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9802995de8
This only tracks whether the relevant steps should be executed at some future (but very soon) time. This time will eventually be whenever the "update animations and send events" procedure is invoked.
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
/*
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* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.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 <LibJS/Runtime/PromiseCapability.h>
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#include <LibWeb/Bindings/AnimationPrototype.h>
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#include <LibWeb/DOM/EventTarget.h>
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namespace Web::Animations {
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// https://www.w3.org/TR/web-animations-1/#the-animation-interface
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class Animation : public DOM::EventTarget {
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WEB_PLATFORM_OBJECT(Animation, DOM::EventTarget);
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public:
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static JS::NonnullGCPtr<Animation> create(JS::Realm&, JS::GCPtr<AnimationEffect>, JS::GCPtr<AnimationTimeline>);
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Animation>> construct_impl(JS::Realm&, JS::GCPtr<AnimationEffect>, JS::GCPtr<AnimationTimeline>);
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FlyString const& id() const { return m_id; }
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void set_id(FlyString value) { m_id = move(value); }
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JS::GCPtr<AnimationEffect> effect() const { return m_effect; }
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void set_effect(JS::GCPtr<AnimationEffect>);
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JS::GCPtr<AnimationTimeline> timeline() const { return m_timeline; }
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void set_timeline(JS::GCPtr<AnimationTimeline>);
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Optional<double> const& start_time() const { return m_start_time; }
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void set_start_time(Optional<double> const&);
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Optional<double> current_time() const;
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WebIDL::ExceptionOr<void> set_current_time(Optional<double> const&);
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double playback_rate() const { return m_playback_rate; }
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WebIDL::ExceptionOr<void> set_playback_rate(double value);
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Bindings::AnimationPlayState play_state() const;
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Bindings::AnimationReplaceState replace_state() const { return m_replace_state; }
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// https://www.w3.org/TR/web-animations-1/#dom-animation-ready
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JS::NonnullGCPtr<JS::Object> ready() const { return *current_ready_promise()->promise(); }
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// https://www.w3.org/TR/web-animations-1/#dom-animation-finished
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JS::NonnullGCPtr<JS::Object> finished() const { return *current_finished_promise()->promise(); }
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protected:
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Animation(JS::Realm&);
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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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private:
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enum class TaskState {
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None,
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Pending,
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RunAsSoonAsReady,
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};
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void apply_any_pending_playback_rate();
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JS::NonnullGCPtr<WebIDL::Promise> current_ready_promise() const;
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JS::NonnullGCPtr<WebIDL::Promise> current_finished_promise() const;
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// https://www.w3.org/TR/web-animations-1/#dom-animation-id
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FlyString m_id;
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// https://www.w3.org/TR/web-animations-1/#dom-animation-effect
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JS::GCPtr<AnimationEffect> m_effect;
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// https://www.w3.org/TR/web-animations-1/#dom-animation-timeline
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JS::GCPtr<AnimationTimeline> m_timeline;
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// https://www.w3.org/TR/web-animations-1/#animation-start-time
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Optional<double> m_start_time {};
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// https://www.w3.org/TR/web-animations-1/#animation-hold-time
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Optional<double> m_hold_time {};
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// https://www.w3.org/TR/web-animations-1/#playback-rate
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double m_playback_rate { 1.0 };
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// https://www.w3.org/TR/web-animations-1/#pending-playback-rate
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Optional<double> m_pending_playback_rate {};
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// https://www.w3.org/TR/web-animations-1/#dom-animation-replacestate
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Bindings::AnimationReplaceState m_replace_state { Bindings::AnimationReplaceState::Active };
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// Note: The following promises are initialized lazily to avoid constructing them outside of an execution context
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// https://www.w3.org/TR/web-animations-1/#current-ready-promise
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mutable JS::GCPtr<WebIDL::Promise> m_current_ready_promise;
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// https://www.w3.org/TR/web-animations-1/#current-finished-promise
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mutable JS::GCPtr<WebIDL::Promise> m_current_finished_promise;
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// https://www.w3.org/TR/web-animations-1/#pending-play-task
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TaskState m_pending_play_task { TaskState::None };
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// https://www.w3.org/TR/web-animations-1/#pending-pause-task
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TaskState m_pending_pause_task { TaskState::None };
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};
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}
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