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509eaca73d
The underlying media element class already parses out the audio tracks, regardless of the media type. Let's play them with videos!
119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/IDAllocator.h>
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#include <LibJS/Runtime/Realm.h>
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#include <LibJS/Runtime/VM.h>
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#include <LibMedia/Audio/Loader.h>
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#include <LibWeb/Bindings/AudioTrackPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/HTML/AudioTrack.h>
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#include <LibWeb/HTML/AudioTrackList.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/HTMLMediaElement.h>
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#include <LibWeb/Layout/Node.h>
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#include <LibWeb/Painting/Paintable.h>
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#include <LibWeb/Platform/AudioCodecPlugin.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(AudioTrack);
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static IDAllocator s_audio_track_id_allocator;
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AudioTrack::AudioTrack(JS::Realm& realm, GC::Ref<HTMLMediaElement> media_element, NonnullRefPtr<Audio::Loader> loader)
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: PlatformObject(realm)
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, m_media_element(media_element)
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, m_audio_plugin(Platform::AudioCodecPlugin::create(move(loader)).release_value_but_fixme_should_propagate_errors())
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{
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m_audio_plugin->on_playback_position_updated = [this](auto position) {
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if (auto* paintable = m_media_element->paintable())
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paintable->set_needs_display();
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auto playback_position = static_cast<double>(position.to_milliseconds()) / 1000.0;
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m_media_element->set_current_playback_position(playback_position);
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};
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m_audio_plugin->on_decoder_error = [this](String error_message) {
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m_media_element->set_decoder_error(move(error_message));
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};
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}
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AudioTrack::~AudioTrack()
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{
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auto id = m_id.to_number<int>();
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VERIFY(id.has_value());
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s_audio_track_id_allocator.deallocate(id.value());
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}
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void AudioTrack::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(AudioTrack);
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auto id = s_audio_track_id_allocator.allocate();
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m_id = String::number(id);
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}
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void AudioTrack::play()
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{
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m_audio_plugin->resume_playback();
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}
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void AudioTrack::pause()
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{
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m_audio_plugin->pause_playback();
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}
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AK::Duration AudioTrack::duration()
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{
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return m_audio_plugin->duration();
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}
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void AudioTrack::seek(double position, MediaSeekMode seek_mode)
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{
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// FIXME: Implement seeking mode.
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(void)seek_mode;
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m_audio_plugin->seek(position);
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}
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void AudioTrack::update_volume()
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{
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m_audio_plugin->set_volume(m_media_element->effective_media_volume());
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}
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void AudioTrack::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_media_element);
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visitor.visit(m_audio_track_list);
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-audiotrack-enabled
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void AudioTrack::set_enabled(bool enabled)
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{
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// On setting, it must enable the track if the new value is true, and disable it otherwise. (If the track is no
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// longer in an AudioTrackList object, then the track being enabled or disabled has no effect beyond changing the
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// value of the attribute on the AudioTrack object.)
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if (m_enabled == enabled)
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return;
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if (m_audio_track_list) {
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// Whenever an audio track in an AudioTrackList that was disabled is enabled, and whenever one that was enabled
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// is disabled, the user agent must queue a media element task given the media element to fire an event named
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// change at the AudioTrackList object.
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m_media_element->queue_a_media_element_task([this]() {
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m_audio_track_list->dispatch_event(DOM::Event::create(realm(), HTML::EventNames::change));
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});
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}
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m_enabled = enabled;
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}
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}
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