How to get the state(enabled/disabled) of Safari App Extension from the containing macOS app?

Question

I'm developing a Safari App Extension, which has to included with a containing macOS app. When a user installs this app, the extension is added to Safari, but it's disabled by default. I can use SFSafariApplication.showPreferencesForExtension to direct users to the Safari preferences.

I'd also like to detect the state of the extension (enabled/disabled) to only ask to enable the extension if it's actually disabled and also to change the view in the containing app once it's been enabled. My extension is not a content blocker, so I don't think I can use SFContentBlockerManager.getStateOfContentBlocker. How can I achieve that?

Answer 1

This class allows to query extension state: SFSafariExtensionManager via its getStateOfSafariExtension method.

Swift 4 Example:

SFSafariExtensionManager.getStateOfSafariExtension(withIdentifier: ...) { (state, error) in
    if state?.isEnabled ?? false {
        // it's enabled
    } else {
        // it's disabled
    }
}