[webkit-reviews] review requested: [Bug 83720] [Qt][WK2] Nested fixed elements scroll too fast : [Attachment 136766] Patch.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 11 15:22:09 PDT 2012

Yael <yael.aharon at nokia.com> has asked	for review:
Bug 83720: [Qt][WK2] Nested fixed elements scroll too fast

Attachment 136766: Patch.

------- Additional Comments from Yael <yael.aharon at nokia.com>
Before setting the scrollPositionDelta to a fixed layer, check if it has an
ancestor which also has fixed position. If it does, do not set
Added a flag to TextureMapperLayer indicating if it is a fixed position layer.
The flag is set in WebLayerTreeRenderer::flushLayerChanges to avoid adding it
also to GraphicsLayerTextureMapper.
If reviewers think it is better to add it to GraphicsLayerTextureMapper, I can
do that.

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