31 lines
495 B
Swift
31 lines
495 B
Swift
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//
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// NSResponder-Extensions.swift
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// RSCore
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//
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// Created by Brent Simmons on 10/10/16.
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// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
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//
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import Cocoa
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public extension NSResponder {
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public func hasAncestor(_ ancestor: NSResponder) -> Bool {
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var nomad: NSResponder = self
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while(true) {
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if nomad === ancestor {
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return true
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}
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if let _ = nomad.nextResponder {
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nomad = nomad.nextResponder!
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}
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else {
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break
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}
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}
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return false
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}
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}
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