Media-related improvements

submodules/Components/UndoPanelComponent/Sources/UndoPanelComponent.swift

@@ -0,0 +1,67 @@
+import Foundation
+import UIKit
+import ComponentFlow
+
+public final class UndoPanelComponent: Component {
+    public let icon: AnyComponent<Empty>?
+    public let content: AnyComponent<Empty>
+    public let action: AnyComponent<Empty>?
+
+    public init(
+        icon: AnyComponent<Empty>?,
+        content: AnyComponent<Empty>,
+        action: AnyComponent<Empty>?
+    ) {
+        self.icon = icon
+        self.content = content
+        self.action = action
+    }
+
+    public static func ==(lhs: UndoPanelComponent, rhs: UndoPanelComponent) -> Bool {
+        if lhs.icon != rhs.icon {
+            return false
+        }
+        if lhs.content !== rhs.content {
+            return false
+        }
+        if lhs.action != rhs.action {
+            return false
+        }
+        
+        return true
+    }
+    
+    public final class View: UIVisualEffectView {
+        private var iconView: ComponentHostView<Empty>?
+        private let centralContentView: ComponentHostView<Empty>
+        private var actionView: ComponentHostView<Empty>?
+        
+        init() {
+            self.centralContentView = ComponentHostView()
+            
+            super.init(effect: nil)
+            
+            self.addSubview(self.contentView)
+        }
+        
+        required init?(coder: NSCoder) {
+            fatalError("init(coder:) has not been implemented")
+        }
+        
+        public func update(component: UndoPanelComponent, availableSize: CGSize, transition: Transition) -> CGSize {
+            self.effect = UIBlurEffect(style: .dark)
+            
+            self.layer.cornerRadius = 10.0
+            
+            return CGSize(width: availableSize.width, height: 50.0)
+        }
+    }
+    
+    public func makeView() -> View {
+        return View()
+    }
+    
+    public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: Transition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, transition: transition)
+    }
+}