81 lines
2.1 KiB
JavaScript
81 lines
2.1 KiB
JavaScript
define( [
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"../core",
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"../core/isAttached",
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"./var/rboxStyle",
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"./var/rnumnonpx",
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"./var/getStyles",
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"./var/rcustomProp",
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"../var/rtrimCSS",
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"./support"
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], function( jQuery, isAttached, rboxStyle, rnumnonpx, getStyles,
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rcustomProp, rtrimCSS, support ) {
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"use strict";
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function curCSS( elem, name, computed ) {
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var width, minWidth, maxWidth, ret,
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isCustomProp = rcustomProp.test( name ),
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// Support: Firefox 51+
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// Retrieving style before computed somehow
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// fixes an issue with getting wrong values
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// on detached elements
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style = elem.style;
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computed = computed || getStyles( elem );
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// getPropertyValue is needed for:
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// .css('filter') (IE 9 only, trac-12537)
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// .css('--customProperty) (gh-3144)
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if ( computed ) {
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ret = computed.getPropertyValue( name ) || computed[ name ];
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// trim whitespace for custom property (issue gh-4926)
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if ( isCustomProp ) {
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// rtrim treats U+000D CARRIAGE RETURN and U+000C FORM FEED
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// as whitespace while CSS does not, but this is not a problem
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// because CSS preprocessing replaces them with U+000A LINE FEED
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// (which *is* CSS whitespace)
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// https://www.w3.org/TR/css-syntax-3/#input-preprocessing
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ret = ret.replace( rtrimCSS, "$1" );
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}
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if ( ret === "" && !isAttached( elem ) ) {
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ret = jQuery.style( elem, name );
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}
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// A tribute to the "awesome hack by Dean Edwards"
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// Android Browser returns percentage for some values,
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// but width seems to be reliably pixels.
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// This is against the CSSOM draft spec:
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// https://drafts.csswg.org/cssom/#resolved-values
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if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
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// Remember the original values
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width = style.width;
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minWidth = style.minWidth;
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maxWidth = style.maxWidth;
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// Put in the new values to get a computed value out
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style.minWidth = style.maxWidth = style.width = ret;
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ret = computed.width;
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// Revert the changed values
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style.width = width;
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style.minWidth = minWidth;
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style.maxWidth = maxWidth;
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}
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}
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return ret !== undefined ?
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// Support: IE <=9 - 11 only
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// IE returns zIndex value as an integer.
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ret + "" :
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ret;
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}
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return curCSS;
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} );
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