-// NOTE: we've included the "window" in window.getComputedStyle
-// because jsdom on node.js will break without it.
-if ( window.getComputedStyle ) {
- getStyles = function( elem ) {
- return window.getComputedStyle( elem, null );
- };
-
- curCSS = function( elem, name, _computed ) {
- var width, minWidth, maxWidth,
- computed = _computed || getStyles( elem ),
-
- // getPropertyValue is only needed for .css('filter') in IE9, see #12537
- ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
- style = elem.style;
-
- 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;
- }
- }
-
- return ret;
- };
-} else if ( document.documentElement.currentStyle ) {
- getStyles = function( elem ) {
- return elem.currentStyle;
- };
-
- curCSS = function( elem, name, _computed ) {
- var left, rs, rsLeft,
- computed = _computed || getStyles( elem ),
- ret = computed ? computed[ name ] : undefined,
- style = elem.style;
-
- // 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;
- }
- }
-
- return ret === "" ? "auto" : ret;
- };
-}
-
-function setPositiveNumber( elem, value, subtract ) {
- var matches = rnumsplit.exec( value );
- return matches ?
- // Guard against undefined "subtract", e.g., when used as in cssHooks
- Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
- value;
-}
-
-function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
- var i = extra === ( isBorderBox ? "border" : "content" ) ?
- // If we already have the right measurement, avoid augmentation
- 4 :
- // Otherwise initialize for horizontal or vertical properties
- name === "width" ? 1 : 0,
-
- val = 0;
-
- for ( ; i < 4; i += 2 ) {
- // both box models exclude margin, so add it if we want it
- if ( extra === "margin" ) {
- val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
- }
-
- if ( isBorderBox ) {
- // border-box includes padding, so remove it if we want content
- if ( extra === "content" ) {
- val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
- }
-
- // at this point, extra isn't border nor margin, so remove border
- if ( extra !== "margin" ) {
- val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
- }
- } else {
- // at this point, extra isn't content, so add padding
- val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
- // at this point, extra isn't content nor padding, so add border
- if ( extra !== "padding" ) {
- val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
- }
- }
- }
-
- return val;
-}
-
-function getWidthOrHeight( elem, name, extra ) {
-
- // Start with offset property, which is equivalent to the border-box value
- var valueIsBorderBox = true,
- val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
- styles = getStyles( elem ),
- isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
- // some non-html elements return undefined for offsetWidth, so check for null/undefined
- // svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
- // MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
- if ( val <= 0 || val == null ) {
- // Fall back to computed then uncomputed css if necessary
- val = curCSS( elem, name, styles );
- if ( val < 0 || val == null ) {
- val = elem.style[ name ];
- }
-
- // Computed unit is not pixels. Stop here and return.
- if ( rnumnonpx.test(val) ) {
- return val;
- }
-
- // we need the check for style in case a browser which returns unreliable values
- // for getComputedStyle silently falls back to the reliable elem.style
- valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
-
- // Normalize "", auto, and prepare for extra
- val = parseFloat( val ) || 0;
- }
-
- // use the active box-sizing model to add/subtract irrelevant styles
- return ( val +
- augmentWidthOrHeight(
- elem,
- name,
- extra || ( isBorderBox ? "border" : "content" ),
- valueIsBorderBox,
- styles
- )
- ) + "px";
-}
-
-// Try to determine the default display value of an element
-function css_defaultDisplay( nodeName ) {
- var doc = document,
- display = elemdisplay[ nodeName ];
-
- if ( !display ) {
- display = actualDisplay( nodeName, doc );
-
- // If the simple way fails, read from inside an iframe
- if ( display === "none" || !display ) {
- // Use the already-created iframe if possible
- iframe = ( iframe ||
- jQuery("<iframe frameborder='0' width='0' height='0'/>")
- .css( "cssText", "display:block !important" )
- ).appendTo( doc.documentElement );
-
- // Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
- doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
- doc.write("<!doctype html><html><body>");
- doc.close();
-
- display = actualDisplay( nodeName, doc );
- iframe.detach();
- }
-
- // Store the correct default display
- elemdisplay[ nodeName ] = display;
- }