bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
114 lines
3.4 KiB
C++
114 lines
3.4 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 <LibAudio/Loader.h>
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#include <LibJS/Runtime/Realm.h>
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#include <LibJS/Runtime/VM.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/Platform/AudioCodecPlugin.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(AudioTrack);
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static IDAllocator s_audio_track_id_allocator;
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AudioTrack::AudioTrack(JS::Realm& realm, JS::NonnullGCPtr<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* layout_node = m_media_element->layout_node())
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layout_node->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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}
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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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set_prototype(&Bindings::ensure_web_prototype<Bindings::AudioTrackPrototype>(realm, "AudioTrack"));
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auto id = s_audio_track_id_allocator.allocate();
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m_id = MUST(String::number(id));
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}
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void AudioTrack::play(Badge<HTMLAudioElement>)
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{
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m_audio_plugin->resume_playback();
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}
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void AudioTrack::pause(Badge<HTMLAudioElement>)
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{
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m_audio_plugin->pause_playback();
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}
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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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