chrome/browser/native_window_notification_source.h

   1 // Copyright (c) 2011 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_NATIVE_WINDOW_NOTIFICATION_SOURCE_H_
   6 #define CHROME_BROWSER_NATIVE_WINDOW_NOTIFICATION_SOURCE_H_
   7
   8 #include "content/public/browser/notification_source.h"
   9 #include "ui/gfx/native_widget_types.h"
  10
  11 namespace content {
  12
  13 // Specialization of the Source class for native windows.  On Windows, these are
  14 // HWNDs rather than pointers, and since the Source class expects a pointer
  15 // type, this is necessary.  On Mac/Linux, these are pointers, so this is
  16 // unnecessary but harmless.
  17 template<>
  18 class Source<gfx::NativeWindow> : public content::NotificationSource {
  19  public:
  20   explicit Source(gfx::NativeWindow wnd) : content::NotificationSource(wnd) {}
  21
  22   explicit Source(const content::NotificationSource& other)
  23       : content::NotificationSource(other) {}
  24
  25   gfx::NativeWindow operator->() const { return ptr(); }
  26   gfx::NativeWindow ptr() const {
  27     return static_cast<gfx::NativeWindow>(const_cast<void*>(ptr_));
  28   }
  29 };
  30
  31 }
  32
  33 #endif  // CHROME_BROWSER_NATIVE_WINDOW_NOTIFICATION_SOURCE_H_