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