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LibWeb: Implement the AudioTrack and AudioTrackList interfaces

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These are used to own and manage the playing of audio data.
This commit is contained in:
Timothy Flynn 2023-06-12 13:52:30 -04:00 • committed by Andreas Kling
parent a34e369252
commit c89fd6dff0
12 changed files with 455 additions and 0 deletions
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70
Userland/Libraries/LibWeb/HTML/AudioTrack.h Normal file
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/*
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Time.h>
#include <LibAudio/Forward.h>
#include <LibWeb/Bindings/PlatformObject.h>
namespace Web::HTML {
class AudioTrack final : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(AudioTrack, Bindings::PlatformObject);
public:
virtual ~AudioTrack() override;
void set_audio_track_list(Badge<AudioTrackList>, JS::GCPtr<AudioTrackList> audio_track_list) { m_audio_track_list = audio_track_list; }
void play(Badge<HTMLAudioElement>);
void pause(Badge<HTMLAudioElement>);
Duration position() const;
Duration duration() const;
String const& id() const { return m_id; }
String const& kind() const { return m_kind; }
String const& label() const { return m_label; }
String const& language() const { return m_language; }
bool enabled() const { return m_enabled; }
void set_enabled(bool enabled);
private:
AudioTrack(JS::Realm&, JS::NonnullGCPtr<HTMLMediaElement>, NonnullRefPtr<Audio::Loader>);
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
Optional<FixedArray<Audio::Sample>> get_next_samples();
void play_next_samples();
// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-id
String m_id;
// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-kind
String m_kind;
// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-label
String m_label;
// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-language
String m_language;
// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-enabled
bool m_enabled { false };
JS::NonnullGCPtr<HTMLMediaElement> m_media_element;
JS::GCPtr<AudioTrackList> m_audio_track_list;
NonnullOwnPtr<Platform::AudioCodecPlugin> m_audio_plugin;
NonnullRefPtr<Audio::Loader> m_loader;
NonnullRefPtr<Platform::Timer> m_sample_timer;
};
}