Fix: Display tags on network drives when selecting tag (#12420)

Author: gave92

src/Files.App/Filesystem/Search/FolderSearch.cs

@@ -111,9 +111,16 @@ public Task SearchAsync(IList<ListedItem> results, CancellationToken token)
 
 		private async Task AddItemsAsyncForHome(IList<ListedItem> results, CancellationToken token)
 		{
-			foreach (var drive in drivesViewModel.Drives.Cast<DriveItem>().Where(x => !x.IsNetwork))
+			if (AQSQuery.StartsWith("tag:", StringComparison.Ordinal))
+			{
+				await SearchTagsAsync("", results, token); // Search tags everywhere, not only local drives
+			}
+			else
 			{
-				await AddItemsAsync(drive.Path, results, token);
+				foreach (var drive in drivesViewModel.Drives.Cast<DriveItem>().Where(x => !x.IsNetwork))
+				{
+					await AddItemsAsync(drive.Path, results, token);
+				}
 			}
 		}
 

src/Files.Shared/FileTagsDb.cs

@@ -160,6 +160,8 @@ public IEnumerable<TaggedFile> GetAll()
 		public IEnumerable<TaggedFile> GetAllUnderPath(string folderPath)
 		{
 			var col = db.GetCollection<TaggedFile>(TaggedFiles);
+			if (string.IsNullOrEmpty(folderPath))
+				return col.FindAll();
 			return col.Find(x => x.FilePath.StartsWith(folderPath, StringComparison.OrdinalIgnoreCase));
 		}