Add previous and next container to ISetContainerListRequest

src/Components/Editor/Actions/ContextMenuActions.ts

@@ -32,8 +32,25 @@ export function GetAction(
     }
 
     /* eslint-disable @typescript-eslint/naming-convention */
+    let prev;
+    let next;
+    if (container.parent !== undefined &&
+      container.parent !== null &&
+      container.parent.children.length > 1
+    ) {
+      const index = container.parent.children.indexOf(container);
+      if (index > 0) {
+        prev = container.parent.children[index - 1];
+      }
+      if (index < container.parent.children.length - 1) {
+        next = container.parent.children[index + 1];
+      }
+    }
+
     const request: ISetContainerListRequest = {
       Container: container,
+      PreviousContainer: prev,
+      NextContainer: next,
       Action: action.Action,
       ApplicationState: currentState
     };

src/Interfaces/ISetContainerListRequest.ts

@@ -9,6 +9,12 @@ export interface ISetContainerListRequest {
   /** Selected container */
   Container: IContainerModel
 
+  /** The previous sibling container */
+  PreviousContainer: IContainerModel | undefined
+
+  /** The next sibling container */
+  NextContainer: IContainerModel | undefined
+
   /** Current application state */
   ApplicationState: IHistoryState
 }