Can create YouTube posts

lib/helpers/posts_helper.dart

@@ -167,6 +167,10 @@ class PostsHelper {
         request.addString("answers", post.survey.answers.join("<>"));
         break;
 
+      case PostKind.YOUTUBE:
+        request.addString("youtube_id", post.youtubeId);
+        break;
+
       default:
         throw Exception("Unsupported post type :" + post.kind.toString());
         break;

lib/models/new_post.dart

@@ -31,6 +31,7 @@ class NewPost {
   final PostKind kind;
   final DateTime timeEnd;
   final NewSurvey survey;
+  final String youtubeId;
 
   const NewPost({
     @required this.target,
@@ -43,6 +44,7 @@ class NewPost {
     @required this.pdf,
     @required this.timeEnd,
     @required this.survey,
+    @required this.youtubeId,
   })  : assert(target != null),
         assert(targetID != null),
         assert(visibility != null),
@@ -52,5 +54,6 @@ class NewPost {
         assert(kind != PostKind.WEB_LINK || url != null),
         assert(kind != PostKind.PDF || pdf != null),
         assert(kind != PostKind.COUNTDOWN || timeEnd != null),
-        assert(kind != PostKind.SURVEY || survey != null);
+        assert(kind != PostKind.SURVEY || survey != null),
+        assert(kind != PostKind.YOUTUBE || youtubeId != null);
 }

lib/ui/dialogs/input_url_dialog.dart

@@ -0,0 +1,28 @@
+import 'package:comunic/ui/dialogs/single_input_dialog.dart';
+import 'package:comunic/utils/input_utils.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// Ask the user to enter an URL
+///
+/// @author Pierre Hubert
+
+/// Ask the user to enter an URL
+Future<String> showInputURLDialog({
+  @required BuildContext context,
+  @required String title,
+  String initialURL,
+}) async {
+  return await showDialog(
+    context: context,
+    builder: (c) => SingleInputDialog(
+      title: title,
+      icon: Icons.link,
+      initialValue: initialURL,
+      label: "http://...",
+      checkInput: (s) => validateUrl(s),
+      errorMessage: tr("Invalid URL!"),
+    ),
+  );
+}

lib/ui/dialogs/input_youtube_link_dialog.dart

@@ -0,0 +1,29 @@
+import 'package:comunic/ui/dialogs/single_input_dialog.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// Add YouTube link dialog
+///
+/// @author Pierre Hubert
+
+/// Ask the user to input a YouTube ID
+Future<String> showInputYouTubeIDDialog(
+    BuildContext context, String initialID) async {
+  final value = await showDialog<String>(
+      context: context,
+      builder: (b) => SingleInputDialog(
+            title: tr("Input YouTube URL"),
+            icon: Icons.ondemand_video,
+            initialValue: initialID == null
+                ? null
+                : "https://www.youtube.com/watch/?v=" + initialID,
+            label: tr("https://www.youtube.com/watch/?v="),
+            checkInput: (s) => RegExp(r'watch\/\?v=[\w\-\_]+').hasMatch(s),
+            errorMessage: tr("Invalid YouTube link!"),
+          ));
+
+  if (value == null) return null;
+
+  return value.split("v=")[1].split("&")[0].split("#")[0];
+}

lib/ui/dialogs/single_input_dialog.dart

@@ -1,52 +1,45 @@
-import 'package:comunic/utils/input_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 /// Ask the user to enter an URL
-///
-/// @author Pierre Hubert
-
-/// Ask the user to enter an URL
-Future<String> showInputURLDialog({
-  @required BuildContext context,
-  @required String title,
-  String initialURL,
-}) async {
-  return await showDialog(
-    context: context,
-    builder: (c) => _InputURLDialog(
-      title: title,
-      initialURL: initialURL,
-    ),
-  );
-}
-
-class _InputURLDialog extends StatefulWidget {
+class SingleInputDialog extends StatefulWidget {
   final String title;
-  final String initialURL;
+  final IconData icon;
+  final String initialValue;
+  final String label;
+  final bool Function(String) checkInput;
+  final String errorMessage;
 
-  const _InputURLDialog({
+  const SingleInputDialog({
     Key key,
     @required this.title,
-    @required this.initialURL,
+    @required this.icon,
+    @required this.initialValue,
+    @required this.label,
+    @required this.checkInput,
+    @required this.errorMessage,
   })  : assert(title != null),
+        assert(icon != null),
+        assert(label != null),
+        assert(checkInput != null),
+        assert(errorMessage != null),
         super(key: key);
 
   @override
   __InputURLDialogState createState() => __InputURLDialogState();
 }
 
-class __InputURLDialogState extends State<_InputURLDialog> {
+class __InputURLDialogState extends State<SingleInputDialog> {
   TextEditingController _controller;
 
   bool get _isValid =>
-      _controller.text.isNotEmpty && validateUrl(_controller.text);
+      _controller.text.isNotEmpty && widget.checkInput(_controller.text);
 
   @override
   void initState() {
     super.initState();
-    _controller = new TextEditingController(text: widget.initialURL);
+    _controller = new TextEditingController(text: widget.initialValue);
   }
 
   @override
@@ -57,11 +50,11 @@ class __InputURLDialogState extends State<_InputURLDialog> {
         controller: _controller,
         onChanged: (s) => setState(() {}),
         decoration: InputDecoration(
-          icon: Icon(Icons.link),
+          icon: Icon(widget.icon),
           alignLabelWithHint: true,
-          labelText: "http://...",
+          labelText: widget.label,
           errorText: _controller.text.isNotEmpty && !_isValid
-              ? tr("Invalid URL!")
+              ? widget.errorMessage
               : null,
         ),
       ),

lib/ui/widgets/post_create_form_widget.dart

@@ -5,8 +5,9 @@ import 'package:comunic/enums/post_target.dart';
 import 'package:comunic/enums/post_visibility_level.dart';
 import 'package:comunic/helpers/posts_helper.dart';
 import 'package:comunic/models/new_post.dart';
+import 'package:comunic/ui/dialogs/input_url_dialog.dart';
+import 'package:comunic/ui/dialogs/input_youtube_link_dialog.dart';
 import 'package:comunic/ui/dialogs/new_survey_dialog.dart';
-import 'package:comunic/ui/dialogs/url_dialog.dart';
 import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/post_utils.dart';
@@ -54,6 +55,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
   List<int> _postPDF;
   DateTime _timeEnd;
   NewSurvey _postSurvey;
+  String _youtubeID;
 
   bool get hasImage => _postImage != null;
 
@@ -65,6 +67,8 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
 
   bool get hasSurvey => _postSurvey != null;
 
+  bool get hasYoutTubeID => _youtubeID != null;
+
   bool get canSubmitForm =>
       !_isCreating && _postTextController.text.length > 5 ||
       postKind != PostKind.TEXT;
@@ -80,6 +84,8 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
       return PostKind.COUNTDOWN;
     else if (hasSurvey)
       return PostKind.SURVEY;
+    else if (hasYoutTubeID)
+      return PostKind.YOUTUBE;
     else
       return PostKind.TEXT;
   }
@@ -158,6 +164,13 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
                         selected: postKind == PostKind.SURVEY,
                         onTap: _pickSurvey,
                       ),
+
+                      // Specify YouTube video ID
+                      _PostOptionWidget(
+                        icon: Icons.ondemand_video,
+                        selected: postKind == PostKind.YOUTUBE,
+                        onTap: _pickYouTubeVideo,
+                      ),
                     ],
                   ),
                 ),
@@ -222,6 +235,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
       _postPDF = null;
       _timeEnd = null;
       _postSurvey = null;
+      _youtubeID = null;
     });
   }
 
@@ -322,6 +336,20 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
     });
   }
 
+  /// Pick a new YouTube video
+  Future<void> _pickYouTubeVideo() async {
+
+    final youtubeID = await showInputYouTubeIDDialog(context, _youtubeID);
+
+    if (youtubeID == null) return;
+
+    _resetPostSelection();
+    setState(() {
+      _youtubeID = youtubeID;
+    });
+
+  }
+
   /// Submit new post
   Future<void> _submitForm() async {
     if (!canSubmitForm)
@@ -331,16 +359,18 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
 
     try {
       await _postHelper.createPost(NewPost(
-          target: widget.postTarget,
-          targetID: widget.targetID,
-          visibility: _postVisibilityLevel,
-          content: _postTextController.text,
-          kind: postKind,
-          image: _postImage,
-          url: _postURL,
-          pdf: _postPDF,
-          timeEnd: _timeEnd,
-          survey: _postSurvey));
+        target: widget.postTarget,
+        targetID: widget.targetID,
+        visibility: _postVisibilityLevel,
+        content: _postTextController.text,
+        kind: postKind,
+        image: _postImage,
+        url: _postURL,
+        pdf: _postPDF,
+        timeEnd: _timeEnd,
+        survey: _postSurvey,
+        youtubeId: _youtubeID,
+      ));
       setState(() => _isCreating = false);
 
       showSimpleSnack(context, tr("The post has been successfully created!"));