From 923c97cb15c3b5807c10265687ba6b07f5d1307c Mon Sep 17 00:00:00 2001
From: devtorch <dark2torch@gmail.com>
Date: Sat, 22 Sep 2018 15:57:51 +0300
Subject: [PATCH] feat: add handling to when the user changed the keyboard
 direction for the textField.

---
 .../LocalizationHelperDemo/Main.storyboard        |  5 +++--
 .../LocalizationHelperDemo/ViewController.swift   | 15 ++++++++++-----
 MOLH/MOLH.swift                                   | 14 ++++++++++++++
 MOLH/MOLHLanguage.swift                           | 11 +++++++++++
 4 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/LocalizationHelperDemo/LocalizationHelperDemo/Main.storyboard b/LocalizationHelperDemo/LocalizationHelperDemo/Main.storyboard
index da64feb..fdfa9c5 100644
--- a/LocalizationHelperDemo/LocalizationHelperDemo/Main.storyboard
+++ b/LocalizationHelperDemo/LocalizationHelperDemo/Main.storyboard
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14109" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="2QC-AV-CKr">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="2QC-AV-CKr">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
@@ -84,7 +84,7 @@
                                     <action selector="switchTheLanguage:" destination="BYZ-38-t0r" eventType="touchUpInside" id="hnH-TR-2p8"/>
                                 </connections>
                             </button>
-                            <textField opaque="NO" clipsSubviews="YES" tag="1" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="Centered TextField Case" textAlignment="center" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="fiM-aM-EMW">
+                            <textField opaque="NO" clipsSubviews="YES" tag="-1" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="Centered TextField Case" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="fiM-aM-EMW">
                                 <rect key="frame" x="79" y="306.5" width="217" height="30"/>
                                 <constraints>
                                     <constraint firstAttribute="width" constant="217" id="Lds-iU-Hr3"/>
@@ -120,6 +120,7 @@
                     <navigationItem key="navigationItem" title="Main View" id="eV5-Ly-eMc"/>
                     <connections>
                         <outlet property="programmaticallylocalizedLabel" destination="qa0-jT-D1A" id="8JT-qW-jzY"/>
+                        <outlet property="textField" destination="fiM-aM-EMW" id="3gA-WO-lYo"/>
                     </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
diff --git a/LocalizationHelperDemo/LocalizationHelperDemo/ViewController.swift b/LocalizationHelperDemo/LocalizationHelperDemo/ViewController.swift
index e877113..c3633c8 100644
--- a/LocalizationHelperDemo/LocalizationHelperDemo/ViewController.swift
+++ b/LocalizationHelperDemo/LocalizationHelperDemo/ViewController.swift
@@ -10,16 +10,21 @@ import UIKit
 
 class ViewController: UIViewController {
     @IBOutlet weak var programmaticallylocalizedLabel: UILabel!
+    @IBOutlet var textField: UITextField!
+
     override func viewDidLoad() {
         super.viewDidLoad()
         self.programmaticallylocalizedLabel.text = NSLocalizedString("localize me please", comment: "Localize me Label in the main scene")
-        // Do any additional setup after loading the view, typically from a nib.
+//        NotificationCenter.default.addObserver(self, selector: #selector(inputModeDidChange), name: .UITextInputCurrentInputModeDidChange, object: nil)
     }
     
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
+//    @objc func inputModeDidChange(_ notification: Notification) {
+//        if let language = self.textInputMode?.primaryLanguage, MOLHLanguage.isRTLLanguage(language: language) {
+//            textField.textAlignment = .right
+//        } else {
+//            textField.textAlignment = .left
+//        }
+//    }
     
     @IBAction func switchTheLanguage(_ sender: UIButton) {
         MOLH.setLanguageTo(MOLHLanguage.currentAppleLanguage() == "en" ? "ar" : "en")
diff --git a/MOLH/MOLH.swift b/MOLH/MOLH.swift
index d032876..2af75d5 100644
--- a/MOLH/MOLH.swift
+++ b/MOLH/MOLH.swift
@@ -292,6 +292,20 @@ extension UITextField: TextViewType {
         }
         
         handleSwitching()
+        listenToKeyboard()
+    }
+    
+    func listenToKeyboard() {
+        NotificationCenter.default.removeObserver(self, name: .UITextInputCurrentInputModeDidChange, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(inputModeDidChange), name: .UITextInputCurrentInputModeDidChange, object: nil)
+    }
+    
+    @objc func inputModeDidChange(_ notification: Notification) {
+        if let language = self.textInputMode?.primaryLanguage, MOLHLanguage.isRTLLanguage(language: language) {
+            self.textAlignment = .right
+        } else {
+            self.textAlignment = .left
+        }
     }
 }
 
diff --git a/MOLH/MOLHLanguage.swift b/MOLH/MOLHLanguage.swift
index c42804d..8e92936 100644
--- a/MOLH/MOLHLanguage.swift
+++ b/MOLH/MOLHLanguage.swift
@@ -108,4 +108,15 @@ open class MOLHLanguage {
     public static func isRTLLanguage() -> Bool {
         return currentLocaleIdentifier().hasPrefix("ar") || currentLocaleIdentifier().hasPrefix("fa")
     }
+    
+    /**
+     Check if the current language is a right to left language
+     
+     @param language to be tested
+
+     @return true if its a right to left language
+     */
+    public static func isRTLLanguage(language: String) -> Bool {
+        return language.hasPrefix("ar") || language.hasPrefix("fa")
+    }
 }