michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsToolkit_h__
michael@0: #define nsToolkit_h__
michael@0: 
michael@0: #include "nsdefs.h"
michael@0: 
michael@0: #include "nsITimer.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include <windows.h>
michael@0: 
michael@0: // Avoid including windowsx.h to prevent macro pollution
michael@0: #ifndef GET_X_LPARAM
michael@0: #define GET_X_LPARAM(pt) (short(LOWORD(pt)))
michael@0: #endif
michael@0: #ifndef GET_Y_LPARAM
michael@0: #define GET_Y_LPARAM(pt) (short(HIWORD(pt)))
michael@0: #endif
michael@0: 
michael@0: /**
michael@0:  * Makes sure exit/enter mouse messages are always dispatched.
michael@0:  * In the case where the mouse has exited the outer most window the
michael@0:  * only way to tell if it has exited is to set a timer and look at the
michael@0:  * mouse pointer to see if it is within the outer most window.
michael@0:  */ 
michael@0: 
michael@0: class MouseTrailer 
michael@0: {
michael@0: public:
michael@0:     HWND                  GetMouseTrailerWindow() { return mMouseTrailerWindow; }
michael@0:     HWND                  GetCaptureWindow() { return mCaptureWindow; }
michael@0: 
michael@0:     void                  SetMouseTrailerWindow(HWND aWnd);
michael@0:     void                  SetCaptureWindow(HWND aWnd);
michael@0:     void                  Disable() { mEnabled = false; DestroyTimer(); }
michael@0:     void                  Enable() { mEnabled = true; CreateTimer(); }
michael@0:     void                  DestroyTimer();
michael@0: 
michael@0:                           MouseTrailer();
michael@0:                           ~MouseTrailer();
michael@0: private:
michael@0: 
michael@0:     nsresult              CreateTimer();
michael@0: 
michael@0:     static void           TimerProc(nsITimer* aTimer, void* aClosure);
michael@0: 
michael@0:     // Information for mouse enter/exit events
michael@0:     HWND                  mMouseTrailerWindow;
michael@0:     HWND                  mCaptureWindow;
michael@0:     bool                  mIsInCaptureMode;
michael@0:     bool                  mEnabled;
michael@0:     nsCOMPtr<nsITimer>    mTimer;
michael@0: };
michael@0: 
michael@0: /**
michael@0:  * Wrapper around the thread running the message pump.
michael@0:  * The toolkit abstraction is necessary because the message pump must
michael@0:  * execute within the same thread that created the widget under Win32.
michael@0:  */ 
michael@0: 
michael@0: class nsToolkit
michael@0: {
michael@0: public:
michael@0:     nsToolkit();
michael@0: 
michael@0: private:
michael@0:     ~nsToolkit();
michael@0: 
michael@0: public:
michael@0:     static nsToolkit* GetToolkit();
michael@0: 
michael@0:     static HINSTANCE mDllInstance;
michael@0:     static MouseTrailer *gMouseTrailer;
michael@0: 
michael@0:     static void Startup(HMODULE hModule);
michael@0:     static void Shutdown();
michael@0:     static void StartAllowingD3D9();
michael@0: 
michael@0: protected:
michael@0:     static nsToolkit* gToolkit;
michael@0: 
michael@0:     nsCOMPtr<nsITimer> mD3D9Timer;
michael@0:     MouseTrailer mMouseTrailer;
michael@0: };
michael@0: 
michael@0: #endif  // TOOLKIT_H