Temp

submodules/TelegramUI/Sources/VerticalListContextResultsChatInputPanelButtonItem.swift

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+import Foundation
+import UIKit
+import AsyncDisplayKit
+import Display
+import TelegramCore
+import SyncCore
+import SwiftSignalKit
+import Postbox
+import TelegramPresentationData
+
+final class VerticalListContextResultsChatInputPanelButtonItem: ListViewItem {
+    fileprivate let theme: PresentationTheme
+    fileprivate let title: String
+    fileprivate let pressed: () -> Void
+    
+    public init(theme: PresentationTheme, title: String, pressed: @escaping () -> Void) {
+        self.theme = theme
+        self.title = title
+        self.pressed = pressed
+    }
+    
+    public func nodeConfiguredForParams(async: @escaping (@escaping () -> Void) -> Void, params: ListViewItemLayoutParams, synchronousLoads: Bool, previousItem: ListViewItem?, nextItem: ListViewItem?, completion: @escaping (ListViewItemNode, @escaping () -> (Signal<Void, NoError>?, (ListViewItemApply) -> Void)) -> Void) {
+        let configure = { () -> Void in
+            let node = VerticalListContextResultsChatInputPanelButtonItemNode()
+            
+            let nodeLayout = node.asyncLayout()
+            let (top, bottom) = (previousItem != nil, nextItem != nil)
+            let (layout, apply) = nodeLayout(self, params, top, bottom)
+            
+            node.contentSize = layout.contentSize
+            node.insets = layout.insets
+            
+            Queue.mainQueue().async {
+                completion(node, {
+                    return (nil, { _ in apply(.None) })
+                })
+            }
+        }
+        if Thread.isMainThread {
+            async {
+                configure()
+            }
+        } else {
+            configure()
+        }
+    }
+    
+    public func updateNode(async: @escaping (@escaping () -> Void) -> Void, node: @escaping () -> ListViewItemNode, params: ListViewItemLayoutParams, previousItem: ListViewItem?, nextItem: ListViewItem?, animation: ListViewItemUpdateAnimation, completion: @escaping (ListViewItemNodeLayout, @escaping (ListViewItemApply) -> Void) -> Void) {
+        Queue.mainQueue().async {
+            if let nodeValue = node() as? VerticalListContextResultsChatInputPanelButtonItemNode {
+                let nodeLayout = nodeValue.asyncLayout()
+                
+                async {
+                    let (top, bottom) = (previousItem != nil, nextItem != nil)
+                    
+                    let (layout, apply) = nodeLayout(self, params, top, bottom)
+                    Queue.mainQueue().async {
+                        completion(layout, { _ in
+                            apply(animation)
+                        })
+                    }
+                }
+            } else {
+                assertionFailure()
+            }
+        }
+    }
+}
+
+private let titleFont = Font.regular(15.0)
+
+final class VerticalListContextResultsChatInputPanelButtonItemNode: ListViewItemNode {
+    static let itemHeight: CGFloat = 32.0
+    
+    private let buttonNode: HighlightTrackingButtonNode
+    private let titleNode: TextNode
+    private let topSeparatorNode: ASDisplayNode
+    private let separatorNode: ASDisplayNode
+    
+    private var item: VerticalListContextResultsChatInputPanelButtonItem?
+    
+    init() {
+        self.buttonNode = HighlightTrackingButtonNode()
+        
+        self.topSeparatorNode = ASDisplayNode()
+        self.topSeparatorNode.isLayerBacked = true
+        
+        self.separatorNode = ASDisplayNode()
+        self.separatorNode.isLayerBacked = true
+        
+        self.titleNode = TextNode()
+        
+        super.init(layerBacked: false, dynamicBounce: false)
+        
+        self.addSubnode(self.topSeparatorNode)
+        self.addSubnode(self.separatorNode)
+        
+        self.addSubnode(self.titleNode)
+        self.addSubnode(self.buttonNode)
+        
+        self.buttonNode.highligthedChanged = { [weak self] highlighted in
+            if let strongSelf = self {
+                if highlighted {
+                    strongSelf.titleNode.layer.removeAnimation(forKey: "opacity")
+                    strongSelf.titleNode.alpha = 0.4
+                } else {
+                    strongSelf.titleNode.alpha = 1.0
+                    strongSelf.titleNode.layer.animateAlpha(from: 0.4, to: 1.0, duration: 0.2)
+                }
+            }
+        }
+        self.buttonNode.addTarget(self, action: #selector(buttonPressed), forControlEvents: .touchUpInside)
+    }
+    
+    override public func layoutForParams(_ params: ListViewItemLayoutParams, item: ListViewItem, previousItem: ListViewItem?, nextItem: ListViewItem?) {
+        if let item = item as? VerticalListContextResultsChatInputPanelButtonItem {
+            let doLayout = self.asyncLayout()
+            let merged = (top: previousItem != nil, bottom: nextItem != nil)
+            let (layout, apply) = doLayout(item, params, merged.top, merged.bottom)
+            self.contentSize = layout.contentSize
+            self.insets = layout.insets
+            apply(.None)
+        }
+    }
+    
+    func asyncLayout() -> (_ item: VerticalListContextResultsChatInputPanelButtonItem, _ params: ListViewItemLayoutParams, _ mergedTop: Bool, _ mergedBottom: Bool) -> (ListViewItemNodeLayout, (ListViewItemUpdateAnimation) -> Void) {
+        let makeTitleLayout = TextNode.asyncLayout(self.titleNode)
+        
+        return { [weak self] item, params, mergedTop, mergedBottom in
+            let titleString = NSAttributedString(string: item.title, font: titleFont, textColor: item.theme.list.itemAccentColor)
+            
+            let (titleLayout, titleApply) = makeTitleLayout(TextNodeLayoutArguments(attributedString: titleString, backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: CGSize(width: params.width - params.leftInset - params.rightInset - 16.0, height: 100.0), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
+            
+            let nodeLayout = ListViewItemNodeLayout(contentSize: CGSize(width: params.width, height: VerticalListContextResultsChatInputPanelButtonItemNode.itemHeight), insets: UIEdgeInsets())
+            
+            return (nodeLayout, { _ in
+                if let strongSelf = self {
+                    strongSelf.item = item
+                    
+                    strongSelf.separatorNode.backgroundColor = item.theme.list.itemPlainSeparatorColor
+                    strongSelf.topSeparatorNode.backgroundColor = item.theme.list.itemPlainSeparatorColor
+                    strongSelf.backgroundColor = item.theme.list.plainBackgroundColor
+                    
+                    let _ = titleApply()
+                    
+                    strongSelf.titleNode.frame = CGRect(origin: CGPoint(x: floor((params.width - titleLayout.size.width) / 2.0), y: floor((nodeLayout.contentSize.height - titleLayout.size.height) / 2.0) + 2.0), size: titleLayout.size)
+                    
+                    strongSelf.topSeparatorNode.isHidden = mergedTop
+                    strongSelf.separatorNode.isHidden = !mergedBottom
+                    
+                    strongSelf.topSeparatorNode.frame = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: params.width, height: UIScreenPixel))
+                    strongSelf.separatorNode.frame = CGRect(origin: CGPoint(x: 0.0, y: nodeLayout.contentSize.height - UIScreenPixel), size: CGSize(width: params.width, height: UIScreenPixel))
+                    
+                    strongSelf.buttonNode.frame = CGRect(origin: CGPoint(), size: nodeLayout.contentSize)
+                }
+            })
+        }
+    }
+    
+    @objc func buttonPressed() {
+        if let item = self.item {
+            item.pressed()
+        }
+    }
+}