Ignore motion event when button is pressed.

eek/eek-clutter-key-actor.c

@@ -52,6 +52,7 @@ struct _EekClutterKeyActorPrivate
     EekClutterDrawingContext *context;
     EekKey *key;
     ClutterActor *texture;
+    gboolean is_pressed;
 };
 
 static ClutterActor *get_texture          (EekClutterKeyActor *actor);
@@ -195,8 +196,11 @@ on_button_press_event (ClutterActor *actor,
     EekClutterKeyActorPrivate *priv =
         EEK_CLUTTER_KEY_ACTOR_GET_PRIVATE(actor);
 
+    if (!priv->is_pressed) {
+        priv->is_pressed = TRUE;
         /* priv->key will send back PRESSED event of actor. */
         g_signal_emit_by_name (priv->key, "pressed");
+    }
 }
 
 static void
@@ -207,8 +211,27 @@ on_button_release_event (ClutterActor *actor,
     EekClutterKeyActorPrivate *priv =
         EEK_CLUTTER_KEY_ACTOR_GET_PRIVATE(actor);
 
+    if (priv->is_pressed) {
+        priv->is_pressed = FALSE;
         /* priv->key will send back RELEASED event of actor. */
         g_signal_emit_by_name (priv->key, "released");
+    }
+}
+
+static gboolean
+on_leave_event (ClutterActor *actor,
+                ClutterEvent *event,
+                gpointer      user_data)
+{
+    EekClutterKeyActorPrivate *priv =
+        EEK_CLUTTER_KEY_ACTOR_GET_PRIVATE(actor);
+
+    if (priv->is_pressed) {
+        priv->is_pressed = FALSE;
+        /* priv->key will send back RELEASED event of actor. */
+        g_signal_emit_by_name (priv->key, "released");
+    }
+    return FALSE;
 }
 
 static void
@@ -221,10 +244,13 @@ eek_clutter_key_actor_init (EekClutterKeyActor *self)
     priv->texture = NULL;
 
     clutter_actor_set_reactive (CLUTTER_ACTOR(self), TRUE);
+
     g_signal_connect (self, "button-press-event",
                       G_CALLBACK (on_button_press_event), NULL);
     g_signal_connect (self, "button-release-event",
                       G_CALLBACK (on_button_release_event), NULL);
+    g_signal_connect (self, "leave-event",
+                      G_CALLBACK (on_leave_event), NULL);
 }
 
 ClutterActor *

eek/eek-gtk-keyboard.c

@@ -59,6 +59,8 @@ struct _EekGtkKeyboardPrivate
     PangoFontDescription *fonts[EEK_KEYSYM_CATEGORY_LAST];
 
     gdouble scale;
+
+    EekKey *key;
 };
 
 static void prepare_keyboard_pixmap (EekGtkKeyboard *keyboard);
@@ -155,6 +157,7 @@ eek_gtk_keyboard_init (EekGtkKeyboard *self)
                                g_object_unref);
     memset (priv->fonts, 0, sizeof priv->fonts);
     priv->scale = 1.0;
+    priv->key = NULL;
 }
 
 /**
@@ -434,12 +437,22 @@ on_button_event (GtkWidget      *widget,
         if (key)
             switch (event->type) {
             case GDK_BUTTON_PRESS:
+                if (priv->key == key)
+                    return FALSE;
+                if (priv->key) {
+                    key_shrink (EEK_GTK_KEYBOARD(keyboard), EEK_KEY(priv->key));
+                    g_signal_emit_by_name (keyboard, "key-released", priv->key);
+                }
                 key_enlarge (EEK_GTK_KEYBOARD(keyboard), EEK_KEY(key));
                 g_signal_emit_by_name (keyboard, "key-pressed", key);
+                priv->key = key;
                 return TRUE;
             case GDK_BUTTON_RELEASE:
-                key_shrink (EEK_GTK_KEYBOARD(keyboard), EEK_KEY(key));
+                if (!priv->key)
-                g_signal_emit_by_name (keyboard, "key-released", key);
+                    return FALSE;
+                key_shrink (EEK_GTK_KEYBOARD(keyboard), EEK_KEY(priv->key));
+                g_signal_emit_by_name (keyboard, "key-released", priv->key);
+                priv->key = NULL;
                 return TRUE;
             default:
                 return FALSE;
@@ -447,6 +460,7 @@ on_button_event (GtkWidget      *widget,
     }
     return FALSE;
 }
+
 static void
 on_size_allocate (GtkWidget     *widget,
                   GtkAllocation *allocation,
@@ -469,6 +483,7 @@ on_size_allocate (GtkWidget     *widget,
         allocation->width / bounds.width :
         allocation->height / bounds.height;
 }
+
 GtkWidget *
 eek_gtk_keyboard_get_widget (EekGtkKeyboard *keyboard)
 {