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content / browser / closewatcher / close_listener_host.h [blame]
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_CLOSEWATCHER_CLOSE_LISTENER_HOST_H_
#define CONTENT_BROWSER_CLOSEWATCHER_CLOSE_LISTENER_HOST_H_
#include "content/common/content_export.h"
#include "content/public/browser/document_user_data.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/close_watcher/close_listener.mojom.h"
namespace content {
class CloseListenerManager;
class RenderFrameHost;
// CloseListenerHost is a helper class that notifies a CloseListener
// in the renderer host of a close signal (e.g., an android back button press).
class CONTENT_EXPORT CloseListenerHost
: public DocumentUserData<CloseListenerHost> {
public:
~CloseListenerHost() override;
CloseListenerHost(const CloseListenerHost&) = delete;
CloseListenerHost& operator=(const CloseListenerHost&) = delete;
void SetListener(mojo::PendingRemote<blink::mojom::CloseListener> listener);
bool IsActive();
bool SignalIfActive();
private:
explicit CloseListenerHost(RenderFrameHost* render_frame_host);
friend class DocumentUserData<CloseListenerHost>;
CloseListenerManager* GetOrCreateManager();
void OnDisconnect();
mojo::Remote<blink::mojom::CloseListener> close_listener_;
DOCUMENT_USER_DATA_KEY_DECL();
};
} // namespace content
#endif // CONTENT_BROWSER_CLOSEWATCHER_CLOSE_LISTENER_HOST_H_