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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>Handling Menu Click Events</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="../../build/fonts/fonts-min.css" />
<link rel="stylesheet" type="text/css" href="../../build/menu/assets/skins/sam/menu.css" />
<script type="text/javascript" src="../../build/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="../../build/container/container_core-min.js"></script>
<script type="text/javascript" src="../../build/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;
}
</style>
<!--end custom header content for this example-->
</head>
<body class="yui-skin-sam">
<h1>Handling Menu Click Events</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to register a "click" event handler for a
MenuItem instance.
</p>
<p id="clicknote">
<em>Note:</em> By default clicking outside of a Menu instance will hide it.
Additionally, MenuItem instances without a submenu or a URL to navigate to will
hide their parent Menu instance when clicked. Click the "Show Menu" button
below to make the Menu instance 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 () {
/*
"click" event handler for the Menu instance - used to keep the Menu
instance visible when clicked, since by default a Menu instance
will hide when clicked.
*/
function onMenuClick(p_sType, p_aArgs, p_oValue) {
this.show();
}
/*
"click" event handler for each MenuItem instance - used to log
info about the MenuItem that was clicked.
*/
function onMenuItemClick(p_sType, p_aArgs, p_oValue) {
YAHOO.log(("index: " + this.index +
", text: " + this.cfg.getProperty("text") +
", value: " + p_oValue), "info", "example9");
}
/*
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("mymenu", { fixedcenter: true });
/*
Add items to the Menu instance by passing an array of object literals
(each of which represents a set of YAHOO.widget.MenuItem
configuration properties) to the "addItems" method.
*/
oMenu.addItems([
// Register a "click" event handler for the first item.
{ text: "Item One", onclick: { fn: onMenuItemClick } },
/*
Register a "click" event handler for the second item,
passing a string arguemnt ("foo") to the event handler.
*/
{ text: "Item Two", onclick: { fn: onMenuItemClick, obj: "foo" } },
/*
Register a "click" event handler for the third item and
passing and array as an argument to the event handler.
*/
{ text: "Item Three", onclick: { fn: onMenuItemClick, obj: ["foo", "bar"] } }
]);
oMenu.subscribe("click", onMenuClick);
/*
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");
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>
|
