Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/ComponentFlow/Source/Gestures/Gesture.swift

@@ -0,0 +1,29 @@
+import Foundation
+import UIKit
+
+public class Gesture {
+    class Id {
+        private var _id: UInt = 0
+        public var id: UInt {
+            return self._id
+        }
+
+        init() {
+            self._id = UInt(bitPattern: Unmanaged.passUnretained(self).toOpaque())
+        }
+    }
+
+    let id: Id
+
+    init(id: Id) {
+        self.id = id
+    }
+
+    func create() -> UIGestureRecognizer {
+        preconditionFailure()
+    }
+
+    func update(gesture: UIGestureRecognizer) {
+        preconditionFailure()
+    }
+}

submodules/ComponentFlow/Source/Gestures/LongPressGesture.swift

@@ -0,0 +1,59 @@
+import Foundation
+import UIKit
+
+public extension Gesture {
+    enum LongPressGestureState {
+        case began
+        case ended
+    }
+
+    private final class LongPressGesture: Gesture {
+        private class Impl: UILongPressGestureRecognizer {
+            var action: (LongPressGestureState) -> Void
+
+            init(pressDuration: Double, action: @escaping (LongPressGestureState) -> Void) {
+                self.action = action
+                
+                super.init(target: nil, action: nil)
+                self.minimumPressDuration = pressDuration
+                self.addTarget(self, action: #selector(self.onAction))
+            }
+
+            @objc private func onAction() {
+                switch self.state {
+                case .began:
+                    self.action(.began)
+                case .ended, .cancelled:
+                    self.action(.ended)
+                default:
+                    break
+                }
+            }
+        }
+
+        static let id = Id()
+
+        private let pressDuration: Double
+        private let action: (LongPressGestureState) -> Void
+
+        init(pressDuration: Double, action: @escaping (LongPressGestureState) -> Void) {
+            self.pressDuration = pressDuration
+            self.action = action
+
+            super.init(id: Self.id)
+        }
+
+        override func create() -> UIGestureRecognizer {
+            return Impl(pressDuration: self.pressDuration, action: self.action)
+        }
+
+        override func update(gesture: UIGestureRecognizer) {
+            (gesture as! Impl).minimumPressDuration = self.pressDuration
+            (gesture as! Impl).action = self.action
+        }
+    }
+
+    static func longPress(duration: Double = 0.2, _ action: @escaping (LongPressGestureState) -> Void) -> Gesture {
+        return LongPressGesture(pressDuration: duration, action: action)
+    }
+}

submodules/ComponentFlow/Source/Gestures/PanGesture.swift

@@ -0,0 +1,59 @@
+import Foundation
+import UIKit
+
+public extension Gesture {
+    enum PanGestureState {
+        case began
+        case updated(offset: CGPoint)
+        case ended(velocity: CGPoint)
+    }
+
+    private final class PanGesture: Gesture {
+        private class Impl: UIPanGestureRecognizer {
+            var action: (PanGestureState) -> Void
+
+            init(action: @escaping (PanGestureState) -> Void) {
+                self.action = action
+
+                super.init(target: nil, action: nil)
+                self.addTarget(self, action: #selector(self.onAction))
+            }
+
+            @objc private func onAction() {
+                switch self.state {
+                case .began:
+                    self.action(.began)
+                case .ended, .cancelled:
+                    self.action(.ended(velocity: self.velocity(in: self.view)))
+                case .changed:
+                    let offset = self.translation(in: self.view)
+                    self.action(.updated(offset: offset))
+                default:
+                    break
+                }
+            }
+        }
+
+        static let id = Id()
+
+        private let action: (PanGestureState) -> Void
+
+        init(action: @escaping (PanGestureState) -> Void) {
+            self.action = action
+
+            super.init(id: Self.id)
+        }
+
+        override func create() -> UIGestureRecognizer {
+            return Impl(action: self.action)
+        }
+
+        override func update(gesture: UIGestureRecognizer) {
+            (gesture as! Impl).action = action
+        }
+    }
+
+    static func pan(_ action: @escaping (PanGestureState) -> Void) -> Gesture {
+        return PanGesture(action: action)
+    }
+}

submodules/ComponentFlow/Source/Gestures/TapGesture.swift

@@ -0,0 +1,43 @@
+import Foundation
+import UIKit
+
+public extension Gesture {
+    private final class TapGesture: Gesture {
+        private class Impl: UITapGestureRecognizer {
+            var action: () -> Void
+
+            init(action: @escaping () -> Void) {
+                self.action = action
+
+                super.init(target: nil, action: nil)
+                self.addTarget(self, action: #selector(self.onAction))
+            }
+
+            @objc private func onAction() {
+                self.action()
+            }
+        }
+
+        static let id = Id()
+
+        private let action: () -> Void
+
+        init(action: @escaping () -> Void) {
+            self.action = action
+
+            super.init(id: Self.id)
+        }
+
+        override func create() -> UIGestureRecognizer {
+            return Impl(action: self.action)
+        }
+
+        override func update(gesture: UIGestureRecognizer) {
+            (gesture as! Impl).action = action
+        }
+    }
+
+    static func tap(_ action: @escaping () -> Void) -> Gesture {
+        return TapGesture(action: action)
+    }
+}