[xserver PATCH 2/2] dix: Send KeyPress and KeyRelease events to the XACE_KEY_AVAIL hook

[Andrew Eikum]

While it's documented in the XACE spec, the XACE_KEY_AVAIL hook is
currently never actually invoked by the xserver.

This hook was added in 13c6713c82 (25 Aug 2006), but as the keyboard
processing was moved into XKB, the hook was forgotten and silently
dropped. The code calling this hook was removed by 7af53799c (4 Jan
2009), but it was probably already unused before that.

This patch re-adds support for this hook. The "count" hook parameter is
unused.

Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>
---

Pending approval, updates to the XACE spec documentation for the "count"
parameter, and to warn about duplicate events, will follow.
---
 Xi/exevents.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Xi/exevents.c b/Xi/exevents.c
index 1c586d0..cd33f94 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -1730,6 +1730,18 @@ ProcessDeviceEvent(InternalEvent *ev, DeviceIntPtr device)
         break;
     }
 
+    /* send KeyPress and KeyRelease events to XACE plugins */
+    if (XaceHookIsSet(XACE_KEY_AVAIL) &&
+            (event->type == ET_KeyPress || event->type == ET_KeyRelease)) {
+        xEvent *core;
+        int count;
+
+        if (EventToCore(ev, &core, &count) == Success && count > 0) {
+            XaceHook(XACE_KEY_AVAIL, core, device, 0);
+            free(core);
+        }
+    }
+
     if (DeviceEventCallback && !syncEvents.playingEvents) {
         DeviceEventInfoRec eventinfo;
         SpritePtr pSprite = device->spriteInfo->sprite;
-- 
2.4.2