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@ -17,12 +17,12 @@ protocol ContactStoreAdaptee {
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var supportsContactEditing: Bool { get }
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func requestAccess(completionHandler: @escaping (Bool, Error?) -> Void)
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func fetchContacts() -> Result<[Contact], Error>
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func fetchCNContact(contactId: String) -> CNContact?
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func startObservingChanges(changeHandler: @escaping () -> Void)
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}
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public
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class ContactsFrameworkContactStoreAdaptee: ContactStoreAdaptee {
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let TAG = "[ContactsFrameworkContactStoreAdaptee]"
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class ContactsFrameworkContactStoreAdaptee: NSObject, ContactStoreAdaptee {
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private let contactStore = CNContactStore()
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private var changeHandler: (() -> Void)?
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private var initializedObserver = false
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@ -72,7 +72,7 @@ class ContactsFrameworkContactStoreAdaptee: ContactStoreAdaptee {
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return
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}
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Logger.info("\(self.TAG) sort order changed: \(String(describing: self.lastSortOrder)) -> \(String(describing: currentSortOrder))")
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Logger.info("\(self.logTag) sort order changed: \(String(describing: self.lastSortOrder)) -> \(String(describing: currentSortOrder))")
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self.lastSortOrder = currentSortOrder
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self.runChangeHandler()
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}
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@ -81,7 +81,7 @@ class ContactsFrameworkContactStoreAdaptee: ContactStoreAdaptee {
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@objc
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func runChangeHandler() {
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guard let changeHandler = self.changeHandler else {
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owsFail("\(TAG) trying to run change handler before it was registered")
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owsFail("\(self.logTag) trying to run change handler before it was registered")
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return
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}
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changeHandler()
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@ -100,13 +100,35 @@ class ContactsFrameworkContactStoreAdaptee: ContactStoreAdaptee {
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systemContacts.append(contact)
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}
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} catch let error as NSError {
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owsFail("\(self.TAG) Failed to fetch contacts with error:\(error)")
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owsFail("\(self.logTag) Failed to fetch contacts with error:\(error)")
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return .error(error)
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}
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let contacts = systemContacts.map { Contact(systemContact: $0) }
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return .success(contacts)
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}
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func fetchCNContact(contactId: String) -> CNContact? {
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var result: CNContact?
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do {
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let contactFetchRequest = CNContactFetchRequest(keysToFetch: ContactsFrameworkContactStoreAdaptee.allowedContactKeys)
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contactFetchRequest.sortOrder = .userDefault
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contactFetchRequest.predicate = CNContact.predicateForContacts(withIdentifiers: [contactId])
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try self.contactStore.enumerateContacts(with: contactFetchRequest) { (contact, _) -> Void in
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guard result == nil else {
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owsFail("\(self.logTag) More than one contact with contact id.")
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return
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}
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result = contact
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}
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} catch let error as NSError {
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owsFail("\(self.logTag) Failed to fetch contact with error:\(error)")
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return nil
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}
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return result
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}
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}
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@objc
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@ -125,8 +147,6 @@ public enum ContactStoreAuthorizationStatus: UInt {
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@objc
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public class SystemContactsFetcher: NSObject {
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private let TAG = "[SystemContactsFetcher]"
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private let serialQueue = DispatchQueue(label: "SystemContactsFetcherQueue")
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var lastContactUpdateHash: Int?
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@ -207,20 +227,20 @@ public class SystemContactsFetcher: NSObject {
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switch authorizationStatus {
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case .notDetermined:
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if CurrentAppContext().isInBackground() {
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Logger.error("\(self.TAG) do not request contacts permission when app is in background")
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Logger.error("\(self.logTag) do not request contacts permission when app is in background")
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completion(nil)
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return
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}
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self.contactStoreAdapter.requestAccess { (granted, error) in
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if let error = error {
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Logger.error("\(self.TAG) error fetching contacts: \(error)")
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Logger.error("\(self.logTag) error fetching contacts: \(error)")
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completion(error)
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return
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}
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guard granted else {
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// This case should have been caught by the error guard a few lines up.
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owsFail("\(self.TAG) declined contact access.")
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owsFail("\(self.logTag) declined contact access.")
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completion(nil)
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return
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}
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@ -232,7 +252,7 @@ public class SystemContactsFetcher: NSObject {
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case .authorized:
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self.updateContacts(completion: completion)
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case .denied, .restricted:
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Logger.debug("\(TAG) contacts were \(self.authorizationStatus)")
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Logger.debug("\(logTag) contacts were \(self.authorizationStatus)")
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self.delegate?.systemContactsFetcher(self, hasAuthorizationStatus: authorizationStatus)
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completion(nil)
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}
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@ -292,7 +312,7 @@ public class SystemContactsFetcher: NSObject {
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guard let _ = self else {
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return
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}
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Logger.error("background task time ran out contacts fetch completed.")
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Logger.error("background task time ran out before contacts fetch completed.")
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})
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// Ensure completion is invoked on main thread.
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@ -310,7 +330,7 @@ public class SystemContactsFetcher: NSObject {
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serialQueue.async {
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Logger.info("\(self.TAG) fetching contacts")
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Logger.info("\(self.logTag) fetching contacts")
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var fetchedContacts: [Contact]?
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switch self.contactStoreAdapter.fetchContacts() {
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@ -322,21 +342,21 @@ public class SystemContactsFetcher: NSObject {
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}
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guard let contacts = fetchedContacts else {
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owsFail("\(self.TAG) contacts was unexpectedly not set.")
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owsFail("\(self.logTag) contacts was unexpectedly not set.")
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completion(nil)
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}
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Logger.info("\(self.TAG) fetched \(contacts.count) contacts.")
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Logger.info("\(self.logTag) fetched \(contacts.count) contacts.")
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let contactsHash = HashableArray(contacts).hashValue
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DispatchQueue.main.async {
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var shouldNotifyDelegate = false
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if self.lastContactUpdateHash != contactsHash {
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Logger.info("\(self.TAG) contact hash changed. new contactsHash: \(contactsHash)")
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Logger.info("\(self.logTag) contact hash changed. new contactsHash: \(contactsHash)")
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shouldNotifyDelegate = true
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} else if isUserRequested {
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Logger.info("\(self.TAG) ignoring debounce due to user request")
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Logger.info("\(self.logTag) ignoring debounce due to user request")
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shouldNotifyDelegate = true
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} else {
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@ -346,19 +366,19 @@ public class SystemContactsFetcher: NSObject {
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let expiresAtDate = Date(timeInterval: kDebounceInterval, since: lastDelegateNotificationDate)
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if Date() > expiresAtDate {
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Logger.info("\(self.TAG) debounce interval expired at: \(expiresAtDate)")
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Logger.info("\(self.logTag) debounce interval expired at: \(expiresAtDate)")
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shouldNotifyDelegate = true
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} else {
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Logger.info("\(self.TAG) ignoring since debounce interval hasn't expired")
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Logger.info("\(self.logTag) ignoring since debounce interval hasn't expired")
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}
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} else {
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Logger.info("\(self.TAG) first contact fetch. contactsHash: \(contactsHash)")
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Logger.info("\(self.logTag) first contact fetch. contactsHash: \(contactsHash)")
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shouldNotifyDelegate = true
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}
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}
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guard shouldNotifyDelegate else {
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Logger.info("\(self.TAG) no reason to notify delegate.")
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Logger.info("\(self.logTag) no reason to notify delegate.")
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completion(nil)
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@ -373,6 +393,66 @@ public class SystemContactsFetcher: NSObject {
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}
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}
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}
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@objc
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public func fetchCNContact(contactId: String,
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success successParam: @escaping (CNContact) -> Void,
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failure failureParam: @escaping () -> Void) {
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SwiftAssertIsOnMainThread(#function)
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guard authorizationStatus == .authorized else {
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Logger.error("\(logTag) contact fetch failed; no access.")
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failureParam()
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return
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}
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var backgroundTask: OWSBackgroundTask? = OWSBackgroundTask(label: "\(#function)", completionBlock: { [weak self] status in
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SwiftAssertIsOnMainThread(#function)
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guard status == .expired else {
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return
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}
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guard let _ = self else {
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return
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}
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Logger.error("background task time ran out before contact fetch completed.")
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})
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// Ensure success is invoked on main thread.
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let success: (CNContact) -> Void = { contact in
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DispatchMainThreadSafe({
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successParam(contact)
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assert(backgroundTask != nil)
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backgroundTask = nil
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})
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}
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// Ensure success is invoked on main thread.
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let failure: () -> Void = {
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DispatchMainThreadSafe({
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failureParam()
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assert(backgroundTask != nil)
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backgroundTask = nil
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})
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}
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// Don't use the serial queue.
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DispatchQueue.global().async {
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Logger.info("\(self.logTag) fetching contact")
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if let cnContact = self.contactStoreAdapter.fetchCNContact(contactId: contactId) {
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Logger.info("\(self.logTag) contact found")
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success(cnContact)
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} else {
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Logger.info("\(self.logTag) contact not found")
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failure()
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}
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}
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}
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}
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struct HashableArray<Element: Hashable>: Hashable {
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Matthew Chen
8 years ago