Yep/Yep/Views/TextViews/ChatTextView.swift

//
//  ChatTextView.swift
//  Yep
//
//  Created by NIX on 15/6/26.
//  Copyright (c) 2015年 Catch Inc. All rights reserved.
//

import UIKit

class ChatTextView: UITextView {

    override func canBecomeFirstResponder() -> Bool {
        return false
    }

    override func addGestureRecognizer(gestureRecognizer: UIGestureRecognizer) {

        // 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 {
                if longPressGestureRecognizer.minimumPressDuration == 0.5 {
                    return
                }
            }
        }

        super.addGestureRecognizer(gestureRecognizer)
    }
}