kbd-state: don't block auto-repeat events

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20190220100235.20914-1-kraxel@redhat.com

1 files changed, 10 insertions, 6 deletions

diff --git a/ui/kbd-state.c b/ui/kbd-state.c
index ac14add70e..f3ab2d7a66 100644
--- a/ui/kbd-state.c
+++ b/ui/kbd-state.c
@@ -42,14 +42,18 @@ void qkbd_state_key_event(QKbdState *kbd, QKeyCode qcode, bool down)
 {
     bool state = test_bit(qcode, kbd->keys);
 
-    if (state == down) {
+    if (down == false  /* got key-up event   */ &&
+        state == false /* key is not pressed */) {
         /*
-         * Filter out events which don't change the keyboard state.
+         * Filter out suspicious key-up events.
          *
-         * Most notably this allows to simply send along all key-up
-         * events, and this function will filter out everything where
-         * the corresponding key-down event wasn't send to the guest,
-         * for example due to being a host hotkey.
+         * This allows simply sending along all key-up events, and
+         * this function will filter out everything where the
+         * corresponding key-down event wasn't sent to the guest, for
+         * example due to being a host hotkey.
+         *
+         * Note that key-down events on already pressed keys are *not*
+         * suspicious, those are keyboard autorepeat events.
          */
         return;
     }