Mega Code Archive
Use the Browser History Manager with several different modules
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Multiple Modules</title>
<style type="text/css">
/*margin and padding on body element
can introduce errors in determining
element position and are not recommended;
we turn them off as a foundation for YUI
CSS treatments. */
body {
margin:0;
padding:0;
}
</style>
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/fonts/fonts-min.css" />
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/calendar/assets/skins/sam/calendar.css" />
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/tabview/assets/skins/sam/tabview.css" />
<script type="text/javascript" src="yui_2.7.0b-lib/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/element/element-min.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/calendar/calendar-min.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/tabview/tabview-min.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/history/history-min.js"></script>
<!--there is no custom header content for this example-->
</head>
<body class=" yui-skin-sam">
<h1>Multiple Modules</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to use the Browser History Manager
with several different modules. Working with several modules
is not different from working with a single module. All the modules
have to be registered separately, and each module has its own
initial state and callback.
</p>
</div>
<!--BEGIN SOURCE CODE FOR EXAMPLE -->
<style>
#yui-history-iframe {
position:absolute;
top:0; left:0;
width:1px; height:1px; /* avoid scrollbars */
visibility:hidden;
}
#demo { margin-bottom:1em; }
</style>
<!-- Static markup required by the browser history utility. Note that the
iframe is only used on Internet Explorer. If this page is server
generated (by a PHP script for example), it is a good idea to create
the IFrame ONLY for Internet Explorer (use server side user agent sniffing) -->
<iframe id="yui-history-iframe" src="yui_2.7.0b-assets/history-assets/blank.html"></iframe>
<input id="yui-history-field" type="hidden">
<!-- Static markup required for the TabView and calendar widgets. -->
<div id="demo" class="yui-navset yui-navset-top">
<ul class="yui-nav">
<li><a href="#tab1"><em>Tab One Label</em></a></li>
<li title="active" class="selected"><a href="#tab2"><em>Tab Two Label</em></a></li>
<li title="" class=""><a href="#tab3"><em>Tab Three Label</em></a></li>
</ul>
<div class="yui-content">
<div style="display: none;" id="tab1"><p>Tab One Content</p></div>
<div style="display: block;" id="tab2"><p>Tab Two Content</p></div>
<div style="display: none;" id="tab3"><p>Tab Three Content</p></div>
</div>
</div>
<div id="calendarContainer"></div>
<script>
(function () {
// The initial month will be chosen in the following order:
//
// URL fragment identifier (it will be there if the user previously
// bookmarked the application in a specific state)
//
// or
//
// today's corresponding month (default)
var today = new Date();
var defaultCalendarState = (today.getMonth() + 1) + "_" + today.getFullYear();
var bookmarkedCalendarState = YAHOO.util.History.getBookmarkedState("calendar");
var initialCalendarState = bookmarkedCalendarState || defaultCalendarState;
// The initially selected tab will be chosen in the following order:
//
// URL fragment identifier (it will be there if the user previously
// bookmarked the application in a specific state)
//
// or
//
// "tab0" (default)
var bookmarkedTabViewState = YAHOO.util.History.getBookmarkedState("tabview");
var initialTabViewState = bookmarkedTabViewState || "tab0";
var calendar;
var tabView;
// Register our calendar module. Module registration MUST
// take place before calling YAHOO.util.History.initialize.
YAHOO.util.History.register("calendar", initialCalendarState, function (state) {
// This is called after calling YAHOO.util.History.navigate, or after the user
// has trigerred the back/forward button. We cannot discrminate between
// these two situations.
// Show the right month according to the "state" parameter:
calendar.cfg.setProperty("pagedate", state.replace("_", "/"));
calendar.render();
});
// Register our TabView module. Module registration MUST
// take place before calling YAHOO.util.History.initialize.
YAHOO.util.History.register("tabview", initialTabViewState, function (state) {
// This is called after calling YAHOO.util.History.navigate, or after the user
// has trigerred the back/forward button. We cannot discrminate between
// these two situations.
// "state" can be "tab0", "tab1" or "tab2".
// Select the right tab:
tabView.set("activeIndex", state.substr(3));
});
function handleCalendarBeforeRender () {
var calDate, newState, currentState;
calDate = calendar.cfg.getProperty("pageDate");
newState = (calDate.getMonth() + 1) + "_" + calDate.getFullYear();
try {
currentState = YAHOO.util.History.getCurrentState("calendar");
// The following test is crucial. Otherwise, we end up circling forever.
// Indeed, YAHOO.util.History.navigate will call the module onStateChange
// callback, which will call createCalendar, which will call calendar.render(),
// which will end up calling handleCalendarBeforeRender, and it keeps going
// from here...
if (newState !== currentState) {
YAHOO.util.History.navigate("calendar", newState);
}
} catch (e) {
calendar.cfg.setProperty("pagedate", newState.replace("_", "/"));
calendar.render();
}
}
function initCalendar (startDate) {
// Instantiate the calendar control...
calendar = new YAHOO.widget.Calendar("calendar", "calendarContainer", startDate);
calendar.beforeRenderEvent.subscribe(handleCalendarBeforeRender, calendar, true);
calendar.render();
}
function handleTabViewActiveTabChange (e) {
var newState, currentState;
newState = "tab" + this.getTabIndex(e.newValue);
try {
currentState = YAHOO.util.History.getCurrentState("tabview");
// The following test is crucial. Otherwise, we end up circling forever.
// Indeed, YAHOO.util.History.navigate will call the module onStateChange
// callback, which will call tabView.set, which will call this handler
// and it keeps going from here...
if (newState != currentState) {
YAHOO.util.History.navigate("tabview", newState);
}
} catch (e) {
tabView.set("activeIndex", newState.substr(3));
}
}
function initTabView () {
// Instantiate the TabView control...
tabView = new YAHOO.widget.TabView("demo");
tabView.addListener("activeTabChange", handleTabViewActiveTabChange);
}
// Use the Browser History Manager onReady method to initialize the application.
YAHOO.util.History.onReady(function () {
var currentState;
currentState = YAHOO.util.History.getCurrentState("calendar");
initCalendar({ pagedate: currentState.replace("_", "/") });
initTabView();
currentState = YAHOO.util.History.getCurrentState("tabview");
tabView.set("activeIndex", currentState.substr(3));
});
// Initialize the browser history management library.
try {
YAHOO.util.History.initialize("yui-history-field", "yui-history-iframe");
} catch (e) {
// The only exception that gets thrown here is when the browser is
// not supported (Opera, or not A-grade) Degrade gracefully.
initCalendar({ pagedate: initialCalendarState.replace("_", "/") });
initTabView();
}
})();
</script>
<!--END SOURCE CODE FOR EXAMPLE -->
</body>
</html>
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yui_2.7.0b.zip( 4,431 k)
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