Can delete comments

lib/ui/tiles/comment_tile.dart

@@ -9,16 +9,20 @@ import 'package:flutter/material.dart';
 ///
 /// @author Pierre HUBERT
 
+enum _CommentAction { DELETE }
+
 class CommentTile extends StatelessWidget {
   final Comment comment;
   final User user;
   final void Function(Comment) onUpdateLike;
+  final void Function(Comment) onDeleteComment;
 
   const CommentTile({
     Key key,
     @required this.comment,
     @required this.user,
     @required this.onUpdateLike,
+    @required this.onDeleteComment,
   })  : assert(comment != null),
         assert(user != null),
         assert(onUpdateLike != null),
@@ -27,9 +31,7 @@ class CommentTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return ListTile(
-      leading: AccountImageWidget(
-        user: user,
-      ),
+      leading: _buildAccountImageWidget(),
       title: Text(
         user.displayName,
       ),
@@ -37,6 +39,22 @@ class CommentTile extends StatelessWidget {
     );
   }
 
+  Widget _buildAccountImageWidget() {
+    return PopupMenuButton<_CommentAction>(
+      child: AccountImageWidget(
+        user: user,
+      ),
+      onSelected: _selectedMenuOption,
+      itemBuilder: (c) => [
+            PopupMenuItem(
+              enabled: comment.isOwner,
+              child: Text("Delete"),
+              value: _CommentAction.DELETE,
+            )
+          ],
+    );
+  }
+
   Widget _buildCommentContent() {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.stretch,
@@ -106,4 +124,14 @@ class CommentTile extends StatelessWidget {
       ),
     );
   }
+
+  /// A menu option has been selected
+  void _selectedMenuOption(_CommentAction value) {
+    switch (value) {
+      // Delete comment
+      case _CommentAction.DELETE:
+        onDeleteComment(comment);
+        break;
+    }
+  }
 }

lib/ui/tiles/post_tile.dart

@@ -195,6 +195,7 @@ class _PostTileState extends State<PostTile> {
             comment: widget.post.comments[num],
             user: widget.usersInfo.getUser(widget.post.comments[num].userID),
             onUpdateLike: _updateCommentLike,
+            onDeleteComment: _deleteComment,
           ),
     );
 
@@ -290,7 +291,7 @@ class _PostTileState extends State<PostTile> {
   Future<void> _pickImageForComment() async {
     // Ask the user to confirm image removal if there is already one selected
     if (_hasImage) {
-      if (await askUserConfirmation(
+      if (await showConfirmDialog(
         context: context,
         title: tr("Remove selected image"),
         message: tr("Do you want to unselected currently selected image ?"),
@@ -364,4 +365,22 @@ class _PostTileState extends State<PostTile> {
       element.userLike ? element.likes++ : element.likes--;
     });
   }
+
+  /// Process the deletion of a user
+  Future<void> _deleteComment(Comment comment) async {
+    if (!await showConfirmDialog(
+        context: context,
+        message: tr("Do you really want to delete this comment ?"),
+        title: tr("Delete comment"))) return;
+
+    if (!await _commentsHelper.delete(comment.id)) {
+      showSimpleSnack(context, tr("Could not delete the comment!"));
+      return;
+    }
+
+    // Remove the comment from the list
+    setState(() {
+      widget.post.comments.remove(comment);
+    });
+  }
 }