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Improve relative string performance in .css and some code cleanup

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This commit is contained in:
Dan Heberden 2011-04-04 16:48:24 -07:00
parent 123dd72e80
commit 44a3b5839e
2 changed files with 37 additions and 25 deletions
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19
src/css.js
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@ -7,8 +7,8 @@ var ralpha = /alpha\([^)]*\)/i,
rupper = /([A-Z]|^ms)/g,
rnumpx = /^-?\d+(?:px)?$/i,
rnum = /^-?\d/,
rrelNum = /=/,
rrelString = /[^+\-\de]+/g,
rrelNum = /^[+\-]=/,
rrelNumFilter = /[^+\-\.\de]+/g,
cssShow = { position: "absolute", visibility: "hidden", display: "block" },
cssWidth = [ "Left", "Right" ],
@ -77,26 +77,27 @@ jQuery.extend({
}
// Make sure that we're working with the right name
var ret, parsed, type, origName = jQuery.camelCase( name ),
var ret, type, origName = jQuery.camelCase( name ),
style = elem.style, hooks = jQuery.cssHooks[ origName ];
name = jQuery.cssProps[ origName ] || origName;
// Check if we're setting a value
if ( value !== undefined ) {
type = typeof value;
// Make sure that NaN and null values aren't set. See: #7116
if ( typeof value === "number" && isNaN( value ) || value == null ) {
if ( type === "number" && isNaN( value ) || value == null ) {
return;
}
// convert string to number or relative number
if ( type === "string" ) {
parsed = +value.replace( rrelString, '' );
value = rrelNum.test( value ) ? parsed + jQuery.css( elem, name ) : parsed;
// convert relative number strings (+= or -=) to relative numbers. #7345
if ( type === "string" && rrelNum.test( value ) ) {
value = +value.replace( rrelNumFilter, '' ) + parseFloat( jQuery.css( elem, name ) );
}
// If a number was passed in, add 'px' to the (except for certain CSS properties)
if ( typeof value === "number" && !jQuery.cssNumber[ origName ] ) {
if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
value += "px";
}