trigger sync when colors updates

Signal.xcodeproj/project.pbxproj

@@ -417,6 +417,7 @@
 		4C20B2B720CA0034001BAC90 /* ThreadViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4542DF51208B82E9007B4E76 /* ThreadViewModel.swift */; };
 		4C20B2B920CA10DE001BAC90 /* ConversationSearchViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C20B2B820CA10DE001BAC90 /* ConversationSearchViewController.swift */; };
 		4C4AEC4520EC343B0020E72B /* DismissableTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C4AEC4420EC343B0020E72B /* DismissableTextField.swift */; };
+		4CC0B59C20EC5F2E00CF6EE0 /* ConversationConfigurationSyncOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CC0B59B20EC5F2E00CF6EE0 /* ConversationConfigurationSyncOperation.swift */; };
 		70377AAB1918450100CAF501 /* MobileCoreServices.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 70377AAA1918450100CAF501 /* MobileCoreServices.framework */; };
 		768A1A2B17FC9CD300E00ED8 /* libz.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 768A1A2A17FC9CD300E00ED8 /* libz.dylib */; };
 		76C87F19181EFCE600C4ACAB /* MediaPlayer.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 76C87F18181EFCE600C4ACAB /* MediaPlayer.framework */; };
@@ -1077,6 +1078,7 @@
 		4C13C9F520E57BA30089A98B /* ColorPickerViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ColorPickerViewController.swift; sourceTree = "<group>"; };
 		4C20B2B820CA10DE001BAC90 /* ConversationSearchViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConversationSearchViewController.swift; sourceTree = "<group>"; };
 		4C4AEC4420EC343B0020E72B /* DismissableTextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DismissableTextField.swift; sourceTree = "<group>"; };
+		4CC0B59B20EC5F2E00CF6EE0 /* ConversationConfigurationSyncOperation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConversationConfigurationSyncOperation.swift; sourceTree = "<group>"; };
 		69349DE607F5BA6036C9AC60 /* Pods-SignalShareExtension.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-SignalShareExtension.debug.xcconfig"; path = "Pods/Target Support Files/Pods-SignalShareExtension/Pods-SignalShareExtension.debug.xcconfig"; sourceTree = "<group>"; };
 		70377AAA1918450100CAF501 /* MobileCoreServices.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = MobileCoreServices.framework; path = System/Library/Frameworks/MobileCoreServices.framework; sourceTree = SDKROOT; };
 		748A5CAEDD7C919FC64C6807 /* Pods_SignalTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_SignalTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -2016,6 +2018,7 @@
 				45CD81EE1DC030E7004C9430 /* SyncPushTokensJob.swift */,
 				452ECA4C1E087E7200E2F016 /* MessageFetcherJob.swift */,
 				451686AA1F520CDA00AC3D4B /* MultiDeviceProfileKeyUpdateJob.swift */,
+				4CC0B59B20EC5F2E00CF6EE0 /* ConversationConfigurationSyncOperation.swift */,
 			);
 			path = Jobs;
 			sourceTree = "<group>";
@@ -3198,6 +3201,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				4CC0B59C20EC5F2E00CF6EE0 /* ConversationConfigurationSyncOperation.swift in Sources */,
 				3461293E1FD1D72B00532771 /* ExperienceUpgradeFinder.swift in Sources */,
 				34D1F0BD1F8D108C0066283D /* AttachmentUploadView.m in Sources */,
 				452EC6DF205E9E30000E787C /* MediaGalleryViewController.swift in Sources */,

Signal/src/Jobs/ConversationConfigurationSyncOperation.swift

@@ -0,0 +1,118 @@
+//
+//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//
+
+import Foundation
+
+@objc
+class ConversationConfigurationSyncOperation: OWSOperation {
+
+    enum ColorSyncOperationError: Error {
+        case assertionError(description: String)
+    }
+
+    var dbConnection: YapDatabaseConnection {
+        return OWSPrimaryStorage.shared().dbReadConnection
+    }
+
+    var messageSender: MessageSender {
+        return Environment.current().messageSender
+    }
+
+    var contactsManager: OWSContactsManager {
+        return Environment.current().contactsManager
+    }
+
+    var profileManager: OWSProfileManager {
+        return OWSProfileManager.shared()
+    }
+
+    var identityManager: OWSIdentityManager {
+        return OWSIdentityManager.shared()
+    }
+
+    let thread: TSThread
+
+    @objc
+    init(thread: TSThread) {
+        self.thread = thread
+        super.init()
+    }
+
+    override func run() {
+        if let contactThread = thread as? TSContactThread {
+            sync(contactThread: contactThread)
+        } else if let groupThread = thread as? TSGroupThread {
+            sync(groupThread: groupThread)
+        } else {
+            self.reportAssertionError(description: "unknown thread type")
+        }
+    }
+
+    private func reportAssertionError(description: String) {
+        let error = ColorSyncOperationError.assertionError(description: description)
+        self.reportError(error)
+    }
+
+    func sync(contactThread: TSContactThread) {
+        guard let signalAccount: SignalAccount = self.contactsManager.signalAccount(forRecipientId: contactThread.contactIdentifier()) else {
+            reportAssertionError(description: "unable to find signalAccount")
+            return
+        }
+
+        let syncMessage: OWSSyncContactsMessage = OWSSyncContactsMessage(signalAccounts: [signalAccount],
+                                                                                 identityManager: self.identityManager,
+                                                                                 profileManager: self.profileManager)
+
+        var dataSource: DataSource? = nil
+        self.dbConnection.readWrite { transaction in
+            let messageData: Data = syncMessage.buildPlainTextAttachmentData(with: transaction)
+            dataSource = DataSourceValue.dataSource(withSyncMessageData: messageData)
+        }
+
+        guard let attachmentDataSource = dataSource else {
+            self.reportAssertionError(description: "unable to build attachment data source")
+            return
+        }
+
+        self.messageSender.enqueueTemporaryAttachment(attachmentDataSource,
+                                                      contentType: OWSMimeTypeApplicationOctetStream,
+                                                      in: syncMessage,
+                                                      success: {
+                                                        self.reportSuccess()
+        },
+                                                      failure: { error in
+                                                        self.reportError(error)
+        })
+    }
+
+    func sync(groupThread: TSGroupThread) {
+        // TODO sync only the affected group
+        // The current implementation works, but seems wasteful.
+        // Does desktop handle single group sync correctly?
+        // What does Android do?
+        let syncMessage: OWSSyncGroupsMessage = OWSSyncGroupsMessage()
+
+        var dataSource: DataSource? = nil
+        self.dbConnection.read { transaction in
+            let messageData: Data = syncMessage.buildPlainTextAttachmentData(with: transaction)
+            dataSource = DataSourceValue.dataSource(withSyncMessageData: messageData)
+        }
+
+        guard let attachmentDataSource = dataSource else {
+            self.reportAssertionError(description: "unable to build attachment data source")
+            return
+        }
+
+        self.messageSender.enqueueTemporaryAttachment(attachmentDataSource,
+                                                      contentType: OWSMimeTypeApplicationOctetStream,
+                                                      in: syncMessage,
+                                                      success: {
+                                                        self.reportSuccess()
+        },
+                                                      failure: { error in
+                                                        self.reportError(error)
+        })
+    }
+
+}

Signal/src/ViewControllers/ThreadSettings/OWSConversationSettingsViewController.m

@@ -1269,6 +1269,9 @@ const CGFloat kIconViewLength = 24;
         [self.contactsManager.avatarCache removeAllImages];
         [self updateTableContents];
         [self.conversationSettingsViewDelegate conversationColorWasUpdated];
+        ConversationConfigurationSyncOperation *operation = [[ConversationConfigurationSyncOperation alloc] initWithThread:self.thread];
+        
+        
         
         [self dismissViewControllerAnimated:YES completion:nil];
     }];