Add XIPassiveGrabDevice.

1 files changed, 158 insertions, 0 deletions

diff --git a/src/XIPassiveGrab.c b/src/XIPassiveGrab.c
new file mode 100644
index 0000000..7da164b
--- /dev/null
+++ b/src/XIPassiveGrab.c
@@ -0,0 +1,158 @@
+/*
+ * 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"
+
+static int
+_XIPassiveGrabDevice(Display* dpy, int deviceid, int grabtype, int detail,
+                     Window grab_window, Cursor cursor,
+                     int grab_mode, int paired_device_mode,
+                     Bool owner_events, XIDeviceEventMask *mask,
+                     int num_modifiers, int *modifiers_inout)
+{
+    xXIPassiveGrabDeviceReq *req;
+    xXIPassiveGrabDeviceReply reply;
+    int len = 0;
+    char *buff;
+
+    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
+
+    LockDisplay(dpy);
+    if (_XiCheckExtInit(dpy, Dont_Check, extinfo) == -1)
+	return -1;
+
+    GetReq(XIPassiveGrabDevice, req);
+    req->reqType = extinfo->codes->major_opcode;
+    req->ReqType = X_XIPassiveGrabDevice;
+    req->deviceid = deviceid;
+    req->grab_mode = grab_mode;
+    req->paired_device_mode = paired_device_mode;
+    req->owner_events = owner_events;
+    req->grab_window = grab_window;
+    req->cursor = cursor;
+    req->detail = detail;
+    req->num_modifiers = num_modifiers;
+    req->mask_len = (mask->mask_len + 3)/4;
+    req->grab_type = grabtype;
+
+    len = req->mask_len + num_modifiers;
+    SetReqLen(req, len, len);
+
+    buff = calloc(4, req->mask_len);
+    memcpy(buff, mask->mask, mask->mask_len);
+    Data32(dpy, buff, req->mask_len * 4);
+    Data32(dpy, modifiers_inout, (num_modifiers * 4));
+
+    free(buff);
+
+    if (_XReply(dpy, (xReply *)&reply, 0, xTrue))
+    {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return -1;
+    }
+
+    _XRead(dpy, (char*)modifiers_inout, reply.num_modifiers * 4);
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return reply.num_modifiers;
+}
+
+int
+XIGrabButton(Display* dpy, int deviceid, int button,
+             Window grab_window, Cursor cursor,
+             int grab_mode, int paired_device_mode,
+             Bool owner_events, XIDeviceEventMask *mask,
+             int num_modifiers, int *modifiers_inout)
+{
+    return _XIPassiveGrabDevice(dpy, deviceid, GrabtypeButton, button,
+                                grab_window, cursor, grab_mode,
+                                paired_device_mode, owner_events, mask,
+                                num_modifiers, modifiers_inout);
+}
+
+int
+XIGrabKeysym(Display* dpy, int deviceid, int keysym,
+             Window grab_window, int grab_mode, int paired_device_mode,
+             Bool owner_events, XIDeviceEventMask *mask,
+             int num_modifiers, int *modifiers_inout)
+{
+    return _XIPassiveGrabDevice(dpy, deviceid, GrabtypeKeysym, keysym,
+                                grab_window, None, grab_mode, paired_device_mode,
+                                owner_events, mask, num_modifiers,
+                                modifiers_inout);
+}
+
+static int
+_XIPassiveUngrabDevice(Display* dpy, int deviceid, int grabtype, int detail,
+                       Window grab_window, int num_modifiers, int *modifiers)
+{
+    xXIPassiveUngrabDeviceReq *req;
+
+    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
+
+    LockDisplay(dpy);
+    if (_XiCheckExtInit(dpy, Dont_Check, extinfo) == -1)
+	return -1;
+
+    GetReq(XIPassiveUngrabDevice, req);
+    req->reqType = extinfo->codes->major_opcode;
+    req->ReqType = X_XIPassiveUngrabDevice;
+    req->deviceid = deviceid;
+    req->grab_window = grab_window;
+    req->detail = detail;
+    req->num_modifiers = num_modifiers;
+    req->grab_type = grabtype;
+
+    SetReqLen(req, num_modifiers, num_modifiers);
+    Data32(dpy, modifiers, (num_modifiers * 4));
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return Success;
+}
+
+int
+XIUngrabButton(Display* display, int deviceid, int button,Window grab_window,
+               int num_modifiers, int *modifiers)
+{
+    return _XIPassiveUngrabDevice(display, deviceid, GrabtypeButton, button,
+                                  grab_window, num_modifiers, modifiers);
+}
+
+int
+XIUngrabKeysym(Display* display, int deviceid, int keysym, Window grab_window,
+               int num_modifiers, int *modifiers)
+{
+    return _XIPassiveUngrabDevice(display, deviceid, GrabtypeKeysym, keysym,
+                                  grab_window, num_modifiers, modifiers);
+}
+
+