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// Copyright 2014 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.
#ifndef SERVICES_WINDOW_MANAGER_CAPTURE_CONTROLLER_H_
#define SERVICES_WINDOW_MANAGER_CAPTURE_CONTROLLER_H_
#include "base/observer_list.h"
#include "third_party/mojo_services/src/view_manager/public/cpp/view_observer.h"
namespace window_manager {
class CaptureControllerObserver;
// Manages input capture. A view which has capture will take all input events.
class CaptureController : public mojo::ViewObserver {
public:
CaptureController();
~CaptureController() override;
void AddObserver(CaptureControllerObserver* observer);
void RemoveObserver(CaptureControllerObserver* observer);
void SetCapture(mojo::View* view);
void ReleaseCapture(mojo::View* view);
mojo::View* GetCapture();
private:
void NotifyCaptureChange(mojo::View* new_capture, mojo::View* old_capture);
// Overridden from ViewObserver:
void OnViewDestroying(mojo::View* view) override;
// The current capture view. Null if there is no capture view.
mojo::View* capture_view_;
ObserverList<CaptureControllerObserver> capture_controller_observers_;
DISALLOW_COPY_AND_ASSIGN(CaptureController);
};
void SetCaptureController(mojo::View* view,
CaptureController* capture_controller);
CaptureController* GetCaptureController(mojo::View* view);
mojo::View* GetCaptureView(mojo::View* view);
} // namespace window_manager
#endif // SERVICES_WINDOW_MANAGER_CAPTURE_CONTROLLER_H_
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