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. :^)
130 lines
4.5 KiB
C++
130 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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JS_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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, m_video_tracks(realm.heap())
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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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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::VideoTrackListPrototype>(realm, "VideoTrackList"));
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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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ErrorOr<void> VideoTrackList::add_track(Badge<HTMLMediaElement>, JS::NonnullGCPtr<VideoTrack> video_track)
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{
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TRY(m_video_tracks.try_append(video_track));
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video_track->set_video_track_list({}, this);
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return {};
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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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JS::GCPtr<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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}
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