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对话框

对话框 对象通过 page.on('dialog') 事件按页分派。

Dialog objects are dispatched by page via the page.on('dialog') event.

使用 Dialog 类的示例:

An example of using Dialog class:

const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.

(async () => {
const browser = await chromium.launch();
const page = await browser.newPage();
page.on('dialog', async dialog => {
console.log(dialog.message());
await dialog.dismiss();
});
await page.evaluate(() => alert('1'));
await browser.close();
})();
注意

除非有 page.on('dialog') 监听器,否则对话框会自动关闭。当监听器存在时,它必须是 dialog.accept()dialog.dismiss() 对话框 - 否则页面将 freeze 等待对话框,并且单击等操作将永远不会完成。

Dialogs are dismissed automatically, unless there is a page.on('dialog') listener. When listener is present, it must either dialog.accept() or dialog.dismiss() the dialog - otherwise the page will freeze waiting for the dialog, and actions like click will never finish.


方法

Methods

accept

Added in: v1.8 dialog.accept

当对话框被接受时返回。

Returns when the dialog has been accepted.

用法

Usage

await dialog.accept();
await dialog.accept(promptText);

参数

Arguments

在提示中输入的文本。如果对话框的 type 没有提示,不会造成任何影响。可选的。

A text to enter in prompt. Does not cause any effects if the dialog's type is not prompt. Optional.


defaultValue

Added in: v1.8 dialog.defaultValue

如果对话框有提示,则返回默认提示值。否则,返回空字符串。

If dialog is prompt, returns default prompt value. Otherwise, returns empty string.

用法

Usage

dialog.defaultValue();

返回

Returns


dismiss

Added in: v1.8 dialog.dismiss

当对话框关闭时返回。

Returns when the dialog has been dismissed.

用法

Usage

await dialog.dismiss();

message

Added in: v1.8 dialog.message

对话框中显示一条消息。

A message displayed in the dialog.

用法

Usage

dialog.message();

返回

Returns


page

Added in: v1.34 dialog.page

启动此对话框的页面(如果可用)。

The page that initiated this dialog, if available.

用法

Usage

dialog.page();

返回

Returns


type

Added in: v1.8 dialog.type

返回对话框的类型,可以是 alertbeforeunloadconfirmprompt 之一。

Returns dialog's type, can be one of alert, beforeunload, confirm or prompt.

用法

Usage

dialog.type();

返回

Returns