gecko-dev/widget/windows/nsToolkit.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Masayuki Nakano <masayuki@d-toybox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsToolkit_h__
#define nsToolkit_h__
#include "nsdefs.h"
#include "nsITimer.h"
#include "nsCOMPtr.h"
#include <windows.h>
// Avoid including windowsx.h to prevent macro pollution
#ifndef GET_X_LPARAM
#define GET_X_LPARAM(pt) (short(LOWORD(pt)))
#endif
#ifndef GET_Y_LPARAM
#define GET_Y_LPARAM(pt) (short(HIWORD(pt)))
#endif
/**
* Makes sure exit/enter mouse messages are always dispatched.
* In the case where the mouse has exited the outer most window the
* only way to tell if it has exited is to set a timer and look at the
* mouse pointer to see if it is within the outer most window.
*/
class MouseTrailer
{
public:
HWND GetMouseTrailerWindow() { return mMouseTrailerWindow; }
HWND GetCaptureWindow() { return mCaptureWindow; }
void SetMouseTrailerWindow(HWND aWnd);
void SetCaptureWindow(HWND aWnd);
void Disable() { mEnabled = false; DestroyTimer(); }
void Enable() { mEnabled = true; CreateTimer(); }
void DestroyTimer();
MouseTrailer();
~MouseTrailer();
private:
nsresult CreateTimer();
static void TimerProc(nsITimer* aTimer, void* aClosure);
// Information for mouse enter/exit events
HWND mMouseTrailerWindow;
HWND mCaptureWindow;
bool mIsInCaptureMode;
bool mEnabled;
nsCOMPtr<nsITimer> mTimer;
};
/**
* Wrapper around the thread running the message pump.
* The toolkit abstraction is necessary because the message pump must
* execute within the same thread that created the widget under Win32.
*/
class nsToolkit
{
public:
nsToolkit();
private:
~nsToolkit();
public:
static nsToolkit* GetToolkit();
static HINSTANCE mDllInstance;
static MouseTrailer *gMouseTrailer;
static void Startup(HMODULE hModule);
static void Shutdown();
static void StartAllowingD3D9();
protected:
static nsToolkit* gToolkit;
nsCOMPtr<nsITimer> mD3D9Timer;
MouseTrailer mMouseTrailer;
};
#endif // TOOLKIT_H