---
title: SFSafariApplication
framework: safariservices
role: symbol
role_heading: Class
path: safariservices/sfsafariapplication
---

# SFSafariApplication

A proxy for the Safari app.

## Declaration

```swift
class SFSafariApplication
```

## Overview

Overview The SFSafariApplication class is used by a Safari app extension to access the active Safari window, open a new window, and update the toolbar items on a window. An application that acts as a host container for a Safari app extension can use this class to send messages to the app extension. There is no object instance for this class.

## Topics

### Communicating With the App Extension

- [dispatchMessage(withName:toExtensionWithIdentifier:userInfo:completionHandler:)](safariservices/sfsafariapplication/dispatchmessage(withname:toextensionwithidentifier:userinfo:completionhandler:).md)

### Working with Windows

- [getActiveWindow(completionHandler:)](safariservices/sfsafariapplication/getactivewindow(completionhandler:).md)
- [openWindow(with:completionHandler:)](safariservices/sfsafariapplication/openwindow(with:completionhandler:).md)
- [showPreferencesForExtension(withIdentifier:completionHandler:)](safariservices/sfsafariapplication/showpreferencesforextension(withidentifier:completionhandler:).md)

### Updating Toolbar Items

- [setToolbarItemsNeedUpdate()](safariservices/sfsafariapplication/settoolbaritemsneedupdate().md)

### Type Methods

- [getAllWindows(completionHandler:)](safariservices/sfsafariapplication/getallwindows(completionhandler:).md)
- [getHostApplication(completionHandler:)](safariservices/sfsafariapplication/gethostapplication(completionhandler:).md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Safari app extensions

- [Safari app extensions](safariservices/safari-app-extensions.md)
- [SFSafariExtension](safariservices/sfsafariextension.md)
- [SFSafariWindow](safariservices/sfsafariwindow.md)
- [SFSafariPage](safariservices/sfsafaripage.md)
- [SFSafariTab](safariservices/sfsafaritab.md)