Share assets from mobile to other apps (#435)

* Share unique assets

* Style share preparing dialog

* Share assets from multiselect

* Fix i18n

* Use navigator like in delete dialog

* Center bottom-bar buttons

mobile/lib/modules/asset_viewer/providers/image_viewer_page_state.provider.dart

@@ -1,15 +1,19 @@
+import 'package:auto_route/auto_route.dart';
 import 'package:flutter/material.dart';
 import 'package:fluttertoast/fluttertoast.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/modules/asset_viewer/models/image_viewer_page_state.model.dart';
 import 'package:immich_mobile/modules/asset_viewer/services/image_viewer.service.dart';
+import 'package:immich_mobile/shared/services/share.service.dart';
 import 'package:immich_mobile/shared/ui/immich_toast.dart';
+import 'package:immich_mobile/shared/ui/share_dialog.dart';
 import 'package:openapi/api.dart';
 
 class ImageViewerStateNotifier extends StateNotifier<ImageViewerPageState> {
   final ImageViewerService _imageViewerService;
+  final ShareService _shareService;
 
-  ImageViewerStateNotifier(this._imageViewerService)
+  ImageViewerStateNotifier(this._imageViewerService, this._shareService)
       : super(
           ImageViewerPageState(
             downloadAssetStatus: DownloadAssetStatus.idle,
@@ -42,9 +46,23 @@ class ImageViewerStateNotifier extends StateNotifier<ImageViewerPageState> {
 
     state = state.copyWith(downloadAssetStatus: DownloadAssetStatus.idle);
   }
+
+  void shareAsset(AssetResponseDto asset, BuildContext context) async {
+    showDialog(
+      context: context,
+      builder: (BuildContext buildContext) {
+        _shareService
+            .shareAsset(asset)
+            .then((_) => Navigator.of(buildContext).pop());
+        return const ShareDialog();
+      },
+      barrierDismissible: false,
+    );
+  }
 }
 
 final imageViewerStateProvider =
     StateNotifierProvider<ImageViewerStateNotifier, ImageViewerPageState>(
-  ((ref) => ImageViewerStateNotifier(ref.watch(imageViewerServiceProvider))),
+  ((ref) => ImageViewerStateNotifier(
+      ref.watch(imageViewerServiceProvider), ref.watch(shareServiceProvider))),
 );

mobile/lib/modules/asset_viewer/ui/top_control_app_bar.dart

@@ -11,12 +11,14 @@ class TopControlAppBar extends ConsumerWidget with PreferredSizeWidget {
     required this.asset,
     required this.onMoreInfoPressed,
     required this.onDownloadPressed,
+    required this.onSharePressed,
     this.loading = false
   }) : super(key: key);
 
   final AssetResponseDto asset;
   final Function onMoreInfoPressed;
   final Function onDownloadPressed;
+  final Function onSharePressed;
   final bool loading;
 
   @override
@@ -63,6 +65,14 @@ class TopControlAppBar extends ConsumerWidget with PreferredSizeWidget {
               ? const Icon(Icons.favorite_rounded)
               : const Icon(Icons.favorite_border_rounded),
         ),
+        IconButton(
+          iconSize: iconSize,
+          splashRadius: iconSize,
+          onPressed: () {
+            onSharePressed();
+          },
+          icon: const Icon(Icons.share),
+        ),
         IconButton(
           iconSize: iconSize,
           splashRadius: iconSize,

mobile/lib/modules/asset_viewer/views/gallery_viewer.dart

@@ -84,6 +84,10 @@ class GalleryViewerPage extends HookConsumerWidget {
           ref
               .watch(imageViewerStateProvider.notifier)
               .downloadAsset(assetList[indexOfAsset], context);
+        }, onSharePressed: () {
+          ref
+              .watch(imageViewerStateProvider.notifier)
+              .shareAsset(assetList[indexOfAsset], context);
         },
       ),
       body: SafeArea(