<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Example: Dial Linked With Text Input</title>
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic">
<link rel="stylesheet" href="../../build/cssgrids/cssgrids-min.css">
<link rel="stylesheet" href="../assets/css/main.css">
<link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css">
<link rel="shortcut icon" type="image/png" href="../assets/favicon.png">
<script src="../../build/yui/yui-min.js"></script>
</head>
<body>
<!--
<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>
-->
<div id="doc">
<div id="hd">
<h1><img src="http://yuilibrary.com/img/yui-logo.png"></h1>
</div>
<a href="#toc" class="jump">Jump to Table of Contents</a>
<h1>Example: Dial Linked With Text Input</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 create a <code>Dial</code> widget and link it to a text input.</p>
<p>Drag the handle to set the value. When the handle has the focus, the following keys update its value: arrow keys, page up/down, home, and end. The action of these keys can be controlled via <a href="index.html#attributes" title="YUI 3: Dial">Dial's configuration attributes</a>.</p>
<p>Typing valid values into the text input updates the dial.</p>
</div>
<div class="example yui3-skin-sam">
<style type="text/css">
.example {
text-align:center;
*text-align: left;
}
#demo {
margin:0 0 1em;
}
#myTextInput {
width:96px;
}
</style>
<div id="demo"></div>
<input id="myTextInput" value=""/>
<script>
YUI().use('dial', function(Y) {
var dial = new Y.Dial({
min:-220,
max:220,
stepsPerRevolution:100,
value: 30
});
dial.render('#demo');
// Function to update the text input value from the Dial value
function updateInput( e ){
var val = e.newVal;
if ( isNaN( val ) ) {
// Not a valid number.
return;
}
this.set( "value", val );
}
var theInput = Y.one( "#myTextInput" );
// Subscribe to the Dial's valueChange event, passing the input as the 'this'
dial.on( "valueChange", updateInput, theInput );
// Function to pass input value back to the Slider
function updateDial( e ){
dial.set( "value" , e.target.get( "value" ) - 0);
}
theInput.on( "keyup", updateDial );
// Initialize the input
theInput.set('value', dial.get('value'));
});
</script>
</div>
<h3 id="creating-the-dial-and-a-text-input">Creating the Dial and a Text Input</h3>
<p>A <code>Dial</code> can be created easily and rendered into existing markup.</p>
<h4 id="the-markup">The Markup</h4>
<p>
<strong>Note:</strong> be sure to add the <code>yui3-skin-sam</code> classname to the
page's <code><body></code> element or to a parent element of the widget in order to apply
the default CSS skin. See <a href="http://yuilibrary.com/yui/docs/tutorials/skins/">Understanding Skinning</a>.
</p>
<pre class="code prettyprint"><body class="yui3-skin-sam"> <!-- You need this skin class --></pre>
<p>This example includes an element to contain the Dial and a text input field.</p>
<pre class="code prettyprint"><div id="demo"></div>
<input id="myTextInput" value=""/></pre>
<h4 id="the-javascript">The JavaScript</h4>
<p><code>Dial</code> extends the <code>Widget</code> class, following the same pattern
as any widget constructor, accepting a configuration object to
set the initial configuration for the widget.</p>
<p>After creating and configuring the new <code>Dial</code>,
call the <code>render</code> method on your <code>Dial</code> object passing it
the selector of a container element.
This renders it in the container and makes it usable.</p>
<p>Some commonly used configuration attributes are shown below.
</p>
<!-- intentionally using dial-basic-script here -->
<pre class="code prettyprint">YUI().use('dial', function(Y) {
var dial = new Y.Dial({
min:-220,
max:220,
stepsPerRevolution:100,
value: 30
});
dial.render('#demo');
});</pre>
<h3 id="linking-the-dial-to-the-text-input">Linking the Dial to the Text Input</h3>
<p>To keep the Dial's value and a text input value in sync, we need to subscribe to events on both the text input and the Dial.</p>
<p>For sending Dial values to the input, the relevant Dial event is <code>valueChange</code>.</p>
<pre class="code prettyprint">// Function to update the text input value from the Dial value
function updateInput( e ){
var val = e.newVal;
if ( isNaN( val ) ) {
// Not a valid number.
return;
}
this.set( "value", val );
}
var theInput = Y.one( "#myTextInput" );
// Subscribe to the Dial's valueChange event, passing the input as the 'this'
dial.on( "valueChange", updateInput, theInput );</pre>
<h3 id="linking-the-text-input-to-the-dial">Linking the Text Input to the Dial</h3>
<p>To send changes from the text input back to the Dial, we'll listen to the <code>keyup</code> event on <code>theInput</code>.</p>
<pre class="code prettyprint">// Function to pass input value back to the Dial
function updateDial( e ){
dial.set( "value" , e.target.get( "value" ) - 0);
}
theInput.on( "keyup", updateDial );</pre>
<h3 id="complete-example-source">Complete Example Source</h3>
<pre class="code prettyprint"><!DOCTYPE HTML>
<html>
<script src="http://yui.yahooapis.com/3.10.3/build/yui/yui-min.js"></script>
<style>
#demo {
margin:0 0 1em;
}
#myTextInput {
width:96px;
}
</style>
<body class="yui3-skin-sam"> <!-- You need this skin class -->
<div id="demo"></div>
<input id="myTextInput" value=""/>
</body>
<script>
YUI().use('dial', function(Y) {
var dial = new Y.Dial({
min:-220,
max:220,
stepsPerRevolution:100,
value: 30
});
dial.render('#demo');
// Function to update the text input value from the Dial value
function updateInput( e ){
var val = e.newVal;
if ( isNaN( val ) ) {
// Not a valid number.
return;
}
this.set( "value", val );
}
var theInput = Y.one( "#myTextInput" );
// Subscribe to the Dial's valueChange event, passing the input as the 'this'
dial.on( "valueChange", updateInput, theInput );
// Function to pass input value back to the Slider
function updateDial( e ){
dial.set( "value" , e.target.get( "value" ) - 0);
}
theInput.on( "keyup", updateDial );
// Initialize the input
theInput.set('value', dial.get('value'));
});
</script>
</html></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="#creating-the-dial-and-a-text-input">Creating the Dial and a Text Input</a>
<ul class="toc">
<li>
<a href="#the-markup">The Markup</a>
</li>
<li>
<a href="#the-javascript">The JavaScript</a>
</li>
</ul>
</li>
<li>
<a href="#linking-the-dial-to-the-text-input">Linking the Dial to the Text Input</a>
</li>
<li>
<a href="#linking-the-text-input-to-the-dial">Linking the Text Input to the Dial</a>
</li>
<li>
<a href="#complete-example-source">Complete 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="Create a Dial from existing markup on the page - a simple use case.">
<a href="dial-basic.html">Basic Dial</a>
</li>
<li data-description="Link a Dial with a text input field.">
<a href="dial-text-input.html">Dial Linked With Text Input</a>
</li>
<li data-description="Use image backgrounds to control the visual display of a Dial.">
<a href="dial-image-background.html">Dial With Image Background</a>
</li>
<li data-description="Use images to surround a Dial instance and provide additional styling.">
<a href="dial-image-surrounding.html">Dial With a Surrounding Image</a>
</li>
<li data-description="This example employs Dial to drive an interactive UI.">
<a href="dial-interactive.html">Dial With Interactive UI</a>
</li>
<li data-description="This example shows how to use Dial to animate an image sprite.">
<a href="duck.html">Image Sprite Animation with Dial</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="Use the HSL color picker to select a new color. Then chose the color type you like best.">
<a href="../color/hsl-picker.html">HSL Color Picker</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/dial',
name: 'dial-text-input',
title: 'Dial Linked With Text Input',
newWindow: '',
auto: false
};
YUI.Env.Tests.examples.push('dial-basic');
YUI.Env.Tests.examples.push('dial-text-input');
YUI.Env.Tests.examples.push('dial-image-background');
YUI.Env.Tests.examples.push('dial-image-surrounding');
YUI.Env.Tests.examples.push('dial-interactive');
YUI.Env.Tests.examples.push('duck');
YUI.Env.Tests.examples.push('hsl-picker');
</script>
<script src="../assets/yui/test-runner.js"></script>
</body>
</html>