Back to index

lightning-sunbird  0.9+nobinonly
nsToolkit.h
Go to the documentation of this file.
00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   John Fairhurst <john_fairhurst@iname.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef TOOLKIT_H      
00040 #define TOOLKIT_H
00041 
00042 #include "nsdefs.h"
00043 #include "prmon.h"
00044 #include "nsIToolkit.h"
00045 #ifdef DEBUG
00046 #include <stdio.h>
00047 #endif
00048 
00049 struct MethodInfo;
00050 
00057 class nsToolkit : public nsIToolkit
00058 {
00059 
00060   public:
00061 
00062             NS_DECL_ISUPPORTS
00063 
00064                             nsToolkit();
00065             NS_IMETHOD      Init(PRThread *aThread);
00066             void            CallMethod(MethodInfo *info);
00067             MRESULT         SendMsg(HWND hwnd, ULONG msg, MPARAM mp1 = 0, MPARAM mp2 = 0);
00068             // Return whether the current thread is the application's Gui thread.  
00069             PRBool          IsGuiThread(void)      { return (PRBool)(mGuiThread == PR_GetCurrentThread());}
00070             PRThread*       GetGuiThread(void)       { return mGuiThread;   }
00071             HWND            GetDispatchWindow(void)  { return mDispatchWnd; }
00072             void            CreateInternalWindow(PRThread *aThread);
00073 
00074 private:
00075                             ~nsToolkit();
00076             void            CreateUIThread(void);
00077 
00078 public:
00079 
00080 protected:
00081     // Handle of the window used to receive dispatch messages.
00082     HWND        mDispatchWnd;
00083     // Thread Id of the "main" Gui thread.
00084     PRThread    *mGuiThread;
00085     // Monitor used to coordinate dispatch
00086     PRMonitor *mMonitor;
00087 };
00088 
00089 #define WM_CALLMETHOD   (WM_USER+1)
00090 
00091 inline void nsToolkit::CallMethod(MethodInfo *info)
00092 {
00093     NS_PRECONDITION(::WinIsWindow((HAB)0, mDispatchWnd), "Invalid window handle");
00094     ::WinSendMsg(mDispatchWnd, WM_CALLMETHOD, (MPARAM)0, MPFROMP(info));
00095 }
00096 
00097 #endif  // TOOLKIT_H