playwright-mcp/src/tools/dialogs.ts

/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { z } from 'zod';
import { zodToJsonSchema } from 'zod-to-json-schema';

import type { ToolFactory } from './tool';

const handleDialogSchema = z.object({
  accept: z.boolean().describe('Whether to accept the dialog.'),
  promptText: z.string().optional().describe('The text of the prompt in case of a prompt dialog.'),
});

const handleDialog: ToolFactory = captureSnapshot => ({
  capability: 'core',

  schema: {
    name: 'browser_handle_dialog',
    description: 'Handle a dialog',
    inputSchema: zodToJsonSchema(handleDialogSchema),
  },

  handle: async (context, params) => {
    const validatedParams = handleDialogSchema.parse(params);
    const dialogState = context.modalStates().find(state => state.type === 'dialog');
    if (!dialogState)
      throw new Error('No dialog visible');

    if (validatedParams.accept)
      await dialogState.dialog.accept(validatedParams.promptText);
    else
      await dialogState.dialog.dismiss();

    context.clearModalState(dialogState);

    const code = [
      `// <internal code to handle "${dialogState.dialog.type()}" dialog>`,
    ];

    return {
      code,
      captureSnapshot,
      waitForNetwork: false,
    };
  },

  clearsModalState: 'dialog',
});

export default (captureSnapshot: boolean) => [
  handleDialog(captureSnapshot),
];