scroll_down
Scrolls down a web page by one viewport height to view content below the current screen position during browser automation.
Instructions
向下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:507-511 (handler)The main handler function scrollDown that executes the downward scrolling by calling doAction with scrollPage.
async scrollDown(): Promise<BrowserActionResult> { return this.doAction(async (page) => { await this.scrollPage(page, "down"); }); } - src/index.ts:110-117 (schema)Tool schema definition in the listTools response, including name, description, and empty input schema.
{ name: "scroll_down", description: "向下滚动页面一个视口高度", inputSchema: { type: "object", properties: {}, }, }, - src/index.ts:203-205 (registration)Registration and dispatch in the CallToolRequestSchema handler switch statement.
case "scroll_down": result = await this.browserSession.scrollDown(); break; - src/browserSession.ts:490-502 (helper)Helper function scrollPage that performs the actual scrolling logic using page.evaluate and window.scrollBy.
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); }