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79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
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* Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.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 <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/TextTrackCueListPrototype.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/TextTrackCueList.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(TextTrackCueList);
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TextTrackCueList::TextTrackCueList(JS::Realm& realm)
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: DOM::EventTarget(realm, MayInterfereWithIndexedPropertyAccess::Yes)
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{
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}
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TextTrackCueList::~TextTrackCueList() = default;
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void TextTrackCueList::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(TextTrackCueList);
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}
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void TextTrackCueList::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_cues);
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-texttrackcuelist-item
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JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> TextTrackCueList::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, the user agent must return the indexth text track cue in the list
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// represented by the TextTrackCueList object.
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if (property_name.is_number()) {
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if (auto index = property_name.as_number(); index < m_cues.size()) {
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JS::PropertyDescriptor descriptor;
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descriptor.value = m_cues.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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// https://html.spec.whatwg.org/multipage/media.html#dom-texttrackcuelist-length
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size_t TextTrackCueList::length() const
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{
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// The length attribute must return the number of cues in the list represented by the TextTrackCueList object.
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return m_cues.size();
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}
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// https://html.spec.whatwg.org/multipage/media.html#dom-texttrackcuelist-getcuebyid
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JS::GCPtr<TextTrackCue> TextTrackCueList::get_cue_by_id(StringView id) const
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{
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// The getCueById(id) method, when called with an argument other than the empty string, must return the first text track cue in the list
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// represented by the TextTrackCueList object whose text track cue identifier is id, if any, or null otherwise. If the argument is the
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// empty string, then the method must return null.
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if (id.is_empty())
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return nullptr;
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auto it = m_cues.find_if([&](auto const& cue) {
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return cue->id() == id;
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});
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if (it == m_cues.end())
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return nullptr;
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return *it;
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}
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}
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