3 var ralpha = /alpha\([^)]*\)/i,
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" ],
18 fcamelCase = function( all, letter ) {
19 return letter.toUpperCase();
22 jQuery.fn.css = function( name, value ) {
23 // Setting 'undefined' is a no-op
24 if ( arguments.length === 2 && value === undefined ) {
28 return jQuery.access( this, name, value, true, function( elem, name, value ) {
29 return value !== undefined ?
30 jQuery.style( elem, name, value ) :
31 jQuery.css( elem, name );
36 // Add in style property hooks for overriding the default
37 // behavior of getting and setting a style property
40 get: function( elem, computed ) {
42 // We should always get a number back from opacity
43 var ret = curCSS( elem, "opacity", "opacity" );
44 return ret === "" ? "1" : ret;
47 return elem.style.opacity;
53 // Exclude the following css properties to add px
62 // Add in properties whose names you wish to fix before
63 // setting or getting the value
65 // normalize float css property
66 "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
69 // Get and set the style property on a DOM Node
70 style: function( elem, name, value, extra ) {
71 // Don't set styles on text and comment nodes
72 if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
76 // Make sure that we're working with the right name
77 var ret, origName = jQuery.camelCase( name ),
78 style = elem.style, hooks = jQuery.cssHooks[ origName ];
80 name = jQuery.cssProps[ origName ] || origName;
82 // Check if we're setting a value
83 if ( value !== undefined ) {
84 // Make sure that NaN and null values aren't set. See: #7116
85 if ( typeof value === "number" && isNaN( value ) || value == null ) {
89 // If a number was passed in, add 'px' to the (except for certain CSS properties)
90 if ( typeof value === "number" && !jQuery.cssNumber[ origName ] ) {
94 // If a hook was provided, use that value, otherwise just set the specified value
95 if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value )) !== undefined ) {
96 // Wrapped to prevent IE from throwing errors when 'invalid' values are provided
99 style[ name ] = value;
104 // If a hook was provided get the non-computed value from there
105 if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
109 // Otherwise just get the value from the style object
110 return style[ name ];
114 css: function( elem, name, extra ) {
115 // Make sure that we're working with the right name
116 var ret, origName = jQuery.camelCase( name ),
117 hooks = jQuery.cssHooks[ origName ];
119 name = jQuery.cssProps[ origName ] || origName;
121 // If a hook was provided get the computed value from there
122 if ( hooks && "get" in hooks && (ret = hooks.get( elem, true, extra )) !== undefined ) {
125 // Otherwise, if a way to get the computed value exists, use that
126 } else if ( curCSS ) {
127 return curCSS( elem, name, origName );
131 // A method for quickly swapping in/out CSS properties to get correct calculations
132 swap: function( elem, options, callback ) {
135 // Remember the old values, and insert the new ones
136 for ( var name in options ) {
137 old[ name ] = elem.style[ name ];
138 elem.style[ name ] = options[ name ];
141 callback.call( elem );
143 // Revert the old values
144 for ( name in options ) {
145 elem.style[ name ] = old[ name ];
149 camelCase: function( string ) {
150 return string.replace( rdashAlpha, fcamelCase );
154 // DEPRECATED, Use jQuery.css() instead
155 jQuery.curCSS = jQuery.css;
157 jQuery.each(["height", "width"], function( i, name ) {
158 jQuery.cssHooks[ name ] = {
159 get: function( elem, computed, extra ) {
163 if ( elem.offsetWidth !== 0 ) {
164 val = getWH( elem, name, extra );
167 jQuery.swap( elem, cssShow, function() {
168 val = getWH( elem, name, extra );
173 val = curCSS( elem, name, name );
175 if ( val === "0px" && currentStyle ) {
176 val = currentStyle( elem, name, name );
180 // Should return "auto" instead of 0, use 0 for
181 // temporary backwards-compat
182 return val === "" || val === "auto" ? "0px" : val;
186 if ( val < 0 || val == null ) {
187 val = elem.style[ name ];
189 // Should return "auto" instead of 0, use 0 for
190 // temporary backwards-compat
191 return val === "" || val === "auto" ? "0px" : val;
194 return typeof val === "string" ? val : val + "px";
198 set: function( elem, value ) {
199 if ( rnumpx.test( value ) ) {
200 // ignore negative width and height values #1599
201 value = parseFloat(value);
214 if ( !jQuery.support.opacity ) {
215 jQuery.cssHooks.opacity = {
216 get: function( elem, computed ) {
217 // IE uses filters for opacity
218 return ropacity.test((computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "") ?
219 (parseFloat(RegExp.$1) / 100) + "" :
223 set: function( elem, value ) {
224 var style = elem.style;
226 // IE has trouble with opacity if it does not have layout
227 // Force it by setting the zoom level
230 // Set the alpha filter to set the opacity
231 var opacity = jQuery.isNaN(value) ?
233 "alpha(opacity=" + value * 100 + ")",
234 filter = style.filter || "";
236 style.filter = ralpha.test(filter) ?
237 filter.replace(ralpha, opacity) :
238 style.filter + ' ' + opacity;
243 if ( document.defaultView && document.defaultView.getComputedStyle ) {
244 getComputedStyle = function( elem, newName, name ) {
245 var ret, defaultView, computedStyle;
247 name = name.replace( rupper, "-$1" ).toLowerCase();
249 if ( !(defaultView = elem.ownerDocument.defaultView) ) {
253 if ( (computedStyle = defaultView.getComputedStyle( elem, null )) ) {
254 ret = computedStyle.getPropertyValue( name );
255 if ( ret === "" && !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {
256 ret = jQuery.style( elem, name );
264 if ( document.documentElement.currentStyle ) {
265 currentStyle = function( elem, name ) {
267 ret = elem.currentStyle && elem.currentStyle[ name ],
270 // From the awesome hack by Dean Edwards
271 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
273 // If we're not dealing with a regular pixel number
274 // but a number that has a weird ending, we need to convert it to pixels
275 if ( !rnumpx.test( ret ) && rnum.test( ret ) ) {
276 // Remember the original values
278 rsLeft = elem.runtimeStyle.left;
280 // Put in the new values to get a computed value out
281 elem.runtimeStyle.left = elem.currentStyle.left;
282 style.left = name === "fontSize" ? "1em" : (ret || 0);
283 ret = style.pixelLeft + "px";
285 // Revert the changed values
287 elem.runtimeStyle.left = rsLeft;
290 return ret === "" ? "auto" : ret;
294 curCSS = getComputedStyle || currentStyle;
296 function getWH( elem, name, extra ) {
297 var which = name === "width" ? cssWidth : cssHeight,
298 val = name === "width" ? elem.offsetWidth : elem.offsetHeight;
300 if ( extra === "border" ) {
304 jQuery.each( which, function() {
306 val -= parseFloat(jQuery.css( elem, "padding" + this )) || 0;
309 if ( extra === "margin" ) {
310 val += parseFloat(jQuery.css( elem, "margin" + this )) || 0;
313 val -= parseFloat(jQuery.css( elem, "border" + this + "Width" )) || 0;
320 if ( jQuery.expr && jQuery.expr.filters ) {
321 jQuery.expr.filters.hidden = function( elem ) {
322 var width = elem.offsetWidth,
323 height = elem.offsetHeight;
325 return (width === 0 && height === 0) || (!jQuery.support.reliableHiddenOffsets && (elem.style.display || jQuery.css( elem, "display" )) === "none");
328 jQuery.expr.filters.visible = function( elem ) {
329 return !jQuery.expr.filters.hidden( elem );