R6.6 is the Xorg base-lineXORG-MAIN

1 files changed, 252 insertions, 0 deletions

diff --git a/Xi/chgptr.c b/Xi/chgptr.c
new file mode 100644
index 000000000..8c65c6ec2
--- /dev/null
+++ b/Xi/chgptr.c
@@ -0,0 +1,252 @@
+/* $Xorg: chgptr.c,v 1.4 2001/02/09 02:04:33 xorgcvs Exp $ */
+
+/************************************************************
+
+Copyright 1989, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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 THE
+OPEN GROUP 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 Open Group 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 Open Group.
+
+Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+			All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+********************************************************/
+
+/***********************************************************************
+ *
+ * Extension function to change the pointer device.
+ *
+ */
+
+#define	 NEED_EVENTS
+#define	 NEED_REPLIES
+#include "X.h"				/* for inputstr.h    */
+#include "Xproto.h"			/* Request macro     */
+#include "XI.h"
+#include "XIproto.h"
+#include "inputstr.h"			/* DeviceIntPtr	     */
+#include "windowstr.h"			/* window structure  */
+#include "scrnintstr.h"			/* screen structure  */
+
+extern	int 		IReqCode;
+extern	int 		BadDevice;
+extern	int 		ChangeDeviceNotify;
+extern	Mask		ChangeDeviceNotifyMask;
+extern	InputInfo	inputInfo;
+extern	ScreenInfo	screenInfo;
+extern	WindowPtr	*WindowTable;
+extern	void		(* ReplySwapVector[256]) ();
+DeviceIntPtr		LookupDeviceIntRec();
+
+/***********************************************************************
+ *
+ * This procedure is invoked to swap the request bytes if the server and
+ * client have a different byte order.
+ *
+ */
+
+int
+SProcXChangePointerDevice(client)
+    register ClientPtr client;
+    {
+    register char n;
+
+    REQUEST(xChangePointerDeviceReq);
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xChangePointerDeviceReq);
+    return(ProcXChangePointerDevice(client));
+    }
+
+/***********************************************************************
+ *
+ * This procedure changes the device used as the X pointer.
+ *
+ */
+
+ProcXChangePointerDevice (client)
+    register ClientPtr client;
+    {
+    DeviceIntPtr 	xptr = inputInfo.pointer;
+    DeviceIntPtr 	dev;
+    ValuatorClassPtr 	v;
+    xChangePointerDeviceReply	rep;
+    changeDeviceNotify	ev;
+
+    REQUEST(xChangePointerDeviceReq);
+    REQUEST_SIZE_MATCH(xChangePointerDeviceReq);
+
+    rep.repType = X_Reply;
+    rep.RepType = X_ChangePointerDevice;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+
+    dev = LookupDeviceIntRec (stuff->deviceid);
+    if (dev == NULL)
+	{
+	rep.status = -1;
+	SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0, 
+	    BadDevice);
+	return Success;
+	}
+
+    v = dev->valuator;
+    if (v == NULL || v->numAxes < 2 || 
+	stuff->xaxis >= v->numAxes ||
+	stuff->yaxis >= v->numAxes)
+	{
+	rep.status = -1;
+	SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0, BadMatch);
+	return Success;
+	}
+
+    if (((dev->grab) && !SameClient(dev->grab, client)) ||
+        ((xptr->grab) && !SameClient(xptr->grab, client)))
+	rep.status = AlreadyGrabbed;
+    else if ((dev->sync.frozen &&
+	     dev->sync.other && !SameClient(dev->sync.other, client)) ||
+	     (xptr->sync.frozen &&
+	      xptr->sync.other && !SameClient(xptr->sync.other, client)))
+	rep.status = GrabFrozen;
+    else
+	{
+	if (ChangePointerDevice (
+	    xptr, dev, stuff->xaxis, stuff->yaxis) != Success)
+	    {
+	    SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0, 
+		BadDevice);
+	    return Success;
+	    }
+	if (dev->focus)
+	    DeleteFocusClassDeviceStruct(dev);
+	if (!dev->button)
+	    InitButtonClassDeviceStruct (dev, 0, NULL);
+	if (!dev->ptrfeed)
+	   InitPtrFeedbackClassDeviceStruct(dev, (PtrCtrlProcPtr)NoopDDA);
+	RegisterOtherDevice (xptr);
+	RegisterPointerDevice ((DevicePtr)dev);
+
+	ev.type = ChangeDeviceNotify;
+	ev.deviceid = stuff->deviceid;
+	ev.time = currentTime.milliseconds;
+	ev.request = NewPointer;
+
+	SendEventToAllWindows (dev, ChangeDeviceNotifyMask, &ev, 1);
+	SendMappingNotify (MappingPointer, 0, 0, client);
+
+	rep.status = 0;
+	}
+
+    WriteReplyToClient (client, sizeof (xChangePointerDeviceReply), 
+	&rep);
+    return Success;
+    }
+
+DeleteFocusClassDeviceStruct(dev)
+    DeviceIntPtr dev;
+    {
+    xfree(dev->focus->trace);
+    xfree(dev->focus);
+    dev->focus = NULL;
+    }
+
+/***********************************************************************
+ *
+ * Send an event to interested clients in all windows on all screens.
+ *
+ */
+
+SendEventToAllWindows (dev, mask, ev, count)
+    DeviceIntPtr dev;
+    Mask mask;
+    xEvent *ev;
+    int count;
+    {
+    int i;
+    WindowPtr pWin, p1;
+
+    for (i=0; i<screenInfo.numScreens; i++)
+	{
+	pWin = WindowTable[i];
+	(void)DeliverEventsToWindow(pWin, ev, count, mask, NullGrab, dev->id);
+	p1 = pWin->firstChild;
+	FindInterestedChildren (dev, p1, mask, ev, count);
+	}
+    }
+
+/***********************************************************************
+ *
+ * Walk through the window tree, finding all clients that want to know
+ * about the ChangeDeviceNotify Event.
+ *
+ */
+
+FindInterestedChildren (dev, p1, mask, ev, count)
+    DeviceIntPtr	dev;
+    WindowPtr 		p1;
+    Mask		mask;
+    xEvent		*ev;
+    int			count;
+    {
+    WindowPtr p2;
+
+    while (p1)
+        {
+        p2 = p1->firstChild;
+	(void)DeliverEventsToWindow(p1, ev, count, mask, NullGrab, dev->id);
+	FindInterestedChildren (dev, p2, mask, ev, count);
+	p1 = p1->nextSib;
+        }
+    }
+
+/***********************************************************************
+ *
+ * This procedure writes the reply for the XChangePointerDevice 
+ * function, if the client and server have a different byte ordering.
+ *
+ */
+
+SRepXChangePointerDevice (client, size, rep)
+    ClientPtr	client;
+    int		size;
+    xChangePointerDeviceReply	*rep;
+    {
+    register char n;
+
+    swaps(&rep->sequenceNumber, n);
+    swapl(&rep->length, n);
+    WriteToClient(client, size, (char *)rep);
+    }