damus

nostr ios client
git clone git://jb55.com/damus
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KeyboardVisible.swift (742B)

      1 //
      2 //  KeyboardVisible.swift
      3 //  damus
      4 //
      5 //  Created by William Casarin on 2023-05-05.
      6 //
      7 
      8 import Foundation
      9 import Combine
     10 import UIKit
     11 
     12 
     13 /// Publisher to read keyboard changes.
     14 protocol KeyboardReadable {
     15     var keyboardPublisher: AnyPublisher<Bool, Never> { get }
     16 }
     17 
     18 extension KeyboardReadable {
     19     var keyboardPublisher: AnyPublisher<Bool, Never> {
     20         Publishers.Merge(
     21             NotificationCenter.default
     22                 .publisher(for: UIResponder.keyboardWillShowNotification)
     23                 .map { _ in true },
     24             
     25             NotificationCenter.default
     26                 .publisher(for: UIResponder.keyboardWillHideNotification)
     27                 .map { _ in false }
     28         )
     29         .eraseToAnyPublisher()
     30     }
     31 }