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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/dom/beforeunload_event_listener.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/event_type_names.h"
#include "third_party/blink/renderer/core/events/before_unload_event.h"
#include "third_party/blink/renderer/platform/heap/visitor.h"
namespace blink {
BeforeUnloadEventListener::BeforeUnloadEventListener(Document* document)
: doc_(document) {}
void BeforeUnloadEventListener::Invoke(ExecutionContext* execution_context,
Event* event) {
DCHECK_EQ(event->type(), event_type_names::kBeforeunload);
if (show_dialog_)
ToBeforeUnloadEvent(event)->setReturnValue(g_empty_string);
}
void BeforeUnloadEventListener::Trace(Visitor* visitor) {
visitor->Trace(doc_);
NativeEventListener::Trace(visitor);
}
} // namespace blink
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