3 var ralpha = /alpha\([^)]*\)/,
4 ropacity = /opacity=([^)]*)/,
5 rdashAlpha = /-([a-z])/ig,
7 rnumpx = /^-?\d+(?:px)?$/i,
10 cssShow = { position: "absolute", visibility: "hidden", display: "block" },
11 cssWidth = [ "Left", "Right" ],
12 cssHeight = [ "Top", "Bottom" ],
15 // cache check for defaultView.getComputedStyle
16 getComputedStyle = document.defaultView && document.defaultView.getComputedStyle,
18 fcamelCase = function( all, letter ) {
19 return letter.toUpperCase();
22 jQuery.fn.css = function( name, value ) {
23 return jQuery.access( this, name, value, true, function( elem, name, value ) {
24 return jQuery.css( elem, name, value );
31 get: function( elem ) {
32 // We should always get a number back from opacity
33 var ret = curCSS( elem, "opacity", "opacity" );
34 return ret === "" ? "1" : ret;
39 // exclude the following css properties to add px
49 // normalize float css property
50 "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
53 css: function( elem, name, value, force, extra ) {
54 // don't set styles on text and comment nodes
55 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {
59 var ret, origName = name.replace( rdashAlpha, fcamelCase ),
60 style = elem.style || {}, hooks = jQuery.cssHooks[ origName ] || {};
62 name = jQuery.cssProps[ origName ] || origName;
64 if ( value !== undefined ) {
65 if ( typeof value === "number" && !jQuery.cssNumber[ origName ] ) {
69 if ( !("set" in hooks) || (value = hooks.set( elem, value )) !== undefined ) {
70 style[ name ] = value;
74 if ( !force && "get" in hooks && (ret = hooks.get( elem, force, extra )) !== undefined ) {
77 } else if ( !force && style[ name ] ) {
80 } else if ( curCSS ) {
81 ret = curCSS( elem, name, origName );
88 // A method for quickly swapping in/out CSS properties to get correct calculations
89 swap: function( elem, options, callback ) {
92 // Remember the old values, and insert the new ones
93 for ( var name in options ) {
94 old[ name ] = elem.style[ name ];
95 elem.style[ name ] = options[ name ];
98 callback.call( elem );
100 // Revert the old values
101 for ( name in options ) {
102 elem.style[ name ] = old[ name ];
107 jQuery.each(["height", "width"], function( i, name ) {
108 jQuery.cssHooks[ name ] = {
109 get: function( elem, force, extra ) {
112 if ( elem.offsetWidth !== 0 ) {
113 val = getWH( elem, name, extra );
116 jQuery.swap( elem, cssShow, function() {
117 val = getWH( elem, name, extra );
124 set: function( elem, value ) {
125 // ignore negative width and height values #1599
126 return Math.max( parseFloat(value), 0 ) + "px";
131 if ( !jQuery.support.opacity ) {
132 jQuery.cssHooks.opacity = {
133 get: function( elem, force ) {
134 // IE uses filters for opacity
135 return ropacity.test(elem.currentStyle.filter || "") ?
136 (parseFloat(RegExp.$1) / 100) + "" :
140 set: function( elem, value ) {
141 var style = elem.style;
143 // IE has trouble with opacity if it does not have layout
144 // Force it by setting the zoom level
147 // Set the alpha filter to set the opacity
148 var opacity = parseInt( value, 10 ) + "" === "NaN" ?
150 "alpha(opacity=" + value * 100 + ")";
152 var filter = style.filter || jQuery.css( elem, "filter" ) || "";
154 style.filter = ralpha.test(filter) ?
155 filter.replace(ralpha, opacity) :
161 if ( getComputedStyle ) {
162 curCSS = function( elem, newName, name ) {
163 var ret, defaultView, computedStyle;
165 name = name.replace( rupper, "-$1" ).toLowerCase();
167 if ( !(defaultView = elem.ownerDocument.defaultView) ) {
171 if ( (computedStyle = defaultView.getComputedStyle( elem, null )) ) {
172 ret = computedStyle.getPropertyValue( name );
178 } else if ( document.documentElement.currentStyle ) {
179 curCSS = function( elem, name ) {
180 var left, rsLeft, ret = elem.currentStyle[ name ], style = elem.style;
182 // From the awesome hack by Dean Edwards
183 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
185 // If we're not dealing with a regular pixel number
186 // but a number that has a weird ending, we need to convert it to pixels
187 if ( !rnumpx.test( ret ) && rnum.test( ret ) ) {
188 // Remember the original values
190 rsLeft = elem.runtimeStyle.left;
192 // Put in the new values to get a computed value out
193 elem.runtimeStyle.left = elem.currentStyle.left;
194 style.left = name === "fontSize" ? "1em" : (ret || 0);
195 ret = style.pixelLeft + "px";
197 // Revert the changed values
199 elem.runtimeStyle.left = rsLeft;
206 function getWH( elem, name, extra ) {
207 var which = name === "width" ? cssWidth : cssHeight,
208 val = name === "width" ? elem.offsetWidth : elem.offsetHeight;
210 if ( extra === "border" ) {
214 jQuery.each( which, function() {
216 val -= parseFloat(jQuery.css( elem, "padding" + this, undefined, true )) || 0;
219 if ( extra === "margin" ) {
220 val += parseFloat(jQuery.css( elem, "margin" + this, undefined, true )) || 0;
223 val -= parseFloat(jQuery.css( elem, "border" + this + "Width", undefined, true )) || 0;
230 if ( jQuery.expr && jQuery.expr.filters ) {
231 jQuery.expr.filters.hidden = function( elem ) {
232 var width = elem.offsetWidth, height = elem.offsetHeight,
233 skip = elem.nodeName.toLowerCase() === "tr";
235 return width === 0 && height === 0 && !skip ?
237 width > 0 && height > 0 && !skip ?
239 jQuery.css(elem, "display") === "none";
242 jQuery.expr.filters.visible = function( elem ) {
243 return !jQuery.expr.filters.hidden( elem );