Setting Menu Configuration Properties At Runtime
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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>Setting Menu Configuration Properties At Runtime</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/menu/assets/skins/sam/menu.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/container/container_core-min.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/menu/menu-min.js"></script>
<!--begin custom header content for this example-->
<style type="text/css">
/*
Set the "zoom" property to "normal" since it is set to "1" by the
".example-container .bd" rule in yui.css and this causes a Menu
instance's width to expand to 100% of the browser viewport.
*/
div.yuimenu .bd {
zoom: normal;
}
/*
Overrides for the ".example-container a:visited" in the
the yui.css file.
*/
div.yuimenu a.yuimenuitemlabel-disabled:visited {
color: #A6A6A6;
}
</style>
<!--end custom header content for this example-->
</head>
<body class=" yui-skin-sam">
<h1>Setting Menu Configuration Properties At Runtime</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to set MenuItem configuration properties at
runtime and listen for the changes through the "configChanged" event.
</p>
<p id="clicknote">
<em>Note:</em> By default clicking outside of a menu will hide it.
Additionally, menu items without a submenu or a URL to navigate to will hide their
parent menu when clicked. Click the "Show Menu" button below to make the menu
visible if it is hidden.
</p>
</div>
<!--BEGIN SOURCE CODE FOR EXAMPLE -->
<script type="text/javascript">
/*
Initialize and render the Menu when the element it is to be
rendered into is ready to be scripted.
*/
YAHOO.util.Event.onAvailable("rendertarget", function () {
/*
"configChange" event handler for each MenuItem instance - used
to log info about the configuration property that was changed.
*/
function onMenuItemConfigChange(p_sType, p_aArgs) {
var sPropertyName = p_aArgs[0][0],
sPropertyValue = p_aArgs[0][1];
YAHOO.log(("Index: " + this.index + ", " +
"Group Index: " + this.groupIndex + ", " +
"Custom Event Type: " + p_sType + ", " +
"\"" + sPropertyName + "\" Property Set To: \""
+ sPropertyValue + "\""), "info", "example12");
}
/*
Instantiate a Menu: The first argument passed to the constructor
is the id for the Menu element to be created, the second is an
object literal of configuration properties.
*/
var oMenu = new YAHOO.widget.Menu("basicmenu", { fixedcenter: true });
/*
Subscribe to the Menu instance's "itemAdded" event in order to
subscribe to the "configChange" event handler of each MenuItem
instance's configuration object.
*/
oMenu.subscribe("itemAdded", function (p_sType, p_aArgs) {
var oMenuItem = p_aArgs[0];
/*
Subscribe to the "configChange" event handler of each MenuItem
instance's configuration object.
*/
oMenuItem.cfg.subscribe("configChanged", onMenuItemConfigChange);
});
/*
Add items to the Menu instance by passing an array of strings
(each of which represents the "text" configuration property of a
YAHOO.widget.MenuItem instance) to the "addItems" method.
*/
oMenu.addItems([
"Selected MenuItem",
"Disabled MenuItem",
"MenuItem With A URL",
"Checked MenuItem"
]);
/*
Since this Menu instance is built completely from script, call the
"render" method passing in the DOM element that it should be
appended to.
*/
oMenu.render("rendertarget");
/*
Set a configuration property of each MenuItem to trigger the firing
of its configuration object's "configChanged" event.
*/
oMenu.getItem(0).cfg.setProperty("selected", true);
oMenu.getItem(1).cfg.setProperty("disabled", true);
oMenu.getItem(2).cfg.setProperty("url", "http://www.yahoo.com");
oMenu.getItem(3).cfg.setProperty("checked", true);
YAHOO.util.Event.addListener("menutoggle", "click", oMenu.show, null, oMenu);
});
</script>
<button id="menutoggle" type="button">Show Menu</button>
<div id="rendertarget"></div>
<!--END SOURCE CODE FOR EXAMPLE -->
</body>
</html>
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