[ios, osx] Add a property for bytes used by offline tiles

2 files changed, 6 insertions, 1 deletions

diff --git a/platform/darwin/src/MGLOfflinePack.h b/platform/darwin/src/MGLOfflinePack.h
index 083e050ddd..0584abe225 100644
--- a/platform/darwin/src/MGLOfflinePack.h
+++ b/platform/darwin/src/MGLOfflinePack.h
@@ -60,10 +60,14 @@ typedef struct MGLOfflinePackProgress {
      */
     uint64_t countOfResourcesCompleted;
     /**
-     The cumulative size of the downloaded resources on disk, measured in bytes.
+     The cumulative size of the downloaded resources (inclusive of tiles) on disk, measured in bytes.
      */
     uint64_t countOfBytesCompleted;
     /**
+     The cumulative size of the downloaded tiles on disk, measured in bytes.
+     */
+    uint64_t countOfTileBytesCompleted;
+    /**
      The minimum number of resources that must be downloaded in order to view
      the pack’s full region without any omissions.
      
diff --git a/platform/darwin/src/MGLOfflinePack.mm b/platform/darwin/src/MGLOfflinePack.mm
index 9c8396f728..72806929ee 100644
--- a/platform/darwin/src/MGLOfflinePack.mm
+++ b/platform/darwin/src/MGLOfflinePack.mm
@@ -153,6 +153,7 @@ private:
     MGLOfflinePackProgress progress;
     progress.countOfResourcesCompleted = status.completedResourceCount;
     progress.countOfBytesCompleted = status.completedResourceSize;
+    progress.countOfTileBytesCompleted = status.completedTileSize;
     progress.countOfResourcesExpected = status.requiredResourceCount;
     progress.maximumResourcesExpected = status.requiredResourceCountIsPrecise ? status.requiredResourceCount : UINT64_MAX;
     self.progress = progress;