NetNewsWire/Technotes/Bugs/MacStateRestoration.md

Mac State Restoration

https://github.com/Ranchero-Software/NetNewsWire/issues/4589

https://github.com/Ranchero-Software/NetNewsWire/issues/4631

State to restore

Hide Read Articles Hide Read Feeds Windows positions, including split view positions

Warnings

WARNING: Secure coding is automatically enabled for restorable state! However, not on all supported macOS versions of this application. Opt-in to secure coding explicitly by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState:.

How state restoration works according to Apple

Info.plist: NSApplicationSupportsRestorableState - true

NSUserInterfaceItemIdentification

NSWindowRestoration Protocol window.restorationClass = …

encodeRestorableStateWithCoder: restoreStateWithCoder:

self.restorationIdentifier = "MainWindowController"

AppDelegate — application:shouldRestoreApplicationState: and application:shouldSaveApplicationState: for complex cases

Can be turned on and off via system pref

Tests

Window 1 Restore position — yes Restore split view position — sometimes Restore timeline position — no Restore Hide Read Feeds — yes Restore Hide Read Articles for inessential — yes

Window 2 Restore position Restore split view position Restore Hide Read Feeds Restore Hide Read Articles for The Verge

Restores second window but not first

With state restoration enabled, all three windows appear, but with not everything restored

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Close windows tests

1 window detail scroll not restored