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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>Listening For Menu 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;
}
/*
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>Listening For Menu Events</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to listen for DOM-related events. Interaction
with the Menu will result in event information being output to the console.
<em>Please note</em>: Disabled MenuItem instances do not fire DOM events. This
is demonstrated with the MenuItem named "MenuItem 2."
</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 () {
/*
Generic event handler used to log info about the DOM events for
the Menu instance.
*/
function onMenuEvent(p_sType, p_aArgs) {
var oDOMEvent = p_aArgs[0];
YAHOO.log(("Id: " + this.id + ", " +
"Custom Event Type: " + p_sType + ", " +
"DOM Event Type: " + oDOMEvent.type),
"info", "example10");
}
/*
Generic event handler used to log info about the DOM events for
each MenuItem instance.
*/
function onMenuItemEvent(p_sType, p_aArgs) {
var oDOMEvent = p_aArgs[0];
YAHOO.log(("Index: " + this.index + ", " +
"Group Index: " + this.groupIndex + ", " +
"Custom Event Type: " + p_sType + ", " +
"DOM Event Type: " + oDOMEvent.type
), "info", "example10");
}
/*
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
oMenu.subscribe("itemAdded", function (p_sType, p_aArgs) {
var oMenuItem = p_aArgs[0];
/*
Subscribe to each MenuItem instance's DOM events as they
are added to the Menu instance.
*/
oMenuItem.subscribe("mouseover", onMenuItemEvent);
oMenuItem.subscribe("mouseout", onMenuItemEvent);
oMenuItem.subscribe("mousedown", onMenuItemEvent);
oMenuItem.subscribe("mouseup", onMenuItemEvent);
oMenuItem.subscribe("click", onMenuItemEvent);
oMenuItem.subscribe("keydown", onMenuItemEvent);
oMenuItem.subscribe("keyup", onMenuItemEvent);
oMenuItem.subscribe("keypress", onMenuItemEvent);
});
// Subscribe to every DOM event for the Menu instance.
oMenu.subscribe("mouseover", onMenuEvent);
oMenu.subscribe("mouseout", onMenuEvent);
oMenu.subscribe("mousedown", onMenuEvent);
oMenu.subscribe("mouseup", onMenuEvent);
oMenu.subscribe("click", onMenuEvent);
oMenu.subscribe("keydown", onMenuEvent);
oMenu.subscribe("keyup", onMenuEvent);
oMenu.subscribe("keypress", onMenuEvent);
/*
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([
"MenuItem 0",
"MenuItem 1",
/*
Add a disabled menu item to demonstrate that disabled
items do not respond to DOM events.
*/
{ text: "MenuItem 2", disabled: true },
"MenuItem 3",
"MenuItem 4"
]);
/*
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>
|
