Resolves #310 Add assumed state for locks

lib/entity_class/lock_entity.class.dart

@@ -7,6 +7,15 @@ class LockEntity extends Entity {
 
   @override
   Widget _buildStatePart(BuildContext context) {
-    return LockStateWidget();
+    return LockStateWidget(
+      assumedState: false,
+    );
+  }
+
+  @override
+  Widget _buildStatePartForPage(BuildContext context) {
+    return LockStateWidget(
+      assumedState: true,
+    );
   }
 }

lib/entity_widgets/state/lock_state.dart

@@ -2,6 +2,10 @@ part of '../../main.dart';
 
 class LockStateWidget extends StatelessWidget {
 
+  final bool assumedState;
+
+  const LockStateWidget({Key key, this.assumedState: false}) : super(key: key);
+
   void _lock(Entity entity) {
     eventBus.fire(new ServiceCallEvent("lock", "lock", entity.entityId, null));
   }
@@ -14,19 +18,49 @@ class LockStateWidget extends StatelessWidget {
   Widget build(BuildContext context) {
     final entityModel = EntityModel.of(context);
     final LockEntity entity = entityModel.entityWrapper.entity;
-    return SizedBox(
+    if (assumedState) {
-      height: 34.0,
+      return Row(
-      child: FlatButton(
+        mainAxisSize: MainAxisSize.min,
-        onPressed: (() {
+        children: <Widget>[
-          entity.isLocked ? _unlock(entity) : _lock(entity);
+        SizedBox(
-        }),
+        height: 34.0,
-        child: Text(
+        child: FlatButton(
-          entity.isLocked ? "UNLOCK" : "LOCK",
+          onPressed: () => _unlock(entity),
-          textAlign: TextAlign.right,
+          child: Text("UNLOCK",
-          style:
+              textAlign: TextAlign.right,
-          new TextStyle(fontSize: Sizes.stateFontSize, color: Colors.blue),
+              style:
+              new TextStyle(fontSize: Sizes.stateFontSize, color: Colors.blue),
+            ),
+          )
         ),
-      )
+        SizedBox(
-    );
+            height: 34.0,
+            child: FlatButton(
+              onPressed: () => _lock(entity),
+              child: Text("LOCK",
+                textAlign: TextAlign.right,
+                style:
+                new TextStyle(fontSize: Sizes.stateFontSize, color: Colors.blue),
+              ),
+            )
+        )
+        ],
+      );
+    } else {
+      return SizedBox(
+          height: 34.0,
+          child: FlatButton(
+            onPressed: (() {
+              entity.isLocked ? _unlock(entity) : _lock(entity);
+            }),
+            child: Text(
+              entity.isLocked ? "UNLOCK" : "LOCK",
+              textAlign: TextAlign.right,
+              style:
+              new TextStyle(fontSize: Sizes.stateFontSize, color: Colors.blue),
+            ),
+          )
+      );
+    }
   }
 }