Add CopyableLabel enables to copy past text content.

Riot/Modules/Common/Views/CopyableLabel.swift

@@ -0,0 +1,75 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import UIKit
+
+/// Enables to copy text content of the label
+/// https://stackoverflow.com/a/62978837
+class CopyableLabel: UILabel {
+
+    // MARK: - Setup
+    
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        self.sharedInit()
+    }
+
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        self.sharedInit()
+    }
+
+    func sharedInit() {
+        self.isUserInteractionEnabled = true
+        self.addGestureRecognizer(UILongPressGestureRecognizer(target: self, action: #selector(self.showMenu)))
+    }
+    
+    // MARK: - Public
+    
+    @objc func showMenu(sender: AnyObject?) {
+        self.becomeFirstResponder()
+
+        let menu = UIMenuController.shared
+
+        if !menu.isMenuVisible {
+            if #available(iOS 13.0, *) {
+                menu.showMenu(from: self, rect: self.bounds)
+            } 
+        }
+    }
+    
+    // MARK: - Overrides
+
+    override func copy(_ sender: Any?) {
+        let board = UIPasteboard.general
+
+        board.string = text
+
+        let menu = UIMenuController.shared
+
+        if #available(iOS 13.0, *) {
+            menu.showMenu(from: self, rect: self.bounds)
+        }
+    }
+
+    override var canBecomeFirstResponder: Bool {
+        return true
+    }
+
+    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
+        return action == #selector(UIResponderStandardEditActions.copy)
+    }        
+}