Repo created

iphone/Maps/UI/Search/ValueStepperView.swift

@@ -0,0 +1,84 @@
+final class ValueStepperView: UIControl {
+  var minValue = 0 {
+    didSet {
+      guard minValue <= maxValue else { fatalError() }
+      value = max(value, minValue)
+    }
+  }
+
+  var maxValue = 100 {
+    didSet {
+      guard maxValue >= minValue else { fatalError() }
+      value = min(value, maxValue)
+    }
+  }
+
+  var value = 0 {
+    didSet {
+      guard value <= maxValue && value >= minValue else { fatalError() }
+      minusButton.isEnabled = value > minValue
+      plusButton.isEnabled = value < maxValue
+      valueLabel.text = "\(value)"
+    }
+  }
+
+  let minusButton = MWMButton(type: .custom)
+  let plusButton = MWMButton(type: .custom)
+  let valueLabel = UILabel()
+
+  private var viewConstraints: [NSLayoutConstraint]!
+
+  override init(frame: CGRect) {
+    super.init(frame: frame)
+    configure()
+  }
+
+  required init?(coder: NSCoder) {
+    super.init(coder: coder)
+    configure()
+  }
+
+  private func configure() {
+    addSubview(minusButton)
+    addSubview(valueLabel)
+    addSubview(plusButton)
+    minusButton.translatesAutoresizingMaskIntoConstraints = false
+    valueLabel.translatesAutoresizingMaskIntoConstraints = false
+    plusButton.translatesAutoresizingMaskIntoConstraints = false
+
+    valueLabel.textAlignment = .center
+    minusButton.isEnabled = false
+
+    minusButton.setImage(UIImage(named: "ic_booking_minus"), for: .normal)
+    plusButton.setImage(UIImage(named: "ic_booking_plus"), for: .normal)
+    valueLabel.text = "\(value)"
+
+    minusButton.addTarget(self, action: #selector(onMinus(_:)), for: .touchUpInside)
+    plusButton.addTarget(self, action: #selector(onPlus(_:)), for: .touchUpInside)
+
+    NSLayoutConstraint.activate([
+      minusButton.leadingAnchor.constraint(equalTo: leadingAnchor),
+      valueLabel.leadingAnchor.constraint(equalTo: minusButton.trailingAnchor),
+      plusButton.leadingAnchor.constraint(equalTo: valueLabel.trailingAnchor),
+      plusButton.trailingAnchor.constraint(equalTo: trailingAnchor),
+      valueLabel.topAnchor.constraint(equalTo: topAnchor),
+      valueLabel.bottomAnchor.constraint(equalTo: bottomAnchor),
+      minusButton.topAnchor.constraint(equalTo: topAnchor),
+      minusButton.bottomAnchor.constraint(equalTo: bottomAnchor),
+      plusButton.topAnchor.constraint(equalTo: topAnchor),
+      plusButton.bottomAnchor.constraint(equalTo: bottomAnchor),
+      minusButton.widthAnchor.constraint(equalTo: minusButton.heightAnchor, multiplier: 1),
+      plusButton.widthAnchor.constraint(equalTo: plusButton.heightAnchor, multiplier: 1)
+    ])
+  }
+
+  @objc func onMinus(_ sender: UIButton) {
+    value -= 1
+    sendActions(for: .valueChanged)
+  }
+
+  @objc func onPlus(_ sender: UIButton) {
+    value += 1
+    sendActions(for: .valueChanged)
+  }
+}