Can post PDFs

lib/helpers/api_helper.dart

@@ -56,8 +56,11 @@ class APIHelper {
           var v = request.bytesFiles[key];
           data.files.add(MapEntry(
               key,
-              MultipartFile.fromBytes(v.bytes,
+              MultipartFile.fromBytes(
-                  filename: v.filename.split("/").last)));
+                v.bytes,
+                filename: v.filename.split("/").last,
+                contentType: v.type,
+              )));
         }
       }
 

lib/helpers/posts_helper.dart

@@ -11,6 +11,7 @@ import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/displayed_content.dart';
 import 'package:comunic/models/new_post.dart';
 import 'package:comunic/models/post.dart';
+import 'package:http_parser/http_parser.dart';
 
 /// Posts helper
 ///
@@ -76,7 +77,8 @@ class PostsHelper {
   /// Get the list of posts of a user
   Future<PostsList> getUserPosts(int userID, {int from = 0}) async {
     final response = await (APIRequest(uri: "posts/get_user", needLogin: true)
-      ..addInt("userID", userID)..addInt("startFrom", from == 0 ? 0 : from - 1))
+          ..addInt("userID", userID)
+          ..addInt("startFrom", from == 0 ? 0 : from - 1))
         .exec();
 
     if (response.code != 200) return null;
@@ -93,7 +95,8 @@ class PostsHelper {
   /// Get the list of posts of a group
   Future<PostsList> getGroupPosts(int groupID, {int from = 0}) async {
     final response = await (APIRequest(uri: "posts/get_group", needLogin: true)
-      ..addInt("groupID", groupID)..addInt("startFrom", from == 0 ? 0 : from - 1))
+          ..addInt("groupID", groupID)
+          ..addInt("startFrom", from == 0 ? 0 : from - 1))
         .exec();
 
     if (response.code != 200) return null;
@@ -143,6 +146,13 @@ class PostsHelper {
         request.addFile("image", post.image);
         break;
 
+      case PostKind.PDF:
+        request.addBytesFile(
+            "pdf",
+            BytesFile("file.pdf", post.pdf,
+                type: MediaType.parse("application/pdf")));
+        break;
+
       default:
         throw Exception("Unsupported post type :" + post.kind.toString());
         break;

lib/models/api_request.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:comunic/helpers/api_helper.dart';
 import 'package:comunic/models/api_response.dart';
+import 'package:http_parser/http_parser.dart';
 import 'package:meta/meta.dart';
 
 /// API Request model
@@ -13,8 +14,13 @@ import 'package:meta/meta.dart';
 class BytesFile {
   final String filename;
   final List<int> bytes;
+  final MediaType type;
 
-  BytesFile(this.filename, this.bytes);
+  const BytesFile(
+    this.filename,
+    this.bytes, {
+    this.type,
+  });
 }
 
 class APIRequest {

lib/models/new_post.dart

@@ -15,19 +15,22 @@ class NewPost {
   final PostVisibilityLevel visibility;
   final String content;
   final File image;
+  final List<int> pdf;
   final PostKind kind;
 
-  NewPost({
+  const NewPost({
     @required this.target,
     @required this.targetID,
     @required this.visibility,
     @required this.content,
     @required this.kind,
     @required this.image,
+    @required this.pdf,
   })  : assert(target != null),
         assert(targetID != null),
         assert(visibility != null),
         assert(content != null),
         assert(kind != PostKind.TEXT || content.length > 3),
-        assert(kind != PostKind.IMAGE || image != null);
+        assert(kind != PostKind.IMAGE || image != null),
+        assert(kind != PostKind.PDF || pdf != null);
 }

lib/ui/widgets/post_create_form_widget.dart

@@ -9,6 +9,7 @@ import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/post_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
+import 'package:file_picker_cross/file_picker_cross.dart';
 import 'package:flutter/material.dart';
 
 /// Widget that allows to create posts
@@ -47,15 +48,20 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
   final TextEditingController _postTextController = TextEditingController();
   PostVisibilityLevel _postVisibilityLevel;
   File _postImage;
+  List<int> _postPDF;
 
   bool get hasImage => _postImage != null;
 
+  bool get hasPDF => _postPDF != null;
+
   bool get canSubmitForm =>
-      !_isCreating && _postTextController.text.length > 5 || hasImage;
+      !_isCreating && _postTextController.text.length > 5 || hasImage || hasPDF;
 
   PostKind get postKind {
     if (hasImage)
       return PostKind.IMAGE;
+    else if (hasPDF)
+      return PostKind.PDF;
     else
       return PostKind.TEXT;
   }
@@ -102,6 +108,13 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
                 onTap: _pickImageForPost,
               ),
 
+              // Include PDF button
+              _PostOptionWidget(
+                icon: Icons.picture_as_pdf,
+                selected: postKind == PostKind.PDF,
+                onTap: _pickPDFForPost,
+              ),
+
               Expanded(
                 child: Container(),
               ),
@@ -159,6 +172,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
   void _resetPostSelection() {
     setState(() {
       _postImage = null;
+      _postPDF = null;
     });
   }
 
@@ -175,6 +189,27 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
     });
   }
 
+  /// Pick a PDF for the new post
+  Future<void> _pickPDFForPost() async {
+    try {
+      final picker = FilePickerCross(
+        type: FileTypeCross.custom,
+        fileExtension: "pdf",
+      );
+
+      if (!await picker.pick()) return;
+
+      _resetPostSelection();
+
+      setState(() {
+        this._postPDF = picker.toUint8List();
+      });
+    } catch (e, stack) {
+      print("Pick PDF error: $e\n$stack");
+      showSimpleSnack(context, tr("Could not pick a PDF!"));
+    }
+  }
+
   /// Submit new post
   Future<void> _submitForm() async {
     if (!canSubmitForm)
@@ -190,6 +225,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
         content: _postTextController.text,
         kind: postKind,
         image: _postImage,
+        pdf: _postPDF,
       ));
       setState(() => _isCreating = false);
 

pubspec.lock

@@ -113,6 +113,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
+  file_picker:
+    dependency: transitive
+    description:
+      name: file_picker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.3+2"
+  file_picker_cross:
+    dependency: "direct main"
+    description:
+      name: file_picker_cross
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -171,7 +185,7 @@ packages:
     source: hosted
     version: "0.12.0+4"
   http_parser:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: http_parser
       url: "https://pub.dartlang.org"

pubspec.yaml

@@ -35,6 +35,7 @@ dependencies:
 
   # The HTTP client is used to make requests on the Comunic API
   dio: ^3.0.9
+  http_parser: ^3.1.3
 
   # This plugins allows to load remote images
   cached_network_image: ^2.0.0
@@ -81,6 +82,9 @@ dependencies:
   # Prevent phone from auto-locking during calls
   wakelock: ^0.1.4+1
 
+  # Pick any kind of file
+  file_picker_cross: ^1.2.1
+
 dev_dependencies:
   flutter_test:
     sdk: flutter