mirror of
https://github.com/RGBCube/serenity
synced 2025-05-23 14:55:08 +00:00
9521f71944
This is not a complete implementation of API, since we're also supposed to accept an options dictionary as the third argument. However, a lot of web content uses the boolean variant, and it's trivial to support.
88 lines
3 KiB
C++
88 lines
3 KiB
C++
/*
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* Copyright (c) 2020-2022, 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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#pragma once
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#include <AK/FlyString.h>
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#include <AK/Function.h>
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#include <AK/Noncopyable.h>
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#include <AK/Vector.h>
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#include <LibJS/Forward.h>
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#include <LibWeb/DOM/DOMEventListener.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/EventHandler.h>
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namespace Web::DOM {
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class EventTarget {
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AK_MAKE_NONCOPYABLE(EventTarget);
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AK_MAKE_NONMOVABLE(EventTarget);
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public:
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virtual ~EventTarget();
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void ref() { ref_event_target(); }
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void unref() { unref_event_target(); }
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virtual bool is_focusable() const { return false; }
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void add_event_listener(FlyString const& type, RefPtr<IDLEventListener> callback, bool use_capture = false);
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void remove_event_listener(FlyString const& type, RefPtr<IDLEventListener> callback, bool use_capture = false);
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virtual bool dispatch_event(NonnullRefPtr<Event>);
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ExceptionOr<bool> dispatch_event_binding(NonnullRefPtr<Event>);
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virtual JS::Object* create_wrapper(JS::GlobalObject&) = 0;
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virtual EventTarget* get_parent(const Event&) { return nullptr; }
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void add_an_event_listener(NonnullRefPtr<DOMEventListener>);
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void remove_an_event_listener(DOMEventListener&);
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void remove_from_event_listener_list(DOMEventListener&);
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auto& event_listener_list() { return m_event_listener_list; }
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auto const& event_listener_list() const { return m_event_listener_list; }
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Function<void(const Event&)> activation_behavior;
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// NOTE: These only exist for checkbox and radio input elements.
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Function<void()> legacy_pre_activation_behavior;
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Function<void()> legacy_cancelled_activation_behavior;
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Bindings::CallbackType* event_handler_attribute(FlyString const& name);
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void set_event_handler_attribute(FlyString const& name, Optional<Bindings::CallbackType>);
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// https://dom.spec.whatwg.org/#eventtarget-activation-behavior
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virtual void run_activation_behavior() { }
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protected:
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EventTarget();
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virtual void ref_event_target() = 0;
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virtual void unref_event_target() = 0;
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void element_event_handler_attribute_changed(FlyString const& local_name, String const& value);
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private:
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Vector<NonnullRefPtr<DOMEventListener>> m_event_listener_list;
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// https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-map
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// 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.
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HashMap<FlyString, HTML::EventHandler> m_event_handler_map;
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enum class IsAttribute {
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No,
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Yes,
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};
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Bindings::CallbackType* get_current_value_of_event_handler(FlyString const& name);
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void activate_event_handler(FlyString const& name, HTML::EventHandler& event_handler, IsAttribute is_attribute);
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void deactivate_event_handler(FlyString const& name);
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JS::ThrowCompletionOr<void> process_event_handler_for_event(FlyString const& name, Event& event);
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};
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}
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