73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*
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* Copyright (c) 2021, Linus Groh <linusg@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/MediaQueryListWrapper.h>
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#include <LibWeb/CSS/MediaQueryList.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/EventDispatcher.h>
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#include <LibWeb/DOM/EventListener.h>
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namespace Web::CSS {
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MediaQueryList::MediaQueryList(DOM::Document& document, String media)
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: DOM::EventTarget(static_cast<Bindings::ScriptExecutionContext&>(document))
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, m_document(document)
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, m_media(move(media))
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{
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}
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MediaQueryList::~MediaQueryList()
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{
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-media
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String MediaQueryList::media() const
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{
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// TODO: Replace this with a "media query list" and serialize on demand
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return m_media;
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-matches
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bool MediaQueryList::matches() const
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{
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// TODO: Implement me :^)
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return false;
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}
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bool MediaQueryList::dispatch_event(NonnullRefPtr<DOM::Event> event)
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{
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return DOM::EventDispatcher::dispatch(*this, event);
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}
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JS::Object* MediaQueryList::create_wrapper(JS::GlobalObject& global_object)
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{
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return wrap(global_object, *this);
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}
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// https://www.w3.org/TR/cssom-view/#dom-mediaquerylist-addlistener
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void MediaQueryList::add_listener(RefPtr<DOM::EventListener> listener)
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{
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// 1. If listener is null, terminate these steps.
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if (!listener)
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return;
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// 2. Append an event listener to the associated list of event listeners with type set to change,
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// callback set to listener, and capture set to false, unless there already is an event listener
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// in that list with the same type, callback, and capture.
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// (NOTE: capture is set to false by default)
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add_event_listener(HTML::EventNames::change, listener);
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}
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// https://www.w3.org/TR/cssom-view/#dom-mediaquerylist-removelistener
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void MediaQueryList::remove_listener(RefPtr<DOM::EventListener> listener)
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{
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// 1. Remove an event listener from the associated list of event listeners, whose type is change, callback is listener, and capture is false.
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// NOTE: While the spec doesn't technically use remove_event_listener and instead manipulates the list directly, every major engine uses remove_event_listener.
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// This means if an event listener removes another event listener that comes after it, the removed event listener will not be invoked.
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remove_event_listener(HTML::EventNames::change, listener);
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}
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}
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