fix: delegate multi-line digit selection to visible overlay (#78)

src/main/runtime/overlay-numeric-selection.ts

@@ -0,0 +1,47 @@
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import type { SessionNumericSelectionStartPayload } from '../../types/runtime';
+
+type OverlayNumericSelectionWindow = {
+  isDestroyed: () => boolean;
+  isVisible: () => boolean;
+  isFocused?: () => boolean;
+  setIgnoreMouseEvents: (ignore: boolean, options?: { forward?: boolean }) => void;
+  focus: () => void;
+  webContents: {
+    isFocused?: () => boolean;
+    focus: () => void;
+    send: (channel: string, payload: SessionNumericSelectionStartPayload) => void;
+  };
+};
+
+export function tryBeginVisibleOverlayNumericSelection(options: {
+  actionId: SessionNumericSelectionStartPayload['actionId'];
+  timeoutMs: number;
+  getMainWindow: () => OverlayNumericSelectionWindow | null;
+  getVisibleOverlayVisible: () => boolean;
+}): boolean {
+  if (!options.getVisibleOverlayVisible()) {
+    return false;
+  }
+
+  const mainWindow = options.getMainWindow();
+  if (!mainWindow || mainWindow.isDestroyed() || !mainWindow.isVisible()) {
+    return false;
+  }
+
+  mainWindow.setIgnoreMouseEvents(false);
+  if (typeof mainWindow.isFocused !== 'function' || !mainWindow.isFocused()) {
+    mainWindow.focus();
+  }
+  if (
+    typeof mainWindow.webContents.isFocused !== 'function' ||
+    !mainWindow.webContents.isFocused()
+  ) {
+    mainWindow.webContents.focus();
+  }
+  mainWindow.webContents.send(IPC_CHANNELS.event.sessionNumericSelectionStart, {
+    actionId: options.actionId,
+    timeoutMs: options.timeoutMs,
+  });
+  return true;
+}