lemmur-app-android/lib/widgets/comment_section.dart

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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
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import 'package:lemmy_api_client/v2.dart';
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import '../comment_tree.dart';
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import '../l10n/l10n.dart';
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import 'bottom_modal.dart';
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import 'bottom_safe.dart';
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import 'comment.dart';
/// Manages comments section, sorts them
class CommentSection extends HookWidget {
final List<CommentView> rawComments;
final List<CommentTree> comments;
final int postCreatorId;
final CommentSortType sortType;
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static const sortPairs = {
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CommentSortType.hot: [Icons.whatshot, L10nStrings.hot],
CommentSortType.new_: [Icons.new_releases, L10nStrings.new_],
CommentSortType.old: [Icons.calendar_today, L10nStrings.old],
CommentSortType.top: [Icons.trending_up, L10nStrings.top],
CommentSortType.chat: [Icons.chat, L10nStrings.chat],
};
CommentSection(
List<CommentView> rawComments, {
@required this.postCreatorId,
this.sortType = CommentSortType.hot,
}) : comments =
CommentTree.sortList(sortType, CommentTree.fromList(rawComments)),
rawComments = rawComments
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..sort((b, a) => a.comment.published.compareTo(b.comment.published)),
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assert(postCreatorId != null);
@override
Widget build(BuildContext context) {
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final sorting = useState(sortType);
void sortComments(CommentSortType sort) {
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if (sort != sorting.value && sort != CommentSortType.chat) {
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CommentTree.sortList(sort, comments);
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}
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sorting.value = sort;
}
return Column(children: [
Padding(
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 15),
child: Row(
children: [
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OutlinedButton(
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onPressed: () {
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showBottomModal(
title: 'sort by',
context: context,
builder: (context) => Column(
children: [
for (final e in sortPairs.entries)
ListTile(
leading: Icon(e.value[0] as IconData),
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title: Text((e.value[1] as String).tr(context)),
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trailing: sorting.value == e.key
? const Icon(Icons.check)
: null,
onTap: () {
Navigator.of(context).pop();
sortComments(e.key);
},
)
],
),
);
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},
child: Row(
children: [
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Text((sortPairs[sorting.value][1] as String).tr(context)),
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const Icon(Icons.arrow_drop_down),
],
),
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),
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const Spacer(),
],
),
),
// sorting menu goes here
if (comments.isEmpty)
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const Padding(
padding: EdgeInsets.symmetric(vertical: 50),
child: Text(
'no comments yet',
style: TextStyle(fontStyle: FontStyle.italic),
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),
)
else if (sorting.value == CommentSortType.chat)
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for (final com in rawComments) CommentWidget.fromCommentView(com)
else
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for (final com in comments) CommentWidget(com),
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const BottomSafe(kMinInteractiveDimension + kFloatingActionButtonMargin),
]);
}
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}