Folder improvements

submodules/TelegramUI/Components/ChatFolderLinkPreviewScreen/Sources/ActionListItemComponent.swift

@@ -0,0 +1,196 @@
+import Foundation
+import UIKit
+import Display
+import AsyncDisplayKit
+import ComponentFlow
+import MultilineTextComponent
+import TelegramPresentationData
+
+final class ActionListItemComponent: Component {
+    let theme: PresentationTheme
+    let sideInset: CGFloat
+    let iconName: String?
+    let title: String
+    let hasNext: Bool
+    let action: () -> Void
+    
+    init(
+        theme: PresentationTheme,
+        sideInset: CGFloat,
+        iconName: String?,
+        title: String,
+        hasNext: Bool,
+        action: @escaping () -> Void
+    ) {
+        self.theme = theme
+        self.sideInset = sideInset
+        self.iconName = iconName
+        self.title = title
+        self.hasNext = hasNext
+        self.action = action
+    }
+    
+    static func ==(lhs: ActionListItemComponent, rhs: ActionListItemComponent) -> Bool {
+        if lhs.theme !== rhs.theme {
+            return false
+        }
+        if lhs.sideInset != rhs.sideInset {
+            return false
+        }
+        if lhs.iconName != rhs.iconName {
+            return false
+        }
+        if lhs.title != rhs.title {
+            return false
+        }
+        if lhs.hasNext != rhs.hasNext {
+            return false
+        }
+        return true
+    }
+    
+    final class View: UIView {
+        private let containerButton: HighlightTrackingButton
+        
+        private let title = ComponentView<Empty>()
+        private let iconView: UIImageView
+        private let separatorLayer: SimpleLayer
+        
+        private var highlightBackgroundFrame: CGRect?
+        private var highlightBackgroundLayer: SimpleLayer?
+        
+        private var component: ActionListItemComponent?
+        private weak var state: EmptyComponentState?
+        
+        override init(frame: CGRect) {
+            self.separatorLayer = SimpleLayer()
+            
+            self.containerButton = HighlightTrackingButton()
+            
+            self.iconView = UIImageView()
+            
+            super.init(frame: frame)
+            
+            self.layer.addSublayer(self.separatorLayer)
+            self.addSubview(self.containerButton)
+            
+            self.containerButton.addSubview(self.iconView)
+            
+            self.containerButton.highligthedChanged = { [weak self] isHighlighted in
+                guard let self, let component = self.component, let highlightBackgroundFrame = self.highlightBackgroundFrame else {
+                    return
+                }
+                
+                if isHighlighted {
+                    self.superview?.bringSubviewToFront(self)
+                    
+                    let highlightBackgroundLayer: SimpleLayer
+                    if let current = self.highlightBackgroundLayer {
+                        highlightBackgroundLayer = current
+                    } else {
+                        highlightBackgroundLayer = SimpleLayer()
+                        self.highlightBackgroundLayer = highlightBackgroundLayer
+                        self.layer.insertSublayer(highlightBackgroundLayer, above: self.separatorLayer)
+                        highlightBackgroundLayer.backgroundColor = component.theme.list.itemHighlightedBackgroundColor.cgColor
+                    }
+                    highlightBackgroundLayer.frame = highlightBackgroundFrame
+                    highlightBackgroundLayer.opacity = 1.0
+                } else {
+                    if let highlightBackgroundLayer = self.highlightBackgroundLayer {
+                        self.highlightBackgroundLayer = nil
+                        highlightBackgroundLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { [weak highlightBackgroundLayer] _ in
+                            highlightBackgroundLayer?.removeFromSuperlayer()
+                        })
+                    }
+                }
+            }
+            self.containerButton.addTarget(self, action: #selector(self.pressed), for: .touchUpInside)
+        }
+        
+        required init?(coder: NSCoder) {
+            fatalError("init(coder:) has not been implemented")
+        }
+        
+        @objc private func pressed() {
+            guard let component = self.component else {
+                return
+            }
+            component.action()
+        }
+        
+        func update(component: ActionListItemComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: Transition) -> CGSize {
+            let themeUpdated = self.component?.theme !== component.theme
+            
+            if self.component?.iconName != component.iconName {
+                if let iconName = component.iconName {
+                    self.iconView.image = UIImage(bundleImageName: iconName)?.withRenderingMode(.alwaysTemplate)
+                } else {
+                    self.iconView.image = nil
+                }
+            }
+            if themeUpdated {
+                self.iconView.tintColor = component.theme.list.itemAccentColor
+            }
+            
+            self.component = component
+            self.state = state
+            
+            let contextInset: CGFloat = 0.0
+            
+            let height: CGFloat = 44.0
+            let verticalInset: CGFloat = 1.0
+            let leftInset: CGFloat = 62.0 + component.sideInset
+            let rightInset: CGFloat = contextInset * 2.0 + 8.0 + component.sideInset
+            
+            let previousTitleFrame = self.title.view?.frame
+            
+            let titleSize = self.title.update(
+                transition: .immediate,
+                component: AnyComponent(MultilineTextComponent(
+                    text: .plain(NSAttributedString(string: component.title, font: Font.regular(17.0), textColor: component.theme.list.itemAccentColor))
+                )),
+                environment: {},
+                containerSize: CGSize(width: availableSize.width - leftInset - rightInset, height: 100.0)
+            )
+            
+            let centralContentHeight: CGFloat = titleSize.height
+            
+            let titleFrame = CGRect(origin: CGPoint(x: leftInset, y: floor((height - verticalInset * 2.0 - centralContentHeight) / 2.0)), size: titleSize)
+            if let titleView = self.title.view {
+                if titleView.superview == nil {
+                    titleView.isUserInteractionEnabled = false
+                    self.containerButton.addSubview(titleView)
+                }
+                titleView.frame = titleFrame
+                if let previousTitleFrame, previousTitleFrame.origin.x != titleFrame.origin.x {
+                    transition.animatePosition(view: titleView, from: CGPoint(x: previousTitleFrame.origin.x - titleFrame.origin.x, y: 0.0), to: CGPoint(), additive: true)
+                }
+            }
+            
+            if let iconImage = self.iconView.image {
+                transition.setFrame(view: self.iconView, frame: CGRect(origin: CGPoint(x: floor((leftInset - iconImage.size.width) / 2.0), y: floor((height - iconImage.size.height) / 2.0)), size: iconImage.size))
+            }
+            
+            if themeUpdated {
+                self.separatorLayer.backgroundColor = component.theme.list.itemPlainSeparatorColor.cgColor
+            }
+            transition.setFrame(layer: self.separatorLayer, frame: CGRect(origin: CGPoint(x: leftInset, y: height), size: CGSize(width: availableSize.width - leftInset, height: UIScreenPixel)))
+            self.separatorLayer.isHidden = !component.hasNext
+            
+            self.highlightBackgroundFrame = CGRect(origin: CGPoint(), size: CGSize(width: availableSize.width, height: height + ((component.hasNext) ? UIScreenPixel : 0.0)))
+            
+            let containerFrame = CGRect(origin: CGPoint(x: contextInset, y: verticalInset), size: CGSize(width: availableSize.width - contextInset * 2.0, height: height - verticalInset * 2.0))
+            transition.setFrame(view: self.containerButton, frame: containerFrame)
+            
+            return CGSize(width: availableSize.width, height: height)
+        }
+    }
+    
+    func makeView() -> View {
+        return View(frame: CGRect())
+    }
+    
+    func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: Transition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
+    }
+}