Add XIGrabDevice

2 files changed, 103 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index a9b1480..21a1498 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -53,6 +53,7 @@ libXi_la_SOURCES = \
 		  XExtInt.c  \
                   XISelEv.c \
 		  XIint.h \
+		  XIGrabDevice.c \
 		  XIQueryVersion.c \
 		  XIQueryDevice.c \
 		  XISetDevFocus.c \
diff --git a/src/XIGrabDevice.c b/src/XIGrabDevice.c
new file mode 100644
index 0000000..f97138c
--- /dev/null
+++ b/src/XIGrabDevice.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ */
+
+#include <stdint.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/XInput2.h>
+#include <X11/extensions/extutil.h>
+#include "XIint.h"
+
+
+Status
+XIGrabDevice(Display* dpy, int deviceid, Window grab_window, Time time,
+             Cursor cursor, int grab_mode, int paired_device_mode,
+             Bool owner_events, XIDeviceEventMask *mask)
+{
+    xXIGrabDeviceReq *req;
+    xXIGrabDeviceReply reply;
+    char* buff;
+    int len;
+
+    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
+    if (_XiCheckExtInit(dpy, Dont_Check, extinfo) == -1)
+	return (NoSuchExtension);
+
+    GetReq(XIGrabDevice, req);
+    req->reqType  = extinfo->codes->major_opcode;
+    req->ReqType  = X_XIGrabDevice;
+    req->deviceid = deviceid;
+    req->grab_window = grab_window;
+    req->time = time;
+    req->grab_mode = grab_mode;
+    req->paired_device_mode = paired_device_mode;
+    req->owner_events = owner_events;
+    req->mask_len = mask->mask_len;
+    req->cursor = cursor;
+
+
+    /* masks.mask_len is in bytes, but we need 4-byte units on the wire,
+     * and they need to be padded with 0 */
+    len = (mask->mask_len + 3) / 4;
+    buff = calloc(1, len);
+    memcpy(buff, mask->mask, mask->mask_len);
+
+    SetReqLen(req, len, len);
+    Data(dpy, buff, len * 4);
+    free(buff);
+
+    if (_XReply(dpy, (xReply *)&reply, 0, xTrue) == 0)
+	reply.status = GrabSuccess;
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+
+    return reply.status;
+}
+
+Status
+XIUngrabDevice(Display* dpy, int deviceid, Time time)
+{
+    xXIUngrabDeviceReq *req;
+
+    XExtDisplayInfo *info = XInput_find_display(dpy);
+
+    LockDisplay(dpy);
+    if (_XiCheckExtInit(dpy, XInput_Initial_Release, info) == -1)
+	return (NoSuchExtension);
+
+    GetReq(XIUngrabDevice, req);
+    req->reqType = info->codes->major_opcode;
+    req->ReqType = X_XIUngrabDevice;
+
+    req->deviceid = deviceid;
+    req->time = time;
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return (Success);
+}
+
+