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Add ungrab support to ExtendedGrabDeviceRequest handling.

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Polish the code a bit.
This commit is contained in:
Peter Hutterer
2007-05-14 18:12:56 +09:30
parent 5c680e9493
commit 81fc6a128b
3 changed files with 93 additions and 87 deletions
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49
Xi/extgrbdev.c
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@@ -45,12 +45,15 @@ from the author.
#include "scrnintstr.h" /* screen structure */
#include <X11/extensions/XI.h>
#include <X11/extensions/XIproto.h>
#include <X11/extensions/Xge.h>
#include "gestr.h"
#include "extnsionst.h"
#include "extinit.h" /* LookupDeviceIntRec */
#include "exevents.h"
#include "exglobals.h"
#include "grabdev.h" /* CreateMaskFromList */
#include "extgrbdev.h"
int
@@ -68,9 +71,8 @@ SProcXExtendedGrabDevice(ClientPtr client)
swapl(&stuff->time, n);
swapl(&stuff->confine_to, n);
swapl(&stuff->cursor, n);
swaps(&stuff->event_mask, n);
swaps(&stuff->event_count, n);
swaps(&stuff->ge_event_count, n);
swaps(&stuff->generic_event_count, n);
p = (long *)&stuff[1];
for (i = 0; i < stuff->event_count; i++) {
@@ -78,7 +80,7 @@ SProcXExtendedGrabDevice(ClientPtr client)
p++;
}
for (i = 0; i < stuff->ge_event_count; i++) {
for (i = 0; i < stuff->generic_event_count; i++) {
p++; /* first 4 bytes are extension type and padding */
swapl(p, n);
p++;
@@ -93,7 +95,7 @@ ProcXExtendedGrabDevice(ClientPtr client)
{
xExtendedGrabDeviceReply rep;
DeviceIntPtr dev;
int err,
int err = Success,
errval = 0,
i;
WindowPtr grab_window,
@@ -101,14 +103,25 @@ ProcXExtendedGrabDevice(ClientPtr client)
CursorPtr cursor = NULL;
struct tmask tmp[EMASKSIZE];
TimeStamp time;
XgeEventMask* xgeMask;
XGenericEventMask* xgeMask;
GenericMaskPtr gemasks = NULL;
REQUEST(xExtendedGrabDeviceReq);
REQUEST_AT_LEAST_SIZE(xExtendedGrabDeviceReq);
if (stuff->length != (sizeof(xExtendedGrabDeviceReq) >> 2) +
stuff->event_count + 2 * stuff->ge_event_count)
if (stuff->ungrab)
{
REQUEST_SIZE_MATCH(xExtendedGrabDeviceReq);
}
rep.repType = X_Reply;
rep.RepType = X_ExtendedGrabDevice;
rep.sequenceNumber = client->sequence;
rep.length = 0;
if (!stuff->ungrab && /* other fields are undefined for ungrab */
(stuff->length != (sizeof(xExtendedGrabDeviceReq) >> 2) +
stuff->event_count + 2 * stuff->generic_event_count))
{
errval = 0;
err = BadLength;
@@ -122,6 +135,13 @@ ProcXExtendedGrabDevice(ClientPtr client)
goto cleanup;
}
if (stuff->ungrab)
{
ExtUngrabDevice(client, dev);
goto cleanup;
}
err = dixLookupWindow(&grab_window,
stuff->grab_window,
client,
@@ -159,11 +179,6 @@ ProcXExtendedGrabDevice(ClientPtr client)
}
}
rep.repType = X_Reply;
rep.RepType = X_ExtendedGrabDevice;
rep.sequenceNumber = client->sequence;
rep.length = 0;
if (CreateMaskFromList(client,
(XEventClass*)&stuff[1],
stuff->event_count,
@@ -174,10 +189,10 @@ ProcXExtendedGrabDevice(ClientPtr client)
time = ClientTimeToServerTime(stuff->time);
if (stuff->ge_event_count)
if (stuff->generic_event_count)
{
xgeMask =
(XgeEventMask*)(((XEventClass*)&stuff[1]) + stuff->event_count);
(XGenericEventMask*)(((XEventClass*)&stuff[1]) + stuff->event_count);
gemasks = xcalloc(1, sizeof(GenericMaskRec));
gemasks->extension = xgeMask->extension;
@@ -185,7 +200,7 @@ ProcXExtendedGrabDevice(ClientPtr client)
gemasks->next = NULL;
xgeMask++;
for (i = 1; i < stuff->ge_event_count; i++, xgeMask++)
for (i = 1; i < stuff->generic_event_count; i++, xgeMask++)
{
gemasks->next = xcalloc(1, sizeof(GenericMaskRec));
gemasks = gemasks->next;
@@ -195,9 +210,9 @@ ProcXExtendedGrabDevice(ClientPtr client)
}
}
ExtGrabDevice(client, dev, stuff->grabmode, stuff->device_mode,
ExtGrabDevice(client, dev, stuff->device_mode,
grab_window, confineTo, time, stuff->owner_events,
cursor, stuff->event_mask, tmp[stuff->deviceid].mask,
cursor, tmp[stuff->deviceid].mask,
gemasks);
if (err != Success) {