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AppCache demo w/jQuery Mobile & PHP
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| <!DOCTYPE html> | |
| <html manifest="manifest.appcache.php"> | |
| <head> | |
| <title>AppCache Demo</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0rc1/jquery.mobile-1.0rc1.min.css" /> | |
| <script src="http://code.jquery.com/jquery-1.6.4.min.js"></script> | |
| <script src="http://code.jquery.com/mobile/1.0rc1/jquery.mobile-1.0rc1.min.js"></script> | |
| </head> | |
| <body> | |
| <div data-role="page"> | |
| <div data-role="header"> | |
| <h1>AppCache Demo</h1> | |
| </div><!-- /header --> | |
| <div data-role="content"> | |
| <ul id="dynamic-content" data-role="listview"> | |
| <?php include('list.php'); // Rendered dynamically...unless this is cached ?> | |
| </ul> | |
| </div><!-- /content --> | |
| </div><!-- /page --> | |
| <script type="text/javascript"> | |
| $('[data-role="page"]').live('pageshow', init); // jQM-addled DOM is ready! | |
| function init() { | |
| var appCache = window.applicationCache, | |
| $content = $('#dynamic-content'); | |
| ensureFreshContent(); | |
| function ensureFreshContent () { | |
| // If browser doesn't support cache manifest, move along. | |
| // Note that we could (TODO) implement some sort of caching solution using | |
| // various local storage mechanisms for browsers that support, say, | |
| // IE User Data, but not HTML5 cache manifests | |
| if (!appCache) return; | |
| // Otherwise, hide the content until we know we have the latest | |
| // (TODO: display a loading indicator) | |
| $.mobile.showPageLoadingMsg(); | |
| $content.hide(); | |
| // If there's nothing to update, we'll show the cached version | |
| appCache.addEventListener('cached', showCached, false); | |
| appCache.addEventListener('error', showCached, false); | |
| appCache.addEventListener('noupdate', showCached, false); | |
| appCache.addEventListener('obsolete', showCached, false); | |
| // But if we recognize an update, swap out the cache & display it. | |
| appCache.addEventListener('updateready', updateCache, false); | |
| // Kick off the update | |
| appCache.update(); | |
| } | |
| function showCached (evt) { | |
| $content.show(); | |
| $.mobile.hidePageLoadingMsg(); | |
| } | |
| function updateCache (evt) { | |
| appCache.swapCache(); | |
| // .swapCache() has retrieved the updated MANIFEST, | |
| // but we still need to retrieve the updated resource. | |
| updateList(); | |
| $.mobile.hidePageLoadingMsg(); | |
| } | |
| function updateList() { | |
| // AJAX request to get updated dynamic data. | |
| // This will only get fresh data if the manifest | |
| // has been updated. | |
| $.get('list.php', function(data) { | |
| $content.html(data); | |
| $content.listview('refresh'); | |
| showCached(); // Needed explicitly | |
| $.mobile.hidePageLoadingMsg(); | |
| }); | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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| <?php | |
| // Set Modified header of right now | |
| header('Last-Modified: ' . date('r')); | |
| ?> | |
| <?php for ($i = 0; $i < 10; $i++): ?> | |
| <li><a href="#"><?php print date('M d, Y h:i:s'); ?></a></li> | |
| <?php endfor; ?> |
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| <?php header('Content-type: text/cache-manifest'); ?> | |
| CACHE MANIFEST | |
| # Update cache every 1 minutes | |
| # <?php echo (date('hi')); // Hi! Hah! ?> | |
| CACHE: | |
| list.php | |
| index.php | |
| http://code.jquery.com/mobile/1.0rc1/jquery.mobile-1.0rc1.min.css | |
| http://code.jquery.com/jquery-1.6.4.min.js | |
| http://code.jquery.com/mobile/1.0rc1/jquery.mobile-1.0rc1.min.js | |
| http://code.jquery.com/mobile/1.0rc1/images/ajax-loader.png | |
| http://code.jquery.com/mobile/1.0rc1/images/icons-18-white.png | |
| http://code.jquery.com/mobile/1.0rc1/images/icons-18-black.png | |
| http://code.jquery.com/mobile/1.0rc1/images/icons-36-white.png | |
| http://code.jquery.com/mobile/1.0rc1/images/icons-36-black.png |
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To get loading modal working, use page show instead of pageinit. See jquery-archive/jquery-mobile#2261