Update lottie-ios

submodules/lottie-ios/Sources/Private/Model/Layers/TextLayerModel.swift

@@ -0,0 +1,58 @@
+//
+//  TextLayer.swift
+//  lottie-swift
+//
+//  Created by Brandon Withrow on 1/8/19.
+//
+
+import Foundation
+
+/// A layer that holds text.
+final class TextLayerModel: LayerModel {
+
+  // MARK: Lifecycle
+
+  required init(from decoder: Decoder) throws {
+    let container = try decoder.container(keyedBy: TextLayerModel.CodingKeys.self)
+    let textContainer = try container.nestedContainer(keyedBy: TextCodingKeys.self, forKey: .textGroup)
+    text = try textContainer.decode(KeyframeGroup<TextDocument>.self, forKey: .text)
+    animators = try textContainer.decode([TextAnimator].self, forKey: .animators)
+    try super.init(from: decoder)
+  }
+
+  required init(dictionary: [String: Any]) throws {
+    let containerDictionary: [String: Any] = try dictionary.value(for: CodingKeys.textGroup)
+    let textDictionary: [String: Any] = try containerDictionary.value(for: TextCodingKeys.text)
+    text = try KeyframeGroup<TextDocument>(dictionary: textDictionary)
+    let animatorDictionaries: [[String: Any]] = try containerDictionary.value(for: TextCodingKeys.animators)
+    animators = try animatorDictionaries.map({ try TextAnimator(dictionary: $0) })
+    try super.init(dictionary: dictionary)
+  }
+
+  // MARK: Internal
+
+  /// The text for the layer
+  let text: KeyframeGroup<TextDocument>
+
+  /// Text animators
+  let animators: [TextAnimator]
+
+  override func encode(to encoder: Encoder) throws {
+    try super.encode(to: encoder)
+    var container = encoder.container(keyedBy: CodingKeys.self)
+    var textContainer = container.nestedContainer(keyedBy: TextCodingKeys.self, forKey: .textGroup)
+    try textContainer.encode(text, forKey: .text)
+    try textContainer.encode(animators, forKey: .animators)
+  }
+
+  // MARK: Private
+
+  private enum CodingKeys: String, CodingKey {
+    case textGroup = "t"
+  }
+
+  private enum TextCodingKeys: String, CodingKey {
+    case text = "d"
+    case animators = "a"
+  }
+}