mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-05-06 19:22:53 +00:00
89 lines
3.4 KiB
C++
89 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/FlyString.h>
|
|
#include <AK/Noncopyable.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibJS/Forward.h>
|
|
#include <LibWeb/DOM/DOMEventListener.h>
|
|
#include <LibWeb/DOM/ExceptionOr.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/HTML/EventHandler.h>
|
|
|
|
namespace Web::DOM {
|
|
|
|
class EventTarget {
|
|
AK_MAKE_NONCOPYABLE(EventTarget);
|
|
AK_MAKE_NONMOVABLE(EventTarget);
|
|
|
|
public:
|
|
virtual ~EventTarget();
|
|
|
|
void ref() { ref_event_target(); }
|
|
void unref() { unref_event_target(); }
|
|
|
|
virtual bool is_focusable() const { return false; }
|
|
|
|
void add_event_listener(FlyString const& type, RefPtr<IDLEventListener> callback, Variant<AddEventListenerOptions, bool> const& options);
|
|
void remove_event_listener(FlyString const& type, RefPtr<IDLEventListener> callback, Variant<EventListenerOptions, bool> const& options);
|
|
|
|
// NOTE: These are for internal use only. They operate as though addEventListener(type, callback) was called instead of addEventListener(type, callback, options).
|
|
void add_event_listener_without_options(FlyString const& type, RefPtr<IDLEventListener> callback);
|
|
void remove_event_listener_without_options(FlyString const& type, RefPtr<IDLEventListener> callback);
|
|
|
|
virtual bool dispatch_event(NonnullRefPtr<Event>);
|
|
ExceptionOr<bool> dispatch_event_binding(NonnullRefPtr<Event>);
|
|
|
|
virtual JS::Object* create_wrapper(JS::GlobalObject&) = 0;
|
|
|
|
virtual EventTarget* get_parent(Event const&) { return nullptr; }
|
|
|
|
void add_an_event_listener(NonnullRefPtr<DOMEventListener>);
|
|
void remove_an_event_listener(DOMEventListener&);
|
|
void remove_from_event_listener_list(DOMEventListener&);
|
|
|
|
auto& event_listener_list() { return m_event_listener_list; }
|
|
auto const& event_listener_list() const { return m_event_listener_list; }
|
|
|
|
Function<void(Event const&)> activation_behavior;
|
|
|
|
// NOTE: These only exist for checkbox and radio input elements.
|
|
virtual void legacy_pre_activation_behavior() { }
|
|
virtual void legacy_cancelled_activation_behavior() { }
|
|
virtual void legacy_cancelled_activation_behavior_was_not_called() { }
|
|
|
|
Bindings::CallbackType* event_handler_attribute(FlyString const& name);
|
|
void set_event_handler_attribute(FlyString const& name, Optional<Bindings::CallbackType>);
|
|
|
|
protected:
|
|
EventTarget();
|
|
|
|
virtual void ref_event_target() = 0;
|
|
virtual void unref_event_target() = 0;
|
|
|
|
void element_event_handler_attribute_changed(FlyString const& local_name, String const& value);
|
|
|
|
private:
|
|
Vector<NonnullRefPtr<DOMEventListener>> m_event_listener_list;
|
|
|
|
// https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-map
|
|
// Spec Note: The order of the entries of event handler map could be arbitrary. It is not observable through any algorithms that operate on the map.
|
|
HashMap<FlyString, HTML::EventHandler> m_event_handler_map;
|
|
|
|
enum class IsAttribute {
|
|
No,
|
|
Yes,
|
|
};
|
|
|
|
Bindings::CallbackType* get_current_value_of_event_handler(FlyString const& name);
|
|
void activate_event_handler(FlyString const& name, HTML::EventHandler& event_handler, IsAttribute is_attribute);
|
|
void deactivate_event_handler(FlyString const& name);
|
|
JS::ThrowCompletionOr<void> process_event_handler_for_event(FlyString const& name, Event& event);
|
|
};
|
|
|
|
}
|