ui: convert key events to QKeyCodes immediately

Always use QKeyCode in the InputKeyEvent struct, by converting key
numbers to QKeyCode at the time the event is created. This allows
the code processing / consuming key events to assume QKeyCode is
used. The only place we accept a key number in the InputKeyEvent
struct is with QMP commands sent by the user.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-id: 20170929101201.21039-6-berrange@redhat.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

ui/input.c

@@ -157,9 +157,16 @@ void qmp_input_send_event(bool has_device, const char *device,
     }
 
     for (e = events; e != NULL; e = e->next) {
-        InputEvent *event = e->value;
-
-        qemu_input_event_send(con, event);
+        InputEvent *evt = e->value;
+
+        if (evt->type == INPUT_EVENT_KIND_KEY &&
+            evt->u.key.data->key->type == KEY_VALUE_KIND_NUMBER) {
+            KeyValue *key = evt->u.key.data->key;
+            QKeyCode code = qemu_input_key_number_to_qcode(key->u.qcode.data);
+            qemu_input_event_send_key_qcode(con, code, evt->u.key.data->down);
+        } else {
+            qemu_input_event_send(con, evt);
+        }
     }
 
     qemu_input_event_sync();
@@ -341,6 +348,11 @@ void qemu_input_event_send_impl(QemuConsole *src, InputEvent *evt)
 
 void qemu_input_event_send(QemuConsole *src, InputEvent *evt)
 {
+    /* Expect all parts of QEMU to send events with QCodes exclusively.
+     * Key numbers are only supported as end-user input via QMP */
+    assert(!(evt->type == INPUT_EVENT_KIND_KEY &&
+             evt->u.key.data->key->type == KEY_VALUE_KIND_NUMBER));
+
     if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
         return;
     }
@@ -400,10 +412,8 @@ void qemu_input_event_send_key(QemuConsole *src, KeyValue *key, bool down)
 
 void qemu_input_event_send_key_number(QemuConsole *src, int num, bool down)
 {
-    KeyValue *key = g_new0(KeyValue, 1);
-    key->type = KEY_VALUE_KIND_NUMBER;
-    key->u.number.data = num;
-    qemu_input_event_send_key(src, key, down);
+    QKeyCode code = qemu_input_key_number_to_qcode(num);
+    qemu_input_event_send_key_qcode(src, code, down);
 }
 
 void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down)