}
return false;
}
</script>
</body>
</html>
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