Export project (#219)

* Backup project option

* Bump version

lib/home/ui/project_thumbnail.dart

@@ -1,11 +1,13 @@
 import 'dart:io';
+import 'package:archive/archive_io.dart';
 import 'package:flutter/material.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:mooltik/common/data/project/project.dart';
 import 'package:mooltik/common/ui/labeled_icon_button.dart';
 import 'package:mooltik/common/ui/popup_with_arrow.dart';
 import 'package:mooltik/drawing/ui/frame_window.dart';
 import 'package:provider/provider.dart';
+import 'package:share_plus/share_plus.dart';
 
 import '../data/gallery_model.dart';
 
@@ -110,6 +112,12 @@ class _ProjectThumbnailState extends State<ProjectThumbnail> {
             color: Theme.of(context).colorScheme.onPrimary,
             onTap: _moveToBin,
           ),
+          LabeledIconButton(
+            icon: FontAwesomeIcons.fileArchive,
+            label: 'Backup',
+            color: Theme.of(context).colorScheme.onPrimary,
+            onTap: _exportBackup,
+          ),
         ],
       ),
     );
@@ -128,6 +136,13 @@ class _ProjectThumbnailState extends State<ProjectThumbnail> {
   void _moveToBin() {
     context.read<GalleryModel>().moveProjectToBin(context.read<Project>());
   }
+
+  void _exportBackup() async {
+    final project = context.read<Project>();
+    final zipEncoder = ZipFileEncoder();
+    zipEncoder.zipDirectory(project.directory);
+    await Share.shareFiles([zipEncoder.zip_path]);
+  }
 }
 
 class _Thumbnail extends StatelessWidget {

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.14.1
+version: 1.15.0
 
 environment:
   sdk: '>=2.12.0 <3.0.0'