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TelegramUI/ChatMessageAvatarAccessoryItem.swift

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+import Foundation
+import Postbox
+import Display
+import TelegramCore
+
+final class ChatMessageAvatarAccessoryItem: ListViewAccessoryItem {
+    private let account: Account
+    private let peerId: PeerId
+    private let peer: Peer?
+    private let messageTimestamp: Int32
+    
+    init(account: Account, peerId: PeerId, peer: Peer?, messageTimestamp: Int32) {
+        self.account = account
+        self.peerId = peerId
+        self.peer = peer
+        self.messageTimestamp = messageTimestamp
+    }
+    
+    func isEqualToItem(_ other: ListViewAccessoryItem) -> Bool {
+        if case let other as ChatMessageAvatarAccessoryItem = other {
+            return other.peerId == self.peerId && abs(other.messageTimestamp - self.messageTimestamp) < 5 * 60
+        }
+        
+        return false
+    }
+    
+    func node() -> ListViewAccessoryItemNode {
+        let node = ChatMessageAvatarAccessoryItemNode()
+        node.frame = CGRect(origin: CGPoint(), size: CGSize(width: 38.0, height: 38.0))
+        if let peer = self.peer {
+            node.setPeer(account: account, peer: peer)
+        }
+        return node
+    }
+}
+
+final class ChatMessageAvatarAccessoryItemNode: ListViewAccessoryItemNode {
+    let avatarNode: ChatListAvatarNode
+    
+    override init() {
+        self.avatarNode = ChatListAvatarNode(font: Font.regular(14.0))
+        self.avatarNode.isLayerBacked = true
+        self.avatarNode.frame = CGRect(origin: CGPoint(), size: CGSize(width: 38.0, height: 38.0))
+        
+        super.init()
+        
+        self.isLayerBacked = true
+        self.addSubnode(self.avatarNode)
+    }
+    
+    func setPeer(account: Account, peer: Peer) {
+        self.avatarNode.setPeer(account: account, peer: peer)
+    }
+}