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Documented color animation. #143

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Documented color animation.
scottgonzalez May 23, 2013
b7ddd1d
demo
scottgonzalez May 23, 2013
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48 changes: 48 additions & 0 deletions pages/color-animation.md
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<script>{
"title": "Color Animation",
"excerpt": "Animate colors using .animate().",
"termSlugs": {
"category": [ "effects", "effects-core" ]
}
}</script>

jQuery UI effects core adds the ability to animate color properties using `rgb()`,
`rgba()`, hex values, or even color names such as `"aqua"`. Simply include the
jQuery UI effects core file and [`.animate()`](http://api.jquery.com/animate/)
will gain support for colors.

The following properties are supported:

* `backgroundColor`
* `borderBottomColor`
* `borderLeftColor`
* `borderRightColor`
* `borderTopColor`
* `color`
* `columnRuleColor`
* `outlineColor`
* `textDecorationColor`
* `textEmphasisColor`

Support for color animation comes from the
[jQuery Color plugin](https://github.com/jquery/jquery-color). The Color plugin
provides several functions for working with colors. For full documentation, please
see the [jQuery Color documentation](https://github.com/jquery/jquery-color#readme).

## Class Animations

While there are use cases for directly animating individual color properties, it
is often a better approach to contain the styles in a class. jQuery UI provides
a few methods which will animate the addition or removal of a CSS class,
specifically [`.addClass()`](/addClass/), [`.removeClass()`](/removeClass/),
[`.toggleClass()`](/toggleClass/), and [`.switchClass()`](/switchClass/). These
methods will automatically determine which properties need to change and apply
the appropriate animations.

## Example

```html
@partial(resources/color-animation.html)
```

<iframe src="/resources/color-animation.html" width="100%" height="200"></iframe>
34 changes: 34 additions & 0 deletions resources/color-animation.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Color Animation Demo</title>
<link rel="stylehseet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
<style>
#elem {
color: #006;
background-color: #aaa;
font-size: 25px;
padding: 1em;
text-align: center;
}
</style>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
</head>
<body>

<div id="elem">color animations</div>
<button id="toggle">animate colors</button>

<script>
$( "#toggle" ).click(function() {
$( "#elem" ).animate({
color: "green",
backgroundColor: "rgb( 20, 20, 20 )"
});
});
</script>

</body>
</html>