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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/ScriptExecutionContext.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/EventListener.h>
#include <LibWeb/DOM/EventTarget.h>
namespace Web::DOM {
EventTarget::EventTarget(Bindings::ScriptExecutionContext& script_execution_context)
: m_script_execution_context(&script_execution_context)
{
}
EventTarget::~EventTarget()
{
}
// https://dom.spec.whatwg.org/#add-an-event-listener
void EventTarget::add_event_listener(const FlyString& event_name, RefPtr<EventListener> listener)
{
if (listener.is_null())
return;
auto existing_listener = m_listeners.first_matching([&](auto& entry) {
return entry.listener->type() == event_name && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
});
if (existing_listener.has_value())
return;
listener->set_type(event_name);
m_listeners.append({ event_name, listener.release_nonnull() });
}
// https://dom.spec.whatwg.org/#remove-an-event-listener
void EventTarget::remove_event_listener(const FlyString& event_name, RefPtr<EventListener> listener)
{
if (listener.is_null())
return;
m_listeners.remove_first_matching([&](auto& entry) {
auto matches = entry.event_name == event_name && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
if (matches)
entry.listener->set_removed(true);
return matches;
});
}
void EventTarget::remove_from_event_listener_list(NonnullRefPtr<EventListener> listener)
{
m_listeners.remove_first_matching([&](auto& entry) {
return entry.listener->type() == listener->type() && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
});
}
// https://dom.spec.whatwg.org/#dom-eventtarget-dispatchevent
ExceptionOr<bool> EventTarget::dispatch_event_binding(NonnullRefPtr<Event> event)
{
if (event->dispatched())
return DOM::InvalidStateError::create("The event is already being dispatched.");
if (!event->initialized())
return DOM::InvalidStateError::create("Cannot dispatch an uninitialized event.");
event->set_is_trusted(false);
return dispatch_event(event);
}
}
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