Show online status

Signal/src/ViewControllers/AppSettings/AppSettingsViewController.m

@@ -306,6 +306,7 @@
     [avatarView autoPinLeadingToSuperviewMargin];
     [avatarView autoSetDimension:ALDimensionWidth toSize:kLargeAvatarSize];
     [avatarView autoSetDimension:ALDimensionHeight toSize:kLargeAvatarSize];
+    avatarView.contactID = OWSIdentityManager.sharedManager.identityKeyPair.hexEncodedPublicKey;
 
     if (!localProfileAvatarImage) {
         UIImage *cameraImage = [UIImage imageNamed:@"settings-avatar-camera"];

Signal/src/ViewControllers/ConversationView/ConversationHeaderView.swift

@@ -61,8 +61,6 @@ public class ConversationHeaderView: UIStackView {
 
         let avatarView = ConversationAvatarImageView(thread: thread, diameter: 36, contactsManager: contactsManager)
         self.avatarView = avatarView
-        // remove default border on avatarView
-        avatarView.layer.borderWidth = 0
 
         titleLabel = UILabel()
         titleLabel.textColor = Theme.navbarTitleColor

Signal/src/ViewControllers/HomeView/HomeViewCell.m

@@ -360,7 +360,8 @@ NS_ASSUME_NONNULL_BEGIN
         self.avatarView.image = nil;
         return;
     }
-
+    self.avatarView.contactID = thread.contactIdentifier;
+    [self.avatarView updateOnlineStatusIndicator];
     self.avatarView.image = [OWSAvatarBuilder buildImageForThread:thread.threadRecord diameter:self.avatarSize];
 }
 

Signal/src/ViewControllers/ThreadSettings/OWSConversationSettingsViewController.m

@@ -908,6 +908,7 @@ const CGFloat kIconViewLength = 24;
     [avatarView autoPinLeadingToSuperviewMargin];
     [avatarView autoSetDimension:ALDimensionWidth toSize:kLargeAvatarSize];
     [avatarView autoSetDimension:ALDimensionHeight toSize:kLargeAvatarSize];
+    avatarView.contactID = self.thread.contactIdentifier;
 
     UIView *threadNameView = [UIView containerView];
     [threadInfoView addSubview:threadNameView];

SignalMessaging/Views/AvatarImageView.swift

@@ -6,30 +6,37 @@ import UIKit
 
 @objc
 public class AvatarImageView: UIImageView {
-
     private let shadowLayer = CAShapeLayer()
+    @objc var contactID: String = ""
 
     public init() {
         super.init(frame: .zero)
-        self.configureView()
+        self.initialize()
     }
 
     override init(frame: CGRect) {
         super.init(frame: frame)
-        self.configureView()
+        self.initialize()
     }
 
     required public init?(coder aDecoder: NSCoder) {
         super.init(coder: aDecoder)
-        self.configureView()
+        self.initialize()
     }
 
     override init(image: UIImage?) {
         super.init(image: image)
-        self.configureView()
+        self.initialize()
     }
 
-    func configureView() {
+    func initialize() {
+        // Loki: Used to indicate a contact's online status
+        layer.borderWidth = 3
+        
+        // Loki: Observe online status changes
+        NotificationCenter.default.addObserver(self, selector: #selector(handleOnlineStatusChangedNotification), name: .contactOnlineStatusChanged, object: nil)
+        
+        // Set up UI
         self.autoPinToSquareAspectRatio()
 
         self.layer.minificationFilter = .trilinear
@@ -44,6 +51,9 @@ public class AvatarImageView: UIImageView {
     override public func layoutSubviews() {
         self.layer.cornerRadius = self.frame.size.width / 2
 
+        // Loki: Update the online status indicator if needed
+        updateOnlineStatusIndicator()
+        
         // Inner shadow.
         // This should usually not be visible; it is used to distinguish
         // profile pics from the background if they are similar.
@@ -63,6 +73,25 @@ public class AvatarImageView: UIImageView {
         self.shadowLayer.shadowOpacity = 0.15
         self.shadowLayer.shadowOffset = .zero
     }
+    
+    deinit {
+        NotificationCenter.default.removeObserver(self)
+    }
+    
+    @objc private func handleOnlineStatusChangedNotification(_ notification: Notification) {
+        let contactID = notification.object as! String
+        guard contactID == self.contactID else { return }
+        updateOnlineStatusIndicator()
+    }
+    
+    @objc func updateOnlineStatusIndicator() {
+        let peerInfo = LokiP2PManager.getInfo(for: contactID)
+        let isOnline = peerInfo?.isOnline ?? false
+        let color: UIColor = isOnline ? .ows_green : .ows_gray75
+        let currentUserID = OWSIdentityManager.shared().identityKeyPair()!.hexEncodedPublicKey
+        let isCurrentUser = (contactID == currentUserID)
+        layer.borderColor = isCurrentUser ? UIColor.clear.cgColor : color.cgColor
+    }
 }
 
 /// Avatar View which updates itself as necessary when the profile, contact, or group picture changes.
@@ -100,6 +129,7 @@ public class ConversationAvatarImageView: AvatarImageView {
         super.init(frame: .zero)
 
         if recipientId != nil {
+            self.contactID = recipientId! // Loki
             NotificationCenter.default.addObserver(self, selector: #selector(handleOtherUsersProfileChanged(notification:)), name: NSNotification.Name(rawValue: kNSNotificationName_OtherUsersProfileDidChange), object: nil)
 
             NotificationCenter.default.addObserver(self, selector: #selector(handleSignalAccountsChanged(notification:)), name: NSNotification.Name.OWSContactsManagerSignalAccountsDidChange, object: nil)

SignalServiceKit/src/Loki/API/LokiAPI.swift

@@ -76,9 +76,9 @@ import PromiseKit
                 LokiP2PManager.markOffline(destination)
                 if lokiMessage.isPing {
                     Logger.warn("[Loki] Failed to ping \(destination); marking contact as offline.")
-                    if let nsError = error as? NSError {
-                        nsError.isRetryable = false
-                        throw nsError
+                    if let error = error as? NSError {
+                        error.isRetryable = false
+                        throw error
                     } else {
                         throw error
                     }

SignalServiceKit/src/Loki/API/LokiP2PManager.swift

@@ -8,12 +8,12 @@
     private static let offlinePingTime = 2 * kMinuteInterval
 
     /// A p2p state struct
-    internal struct PeerInfo {
-        var address: String
-        var port: UInt16
-        var isOnline: Bool
-        var timerDuration: Double
-        var pingTimer: Timer? = nil
+    public struct PeerInfo {
+        public var address: String
+        public var port: UInt16
+        public var isOnline: Bool
+        public var timerDuration: Double
+        public var pingTimer: Timer? = nil
     }
     
     /// Our p2p address
@@ -77,7 +77,7 @@
     ///
     /// - Parameter pubKey: The contact hex pubkey
     /// - Returns: The P2P Details or nil if they don't exist
-    internal static func getInfo(for hexEncodedPublicKey: String) -> PeerInfo? {
+    public static func getInfo(for hexEncodedPublicKey: String) -> PeerInfo? {
         return peerInfo[hexEncodedPublicKey]
     }
     
@@ -163,6 +163,8 @@
             info.isOnline = isOnline
             
             peerInfo[pubKey] = info
+            
+            NotificationCenter.default.post(name: .contactOnlineStatusChanged, object: pubKey)
         }
     }
     

SignalServiceKit/src/Loki/API/Notification+OnlineStatus.swift

@@ -0,0 +1,4 @@
+
+public extension Notification.Name {
+    public static let contactOnlineStatusChanged = Notification.Name("contactOnlineStatusChanged")
+}