This introduces a enum bitset type that encapsulates some of the
interesting properties that frames have that make it interesting for
hit-testing in the compositor. This type is designed so it can be sent
directly to webrender and gotten back in the hit-test.
MozReview-Commit-ID: GCxV7ZaoJd1
--HG--
extra : rebase_source : a9cc5ecfc7c5baeab2f6e08cd2ee2c2a7756e20c
The code in ComputeSuitableScaleForAnimation feeds its double-based
computation results into GetSuitableScale, which takes and returns
floats. Also the double-based computation that it's doing involves
calling UpdateMinMaxScale a bunch which explicitly uses the float
variant of std::min and std::max. And all of this is used from
ChooseScaleAndSetTransform which does other things like call a
"RoundToFloatPrecision" function, and casts the final values to
floats before setting the layer's prescale. So let's just use
floats all the way through.
MozReview-Commit-ID: BE3WC5hv89d
--HG--
extra : rebase_source : 987d9d69ec2a200ed68c59bae5fae1115713a94c
This code was written before the ScaleFactors() function was available on
the float-based gfx::Matrix, which I presume is why it was written to
convert the matrix to the double-based variant and store the scale as
doubles. We don't need to do that any more.
MozReview-Commit-ID: EoWLpny8g61
--HG--
extra : rebase_source : 4cac59121961bfb35359def042ac4b0200a85312
The code here feeds into gfxContext::mTransform which is float-based, so
using double-based rects and matrices here is unnecessary.
MozReview-Commit-ID: CbeMM8003DA
--HG--
extra : rebase_source : 735d5c880cca36b9e9bea6cb0c94825b6a1c4597
The core of this change is in gfxContext.*:
- change gfxContext::CurrentMatrix() and gfxContext::SetMatrix() to
return and take a Matrix respectively, instead of converting to
and from a gfxMatrix (which uses doubles). These functions therefore
will now match the native representation of the transform in gfxContext.
- add two new functions CurrentMatrixDouble() and SetMatrixDouble() that
do what the old CurrentMatrix() and SetMatrix() used to do, i.e.
convert between the float matrix and the double matrix.
The rest of the change is just updating the call sites to avoid round-
tripping between floats and doubles where possible. Call sites that are
hard to fix are migrated to the new XXXDouble functions which preserves
the existing behaviour.
MozReview-Commit-ID: 5sbBpLUus3U
As with the previous patch, instead of setting the override on the root
layer, we set the flag on the nsDisplayListBuilder before building the
display list, and the flag automatically forces all event regions
display items to use their dispatch-to-content region instead of any
other regions.
Both the WebRender and non-WebRender codepaths were setting the override
flag on their root layers and don't need to any more.
MozReview-Commit-ID: 1cz0ahqwkOm
--HG--
extra : rebase_source : 3292951aca97fd1a355c2fae5b0ab42d2064c548
The mechanics of this change is fairly straightforward - instead of setting the
override on the layer corresponding to the in-process subdocument, we just set
the flag on the display list builder; that flag is already checked when building
the layer event regions for descendant nsIFrames.
As a side-effect, we also don't need to force a layer for in-process subdocuments
just because they have document-level APZ-aware listeners. One of reasons we were
doing so before was so that we would have a layer to stash the override flags on
but now we don't need that any more.
Note that out-of-process subdocuments are not affected; for those cases
the nsSubDocumentFrame delegates BuildDisplayList to
RenderFrameParent/nsDisplayRemote, which will still set the overrides on
the RefLayer that is created.
MozReview-Commit-ID: DZWglE4e62p
--HG--
extra : rebase_source : 78494a5cbfd0dfecb5f2262e5c1b3dc5367c5d55
The code previously used GetClippedBoundsWithRespectToASR() (changed
in bug 1298218), but this violated the requirements of nsDisplayList::
ComputeVisibilityForSublist().
MozReview-Commit-ID: F9UVMvVKLAp
--HG--
extra : rebase_source : ec188650070d4e8de1b19395c3ed6f31e7d0e04f
We allow an nsDisplayMask item to satisfy the requirement even it does not
itself have a clip, as long as its children have finite bounds with respect
to the ASR.
MozReview-Commit-ID: 8zKE0bguY38
--HG--
extra : rebase_source : 74baaea2647708d1cd024f9e6afd82508e95c74a
We need to get the offset across documents boundaries, since the scrollframe
might be inside a subdocument. In such cases we were previously computing
a (incorrect) zero offset for the scrollframe, which was throwing off the
margin for the sticky items inside the scrollframe.
MozReview-Commit-ID: AWeQ9ay2cmp
--HG--
extra : rebase_source : 7dd8eda26c482cc359042d79073740524efa792a
