mirror of
https://github.com/RGBCube/serenity
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b99cc7d050
This is a continuation of the previous two commits. As allocating a JS cell already primarily involves a realm instead of a global object, and we'll need to pass one to the allocate() function itself eventually (it's bridged via the global object right now), the create() functions need to receive a realm as well. The plan is for this to be the highest-level function that actually receives a realm and passes it around, AOs on an even higher level will use the "current realm" concept via VM::current_realm() as that's what the spec assumes; passing around realms (or global objects, for that matter) on higher AO levels is pointless and unlike for allocating individual objects, which may happen outside of regular JS execution, we don't need control over the specific realm that is being used there.
86 lines
3.3 KiB
C++
86 lines
3.3 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/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, Variant<AddEventListenerOptions, bool> const& options);
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void remove_event_listener(FlyString const& type, RefPtr<IDLEventListener> callback, Variant<EventListenerOptions, bool> const& options);
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// NOTE: These are for internal use only. They operate as though addEventListener(type, callback) was called instead of addEventListener(type, callback, options).
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void add_event_listener_without_options(FlyString const& type, RefPtr<IDLEventListener> callback);
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void remove_event_listener_without_options(FlyString const& type, RefPtr<IDLEventListener> callback);
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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(Event const&) { 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(Event const&)> activation_behavior;
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// NOTE: These only exist for checkbox and radio input elements.
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virtual void legacy_pre_activation_behavior() { }
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virtual void legacy_cancelled_activation_behavior() { }
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virtual void legacy_cancelled_activation_behavior_was_not_called() { }
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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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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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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);
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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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bool is_window_reflecting_body_element_event_handler(FlyString const& name);
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}
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