text: // 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 REMOTING_HOST_IT2ME_IT2ME_CONFIRMATION_DIALOG_H_
  #define REMOTING_HOST_IT2ME_IT2ME_CONFIRMATION_DIALOG_H_
  
  #include <memory>
  #include <string>
  
  #include "base/callback_forward.h"
  #include "base/macros.h"
  
  namespace remoting {
  
  // Interface for a dialog to confirm an It2Me session with the user.
  // All methods, with the exception of the constructor, are guaranteed to be
  // called on the UI thread.
  class It2MeConfirmationDialog {
   public:
    enum class Result {
      OK,
      CANCEL
    };
  
    typedef base::OnceCallback<void(Result)> ResultCallback;
  
    virtual ~It2MeConfirmationDialog() {}
  
    // Shows the dialog. |callback| will be called with the user's selection.
    // |callback| will not be called if the dialog is destroyed.
    virtual void Show(const std::string& remote_user_email,
                      ResultCallback callback) = 0;
  };
  
  class It2MeConfirmationDialogFactory {
   public:
    It2MeConfirmationDialogFactory() {}
    virtual ~It2MeConfirmationDialogFactory() {}
  
    virtual std::unique_ptr<It2MeConfirmationDialog> Create();
  
   private:
    DISALLOW_COPY_AND_ASSIGN(It2MeConfirmationDialogFactory);
  };
  
  }  // namespace remoting
  
  #endif  // REMOTING_HOST_IT2ME_IT2ME_CONFIRMATION_DIALOG_H_
  