YUI Library Examples: Button Control: Glowing Button

Skinning the Button widget is done using CSS. The stylesheet used for other Button examples is a minified version of the button-core.css and button-skin.css files. When customizing the Button skin, use the raw source files as a reference.

The button-core.css file includes foundational styling that clears the default padding, margins and borders for the <button> element as wells as normalizes its display type, whereas the button-skin.css file is used to apply colors, background images, etc. Skinning can be accomplished by either overriding the styles defined in the button-skin.css file, or by creating an entirely new skin file. When overriding styles, place them in a separate file to simplify integrating with YUI updates. The follow example illustrates how to create a new style for a Button instance from scratch.

Begin by creating a new Button instance.


1	var oButton = new YAHOO.widget.Button({
2	id: "ok-button",
3	label: "OK",
4	container: "buttoncontainer" });
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Next, add style definitions for borders, background colors, and apply a transparent background to the Button's root element.


1	.yui-button {
2
3	border-width: 1px 0;
4	border-style: solid;
5	border-color: #004d89;
6	margin: auto .25em;
7
8	/*
9	Give the Button instance a transparent background image that
10	provides a glossy, glass-like look. Since the background image is
11	transparent, it can apply the glass effect the Button instance
12	regardless of its background color.
13	*/
14	background: url(../button/assets/gloss.png) repeat-x left center;
15
16	}
17
18	.ie6 {
19
20	/* Make background image transparent IE 6 using the AlphaImageLoader. */
21	background-image: none;
22	filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../button/assets/gloss.png', sizingMethod = 'scale');
23
24	}
25
26	.yui-button .first-child {
27
28	border-width: 0 1px;
29	border-style: solid;
30	border-color: #004d89;
31	margin: 0 -1px;
32
33	/*
34	Using negative margins for rounded corners won't work in IE 6 and
35	IE 7 (Quirks Mode Only), so set the "margin" property to "0" for
36	those browsers.
37	*/
38	_margin: 0;
39
40	}
41
42	.yui-button button,
43	.yui-button a {
44
45	padding: 0 10px;
46	font-size: 93%; /* 12px */
47	line-height: 2; /* ~24px */
48	line-height: 1.7; / For IE */
49	min-height: 2em; /* For Gecko */
50	min-height: auto; / For IE */
51	color: #fff;
52	border: solid 1px #599acd;
53
54	}
55
56	.yui-button#ok-button {
57
58	background-color: #004d89;
59
60	}
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.yui-button {

border-width: 1px 0;
    border-style: solid;
    border-color: #004d89;
    margin: auto .25em;

/*
        Give the Button instance a transparent background image that 
        provides a glossy, glass-like look.  Since the background image is
        transparent, it can apply the glass effect the Button instance
        regardless of its background color.
    */
    background: url(../button/assets/gloss.png) repeat-x left center;
    
}

.ie6 {

/* Make background image transparent IE 6 using the AlphaImageLoader. */
    background-image: none;
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../button/assets/gloss.png', sizingMethod = 'scale');

}

.yui-button .first-child {

border-width: 0 1px;
    border-style: solid;
    border-color: #004d89;
    margin: 0 -1px;

/*
		Using negative margins for rounded corners won't work in IE 6 and 
		IE 7 (Quirks Mode Only), so set the "margin" property to "0" for 
		those browsers.
	*/
 	_margin: 0;

}

.yui-button button,
.yui-button a {

padding: 0 10px;
    font-size: 93%;  /* 12px */
    line-height: 2;  /* ~24px */
    *line-height: 1.7; /* For IE */
    min-height: 2em; /* For Gecko */
    *min-height: auto; /* For IE */
    color: #fff;
    border: solid 1px #599acd;

}

.yui-button#ok-button {
    
    background-color: #004d89;

}

Lastly, utilize the ColorAnim utility to animate the Button instance's background color.


1	/*
2	Begin animating the Button instance's background color once it is
3	appended to its containing element.
4	*/
5
6	oButton.on("appendTo", function () {
7
8	/*
9	Apply a special CSS class to be able to target IE 6
10	specifically in the CSS.
11	*/
12
13	if (YAHOO.env.ua.ie == 6) {
14
15	oButton.addClass("ie6");
16
17	}
18
19
20	// Create a new ColorAnim instance
21
22	var oButtonAnim = new YAHOO.util.ColorAnim("ok-button", { backgroundColor: { to: "#b1ddff" } });
23
24
25	/*
26	Restart the color animation each time the target color has
27	been applied.
28	*/
29
30	oButtonAnim.onComplete.subscribe(function () {
31
32	this.attributes.backgroundColor.to = (this.attributes.backgroundColor.to == "#b1ddff") ? "#016bbd" : "#b1ddff";
33
34	this.animate();
35
36	});
37
38	oButtonAnim.animate();
39
40	});
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Configuration for This Example

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YUI Library Examples: Button Control: Glowing Button

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