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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
133 lines
4.5 KiB
C++
133 lines
4.5 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 <LibJS/Runtime/Realm.h>
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#include <LibJS/Runtime/VM.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/VideoTrackListPrototype.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/VideoTrackList.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(VideoTrackList);
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VideoTrackList::VideoTrackList(JS::Realm& realm)
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: DOM::EventTarget(realm, MayInterfereWithIndexedPropertyAccess::Yes)
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{
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}
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void VideoTrackList::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(VideoTrackList);
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Base::initialize(realm);
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-tracklist-item
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JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> VideoTrackList::internal_get_own_property(JS::PropertyKey const& property_name) const
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{
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// To determine the value of an indexed property for a given index index in an AudioTrackList or VideoTrackList
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// object list, the user agent must return the AudioTrack or VideoTrack object that represents the indexth track
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// in list.
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if (property_name.is_number()) {
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if (auto index = property_name.as_number(); index < m_video_tracks.size()) {
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JS::PropertyDescriptor descriptor;
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descriptor.value = m_video_tracks.at(index);
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return descriptor;
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}
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}
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return Base::internal_get_own_property(property_name);
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}
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void VideoTrackList::add_track(Badge<HTMLMediaElement>, GC::Ref<VideoTrack> video_track)
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{
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m_video_tracks.append(video_track);
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video_track->set_video_track_list({}, this);
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}
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void VideoTrackList::remove_all_tracks(Badge<HTMLMediaElement>)
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{
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m_video_tracks.clear();
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-videotracklist-gettrackbyid
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GC::Ptr<VideoTrack> VideoTrackList::get_track_by_id(StringView id) const
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{
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// The AudioTrackList getTrackById(id) and VideoTrackList getTrackById(id) methods must return the first AudioTrack
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// or VideoTrack object (respectively) in the AudioTrackList or VideoTrackList object (respectively) whose identifier
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// is equal to the value of the id argument (in the natural order of the list, as defined above).
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auto it = m_video_tracks.find_if([&](auto const& video_track) {
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return video_track->id() == id;
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});
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// When no tracks match the given argument, the methods must return null.
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if (it == m_video_tracks.end())
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return nullptr;
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return *it;
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-videotracklist-selectedindex
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i32 VideoTrackList::selected_index() const
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{
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// The VideoTrackList selectedIndex attribute must return the index of the currently selected track, if any.
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auto it = m_video_tracks.find_if([&](auto const& video_track) {
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return video_track->selected();
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});
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// If the VideoTrackList object does not currently represent any tracks, or if none of the tracks are selected,
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// it must instead return −1.
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if (it == m_video_tracks.end())
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return -1;
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return static_cast<i32>(it.index());
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onchange
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void VideoTrackList::set_onchange(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::change, event_handler);
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onchange
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WebIDL::CallbackType* VideoTrackList::onchange()
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{
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return event_handler_attribute(HTML::EventNames::change);
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onaddtrack
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void VideoTrackList::set_onaddtrack(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::addtrack, event_handler);
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onaddtrack
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WebIDL::CallbackType* VideoTrackList::onaddtrack()
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{
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return event_handler_attribute(HTML::EventNames::addtrack);
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onremovetrack
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void VideoTrackList::set_onremovetrack(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::removetrack, event_handler);
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}
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// https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onremovetrack
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WebIDL::CallbackType* VideoTrackList::onremovetrack()
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{
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return event_handler_attribute(HTML::EventNames::removetrack);
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}
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void VideoTrackList::visit_edges(JS::Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_video_tracks);
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}
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}
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