Temp

submodules/TelegramUI/Sources/ChatTextInputMenu.swift

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+import Foundation
+import UIKit
+import TelegramPresentationData
+
+enum ChatTextInputMenuState {
+    case inactive
+    case general
+    case format
+}
+
+final class ChatTextInputMenu {
+    private var stringBold: String = "Bold"
+    private var stringItalic: String = "Italic"
+    private var stringMonospace: String = "Monospace"
+    private var stringLink: String = "Link"
+    private var stringStrikethrough: String = "Strikethrough"
+    private var stringUnderline: String = "Underline"
+    
+    private(set) var state: ChatTextInputMenuState = .inactive {
+        didSet {
+            if self.state != oldValue {
+                switch self.state {
+                    case .inactive:
+                        UIMenuController.shared.menuItems = []
+                    case .general:
+                        UIMenuController.shared.menuItems = []
+                    case .format:
+                        UIMenuController.shared.menuItems = [
+                            UIMenuItem(title: self.stringBold, action: Selector(("formatAttributesBold:"))),
+                            UIMenuItem(title: self.stringItalic, action: Selector(("formatAttributesItalic:"))),
+                            UIMenuItem(title: self.stringMonospace, action: Selector(("formatAttributesMonospace:"))),
+                            UIMenuItem(title: self.stringLink, action: Selector(("formatAttributesLink:"))),
+                            UIMenuItem(title: self.stringStrikethrough, action: Selector(("formatAttributesStrikethrough:"))),
+                            UIMenuItem(title: self.stringUnderline, action: Selector(("formatAttributesUnderline:")))
+                        ]
+                }
+                
+            }
+        }
+    }
+    
+    private var observer: NSObjectProtocol?
+    
+    init() {
+        self.observer = NotificationCenter.default.addObserver(forName: UIMenuController.didHideMenuNotification, object: nil, queue: nil, using: { [weak self] _ in
+            self?.back()
+        })
+    }
+    
+    deinit {
+        if let observer = self.observer {
+            NotificationCenter.default.removeObserver(observer)
+        }
+    }
+    
+    func updateStrings(_ strings: PresentationStrings) {
+        self.stringBold = strings.TextFormat_Bold
+        self.stringItalic = strings.TextFormat_Italic
+        self.stringMonospace = strings.TextFormat_Monospace
+        self.stringLink = strings.TextFormat_Link
+        self.stringStrikethrough = strings.TextFormat_Strikethrough
+        self.stringUnderline = strings.TextFormat_Underline
+    }
+    
+    func activate() {
+        if self.state == .inactive {
+            self.state = .general
+        }
+    }
+    
+    func deactivate() {
+        self.state = .inactive
+    }
+    
+    func format(view: UIView, rect: CGRect) {
+        if self.state == .general {
+            self.state = .format
+            if #available(iOS 13.0, *) {
+                UIMenuController.shared.showMenu(from: view, rect: rect)
+            } else {
+                UIMenuController.shared.isMenuVisible = true
+                UIMenuController.shared.update()
+            }
+        }
+    }
+    
+    func back() {
+        if self.state == .format {
+            self.state = .general
+        }
+    }
+}