Fixed an issue where the progress status displayed as zero when pasting one item (#1983)

Author: lukeblevins

Files/Commands/Paste.cs

@@ -71,6 +71,8 @@ private static async Task PasteItem(DataPackageView packageView, string destinat
             List<IStorageItem> pastedSourceItems = new List<IStorageItem>();
             HashSet<IStorageItem> pastedItems = new HashSet<IStorageItem>();
             var totalItemsSize = CalculateTotalItemsSize(itemsToPaste);
+            bool isItemSizeUnreported = totalItemsSize <= 0;
+
             foreach (IStorageItem item in itemsToPaste)
             {
                 if (item.IsOfType(StorageItemTypes.Folder))
@@ -106,9 +108,12 @@ private static async Task PasteItem(DataPackageView packageView, string destinat
                     }
                     else
                     {
-                        var pastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
-                        uint progressValue = (uint)(pastedItemSize * 100 / totalItemsSize);
-                        progress.Report(progressValue);
+                        if (!isItemSizeUnreported)
+                        {
+                            var pastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
+                            uint progressValue = (uint)(pastedItemSize * 100 / totalItemsSize);
+                            progress.Report(progressValue);
+                        }
 
                         try
                         {
@@ -128,9 +133,12 @@ await ItemViewModel.GetFolderFromPathAsync(destinationPath),
                 }
                 else if (item.IsOfType(StorageItemTypes.File))
                 {
-                    var pastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
-                    uint progressValue = (uint)(pastedItemSize * 100 / totalItemsSize);
-                    progress.Report(progressValue);
+                    if (!isItemSizeUnreported)
+                    {
+                        var pastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
+                        uint progressValue = (uint)(pastedItemSize * 100 / totalItemsSize);
+                        progress.Report(progressValue);
+                    }
 
                     try
                     {
@@ -161,10 +169,16 @@ await ItemViewModel.GetFolderFromPathAsync(destinationPath),
                     }
                 }
             }
-
-            var finalPastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
-            uint finalProgressValue = (uint)(finalPastedItemSize * 100 / totalItemsSize);
-            progress.Report(finalProgressValue);
+            if (!isItemSizeUnreported)
+            {
+                var finalPastedItemSize = await Task.Run(() => CalculateTotalItemsSize(pastedSourceItems));
+                uint finalProgressValue = (uint)(finalPastedItemSize * 100 / totalItemsSize);
+                progress.Report(finalProgressValue);
+            }
+            else
+            {
+                progress.Report(100);
+            }
 
             if (acceptedOperation == DataPackageOperation.Move)
             {