initial implementation of move block to window (#77)

frontend/util/layoututil.ts

@@ -0,0 +1,18 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+import { LayoutTreeState } from "@/faraday/index";
+
+function findLeafIdFromBlockId(layoutTree: LayoutTreeState<TabLayoutData>, blockId: string): string {
+    if (layoutTree?.leafs == null) {
+        return null;
+    }
+    for (let leaf of layoutTree.leafs) {
+        if (leaf.data.blockId == blockId) {
+            return leaf.id;
+        }
+    }
+    return null;
+}
+
+export { findLeafIdFromBlockId };