scroll_up
Scrolls a webpage up by one viewport height in Chrome during debugging sessions, enabling automated navigation without manual interaction.
Instructions
向上滚动页面一个视口高度
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/browserSession.ts:516-520 (handler)The main handler function for the scroll_up tool. It uses doAction to execute the scrollPage helper with 'up' direction on the current page.
async scrollUp(): Promise<BrowserActionResult> { return this.doAction(async (page) => { await this.scrollPage(page, "up"); }); } - src/index.ts:118-125 (schema)Tool schema definition in the list of tools returned by ListToolsRequestSchema handler, specifying name, description, and empty input schema (no parameters required).
{ name: "scroll_up", description: "向上滚动页面一个视口高度", inputSchema: { type: "object", properties: {}, }, }, - src/index.ts:207-209 (registration)Dispatch/registration in the CallToolRequestSchema switch statement, invoking the browserSession.scrollUp() handler.
case "scroll_up": result = await this.browserSession.scrollUp(); break; - src/browserSession.ts:490-502 (helper)Supporting helper function that performs the actual page scrolling by one viewport height in the specified direction, used by both scrollUp and scrollDown.
private async scrollPage(page: Page, direction: "up" | "down"): Promise<void> { const { height } = this.getViewport(); const scrollAmount = direction === "down" ? height : -height; await page.evaluate((scrollHeight) => { window.scrollBy({ top: scrollHeight, behavior: "auto", }); }, scrollAmount); await delay(300); }