initial public release.

src/util/regionDeleteUtil.ts

@@ -0,0 +1,36 @@
+type DeleteRegionsCallback = () => boolean;
+
+class RegionDeleteManager {
+  private static instance: RegionDeleteManager;
+  private deleteCallback: DeleteRegionsCallback | null = null;
+
+  private constructor() {}
+
+  static getInstance(): RegionDeleteManager {
+    if (!RegionDeleteManager.instance) {
+      RegionDeleteManager.instance = new RegionDeleteManager();
+    }
+    return RegionDeleteManager.instance;
+  }
+
+  registerDeleteCallback(callback: DeleteRegionsCallback): void {
+    this.deleteCallback = callback;
+    console.log('RegionDeleteManager: Delete callback registered');
+  }
+
+  unregisterDeleteCallback(): void {
+    this.deleteCallback = null;
+    console.log('RegionDeleteManager: Delete callback unregistered');
+  }
+
+  deleteSelectedRegions(): boolean {
+    if (this.deleteCallback) {
+      console.log('RegionDeleteManager: Executing delete callback');
+      return this.deleteCallback();
+    }
+    console.log('RegionDeleteManager: No delete callback registered');
+    return false;
+  }
+}
+
+export const regionDeleteManager = RegionDeleteManager.getInstance();