watermark feature for iOS App

ownCloud/Client/Actions/Action+UserInterface.swift

@@ -32,6 +32,11 @@ extension Action {
 		let moreViewController = FrameViewController(header: header, viewController: tableViewController)
 		let actions = Action.sortedApplicableActions(for: context)
 
+		moreViewController.watermark(
+			username: core.bookmark.userName,
+			userMail: core.bookmark.user?.emailAddress
+		)
+
 		actions.forEach({
 			$0.actionWillRunHandler = { [weak moreViewController] (_ donePreparing: @escaping () -> Void) in
 				moreViewController?.dismiss(animated: true, completion: donePreparing)

ownCloud/Client/Viewer/DisplayHostViewController.swift

@@ -128,6 +128,12 @@ class DisplayHostViewController: UIPageViewController {
 	override func viewDidLoad() {
 		super.viewDidLoad()
 
+		watermark(
+			username: self.clientContext?.core?.bookmark.userName,
+			userMail: self.clientContext?.core?.bookmark.user?.emailAddress
+		)
+
+
 		self.dataSource = self
 		self.delegate = self
 

ownCloud/Resources/Localizable.xcstrings

@@ -72450,6 +72450,75 @@
         }
       }
     },
+    "ScreenshotNotificationButton" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "أنا أفهم"
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Verstanden"
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "I understand"
+          }
+        }
+      }
+    },
+    "ScreenshotNotificationMessage" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : " تم اكتشاف لقطة شاشة، ولا يسمح بلقطات الشاشة وتسجيلات الشاشة لهذا التطبيق"
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Screen Capture Detected, Screenshots und Bildschirmaufnahmen dieser Anwendung sind nicht erlaubt."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Screen Capture Detected, Screenshots and screen recordings of this app are not allowed."
+          }
+        }
+      }
+    },
+    "ScreenshotNotificationTitle" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Screenshot taken"
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Bildschirmaufnahme gemacht"
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Screenshot taken"
+          }
+        }
+      }
+    },
     "Scroll to Bottom": {
       "extractionState": "manual",
       "localizations": {

ownCloudAppShared/Client/Sharing/ShareViewController.swift

@@ -251,6 +251,7 @@ open class ShareViewController: CollectionViewController, SearchViewControllerDe
 				expirationDate = Date(timeIntervalSinceNow: numberOfDays.doubleValue * (24 * 60 * 60))
 			}
 		}
+		observeScreenshotEvent()
 	}
 
 	required public init?(coder: NSCoder) {
@@ -335,6 +336,12 @@ open class ShareViewController: CollectionViewController, SearchViewControllerDe
 		}
 
 		updateState()
+
+		watermark(
+			username: self.clientContext?.core?.bookmark.userName,
+			userMail: self.clientContext?.core?.bookmark.user?.emailAddress
+		)
+
 	}
 
 	// MARK: - Share Role & permissions
@@ -1073,4 +1080,9 @@ open class ShareViewController: CollectionViewController, SearchViewControllerDe
 			}
 		}
 	}
+
+	deinit {
+		stopObserveScreenshotEvent()
+	}
+
 }

ownCloudAppShared/Client/Sharing/SharingViewController.swift

@@ -229,6 +229,16 @@ open class SharingViewController: CollectionViewController {
 		}
 	}
 
+	override open func viewDidLoad() {
+		super.viewDidLoad()
+		observeScreenshotEvent()
+		watermark(
+			username: self.clientContext?.core?.bookmark.userName,
+			userMail: self.clientContext?.core?.bookmark.user?.emailAddress
+		)
+	}
+
+
 	deinit {
 		if let core = clientContext?.core, let itemSharesQuery {
 			core.stop(itemSharesQuery)

ownCloudAppShared/Client/View Controllers/ClientItemViewController.swift

@@ -334,6 +334,11 @@ open class ClientItemViewController: CollectionViewController, SortBarDelegate,
 	public override func viewDidLoad() {
 		super.viewDidLoad()
 
+		watermark(
+			username: self.clientContext?.accountConnection?.core?.connection.loggedInUser?.userName,
+			userMail: self.clientContext?.accountConnection?.core?.connection.loggedInUser?.emailAddress
+		)
+
 		// Add navigation bar button items
 		updateNavigationBarButtonItems()
 

ownCloudAppShared/Client/View Controllers/ClientSharedByMeViewController.swift

@@ -49,6 +49,12 @@ class ClientSharedByMeViewController: CollectionViewController {
 	override func viewDidLoad() {
 		super.viewDidLoad()
 
+		observeScreenshotEvent()
+		watermark(
+			username: self.clientContext?.core?.bookmark.userName,
+			userMail: self.clientContext?.core?.bookmark.user?.emailAddress
+		)
+
 		// Disable dragging of items, so keyboard control does
 		// not include "Drag Item" in the accessibility actions
 		// invoked with Tab + Z
@@ -120,4 +126,8 @@ class ClientSharedByMeViewController: CollectionViewController {
 
 		setCoverView(coverView, layout: .top)
 	}
+	deinit {
+		stopObserveScreenshotEvent()
+	}
+
 }

ownCloudAppShared/Client/View Controllers/ClientSharedWithMeViewController.swift

@@ -45,6 +45,12 @@ class ClientSharedWithMeViewController: CollectionViewController {
 	override func viewDidLoad() {
 		super.viewDidLoad()
 
+		observeScreenshotEvent()
+		watermark(
+			username: self.clientContext?.core?.bookmark.userName,
+			userMail: self.clientContext?.core?.bookmark.user?.emailAddress
+		)
+
 		// Disable dragging of items, so keyboard control does
 		// not include "Drag Item" in the accessibility actions
 		// invoked with Tab + Z
@@ -123,4 +129,8 @@ class ClientSharedWithMeViewController: CollectionViewController {
 
 		setCoverView(coverView, layout: .top)
 	}
+
+	deinit {
+		stopObserveScreenshotEvent()
+	}
 }

ownCloudAppShared/Tools/VendorServices.swift

@@ -103,6 +103,58 @@ public class VendorServices : NSObject {
 		return false
 	}
 
+	public var watermarkEnabled: Bool {
+		if let watermarkEnabled = self.classSetting(forOCClassSettingsKey: .watermarkEnabled) as? Bool {
+			return watermarkEnabled
+		}
+
+		return false
+	}
+
+	public var watermarkOpacity: Int {
+		if let watermarkOpacity = self.classSetting(forOCClassSettingsKey: .watermarkOpacity) as? Int {
+			return watermarkOpacity
+		}
+
+		return 100
+	}
+
+	public var watermarkFontSize: Int {
+		if let watermarkFontSize = self.classSetting(forOCClassSettingsKey: .watermarkFontSize) as? Int {
+			return watermarkFontSize
+		}
+
+		return 15
+	}
+
+	public var watermarkText: String? {
+		return self.classSetting(forOCClassSettingsKey: .watermarkText) as? String
+	}
+
+	public var watermarkShowMail: Bool {
+		if let watermarkShowMail = self.classSetting(forOCClassSettingsKey: .watermarkShowMail) as? Bool {
+			return watermarkShowMail
+		}
+
+		return false
+	}
+
+	public var watermarkShowDate: Bool {
+		if let watermarkShowDate = self.classSetting(forOCClassSettingsKey: .watermarkShowDate) as? Bool {
+			return watermarkShowDate
+		}
+
+		return false
+	}
+
+	public var showScreenshotNotification: Bool {
+		if let showScreenshotNotification = self.classSetting(forOCClassSettingsKey: .showScreenshotNotification) as? Bool {
+			return showScreenshotNotification
+		}
+
+		return false
+	}
+
 	static public var shared : VendorServices = {
 		return VendorServices()
 	}()
@@ -151,6 +203,14 @@ public extension OCClassSettingsKey {
 
 	static let appStoreLink = OCClassSettingsKey("app-store-link")
 	static let recommendToFriendEnabled = OCClassSettingsKey("recommend-to-friend-enabled")
+
+	static let watermarkEnabled = OCClassSettingsKey("watermark-enabled")
+	static let watermarkOpacity = OCClassSettingsKey("watermark-opacity")
+	static let watermarkFontSize = OCClassSettingsKey("watermark-font-size")
+	static let watermarkText = OCClassSettingsKey("watermark-text")
+	static let watermarkShowMail = OCClassSettingsKey("watermark-show-mail")
+	static let watermarkShowDate = OCClassSettingsKey("watermark-show-date")
+	static let showScreenshotNotification = OCClassSettingsKey("show-screenshot-notification")
 }
 
 extension VendorServices : OCClassSettingsSupport {
@@ -165,7 +225,16 @@ extension VendorServices : OCClassSettingsSupport {
 				.enableReviewPrompt: VendorServices.shared.enableReviewPrompt,
 
 				.appStoreLink : "https://itunes.apple.com/app/id1359583808?mt=8",
-				.recommendToFriendEnabled: !VendorServices.shared.isBranded
+				.recommendToFriendEnabled: !VendorServices.shared.isBranded,
+
+				.watermarkEnabled: false,
+				.watermarkOpacity: 80,
+				.watermarkFontSize: 20,
+				.watermarkText: "",
+				.watermarkShowMail: true,
+				.watermarkShowDate: true,
+				.showScreenshotNotification: true,
+
 			]
 		}
 

ownCloudAppShared/UIKit Extension/UIView+Extension.swift

@@ -17,6 +17,8 @@
  */
 
 import UIKit
+import ownCloudApp
+
 
 public extension UIView {
 	// MARK: - Animation