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Pass null servo's computed values into ComputedKeyframeValues

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With this patch series, test_cssanimation_missing_keyframes.html can pass now.
This commit is contained in:
Hiroyuki Ikezoe 2017-07-10 17:18:24 +09:00
parent eb63511304
commit 4834162e4a
1 changed files with 39 additions and 15 deletions
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54
ports/geckolib/glue.rs
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@ -2863,32 +2863,56 @@ pub extern "C" fn Servo_GetComputedKeyframeValues(keyframes: RawGeckoKeyframeLis
let mut seen = LonghandIdSet::new();
// mServoDeclarationBlock is null in the case where we have an invalid css property.
let iter = keyframe.mPropertyValues.iter()
.filter(|&property| !property.mServoDeclarationBlock.mRawPtr.is_null());
let iter = keyframe.mPropertyValues.iter();
let mut property_index = 0;
for property in iter {
if simulate_compute_values_failure(property) {
continue;
}
let mut maybe_append_animation_value = |property: AnimatableLonghand,
value: Option<AnimationValue>| {
if seen.has_animatable_longhand_bit(&property) {
return;
}
seen.set_animatable_longhand_bit(&property);
// This is safe since we immediately write to the uninitialized values.
unsafe { animation_values.set_len((property_index + 1) as u32) };
animation_values[property_index].mProperty = (&property).into();
// We only make sure we have enough space for this variable,
// but didn't construct a default value for StyleAnimationValue,
// so we should zero it to avoid getting undefined behaviors.
animation_values[property_index].mValue.mGecko = unsafe { mem::zeroed() };
match value {
Some(v) => {
animation_values[property_index].mValue.mServo.set_arc_leaky(Arc::new(v));
},
None => {
animation_values[property_index].mValue.mServo.mRawPtr = ptr::null_mut();
},
}
property_index += 1;
};
if property.mServoDeclarationBlock.mRawPtr.is_null() {
let animatable_longhand =
AnimatableLonghand::from_nscsspropertyid(property.mProperty);
// |keyframes.mPropertyValues| should only contain animatable
// properties, but we check the result from_nscsspropertyid
// just in case.
if let Some(property) = animatable_longhand {
maybe_append_animation_value(property, None);
}
continue;
}
let declarations = unsafe { &*property.mServoDeclarationBlock.mRawPtr.clone() };
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
let guard = declarations.read_with(&guard);
for anim in guard.to_animation_value_iter(&mut context, &default_values) {
if !seen.has_animatable_longhand_bit(&anim.0) {
// This is safe since we immediately write to the uninitialized values.
unsafe { animation_values.set_len((property_index + 1) as u32) };
seen.set_animatable_longhand_bit(&anim.0);
animation_values[property_index].mProperty = (&anim.0).into();
// We only make sure we have enough space for this variable,
// but didn't construct a default value for StyleAnimationValue,
// so we should zero it to avoid getting undefined behaviors.
animation_values[property_index].mValue.mGecko = unsafe { mem::zeroed() };
animation_values[property_index].mValue.mServo.set_arc_leaky(Arc::new(anim.1));
property_index += 1;
}
maybe_append_animation_value(anim.0, Some(anim.1));
}
}
}