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define([
"exports",
"../core",
"./var/rnumnonpx",
"./var/rmargin",
"../selector" // contains
], function( exports, jQuery, rnumnonpx, rmargin ) {
var getStyles, curCSS,
rposition = /^(top|right|bottom|left)$/;
if ( window.getComputedStyle ) {
getStyles = function( elem ) {
return elem.ownerDocument.defaultView.getComputedStyle( elem, null );
};
curCSS = function( elem, name, computed ) {
var width, minWidth, maxWidth, ret,
style = elem.style;
computed = computed || getStyles( elem );
// getPropertyValue is only needed for .css('filter') in IE9, see #12537
ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined;
if ( computed ) {
if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
ret = jQuery.style( elem, name );
}
// A tribute to the "awesome hack by Dean Edwards"
// Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
// Remember the original values
width = style.width;
minWidth = style.minWidth;
maxWidth = style.maxWidth;
// Put in the new values to get a computed value out
style.minWidth = style.maxWidth = style.width = ret;
ret = computed.width;
// Revert the changed values
style.width = width;
style.minWidth = minWidth;
style.maxWidth = maxWidth;
}
}
// Support: IE
// IE returns zIndex value as an integer.
return ret === undefined ?
ret :
ret + "";
};
} else if ( document.documentElement.currentStyle ) {
getStyles = function( elem ) {
return elem.currentStyle;
};
curCSS = function( elem, name, computed ) {
var left, rs, rsLeft, ret,
style = elem.style;
computed = computed || getStyles( elem );
ret = computed ? computed[ name ] : undefined;
// Avoid setting ret to empty string here
// so we don't default to auto
if ( ret == null && style && style[ name ] ) {
ret = style[ name ];
}
// From the awesome hack by Dean Edwards
// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
// If we're not dealing with a regular pixel number
// but a number that has a weird ending, we need to convert it to pixels
// but not position css attributes, as those are proportional to the parent element instead
// and we can't measure the parent instead because it might trigger a "stacking dolls" problem
if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {
// Remember the original values
left = style.left;
rs = elem.runtimeStyle;
rsLeft = rs && rs.left;
// Put in the new values to get a computed value out
if ( rsLeft ) {
rs.left = elem.currentStyle.left;
}
style.left = name === "fontSize" ? "1em" : ret;
ret = style.pixelLeft + "px";
// Revert the changed values
style.left = left;
if ( rsLeft ) {
rs.left = rsLeft;
}
}
// Support: IE
// IE returns zIndex value as an integer.
return ret === undefined ?
ret :
ret + "" || "auto";
};
}
exports.getStyles = getStyles;
exports.curCSS = curCSS;
});
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