When display style is changed from 'none' to other in animation-only restyle
we need to resolve descendant elements' style that were in the display:none
subtree.
Three possible ways to resolve the descendant elements' style;
1) Traversing unstyled elements in animation-only restyle
We can't simply traverse unstyled elements in the animation-only restyle
since when we decided to traverse the unstyled elements we don't know yet
the elements will be initially styled or are in display:none subtree. It
will result that the new elements are styled in animation-only restyle,
it's undesirable.
2) Creating a SequentialTask and resolve the descendants' style with
ServoStyleSet::StyleNewSubtree()
We can't resolve the descendants' styles with ServoStyleSet::StyleNewSubtree()
in SequentialTask since at the moment we are still in servo traversal (i.e.
sInServoTraversal is true). That means AutoSetInServoTraversal fails
in PrepareAndTraverseSubtree().
3) Creating a SequentialTask and set restyle subtree hint and defer descendants'
restyle in a subsequent normal traversal
Note that, when we process throttled animations flush, we don't process
normal traversal so the descendants will not be traversed until normal
restyle happens but it will not be a big problem since it's really rare
that user clicks display animation element just at the right moment when
display property changes from none to other. Also, if it will be really
a problem, we should process *only* transform animations on the compositor,
it's ideally right thing to do. Display property never runs on the
compositor.
This patch takes the third approach.
Implement ::first-line support in stylo
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Fixes Gecko bug 1324619.
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Add message suffixes to stylo error reports.
This is the Servo-side part of https://bugzilla.mozilla.org/show_bug.cgi?id=1381137. This allows us to add the "Declaration dropped" or "Skipped to next declaration" messages after relevant CSS errors that are reported.
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Implement restrictions on which properties apply to which pseudo-elements
::first-line, ::first-letter, and ::placeholder don't allow all properties to apply to them.
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Revert "Backed out changeset b10e6ba9cbdb because gecko part had to b…
…e backed out."
This reverts commit b96d96d448.
The fix on the Gecko side is trivial, and I can land it after this lands.
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Fixed scaling artefacts in paint worklets caused by zoom and hidpi
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This PR renders paint worklet canvases at the device pixel resolution, rather than the CSS pixel resolution.
It's a dependent PR, building on #17239, #17326 and #17364.
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- [X] These changes fix#17454
- [X] These changes do not require tests because we don't run reftests with zoom enabled
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Call may_have_animations() for parent element in the case where the t…
…arget is pseudo element.
In case of pseudo elements ElementHasAnimations is set on the parent element.
updating-animation-on-pseudo-element.html fails without this patch, succeeds
with this patch.
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https://bugzilla.mozilla.org/show_bug.cgi?id=1367278
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We fail bindgen layout tests on 32 bit because FontComputationData does not accurately reflect the size/alignment of the rust-side replacement.
We move it to the end so that alignment is more straightforward, and
use a NonZero enum so that the representation can be more accurately
handled on the C++ side.
MozReview-Commit-ID: 8GlSma3Wl9W
