Bool
CopyGrab(GrabPtr dst, const GrabPtr src)
{
Mask *mdetails_mask = NULL;
Mask *details_mask = NULL;
XI2Mask *xi2mask;
if (src->cursor)
src->cursor->refcnt++;
if (src->modifiersDetail.pMask) {
int len = MasksPerDetailMask * sizeof(Mask);
mdetails_mask = malloc(len);
if (!mdetails_mask)
return FALSE;
memcpy(mdetails_mask, src->modifiersDetail.pMask, len);
}
if (src->detail.pMask) {
int len = MasksPerDetailMask * sizeof(Mask);
details_mask = malloc(len);
if (!details_mask) {
free(mdetails_mask);
return FALSE;
}
memcpy(details_mask, src->detail.pMask, len);
}
if (!dst->xi2mask) {
xi2mask = xi2mask_new();
if (!xi2mask) {
free(mdetails_mask);
free(details_mask);
return FALSE;
}
}
else {
xi2mask = dst->xi2mask;
xi2mask_zero(xi2mask, -1);
}
*dst = *src;
dst->modifiersDetail.pMask = mdetails_mask;
dst->detail.pMask = details_mask;
dst->xi2mask = xi2mask;
xi2mask_merge(dst->xi2mask, src->xi2mask);
return TRUE;
}
GrabPtr
CreateGrab(
int client,
DeviceIntPtr device,
DeviceIntPtr modDevice,
WindowPtr window,
enum InputLevel grabtype,
GrabMask *mask,
GrabParameters *param,
int type,
KeyCode keybut, /* key or button */
WindowPtr confineTo,
CursorPtr cursor)
{
GrabPtr grab;
grab = AllocGrab();
if (!grab)
return (GrabPtr)NULL;
grab->resource = FakeClientID(client);
grab->device = device;
grab->window = window;
grab->eventMask = mask->core; /* same for XI */
grab->deviceMask = 0;
grab->ownerEvents = param->ownerEvents;
grab->keyboardMode = param->this_device_mode;
grab->pointerMode = param->other_devices_mode;
grab->modifiersDetail.exact = param->modifiers;
grab->modifiersDetail.pMask = NULL;
grab->modifierDevice = modDevice;
grab->type = type;
grab->grabtype = grabtype;
grab->detail.exact = keybut;
grab->detail.pMask = NULL;
grab->confineTo = confineTo;
grab->cursor = cursor;
grab->next = NULL;
if (grabtype == XI2)
xi2mask_merge(grab->xi2mask, mask->xi2mask);
if (cursor)
cursor->refcnt++;
return grab;
}