93 lines
4.1 KiB
HTML
93 lines
4.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>YUI Browser History Manager - Calendar Example</title>
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<link rel="stylesheet" type="text/css" href="../../../build/reset-fonts-grids/reset-fonts-grids.css"/>
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<link rel="stylesheet" type="text/css" href="../../../build/calendar/assets/calendar.css">
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<link rel="stylesheet" type="text/css" href="../assets/solution.css"/>
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<script src="../../../build/yahoo/yahoo.js"></script>
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<script src="../../../build/event/event.js"></script>
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<script src="../../../build/dom/dom.js"></script>
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<script src="../../../build/calendar/calendar.js"></script>
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<script src="../../../build/history/history-experimental.js"></script>
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</head>
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<body>
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<script>
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// The initial month will be chosen in the following order:
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//
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// URL fragment identifier (it will be there if the user previously
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// bookmarked the application in a specific state)
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//
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// or
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//
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// today's corresponding month (default)
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var today = new Date();
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var defaultCalendarState = ( today.getMonth() + 1 ) + "_" + today.getFullYear();
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var bookmarkedCalendarState = YAHOO.util.History.getBookmarkedState( "calendar" );
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var initialCalendarState = bookmarkedCalendarState || defaultCalendarState;
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var calendar;
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// Register our calendar module. Module registration MUST
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// take place before calling YAHOO.util.History.initialize.
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YAHOO.util.History.register( "calendar", initialCalendarState, function( state ) {
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// This is called after calling YAHOO.util.History.navigate, or after the user
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// has trigerred the back/forward button. We cannot discrminate between
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// these two situations.
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// Show the right month according to the "state" parameter:
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calendar.cfg.setProperty( "pagedate", state.replace( "_", "/" ) );
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calendar.render();
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} );
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// Subscribe to this event before calling YAHOO.util.History.initialize,
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// or it may never get fired! Note that this is guaranteed to be fired
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// after the window's onload event.
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YAHOO.util.History.onLoadEvent.subscribe( function() {
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// This is the tricky part... The onLoad event is fired when the user
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// comes back to the page using the back button. In this case, the
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// actual month that needs to be loaded corresponds to the last month
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// visited before leaving the page, and not the initial month. This can
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// be retrieved using getCurrentState:
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var currentState = YAHOO.util.History.getCurrentState( "calendar" );
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var startDate = { pagedate: currentState.replace( "_", "/" ) };
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// Instantiate the calendar control...
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calendar = new YAHOO.widget.Calendar( "calendar", "calendarContainer", startDate );
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calendar.beforeRenderEvent.subscribe( handleCalendarBeforeRender, calendar, true );
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calendar.render();
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} );
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function handleCalendarBeforeRender() {
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var calDate = calendar.cfg.getProperty( "pageDate" );
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var pageDate = ( calDate.getMonth() + 1 ) + "_" + calDate.getFullYear();
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// The following test is crucial. Otherwise, we end up circling forever.
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// Indeed, YAHOO.util.History.navigate will call the module onStateChange callback,
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// which will call createCalendar, which will call calendar.render(), which will
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// end up calling handleCalendarBeforeRender, and it keeps going from here...
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var currentState = YAHOO.util.History.getCurrentState( "calendar" );
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if ( pageDate != currentState )
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YAHOO.util.History.navigate( "calendar", pageDate );
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}
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// The call to YAHOO.util.History.initialize should ALWAYS be from within
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// a script block located RIGHT AFTER the body tag (this seems to prevent
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// an edge case bug on IE - IE seems to sometimes forget the history when
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// coming back to a page, and the back - or forward button depending on the
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// situation - is disabled...)
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YAHOO.util.History.initialize();
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</script>
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<div id="doc">
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<div id="hd">
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<img src="../assets/yui.gif" alt="YUI Logo" id="logo"/>
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</div>
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<div id="bd">
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<div id="calendarContainer"></div>
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</div>
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<div id="ft">YUI Browser History Manager - Calendar Example</div>
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</div>
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</body>
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</html>
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