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LibWeb: Implement CSS transitions support for pseudo elements

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We already had all necessary things for pseudo elements support in place
except ability to save transition properties in Animatable. This commit
adds the missing part.
This commit is contained in:
Aliaksandr Kalenik 2025-05-28 22:12:13 +02:00 • committed by Alexander Kalenik
commit 3178679f0b
Notes: github-actions[bot] 2025-05-30 13:49:19 +00:00
5 changed files with 136 additions and 93 deletions
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9
Libraries/LibWeb/CSS/CSSTransition.h
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@ -11,6 +11,7 @@
#include <LibWeb/CSS/CSSStyleValue.h>
#include <LibWeb/CSS/Interpolation.h>
#include <LibWeb/CSS/PropertyID.h>
#include <LibWeb/CSS/PseudoElement.h>
#include <LibWeb/CSS/StyleValues/EasingStyleValue.h>
#include <LibWeb/CSS/Time.h>
@ -21,9 +22,9 @@ class CSSTransition : public Animations::Animation {
GC_DECLARE_ALLOCATOR(CSSTransition);
public:
static GC::Ref<CSSTransition> start_a_transition(DOM::Element&, PropertyID, size_t transition_generation,
double start_time, double end_time, NonnullRefPtr<CSSStyleValue const> start_value, NonnullRefPtr<CSSStyleValue const> end_value,
NonnullRefPtr<CSSStyleValue const> reversing_adjusted_start_value, double reversing_shortening_factor);
static GC::Ref<CSSTransition> start_a_transition(DOM::Element&, Optional<PseudoElement>, PropertyID,
size_t transition_generation, double start_time, double end_time, NonnullRefPtr<CSSStyleValue const> start_value,
NonnullRefPtr<CSSStyleValue const> end_value, NonnullRefPtr<CSSStyleValue const> reversing_adjusted_start_value, double reversing_shortening_factor);
StringView transition_property() const { return string_from_property_id(m_transition_property); }
@ -51,7 +52,7 @@ public:
void set_previous_phase(Phase phase) { m_previous_phase = phase; }
private:
CSSTransition(JS::Realm&, DOM::Element&, PropertyID, size_t transition_generation,
CSSTransition(JS::Realm&, DOM::Element&, Optional<PseudoElement>, PropertyID, size_t transition_generation,
double start_time, double end_time, NonnullRefPtr<CSSStyleValue const> start_value, NonnullRefPtr<CSSStyleValue const> end_value,
NonnullRefPtr<CSSStyleValue const> reversing_adjusted_start_value, double reversing_shortening_factor);