Share enhanced photos

app/lib/entity/local_file.dart

@@ -102,6 +102,13 @@ class LocalFileRepo {
   }) =>
       dataSrc.deleteFiles(files, onFailure: onFailure);
 
+  /// See [LocalFileDataSource.shareFiles]
+  Future<void> shareFiles(
+    List<LocalFile> files, {
+    LocalFileOnFailureListener? onFailure,
+  }) =>
+      dataSrc.shareFiles(files, onFailure: onFailure);
+
   final LocalFileDataSource dataSrc;
 }
 
@@ -114,4 +121,10 @@ abstract class LocalFileDataSource {
     List<LocalFile> files, {
     LocalFileOnFailureListener? onFailure,
   });
+
+  /// Share files
+  Future<void> shareFiles(
+    List<LocalFile> files, {
+    LocalFileOnFailureListener? onFailure,
+  });
 }

app/lib/entity/local_file/data_source.dart

@@ -5,6 +5,7 @@ import 'package:nc_photos/entity/local_file.dart';
 import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/mobile/android/android_info.dart';
 import 'package:nc_photos/mobile/android/k.dart' as android;
+import 'package:nc_photos/mobile/share.dart';
 import 'package:nc_photos/object_extension.dart';
 import 'package:nc_photos/stream_extension.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
@@ -28,19 +29,9 @@ class LocalFileMediaStoreDataSource implements LocalFileDataSource {
     LocalFileOnFailureListener? onFailure,
   }) async {
     _log.info("[deleteFiles] ${files.map((f) => f.logTag).toReadableString()}");
-    final uriFiles = files
-        .where((f) {
-          if (f is! LocalUriFile) {
-            _log.warning(
-                "[deleteFiles] Can't remove file not returned by this data source: $f");
-            onFailure?.call(f, ArgumentError("File not supported"), null);
-            return false;
-          } else {
-            return true;
-          }
-        })
-        .cast<LocalUriFile>()
-        .toList();
+    final uriFiles = _filterUriFiles(files, (f) {
+      onFailure?.call(f, ArgumentError("File not supported"), null);
+    });
     if (AndroidInfo().sdkInt >= AndroidVersion.R) {
       await _deleteFiles30(uriFiles, onFailure);
     } else {
@@ -48,6 +39,27 @@ class LocalFileMediaStoreDataSource implements LocalFileDataSource {
     }
   }
 
+  @override
+  shareFiles(
+    List<LocalFile> files, {
+    LocalFileOnFailureListener? onFailure,
+  }) async {
+    _log.info("[shareFiles] ${files.map((f) => f.logTag).toReadableString()}");
+    final uriFiles = _filterUriFiles(files, (f) {
+      onFailure?.call(f, ArgumentError("File not supported"), null);
+    });
+
+    final share = AndroidFileShare(uriFiles.map((e) => e.uri).toList(),
+        uriFiles.map((e) => e.mime).toList());
+    try {
+      await share.share();
+    } catch (e, stackTrace) {
+      for (final f in uriFiles) {
+        onFailure?.call(f, e, stackTrace);
+      }
+    }
+  }
+
   Future<void> _deleteFiles30(
       List<LocalUriFile> files, LocalFileOnFailureListener? onFailure) async {
     assert(AndroidInfo().sdkInt >= AndroidVersion.R);
@@ -79,6 +91,25 @@ class LocalFileMediaStoreDataSource implements LocalFileDataSource {
     }
   }
 
+  List<LocalUriFile> _filterUriFiles(
+    List<LocalFile> files, [
+    void Function(LocalFile)? nonUriFileCallback,
+  ]) {
+    return files
+        .where((f) {
+          if (f is! LocalUriFile) {
+            _log.warning(
+                "[deleteFiles] Can't remove file not returned by this data source: $f");
+            nonUriFileCallback?.call(f);
+            return false;
+          } else {
+            return true;
+          }
+        })
+        .cast<LocalUriFile>()
+        .toList();
+  }
+
   static LocalFile _toLocalFile(MediaStoreQueryResult r) => LocalUriFile(
         uri: r.uri,
         displayName: r.displayName,

app/lib/share_handler.dart

@@ -3,12 +3,16 @@ import 'dart:math';
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:kiwi/kiwi.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart';
 import 'package:nc_photos/app_db.dart';
 import 'package:nc_photos/app_localizations.dart';
+import 'package:nc_photos/debug_util.dart';
+import 'package:nc_photos/di_container.dart';
 import 'package:nc_photos/entity/file.dart';
 import 'package:nc_photos/entity/file/data_source.dart';
+import 'package:nc_photos/entity/local_file.dart';
 import 'package:nc_photos/entity/share.dart';
 import 'package:nc_photos/entity/share/data_source.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
@@ -22,6 +26,7 @@ import 'package:nc_photos/use_case/copy.dart';
 import 'package:nc_photos/use_case/create_dir.dart';
 import 'package:nc_photos/use_case/create_share.dart';
 import 'package:nc_photos/use_case/download_file.dart';
+import 'package:nc_photos/use_case/share_local.dart';
 import 'package:nc_photos/widget/processing_dialog.dart';
 import 'package:nc_photos/widget/share_link_multiple_files_dialog.dart';
 import 'package:nc_photos/widget/share_method_dialog.dart';
@@ -36,6 +41,32 @@ class ShareHandler {
     this.clearSelection,
   });
 
+  Future<void> shareLocalFiles(List<LocalFile> files) async {
+    if (!isSelectionCleared) {
+      clearSelection?.call();
+    }
+    final c = KiwiContainer().resolve<DiContainer>();
+    var hasShownError = false;
+    await ShareLocal(c)(
+      files,
+      onFailure: (f, e, stackTrace) {
+        if (e != null) {
+          _log.shout(
+              "[shareLocalFiles] Failed while sharing file: ${logFilename(f.logTag)}",
+              e,
+              stackTrace);
+          if (!hasShownError) {
+            SnackBarManager().showSnackBar(SnackBar(
+              content: Text(exception_util.toUserString(e)),
+              duration: k.snackBarDurationNormal,
+            ));
+            hasShownError = true;
+          }
+        }
+      },
+    );
+  }
+
   Future<void> shareFiles(Account account, List<File> files) async {
     try {
       final method = await _askShareMethod();

app/lib/use_case/share_local.dart

@@ -0,0 +1,26 @@
+import 'package:logging/logging.dart';
+import 'package:nc_photos/di_container.dart';
+import 'package:nc_photos/entity/local_file.dart';
+
+class ShareLocal {
+  ShareLocal(this._c) : assert(require(_c));
+
+  static bool require(DiContainer c) =>
+      DiContainer.has(c, DiType.localFileRepo);
+
+  Future<void> call(
+    List<LocalFile> files, {
+    LocalFileOnFailureListener? onFailure,
+  }) async {
+    var count = files.length;
+    await _c.localFileRepo.shareFiles(files, onFailure: (f, e, stackTrace) {
+      --count;
+      onFailure?.call(f, e, stackTrace);
+    });
+    _log.info("[call] Shared $count files successfully");
+  }
+
+  final DiContainer _c;
+
+  static final _log = Logger("use_case.share_local.ShareLocal");
+}

app/lib/widget/enhanced_photo_browser.dart

@@ -11,6 +11,7 @@ import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/content_uri_image_provider.dart';
 import 'package:nc_photos/pref.dart';
+import 'package:nc_photos/share_handler.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/widget/empty_list_indicator.dart';
@@ -160,6 +161,13 @@ class _EnhancedPhotoBrowserState extends State<EnhancedPhotoBrowser>
         });
       },
       actions: [
+        IconButton(
+          icon: const Icon(Icons.share),
+          tooltip: L10n.global().shareTooltip,
+          onPressed: () {
+            _onSelectionSharePressed(context);
+          },
+        ),
         PopupMenuButton<_SelectionMenuOption>(
           tooltip: MaterialLocalizations.of(context).moreButtonTooltip,
           itemBuilder: (context) => [
@@ -198,6 +206,21 @@ class _EnhancedPhotoBrowserState extends State<EnhancedPhotoBrowser>
     }
   }
 
+  Future<void> _onSelectionSharePressed(BuildContext context) async {
+    final selected = selectedListItems
+        .whereType<_FileListItem>()
+        .map((e) => e.file)
+        .toList();
+    await ShareHandler(
+      context: context,
+      clearSelection: () {
+        setState(() {
+          clearSelectedItems();
+        });
+      },
+    ).shareLocalFiles(selected);
+  }
+
   void _onSelectionMenuSelected(
       BuildContext context, _SelectionMenuOption option) {
     switch (option) {

app/lib/widget/local_file_viewer.dart

@@ -3,6 +3,7 @@ import 'package:logging/logging.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/entity/file_util.dart' as file_util;
 import 'package:nc_photos/entity/local_file.dart';
+import 'package:nc_photos/share_handler.dart';
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/widget/handler/delete_local_selection_handler.dart';
 import 'package:nc_photos/widget/horizontal_page_viewer.dart';
@@ -108,6 +109,13 @@ class _LocalFileViewerState extends State<LocalFileViewer> {
               shadowColor: Colors.transparent,
               foregroundColor: Colors.white.withOpacity(.87),
               actions: [
+                IconButton(
+                  icon: const Icon(Icons.share),
+                  tooltip: L10n.global().shareTooltip,
+                  onPressed: () {
+                    _onSharePressed(context);
+                  },
+                ),
                 PopupMenuButton<_AppBarMenuOption>(
                   tooltip: MaterialLocalizations.of(context).moreButtonTooltip,
                   itemBuilder: (context) => [
@@ -126,6 +134,12 @@ class _LocalFileViewerState extends State<LocalFileViewer> {
     );
   }
 
+  Future<void> _onSharePressed(BuildContext context) async {
+    final file = widget.streamFiles[_viewerController.currentPage];
+    _log.info("[_onSharePressed] Sharing file: ${file.logTag}");
+    await ShareHandler(context: context).shareLocalFiles([file]);
+  }
+
   void _onMenuSelected(BuildContext context, _AppBarMenuOption option) {
     switch (option) {
       case _AppBarMenuOption.delete: