Merge pull request #74 from krawieck/post-creation-pictrs

ios/Runner/Info.plist

@@ -41,5 +41,13 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
+
+	<!-- Image picker -->
+	<key>NSPhotoLibraryUsageDescription</key>
+	<string>For uploading images for posts/avatars</string>
+	<key>NSCameraUsageDescription</key>
+	<string>For uploading images for posts/avatars</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>For recording videos for posts</string>
 </dict>
 </plist>

lib/hooks/image_picker.dart

@@ -0,0 +1,4 @@
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:image_picker/image_picker.dart';
+
+ImagePicker useImagePicker() => useMemoized(() => ImagePicker());

lib/pages/create_post.dart

@@ -1,14 +1,17 @@
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:image_picker/image_picker.dart';
 import 'package:lemmy_api_client/lemmy_api_client.dart';
 
 import '../hooks/delayed_loading.dart';
+import '../hooks/image_picker.dart';
 import '../hooks/logged_in_action.dart';
 import '../hooks/memo_future.dart';
 import '../hooks/stores.dart';
 import '../util/extensions/api.dart';
 import '../util/goto.dart';
+import '../util/pictrs.dart';
 import '../util/spaced.dart';
 import '../widgets/markdown_text.dart';
 import 'full_post.dart';
@@ -48,6 +51,9 @@ class CreatePost extends HookWidget {
     final showFancy = useState(false);
     final nsfw = useState(false);
     final delayed = useDelayedLoading();
+    final imagePicker = useImagePicker();
+    final imageUploadLoading = useState(false);
+    final pictrsDeleteToken = useState<PictrsUploadFile>(null);
 
     final allCommunitiesSnap = useMemoFuture(
       () => LemmyApi(selectedInstance.value)
@@ -66,6 +72,39 @@ class CreatePost extends HookWidget {
       [selectedInstance.value],
     );
 
+    uploadPicture() async {
+      try {
+        final pic = await imagePicker.getImage(source: ImageSource.gallery);
+        // pic is null when the picker was cancelled
+        if (pic != null) {
+          imageUploadLoading.value = true;
+
+          final pictrs = LemmyApi(selectedInstance.value).pictrs;
+          final upload = await pictrs.upload(pic.path);
+
+          pictrsDeleteToken.value = upload.files[0];
+          urlController.text =
+              pathToPictrs(selectedInstance.value, upload.files[0].file);
+        }
+        // ignore: avoid_catches_without_on_clauses
+      } catch (e) {
+        scaffoldKey.currentState
+            .showSnackBar(SnackBar(content: Text('Failed to upload image')));
+      } finally {
+        imageUploadLoading.value = false;
+      }
+    }
+
+    removePicture() {
+      LemmyApi(selectedInstance.value)
+          .pictrs
+          .delete(pictrsDeleteToken.value)
+          .catchError((_) {});
+
+      pictrsDeleteToken.value = null;
+      urlController.text = '';
+    }
+
     // TODO: use drop down from AddAccountPage
     final instanceDropdown = InputDecorator(
       decoration: const InputDecoration(
@@ -113,13 +152,30 @@ class CreatePost extends HookWidget {
       ),
     );
 
-    final url = TextField(
-      controller: urlController,
-      decoration: InputDecoration(
-          border: OutlineInputBorder(),
-          labelText: 'URL',
-          suffixIcon: Icon(Icons.link)),
-    );
+    final url = Row(children: [
+      Expanded(
+        child: TextField(
+          enabled: pictrsDeleteToken.value == null,
+          controller: urlController,
+          decoration: InputDecoration(
+              border: OutlineInputBorder(),
+              labelText: 'URL',
+              suffixIcon: Icon(Icons.link)),
+        ),
+      ),
+      SizedBox(width: 5),
+      IconButton(
+        icon: imageUploadLoading.value
+            ? CircularProgressIndicator()
+            : Icon(pictrsDeleteToken.value == null
+                ? Icons.add_photo_alternate
+                : Icons.close),
+        onPressed:
+            pictrsDeleteToken.value == null ? uploadPicture : removePicture,
+        tooltip:
+            pictrsDeleteToken.value == null ? 'Add picture' : 'Delete picture',
+      )
+    ]);
 
     final title = TextField(
       controller: titleController,

lib/util/pictrs.dart

@@ -0,0 +1,2 @@
+String pathToPictrs(String instanceUrl, String imgId) =>
+    'https://$instanceUrl/pictrs/image/$imgId';

pubspec.lock

@@ -265,6 +265,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0+2"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.11"
   flutter_slidable:
     dependency: "direct main"
     description:
@@ -338,6 +345,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.4"
+  image_picker:
+    dependency: "direct main"
+    description:
+      name: image_picker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.7+12"
+  image_picker_platform_interface:
+    dependency: transitive
+    description:
+      name: image_picker_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
   intl:
     dependency: transitive
     description:
@@ -379,7 +400,7 @@ packages:
       name: lemmy_api_client
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.0"
+    version: "0.7.3"
   logging:
     dependency: transitive
     description:

pubspec.yaml

@@ -34,6 +34,7 @@ dependencies:
   url_launcher: ^5.5.1
   shared_preferences: ">=0.5.0 <2.0.0"
   package_info: ^0.4.3
+  image_picker: ^0.6.7
 
   # state management
   flutter_hooks: ^0.13.2
@@ -44,7 +45,7 @@ dependencies:
   # utils
   timeago: ^2.0.27
   fuzzy: <1.0.0
-  lemmy_api_client: ^0.6.0
+  lemmy_api_client: ^0.7.3
 
   flutter:
     sdk: flutter