[PATCH 36/42] Xi: handle grab accept/reject requests

[Peter Hutterer]

Consists mostly of generating an ownership event and processing it.

Co-authored-by: Daniel Stone <daniel at fooishbar.org>
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 Xi/xiallowev.c |   53 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 52 insertions(+), 1 deletions(-)

diff --git a/Xi/xiallowev.c b/Xi/xiallowev.c
index 0d45b36..a4b2f57 100644
--- a/Xi/xiallowev.c
+++ b/Xi/xiallowev.c
@@ -35,6 +35,8 @@
 
 #include "inputstr.h"	/* DeviceIntPtr      */
 #include "windowstr.h"	/* window structure  */
+#include "mi.h"
+#include "eventstr.h"
 #include <X11/extensions/XI2.h>
 #include <X11/extensions/XI2proto.h>
 
@@ -49,10 +51,53 @@ SProcXIAllowEvents(ClientPtr client)
     swaps(&stuff->length);
     swaps(&stuff->deviceid);
     swapl(&stuff->time);
+    /* FIXME swap touchid */
+    /* FIXME swap window */
 
     return ProcXIAllowEvents(client);
 }
 
+static int
+AllowTouch(ClientPtr client, DeviceIntPtr dev, int mode, uint32_t touchid, XID *error)
+{
+    TouchPointInfoPtr ti;
+    int nev, i;
+    InternalEvent *events = InitEventList(GetMaximumEventsNum());
+
+    if (!events)
+        return BadAlloc;
+
+    if (!dev->touch)
+    {
+        *error = dev->id;
+        return BadDevice;
+    }
+
+    /* FIXME window is unhandled */
+
+    ti = TouchFindByClientID(dev, touchid);
+    if (!ti)
+    {
+        *error = touchid;
+        return BadValue;
+    }
+
+    /* FIXME: Allow for early accept */
+    if (ti->num_listeners == 0 || CLIENT_ID(ti->listeners[0].listener) != client->index)
+        return BadAccess;
+
+    nev = GetTouchOwnershipEvents(events, dev, ti, mode, ti->listeners[0].listener, 0);
+    if (nev == 0)
+        return BadAlloc;
+    for (i = 0; i < nev; i++)
+        mieqProcessDeviceEvent(dev, events + i, NULL);
+
+    ProcessInputEvents();
+
+    FreeEventList(events, GetMaximumEventsNum());
+    return Success;
+}
+
 int
 ProcXIAllowEvents(ClientPtr client)
 {
@@ -61,7 +106,7 @@ ProcXIAllowEvents(ClientPtr client)
     int ret = Success;
 
     REQUEST(xXIAllowEventsReq);
-    REQUEST_SIZE_MATCH(xXIAllowEventsReq);
+    /* FIXME: check request length, 12 for XI 2.0+, 20 for XI 2.2+ */
 
     ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
     if (ret != Success)
@@ -91,6 +136,12 @@ ProcXIAllowEvents(ClientPtr client)
         if (IsMaster(dev))
             AllowSome(client, time, dev, THAWED_BOTH);
 	break;
+    case XIRejectTouch:
+    case XIAcceptTouch:
+        ret = AllowTouch(client, dev,
+                         stuff->mode, stuff->touchid,
+                         &client->errorValue);
+        break;
     default:
 	client->errorValue = stuff->mode;
 	ret = BadValue;
-- 
1.7.7.1