Can create weblink posts

lib/helpers/posts_helper.dart

@@ -146,6 +146,10 @@ class PostsHelper {
         request.addFile("image", post.image);
         break;
 
+      case PostKind.WEB_LINK:
+        request.addString("url", post.url);
+        break;
+
       case PostKind.PDF:
         request.addBytesFile(
             "pdf",

lib/models/new_post.dart

@@ -26,6 +26,7 @@ class NewPost {
   final PostVisibilityLevel visibility;
   final String content;
   final File image;
+  final String url;
   final List<int> pdf;
   final PostKind kind;
   final DateTime timeEnd;
@@ -38,6 +39,7 @@ class NewPost {
     @required this.content,
     @required this.kind,
     @required this.image,
+    @required this.url,
     @required this.pdf,
     @required this.timeEnd,
     @required this.survey,
@@ -47,6 +49,7 @@ class NewPost {
         assert(content != null),
         assert(kind != PostKind.TEXT || content.length > 3),
         assert(kind != PostKind.IMAGE || image != null),
+        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);

lib/ui/dialogs/url_dialog.dart

@@ -0,0 +1,86 @@
+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 {
+  final String title;
+  final String initialURL;
+
+  const _InputURLDialog({
+    Key key,
+    @required this.title,
+    @required this.initialURL,
+  })  : assert(title != null),
+        super(key: key);
+
+  @override
+  __InputURLDialogState createState() => __InputURLDialogState();
+}
+
+class __InputURLDialogState extends State<_InputURLDialog> {
+  TextEditingController _controller;
+
+  bool get _isValid =>
+      _controller.text.isNotEmpty && validateUrl(_controller.text);
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = new TextEditingController(text: widget.initialURL);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: Text(widget.title),
+      content: TextField(
+        controller: _controller,
+        onChanged: (s) => setState(() {}),
+        decoration: InputDecoration(
+          icon: Icon(Icons.link),
+          alignLabelWithHint: true,
+          labelText: "http://...",
+          errorText: _controller.text.isNotEmpty && !_isValid
+              ? tr("Invalid URL!")
+              : null,
+        ),
+      ),
+      actions: <Widget>[
+        // Cancel
+        MaterialButton(
+          child: Text(tr("Cancel").toUpperCase()),
+          onPressed: () => Navigator.of(context).pop(),
+          textColor: Colors.red,
+        ),
+
+        // Confirm
+        MaterialButton(
+          child: Text(tr("Confirm").toUpperCase()),
+          onPressed: _isValid
+              ? () => Navigator.of(context).pop(_controller.text)
+              : null,
+        ),
+      ],
+    );
+  }
+}

lib/ui/widgets/post_create_form_widget.dart

@@ -6,6 +6,7 @@ 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/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';
@@ -49,12 +50,15 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
   final TextEditingController _postTextController = TextEditingController();
   PostVisibilityLevel _postVisibilityLevel;
   File _postImage;
+  String _postURL;
   List<int> _postPDF;
   DateTime _timeEnd;
   NewSurvey _postSurvey;
 
   bool get hasImage => _postImage != null;
 
+  bool get hasURL => _postURL != null;
+
   bool get hasPDF => _postPDF != null;
 
   bool get hasTimeEnd => _timeEnd != null;
@@ -70,6 +74,8 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
       return PostKind.IMAGE;
     else if (hasPDF)
       return PostKind.PDF;
+    else if (hasURL)
+      return PostKind.WEB_LINK;
     else if (hasTimeEnd)
       return PostKind.COUNTDOWN;
     else if (hasSurvey)
@@ -125,6 +131,13 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
                         onTap: _pickImageForPost,
                       ),
 
+                      // Web link
+                      _PostOptionWidget(
+                        icon: Icons.link,
+                        selected: postKind == PostKind.WEB_LINK,
+                        onTap: _pickURLForPost,
+                      ),
+
                       // Include PDF button
                       _PostOptionWidget(
                         icon: Icons.picture_as_pdf,
@@ -150,6 +163,8 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
                 ),
               ),
 
+              Container(width: 20),
+
               // Post visibility level
               _PostOptionWidget(
                 icon: PostVisibilityLevelsMapIcons[_postVisibilityLevel],
@@ -203,6 +218,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
   void _resetPostSelection() {
     setState(() {
       _postImage = null;
+      _postURL = null;
       _postPDF = null;
       _timeEnd = null;
       _postSurvey = null;
@@ -222,6 +238,23 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
     });
   }
 
+  /// Choose a new URL for the post
+  Future<void> _pickURLForPost() async {
+    final url = await showInputURLDialog(
+      context: context,
+      title: tr("Specify URL"),
+      initialURL: _postURL,
+    );
+
+    if (url == null) return;
+
+    _resetPostSelection();
+
+    setState(() {
+      _postURL = url;
+    });
+  }
+
   /// Pick a PDF for the new post
   Future<void> _pickPDFForPost() async {
     try {
@@ -304,6 +337,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
           content: _postTextController.text,
           kind: postKind,
           image: _postImage,
+          url: _postURL,
           pdf: _postPDF,
           timeEnd: _timeEnd,
           survey: _postSurvey));