Created
March 18, 2024 20:35
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An extension on NSApplication providing a computed property that describes the current responder chain.
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| // | |
| // NSApplication+NSResponderDebug.swift | |
| // | |
| // Created by Stephan Casas on 3/18/24. | |
| // | |
| import Cocoa; | |
| extension NSApplication { | |
| /// Returns a description of the `NSResponder` responder chain starting from the first responder. | |
| var responderChainDebugDescription: String { | |
| (self as AnyObject).perform( | |
| NSSelectorFromString("_eventFirstResponderChainDescription") | |
| ).takeUnretainedValue() as? String ?? "<Description Unavailable>" | |
| } | |
| } |
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It's a little simpler to get the value with key-value coding:
self.value(forKey: "_eventFirstResponderChainDescription") as? String