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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="../../build/reset/reset.css">
<link rel="stylesheet" type="text/css" href="../../build/fonts/fonts.css">
<!-- CSS for Menu -->
<link rel="stylesheet" type="text/css" href="../../build/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(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="../../build/yahoo/yahoo.js"></script>
<!-- Dependency source files -->
<script type="text/javascript" src="../../build/event/event.js"></script>
<script type="text/javascript" src="../../build/dom/dom.js"></script>
<script type="text/javascript" src="../../build/animation/animation.js"></script>
<!-- Container source file -->
<script type="text/javascript" src="../../build/container/container_core.js"></script>
<!-- Menu source file -->
<script type="text/javascript" src="../../build/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="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>
|
