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+<!DOCTYPE html>
+<html lang="en">
+<head>
+ <meta charset="utf-8">
+ <title>Example: Handling DOM Events</title>
+ <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic">
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+ <link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css">
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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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+<div id="doc">
+ <div id="hd">
+ <h1><img src="http://yuilibrary.com/img/yui-logo.png"></h1>
+ </div>
+
+
+ <h1>Example: Handling DOM Events</h1>
+ <div class="yui3-g">
+ <div class="yui3-u-3-4">
+ <div id="main">
+ <div class="content"><div class="intro">
+ <p>This example demonstrates how to respond to DOM events from a Node instance.</p>
+ <p>Clicking one of the elements will report some event details.</p>
+</div>
+
+<div class="example">
+<style>
+#container{
+ font-size: 200%;
+ cursor: pointer;
+ padding: 0 0.5em;
+ margin-bottom: 0.3em;
+ border-bottom: solid 1px #ccc;
+ text-align: center;
+}
+
+#container em{
+ color: red;
+ font-weight: bold;
+ font-size: 130%;
+}
+
+#container strong{
+ color: green;
+ font-weight: bold;
+ font-family: arial black;
+}
+
+#container code{
+ background-color: #000;
+ color: #CEFFA2;
+ padding: 0.3em;
+ font-weight: bold;
+ font-family: Courier,monospace;
+}
+
+#container a{
+ color: #00f;
+ padding: 0.3em;
+ text-decoration: underline;
+ font-family: verdana;
+}
+
+.example .dd-color{
+ height: 1em;
+ width: 3em;
+}
+
+.example dt{
+ font-weight: normal;
+ color: #999999;
+}
+
+.example dd{
+ margin: 0 1.5em 0.3em;
+}
+
+.example dl{
+ margin: 0;
+}
+</style>
+
+<div id="container">
+ <p> <em>emphasis</em> <code>code</code> <strong>strong</strong> <a>anchor</a> <img src="../assets/node/images/birds.png" align="middle"/></p>
+</div>
+<div id="event-result">Click an element above to see its event data.</div>
+
+<script type="text/javascript">
+YUI().use('node', function(Y) {
+ var onClick = function(e) {
+ var type = e.type,
+ currentTarget = e.currentTarget, // #container
+ target = e.target; // #container or a descendant
+
+ Y.one('#event-result').setHTML('<dl>' +
+ '<dt>Event Type: </dt>' +
+ '<dd>' + e.type + '</dd>' +
+ '<dt>Target Tag Name: </dt>' +
+ '<dd>' + target.get('tagName') + '</dd>' +
+ '<dt>Color of Target\'s Font: </dt>' +
+ '<div class="dd-color" style="background-color:' + target.getComputedStyle('color') + ';">' + '</div>' +
+ '<dt>CurrentTarget Tag Name & Id: </dt>' +
+ '<dd>' + currentTarget.get('tagName') + '#' + currentTarget.get('id') + '</dd>' +
+ '</dl>');
+ };
+
+ Y.one('#container').on('click', onClick);
+ Y.one('#container').on('dblclick', onClick);
+});
+</script>
+
+</div>
+
+<h2>Setting up the HTML</h2>
+<p>First we need some HTML to work with.</p>
+<pre class="code prettyprint"><div id="container">
+ <p>
+ <em>emphasis</em> <code>code</code> <strong>strong</strong> <a>anchor</a>
+ <img src="../assets/node/images/birds.png" align="middle"/>
+ </p>
+</div>
+<div id="event-result">Click an element above to see its event data.</div></pre>
+
+<h2>Creating the Event Handler</h2>
+<p>Next we'll create a handler to run when the event is fired. In our handler
+we'll update the <code>#event-result</code> node with some data available through the event.</p>
+<pre class="code prettyprint">var onClick = function(e) {
+ var type = e.type,
+ currentTarget = e.currentTarget, // #container
+ target = e.target; // #container or a descendant
+
+ Y.one('#event-result').setHTML('<dl>' +
+ '<dt>Event Type: </dt>' +
+ '<dd>' + e.type + '</dd>' +
+ '<dt>Target Tag Name: </dt>' +
+ '<dd>' + target.get('tagName') + '</dd>' +
+ '<dt>Color of Target's Font: </dt>' +
+ '<dd class="dd-color" style="background-color:' + target.getStyle('color') + ';">' + '</dd>' +
+ '<dt>CurrentTarget Tag Name & Id: </dt>' +
+ '<dd>' + currentTarget.get('tagName') + '#' + currentTarget.get('id') + '</dd>' +
+ '</dl>');
+};</pre>
+
+
+<h2>Listening for Events</h2>
+<p>We can assign our handler to the container of the objects by using the <code>Y.one</code>.
+Clicking on any object in the container will bubble the event to the container.
+We're using the 'on' method to subscribe to the click and dblclick events.</p>
+<pre class="code prettyprint">Y.one('#container').on('click', onClick);
+Y.one('#container').on('dblclick', onClick);</pre>
+
+
+<h2>Complete Example Source</h2>
+<pre class="code prettyprint"><style>
+#container{
+ font-size: 200%;
+ cursor: pointer;
+ padding: 0 0.5em;
+ margin-bottom: 0.3em;
+ border-bottom: solid 1px #ccc;
+ text-align: center;
+}
+
+#container em{
+ color: red;
+ font-weight: bold;
+ font-size: 130%;
+}
+
+#container strong{
+ color: green;
+ font-weight: bold;
+ font-family: arial black;
+}
+
+#container code{
+ background-color: #000;
+ color: #CEFFA2;
+ padding: 0.3em;
+ font-weight: bold;
+ font-family: Courier,monospace;
+}
+
+#container a{
+ color: #00f;
+ padding: 0.3em;
+ text-decoration: underline;
+ font-family: verdana;
+}
+
+.example .dd-color{
+ height: 1em;
+ width: 3em;
+}
+
+.example dt{
+ font-weight: normal;
+ color: #999999;
+}
+
+.example dd{
+ margin: 0 1.5em 0.3em;
+}
+
+.example dl{
+ margin: 0;
+}
+</style>
+
+<div id="container">
+ <p> <em>emphasis</em> <code>code</code> <strong>strong</strong> <a>anchor</a> <img src="../assets/node/images/birds.png" align="middle"/></p>
+</div>
+<div id="event-result">Click an element above to see its event data.</div>
+
+<script type="text/javascript">
+YUI().use('node', function(Y) {
+ var onClick = function(e) {
+ var type = e.type,
+ currentTarget = e.currentTarget, // #container
+ target = e.target; // #container or a descendant
+
+ Y.one('#event-result').setHTML('<dl>' +
+ '<dt>Event Type: </dt>' +
+ '<dd>' + e.type + '</dd>' +
+ '<dt>Target Tag Name: </dt>' +
+ '<dd>' + target.get('tagName') + '</dd>' +
+ '<dt>Color of Target\'s Font: </dt>' +
+ '<div class="dd-color" style="background-color:' + target.getComputedStyle('color') + ';">' + '</div>' +
+ '<dt>CurrentTarget Tag Name & Id: </dt>' +
+ '<dd>' + currentTarget.get('tagName') + '#' + currentTarget.get('id') + '</dd>' +
+ '</dl>');
+ };
+
+ Y.one('#container').on('click', onClick);
+ Y.one('#container').on('dblclick', onClick);
+});
+</script></pre>
+
+</div>
+ </div>
+ </div>
+
+ <div class="yui3-u-1-4">
+ <div class="sidebar">
+
+
+
+ <div class="sidebox">
+ <div class="hd">
+ <h2 class="no-toc">Examples</h2>
+ </div>
+
+ <div class="bd">
+ <ul class="examples">
+
+
+ <li data-description="Using selectors and property accessors with Node.">
+ <a href="properties.html">Set and Get Properties</a>
+ </li>
+
+
+
+ <li data-description="Using DOM methods with Node.">
+ <a href="dom-node.html">DOM Methods</a>
+ </li>
+
+
+
+ <li data-description="Building a simple store and shopping cart.">
+ <a href="store.html">DOM Methods - Store</a>
+ </li>
+
+
+
+ <li data-description="Listening for DOM events with Node instances.">
+ <a href="events.html">Handling DOM Events</a>
+ </li>
+
+
+
+ <li data-description="NodeList provides Node functionality for manipulating multiple nodes at once.">
+ <a href="nodelist.html">Using NodeList - Simple</a>
+ </li>
+
+
+
+ <li data-description="How to use multiple NodeList features to build a simple game.">
+ <a href="ducks.html">Using NodeList - Ducks Game</a>
+ </li>
+
+
+
+ <li data-description="Using a single event listener to handle events on multiple nodes.">
+ <a href="node-evt-delegation.html">Delegating Node Events</a>
+ </li>
+
+
+
+ <li data-description="This example demonstrates how to position an element in page coordinates.">
+ <a href="node-xy.html">Node Positioning</a>
+ </li>
+
+
+
+ <li data-description="This example demonstrates how to set styles and get style information.">
+ <a href="node-style.html">Node Styling</a>
+ </li>
+
+
+
+ <li data-description="This example demonstrates how to insert content into a Node.">
+ <a href="node-insert.html">Adding Node Content - Burger Builder</a>
+ </li>
+
+
+
+ <li data-description="This example demonstrates how to show and hide a Node.">
+ <a href="node-view.html">Showing and Hiding</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="Creating an accessible toolbar using the Focus Manager Node Plugin and Node's support for the WAI-ARIA Roles and States.">
+ <a href="../node-focusmanager/node-focusmanager-toolbar.html">Accessible Toolbar</a>
+ </li>
+
+
+
+ <li data-description="Creating an accessible menu button using the Focus Manager Node Plugin, Event's delegation support and mouseenter event, along with the Overlay widget and Node's support for the WAI-ARIA Roles and States.">
+ <a href="../node-focusmanager/node-focusmanager-button.html">Accessible Menu Button</a>
+ </li>
+
+
+
+ <li data-description="Use the Event Utility to attach simple DOM event handlers.">
+ <a href="../event/basic-example.html">Simple DOM Events</a>
+ </li>
+
+
+
+ <li data-description="Example Photo Browser application.">
+ <a href="../dd/photo-browser.html">Photo Browser</a>
+ </li>
+
+
+
+ <li data-description="Portal style example using Drag & Drop Event Bubbling and Animation.">
+ <a href="../dd/portal-drag.html">Portal Style Example</a>
+ </li>
+
+
+
+ <li data-description="Use IO to request XML data from a remote web service.">
+ <a href="../io/weather.html">Request XML data from Yahoo! Weather</a>
+ </li>
+
+
+
+ <li data-description="Use IO to make a cross-domain request to Yahoo! Pipes, returning data from disparate sources.">
+ <a href="../io/xdr.html">Request JSON using Yahoo! Pipes</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/node',
+ name: 'events',
+ title: 'Handling DOM Events',
+ newWindow: '',
+ auto: false
+};
+YUI.Env.Tests.examples.push('properties');
+YUI.Env.Tests.examples.push('dom-node');
+YUI.Env.Tests.examples.push('store');
+YUI.Env.Tests.examples.push('events');
+YUI.Env.Tests.examples.push('nodelist');
+YUI.Env.Tests.examples.push('ducks');
+YUI.Env.Tests.examples.push('node-evt-delegation');
+YUI.Env.Tests.examples.push('node-xy');
+YUI.Env.Tests.examples.push('node-style');
+YUI.Env.Tests.examples.push('node-insert');
+YUI.Env.Tests.examples.push('node-view');
+YUI.Env.Tests.examples.push('node-focusmanager-toolbar');
+YUI.Env.Tests.examples.push('node-focusmanager-button');
+YUI.Env.Tests.examples.push('basic-example');
+YUI.Env.Tests.examples.push('photo-browser');
+YUI.Env.Tests.examples.push('portal-drag');
+YUI.Env.Tests.examples.push('weather');
+YUI.Env.Tests.examples.push('xdr');
+
+</script>
+<script src="../assets/yui/test-runner.js"></script>
+
+
+
+</body>
+</html>