Temp

submodules/TelegramUI/Sources/ChatRecentActionsTitleView.swift

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+import Foundation
+import UIKit
+import AsyncDisplayKit
+import Display
+
+private func generateArrowImage(color: UIColor) -> UIImage? {
+    return generateImage(CGSize(width: 8.0, height: 5.0), rotatedContext: { size, context in
+        context.clear(CGRect(origin: CGPoint(), size: size))
+        context.setFillColor(color.cgColor)
+        context.beginPath()
+        context.move(to: CGPoint())
+        context.addLine(to: CGPoint(x: size.width, y: 0.0))
+        context.addLine(to: CGPoint(x: size.width / 2.0, y: size.height))
+        context.closePath()
+        context.fillPath()
+    })
+}
+
+final class ChatRecentActionsTitleView: UIView {
+    private let button: HighlightTrackingButtonNode
+    private let titleNode: TextNode
+    private let arrowNode: ASImageNode
+    
+    var color: UIColor {
+        didSet {
+            if self.color != oldValue {
+                self.setNeedsLayout()
+            }
+        }
+    }
+    
+    var pressed: (() -> Void)?
+    
+    var title: String = "" {
+        didSet {
+            if self.title != oldValue {
+                self.setNeedsLayout()
+            }
+        }
+    }
+    
+    init(color: UIColor) {
+        self.color = color
+        
+        self.button = HighlightTrackingButtonNode()
+        self.titleNode = TextNode()
+        self.titleNode.isUserInteractionEnabled = false
+        self.titleNode.displaysAsynchronously = false
+        
+        self.arrowNode = ASImageNode()
+        self.arrowNode.isLayerBacked = true
+        self.arrowNode.displaysAsynchronously = false
+        self.arrowNode.displayWithoutProcessing = true
+        self.arrowNode.image = generateArrowImage(color: color)
+        
+        super.init(frame: CGRect())
+        
+        self.addSubnode(self.titleNode)
+        self.addSubnode(self.arrowNode)
+        self.addSubnode(self.button)
+        
+        self.button.addTarget(self, action: #selector(self.buttonPressed), forControlEvents: [.touchUpInside])
+        self.button.highligthedChanged = { [weak self] highlighted in
+            if let strongSelf = self {
+                if highlighted {
+                    strongSelf.titleNode.layer.removeAnimation(forKey: "opacity")
+                    strongSelf.arrowNode.layer.removeAnimation(forKey: "opacity")
+                    strongSelf.titleNode.alpha = 0.4
+                    strongSelf.arrowNode.alpha = 0.4
+                } else {
+                    strongSelf.titleNode.alpha = 1.0
+                    strongSelf.arrowNode.alpha = 1.0
+                    strongSelf.titleNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
+                    strongSelf.arrowNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
+                }
+            }
+        }
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        let size = self.bounds.size
+        
+        self.button.frame = CGRect(origin: CGPoint(), size: size)
+        
+        let makeLayout = TextNode.asyncLayout(self.titleNode)
+        let (titleLayout, titleApply) = makeLayout(TextNodeLayoutArguments(attributedString: NSAttributedString(string: self.title, font: Font.semibold(17.0), textColor: self.color), backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: size, alignment: .center, lineSpacing: 0.0, cutout: nil, insets: UIEdgeInsets()))
+        let titleFrame = CGRect(origin: CGPoint(x: floor((size.width - titleLayout.size.width) / 2.0), y: floor((size.height - titleLayout.size.height) / 2.0)), size: titleLayout.size)
+        self.titleNode.frame = titleFrame
+        let _ = titleApply()
+        
+        if let image = self.arrowNode.image {
+            self.arrowNode.frame = CGRect(origin: CGPoint(x: titleFrame.maxX + 3.0, y: titleFrame.minY + 9.0), size: image.size)
+        }
+    }
+    
+    @objc func buttonPressed() {
+        self.pressed?()
+    }
+}