svn merge https://vcxsrv.svn.sourceforge.net/svnroot/vcxsrv/branches/released .

1 files changed, 161 insertions, 0 deletions

diff --git a/xorg-server/Xi/xigrabdev.c b/xorg-server/Xi/xigrabdev.c
new file mode 100644
index 000000000..24ededcb1
--- /dev/null
+++ b/xorg-server/Xi/xigrabdev.c
@@ -0,0 +1,161 @@
+/*
+ * 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.
+ *
+ * Author: Peter Hutterer
+ */
+
+/***********************************************************************
+ *
+ * Request to grab or ungrab input device.
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h"	/* DeviceIntPtr      */
+#include "windowstr.h"	/* window structure  */
+#include <X11/extensions/XI2.h>
+#include <X11/extensions/XI2proto.h>
+
+#include "exglobals.h" /* BadDevice */
+#include "exevents.h"
+#include "xigrabdev.h"
+
+int
+SProcXIGrabDevice(ClientPtr client)
+{
+    char n;
+
+    REQUEST(xXIGrabDeviceReq);
+
+    swaps(&stuff->length, n);
+    swaps(&stuff->deviceid, n);
+    swapl(&stuff->grab_window, n);
+    swapl(&stuff->cursor, n);
+    swapl(&stuff->time, n);
+    swaps(&stuff->mask_len, n);
+
+    return ProcXIGrabDevice(client);
+}
+
+int
+ProcXIGrabDevice(ClientPtr client)
+{
+    DeviceIntPtr dev;
+    xXIGrabDeviceReply rep;
+    int ret = Success;
+    uint8_t status;
+    GrabMask mask;
+    int mask_len;
+
+    REQUEST(xXIGrabDeviceReq);
+    REQUEST_AT_LEAST_SIZE(xXIGrabDeviceReq);
+
+    ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+    if (ret != Success)
+	return ret;
+
+    if (!IsMaster(dev))
+        stuff->paired_device_mode = GrabModeAsync;
+
+    if (XICheckInvalidMaskBits((unsigned char*)&stuff[1],
+                               stuff->mask_len * 4) != Success)
+        return BadValue;
+
+    mask_len = min(sizeof(mask.xi2mask[stuff->deviceid]), stuff->mask_len * 4);
+    memset(mask.xi2mask, 0, sizeof(mask.xi2mask));
+    memcpy(mask.xi2mask, (char*)&stuff[1], mask_len);
+
+    ret = GrabDevice(client, dev, stuff->grab_mode,
+                     stuff->paired_device_mode,
+                     stuff->grab_window,
+                     stuff->owner_events,
+                     stuff->time,
+                     &mask,
+                     GRABTYPE_XI2,
+                     stuff->cursor,
+                     None /* confineTo */,
+                     &status);
+
+    if (ret != Success)
+        return ret;
+
+    rep.repType = X_Reply;
+    rep.RepType = X_XIGrabDevice;
+    rep.length = 0;
+    rep.sequenceNumber = client->sequence;
+    rep.status = status;
+
+
+    WriteReplyToClient(client, sizeof(rep), &rep);
+    return ret;
+}
+
+int
+SProcXIUngrabDevice(ClientPtr client)
+{
+    char n;
+
+    REQUEST(xXIUngrabDeviceReq);
+
+    swaps(&stuff->length, n);
+    swaps(&stuff->deviceid, n);
+    swapl(&stuff->time, n);
+
+    return ProcXIUngrabDevice(client);
+}
+
+int
+ProcXIUngrabDevice(ClientPtr client)
+{
+    DeviceIntPtr dev;
+    GrabPtr grab;
+    int ret = Success;
+    TimeStamp time;
+
+    REQUEST(xXIUngrabDeviceReq);
+
+    ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
+    if (ret != Success)
+	return ret;
+
+    grab = dev->deviceGrab.grab;
+
+    time = ClientTimeToServerTime(stuff->time);
+    if ((CompareTimeStamps(time, currentTime) != LATER) &&
+	(CompareTimeStamps(time, dev->deviceGrab.grabTime) != EARLIER) &&
+	(grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_XI2)
+	(*dev->deviceGrab.DeactivateGrab) (dev);
+
+    return Success;
+}
+
+void SRepXIGrabDevice(ClientPtr client, int size, xXIGrabDeviceReply * rep)
+{
+    char n;
+
+    swaps(&rep->sequenceNumber, n);
+    swapl(&rep->length, n);
+    WriteToClient(client, size, (char *)rep);
+}