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Trigger animation-only restyle without normal restyle.

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In some cases, e.g. mouse event, we need to request an animation-only restyle
to force flush all throttled animations when we handle an event with
coordinates. This restyle shouldn't trigger a normal restyle, and add a
different traversal flag, TraversalRestyleBehavior::ForAnimationOnly, to check.
This commit is contained in:
Boris Chiou 2017-05-19 16:12:30 +08:00
parent fe028e045a
commit 10a1b8281d
3 changed files with 1321 additions and 1232 deletions
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1268
components/style/gecko/generated/structs_debug.rs
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1268
components/style/gecko/generated/structs_release.rs
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17
ports/geckolib/glue.rs
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@ -250,20 +250,29 @@ pub extern "C" fn Servo_TraverseSubtree(root: RawGeckoElementBorrowed,
debug!("Servo_TraverseSubtree: {:?}", element);
let traversal_flags = match (root_behavior, restyle_behavior) {
(Root::Normal, Restyle::Normal) => TraversalFlags::empty(),
(Root::UnstyledChildrenOnly, Restyle::Normal) => UNSTYLED_CHILDREN_ONLY,
(Root::Normal, Restyle::Normal) |
(Root::Normal, Restyle::ForAnimationOnly)
=> TraversalFlags::empty(),
(Root::UnstyledChildrenOnly, Restyle::Normal) |
(Root::UnstyledChildrenOnly, Restyle::ForAnimationOnly)
=> UNSTYLED_CHILDREN_ONLY,
(Root::Normal, Restyle::ForReconstruct) => FOR_RECONSTRUCT,
_ => panic!("invalid combination of TraversalRootBehavior and TraversalRestyleBehavior"),
};
if element.has_animation_only_dirty_descendants() ||
element.has_animation_restyle_hints() {
let needs_animation_only_restyle = element.has_animation_only_dirty_descendants() ||
element.has_animation_restyle_hints();
if needs_animation_only_restyle {
traverse_subtree(element,
raw_data,
traversal_flags | ANIMATION_ONLY,
unsafe { &*snapshots });
}
if restyle_behavior == Restyle::ForAnimationOnly {
return needs_animation_only_restyle;
}
traverse_subtree(element,
raw_data,
traversal_flags,