From 1afef16fa1955113b29adb090c736b26288b90af Mon Sep 17 00:00:00 2001
From: Yishi Lin <yishilin14@gmail.com>
Date: Thu, 12 Apr 2018 01:07:19 +0800
Subject: [PATCH] Support swipe back when viewing folder #141

---
 pass/Controllers/PasswordsViewController.swift | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/pass/Controllers/PasswordsViewController.swift b/pass/Controllers/PasswordsViewController.swift
index 34a208d..2129d8c 100644
--- a/pass/Controllers/PasswordsViewController.swift
+++ b/pass/Controllers/PasswordsViewController.swift
@@ -229,6 +229,11 @@ class PasswordsViewController: UIViewController, UITableViewDataSource, UITableV
         // reset the data table if the disaply settings have been changed
         NotificationCenter.default.addObserver(self, selector: #selector(actOnReloadTableViewRelatedNotification), name: .passwordDisplaySettingChanged, object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(actOnSearchNotification), name: .passwordSearch, object: nil)
+        
+        // listen to the swipe back guesture
+        let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
+        swipeRight.direction = UISwipeGestureRecognizerDirection.right
+        self.view.addGestureRecognizer(swipeRight)
     }
     
     override func viewWillAppear(_ animated: Bool) {
@@ -314,6 +319,15 @@ class PasswordsViewController: UIViewController, UITableViewDataSource, UITableV
         }
     }
     
+    @objc func respondToSwipeGesture(gesture: UIGestureRecognizer) {
+        if let swipeGesture = gesture as? UISwipeGestureRecognizer {
+            // swipe right -> swipe back
+            if swipeGesture.direction == .right && parentPasswordEntity != nil {
+                self.backAction(nil)
+            }
+        }
+    }
+    
     @objc func backAction(_ sender: Any?) {
         guard SharedDefaults[.isShowFolderOn] else { return }
         var anim: CATransition? = transitionFromLeft