Xi: Adding ChangeDeviceCursor request

1 files changed, 123 insertions, 0 deletions

diff --git a/Xi/chdevcur.c b/Xi/chdevcur.c
new file mode 100644
index 000000000..fc4b0e01d
--- /dev/null
+++ b/Xi/chdevcur.c
@@ -0,0 +1,123 @@
+/*
+
+Copyright 2006 Peter Hutterer <peter@cs.unisa.edu.au>
+
+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 AUTHOR 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 author 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 author.
+
+*/
+
+/***********************************************************************
+ *
+ * Request to change a given device pointer's cursor.
+ *
+ */
+
+#define	 NEED_EVENTS
+#define	 NEED_REPLIES
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>	/* for inputstr.h    */
+#include <X11/Xproto.h>	/* Request macro     */
+#include "inputstr.h"	/* DeviceIntPtr      */
+#include "windowstr.h"	/* window structure  */
+#include "scrnintstr.h"	/* screen structure  */
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include "extnsionst.h"
+#include "extinit.h"	/* LookupDeviceIntRec */
+#include "exevents.h"
+#include "exglobals.h"
+
+#include "chdevcur.h"
+
+/***********************************************************************
+ *
+ * This procedure allows a client to set one pointer's cursor.
+ *
+ */
+
+int
+SProcXChangeDeviceCursor(register ClientPtr client)
+{
+    register char n;
+
+    REQUEST(xChangeDeviceCursorReq);
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xChangeDeviceCursorReq);
+    return (ProcXChangeDeviceCursor(client));
+}
+
+int ProcXChangeDeviceCursor(register ClientPtr client)
+{
+    int err;
+    WindowPtr pWin    = NULL;
+    DeviceIntPtr pDev = NULL;
+    CursorPtr pCursor = NULL;
+
+    REQUEST(xChangeDeviceCursorReq);
+    REQUEST_SIZE_MATCH(xChangeDeviceCursorReq);
+
+    pDev = LookupDeviceIntRec(stuff->deviceid);
+    if (pDev == NULL) {
+        SendErrorToClient(client, IReqCode, X_ChangeDeviceCursor, 0,
+                BadDevice); 
+        return Success;
+    }
+
+    if (stuff->win != None)
+    {
+        err = dixLookupWindow(&pWin, stuff->win, client, DixReadWriteAccess);
+        if (err != Success)
+        {
+            SendErrorToClient(client, IReqCode, X_ChangeDeviceCursor, 
+                    stuff->win, err);
+            return Success;
+        }
+    }
+
+    if (stuff->cursor == None)
+    {
+        if (pWin == WindowTable[pWin->drawable.pScreen->myNum])
+            pCursor = rootCursor;
+        else
+            pCursor = (CursorPtr)None;
+    } 
+    else 
+    {
+        pCursor = (CursorPtr)SecurityLookupIDByType(client, stuff->cursor,
+                                RT_CURSOR, DixReadAccess); 
+        if (!pCursor)
+        {
+            SendErrorToClient(client, IReqCode, X_ChangeDeviceCursor, 
+                    stuff->cursor, BadCursor);
+            return Success;
+        }
+    } 
+
+    ChangeWindowDeviceCursor(pWin, pDev, pCursor);
+
+    return Success;
+}
+