svn merge ^/branches/released

1 files changed, 494 insertions, 494 deletions

diff --git a/xorg-server/hw/xwin/winclipboardwrappers.c b/xorg-server/hw/xwin/winclipboardwrappers.c
index a096a2a51..172365d27 100644
--- a/xorg-server/hw/xwin/winclipboardwrappers.c
+++ b/xorg-server/hw/xwin/winclipboardwrappers.c
@@ -1,494 +1,494 @@
-/*
- *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
- *Copyright (C) Colin Harrison 2005-2008
- *
- *Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- *"Software"), to deal in the Software without restriction, including
- *without limitation the rights to use, copy, modify, merge, publish,
- *distribute, sublicense, and/or sell copies of the Software, and to
- *permit persons to whom the Software is furnished to do so, subject to
- *the following conditions:
- *
- *The above copyright notice and this permission notice shall be
- *included in all copies or substantial portions of the Software.
- *
- *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
- *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- *Except as contained in this notice, the name of the copyright holder(s)
- *and author(s) shall not be used in advertising or otherwise to promote
- *the sale, use or other dealings in this Software without prior written
- *authorization from the copyright holder(s) and author(s).
- *
- * Authors:	Harold L Hunt II
- *              Colin Harrison
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include "win.h"
-#include "dixstruct.h"
-#include <X11/Xatom.h>
-
-
-/*
- * Constants
- */
-
-#define CLIP_NUM_CALLS			4
-#define CLIP_NUM_SELECTIONS		2
-#define CLIP_OWN_PRIMARY		0
-#define CLIP_OWN_CLIPBOARD		1
-
-
-/*
- * Local function prototypes
- */
-
-DISPATCH_PROC(winProcEstablishConnection);
-DISPATCH_PROC(winProcQueryTree);
-DISPATCH_PROC(winProcSetSelectionOwner);
-
-
-/*
- * References to external symbols
- */
-
-extern Bool		g_fUnicodeSupport;
-extern int		g_iNumScreens;
-extern unsigned int	g_uiAuthDataLen;
-extern char		*g_pAuthData;
-extern Bool		g_fXdmcpEnabled;
-extern Bool		g_fClipboardLaunched;
-extern Bool		g_fClipboardStarted;
-extern Bool		g_fClipboard;
-extern Window		g_iClipboardWindow;
-extern Atom		g_atomLastOwnedSelection;
-extern HWND		g_hwndClipboard;
-
-extern winDispatchProcPtr	winProcEstablishConnectionOrig;
-extern winDispatchProcPtr	winProcQueryTreeOrig;
-extern winDispatchProcPtr	winProcSetSelectionOwnerOrig;
-
-
-/*
- * Wrapper for internal QueryTree function.
- * Hides the clipboard client when it is the only client remaining.
- */
-
-int
-winProcQueryTree (ClientPtr client)
-{
-  int			iReturn;
-
-  winDebug ("winProcQueryTree - Hello\n");
-
-  /*
-   * This procedure is only used for initialization.
-   * We can unwrap the original procedure at this point
-   * so that this function is no longer called until the
-   * server resets and the function is wrapped again.
-   */
-  ProcVector[X_QueryTree] = winProcQueryTreeOrig;
-
-  /*
-   * Call original function and bail if it fails.
-   * NOTE: We must do this first, since we need XdmcpOpenDisplay
-   * to be called before we initialize our clipboard client.
-   */
-  iReturn = (*winProcQueryTreeOrig) (client);
-  if (iReturn != 0)
-    {
-      ErrorF ("winProcQueryTree - ProcQueryTree failed, bailing.\n");
-      return iReturn;
-    }
-
-  /* Make errors more obvious */
-  winProcQueryTreeOrig = NULL;
-
-  /* Do nothing if clipboard is not enabled */
-  if (!g_fClipboard)
-    {
-      winDebug ("winProcQueryTree - Clipboard is not enabled, "
-	      "returning.\n");
-      return iReturn;
-    }
-
-  /* If the clipboard client has already been started, abort */
-  if (g_fClipboardLaunched)
-    {
-      winDebug ("winProcQueryTree - Clipboard client already "
-	      "launched, returning.\n");
-      return iReturn;
-    }
-
-  /* Startup the clipboard client if clipboard mode is being used */
-  if (g_fXdmcpEnabled && g_fClipboard)
-    {
-      /*
-       * NOTE: The clipboard client is started here for a reason:
-       * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%)
-       * 2) If the clipboard client attaches during X Server startup,
-       *    then it becomes the "magic client" that causes the X Server
-       *    to reset if it exits.
-       * 3) XDMCP calls KillAllClients when it starts up.
-       * 4) The clipboard client is a client, so it is killed.
-       * 5) The clipboard client is the "magic client", so the X Server
-       *    resets itself.
-       * 6) This repeats ad infinitum.
-       * 7) We avoid this by waiting until at least one client (could
-       *    be XDM, could be another client) connects, which makes it
-       *    almost certain that the clipboard client will not connect
-       *    until after XDM when using XDMCP.
-       * 8) Unfortunately, there is another problem.
-       * 9) XDM walks the list of windows with XQueryTree,
-       *    killing any client it finds with a window.
-       * 10)Thus, when using XDMCP we wait until the first call
-       *    to ProcQueryTree before we startup the clipboard client.
-       *    This should prevent XDM from finding the clipboard client,
-       *    since it has not yet created a window.
-       * 11)Startup when not using XDMCP is handled in
-       *    winProcEstablishConnection.
-       */
-      
-      /* Create the clipboard client thread */
-      if (!winInitClipboard ())
-	{
-	  ErrorF ("winProcQueryTree - winClipboardInit "
-		  "failed.\n");
-	  return iReturn;
-	}
-      
-      winDebug ("winProcQueryTree - winInitClipboard returned.\n");
-    }
-  
-  /* Flag that clipboard client has been launched */
-  g_fClipboardLaunched = TRUE;
-
-  return iReturn;
-}
-
-
-/*
- * Wrapper for internal EstablishConnection function.
- * Initializes internal clients that must not be started until
- * an external client has connected.
- */
-
-int
-winProcEstablishConnection (ClientPtr client)
-{
-  int			iReturn;
-  static int		s_iCallCount = 0;
-  static unsigned long	s_ulServerGeneration = 0;
-
-  #ifdef WINDBG
-  if (s_iCallCount == 0 || s_iCallCount == CLIP_NUM_CALLS) winDebug ("winProcEstablishConnection - Hello\n");
-  #endif
-
-  /* Do nothing if clipboard is not enabled */
-  if (!g_fClipboard)
-    {
-      winDebug ("winProcEstablishConnection - Clipboard is not enabled, "
-	      "returning.\n");
-      
-      /* Unwrap the original function, call it, and return */
-      InitialVector[2] = winProcEstablishConnectionOrig;
-      iReturn = (*winProcEstablishConnectionOrig) (client);
-      winProcEstablishConnectionOrig = NULL;
-      return iReturn;
-    }
-
-  /* Watch for server reset */
-  if (s_ulServerGeneration != serverGeneration)
-    {
-      /* Save new generation number */
-      s_ulServerGeneration = serverGeneration;
-
-      /* Reset call count */
-      s_iCallCount = 0;
-    }
-
-  /* Increment call count */
-  ++s_iCallCount;
-
-  /* Wait for CLIP_NUM_CALLS when Xdmcp is enabled */
-  if (g_fXdmcpEnabled
-      && !g_fClipboardLaunched
-      && s_iCallCount < CLIP_NUM_CALLS)
-    {
-      #ifdef WINDBG
-      if (s_iCallCount == 1) winDebug ("winProcEstablishConnection - Xdmcp, waiting to "
-	      "start clipboard client until %dth call", CLIP_NUM_CALLS);
-      if (s_iCallCount == CLIP_NUM_CALLS - 1) winDebug (".\n");
-      else winDebug (".");
-      #endif
-      return (*winProcEstablishConnectionOrig) (client);
-    }
-
-  /*
-   * This procedure is only used for initialization.
-   * We can unwrap the original procedure at this point
-   * so that this function is no longer called until the
-   * server resets and the function is wrapped again.
-   */
-  InitialVector[2] = winProcEstablishConnectionOrig;
-
-  /*
-   * Call original function and bail if it fails.
-   * NOTE: We must do this first, since we need XdmcpOpenDisplay
-   * to be called before we initialize our clipboard client.
-   */
-  iReturn = (*winProcEstablishConnectionOrig) (client);
-  if (iReturn != 0)
-    {
-      ErrorF ("winProcEstablishConnection - ProcEstablishConnection "
-	      "failed, bailing.\n");
-      return iReturn;
-    }
-
-  /* Clear original function pointer */
-  winProcEstablishConnectionOrig = NULL;
-
-  /* If the clipboard client has already been started, abort */
-  if (g_fClipboardLaunched)
-    {
-      winDebug ("winProcEstablishConnection - Clipboard client already "
-	      "launched, returning.\n");
-      return iReturn;
-    }
-
-  /* Startup the clipboard client if clipboard mode is being used */
-  if (g_fClipboard)
-    {
-      /*
-       * NOTE: The clipboard client is started here for a reason:
-       * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%)
-       * 2) If the clipboard client attaches during X Server startup,
-       *    then it becomes the "magic client" that causes the X Server
-       *    to reset if it exits.
-       * 3) XDMCP calls KillAllClients when it starts up.
-       * 4) The clipboard client is a client, so it is killed.
-       * 5) The clipboard client is the "magic client", so the X Server
-       *    resets itself.
-       * 6) This repeats ad infinitum.
-       * 7) We avoid this by waiting until at least one client (could
-       *    be XDM, could be another client) connects, which makes it
-       *    almost certain that the clipboard client will not connect
-       *    until after XDM when using XDMCP.
-       * 8) Unfortunately, there is another problem.
-       * 9) XDM walks the list of windows with XQueryTree,
-       *    killing any client it finds with a window.
-       * 10)Thus, when using XDMCP we wait until CLIP_NUM_CALLS
-       *    to ProcEstablishCeonnection before we startup the clipboard
-       *    client.  This should prevent XDM from finding the clipboard
-       *    client, since it has not yet created a window.
-       */
-      
-      /* Create the clipboard client thread */
-      if (!winInitClipboard ())
-	{
-	  ErrorF ("winProcEstablishConnection - winClipboardInit "
-		  "failed.\n");
-	  return iReturn;
-	}
-      
-      winDebug ("winProcEstablishConnection - winInitClipboard returned.\n");
-    }
-  
-  /* Flag that clipboard client has been launched */
-  g_fClipboardLaunched = TRUE;
-
-  return iReturn;
-}
-
-
-/*
- * Wrapper for internal SetSelectionOwner function.
- * Grabs ownership of Windows clipboard when X11 clipboard owner changes.
- */
-int
-winProcSetSelectionOwner (ClientPtr client)
-{
-  int			i;
-  DrawablePtr		pDrawable;
-  WindowPtr		pWindow = None;
-  static Window		s_iOwners[CLIP_NUM_SELECTIONS] = {None};
-  static unsigned long	s_ulServerGeneration = 0;
-  REQUEST(xSetSelectionOwnerReq);
-  
-  REQUEST_SIZE_MATCH(xSetSelectionOwnerReq);
-
-  winDebug ("winProcSetSelectionOwner - Hello.\n");
-
-  /* Watch for server reset */
-  if (s_ulServerGeneration != serverGeneration)
-    {
-      /* Save new generation number */
-      s_ulServerGeneration = serverGeneration;
-                  
-      /* Initialize static variables */
-      for (i = 0; i < CLIP_NUM_SELECTIONS; ++i)
-	s_iOwners[i] = None;
-    }
-
-  /* Abort if clipboard not completely initialized yet */
-  if (!g_fClipboardStarted)
-    {
-        winDebug ("winProcSetSelectionOwner - Clipboard not yet started, "
-	        "aborting.\n");
-        goto winProcSetSelectionOwner_Done;
-    }
-  
-  /* Grab window if we have one */
-  if (None != stuff->window)
-    {
-      /* Grab the Window from the request */
-      int rc = dixLookupWindow(&pWindow, stuff->window, client, DixReadAccess);
-      if (rc != Success) {
-	  ErrorF ("winProcSetSelectionOwner - Found BadWindow, aborting.\n");
-	  goto winProcSetSelectionOwner_Done;
-      }
-    }
-
-  /* Now we either have a valid window or None */
-
-  /* Save selection owners for monitored selections, ignore other selections */
-  if (XA_PRIMARY == stuff->selection)
-    {
-      /* Look for owned -> not owned transition */
-      if (None == stuff->window
-	  && None != s_iOwners[CLIP_OWN_PRIMARY])
-	{
-	  winDebug ("winProcSetSelectionOwner - PRIMARY - Going from "
-		  "owned to not owned.\n");
-
-	  /* Adjust last owned selection */
-	  if (None != s_iOwners[CLIP_OWN_CLIPBOARD])
-	    g_atomLastOwnedSelection = MakeAtom ("CLIPBOARD", 9, TRUE);
-	  else
-	    g_atomLastOwnedSelection = None;
-	}
-      
-      /* Save new selection owner or None */
-      s_iOwners[CLIP_OWN_PRIMARY] = stuff->window;
-
-      winDebug ("winProcSetSelectionOwner - PRIMARY - Now owned by: 0x%x (clipboard is 0x%x)\n",
-	      stuff->window,g_iClipboardWindow);
-    }
-  else if (MakeAtom ("CLIPBOARD", 9, TRUE) == stuff->selection)
-    {
-      /* Look for owned -> not owned transition */
-      if (None == stuff->window
-	  && None != s_iOwners[CLIP_OWN_CLIPBOARD])
-	{
-	  winDebug ("winProcSetSelectionOwner - CLIPBOARD - Going from "
-		  "owned to not owned.\n");
-
-	  /* Adjust last owned selection */
-	  if (None != s_iOwners[CLIP_OWN_PRIMARY])
-	    g_atomLastOwnedSelection = XA_PRIMARY;
-	  else
-	    g_atomLastOwnedSelection = None;
-	}
-      
-      /* Save new selection owner or None */
-      s_iOwners[CLIP_OWN_CLIPBOARD] = stuff->window;
-
-      winDebug ("winProcSetSelectionOwner - CLIPBOARD - Now owned by: 0x%x, clipboard is 0x%x\n",
-	      stuff->window,g_iClipboardWindow);
-    }
-  else
-    goto winProcSetSelectionOwner_Done;
-
-  /*
-   * At this point, if one of the selections is still owned by the 
-   * clipboard manager then it should be marked as unowned since
-   * we will be taking ownership of the Win32 clipboard.
-   */
-  if (g_iClipboardWindow == s_iOwners[CLIP_OWN_PRIMARY])
-    s_iOwners[CLIP_OWN_PRIMARY] = None;
-  if (g_iClipboardWindow == s_iOwners[CLIP_OWN_CLIPBOARD])
-    s_iOwners[CLIP_OWN_CLIPBOARD] = None;
-
-  /* Abort if no window at this point */
-  if (None == stuff->window)
-    {
-      winDebug ("winProcSetSelectionOwner - No window, returning.\n");
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  /* Abort if invalid selection */
-  if (!ValidAtom (stuff->selection))
-    {
-      winDebug ("winProcSetSelectionOwner - Found BadAtom, aborting.\n");
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  /* Cast Window to Drawable */
-  pDrawable = (DrawablePtr) pWindow;
-  
-  /* Abort if clipboard manager is owning the selection */
-  if (pDrawable->id == g_iClipboardWindow)
-    {
-      winDebug ("winProcSetSelectionOwner - We changed ownership, "
-	      "aborting.\n");
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  /* Abort if root window is taking ownership */
-  if (pDrawable->id == 0)
-    {
-      winDebug ("winProcSetSelectionOwner - Root window taking ownership, "
-	      "aborting\n");
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  /* Access the Windows clipboard */
-  if (!OpenClipboard (g_hwndClipboard))
-    {
-      ErrorF ("winProcSetSelectionOwner - OpenClipboard () failed: %08x, hwnd: %08x\n",
-	      (int) GetLastError (),g_hwndClipboard);
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  /* Take ownership of the Windows clipboard */
-  if (!EmptyClipboard ())
-    {
-      ErrorF ("winProcSetSelectionOwner - EmptyClipboard () failed: %08x\n",
-	      (int) GetLastError ());
-      CloseClipboard ();
-      goto winProcSetSelectionOwner_Done;
-    }
-
-  winDebug("winProcSetSelectionOwner - SetClipboardData NULL\n");
-
-  /* Advertise Unicode if we support it */
-  if (g_fUnicodeSupport)
-    SetClipboardData (CF_UNICODETEXT, NULL);
-
-  /* Always advertise regular text */
-  SetClipboardData (CF_TEXT, NULL);
-
-  /* Save handle to last owned selection */
-  g_atomLastOwnedSelection = stuff->selection;
-
-  /* Release the clipboard */
-  if (!CloseClipboard ())
-    {
-      ErrorF ("winProcSetSelectionOwner - CloseClipboard () failed: "
-	      "%08x\n",
-	      (int) GetLastError ());
-      goto winProcSetSelectionOwner_Done;
-    }
-
-winProcSetSelectionOwner_Done:
-  return (*winProcSetSelectionOwnerOrig) (client);
-}
+/*

+ *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.

+ *Copyright (C) Colin Harrison 2005-2008

+ *

+ *Permission is hereby granted, free of charge, to any person obtaining

+ * a copy of this software and associated documentation files (the

+ *"Software"), to deal in the Software without restriction, including

+ *without limitation the rights to use, copy, modify, merge, publish,

+ *distribute, sublicense, and/or sell copies of the Software, and to

+ *permit persons to whom the Software is furnished to do so, subject to

+ *the following conditions:

+ *

+ *The above copyright notice and this permission notice shall be

+ *included in all copies or substantial portions of the Software.

+ *

+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

+ *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR

+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ *

+ *Except as contained in this notice, the name of the copyright holder(s)

+ *and author(s) shall not be used in advertising or otherwise to promote

+ *the sale, use or other dealings in this Software without prior written

+ *authorization from the copyright holder(s) and author(s).

+ *

+ * Authors:	Harold L Hunt II

+ *              Colin Harrison

+ */

+

+#ifdef HAVE_XWIN_CONFIG_H

+#include <xwin-config.h>

+#endif

+#include "win.h"

+#include "dixstruct.h"

+#include <X11/Xatom.h>

+

+

+/*

+ * Constants

+ */

+

+#define CLIP_NUM_CALLS			4

+#define CLIP_NUM_SELECTIONS		2

+#define CLIP_OWN_PRIMARY		0

+#define CLIP_OWN_CLIPBOARD		1

+

+

+/*

+ * Local function prototypes

+ */

+

+DISPATCH_PROC(winProcEstablishConnection);

+DISPATCH_PROC(winProcQueryTree);

+DISPATCH_PROC(winProcSetSelectionOwner);

+

+

+/*

+ * References to external symbols

+ */

+

+extern Bool		g_fUnicodeSupport;

+extern int		g_iNumScreens;

+extern unsigned int	g_uiAuthDataLen;

+extern char		*g_pAuthData;

+extern Bool		g_fXdmcpEnabled;

+extern Bool		g_fClipboardLaunched;

+extern Bool		g_fClipboardStarted;

+extern Bool		g_fClipboard;

+extern Window		g_iClipboardWindow;

+extern Atom		g_atomLastOwnedSelection;

+extern HWND		g_hwndClipboard;

+

+extern winDispatchProcPtr	winProcEstablishConnectionOrig;

+extern winDispatchProcPtr	winProcQueryTreeOrig;

+extern winDispatchProcPtr	winProcSetSelectionOwnerOrig;

+

+

+/*

+ * Wrapper for internal QueryTree function.

+ * Hides the clipboard client when it is the only client remaining.

+ */

+

+int

+winProcQueryTree (ClientPtr client)

+{

+  int			iReturn;

+

+  winDebug ("winProcQueryTree - Hello\n");

+

+  /*

+   * This procedure is only used for initialization.

+   * We can unwrap the original procedure at this point

+   * so that this function is no longer called until the

+   * server resets and the function is wrapped again.

+   */

+  ProcVector[X_QueryTree] = winProcQueryTreeOrig;

+

+  /*

+   * Call original function and bail if it fails.

+   * NOTE: We must do this first, since we need XdmcpOpenDisplay

+   * to be called before we initialize our clipboard client.

+   */

+  iReturn = (*winProcQueryTreeOrig) (client);

+  if (iReturn != 0)

+    {

+      ErrorF ("winProcQueryTree - ProcQueryTree failed, bailing.\n");

+      return iReturn;

+    }

+

+  /* Make errors more obvious */

+  winProcQueryTreeOrig = NULL;

+

+  /* Do nothing if clipboard is not enabled */

+  if (!g_fClipboard)

+    {

+      winDebug ("winProcQueryTree - Clipboard is not enabled, "

+	      "returning.\n");

+      return iReturn;

+    }

+

+  /* If the clipboard client has already been started, abort */

+  if (g_fClipboardLaunched)

+    {

+      winDebug ("winProcQueryTree - Clipboard client already "

+	      "launched, returning.\n");

+      return iReturn;

+    }

+

+  /* Startup the clipboard client if clipboard mode is being used */

+  if (g_fXdmcpEnabled && g_fClipboard)

+    {

+      /*

+       * NOTE: The clipboard client is started here for a reason:

+       * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%)

+       * 2) If the clipboard client attaches during X Server startup,

+       *    then it becomes the "magic client" that causes the X Server

+       *    to reset if it exits.

+       * 3) XDMCP calls KillAllClients when it starts up.

+       * 4) The clipboard client is a client, so it is killed.

+       * 5) The clipboard client is the "magic client", so the X Server

+       *    resets itself.

+       * 6) This repeats ad infinitum.

+       * 7) We avoid this by waiting until at least one client (could

+       *    be XDM, could be another client) connects, which makes it

+       *    almost certain that the clipboard client will not connect

+       *    until after XDM when using XDMCP.

+       * 8) Unfortunately, there is another problem.

+       * 9) XDM walks the list of windows with XQueryTree,

+       *    killing any client it finds with a window.

+       * 10)Thus, when using XDMCP we wait until the first call

+       *    to ProcQueryTree before we startup the clipboard client.

+       *    This should prevent XDM from finding the clipboard client,

+       *    since it has not yet created a window.

+       * 11)Startup when not using XDMCP is handled in

+       *    winProcEstablishConnection.

+       */

+      

+      /* Create the clipboard client thread */

+      if (!winInitClipboard ())

+	{

+	  ErrorF ("winProcQueryTree - winClipboardInit "

+		  "failed.\n");

+	  return iReturn;

+	}

+      

+      winDebug ("winProcQueryTree - winInitClipboard returned.\n");

+    }

+  

+  /* Flag that clipboard client has been launched */

+  g_fClipboardLaunched = TRUE;

+

+  return iReturn;

+}

+

+

+/*

+ * Wrapper for internal EstablishConnection function.

+ * Initializes internal clients that must not be started until

+ * an external client has connected.

+ */

+

+int

+winProcEstablishConnection (ClientPtr client)

+{

+  int			iReturn;

+  static int		s_iCallCount = 0;

+  static unsigned long	s_ulServerGeneration = 0;

+

+  #ifdef WINDBG

+  if (s_iCallCount == 0 || s_iCallCount == CLIP_NUM_CALLS) winDebug ("winProcEstablishConnection - Hello\n");

+  #endif

+

+  /* Do nothing if clipboard is not enabled */

+  if (!g_fClipboard)

+    {

+      winDebug ("winProcEstablishConnection - Clipboard is not enabled, "

+	      "returning.\n");

+      

+      /* Unwrap the original function, call it, and return */

+      InitialVector[2] = winProcEstablishConnectionOrig;

+      iReturn = (*winProcEstablishConnectionOrig) (client);

+      winProcEstablishConnectionOrig = NULL;

+      return iReturn;

+    }

+

+  /* Watch for server reset */

+  if (s_ulServerGeneration != serverGeneration)

+    {

+      /* Save new generation number */

+      s_ulServerGeneration = serverGeneration;

+

+      /* Reset call count */

+      s_iCallCount = 0;

+    }

+

+  /* Increment call count */

+  ++s_iCallCount;

+

+  /* Wait for CLIP_NUM_CALLS when Xdmcp is enabled */

+  if (g_fXdmcpEnabled

+      && !g_fClipboardLaunched

+      && s_iCallCount < CLIP_NUM_CALLS)

+    {

+      #ifdef WINDBG

+      if (s_iCallCount == 1) winDebug ("winProcEstablishConnection - Xdmcp, waiting to "

+	      "start clipboard client until %dth call", CLIP_NUM_CALLS);

+      if (s_iCallCount == CLIP_NUM_CALLS - 1) winDebug (".\n");

+      else winDebug (".");

+      #endif

+      return (*winProcEstablishConnectionOrig) (client);

+    }

+

+  /*

+   * This procedure is only used for initialization.

+   * We can unwrap the original procedure at this point

+   * so that this function is no longer called until the

+   * server resets and the function is wrapped again.

+   */

+  InitialVector[2] = winProcEstablishConnectionOrig;

+

+  /*

+   * Call original function and bail if it fails.

+   * NOTE: We must do this first, since we need XdmcpOpenDisplay

+   * to be called before we initialize our clipboard client.

+   */

+  iReturn = (*winProcEstablishConnectionOrig) (client);

+  if (iReturn != 0)

+    {

+      ErrorF ("winProcEstablishConnection - ProcEstablishConnection "

+	      "failed, bailing.\n");

+      return iReturn;

+    }

+

+  /* Clear original function pointer */

+  winProcEstablishConnectionOrig = NULL;

+

+  /* If the clipboard client has already been started, abort */

+  if (g_fClipboardLaunched)

+    {

+      winDebug ("winProcEstablishConnection - Clipboard client already "

+	      "launched, returning.\n");

+      return iReturn;

+    }

+

+  /* Startup the clipboard client if clipboard mode is being used */

+  if (g_fClipboard)

+    {

+      /*

+       * NOTE: The clipboard client is started here for a reason:

+       * 1) Assume you are using XDMCP (e.g. XWin -query %hostname%)

+       * 2) If the clipboard client attaches during X Server startup,

+       *    then it becomes the "magic client" that causes the X Server

+       *    to reset if it exits.

+       * 3) XDMCP calls KillAllClients when it starts up.

+       * 4) The clipboard client is a client, so it is killed.

+       * 5) The clipboard client is the "magic client", so the X Server

+       *    resets itself.

+       * 6) This repeats ad infinitum.

+       * 7) We avoid this by waiting until at least one client (could

+       *    be XDM, could be another client) connects, which makes it

+       *    almost certain that the clipboard client will not connect

+       *    until after XDM when using XDMCP.

+       * 8) Unfortunately, there is another problem.

+       * 9) XDM walks the list of windows with XQueryTree,

+       *    killing any client it finds with a window.

+       * 10)Thus, when using XDMCP we wait until CLIP_NUM_CALLS

+       *    to ProcEstablishCeonnection before we startup the clipboard

+       *    client.  This should prevent XDM from finding the clipboard

+       *    client, since it has not yet created a window.

+       */

+      

+      /* Create the clipboard client thread */

+      if (!winInitClipboard ())

+	{

+	  ErrorF ("winProcEstablishConnection - winClipboardInit "

+		  "failed.\n");

+	  return iReturn;

+	}

+      

+      winDebug ("winProcEstablishConnection - winInitClipboard returned.\n");

+    }

+  

+  /* Flag that clipboard client has been launched */

+  g_fClipboardLaunched = TRUE;

+

+  return iReturn;

+}

+

+

+/*

+ * Wrapper for internal SetSelectionOwner function.

+ * Grabs ownership of Windows clipboard when X11 clipboard owner changes.

+ */

+int

+winProcSetSelectionOwner (ClientPtr client)

+{

+  int			i;

+  DrawablePtr		pDrawable;

+  WindowPtr		pWindow = None;

+  static Window		s_iOwners[CLIP_NUM_SELECTIONS] = {None};

+  static unsigned long	s_ulServerGeneration = 0;

+  REQUEST(xSetSelectionOwnerReq);

+  

+  REQUEST_SIZE_MATCH(xSetSelectionOwnerReq);

+

+  winDebug ("winProcSetSelectionOwner - Hello.\n");

+

+  /* Watch for server reset */

+  if (s_ulServerGeneration != serverGeneration)

+    {

+      /* Save new generation number */

+      s_ulServerGeneration = serverGeneration;

+                  

+      /* Initialize static variables */

+      for (i = 0; i < CLIP_NUM_SELECTIONS; ++i)

+	s_iOwners[i] = None;

+    }

+

+  /* Abort if clipboard not completely initialized yet */

+  if (!g_fClipboardStarted)

+    {

+        winDebug ("winProcSetSelectionOwner - Clipboard not yet started, "

+	        "aborting.\n");

+        goto winProcSetSelectionOwner_Done;

+    }

+  

+  /* Grab window if we have one */

+  if (None != stuff->window)

+    {

+      /* Grab the Window from the request */

+      int rc = dixLookupWindow(&pWindow, stuff->window, client, DixReadAccess);

+      if (rc != Success) {

+	  ErrorF ("winProcSetSelectionOwner - Found BadWindow, aborting.\n");

+	  goto winProcSetSelectionOwner_Done;

+      }

+    }

+

+  /* Now we either have a valid window or None */

+

+  /* Save selection owners for monitored selections, ignore other selections */

+  if (XA_PRIMARY == stuff->selection)

+    {

+      /* Look for owned -> not owned transition */

+      if (None == stuff->window

+	  && None != s_iOwners[CLIP_OWN_PRIMARY])

+	{

+	  winDebug ("winProcSetSelectionOwner - PRIMARY - Going from "

+		  "owned to not owned.\n");

+

+	  /* Adjust last owned selection */

+	  if (None != s_iOwners[CLIP_OWN_CLIPBOARD])

+	    g_atomLastOwnedSelection = MakeAtom ("CLIPBOARD", 9, TRUE);

+	  else

+	    g_atomLastOwnedSelection = None;

+	}

+      

+      /* Save new selection owner or None */

+      s_iOwners[CLIP_OWN_PRIMARY] = stuff->window;

+

+      winDebug ("winProcSetSelectionOwner - PRIMARY - Now owned by: 0x%x (clipboard is 0x%x)\n",

+	      stuff->window,g_iClipboardWindow);

+    }

+  else if (MakeAtom ("CLIPBOARD", 9, TRUE) == stuff->selection)

+    {

+      /* Look for owned -> not owned transition */

+      if (None == stuff->window

+	  && None != s_iOwners[CLIP_OWN_CLIPBOARD])

+	{

+	  winDebug ("winProcSetSelectionOwner - CLIPBOARD - Going from "

+		  "owned to not owned.\n");

+

+	  /* Adjust last owned selection */

+	  if (None != s_iOwners[CLIP_OWN_PRIMARY])

+	    g_atomLastOwnedSelection = XA_PRIMARY;

+	  else

+	    g_atomLastOwnedSelection = None;

+	}

+      

+      /* Save new selection owner or None */

+      s_iOwners[CLIP_OWN_CLIPBOARD] = stuff->window;

+

+      winDebug ("winProcSetSelectionOwner - CLIPBOARD - Now owned by: 0x%x, clipboard is 0x%x\n",

+	      stuff->window,g_iClipboardWindow);

+    }

+  else

+    goto winProcSetSelectionOwner_Done;

+

+  /*

+   * At this point, if one of the selections is still owned by the 

+   * clipboard manager then it should be marked as unowned since

+   * we will be taking ownership of the Win32 clipboard.

+   */

+  if (g_iClipboardWindow == s_iOwners[CLIP_OWN_PRIMARY])

+    s_iOwners[CLIP_OWN_PRIMARY] = None;

+  if (g_iClipboardWindow == s_iOwners[CLIP_OWN_CLIPBOARD])

+    s_iOwners[CLIP_OWN_CLIPBOARD] = None;

+

+  /* Abort if no window at this point */

+  if (None == stuff->window)

+    {

+      winDebug ("winProcSetSelectionOwner - No window, returning.\n");

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  /* Abort if invalid selection */

+  if (!ValidAtom (stuff->selection))

+    {

+      winDebug ("winProcSetSelectionOwner - Found BadAtom, aborting.\n");

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  /* Cast Window to Drawable */

+  pDrawable = (DrawablePtr) pWindow;

+  

+  /* Abort if clipboard manager is owning the selection */

+  if (pDrawable->id == g_iClipboardWindow)

+    {

+      winDebug ("winProcSetSelectionOwner - We changed ownership, "

+               "aborting.\n");

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  /* Abort if root window is taking ownership */

+  if (pDrawable->id == 0)

+    {

+      winDebug ("winProcSetSelectionOwner - Root window taking ownership, "

+	      "aborting\n");

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  /* Access the Windows clipboard */

+  if (!OpenClipboard (g_hwndClipboard))

+    {

+      ErrorF ("winProcSetSelectionOwner - OpenClipboard () failed: %08x, hwnd: %08x\n",

+	      (int) GetLastError (),g_hwndClipboard);

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  /* Take ownership of the Windows clipboard */

+  if (!EmptyClipboard ())

+    {

+      ErrorF ("winProcSetSelectionOwner - EmptyClipboard () failed: %08x\n",

+	      (int) GetLastError ());

+      CloseClipboard ();

+      goto winProcSetSelectionOwner_Done;

+    }

+

+  winDebug("winProcSetSelectionOwner - SetClipboardData NULL\n");

+

+  /* Advertise Unicode if we support it */

+  if (g_fUnicodeSupport)

+    SetClipboardData (CF_UNICODETEXT, NULL);

+

+  /* Always advertise regular text */

+  SetClipboardData (CF_TEXT, NULL);

+

+  /* Save handle to last owned selection */

+  g_atomLastOwnedSelection = stuff->selection;

+

+  /* Release the clipboard */

+  if (!CloseClipboard ())

+    {

+      ErrorF ("winProcSetSelectionOwner - CloseClipboard () failed: "

+	      "%08x\n",

+	      (int) GetLastError ());

+      goto winProcSetSelectionOwner_Done;

+    }

+

+winProcSetSelectionOwner_Done:

+  return (*winProcSetSelectionOwnerOrig) (client);

+}