Code structure

lib/entity_widgets/state/button_state.dart

@@ -0,0 +1,24 @@
+part of '../../main.dart';
+
+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),
+      ),
+    );
+  }
+}