2010-02-09 Nikolas Zimmermann <nzimmermann@rim.com>
Reviewed by Dirk Schulze.
No scroll bars are displayed for standalone SVG image
https://bugs.webkit.org/show_bug.cgi?id=11225
Height and width defined for svg element are not honored
https://bugs.webkit.org/show_bug.cgi?id=24033
SVG file does not pan and has no scroll bars
https://bugs.webkit.org/show_bug.cgi?id=24448
Adapt to SVG 1.1 errata to change the overflow handling:
Replace "svg { overflow: hidden }" by "svg:not(:root) { overflow: hidden }" to allow standalone SVG documents to contain scrolllbars.
Agreed by SVG WG to make this the default behaviour, already implemented by Opera & FireFox (partial support).
Add new tests in svg/overflow covering all special SVG css overflow handling rules on inner/outer svg elements.
Tests: svg/overflow/overflow-on-inner-svg-element-defaults.svg
svg/overflow/overflow-on-inner-svg-element.svg
svg/overflow/overflow-on-outermost-svg-element-defaults.svg
svg/overflow/overflow-on-outermost-svg-element-ignore-attribute-1.svg
svg/overflow/overflow-on-outermost-svg-element-ignore-attribute-2.svg
svg/overflow/overflow-on-outermost-svg-element-ignore-attribute-3.svg
svg/overflow/overflow-on-outermost-svg-element-in-xhtml-auto.xhtml
svg/overflow/overflow-on-outermost-svg-element-in-xhtml-defaults.xhtml
svg/overflow/overflow-on-outermost-svg-element-in-xhtml-hidden.xhtml
svg/overflow/overflow-on-outermost-svg-element-in-xhtml-scroll.xhtml
svg/overflow/overflow-on-outermost-svg-element-in-xhtml-visible.xhtml
* css/svg.css: Change default <svg> overflow rule to only apply to inner <svg> elements.
* page/FrameView.cpp:
(WebCore::FrameView::layout): Only apply overflow rules for non-standalone SVG documents.
* rendering/RenderSVGRoot.cpp: Remove all calls to isOverflowHidden - it's always the case for the outermost SVG element, see spec + errata.
(WebCore::RenderSVGRoot::paint): Always clip to initial viewport size.
(WebCore::RenderSVGRoot::computeRectForRepaint): Ditto.
(WebCore::RenderSVGRoot::nodeAtPoint): Simplify.
* rendering/RenderSVGViewportContainer.cpp:
(WebCore::RenderSVGViewportContainer::applyViewportClip): Use isOverflowHidden() instead of a manual oveflow query and clip in float precision.
* rendering/SVGRenderSupport.cpp:
(WebCore::SVGRenderBase::isOverflowHidden): Simplify implementation, assure the function is not called anymore for RenderSVGRoot objects.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@54551 268f45cc-cd09-0410-ab3c-d52691b4dbfc
62 files changed
