Localize tab headers from desktop.ini / Support user level folder name localization for tabs. (#3319)

Author: suvrat29

Files/Views/MainPage.xaml.cs

@@ -1,4 +1,5 @@
 using Files.Common;
+using Files.Enums;
 using Files.Filesystem;
 using Files.Helpers;
 using Files.UserControls.MultitaskingControl;
@@ -250,17 +251,14 @@ public static async Task AddNewTabByPathAsync(Type type, string path, int atInde
                 NavigationArg = path
             };
             tabItem.Control.ContentChanged += Control_ContentChanged;
-            await SetSelectedTabInfoAsync(tabItem, path);
+            await UpdateTabInfo(tabItem, path);
             AppInstances.Insert(atIndex == -1 ? AppInstances.Count : atIndex, tabItem);
         }
 
-        private static async Task SetSelectedTabInfoAsync(TabItem selectedTabItem, string currentPath, string tabHeader = null)
+        private static async Task<(string tabLocationHeader, Microsoft.UI.Xaml.Controls.IconSource tabIcon)> GetSelectedTabInfoAsync(string currentPath)
         {
-            selectedTabItem.AllowStorageItemDrop = true;
-
             string tabLocationHeader;
             Microsoft.UI.Xaml.Controls.FontIconSource fontIconSource = new Microsoft.UI.Xaml.Controls.FontIconSource();
-            Microsoft.UI.Xaml.Controls.IconSource tabIcon;
             fontIconSource.FontFamily = App.Current.Resources["FluentUIGlyphs"] as FontFamily;
 
             if (currentPath == null || currentPath == "SidebarSettings/Text".GetLocalized())
@@ -332,7 +330,7 @@ private static async Task SetSelectedTabInfoAsync(TabItem selectedTabItem, strin
 
                         if (matchingDrive != null)
                         {
-                            //Go through types and set the icon according to type
+                            // Go through types and set the icon according to type
                             string type = GetDriveTypeIcon(matchingDrive);
                             if (!string.IsNullOrWhiteSpace(type))
                             {
@@ -359,15 +357,20 @@ private static async Task SetSelectedTabInfoAsync(TabItem selectedTabItem, strin
                 {
                     fontIconSource.Glyph = "\xea55";    //Folder icon
                     tabLocationHeader = currentPath.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar).Split('\\', StringSplitOptions.RemoveEmptyEntries).Last();
+
+                    FilesystemResult<StorageFolderWithPath> rootItem = await FilesystemTasks.Wrap(() => DrivesManager.GetRootFromPathAsync(currentPath));
+                    if (rootItem)
+                    {
+                        StorageFolder currentFolder = await FilesystemTasks.Wrap(() => StorageFileExtensions.DangerousGetFolderFromPathAsync(currentPath, rootItem));
+                        if (currentFolder != null && !string.IsNullOrEmpty(currentFolder.DisplayName))
+                        {
+                            tabLocationHeader = currentFolder.DisplayName;
+                        }
+                    }
                 }
             }
-            if (tabHeader != null)
-            {
-                tabLocationHeader = tabHeader;
-            }
-            tabIcon = fontIconSource;
-            selectedTabItem.Header = tabLocationHeader;
-            selectedTabItem.IconSource = tabIcon;
+
+            return (tabLocationHeader, fontIconSource);
         }
 
         private static async void Control_ContentChanged(object sender, TabItemArguments e)
@@ -382,22 +385,24 @@ private static async void Control_ContentChanged(object sender, TabItemArguments
 
         private static async Task UpdateTabInfo(TabItem tabItem, object navigationArg)
         {
+            tabItem.AllowStorageItemDrop = true;
             if (navigationArg is PaneNavigationArguments paneArgs)
             {
-                var leftHeader = !string.IsNullOrEmpty(paneArgs.LeftPaneNavPathParam) ? new DirectoryInfo(paneArgs.LeftPaneNavPathParam).Name : null;
-                var rightHeader = !string.IsNullOrEmpty(paneArgs.RightPaneNavPathParam) ? new DirectoryInfo(paneArgs.RightPaneNavPathParam).Name : null;
-                if (leftHeader != null && rightHeader != null)
+                if (!string.IsNullOrEmpty(paneArgs.LeftPaneNavPathParam) && !string.IsNullOrEmpty(paneArgs.RightPaneNavPathParam))
                 {
-                    await SetSelectedTabInfoAsync(tabItem, paneArgs.LeftPaneNavPathParam, $"{leftHeader} | {rightHeader}");
+                    var leftTabInfo = await GetSelectedTabInfoAsync(paneArgs.LeftPaneNavPathParam);
+                    var rightTabInfo = await GetSelectedTabInfoAsync(paneArgs.RightPaneNavPathParam);
+                    tabItem.Header = $"{leftTabInfo.tabLocationHeader} | {rightTabInfo.tabLocationHeader}";
+                    tabItem.IconSource = leftTabInfo.tabIcon;
                 }
                 else
                 {
-                    await SetSelectedTabInfoAsync(tabItem, paneArgs.LeftPaneNavPathParam);
+                    (tabItem.Header, tabItem.IconSource) = await GetSelectedTabInfoAsync(paneArgs.LeftPaneNavPathParam);
                 }
             }
             else if (navigationArg is string pathArgs)
             {
-                await SetSelectedTabInfoAsync(tabItem, pathArgs);
+                (tabItem.Header, tabItem.IconSource) = await GetSelectedTabInfoAsync(pathArgs);
             }
         }