Context Menu, popup menu
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Sources of Intellectual Property Included in the YUI Library
YUI is issued by Yahoo! under the BSD license above. Below is a list of certain publicly available software that is the source of intellectual property in YUI, along with the licensing terms that pertain to thosesources of IP. This list is for informational purposes only and is not intended to represent an exhaustive list of third party contributions to the YUI.
* Douglas Crockford's JSON parsing and stringifying methods: In the JSON Utility, Douglas Crockford's JSON parsing and stringifying methods are adapted from work published at JSON.org. The adapted work is in the public domain.
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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>Example: Context Menu (YUI Library)</title>
<!-- Standard reset and fonts -->
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/reset/reset.css">
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/fonts/fonts.css">
<!-- CSS for Menu -->
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/menu/assets/skins/sam/menu.css">
<!-- Page-specific styles -->
<style type="text/css">
h1 {
font-weight: bold;
margin: 0 0 1em 0;
}
body {
padding: 1em;
}
p, ul {
margin: 1em 0;
}
p em,
#operainstructions li em {
font-weight: bold;
}
#operainstructions {
list-style-type: square;
margin-left: 2em;
}
#clones {
background: #99cc66 url(yui_2.7.0b-assets/menu-assets/grass.png);
/* Hide the alpha PNG from IE 6 */
_background-image: none;
width: 450px;
height: 400px;
overflow: auto;
}
#clones li {
float: left;
display: inline;
border: solid 1px #000;
background-color: #fff;
margin: 10px;
text-align: center;
zoom: 1;
}
#clones li img {
border: solid 1px #000;
margin: 5px;
}
#clones li cite {
display: block;
text-align: center;
margin: 0 0 5px 0;
padding: 0 5px;
}
</style>
<!-- Namespace source file -->
<script type="text/javascript" src="yui_2.7.0b-lib/yahoo/yahoo.js"></script>
<!-- Dependency source files -->
<script type="text/javascript" src="yui_2.7.0b-lib/event/event.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/dom/dom.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/animation/animation.js"></script>
<!-- Container source file -->
<script type="text/javascript" src="yui_2.7.0b-lib/container/container_core.js"></script>
<!-- Menu source file -->
<script type="text/javascript" src="yui_2.7.0b-lib/menu/menu.js"></script>
<!-- Page-specific script -->
<script type="text/javascript">
/*
Initialize the ContextMenu instances when the the elements
that trigger their display are ready to be scripted.
*/
YAHOO.util.Event.onContentReady("clones", function () {
// Maintain a reference to the "clones" <ul>
var oClones = this;
// Clone the first ewe so that we can create more later
var oLI = oClones.getElementsByTagName("li")[0];
var oEweTemplate = oLI.cloneNode(true);
// Renames an "ewe"
function editEweName(p_oLI) {
var oCite = p_oLI.lastChild;
if (oCite.nodeType != 1) {
oCite = oCite.previousSibling;
}
var oTextNode = oCite.firstChild;
var sName = window.prompt("Enter a new name for ",
oTextNode.nodeValue);
if (sName && sName.length > 0) {
oTextNode.nodeValue = sName;
}
}
// Clones an "ewe"
function cloneEwe(p_oLI, p_oMenu) {
var oClone = p_oLI.cloneNode(true);
p_oLI.parentNode.appendChild(oClone);
p_oMenu.cfg.setProperty("trigger", oClones.childNodes);
}
// Deletes an "ewe"
function deleteEwe(p_oLI) {
var oUL = p_oLI.parentNode;
oUL.removeChild(p_oLI);
}
// "click" event handler for each item in the ewe context menu
function onEweContextMenuClick(p_sType, p_aArgs) {
/*
The second item in the arguments array (p_aArgs)
passed back to the "click" event handler is the
MenuItem instance that was the target of the
"click" event.
*/
var oItem = p_aArgs[1], // The MenuItem that was clicked
oTarget = this.contextEventTarget,
oLI;
if (oItem) {
oLI = oTarget.nodeName.toUpperCase() == "LI" ?
oTarget : YAHOO.util.Dom.getAncestorByTagName(oTarget, "LI");
switch (oItem.index) {
case 0: // Edit name
editEweName(oLI);
break;
case 1: // Clone
cloneEwe(oLI, this);
break;
case 2: // Delete
deleteEwe(oLI);
break;
}
}
}
/*
Array of text labels for the MenuItem instances to be
added to the ContextMenu instanc.
*/
var aMenuItems = ["Edit Name", "Clone", "Delete" ];
/*
Instantiate a ContextMenu: 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 oEweContextMenu = new YAHOO.widget.ContextMenu(
"ewecontextmenu",
{
trigger: oClones.childNodes,
itemdata: aMenuItems,
lazyload: true
}
);
// "render" event handler for the ewe context menu
function onContextMenuRender(p_sType, p_aArgs) {
// Add a "click" event handler to the ewe context menu
this.subscribe("click", onEweContextMenuClick);
}
// Add a "render" event handler to the ewe context menu
oEweContextMenu.subscribe("render", onContextMenuRender);
// Deletes an ewe from the field
function deleteEwes() {
oEweContextMenu.cfg.setProperty("target", null);
oClones.innerHTML = "";
function onHide(p_sType, p_aArgs, p_oItem) {
p_oItem.cfg.setProperty("disabled", true);
p_oItem.parent.unsubscribe("hide", onHide, p_oItem);
}
this.parent.subscribe("hide", onHide, this);
}
// Creates a new ewe and appends it to the field
function createNewEwe() {
var oLI = oEweTemplate.cloneNode(true);
oClones.appendChild(oLI);
this.parent.getItem(1).cfg.setProperty("disabled", false);
oEweContextMenu.cfg.setProperty("trigger", oClones.childNodes);
}
// Sets the color of the grass in the field
function setFieldColor(p_sType, p_aArgs, p_sColor) {
var oCheckedItem = this.parent.checkedItem;
if (oCheckedItem != this) {
YAHOO.util.Dom.setStyle("clones", "backgroundColor", p_sColor);
this.cfg.setProperty("checked", true);
oCheckedItem.cfg.setProperty("checked", false);
this.parent.checkedItem = this;
}
}
// "render" event handler for the field context menu
function onFieldMenuRender(p_sType, p_aArgs) {
if (this.parent) { // submenu
this.checkedItem = this.getItem(0);
}
}
/*
Array of object literals - each containing configuration
properties for the items for the context menu.
*/
var oFieldContextMenuItemData = [
{
text: "Field color",
submenu: {
id: "fieldcolors",
itemdata: [
{ text: "Light Green", onclick: { fn: setFieldColor, obj: "#99cc66" }, checked: true },
{ text: "Medium Green", onclick: { fn: setFieldColor, obj: "#669933" } },
{ text: "Dark Green", onclick: { fn: setFieldColor, obj: "#336600" } }
]
}
},
{ text: "Delete all", onclick: { fn: deleteEwes } },
{ text: "New Ewe", onclick: { fn: createNewEwe } }
];
/*
Instantiate a ContextMenu: 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 oFieldContextMenu = new YAHOO.widget.ContextMenu(
"fieldcontextmenu",
{
trigger: "clones",
itemdata: oFieldContextMenuItemData,
lazyload: true
}
);
// Add a "render" event handler to the field context menu
oFieldContextMenu.subscribe("render", onFieldMenuRender);
});
</script>
</head>
<body class="yui-skin-sam">
<ul id="clones">
<li><a href="http://en.wikipedia.org/wiki/Dolly_%28clone%29"><img src="yui_2.7.0b-assets/menu-assets/dolly.jpg" width="100" height="100" alt="Dolly, a ewe, the first mammal to have been successfully cloned from an adult cell."></a><cite>Dolly</cite></li>
</ul>
</body>
</html>
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yui_2.7.0b.zip( 4,431 k)Related examples in the same category