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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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5
Userland/Libraries/LibWeb/HTML/HTMLMediaElement.cpp
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@ -17,6 +17,8 @@
#include <LibWeb/Fetch/Infrastructure/FetchController.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
#include <LibWeb/HTML/AudioTrack.h>
#include <LibWeb/HTML/AudioTrackList.h>
#include <LibWeb/HTML/CORSSettingAttribute.h>
#include <LibWeb/HTML/HTMLAudioElement.h>
#include <LibWeb/HTML/HTMLMediaElement.h>
@ -48,6 +50,7 @@ JS::ThrowCompletionOr<void> HTMLMediaElement::initialize(JS::Realm& realm)
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLMediaElementPrototype>(realm, "HTMLMediaElement"));
m_audio_tracks = TRY(realm.heap().allocate<AudioTrackList>(realm, realm));
m_video_tracks = TRY(realm.heap().allocate<VideoTrackList>(realm, realm));
m_document_observer = TRY(realm.heap().allocate<DOM::DocumentObserver>(realm, realm, document()));
@ -73,6 +76,7 @@ void HTMLMediaElement::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_error);
visitor.visit(m_audio_tracks);
visitor.visit(m_video_tracks);
visitor.visit(m_document_observer);
visitor.visit(m_source_element_selector);
@ -1122,6 +1126,7 @@ void HTMLMediaElement::forget_media_resource_specific_tracks()
// of text tracks all the media-resource-specific text tracks, then empty the media element's audioTracks attribute's AudioTrackList object, then
// empty the media element's videoTracks attribute's VideoTrackList object. No events (in particular, no removetrack events) are fired as part of
// this; the error and emptied events, fired by the algorithms that invoke this one, can be used instead.
m_audio_tracks->remove_all_tracks({});
m_video_tracks->remove_all_tracks({});
}