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9d2635d94b
The internal C++ function will now receive a RefPtr<EventListener> for 'EventListener?' and a NonnullRefPtr<EventListener> for 'EventListener'. Examples of this are addEventListener() and removeEventListener(), which both have nullable callback parameters.
77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibWeb/Bindings/ScriptExecutionContext.h>
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#include <LibWeb/DOM/EventListener.h>
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#include <LibWeb/DOM/EventTarget.h>
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namespace Web::DOM {
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EventTarget::EventTarget(Bindings::ScriptExecutionContext& script_execution_context)
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: m_script_execution_context(&script_execution_context)
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{
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}
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EventTarget::~EventTarget()
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{
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}
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// https://dom.spec.whatwg.org/#add-an-event-listener
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void EventTarget::add_event_listener(const FlyString& event_name, RefPtr<EventListener> listener)
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{
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if (listener.is_null())
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return;
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auto existing_listener = m_listeners.first_matching([&](auto& entry) {
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return entry.listener->type() == event_name && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
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});
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if (existing_listener.has_value())
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return;
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listener->set_type(event_name);
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m_listeners.append({ event_name, listener.release_nonnull() });
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}
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// https://dom.spec.whatwg.org/#remove-an-event-listener
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void EventTarget::remove_event_listener(const FlyString& event_name, RefPtr<EventListener> listener)
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{
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if (listener.is_null())
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return;
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m_listeners.remove_first_matching([&](auto& entry) {
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auto matches = entry.event_name == event_name && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
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if (matches)
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entry.listener->set_removed(true);
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return matches;
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});
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}
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void EventTarget::remove_from_event_listener_list(NonnullRefPtr<EventListener> listener)
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{
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m_listeners.remove_first_matching([&](auto& entry) {
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return entry.listener->type() == listener->type() && &entry.listener->function() == &listener->function() && entry.listener->capture() == listener->capture();
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});
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}
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}
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