1// Copyright (c) 2012 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 UI_BASE_WIN_FOREGROUND_HELPER_H_ 6#define UI_BASE_WIN_FOREGROUND_HELPER_H_ 7 8#include "base/logging.h" 9#include "ui/base/ui_base_export.h" 10#include "ui/gfx/win/window_impl.h" 11 12namespace ui { 13 14// Helper class for moving a window to the foreground. 15// Windows XP and later will not allow a window which is in the background to 16// move to the foreground, unless requested by the current window in the 17// foreground. For automated testing, we really want some of our windows 18// to be capable of moving to the foreground. 19// 20// This is probably leveraging a windows bug. 21class UI_BASE_EXPORT ForegroundHelper : public gfx::WindowImpl { 22 public: 23 ForegroundHelper() : window_(NULL) { } 24 25 CR_BEGIN_MSG_MAP_EX(ForegroundHelper) 26 CR_MSG_WM_HOTKEY(OnHotKey) 27 CR_END_MSG_MAP() 28 29 // Brings a window into the foreground. 30 // Can be called from any window, even if the caller is not the 31 // foreground window. 32 static HRESULT SetForeground(HWND window); 33 34 private: 35 HRESULT ForegroundHotKey(HWND window); 36 37 // Handle the registered Hotkey being pressed. 38 void OnHotKey(int id, UINT vcode, UINT modifiers); 39 40 HWND window_; 41 42 DISALLOW_COPY_AND_ASSIGN(ForegroundHelper); 43}; 44 45} // namespace ui 46 47#endif // UI_BASE_WIN_FOREGROUND_HELPER_H_ 48