Added transient info storage dictionary on MXKAccount.

CHANGES.rst

@@ -5,7 +5,7 @@ Changes to be released in next version
  * 
 
 🙌 Improvements
- * 
+ * MXKAccount: added generic `others` storage dictionary (vector-im/element-ios/issues/4578)
 
 🐛 Bugfix
  * 

MatrixKit/Models/Account/MXKAccount.h

@@ -148,6 +148,11 @@ typedef BOOL (^MXKAccountOnCertificateChange)(MXKAccount *mxAccount, NSData *cer
  */
 @property (nonatomic, readonly) BOOL pushNotificationServiceIsActive;
 
+/**
+ Transient information storage.
+ */
+@property (nonatomic, strong, readonly) NSMutableDictionary<NSString *, id<NSCoding>> *others;
+
 /**
  Enable Push notification based on Apple Push Notification Service (APNS).
 

MatrixKit/Models/Account/MXKAccount.m

@@ -76,7 +76,7 @@ @interface MXKAccount ()
 
     // Background sync management
     MXOnBackgroundSyncDone backgroundSyncDone;
-    MXOnBackgroundSyncFail backgroundSyncfails;
+    MXOnBackgroundSyncFail backgroundSyncFails;
     NSTimer* backgroundSyncTimer;
 
     // Observe UIApplicationSignificantTimeChangeNotification to refresh MXRoomSummaries on time formatting change.
@@ -89,6 +89,8 @@ @interface MXKAccount ()
 @property (nonatomic, strong) id<MXBackgroundTask> backgroundTask;
 @property (nonatomic, strong) id<MXBackgroundTask> backgroundSyncBgTask;
 
+@property (nonatomic, strong) NSMutableDictionary<NSString *, id<NSCoding>> *others;
+
 @end
 
 @implementation MXKAccount
@@ -225,6 +227,8 @@ - (id)initWithCoder:(NSCoder *)coder
 
         _showDecryptedContentInNotifications = [coder decodeBoolForKey:@"showDecryptedContentInNotifications"];
 
+        _others = [coder decodeObjectForKey:@"others"];
+
         // Refresh device information
         [self loadDeviceInformation:nil failure:nil];
     }
@@ -284,6 +288,8 @@ - (void)encodeWithCoder:(NSCoder *)coder
     [coder encodeBool:_warnedAboutEncryption forKey:@"warnedAboutEncryption"];
 
     [coder encodeBool:_showDecryptedContentInNotifications forKey:@"showDecryptedContentInNotifications"];
+
+    [coder encodeObject:_others forKey:@"others"];
 }
 
 #pragma mark - Properties
@@ -614,6 +620,16 @@ - (void)setShowDecryptedContentInNotifications:(BOOL)showDecryptedContentInNotif
     [[MXKAccountManager sharedManager] saveAccounts];
 }
 
+- (NSMutableDictionary<NSString *, id<NSCoding>> *)others
+{
+    if(_others == nil) 
+    {
+        _others = [NSMutableDictionary dictionary];
+    }
+
+    return _others;
+}
+
 #pragma mark - Matrix user's profile
 
 - (void)setUserDisplayName:(NSString*)displayname success:(void (^)(void))success failure:(void (^)(NSError *error))failure
@@ -1835,9 +1851,9 @@ - (void)onBackgroundSyncDone:(NSError*)error
         backgroundSyncTimer = nil;
     }
 
-    if (backgroundSyncfails && error)
+    if (backgroundSyncFails && error)
     {
-        backgroundSyncfails(error);
+        backgroundSyncFails(error);
     }
 
     if (backgroundSyncDone && !error)
@@ -1846,7 +1862,7 @@ - (void)onBackgroundSyncDone:(NSError*)error
     }
 
     backgroundSyncDone = nil;
-    backgroundSyncfails = nil;
+    backgroundSyncFails = nil;
 
     // End background task
     if (self.backgroundSyncBgTask.isRunning)
@@ -1874,7 +1890,7 @@ - (void)backgroundSync:(unsigned int)timeout success:(void (^)(void))success fai
             MXLogDebug(@"[MXKAccount] starts a background Sync");
 
             backgroundSyncDone = success;
-            backgroundSyncfails = failure;
+            backgroundSyncFails = failure;
 
             MXWeakify(self);