New: Save image to photos; Scan QRCode from image;

ShadowVPN/AppDelegate.swift

@@ -48,7 +48,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 
     func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool {
-        if url.scheme == "shadowVPN" {
+        if url.scheme == "shadowvpn" {
             NSNotificationCenter.defaultCenter().postNotificationName(enableCurrentVPNManagerVPNStateFromWidget,
                 object: nil, userInfo: ["command": url.host!])
         }

ShadowVPN/Info.plist

@@ -23,11 +23,13 @@
 		<dict>
 			<key>CFBundleTypeRole</key>
 			<string>Editor</string>
+			<key>CFBundleURLIconFile</key>
+			<string></string>
 			<key>CFBundleURLName</key>
 			<string>shadowVPN.iOS</string>
 			<key>CFBundleURLSchemes</key>
 			<array>
-				<string>shadowVPN</string>
+				<string>shadowvpn</string>
 			</array>
 		</dict>
 	</array>

ShadowVPN/QRCodeReaderVC.swift

@@ -8,22 +8,24 @@
 
 import UIKit
 import AVFoundation
+import Photos
 
 
 let SCREEN_HEIGHT = UIScreen.mainScreen().bounds.height
 let SCREEN_WIDTH = UIScreen.mainScreen().bounds.width
 
 
-class QRCodeReaderVC: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
+class QRCodeReaderVC: UIViewController, AVCaptureMetadataOutputObjectsDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
     var captureSession: AVCaptureSession?
     var captureVideoPreviewLayer: AVCaptureVideoPreviewLayer?
     var focusFrame: UIView?
     var delegate: QRCodeWriteBackDelegate?
 
     override func viewDidLoad() {
         super.viewDidLoad()
+        self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Albums", style: UIBarButtonItemStyle.Plain, target: self, action: "selectFromAlbum:")
 
-        self.configureInputDevice()
+        self.setupCapture()
         self.configureVideoPreviewLayer()
         self.initializeFocusFrame()
     }
@@ -44,6 +46,82 @@ class QRCodeReaderVC: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
     }
     */
 
+    func selectFromAlbum(sender: UIBarButtonItem) {
+        if captureSession != nil {
+            captureSession?.stopRunning()
+        }
+
+        let status = PHPhotoLibrary.authorizationStatus()
+
+        switch status {
+        case .Denied, .Restricted:
+            let alert = UIAlertController(title: "No Permission", message: "You should approve ShadowVPN to access your photos", preferredStyle: UIAlertControllerStyle.Alert)
+
+            let settingAction = UIAlertAction(title: "Setup", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction) -> Void in
+                dispatch_async(dispatch_get_main_queue(), { () -> Void in
+                    let settingURL = NSURL(string: UIApplicationOpenSettingsURLString)
+                    UIApplication.sharedApplication().openURL(settingURL!)
+                })
+            })
+            alert.addAction(settingAction)
+
+            let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)
+            alert.addAction(cancelAction)
+            self.presentViewController(alert, animated: true, completion: nil)
+        default:
+            let imagePicker = UIImagePickerController()
+            imagePicker.delegate = self
+            self.presentViewController(imagePicker, animated: true, completion: nil)
+        }
+    }
+
+    func imagePickerControllerDidCancel(picker: UIImagePickerController) {
+        picker.dismissViewControllerAnimated(true) { () -> Void in
+            if self.captureSession != nil {
+                self.captureSession?.startRunning()
+            }
+        }
+    }
+
+    func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
+        picker.dismissViewControllerAnimated(true, completion: nil)
+        let image = CIImage(image: info[UIImagePickerControllerOriginalImage] as! UIImage)
+
+        let detector = CIDetector(ofType: CIDetectorTypeQRCode, context: nil, options: nil)
+        let features = detector.featuresInImage(image!)
+        if features.count > 0 {
+            let feature = features[0] as! CIQRCodeFeature
+            self.parseQRCodeContext(context: feature.messageString)
+        } else {
+            if captureSession != nil {
+                captureSession?.startRunning()
+            }
+        }
+    }
+
+    func setupCapture() {
+        self.view.backgroundColor = UIColor.blackColor()
+        let status = AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeVideo)
+        switch status {
+        case .Denied, .Restricted:
+            let alert = UIAlertController(title: "No Permission", message: "You should approve ShadowVPN to access your video capture", preferredStyle: UIAlertControllerStyle.Alert)
+
+            let settingAction = UIAlertAction(title: "Setup", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction) -> Void in
+                let settingURL = NSURL(string: UIApplicationOpenSettingsURLString)
+                dispatch_async(dispatch_get_main_queue(), { () -> Void in
+                    UIApplication.sharedApplication().openURL(settingURL!)
+                })
+            })
+            alert.addAction(settingAction)
+
+            let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)
+            alert.addAction(cancelAction)
+            self.presentViewController(alert, animated: true, completion: nil)
+        default:
+            self.configureInputDevice()
+        }
+    }
+
     func configureInputDevice() {
         let captureInput: AnyObject!
         let captureDevice = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
@@ -61,15 +139,18 @@ class QRCodeReaderVC: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
         let captureMetadataOutput = AVCaptureMetadataOutput()
         captureSession?.addOutput(captureMetadataOutput)
 
+        self.setupScanRect(captureMetaDataOutput: captureMetadataOutput)
+        captureMetadataOutput.metadataObjectTypes = [AVMetadataObjectTypeQRCode]
+        captureMetadataOutput.setMetadataObjectsDelegate(self, queue: dispatch_get_main_queue())
+    }
+
+    func setupScanRect(captureMetaDataOutput output: AVCaptureMetadataOutput) {
         let scanRect = CGRectMake((SCREEN_WIDTH - 300) / 2, (SCREEN_HEIGHT - 300) / 2, 300, 300)
         let y = scanRect.origin.x / SCREEN_WIDTH
         let x = scanRect.origin.y / SCREEN_HEIGHT
         let height = scanRect.width / SCREEN_WIDTH
         let width = scanRect.height / SCREEN_HEIGHT
-
-        captureMetadataOutput.rectOfInterest = CGRectMake(x, y, width, height)
-        captureMetadataOutput.setMetadataObjectsDelegate(self, queue: dispatch_get_main_queue())
-        captureMetadataOutput.metadataObjectTypes = [AVMetadataObjectTypeQRCode]
+        output.rectOfInterest = CGRectMake(x, y, width, height)
     }
 
     func configureVideoPreviewLayer() {
@@ -115,7 +196,9 @@ class QRCodeReaderVC: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
         var config: Dictionary = [String: String]()
 
         if url.scheme == "shadowvpn" && url.host == "QRCode" {
-            captureSession?.stopRunning()
+            if captureSession != nil {
+                captureSession?.stopRunning()
+            }
             for item in url.queryItems! {
                 config[item.name] = item.value
             }

ShadowVPN/QRCodeShareVC.swift

@@ -7,9 +7,11 @@
 //
 
 import UIKit
+import Photos
 
 class QRCodeShareVC: UIViewController {
     var configQuery: String?
+    var imageView: UIImageView!
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -38,6 +40,7 @@ class QRCodeShareVC: UIViewController {
     */
 
     func displayQRCodeImage() {
+        // show Image
         let query: String = self.configQuery!
 
         let filter = CIFilter(name: "CIQRCodeGenerator")
@@ -48,7 +51,7 @@ class QRCodeShareVC: UIViewController {
         let x = (self.view.bounds.width - width) / 2
         let y = (self.view.bounds.height - heigth) / 2
 
-        let imgView: UIImageView = UIImageView(frame: CGRectMake(x, y, width, heigth))
+        self.imageView = UIImageView(frame: CGRectMake(x, y, width, heigth))
         let codeImage = UIImage(CIImage: (filter?.outputImage)!.imageByApplyingTransform(CGAffineTransformMakeScale(10, 10)))
 
         let iconImage = UIImage(named: "qrcode_avatar")
@@ -65,8 +68,56 @@ class QRCodeShareVC: UIViewController {
 
         UIGraphicsEndImageContext()
 
-        imgView.image = resultImage
-        self.view.addSubview(imgView)
+        let tapGR = UITapGestureRecognizer(target: self, action: "tapImage:")
+        imageView.userInteractionEnabled = true
+        imageView.addGestureRecognizer(tapGR)
+
+        self.imageView.image = resultImage
+        self.view.addSubview(self.imageView)
+    }
+
+    // func tapImage(sender: UITapGestureRecognizer) {
+    //     print("image view tapped")
+    // }
+
+    func save() {
+        // save code image to album
+
+        let status = PHPhotoLibrary.authorizationStatus()
+
+        switch status {
+        case .Denied, .Restricted:
+            let alert = UIAlertController(title: "No Permission", message: "You should approve ShadowVPN to access your photos", preferredStyle: UIAlertControllerStyle.Alert)
+
+            let settingAction = UIAlertAction(title: "Setup", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction) -> Void in
+                dispatch_async(dispatch_get_main_queue(), { () -> Void in
+                    let settingURL = NSURL(string: UIApplicationOpenSettingsURLString)
+                    UIApplication.sharedApplication().openURL(settingURL!)
+                })
+            })
+            alert.addAction(settingAction)
+
+            let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)
+            alert.addAction(cancelAction)
+            self.presentViewController(alert, animated: true, completion: nil)
+        default:
+            UIImageWriteToSavedPhotosAlbum(self.imageView.image!, self, "image:didFinishSavingWithError:contextInfo:", nil)
+        }
+
+    }
+
+    func image(image: UIImage, didFinishSavingWithError error: NSError?, contextInfo: AnyObject) {
+        if (error != nil) {
+            NSLog("%@", error!)
+        } else {
+            let alert = UIAlertController(title: "Saved", message: "Image save to Photos", preferredStyle: UIAlertControllerStyle.Alert)
+            let done = UIAlertAction(title: "OK", style: .Default, handler: { (action: UIAlertAction) -> Void in
+                self.navigationController?.popToRootViewControllerAnimated(true)
+            })
+            alert.addAction(done)
+            self.presentViewController(alert, animated: true, completion: nil)
+            NSLog("saved image to album")
+        }
     }
 
 }