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+ <title>Example: Using Drop Based Coding</title>
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+
+
+ <h1>Example: Using Drop Based Coding</h1>
+ <div class="yui3-g">
+ <div class="yui3-u-3-4">
+ <div id="main">
+ <div class="content"><div class="intro">
+<p>This example shows how to use the Drop Target events to code your application.</p>
+</div>
+
+<div class="example">
+ <style>
+ .drag {
+ height: 50px;
+ width: 50px;
+ border: 1px solid black;
+ background-color: #004C6D;
+ color: white;
+ cursor: move;
+ float: left;
+ margin: 4px;
+ z-index: 2;
+ }
+ #play {
+ border: 1px solid black;
+ height: 300px;
+ position: relative;
+ }
+ #drop {
+ position: absolute;
+ bottom: 5px;
+ right: 5px;
+ border: 1px solid black;
+ background-color: #8DD5E7;
+ height: 75px;
+ width: 65%;
+ z-index: 1;
+ }
+ #drop p {
+ margin: 1em;
+ }
+ #drop p strong {
+ font-weight: bold;
+ }
+ #drop.yui3-dd-drop-over {
+ background-color: #FFA928;
+ }
+
+
+</style>
+
+ <div id="play">
+ <div id="drag1" class="drag">Drag #1</div>
+ <div id="drag2" class="drag">Drag #2</div>
+ <div id="drag3" class="drag">Drag #3</div>
+ <div id="drag4" class="drag">Drag #4</div>
+ <div id="drag5" class="drag">Drag #5</div>
+ <div id="drop"></div>
+ </div>
+
+
+
+<script>
+YUI().use('dd-drop', 'dd-constrain', function(Y) {
+ var data = {
+ 'drag1': { color: 'white', size: 'x-small', price: '$5.00' },
+ 'drag2': { color: 'blue', size: 'small', price: '$6.00' },
+ 'drag3': { color: 'green', size: 'medium', price: '$7.00' },
+ 'drag4': { color: 'red', size: 'large', price: '$10.00' },
+ 'drag5': { color: 'purple', size: 'x-large', price: '$15.00' }
+ };
+ var drags = Y.Node.all('#play div.drag');
+ drags.each(function(v, k) {
+ var thisData = {};
+ Y.mix(thisData, data[v.get('id')]);
+ var dd = new Y.DD.Drag({
+ node: v,
+ dragMode: 'intersect',
+ data: thisData
+ }).plug(Y.Plugin.DDConstrained, {
+ constrain2node: '#play'
+ });
+ dd.on('drag:end', function(e) {
+ e.preventDefault();
+ });
+ });
+
+ var drop = new Y.DD.Drop({
+ node: '#drop'
+ });
+ drop.on('drop:hit', function(e) {
+ var drag = e.drag;
+ var data = drag.get('data');
+ var out = ['id: ' + drag.get('node').get('id')];
+ Y.each(data, function(v, k) {
+ out[out.length] = k + ': ' + v;
+ });
+ var str = '<p><strong>Dropped</strong>: ' + out.join(', ') + '</p>';
+ this.get('node').set('innerHTML', str);
+ });
+});
+
+</script>
+
+</div>
+
+<h3 id="setting-up-the-html">Setting up the HTML</h3>
+<p>First we need to create the HTML for the example.</p>
+
+<pre class="code prettyprint"><div id="play">
+ <div id="drag1" class="drag">Drag #1</div>
+ <div id="drag2" class="drag">Drag #2</div>
+ <div id="drag3" class="drag">Drag #3</div>
+ <div id="drag4" class="drag">Drag #4</div>
+ <div id="drag5" class="drag">Drag #5</div>
+ <div id="drop"></div>
+</div></pre>
+
+
+<p>Now we give the HTML some CSS to make them visible.</p>
+
+<pre class="code prettyprint">.drag {
+ height: 50px;
+ width: 50px;
+ border: 1px solid black;
+ background-color: #004C6D;
+ color: white;
+ cursor: move;
+ float: left;
+ margin: 4px;
+ z-index: 2;
+}
+#play {
+ border: 1px solid black;
+ height: 300px;
+ position: relative;
+}
+#drop {
+ position: absolute;
+ bottom: 5px;
+ right: 5px;
+ border: 1px solid black;
+ background-color: #8DD5E7;
+ height: 75px;
+ width: 65%;
+ z-index: 1;
+}
+#drop p {
+ margin: 1em;
+}
+#drop p strong {
+ font-weight: bold;
+}
+#drop.yui3-dd-drop-over {
+ background-color: #FFA928;
+}</pre>
+
+
+<h3 id="setting-up-the-yui-instance">Setting up the YUI Instance</h3>
+<p>Now we need to create our YUI instance and tell it to load the <code>dd-drop</code> and <code>dd-constrain</code> modules.</p>
+
+<pre class="code prettyprint">YUI().use('dd-drop', 'dd-constrain');</pre>
+
+
+<h3 id="making-the-nodes-draggable">Making the Nodes draggable</h3>
+<p>Now that we have a YUI instance with the <code>dd-drop</code> module, we need to instantiate the <code>Drag</code> instance on each Drag Node.</p>
+<p>In this example we are using the data config option of the drag to associate data with this Drag instance.</p>
+<p>So we have set up an object literal containing information about our drag items.</p>
+
+<pre class="code prettyprint">var data = {
+ 'drag1': { color: 'white', size: 'x-small', price: '$5.00' },
+ 'drag2': { color: 'blue', size: 'small', price: '$6.00' },
+ 'drag3': { color: 'green', size: 'medium', price: '$7.00' },
+ 'drag4': { color: 'red', size: 'large', price: '$10.00' },
+ 'drag5': { color: 'purple', size: 'x-large', price: '$15.00' }
+};</pre>
+
+
+<p>Now we walk through the nodes and create a drag instance from each of them.</p>
+
+<pre class="code prettyprint">YUI().use('dd-drop', 'dd-constrain', function(Y) {
+ //Data to attach to each drag object
+ var data = {
+ 'drag1': { color: 'white', size: 'x-small', price: '$5.00' },
+ 'drag2': { color: 'blue', size: 'small', price: '$6.00' },
+ 'drag3': { color: 'green', size: 'medium', price: '$7.00' },
+ 'drag4': { color: 'red', size: 'large', price: '$10.00' },
+ 'drag5': { color: 'purple', size: 'x-large', price: '$15.00' }
+ };
+ //Get all the divs with the class drag
+ var drags = Y.Node.all('#play div.drag');
+ //Walk through each one
+ drags.each(function(v, k) {
+ //scope a local var for the data
+ var thisData = {};
+ //Using Y.mix to break this data from the data above
+ Y.mix(thisData, data[v.get('id')]);
+
+ //Create the new Drag Instance
+ var dd = new Y.DD.Drag({
+ //Give it the node
+ node: v,
+ //Set the dragMode to intersect
+ dragMode: 'intersect',
+ //Attach the data here.
+ data: thisData
+ }).plug(Y.Plugin.DDConstrained, {
+ //Keep it inside the work area
+ constrain2node: '#play'
+ });
+ //Prevent the default end event (this moves the node back to its start position)
+ dd.on('drag:end', function(e) {
+ e.preventDefault();
+ });
+ });
+});</pre>
+
+
+<h3 id="setting-up-the-drop-target">Setting up the Drop Target</h3>
+<p>Here we set up the Drop Target and assign a listener to it.</p>
+
+<pre class="code prettyprint">var drop = new Y.DD.Drop({
+ node: '#drop'
+});
+//Listen for a drop:hit on this target
+drop.on('drop:hit', function(e) {
+ //Now we get the drag instance that triggered the drop hit
+ var drag = e.drag;
+ //get the data from it
+ var data = drag.get('data');
+
+ //Do something with the data
+ var out = ['id: ' + drag.get('node').get('id')];
+ Y.each(data, function(v, k) {
+ out[out.length] = k + ': ' + v;
+ });
+ var str = '<p><strong>Dropped</strong>: ' + out.join(', ') + '</p>';
+ this.get('node').set('innerHTML', str);
+});</pre>
+
+
+<h3 id="full-example-source">Full Example Source</h3>
+
+<pre class="code prettyprint">YUI().use('dd-drop', 'dd-constrain', function(Y) {
+ var data = {
+ 'drag1': { color: 'white', size: 'x-small', price: '$5.00' },
+ 'drag2': { color: 'blue', size: 'small', price: '$6.00' },
+ 'drag3': { color: 'green', size: 'medium', price: '$7.00' },
+ 'drag4': { color: 'red', size: 'large', price: '$10.00' },
+ 'drag5': { color: 'purple', size: 'x-large', price: '$15.00' }
+ };
+ var drags = Y.Node.all('#play div.drag');
+ drags.each(function(v, k) {
+ var thisData = {};
+ Y.mix(thisData, data[v.get('id')]);
+ var dd = new Y.DD.Drag({
+ node: v,
+ dragMode: 'intersect',
+ data: thisData
+ }).plug(Y.Plugin.DDConstrained, {
+ constrain2node: '#play'
+ });
+ dd.on('drag:end', function(e) {
+ e.preventDefault();
+ });
+ });
+
+ var drop = new Y.DD.Drop({
+ node: '#drop'
+ });
+ drop.on('drop:hit', function(e) {
+ var drag = e.drag;
+ var data = drag.get('data');
+ var out = ['id: ' + drag.get('node').get('id')];
+ Y.each(data, function(v, k) {
+ out[out.length] = k + ': ' + v;
+ });
+ var str = '<p><strong>Dropped</strong>: ' + out.join(', ') + '</p>';
+ this.get('node').set('innerHTML', str);
+ });
+});</pre>
+
+</div>
+ </div>
+ </div>
+
+ <div class="yui3-u-1-4">
+ <div class="sidebar">
+
+ <div id="toc" class="sidebox">
+ <div class="hd">
+ <h2 class="no-toc">Table of Contents</h2>
+ </div>
+
+ <div class="bd">
+ <ul class="toc">
+<li>
+<a href="#setting-up-the-html">Setting up the HTML</a>
+</li>
+<li>
+<a href="#setting-up-the-yui-instance">Setting up the YUI Instance</a>
+</li>
+<li>
+<a href="#making-the-nodes-draggable">Making the Nodes draggable</a>
+</li>
+<li>
+<a href="#setting-up-the-drop-target">Setting up the Drop Target</a>
+</li>
+<li>
+<a href="#full-example-source">Full Example Source</a>
+</li>
+</ul>
+ </div>
+ </div>
+
+
+
+ <div class="sidebox">
+ <div class="hd">
+ <h2 class="no-toc">Examples</h2>
+ </div>
+
+ <div class="bd">
+ <ul class="examples">
+
+
+ <li data-description="A simple drag interaction that doesn't require a drop interaction.">
+ <a href="simple-drag.html">Simple Drag</a>
+ </li>
+
+
+
+ <li data-description="How to apply the Drag Plugin to a node.">
+ <a href="drag-plugin.html">Drag - Node plugin</a>
+ </li>
+
+
+
+ <li data-description="A simple proxy drag interaction that doesn't require a drop interaction.">
+ <a href="proxy-drag.html">Drag - Proxy</a>
+ </li>
+
+
+
+ <li data-description="How to constrain a draggable Node to another Node's region.">
+ <a href="constrained-drag.html">Drag - Constrained to a Region</a>
+ </li>
+
+
+
+ <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.">
+ <a href="groups-drag.html">Drag - Interaction Groups</a>
+ </li>
+
+
+
+ <li data-description="The use of the drag shim when dragging nodes over other troublesome nodes.">
+ <a href="shim-drag.html">Using the Drag Shim</a>
+ </li>
+
+
+
+ <li data-description="How to use the Drop Target events to code your application.">
+ <a href="drop-code.html">Using Drop Based Coding</a>
+ </li>
+
+
+
+ <li data-description="How you can use the DD Scroll plugin to scroll the browser window as you drag.">
+ <a href="winscroll.html">Window Scrolling</a>
+ </li>
+
+
+
+ <li data-description="How to use DD.Delegate to create a scalable solution which supports multiple draggable items.">
+ <a href="delegate.html">Drag Delegation</a>
+ </li>
+
+
+
+ <li data-description="Using DD.Delegate to support dragging multiple items and dropping them onto a Drop Target.">
+ <a href="delegate-drop.html">Drag Delegation with a Drop Target</a>
+ </li>
+
+
+
+ <li data-description="How to use Drag plugins with a DD Delegate based solution.">
+ <a href="delegate-plugins.html">Using Drag Plugins with Delegate</a>
+ </li>
+
+
+
+ <li data-description="This example shows how to make a sortable list using Custom Event Bubbling.">
+ <a href="list-drag.html">List Reorder w/Bubbling</a>
+ </li>
+
+
+
+ <li data-description="This example shows how to make a sortable list using Custom Event Bubbling and Node Scrolling.">
+ <a href="scroll-list.html">List Reorder w/Scrolling</a>
+ </li>
+
+
+
+ <li data-description="How to make an animated node a Drop target.">
+ <a href="anim-drop.html">Animated Drop Targets</a>
+ </li>
+
+
+
+ <li data-description="Example Photo Browser application.">
+ <a href="photo-browser.html">Photo Browser</a>
+ </li>
+
+
+
+ <li data-description="Portal style example using Drag & Drop Event Bubbling and Animation.">
+ <a href="portal-drag.html">Portal Style Example</a>
+ </li>
+
+
+
+
+
+
+ </ul>
+ </div>
+ </div>
+
+
+
+ <div class="sidebox">
+ <div class="hd">
+ <h2 class="no-toc">Examples That Use This Component</h2>
+ </div>
+
+ <div class="bd">
+ <ul class="examples">
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ <li data-description="Working with multiple YUI instances.">
+ <a href="../yui/yui-multi.html">Multiple Instances</a>
+ </li>
+
+
+
+ <li data-description="Use StyleSheet to adjust the CSS rules applying a page theme from user input">
+ <a href="../stylesheet/stylesheet-theme.html">Adjusting a Page Theme on the Fly</a>
+ </li>
+
+
+ </ul>
+ </div>
+ </div>
+
+ </div>
+ </div>
+ </div>
+</div>
+
+<script src="../assets/vendor/prettify/prettify-min.js"></script>
+<script>prettyPrint();</script>
+
+<script>
+YUI.Env.Tests = {
+ examples: [],
+ project: '../assets',
+ assets: '../assets/dd',
+ name: 'drop-code',
+ title: 'Using Drop Based Coding',
+ newWindow: '',
+ auto: false
+};
+YUI.Env.Tests.examples.push('simple-drag');
+YUI.Env.Tests.examples.push('drag-plugin');
+YUI.Env.Tests.examples.push('proxy-drag');
+YUI.Env.Tests.examples.push('constrained-drag');
+YUI.Env.Tests.examples.push('groups-drag');
+YUI.Env.Tests.examples.push('shim-drag');
+YUI.Env.Tests.examples.push('drop-code');
+YUI.Env.Tests.examples.push('winscroll');
+YUI.Env.Tests.examples.push('delegate');
+YUI.Env.Tests.examples.push('delegate-drop');
+YUI.Env.Tests.examples.push('delegate-plugins');
+YUI.Env.Tests.examples.push('list-drag');
+YUI.Env.Tests.examples.push('scroll-list');
+YUI.Env.Tests.examples.push('anim-drop');
+YUI.Env.Tests.examples.push('photo-browser');
+YUI.Env.Tests.examples.push('portal-drag');
+YUI.Env.Tests.examples.push('yui-multi');
+YUI.Env.Tests.examples.push('stylesheet-theme');
+
+</script>
+<script src="../assets/yui/test-runner.js"></script>
+
+
+
+</body>
+</html>