// Copyright 2017 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 ASH_HOST_ASH_WINDOW_TREE_HOST_MIRRORING_DELEGATE_H_
#define ASH_HOST_ASH_WINDOW_TREE_HOST_MIRRORING_DELEGATE_H_

#include <stdint.h>

#include "ash/ash_export.h"
#include "base/macros.h"

namespace aura {
class WindowTreeHost;
}  // namespace aura

namespace display {
class Display;
}  // namespace display

namespace ash {

// A delegate for the unified window tree host as well as the mirroring display
// hosts.
class ASH_EXPORT AshWindowTreeHostMirroringDelegate {
 public:
  AshWindowTreeHostMirroringDelegate() = default;
  virtual ~AshWindowTreeHostMirroringDelegate() = default;

  // Returns a pointer to the mirroring display with |display_id| if found, or
  // nullptr if not found.
  virtual const display::Display* GetMirroringDisplayById(
      int64_t display_id) const = 0;

  // Sets the current window tree host that is the source of events which will
  // be forwarded by the unified mode event targeter to the unified host.
  virtual void SetCurrentEventTargeterSourceHost(
      aura::WindowTreeHost* targeter_src_host) = 0;

 private:
  DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostMirroringDelegate);
};

}  // namespace ash

#endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_MIRRORING_DELEGATE_H_