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3d0b8cc30c
The two classes now inherit from a common base MediaTrackBase, to deduplicate the attributes that are shared between the two. The integer ID from the container is used for each track's id attribute. The kind attribute is set to "main" or "translation" according to: https://dev.w3.org/html5/html-sourcing-inband-tracks/ The label attribute is set to the human-readable name of the track, if one is present. The language attribute is set to a BCP 47 language tag, if one can be parsed successfully.
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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* Copyright (c) 2025, Gregory Bertilson <gregory@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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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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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(AudioTrack);
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AudioTrack::AudioTrack(JS::Realm& realm, GC::Ref<HTMLMediaElement> media_element, Media::Track const& track)
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: MediaTrackBase(realm, media_element, track)
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{
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}
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AudioTrack::~AudioTrack() = default;
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void AudioTrack::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(AudioTrack);
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Base::initialize(realm);
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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_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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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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media_element().set_audio_track_enabled({}, this, enabled);
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}
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}
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