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LibWeb: Do not abort interpolation if the StyleValue types differ

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This can be perfectly valid, and depends on the property being animated.
For example, interpolating between the StyleValue "none" (an identifier)
and a TransformationStyleValue is perfectly defined.
This commit is contained in:
Matthew Olsson 2024-02-28 18:49:19 -07:00 • committed by Andreas Kling
parent 15942b4262
commit 892f407d75
1 changed files with 3 additions and 6 deletions
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9
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
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@ -760,6 +760,9 @@ static ErrorOr<void> cascade_custom_properties(DOM::Element& element, Optional<C
static ErrorOr<NonnullRefPtr<StyleValue const>> interpolate_value(StyleValue const& from, StyleValue const& to, float delta) static ErrorOr<NonnullRefPtr<StyleValue const>> interpolate_value(StyleValue const& from, StyleValue const& to, float delta)
{ {
if (from.type() != to.type())
return delta >= 0.5f ? to : from;
auto interpolate_raw = [delta = static_cast<double>(delta)](auto from, auto to) { auto interpolate_raw = [delta = static_cast<double>(delta)](auto from, auto to) {
return static_cast<RemoveCVReference<decltype(from)>>(static_cast<double>(from) + static_cast<double>(to - from) * delta); return static_cast<RemoveCVReference<decltype(from)>>(static_cast<double>(from) + static_cast<double>(to - from) * delta);
}; };
@ -833,12 +836,6 @@ static ErrorOr<NonnullRefPtr<StyleValue const>> interpolate_value(StyleValue con
static ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> interpolate_property(PropertyID property_id, StyleValue const& from, StyleValue const& to, float delta) static ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> interpolate_property(PropertyID property_id, StyleValue const& from, StyleValue const& to, float delta)
{ {
if (from.type() != to.type()) {
if (delta > 0.999f)
return to;
return from;
}
auto animation_type = animation_type_from_longhand_property(property_id); auto animation_type = animation_type_from_longhand_property(property_id);
switch (animation_type) { switch (animation_type) {
case AnimationType::ByComputedValue: case AnimationType::ByComputedValue: