WIP #133 Lights

lib/entity_class/stateless_widgets.dart

@@ -653,6 +653,29 @@ class CoverEntityTiltControlButtons extends StatelessWidget {
   }
 }
 
+class ButtonStateWidget extends StatelessWidget {
+
+  void _setNewState(Entity entity) {
+    eventBus.fire(new ServiceCallEvent(entity.domain, "turn_on", entity.entityId, null));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final entityModel = EntityModel.of(context);
+    return FlatButton(
+      onPressed: (() {
+        _setNewState(entityModel.entity);
+      }),
+      child: Text(
+        "EXECUTE",
+        textAlign: TextAlign.right,
+        style:
+        new TextStyle(fontSize: Entity.stateFontSize, color: Colors.blue),
+      ),
+    );
+  }
+}
+
 class ModeSelectorWidget extends StatelessWidget {
 
   final String caption;