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Diffstat (limited to 'xorg-server/Xi/xipassivegrab.c')
-rw-r--r--xorg-server/Xi/xipassivegrab.c313
1 files changed, 313 insertions, 0 deletions
diff --git a/xorg-server/Xi/xipassivegrab.c b/xorg-server/Xi/xipassivegrab.c
new file mode 100644
index 000000000..41a56b14e
--- /dev/null
+++ b/xorg-server/Xi/xipassivegrab.c
@@ -0,0 +1,313 @@
+/*
+ * 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 "swaprep.h"
+
+#include "exglobals.h" /* BadDevice */
+#include "exevents.h"
+#include "xipassivegrab.h"
+#include "dixgrabs.h"
+
+int
+SProcXIPassiveGrabDevice(ClientPtr client)
+{
+ int i;
+ char n;
+ xXIModifierInfo *mods;
+
+ REQUEST(xXIPassiveGrabDeviceReq);
+
+ swaps(&stuff->length, n);
+ swaps(&stuff->deviceid, n);
+ swapl(&stuff->grab_window, n);
+ swapl(&stuff->cursor, n);
+ swapl(&stuff->time, n);
+ swapl(&stuff->detail, n);
+ swaps(&stuff->mask_len, n);
+ swaps(&stuff->num_modifiers, n);
+
+ mods = (xXIModifierInfo*)&stuff[1];
+
+ for (i = 0; i < stuff->num_modifiers; i++, mods++)
+ {
+ swapl(&mods->base_mods, n);
+ swapl(&mods->latched_mods, n);
+ swapl(&mods->locked_mods, n);
+ }
+
+ return ProcXIPassiveGrabDevice(client);
+}
+
+int
+ProcXIPassiveGrabDevice(ClientPtr client)
+{
+ DeviceIntPtr dev, mod_dev;
+ xXIPassiveGrabDeviceReply rep;
+ int i, ret = Success;
+ uint8_t status;
+ uint32_t *modifiers;
+ xXIGrabModifierInfo *modifiers_failed;
+ GrabMask mask;
+ GrabParameters param;
+ void *tmp;
+ int mask_len;
+
+ REQUEST(xXIPassiveGrabDeviceReq);
+ REQUEST_AT_LEAST_SIZE(xXIPassiveGrabDeviceReq);
+
+ if (stuff->deviceid == XIAllDevices)
+ dev = inputInfo.all_devices;
+ else if (stuff->deviceid == XIAllMasterDevices)
+ dev = inputInfo.all_master_devices;
+ else
+ {
+ ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+ if (ret != Success)
+ return ret;
+ }
+
+ if (stuff->grab_type != XIGrabtypeButton &&
+ stuff->grab_type != XIGrabtypeKeycode &&
+ stuff->grab_type != XIGrabtypeEnter &&
+ stuff->grab_type != XIGrabtypeFocusIn)
+ {
+ client->errorValue = stuff->grab_type;
+ return BadValue;
+ }
+
+ if ((stuff->grab_type == XIGrabtypeEnter ||
+ stuff->grab_type == XIGrabtypeFocusIn) && stuff->detail != 0)
+ {
+ client->errorValue = stuff->detail;
+ return BadValue;
+ }
+
+ 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[stuff->deviceid], &stuff[1], mask_len * 4);
+
+ rep.repType = X_Reply;
+ rep.RepType = X_XIPassiveGrabDevice;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.num_modifiers = 0;
+
+ memset(&param, 0, sizeof(param));
+ param.grabtype = GRABTYPE_XI2;
+ param.ownerEvents = stuff->owner_events;
+ param.this_device_mode = stuff->grab_mode;
+ param.other_devices_mode = stuff->paired_device_mode;
+ param.grabWindow = stuff->grab_window;
+ param.cursor = stuff->cursor;
+
+ if (stuff->cursor != None)
+ {
+ status = dixLookupResourceByType(&tmp, stuff->cursor,
+ RT_CURSOR, client, DixUseAccess);
+ if (status != Success)
+ {
+ client->errorValue = stuff->cursor;
+ return (status == BadValue) ? BadCursor : status;
+ }
+ }
+
+ status = dixLookupWindow((WindowPtr*)&tmp, stuff->grab_window, client, DixSetAttrAccess);
+ if (status != Success)
+ return status;
+
+ status = CheckGrabValues(client, &param);
+
+ modifiers = (uint32_t*)&stuff[1] + stuff->mask_len;
+ modifiers_failed = xcalloc(stuff->num_modifiers, sizeof(xXIGrabModifierInfo));
+ if (!modifiers_failed)
+ return BadAlloc;
+
+ if (!IsMaster(dev) && dev->u.master)
+ mod_dev = GetMaster(dev, MASTER_KEYBOARD);
+ else
+ mod_dev = dev;
+
+ for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+ {
+ param.modifiers = *modifiers;
+ switch(stuff->grab_type)
+ {
+ case XIGrabtypeButton:
+ status = GrabButton(client, dev, mod_dev, stuff->detail,
+ &param, GRABTYPE_XI2, &mask);
+ break;
+ case XIGrabtypeKeycode:
+ status = GrabKey(client, dev, mod_dev, stuff->detail,
+ &param, GRABTYPE_XI2, &mask);
+ break;
+ case XIGrabtypeEnter:
+ case XIGrabtypeFocusIn:
+ status = GrabWindow(client, dev, stuff->grab_type,
+ &param, &mask);
+ break;
+ }
+
+ if (status != GrabSuccess)
+ {
+ xXIGrabModifierInfo *info = modifiers_failed + rep.num_modifiers;
+
+ info->status = status;
+ info->modifiers = *modifiers;
+ rep.num_modifiers++;
+ rep.length++;
+ }
+ }
+
+ WriteReplyToClient(client, sizeof(rep), &rep);
+ if (rep.num_modifiers)
+ {
+ client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+ WriteSwappedDataToClient(client, rep.num_modifiers * 4, (char*)modifiers_failed);
+ }
+ xfree(modifiers_failed);
+ return ret;
+}
+
+void
+SRepXIPassiveGrabDevice(ClientPtr client, int size,
+ xXIPassiveGrabDeviceReply * rep)
+{
+ char n;
+
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ swaps(&rep->num_modifiers, n);
+
+ WriteToClient(client, size, (char *)rep);
+}
+
+int
+SProcXIPassiveUngrabDevice(ClientPtr client)
+{
+ char n;
+ int i;
+ uint32_t *modifiers;
+
+ REQUEST(xXIPassiveUngrabDeviceReq);
+
+ swaps(&stuff->length, n);
+ swapl(&stuff->grab_window, n);
+ swaps(&stuff->deviceid, n);
+ swapl(&stuff->detail, n);
+ swaps(&stuff->num_modifiers, n);
+
+ modifiers = (uint32_t*)&stuff[1];
+
+ for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+ swapl(modifiers, n);
+
+ return ProcXIPassiveUngrabDevice(client);
+}
+
+int
+ProcXIPassiveUngrabDevice(ClientPtr client)
+{
+ DeviceIntPtr dev, mod_dev;
+ WindowPtr win;
+ GrabRec tempGrab;
+ uint32_t* modifiers;
+ int i, rc;
+
+ REQUEST(xXIPassiveUngrabDeviceReq);
+ REQUEST_AT_LEAST_SIZE(xXIPassiveUngrabDeviceReq);
+
+ rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+ if (rc != Success)
+ return rc;
+
+ if (stuff->grab_type != XIGrabtypeButton &&
+ stuff->grab_type != XIGrabtypeKeycode &&
+ stuff->grab_type != XIGrabtypeEnter &&
+ stuff->grab_type != XIGrabtypeFocusIn)
+ {
+ client->errorValue = stuff->grab_type;
+ return BadValue;
+ }
+
+ if ((stuff->grab_type == XIGrabtypeEnter ||
+ stuff->grab_type == XIGrabtypeFocusIn) && stuff->detail != 0)
+ {
+ client->errorValue = stuff->detail;
+ return BadValue;
+ }
+
+ rc = dixLookupWindow(&win, stuff->grab_window, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!IsMaster(dev) && dev->u.master)
+ mod_dev = GetMaster(dev, MASTER_KEYBOARD);
+ else
+ mod_dev = dev;
+
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.device = dev;
+ tempGrab.window = win;
+ switch(stuff->grab_type)
+ {
+ case XIGrabtypeButton: tempGrab.type = XI_ButtonPress; break;
+ case XIGrabtypeKeycode: tempGrab.type = XI_KeyPress; break;
+ case XIGrabtypeEnter: tempGrab.type = XI_Enter; break;
+ case XIGrabtypeFocusIn: tempGrab.type = XI_FocusIn; break;
+ }
+ tempGrab.grabtype = GRABTYPE_XI2;
+ tempGrab.modifierDevice = mod_dev;
+ tempGrab.modifiersDetail.pMask = NULL;
+ tempGrab.detail.exact = stuff->detail;
+ tempGrab.detail.pMask = NULL;
+
+ modifiers = (uint32_t*)&stuff[1];
+
+ for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
+ {
+ tempGrab.modifiersDetail.exact = *modifiers;
+ DeletePassiveGrabFromList(&tempGrab);
+ }
+
+ return Success;
+}
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