[Webkit-unassigned] [Bug 17568] New: SVGForeignObjectElement can't react to width/height SVG DOM changes

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Feb 27 04:46:36 PST 2008


           Summary: SVGForeignObjectElement can't react to width/height SVG
                    DOM changes
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zimmermann at kde.org

In the process of creating the SVG dynamic updates testsuite, we're supposed to
add 'svgAttributeChanged' implementation to all SVG*Elements.
SVGForeignObjectElement/SVGImageElement/SVGSVGElement have a special case that
width/height attributes are mapped to CSS_PROP_WIDTH / CSS_PROP_HEIGHT using
the usual addCSSProperty() logic called from parseMappedAttribute.

As SVG DOM updates never go through the parseMappedAttribute/attributeChanged
route, but instead of svgAttributeChanged directly, we'll need a special trick
to be able to unify the updating logic for these cases.

- remove addCSSProperty calls from

The idea was to just move them into svgAttributeChanged - though that's not
going to work as StyledElement::attributeChanged uses a special logic to map
these attributes to CSS properties.
We need to duplicate a subset of this logic, I called it

It's a new helper function that's now living in SVGForeignObjectElement, and
needs to be moved down into a SVG*Element subclass, as soon as
SVGImageElement/SVGSVGElement are fixed, too.

Remember, this is _ONLY_ need to support SVG DOM updates, otherwhise the
HTML-style of calling addCSSProperty from parseMappedAttribute would be

Uploading patch soon.
Just adding

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