feat: wire up AskUserTool with dialog (#17411)

packages/cli/src/ui/contexts/AskUserActionsContext.tsx

@@ -0,0 +1,77 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type React from 'react';
+import { createContext, useContext, useMemo } from 'react';
+import type { Question } from '@google/gemini-cli-core';
+
+export interface AskUserState {
+  questions: Question[];
+  correlationId: string;
+}
+
+interface AskUserActionsContextValue {
+  /** Current ask_user request, or null if no dialog should be shown */
+  request: AskUserState | null;
+
+  /** Submit answers - publishes ASK_USER_RESPONSE to message bus */
+  submit: (answers: { [questionIndex: string]: string }) => Promise<void>;
+
+  /** Cancel the dialog - clears request state */
+  cancel: () => void;
+}
+
+const AskUserActionsContext = createContext<AskUserActionsContextValue | null>(
+  null,
+);
+
+export const useAskUserActions = () => {
+  const context = useContext(AskUserActionsContext);
+  if (!context) {
+    throw new Error(
+      'useAskUserActions must be used within an AskUserActionsProvider',
+    );
+  }
+  return context;
+};
+
+interface AskUserActionsProviderProps {
+  children: React.ReactNode;
+  /** Current ask_user request state (managed by AppContainer) */
+  request: AskUserState | null;
+  /** Handler to submit answers */
+  onSubmit: (answers: { [questionIndex: string]: string }) => Promise<void>;
+  /** Handler to cancel the dialog */
+  onCancel: () => void;
+}
+
+/**
+ * Provides ask_user dialog state and actions to child components.
+ *
+ * State is managed by AppContainer (which subscribes to the message bus)
+ * and passed here as props. This follows the same pattern as ToolActionsProvider.
+ */
+export const AskUserActionsProvider: React.FC<AskUserActionsProviderProps> = ({
+  children,
+  request,
+  onSubmit,
+  onCancel,
+}) => {
+  const value = useMemo(
+    () => ({
+      request,
+      submit: onSubmit,
+      cancel: onCancel,
+    }),
+    [request, onSubmit, onCancel],
+  );
+
+  return (
+    <AskUserActionsContext.Provider value={value}>
+      {children}
+    </AskUserActionsContext.Provider>
+  );
+};