ladybird/Libraries/LibWeb/WebAudio/AudioParam.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

60 lines
2.1 KiB
C++

/*
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Forward.h>
#include <LibWeb/Bindings/AudioParamPrototype.h>
#include <LibWeb/Bindings/PlatformObject.h>
namespace Web::WebAudio {
// https://webaudio.github.io/web-audio-api/#AudioParam
class AudioParam final : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(AudioParam, Bindings::PlatformObject);
GC_DECLARE_ALLOCATOR(AudioParam);
public:
static GC::Ref<AudioParam> create(JS::Realm&, float default_value, float min_value, float max_value, Bindings::AutomationRate);
virtual ~AudioParam() override;
float value() const;
void set_value(float);
Bindings::AutomationRate automation_rate() const;
WebIDL::ExceptionOr<void> set_automation_rate(Bindings::AutomationRate);
float default_value() const;
float min_value() const;
float max_value() const;
WebIDL::ExceptionOr<GC::Ref<AudioParam>> set_value_at_time(float value, double start_time);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> linear_ramp_to_value_at_time(float value, double end_time);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> exponential_ramp_to_value_at_time(float value, double end_time);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> set_target_at_time(float target, double start_time, float time_constant);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> set_value_curve_at_time(Span<float> values, double start_time, double duration);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> cancel_scheduled_values(double cancel_time);
WebIDL::ExceptionOr<GC::Ref<AudioParam>> cancel_and_hold_at_time(double cancel_time);
private:
AudioParam(JS::Realm&, float default_value, float min_value, float max_value, Bindings::AutomationRate);
// https://webaudio.github.io/web-audio-api/#dom-audioparam-current-value-slot
float m_current_value {}; // [[current value]]
float m_default_value {};
float m_min_value {};
float m_max_value {};
Bindings::AutomationRate m_automation_rate {};
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
};
}