Add API to send visibiliy actions to widgets

src/WidgetMessaging.js

@@ -94,6 +94,16 @@ export default class WidgetMessaging {
             });
     }
 
+    sendVisibility(visible) {
+        return this.messageToWidget({
+            api: OUTBOUND_API_NAME,
+            action: "visibility",
+            visible,
+        })
+        .catch((error) => {
+            console.error("Failed to send visibility: ", error);
+        });
+    }
 
     start() {
         this.fromWidget.addEndpoint(this.widgetId, this.widgetUrl);

src/components/views/elements/AppTile.js

@@ -389,6 +389,10 @@ export default class AppTile extends React.Component {
         }).catch((err) => {
             console.log(`Failed to get capabilities for widget type ${this.props.type}`, this.props.id, err);
         });
+
+        // Allow parents to access widget messaging
+        if (this.props.collectWidgetMessaging) this.props.collectWidgetMessaging(this.widgetMessaging);
+
         this.setState({loading: false});
     }