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页面

页面​

¥Pages

每个 BrowserContext 可以有多个页面。Page 指的是浏览器上下文中的单个选项卡或弹出窗口。它应用于导航到 URL 并与页面内容交互。

¥Each BrowserContext can have multiple pages. A Page refers to a single tab or a popup window within a browser context. It should be used to navigate to URLs and interact with the page content.

// Create a page.
const page = await context.newPage();

// Navigate explicitly, similar to entering a URL in the browser.
await page.goto('http://example.com');
// Fill an input.
await page.locator('#search').fill('query');

// Navigate implicitly by clicking a link.
await page.locator('#submit').click();
// Expect a new url.
console.log(page.url());

多页​

¥Multiple pages

每个浏览器上下文可以托管多个页面（选项卡）。

¥Each browser context can host multiple pages (tabs).

  • 每个页面的行为就像一个集中的活动页面。不需要将页面置于前面。

    ¥Each page behaves like a focused, active page. Bringing the page to front is not required.

  • 上下文内的页面遵循上下文级模拟，例如视口大小、自定义网络路由或浏览器区域设置。

    ¥Pages inside a context respect context-level emulation, like viewport sizes, custom network routes or browser locale.

// Create two pages
const pageOne = await context.newPage();
const pageTwo = await context.newPage();

// Get pages of a browser context
const allPages = context.pages();

处理新页面​

¥Handling new pages

浏览器上下文中的 page 事件可用于获取在上下文中创建的新页面。这可用于处理 target="_blank" 链接打开的新页面。

¥The page event on browser contexts can be used to get new pages that are created in the context. This can be used to handle new pages opened by target="_blank" links.

// Start waiting for new page before clicking. Note no await.
const pagePromise = context.waitForEvent('page');
await page.getByText('open new tab').click();
const newPage = await pagePromise;
await newPage.waitForLoadState();
console.log(await newPage.title());

如果触发新页面的操作未知，则可以使用以下模式。

¥If the action that triggers the new page is unknown, the following pattern can be used.

// Get all new pages (including popups) in the context
context.on('page', async page => {
  await page.waitForLoadState();
  console.log(await page.title());
});

处理弹出窗口​

¥Handling popups

如果页面打开了一个弹出窗口（例如通过 target="_blank" 链接打开的页面），你可以通过监听页面上的 popup 事件来获取对其的引用。

¥If the page opens a pop-up (e.g. pages opened by target="_blank" links), you can get a reference to it by listening to the popup event on the page.

除了 browserContext.on('page') 事件之外，还会触发此事件，但仅针对与此页面相关的弹出窗口。

¥This event is emitted in addition to the browserContext.on('page') event, but only for popups relevant to this page.

// Start waiting for popup before clicking. Note no await.
const popupPromise = page.waitForEvent('popup');
await page.getByText('open the popup').click();
const popup = await popupPromise;
// Wait for the popup to load.
await popup.waitForLoadState();
console.log(await popup.title());

如果触发弹出窗口的操作未知，则可以使用以下模式。

¥If the action that triggers the popup is unknown, the following pattern can be used.

// Get all popups when they open
page.on('popup', async popup => {
  await popup.waitForLoadState();
  console.log(await popup.title());
});