Andreas Hocevar
133 lines
4.0 KiB
HTML
133 lines
4.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<!--
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Copyright 2010 The Closure Library Authors. All Rights Reserved.
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Use of this source code is governed by the Apache License, Version 2.0.
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See the COPYING file for details.
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-->
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<head>
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<title>goog.History</title>
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<link rel="stylesheet" href="css/demo.css">
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<style>
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table {
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border: 1px solid #666;
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background: lightblue;
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margin: 1em auto;
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}
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td {
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text-align: center;
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padding: 0 0.5em 0.5em 0.5em;
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}
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</style>
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<script src="../base.js"></script>
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<script>
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goog.require('goog.History');
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goog.require('goog.debug.DivConsole');
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goog.require('goog.dom');
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goog.require('goog.events');
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goog.require('goog.history.EventType');
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goog.require('goog.log');
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goog.require('goog.object');
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goog.require('goog.string');
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</script>
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</head>
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<body>
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<h1>goog.History</h1>
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<p>This page demonstrates the goog.History object which can create new browser
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history entries without leaving the page. This version uses the hash portion of
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the URL to make the history state available to the user. These URLs can be
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bookmarked, edited, pasted in emails, etc., just like normal URLs. The browser's
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back and forward buttons will navigate between the visited history states.</p>
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<p>Try following the hash links below, or updating the location with your own
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tokens. Replacing the token will update the page address without appending a
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new history entry.</p>
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<p>
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Set #fragment<br>
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<a href="#first">first</a><br>
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<a href="#second">second</a><br>
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<a href="#third">third</a>
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</p>
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<p>
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Set Token<br>
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<button onclick="setToken('//\\\\/\\/\\');">//\\/\/\</button>
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<button onclick="setToken('{\'a\': \'123\', \'b\': \'456\'}');">
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{'a': '123', 'b': '456'}
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</button>
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<button onclick="setToken('!@#$%^&*()_+-={}[]\\|;\':",./<>?');">
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!@#$%^&*()_+-={}[]\|;':",./<>
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</button>
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<button onclick="setToken('%2F/foo');">%2F/foo</button>
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<button onclick="setToken('%20 02%');">%20 02%</button>
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</p>
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<p>
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<input type="text" id="token_input" />
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<button onclick="setToken()">Set Token</button>
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<button onclick="replaceToken()">Replace Current Token</button>
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</p>
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<table><tr><td>
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<h3>The current history state:</h3>
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<div id="token_output"></div>
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</td></tr></table>
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<p>The state should be correctly restored after you
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<a href="http://www.google.com/">leave the page</a> and hit the back button.</p>
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<p>The history object can also be created so that the history state is not
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user-visible/modifiable.
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See <a href="history2.html#came from history 1">history2.html</a> for a demo.
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To see visible/modifiable history work when the goog.History code itself is
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loaded inside a hidden iframe,
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see <a href="history3.html#came from history 1">history3.html</a>.
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</p>
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<fieldset class="goog-debug-panel">
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<legend>Event Log</legend>
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<div id="log"></div>
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</fieldset>
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<script>
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var logger = goog.log.getLogger('demo');
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var logconsole = new goog.debug.DivConsole(goog.dom.getElement('log'));
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logconsole.setCapturing(true);
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var events = goog.object.getValues(goog.history.EventType);
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goog.log.info(logger, 'Listening for: ' + events.join(', ') + '.');
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var h = new goog.History();
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goog.events.listen(h, events, function(e) {
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goog.log.info(logger, goog.string.subs('dispatched: %s (token="%s", isNavigation=%s)',
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e.type, e.token, e.isNavigation));
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});
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goog.events.listen(h, goog.history.EventType.NAVIGATE, navCallback);
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h.setEnabled(true);
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function setToken(opt_val) {
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var input = goog.dom.getElement('token_input');
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h.setToken(opt_val || input.value);
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return false;
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}
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function replaceToken() {
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var input = goog.dom.getElement('token_input');
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h.replaceToken(input.value);
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}
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function navCallback(e) {
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var output = goog.dom.getElement('token_output');
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if (output) {
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var token = (e.token == null) ? 'null' : '\u201C' + e.token + '\u201D';
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goog.dom.setTextContent(output, token);
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}
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}
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</script>
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</body>
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</html>
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