[ios, osx] Include progress in progress change notification

An MGLOfflinePackProgressChangedNotification notification now includes the pack’s state and progress values, which match the values in the corresponding MGLOfflinePack properties. Implemented NSValue category methods to store MGLOfflinePackProgress inside a dictionary.

1 files changed, 6 insertions, 1 deletions

diff --git a/platform/darwin/src/MGLOfflineStorage.mm b/platform/darwin/src/MGLOfflineStorage.mm
index 619e4ce1ab..3d171ca203 100644
--- a/platform/darwin/src/MGLOfflineStorage.mm
+++ b/platform/darwin/src/MGLOfflineStorage.mm
@@ -15,6 +15,8 @@ NSString * const MGLOfflinePackProgressChangedNotification = @"MGLOfflinePackPro
 NSString * const MGLOfflinePackErrorNotification = @"MGLOfflinePackError";
 NSString * const MGLOfflinePackMaximumMapboxTilesReachedNotification = @"MGLOfflinePackMaximumMapboxTilesReached";
 
+NSString * const MGLOfflinePackStateUserInfoKey = @"State";
+NSString * const MGLOfflinePackProgressUserInfoKey = @"Progress";
 NSString * const MGLOfflinePackErrorUserInfoKey = @"Error";
 NSString * const MGLOfflinePackMaximumCountUserInfoKey = @"MaximumCount";
 
@@ -242,7 +244,10 @@ NSString * const MGLOfflinePackMaximumCountUserInfoKey = @"MaximumCount";
 #pragma mark MGLOfflinePackDelegate methods
 
 - (void)offlinePack:(MGLOfflinePack *)pack progressDidChange:(__unused MGLOfflinePackProgress)progress {
-    [[NSNotificationCenter defaultCenter] postNotificationName:MGLOfflinePackProgressChangedNotification object:pack];
+    [[NSNotificationCenter defaultCenter] postNotificationName:MGLOfflinePackProgressChangedNotification object:pack userInfo:@{
+        MGLOfflinePackStateUserInfoKey: @(pack.state),
+        MGLOfflinePackProgressUserInfoKey: [NSValue valueWithMGLOfflinePackProgress:progress],
+    }];
 }
 
 - (void)offlinePack:(MGLOfflinePack *)pack didReceiveError:(NSError *)error {