electron/chromium_src/chrome/browser/printing/print_view_manager_observer.h

// Copyright (c) 2011 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 CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_OBSERVER_H_
#define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_OBSERVER_H_

namespace printing {

// An interface the PrintViewManager uses to notify an observer when the print
// dialog is shown. Register the observer via PrintViewManager::set_observer.
class PrintViewManagerObserver {
 public:
  // Notifies the observer that the print dialog was shown.
  virtual void OnPrintDialogShown() = 0;

 protected:
  virtual ~PrintViewManagerObserver() {}
};

}  // namespace printing

#endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_OBSERVER_H_