41 lines
1.3 KiB
Swift
41 lines
1.3 KiB
Swift
//
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// PoppableGestureRecognizerDelegate.swift
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// NetNewsWire-iOS
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//
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// Created by Maurice Parker on 11/18/19.
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// Copyright © 2019 Ranchero Software. All rights reserved.
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//
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// https://stackoverflow.com/a/38042863
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import UIKit
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final class PoppableGestureRecognizerDelegate: NSObject, UIGestureRecognizerDelegate {
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weak var navigationController: UINavigationController?
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weak var originalDelegate: UIGestureRecognizerDelegate?
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override func responds(to aSelector: Selector!) -> Bool {
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if aSelector == #selector(gestureRecognizer(_:shouldReceive:)) {
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return true
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} else if let responds = originalDelegate?.responds(to: aSelector) {
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return responds
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} else {
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return false
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}
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}
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override func forwardingTarget(for aSelector: Selector!) -> Any? {
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return originalDelegate
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}
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func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
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if let nav = navigationController, nav.isNavigationBarHidden, nav.viewControllers.count > 1 {
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return true
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} else if let result = originalDelegate?.gestureRecognizer?(gestureRecognizer, shouldReceive: touch) {
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return result
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} else {
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return false
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}
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}
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}
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