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94 lines
3.7 KiB
C++
94 lines
3.7 KiB
C++
/*
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* Copyright (c) 2024, Matthew Olsson <mattco@serenityos.org>
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* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/Animations/Animation.h>
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#include <LibWeb/CSS/Interpolation.h>
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#include <LibWeb/CSS/PropertyID.h>
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#include <LibWeb/CSS/PseudoElement.h>
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#include <LibWeb/CSS/StyleValues/EasingStyleValue.h>
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#include <LibWeb/CSS/StyleValues/StyleValue.h>
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#include <LibWeb/CSS/Time.h>
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namespace Web::CSS {
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class CSSTransition : public Animations::Animation {
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WEB_PLATFORM_OBJECT(CSSTransition, Animations::Animation);
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GC_DECLARE_ALLOCATOR(CSSTransition);
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public:
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static GC::Ref<CSSTransition> start_a_transition(DOM::AbstractElement, PropertyID,
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size_t transition_generation, double delay, double start_time, double end_time, NonnullRefPtr<StyleValue const> start_value,
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NonnullRefPtr<StyleValue const> end_value, NonnullRefPtr<StyleValue const> reversing_adjusted_start_value, double reversing_shortening_factor);
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StringView transition_property() const { return string_from_property_id(m_transition_property); }
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virtual Animations::AnimationClass animation_class() const override;
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virtual Optional<int> class_specific_composite_order(GC::Ref<Animations::Animation> other) const override;
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double transition_start_time() const { return m_start_time; }
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double transition_end_time() const { return m_end_time; }
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NonnullRefPtr<StyleValue const> transition_start_value() const { return m_start_value; }
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NonnullRefPtr<StyleValue const> transition_end_value() const { return m_end_value; }
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NonnullRefPtr<StyleValue const> reversing_adjusted_start_value() const { return m_reversing_adjusted_start_value; }
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double reversing_shortening_factor() const { return m_reversing_shortening_factor; }
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double timing_function_output_at_time(double t) const;
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// This is designed to be created from AnimationEffect::Phase.
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enum class Phase : u8 {
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Before,
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Active,
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After,
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Idle,
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Pending,
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};
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Phase previous_phase() const { return m_previous_phase; }
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void set_previous_phase(Phase phase) { m_previous_phase = phase; }
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private:
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CSSTransition(JS::Realm&, DOM::AbstractElement, PropertyID, size_t transition_generation,
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double delay, double start_time, double end_time, NonnullRefPtr<StyleValue const> start_value, NonnullRefPtr<StyleValue const> end_value,
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NonnullRefPtr<StyleValue const> reversing_adjusted_start_value, double reversing_shortening_factor);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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virtual bool is_css_transition() const override { return true; }
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PropertyID m_transition_property;
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// https://drafts.csswg.org/css-transitions-2/#transition-generation
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size_t m_transition_generation;
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// https://drafts.csswg.org/css-transitions/#transition-start-time
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double m_start_time;
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// https://drafts.csswg.org/css-transitions/#transition-end-time
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double m_end_time;
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// https://drafts.csswg.org/css-transitions/#transition-start-value
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NonnullRefPtr<CSS::StyleValue const> m_start_value;
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// https://drafts.csswg.org/css-transitions/#transition-end-value
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NonnullRefPtr<CSS::StyleValue const> m_end_value;
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// https://drafts.csswg.org/css-transitions/#transition-reversing-adjusted-start-value
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NonnullRefPtr<CSS::StyleValue const> m_reversing_adjusted_start_value;
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// https://drafts.csswg.org/css-transitions/#transition-reversing-shortening-factor
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double m_reversing_shortening_factor;
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GC::Ref<Animations::KeyframeEffect> m_keyframe_effect;
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GC::Ptr<CSS::CSSStyleDeclaration const> m_cached_declaration;
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Phase m_previous_phase { Phase::Idle };
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};
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}
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