refactor isOperatingSystemAtLeastMajorVersion; workaround of longPress for menu or link

Yep/Configs/YepHelper.swift

@@ -78,3 +78,7 @@ func cleanRealmAndCaches() {
     NSNotificationCenter.defaultCenter().postNotificationName(EditProfileViewController.Notification.Logout, object: nil)
 }
 
+func isOperatingSystemAtLeastMajorVersion(majorVersion: Int) -> Bool {
+    return NSProcessInfo().isOperatingSystemAtLeastVersion(NSOperatingSystemVersion(majorVersion: majorVersion, minorVersion: 0, patchVersion: 0))
+}
+

Yep/Views/Cells/ChatLeftText/ChatLeftTextCell.swift

@@ -116,7 +116,20 @@ extension ChatLeftTextCell: UIGestureRecognizerDelegate {
 
     func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOfGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
 
-        return false
+        // iOS 9 在长按链接时不弹出 menu
+
+        if isOperatingSystemAtLeastMajorVersion(9) {
+
+            if let longPressGestureRecognizer = otherGestureRecognizer as? UILongPressGestureRecognizer {
+                if longPressGestureRecognizer.minimumPressDuration == 0.75 {
+                    return true
+                }
+            }
+
+            return false
+        }
+
+        return true
     }
 }
 

Yep/Views/Cells/ChatRightText/ChatRightTextCell.swift

@@ -139,7 +139,20 @@ extension ChatRightTextCell: UIGestureRecognizerDelegate {
 
     func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOfGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
 
-        return false
+        // iOS 9 在长按链接时不弹出 menu
+        
+        if isOperatingSystemAtLeastMajorVersion(9) {
+
+            if let longPressGestureRecognizer = otherGestureRecognizer as? UILongPressGestureRecognizer {
+                if longPressGestureRecognizer.minimumPressDuration == 0.75 {
+                    return true
+                }
+            }
+
+            return false
+        }
+
+        return true
     }
 }
 

Yep/Views/TextViews/ChatTextView.swift

@@ -10,17 +10,19 @@ import UIKit
 
 class ChatTextView: UITextView {
 
-    var menuLongPressGestureRecognizer: UILongPressGestureRecognizer!
-
     override func canBecomeFirstResponder() -> Bool {
         return false
     }
 
     override func addGestureRecognizer(gestureRecognizer: UIGestureRecognizer) {
 
-        if NSProcessInfo().isOperatingSystemAtLeastVersion(NSOperatingSystemVersion(majorVersion: 9, minorVersion: 0, patchVersion: 0)) {
+        // iOS 9 以上，强制不添加文字选择长按手势，免去触发选择文字
+        // 共有四种长按手势，iOS 9 正式版里分别加了两次：0.1 Reveal，0.12 tap link，0.5 selection， 0.75 press link
+        if isOperatingSystemAtLeastMajorVersion(9) {
             if let longPressGestureRecognizer = gestureRecognizer as? UILongPressGestureRecognizer {
-                return
+                if longPressGestureRecognizer.minimumPressDuration == 0.5 {
+                    return
+                }
             }
         }