[Webkit-unassigned] [Bug 83720] [Qt][WK2] Nested fixed elements scroll too fast

Wed Apr 11 15:22:09 PDT 2012

https://bugs.webkit.org/show_bug.cgi?id=83720

Yael <yael.aharon at nokia.com> changed:

           What    |Removed                     |Added
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 Attachment #136766|                            |review?
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--- Comment #1 from Yael <yael.aharon at nokia.com>  2012-04-11 15:22:09 PST ---
Created an attachment (id=136766)
 --> (https://bugs.webkit.org/attachment.cgi?id=136766&action=review)
Patch.

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 scrollPositionDelta.
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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