chrome/browser/ui/native_window_tracker.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_NATIVE_WINDOW_TRACKER_H_
   6 #define CHROME_BROWSER_UI_NATIVE_WINDOW_TRACKER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "ui/gfx/native_widget_types.h"
  10
  11 // An observer which detects when a gfx::NativeWindow is closed.
  12 class NativeWindowTracker {
  13  public:
  14   virtual ~NativeWindowTracker() {}
  15
  16   static scoped_ptr<NativeWindowTracker> Create(gfx::NativeWindow window);
  17
  18   // Returns true if the native window passed to Create() has been closed.
  19   virtual bool WasNativeWindowClosed() const = 0;
  20 };
  21
  22 #endif  // CHROME_BROWSER_UI_NATIVE_WINDOW_TRACKER_H_