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// Copyright (c) 2012 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 UI_BASE_WIN_FOREGROUND_HELPER_H_
#define UI_BASE_WIN_FOREGROUND_HELPER_H_
#include "base/logging.h"
#include "ui/gfx/win/window_impl.h"
namespace ui {
// Helper class for moving a window to the foreground.
// Windows XP and later will not allow a window which is in the background to
// move to the foreground, unless requested by the current window in the
// foreground. For automated testing, we really want some of our windows
// to be capable of moving to the foreground.
//
// This is probably leveraging a windows bug.
class UI_EXPORT ForegroundHelper : public gfx::WindowImpl {
public:
ForegroundHelper() : window_(NULL) { }
BEGIN_MSG_MAP_EX(ForegroundHelper)
MESSAGE_HANDLER(WM_HOTKEY, OnHotKey)
END_MSG_MAP()
// Brings a window into the foreground.
// Can be called from any window, even if the caller is not the
// foreground window.
static HRESULT SetForeground(HWND window);
private:
HRESULT ForegroundHotKey(HWND window);
// Handle the registered Hotkey being pressed.
LRESULT OnHotKey(UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled);
HWND window_;
DISALLOW_COPY_AND_ASSIGN(ForegroundHelper);
};
} // namespace ui
#endif // UI_BASE_WIN_FOREGROUND_HELPER_H_
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