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nsClipboard.h
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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  *   Pierre Phaneuf <pp@ludusdesign.com>
00024  *   Peter Hartshorn <peter@igelaus.com.au>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsClipboard_h__
00041 #define nsClipboard_h__
00042 
00043 #include "nsIClipboard.h"
00044 #include "nsITransferable.h"
00045 #include "nsIClipboardOwner.h"
00046 #include <nsCOMPtr.h>
00047 #include "nsWidget.h"
00048 
00049 #include <X11/X.h>
00050 #include <X11/Xlib.h>
00051 
00052 class nsITransferable;
00053 class nsIClipboardOwner;
00054 class nsIWidget;
00055 
00060 class nsClipboard : public nsIClipboard
00061 {
00062 
00063 public:
00064   nsClipboard();
00065   virtual ~nsClipboard();
00066 
00067   static void Shutdown();
00068 
00069   //nsISupports
00070   NS_DECL_ISUPPORTS
00071 
00072   // nsIClipboard
00073   NS_DECL_NSICLIPBOARD
00074 
00075 protected:
00076   void Init(void);
00077 
00078   static nsEventStatus PR_CALLBACK Callback(nsGUIEvent *event);
00079   PRBool  mIgnoreEmptyNotification;
00080   inline nsITransferable *GetTransferable(PRInt32 aWhichClipboard);
00081   NS_IMETHOD SetNativeClipboardData(PRInt32 aWhichClipboard);
00082 
00083 private:
00084   static nsITransferable*     mTransferable; // strong reference
00085   nsCOMPtr<nsIClipboardOwner> mSelectionOwner;
00086   nsCOMPtr<nsIClipboardOwner> mGlobalOwner;
00087   nsCOMPtr<nsITransferable>   mSelectionTransferable;
00088   nsCOMPtr<nsITransferable>   mGlobalTransferable;
00089 
00090 
00091   // Used for communicating pasted data
00092   // from the asynchronous X routines back to a blocking paste:
00093   PRBool mBlocking;
00094 
00095   static Window sWindow;
00096   nsWidget *sWidget;
00097   static Display *sDisplay;
00098 
00099 };
00100 
00101 #endif // nsClipboard_h__