langchain/langchain/tools/playwright/click.py
Zander Chase a46f1d830e
Synchronous Browser (#3745)
Split out sync methods in playwright
2023-04-28 17:09:00 -07:00

42 lines
1.4 KiB
Python

from __future__ import annotations
from typing import Type
from pydantic import BaseModel, Field
from langchain.tools.playwright.base import BaseBrowserTool
from langchain.tools.playwright.utils import (
aget_current_page,
get_current_page,
)
class ClickToolInput(BaseModel):
"""Input for ClickTool."""
selector: str = Field(..., description="CSS selector for the element to click")
class ClickTool(BaseBrowserTool):
name: str = "click_element"
description: str = "Click on an element with the given CSS selector"
args_schema: Type[BaseModel] = ClickToolInput
def _run(self, selector: str) -> str:
"""Use the tool."""
if self.sync_browser is None:
raise ValueError(f"Synchronous browser not provided to {self.name}")
page = get_current_page(self.sync_browser)
# Navigate to the desired webpage before using this tool
page.click(selector)
return f"Clicked element '{selector}'"
async def _arun(self, selector: str) -> str:
"""Use the tool."""
if self.async_browser is None:
raise ValueError(f"Asynchronous browser not provided to {self.name}")
page = await aget_current_page(self.async_browser)
# Navigate to the desired webpage before using this tool
await page.click(selector)
return f"Clicked element '{selector}'"