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/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights
* reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "third_party/blink/renderer/core/dom/events/registered_event_listener.h"
#include "third_party/blink/renderer/core/dom/events/add_event_listener_options_resolved.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/dom/events/event_listener.h"
namespace blink {
RegisteredEventListener::RegisteredEventListener()
: use_capture_(false),
passive_(false),
once_(false),
blocked_event_warning_emitted_(false),
passive_forced_for_document_target_(false),
passive_specified_(false) {}
RegisteredEventListener::RegisteredEventListener(
EventListener* listener,
const AddEventListenerOptionsResolved* options)
: callback_(listener),
use_capture_(options->capture()),
passive_(options->passive()),
once_(options->once()),
blocked_event_warning_emitted_(false),
passive_forced_for_document_target_(
options->PassiveForcedForDocumentTarget()),
passive_specified_(options->PassiveSpecified()) {}
RegisteredEventListener::RegisteredEventListener(
const RegisteredEventListener& that) = default;
RegisteredEventListener& RegisteredEventListener::operator=(
const RegisteredEventListener& that) = default;
void RegisteredEventListener::Trace(Visitor* visitor) const {
visitor->Trace(callback_);
}
AddEventListenerOptionsResolved* RegisteredEventListener::Options() const {
auto* result = MakeGarbageCollected<AddEventListenerOptionsResolved>();
result->setCapture(use_capture_);
result->setPassive(passive_);
result->SetPassiveForcedForDocumentTarget(
passive_forced_for_document_target_);
result->setOnce(once_);
result->SetPassiveSpecified(passive_specified_);
return result;
}
void RegisteredEventListener::SetCallback(EventListener* listener) {
callback_ = listener;
}
bool RegisteredEventListener::Matches(
const EventListener* listener,
const EventListenerOptions* options) const {
// Equality is soley based on the listener and useCapture flags.
DCHECK(callback_);
DCHECK(listener);
return callback_->Matches(*listener) &&
static_cast<bool>(use_capture_) == options->capture();
}
bool RegisteredEventListener::ShouldFire(const Event& event) const {
if (event.FireOnlyCaptureListenersAtTarget()) {
DCHECK_EQ(event.eventPhase(), Event::kAtTarget);
return Capture();
}
if (event.FireOnlyNonCaptureListenersAtTarget()) {
DCHECK_EQ(event.eventPhase(), Event::kAtTarget);
return !Capture();
}
if (event.eventPhase() == Event::kCapturingPhase)
return Capture();
if (event.eventPhase() == Event::kBubblingPhase)
return !Capture();
return true;
}
bool operator==(const RegisteredEventListener& lhs,
const RegisteredEventListener& rhs) {
DCHECK(lhs.Callback());
DCHECK(rhs.Callback());
return lhs.Callback()->Matches(*rhs.Callback()) &&
lhs.Capture() == rhs.Capture();
}
} // namespace blink
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