Everywhere: Hoist the Libraries folder to the top-level

Libraries/LibWeb/HTML/TextTrackList.cpp

@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/Realm.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/TextTrackListPrototype.h>
+#include <LibWeb/HTML/EventNames.h>
+#include <LibWeb/HTML/TextTrackList.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(TextTrackList);
+
+TextTrackList::TextTrackList(JS::Realm& realm)
+    : DOM::EventTarget(realm, MayInterfereWithIndexedPropertyAccess::Yes)
+{
+}
+
+TextTrackList::~TextTrackList() = default;
+
+void TextTrackList::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(TextTrackList);
+}
+
+void TextTrackList::visit_edges(JS::Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_text_tracks);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#dom-texttracklist-item
+JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> TextTrackList::internal_get_own_property(const JS::PropertyKey& property_name) const
+{
+    // To determine the value of an indexed property of a TextTrackList object for a given index index, the user
+    // agent must return the indexth text track in the list represented by the TextTrackList object.
+    if (property_name.is_number()) {
+        if (auto index = property_name.as_number(); index < m_text_tracks.size()) {
+            JS::PropertyDescriptor descriptor;
+            descriptor.value = m_text_tracks.at(index);
+
+            return descriptor;
+        }
+    }
+
+    return Base::internal_get_own_property(property_name);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#dom-texttracklist-length
+size_t TextTrackList::length() const
+{
+    return m_text_tracks.size();
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#dom-texttracklist-gettrackbyid
+JS::GCPtr<TextTrack> TextTrackList::get_track_by_id(StringView id) const
+{
+    // The getTrackById(id) method must return the first TextTrack in the TextTrackList object whose id
+    // IDL attribute would return a value equal to the value of the id argument.
+    auto it = m_text_tracks.find_if([&](auto const& text_track) {
+        return text_track->id() == id;
+    });
+
+    // When no tracks match the given argument, the method must return null.
+    if (it == m_text_tracks.end())
+        return nullptr;
+
+    return *it;
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onchange
+void TextTrackList::set_onchange(WebIDL::CallbackType* event_handler)
+{
+    set_event_handler_attribute(HTML::EventNames::change, event_handler);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onchange
+WebIDL::CallbackType* TextTrackList::onchange()
+{
+    return event_handler_attribute(HTML::EventNames::change);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onaddtrack
+void TextTrackList::set_onaddtrack(WebIDL::CallbackType* event_handler)
+{
+    set_event_handler_attribute(HTML::EventNames::addtrack, event_handler);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onaddtrack
+WebIDL::CallbackType* TextTrackList::onaddtrack()
+{
+    return event_handler_attribute(HTML::EventNames::addtrack);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onremovetrack
+void TextTrackList::set_onremovetrack(WebIDL::CallbackType* event_handler)
+{
+    set_event_handler_attribute(HTML::EventNames::removetrack, event_handler);
+}
+
+// https://html.spec.whatwg.org/multipage/media.html#handler-texttracklist-onremovetrack
+WebIDL::CallbackType* TextTrackList::onremovetrack()
+{
+    return event_handler_attribute(HTML::EventNames::removetrack);
+}
+
+}