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54f58e2662
With the GC heap conversion, the functionality of legacy platform objects was broken. This is because the generated implementation of one of them was used for all of them, removing functionality such as deletion. This re-adds all functionality, where questions such as "does the object support indexed properties?" is instead answered by virtual functions instead of by the IDL generator checking the presence of certain keywords/attributes.
125 lines
3.7 KiB
C++
125 lines
3.7 KiB
C++
/*
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* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, Andreas Kling <kling@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 <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/MediaListPrototype.h>
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#include <LibWeb/CSS/MediaList.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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WebIDL::ExceptionOr<JS::NonnullGCPtr<MediaList>> MediaList::create(JS::Realm& realm, NonnullRefPtrVector<MediaQuery>&& media)
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{
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return MUST_OR_THROW_OOM(realm.heap().allocate<MediaList>(realm, realm, move(media)));
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}
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MediaList::MediaList(JS::Realm& realm, NonnullRefPtrVector<MediaQuery>&& media)
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: Bindings::LegacyPlatformObject(realm)
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, m_media(move(media))
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{
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}
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JS::ThrowCompletionOr<void> MediaList::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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set_prototype(&Bindings::ensure_web_prototype<Bindings::MediaListPrototype>(realm, "MediaList"));
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return {};
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}
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// https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
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DeprecatedString MediaList::media_text() const
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{
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return serialize_a_media_query_list(m_media).release_value_but_fixme_should_propagate_errors().to_deprecated_string();
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}
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// https://www.w3.org/TR/cssom-1/#dom-medialist-mediatext
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void MediaList::set_media_text(DeprecatedString const& text)
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{
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m_media.clear();
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if (text.is_empty())
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return;
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m_media = parse_media_query_list({}, text);
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}
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bool MediaList::is_supported_property_index(u32 index) const
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{
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return index < length();
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}
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// https://www.w3.org/TR/cssom-1/#dom-medialist-item
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DeprecatedString MediaList::item(u32 index) const
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{
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if (!is_supported_property_index(index))
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return {};
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return m_media[index].to_string().release_value_but_fixme_should_propagate_errors().to_deprecated_string();
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}
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// https://www.w3.org/TR/cssom-1/#dom-medialist-appendmedium
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void MediaList::append_medium(DeprecatedString medium)
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{
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// 1. Let m be the result of parsing the given value.
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auto m = parse_media_query({}, medium);
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// 2. If m is null, then return.
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if (!m)
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return;
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// 3. If comparing m with any of the media queries in the collection of media queries returns true, then return.
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auto serialized = m->to_string().release_value_but_fixme_should_propagate_errors();
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for (auto& existing_medium : m_media) {
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if (existing_medium.to_string().release_value_but_fixme_should_propagate_errors() == serialized)
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return;
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}
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// 4. Append m to the collection of media queries.
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m_media.append(m.release_nonnull());
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}
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// https://www.w3.org/TR/cssom-1/#dom-medialist-deletemedium
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void MediaList::delete_medium(DeprecatedString medium)
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{
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auto m = parse_media_query({}, medium);
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if (!m)
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return;
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m_media.remove_all_matching([&](auto& existing) -> bool {
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return m->to_string().release_value_but_fixme_should_propagate_errors() == existing->to_string().release_value_but_fixme_should_propagate_errors();
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});
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// FIXME: If nothing was removed, then throw a NotFoundError exception.
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}
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bool MediaList::evaluate(HTML::Window const& window)
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{
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for (auto& media : m_media)
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media.evaluate(window);
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return matches();
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}
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bool MediaList::matches() const
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{
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if (m_media.is_empty()) {
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return true;
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}
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for (auto& media : m_media) {
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if (media.matches())
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return true;
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}
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return false;
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}
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WebIDL::ExceptionOr<JS::Value> MediaList::item_value(size_t index) const
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{
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if (index >= m_media.size())
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return JS::js_undefined();
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return JS::PrimitiveString::create(vm(), m_media[index].to_string().release_value_but_fixme_should_propagate_errors().to_deprecated_string());
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}
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}
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