In some cases we get a gecko display list that looks like this:
WrapList with asr(<A>, <B>)
Item with asr (<B>) and clipchain(<something> [A])
In this case, we would initialize the WebRenderLayerScrollData for the
nested item using a stop-at ancestor of A (because that was the leafmost
ASR from the containing WrapList) but the item itself has an ASR of B,
which is an ancestor of A. So when walking up from B we'd never hit the
stop-at ancestor, and so we'd end up duplicating metrics from the
containing WRLSD onto the nested WRLSD. This generated an assertion
failure in the APZ code.
This patch detects this scenario and skips adding metrics on the nested
WRLSD. This produces an APZ tree equivalent to what the non-WebRender
path would produce.
MozReview-Commit-ID: 8eo6pzXXKBd
--HG--
extra : rebase_source : 0581c54c4d9fa6ca08249e42b306c7155022bec7
The content of this element is always overridden and the "xul:button" display mode is unnecessary, so the binding can be removed. The styles that control color are moved to "richlistbox.css" in preparation for the removal of the "listbox" element.
MozReview-Commit-ID: 5pGVE6n34EL
--HG--
extra : rebase_source : 8c5e37736c92382486ac605cc2d30085c16b7de7
extra : source : 8be7c63ea5c620641816664d9be81e58a912f9f3
This gets set to a non-zero value when we have an inactive ContainerLayer ancestor (filter in this case).
The current code assumes we'd never call BuildLayer on an image when that happen, but we force the pseudo-active
state here because background-position is animated (all properties have a transition).
MozReview-Commit-ID: 6pL8EJTNgWy
--HG--
extra : rebase_source : 6370fc79d5f47f0b5c4bbe86c0b605b90256b653
In the case of an invalid clip-path, the browser is supposed to discard the
mask entirely. In the non-webrender codepath this would happen
implicitly because the computed MaskUsage would have no flags set, and
so no actions would be taken on the gfxContext which contained the
display items rasterized so far. In the WebRender codepath, though, we
invoke the code on a A8 drawtarget that's zero-filled, so if PaintMask
fails to rasterize anything into it, it gets treated as a "mask everything
out" mask. Instead, this patch makes it so that we detect the scenario
where the computed MaskUsage is a no-op, and ensure that we don't apply
the mask in that case.
An alternative approach considered was to initialize the A8 drawtarget to
white instead of black but in cases where there is an actual mask, the
rest of the code assumes it is zero-filled and so that doesn't work.
MozReview-Commit-ID: Hw7nCiUXVJl
--HG--
extra : rebase_source : 241d550fa0ed1b3bd088c73d9565b166acbcece8
I thought of just moving the tracking to nsImageFrame instead of
nsImageLoadingContent entirely, though that would mean I need to handle it also
in nsImageBoxFrame and nsSVGImageFrame, which was even more duplicated code.
Ideas for testing this welcome, though all our animated image test-cases are
borked (all reftests in image/test/reftest/apng are disabled, and all the ones
for gifs that have animations as well).
I'll cross-ref this bug and bug 1473651 so that we can write a test for this
once that's fixed.
Differential Revision: https://phabricator.services.mozilla.com/D1994
--HG--
extra : moz-landing-system : lando
For example, if we set a transform to rotate3d(0, 0, 1e50, 45deg), the
expected normalized rotate axis is (0, 0, 1).
However, the length is larger than the maximum of float, so the actual value is
(0/inf, 0/inf, 1e50/inf) == (0, 0, 0). Therefore, we scale the vector before
doing normalization to avoid getting a zero vector.
MozReview-Commit-ID: 5LUDWD4RuNj
--HG--
extra : rebase_source : eb82f0b3979bf6ea3cd11b643ebb30a49edc24f8
It's causing cache misses which are showing up in profiles of the displaylist
mutate test case.
To avoid checking Disconnected(), we can destroy the DisplayItemData
and unset the item's pointer to it, rather than calling Disconnect()
in the first place.
To avoid fetching the LayerManager (to compare with mRetainingManager)
we can store this value on the display item along with the
DisplayItemData.
This change ensures that if a nsDisplayItem holds a pointer to a
DisplayItemData then that DisplayItemData holds a pointer back, and
vice-versa.
MozReview-Commit-ID: AAVAs8c0CQY
--HG--
extra : rebase_source : e60c378877618592f311e690219099b1cfc4c9d4
This allows us to call emplace_back, saving us a move.
MozReview-Commit-ID: 4wRiAxl7LSN
--HG--
extra : rebase_source : 0ea07c896c2807a65ad7493a22b8e2b61e68aa01
Create an anonymous popupgroup element during the creation of a top level
chrome privileged nsCanvasFrame. Implement nsIRootBox for nsCanvasFrame to store
the popup set frame. Adjust nsIRootBox::GetRootBox to be able to find the
popupset frame in a non-xul frame layout.
MozReview-Commit-ID: HCbPgQb4uil
--HG--
extra : rebase_source : 26c06243a477a07e3df2b1136ac5f636d4363b40
This allows us to call emplace_back, saving us a move.
MozReview-Commit-ID: 4wRiAxl7LSN
--HG--
extra : rebase_source : 48a0eee8f61f568e0910476dbf672cb43827187e
