The propagation happens via LayerMetricsWrapper or WebRenderScrollDataWrapper.
MozReview-Commit-ID: GBZUnNn3zjN
--HG--
extra : rebase_source : 4c63269480154a95d5faedf1b4972f7d3373cb5a
This propagates the animation id for a scroll thumb's stacking context over to
the APZ code, and stores it in the HitTestingTreeNode.
MozReview-Commit-ID: 5O13Xko2Bph
This is preparation for future changes that will add fields to ScrollThumbData
that will be accessed via HitTestingTreeNode.
To accomplish this, this patch also exposes the entire ScrollThumbData via
LayerMetricsWrapper and WebRenderScrollDataWrapper.
MozReview-Commit-ID: 1Ed8Z80Wk1V
--HG--
extra : rebase_source : 86cce84eab0cd8bcd2998f1682137e9514bb1fb5
Also remove a vestigial declaration of the previously removed method
HitTestingTreeNode::GetScrollThumbLength().
MozReview-Commit-ID: 3BvFNeGwPXd
--HG--
extra : rebase_source : 6cc6d2f2e3ecc4dedce2b83f6b0faf819f4be0f8
This puts all the other things that APZ needs into the
WebRenderScrollData object. The main exception is the scroll clip - I'm
not totally sure how that will be handled yet, so for now we just return
no clip from WebRenderScrollDataWrapper.
MozReview-Commit-ID: 1IhGhSFiPYi
This mainly implements the GetLastChild and GetPreviousSibling functions
in the WebRenderScrollDataWrapper, and adds helper functions that are
needed to make that possible. This allows the WebRenderScrollDataWrapper
to simulate a full "LayerMetrics" tree using the information in the
underlying WebRenderScrollData object.
MozReview-Commit-ID: K82Ud2gAo8K
This adds a WebRenderScrollData class (which contains a list of
WebRenderLayerScrollData objects, among other things), and adds it to
the DPEnd/DPSyncEnd messages sent across PWebRenderBridge. These classes are
skeletons for now (more stuff will be added to them in future patches).
MozReview-Commit-ID: 9duxwlUpdu7
Botond Ballo
Kartikaya Gupta