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JavaScript DHTML » YUI Library » Popup Menu 
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.
    * Robert Penner's animation-easing algorithms: In the Animation Utility, YUI makes use of Robert Penner's algorithms for easing.
    * Geoff Stearns's SWFObject: In the Charts Control and the Uploader versions through 2.7.0, YUI makes use of Geoff Stearns's SWFObject v1.5 for Flash Player detection and embedding. More information on SWFObject can be found here (http://blog.deconcept.com/swfobject/). SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License (http://www.opensource.org/licenses/mit-license.php).
    * Diego Perini's IEContentLoaded technique: The Event Utility employs a technique developed by Diego Perini and licensed under GPL. YUI's use of this technique is included under our BSD license with the author's permission.

-->

<!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>
<!-- presentbright.corp.yahoo.com uncompressed/chunked Thu Feb 19 10:53:17 PST 2009 -->

   
  
yui_2.7.0b.zip( 4,431 k)
Related examples in the same category
1. Right-click on a row to see the ContextMenu integration in action
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