Add missing file

src/eterna/ui/ContextMenuDialog.ts

@@ -0,0 +1,30 @@
+import {Point} from 'pixi.js';
+import ContextMenu from './ContextMenu';
+import Dialog from './Dialog';
+
+export default class ContextMenuDialog extends Dialog<void> {
+    constructor(menu: ContextMenu, menuLoc: Point) {
+        super();
+        this._menu = menu;
+        this._menuLoc = menuLoc;
+    }
+
+    protected added(): void {
+        super.added();
+        this.addObject(this._menu, this.container);
+
+        this._menu.display.position.copyFrom(this._menuLoc);
+        this._menu.menuItemSelected.connect(() => this.close());
+    }
+
+    protected onBGClicked(): void {
+        this.close();
+    }
+
+    protected get bgAlpha(): number {
+        return 0;
+    }
+
+    private readonly _menu: ContextMenu;
+    private readonly _menuLoc: Point;
+}