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docs: add guide for print dialogs

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Max Schmitt 2024-06-17 19:45:36 +02:00
parent 838c572209
commit 3cca1ea112
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58
docs/src/dialogs.md
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@ -5,7 +5,7 @@ title: "Dialogs"
## Introduction
Playwright can interact with the web page dialogs such as [`alert`](https://developer.mozilla.org/en-US/docs/Web/API/Window/alert), [`confirm`](https://developer.mozilla.org/en-US/docs/Web/API/Window/confirm), [`prompt`](https://developer.mozilla.org/en-US/docs/Web/API/Window/prompt) as well as [`beforeunload`](https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event) confirmation.
Playwright can interact with the web page dialogs such as [`alert`](https://developer.mozilla.org/en-US/docs/Web/API/Window/alert), [`confirm`](https://developer.mozilla.org/en-US/docs/Web/API/Window/confirm), [`prompt`](https://developer.mozilla.org/en-US/docs/Web/API/Window/prompt) as well as [`beforeunload`](https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event) confirmation. For print dialogs, see [Print](#print-dialogs).
## alert(), confirm(), prompt() dialogs
@ -126,3 +126,59 @@ Page.Dialog += async (_, dialog) =>
};
await Page.CloseAsync(new() { RunBeforeUnload = true });
```
## Print dialogs
In order to assert that a print dialog via [`window.print`](https://developer.mozilla.org/en-US/docs/Web/API/Window/print) was opened, you can use the following snippet:
```js
let resolveWaitForPrintDialog;
const waitForPrintDialog = new Promise<void>(x => resolveWaitForPrintDialog = x);
await page.exposeBinding('print', resolveWaitForPrintDialog);
await page.goto('<url>');
await page.getByText('Print it!').click();
await waitForPrintDialog;
```
```java
CompletableFuture<Void> waitForPrintDialog = new CompletableFuture<>();
page.exposeBinding("print", () -> waitForPrintDialog.complete(null));
page.navigate("<url>");
page.getByText("Print it!").click();
waitForPrintDialog.get();
```
```python async
import asyncio
wait_for_dialog_fut = asyncio.Future()
page.expose_binding("print", lambda: wait_for_dialog_fut.set_result(None))
await page.goto("<url>")
await page.get_by_text("Print it!").click()
await wait_for_dialog_fut
```
```python sync
page.evaluate("window.waitForPrintDialog = new Promise(resolve => window.print = resolve);")
page.goto("<url>")
page.get_by_text("Print it!").click()
page.evaluate("window.waitForPrintDialog")
```
```csharp
var waitForPrintDialog = new TaskCompletionSource<object>();
await Page.ExposeBindingAsync("print", () => waitForPrintDialog.SetResult(null));
await Page.GotoAsync("<url>");
await Page.GetByText("Print it!").ClickAsync();
await waitForPrintDialog.Task;
```