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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<title>Example: Drag Delegation with a Drop Target</title> |
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<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic"> |
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<link rel="stylesheet" href="../../build/cssgrids/cssgrids-min.css"> |
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<link rel="stylesheet" href="../assets/css/main.css"> |
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<link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css"> |
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<link rel="shortcut icon" type="image/png" href="../assets/favicon.png"> |
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<script src="../../build/yui/yui-min.js"></script> |
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</head> |
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<body> |
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<!-- |
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<a href="https://github.com/yui/yui3"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub"></a> |
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--> |
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<div id="doc"> |
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<div id="hd"> |
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<h1><img src="http://yuilibrary.com/img/yui-logo.png"></h1> |
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</div> |
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<a href="#toc" class="jump">Jump to Table of Contents</a> |
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<h1>Example: Drag Delegation with a Drop Target</h1> |
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<div class="yui3-g"> |
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<div class="yui3-u-3-4"> |
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<div id="main"> |
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<div class="content"><div class="intro"> |
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<p>This example shows how to create multiple draggable items efficiently, still allowing for Drop Targets.</p> |
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</div> |
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<div class="example"> |
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<style> |
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#demo { |
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width: 200px; |
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} |
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#demo ul li { |
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border: 1px solid black; |
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background-color: #8DD5E7; |
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cursor: move; |
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margin: 3px; |
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list-style-type: none; |
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z-index: 2; |
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zoom: 1; |
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} |
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#play { |
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position: relative; |
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zoom: 1; |
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} |
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#drop { |
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border: 1px solid black; |
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background-color: #eee; |
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height: 50px; |
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width: 200px; |
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position: absolute; |
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bottom: 5px; |
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right: 5px; |
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zoom: 1; |
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} |
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#drop strong { |
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font-weight: bold; |
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} |
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#drop.yui3-dd-drop-over { |
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background-color: #ccc; |
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} |
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</style> |
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<div id="play"> |
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<div id="demo"> |
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<ul> |
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<li>Item #1</li> |
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<li>Item #2</li> |
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<li>Item #3</li> |
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<li>Item #4</li> |
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<li>Item #5</li> |
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<li>Item #6</li> |
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<li>Item #7</li> |
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<li>Item #8</li> |
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<li>Item #9</li> |
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<li>Item #10</li> |
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</ul> |
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</div> |
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<div id="drop">Drop on me</div> |
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</div> |
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<script> |
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YUI().use('dd-delegate', 'dd-drop-plugin', function(Y) { |
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var del = new Y.DD.Delegate({ |
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container: '#demo', |
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nodes: 'li' |
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}); |
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del.on('drag:end', function(e) { |
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del.get('currentNode').setStyles({ |
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top: 0, |
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left: 0 |
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}); |
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}); |
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var drop = Y.one('#drop').plug(Y.Plugin.Drop); |
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drop.drop.on('drop:hit', function(e) { |
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drop.set('innerHTML', 'You dropped: <strong>' + e.drag.get('node').get('innerHTML') + '</strong>'); |
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}); |
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}); |
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</script> |
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</div> |
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<h3 id="setting-up-the-delegate-container-and-items">Setting up the Delegate container and items</h3> |
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<p>First we need to create an HTML Node to act as the delegate container and give it some nodes to make draggable.</p> |
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<pre class="code prettyprint"><div id="play"> |
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<div id="demo"> |
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<ul> |
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<li>Item #1</li> |
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<li>Item #2</li> |
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<li>Item #3</li> |
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<li>Item #4</li> |
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<li>Item #5</li> |
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<li>Item #6</li> |
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<li>Item #7</li> |
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<li>Item #8</li> |
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<li>Item #9</li> |
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<li>Item #10</li> |
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</ul> |
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</div> |
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<div id="drop">Drop on me</div> |
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</div></pre> |
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<p>Now we give them some CSS to make them visible.</p> |
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<pre class="code prettyprint">#demo { |
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width: 200px; |
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} |
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#demo ul li { |
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border: 1px solid black; |
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background-color: #8DD5E7; |
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cursor: move; |
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margin: 3px; |
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list-style-type: none; |
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z-index: 2; |
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zoom: 1; |
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} |
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#play { |
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position: relative; |
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zoom: 1; |
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} |
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#drop { |
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border: 1px solid black; |
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background-color: #eee; |
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height: 50px; |
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width: 200px; |
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position: absolute; |
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bottom: 5px; |
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right: 5px; |
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zoom: 1; |
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} |
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#drop strong { |
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font-weight: bold; |
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} |
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#drop.yui3-dd-drop-over { |
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background-color: #ccc; |
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}</pre> |
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<h3 id="setting-up-the-yui-instance">Setting up the YUI Instance</h3> |
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<p>Now we need to create our YUI instance and tell it to load the <code>dd-delegate</code> module.</p> |
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<pre class="code prettyprint">YUI().use('dd-delegate', 'dd-drop-plugin');</pre> |
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<h3 id="making-the-nodes-draggable">Making the Nodes draggable</h3> |
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<p>Now that we have a YUI instance with the <code>dd-delegate</code> module, we need to instantiate the <code>Delegate</code> instance on this container and nodes.</p> |
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<pre class="code prettyprint">YUI().use('dd-delegate', 'dd-drop-plugin', function(Y) { |
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var del = new Y.DD.Delegate({ |
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container: '#demo', |
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nodes: 'li' |
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}); |
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});</pre> |
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<h3 id="listening-to-some-events">Listening to some events</h3> |
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<p>The <code>Delegate</code> object is a bubble target for the <code>DD.Drag</code> instances. So you can listen on it for all drag related events.</p> |
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<pre class="code prettyprint">YUI().use('dd-delegate', 'dd-drop-plugin', function(Y) { |
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var del = new Y.DD.Delegate({ |
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container: '#demo', |
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nodes: 'li' |
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}); |
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del.on('drag:end', function(e) { |
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del.get('currentNode').setStyles({ |
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top: 0, |
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left: 0 |
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}); |
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}); |
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});</pre> |
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<h3 id="adding-a-drop-target">Adding a Drop Target</h3> |
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<p>Now we can add a normal Drop Target to the page.</p> |
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<pre class="code prettyprint">var drop = Y.one('#drop').plug(Y.Plugin.Drop);</pre> |
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<p>Once that is created, we can add a <code>drop:hit</code> listener and manipulate the drag instance as we normally would.</p> |
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<pre class="code prettyprint">var drop = Y.one('#drop').plug(Y.Plugin.Drop); |
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drop.drop.on('drop:hit', function(e) { |
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drop.set('innerHTML', 'You dropped: <strong>' + e.drag.get('node').get('innerHTML') + '</strong>'); |
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});</pre> |
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<h3 id="full-javascript-source">Full Javascript Source</h3> |
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<pre class="code prettyprint">YUI().use('dd-delegate', 'dd-drop-plugin', function(Y) { |
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var del = new Y.DD.Delegate({ |
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container: '#demo', |
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nodes: 'li' |
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}); |
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del.on('drag:end', function(e) { |
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del.get('currentNode').setStyles({ |
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top: 0, |
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left: 0 |
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}); |
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}); |
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var drop = Y.one('#drop').plug(Y.Plugin.Drop); |
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drop.drop.on('drop:hit', function(e) { |
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drop.set('innerHTML', 'You dropped: <strong>' + e.drag.get('node').get('innerHTML') + '</strong>'); |
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}); |
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});</pre> |
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</div> |
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</div> |
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</div> |
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<div class="yui3-u-1-4"> |
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<div class="sidebar"> |
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<div id="toc" class="sidebox"> |
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<div class="hd"> |
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<h2 class="no-toc">Table of Contents</h2> |
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</div> |
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<div class="bd"> |
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<ul class="toc"> |
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<li> |
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<a href="#setting-up-the-delegate-container-and-items">Setting up the Delegate container and items</a> |
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</li> |
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<li> |
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<a href="#setting-up-the-yui-instance">Setting up the YUI Instance</a> |
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</li> |
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<li> |
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<a href="#making-the-nodes-draggable">Making the Nodes draggable</a> |
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</li> |
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<li> |
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<a href="#listening-to-some-events">Listening to some events</a> |
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</li> |
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<li> |
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<a href="#adding-a-drop-target">Adding a Drop Target</a> |
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</li> |
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<li> |
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<a href="#full-javascript-source">Full Javascript Source</a> |
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</li> |
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</ul> |
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</div> |
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</div> |
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<div class="sidebox"> |
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<div class="hd"> |
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<h2 class="no-toc">Examples</h2> |
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</div> |
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<div class="bd"> |
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<ul class="examples"> |
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<li data-description="A simple drag interaction that doesn't require a drop interaction."> |
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<a href="simple-drag.html">Simple Drag</a> |
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</li> |
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<li data-description="How to apply the Drag Plugin to a node."> |
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<a href="drag-plugin.html">Drag - Node plugin</a> |
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</li> |
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<li data-description="A simple proxy drag interaction that doesn't require a drop interaction."> |
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<a href="proxy-drag.html">Drag - Proxy</a> |
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</li> |
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<li data-description="How to constrain a draggable Node to another Node's region."> |
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<a href="constrained-drag.html">Drag - Constrained to a Region</a> |
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</li> |
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<li data-description="Using interaction groups, this example demonstrates how to tie into the Drag & Drop Utility's interesting moments to provide visual affordances for the current drag operation."> |
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<a href="groups-drag.html">Drag - Interaction Groups</a> |
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</li> |
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<li data-description="The use of the drag shim when dragging nodes over other troublesome nodes."> |
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<a href="shim-drag.html">Using the Drag Shim</a> |
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</li> |
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<li data-description="How to use the Drop Target events to code your application."> |
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<a href="drop-code.html">Using Drop Based Coding</a> |
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</li> |
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<li data-description="How you can use the DD Scroll plugin to scroll the browser window as you drag."> |
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<a href="winscroll.html">Window Scrolling</a> |
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</li> |
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<li data-description="How to use DD.Delegate to create a scalable solution which supports multiple draggable items."> |
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<a href="delegate.html">Drag Delegation</a> |
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</li> |
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<li data-description="Using DD.Delegate to support dragging multiple items and dropping them onto a Drop Target."> |
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<a href="delegate-drop.html">Drag Delegation with a Drop Target</a> |
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</li> |
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<li data-description="How to use Drag plugins with a DD Delegate based solution."> |
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<a href="delegate-plugins.html">Using Drag Plugins with Delegate</a> |
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</li> |
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<li data-description="This example shows how to make a sortable list using Custom Event Bubbling."> |
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<a href="list-drag.html">List Reorder w/Bubbling</a> |
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</li> |
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<li data-description="This example shows how to make a sortable list using Custom Event Bubbling and Node Scrolling."> |
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<a href="scroll-list.html">List Reorder w/Scrolling</a> |
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</li> |
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<li data-description="How to make an animated node a Drop target."> |
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<a href="anim-drop.html">Animated Drop Targets</a> |
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</li> |
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<li data-description="Example Photo Browser application."> |
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<a href="photo-browser.html">Photo Browser</a> |
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</li> |
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<li data-description="Portal style example using Drag & Drop Event Bubbling and Animation."> |
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<a href="portal-drag.html">Portal Style Example</a> |
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</li> |
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</ul> |
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</div> |
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</div> |
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<div class="sidebox"> |
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<div class="hd"> |
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<h2 class="no-toc">Examples That Use This Component</h2> |
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</div> |
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<div class="bd"> |
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<ul class="examples"> |
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<li data-description="Working with multiple YUI instances."> |
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<a href="../yui/yui-multi.html">Multiple Instances</a> |
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</li> |
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<li data-description="Use StyleSheet to adjust the CSS rules applying a page theme from user input"> |
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<a href="../stylesheet/stylesheet-theme.html">Adjusting a Page Theme on the Fly</a> |
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</li> |
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</ul> |
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</div> |
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</div> |
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</div> |
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</div> |
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</div> |
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</div> |
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<script src="../assets/vendor/prettify/prettify-min.js"></script> |
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<script>prettyPrint();</script> |
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<script> |
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YUI.Env.Tests = { |
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examples: [], |
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project: '../assets', |
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assets: '../assets/dd', |
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name: 'delegate-drop', |
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title: 'Drag Delegation with a Drop Target', |
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newWindow: '', |
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auto: false |
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}; |
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YUI.Env.Tests.examples.push('simple-drag'); |
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YUI.Env.Tests.examples.push('drag-plugin'); |
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YUI.Env.Tests.examples.push('proxy-drag'); |
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YUI.Env.Tests.examples.push('constrained-drag'); |
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YUI.Env.Tests.examples.push('groups-drag'); |
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YUI.Env.Tests.examples.push('shim-drag'); |
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YUI.Env.Tests.examples.push('drop-code'); |
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YUI.Env.Tests.examples.push('winscroll'); |
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YUI.Env.Tests.examples.push('delegate'); |
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YUI.Env.Tests.examples.push('delegate-drop'); |
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YUI.Env.Tests.examples.push('delegate-plugins'); |
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YUI.Env.Tests.examples.push('list-drag'); |
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YUI.Env.Tests.examples.push('scroll-list'); |
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YUI.Env.Tests.examples.push('anim-drop'); |
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YUI.Env.Tests.examples.push('photo-browser'); |
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YUI.Env.Tests.examples.push('portal-drag'); |
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YUI.Env.Tests.examples.push('yui-multi'); |
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YUI.Env.Tests.examples.push('stylesheet-theme'); |
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</script> |
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<script src="../assets/yui/test-runner.js"></script> |
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</body> |
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</html> |