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

512 lines
18 KiB
Dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:esys_flutter_share/esys_flutter_share.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:lemmy_api_client/v2.dart';
import 'package:url_launcher/url_launcher.dart' as ul;
import '../comment_tree.dart';
import '../hooks/delayed_loading.dart';
import '../hooks/logged_in_action.dart';
import '../hooks/stores.dart';
import '../util/extensions/api.dart';
import '../util/extensions/datetime.dart';
import '../util/goto.dart';
import '../util/intl.dart';
import '../util/text_color.dart';
import 'bottom_modal.dart';
import 'info_table_popup.dart';
import 'markdown_text.dart';
import 'write_comment.dart';
/// A single comment that renders its replies
class CommentWidget extends HookWidget {
final int indent;
final int postCreatorId;
final CommentTree commentTree;
final bool detached;
final bool wasVoted;
static const colors = [
Colors.pink,
Colors.green,
Colors.amber,
Colors.cyan,
Colors.indigo,
];
CommentWidget(
this.commentTree, {
this.indent = 0,
@required this.postCreatorId,
this.detached = false,
}) : wasVoted =
(commentTree.comment.myVote ?? VoteType.none) != VoteType.none;
_showCommentInfo(BuildContext context) {
final com = commentTree.comment;
showInfoTablePopup(context, {
'id': com.comment.id,
'creatorId': com.comment.creatorId,
'postId': com.comment.postId,
'postName': com.post.name,
'parentId': com.comment.parentId,
'removed': com.comment.removed,
'read': com.comment.read,
'published': com.comment.published,
'updated': com.comment.updated,
'deleted': com.comment.deleted,
'apId': com.comment.apId,
'local': com.comment.local,
'communityId': com.community.id,
'communityActorId': com.community.actorId,
'communityLocal': com.community.local,
'communityName': com.community.name,
'communityIcon': com.community.icon,
'banned': com.creator.banned,
'bannedFromCommunity': com.creatorBannedFromCommunity,
'creatorActirId': com.creator.actorId,
'userId': com.creator.id,
'upvotes': com.counts.upvotes,
'downvotes': com.counts.downvotes,
'score': com.counts.score,
'% of upvotes':
'${100 * (com.counts.upvotes / (com.counts.upvotes + com.counts.downvotes))}%',
});
}
bool get isOP =>
commentTree.comment.comment.creatorId ==
commentTree.comment.post.creatorId;
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final accStore = useAccountsStore();
final isMine = commentTree.comment.comment.creatorId ==
accStore.defaultTokenFor(commentTree.comment.instanceHost)?.payload?.id;
final selectable = useState(false);
final showRaw = useState(false);
final collapsed = useState(false);
final myVote = useState(commentTree.comment.myVote ?? VoteType.none);
final isDeleted = useState(commentTree.comment.comment.deleted);
final delayedVoting = useDelayedLoading();
final delayedDeletion = useDelayedLoading();
final loggedInAction = useLoggedInAction(commentTree.comment.instanceHost);
final newReplies = useState(const <CommentTree>[]);
final comment = commentTree.comment;
handleDelete(Jwt token) async {
final api = LemmyApiV2(token.payload.iss);
delayedDeletion.start();
Navigator.of(context).pop();
try {
final res = await api.run(DeleteComment(
commentId: comment.comment.id,
deleted: !isDeleted.value,
auth: token.raw,
));
isDeleted.value = res.commentView.comment.deleted;
// ignore: avoid_catches_without_on_clauses
} catch (e) {
Scaffold.of(context).showSnackBar(
const SnackBar(content: Text('Failed to delete/restore comment')));
return;
}
delayedDeletion.cancel();
}
void _openMoreMenu(BuildContext context) {
pop() => Navigator.of(context).pop();
final com = commentTree.comment;
showBottomModal(
context: context,
builder: (context) => Column(
children: [
ListTile(
leading: const Icon(Icons.open_in_browser),
title: const Text('Open in browser'),
onTap: () async => await ul.canLaunch(com.comment.link)
? ul.launch(com.comment.link)
: Scaffold.of(context).showSnackBar(
const SnackBar(content: Text("can't open in browser"))),
),
ListTile(
leading: const Icon(Icons.share),
title: const Text('Share url'),
onTap: () => Share.text(
'Share comment url', com.comment.link, 'text/plain'),
),
ListTile(
leading: const Icon(Icons.share),
title: const Text('Share text'),
onTap: () => Share.text(
'Share comment text', com.comment.content, 'text/plain'),
),
ListTile(
leading:
Icon(selectable.value ? Icons.assignment : Icons.content_cut),
title:
Text('Make text ${selectable.value ? 'un' : ''}selectable'),
onTap: () {
selectable.value = !selectable.value;
pop();
},
),
ListTile(
leading: Icon(showRaw.value ? Icons.brush : Icons.build),
title: Text('Show ${showRaw.value ? 'fancy' : 'raw'} text'),
onTap: () {
showRaw.value = !showRaw.value;
pop();
},
),
if (isMine)
ListTile(
leading: Icon(isDeleted.value ? Icons.restore : Icons.delete),
title: Text(isDeleted.value ? 'Restore' : 'Delete'),
onTap: loggedInAction(handleDelete),
),
ListTile(
leading: const Icon(Icons.info_outline),
title: const Text('Nerd stuff'),
onTap: () => _showCommentInfo(context),
),
],
),
);
}
reply() async {
final newComment = await showCupertinoModalPopup<CommentView>(
context: context,
builder: (_) => WriteComment.toComment(comment),
);
if (newComment != null) {
newReplies.value = [...newReplies.value, CommentTree(newComment)];
}
}
vote(VoteType vote, Jwt token) async {
final api = LemmyApiV2(token.payload.iss);
delayedVoting.start();
try {
final res = await api.run(CreateCommentLike(
commentId: comment.comment.id, score: vote, auth: token.raw));
myVote.value = res.commentView.myVote ?? VoteType.none;
// ignore: avoid_catches_without_on_clauses
} catch (e) {
Scaffold.of(context)
.showSnackBar(const SnackBar(content: Text('voting failed :(')));
return;
}
delayedVoting.cancel();
}
final body = () {
if (isDeleted.value) {
return const Flexible(
child: Text(
'comment deleted by creator',
style: TextStyle(fontStyle: FontStyle.italic),
),
);
} else if (comment.comment.removed) {
return const Flexible(
child: Text(
'comment deleted by moderator',
style: TextStyle(fontStyle: FontStyle.italic),
),
);
} else if (collapsed.value) {
return Flexible(
child: Opacity(
opacity: 0.3,
child: Text(
commentTree.comment.comment.content,
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
),
);
} else {
// TODO: bug, the text is selectable even when disabled after following
// these steps:
// make selectable > show raw > show fancy > make unselectable
return Flexible(
child: showRaw.value
? selectable.value
? SelectableText(commentTree.comment.comment.content)
: Text(commentTree.comment.comment.content)
: MarkdownText(
commentTree.comment.comment.content,
instanceHost: commentTree.comment.instanceHost,
selectable: selectable.value,
));
}
}();
final actions = collapsed.value
? const SizedBox.shrink()
: Row(children: [
if (selectable.value &&
!isDeleted.value &&
!comment.comment.removed)
_CommentAction(
icon: Icons.content_copy,
tooltip: 'copy',
onPressed: () {
Clipboard.setData(ClipboardData(
text: commentTree.comment.comment.content))
.then((_) => Scaffold.of(context).showSnackBar(
const SnackBar(
content: Text('comment copied to clipboard'))));
}),
const Spacer(),
if (detached)
_CommentAction(
icon: Icons.link,
onPressed: () =>
goToPost(context, comment.instanceHost, comment.post.id),
tooltip: 'go to post',
),
_CommentAction(
icon: Icons.more_horiz,
onPressed: () => _openMoreMenu(context),
loading: delayedDeletion.loading,
tooltip: 'more',
),
_SaveComment(commentTree.comment),
if (!isDeleted.value && !comment.comment.removed)
_CommentAction(
icon: Icons.reply,
onPressed: loggedInAction((_) => reply()),
tooltip: 'reply',
),
_CommentAction(
icon: Icons.arrow_upward,
iconColor: myVote.value == VoteType.up ? theme.accentColor : null,
onPressed: loggedInAction((token) => vote(
myVote.value == VoteType.up ? VoteType.none : VoteType.up,
token,
)),
tooltip: 'upvote',
),
_CommentAction(
icon: Icons.arrow_downward,
iconColor: myVote.value == VoteType.down ? Colors.red : null,
onPressed: loggedInAction(
(token) => vote(
myVote.value == VoteType.down ? VoteType.none : VoteType.down,
token,
),
),
tooltip: 'downvote',
),
]);
return GestureDetector(
onLongPress: () => collapsed.value = !collapsed.value,
child: Column(
children: [
Container(
padding: const EdgeInsets.all(10),
margin: EdgeInsets.only(left: indent > 1 ? (indent - 1) * 5.0 : 0),
decoration: BoxDecoration(
border: Border(
left: indent > 0
? BorderSide(
color: colors[indent % colors.length], width: 5)
: BorderSide.none,
top: const BorderSide(width: 0.2))),
child: Column(
children: [
Row(children: [
if (comment.creator.avatar != null)
Padding(
padding: const EdgeInsets.only(right: 5),
child: InkWell(
onTap: () => goToUser.byId(
context, comment.instanceHost, comment.creator.id),
child: CachedNetworkImage(
imageUrl: comment.creator.avatar,
height: 20,
width: 20,
imageBuilder: (context, imageProvider) => Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(
fit: BoxFit.cover,
image: imageProvider,
),
),
),
errorWidget: (_, __, ___) => const SizedBox.shrink(),
),
),
),
InkWell(
onTap: () => goToUser.byId(
context, comment.instanceHost, comment.creator.id),
child: Text(comment.creator.originDisplayName,
style: TextStyle(
color: Theme.of(context).accentColor,
)),
),
if (isOP) _CommentTag('OP', Theme.of(context).accentColor),
if (comment.creator.banned)
const _CommentTag('BANNED', Colors.red),
if (comment.creatorBannedFromCommunity)
const _CommentTag('BANNED FROM COMMUNITY', Colors.red),
const Spacer(),
if (collapsed.value && commentTree.children.isNotEmpty) ...[
_CommentTag('+${commentTree.children.length}',
Theme.of(context).accentColor),
const SizedBox(width: 7),
],
InkWell(
onTap: () => _showCommentInfo(context),
child: Row(
children: [
if (delayedVoting.loading)
SizedBox.fromSize(
size: const Size.square(16),
child: const CircularProgressIndicator())
else
Text(compactNumber(comment.counts.score +
(wasVoted ? 0 : myVote.value.value))),
const Text(' · '),
Text(comment.comment.published.fancy),
],
),
)
]),
const SizedBox(height: 10),
Row(children: [body]),
const SizedBox(height: 5),
actions,
],
),
),
if (!collapsed.value)
for (final c in newReplies.value.followedBy(commentTree.children))
CommentWidget(
c,
indent: indent + 1,
postCreatorId: postCreatorId,
),
],
),
);
}
}
class _SaveComment extends HookWidget {
final CommentView comment;
const _SaveComment(this.comment);
@override
Widget build(BuildContext context) {
final loggedInAction = useLoggedInAction(comment.instanceHost);
final isSaved = useState(comment.saved ?? false);
final delayed = useDelayedLoading();
handleSave(Jwt token) async {
final api = LemmyApiV2(comment.instanceHost);
delayed.start();
try {
final res = await api.run(SaveComment(
commentId: comment.comment.id,
save: !isSaved.value,
auth: token.raw,
));
isSaved.value = res.commentView.saved;
// ignore: avoid_catches_without_on_clauses
} catch (e) {
Scaffold.of(context)
.showSnackBar(const SnackBar(content: Text('saving failed :(')));
}
delayed.cancel();
}
return _CommentAction(
loading: delayed.loading,
icon: isSaved.value ? Icons.bookmark : Icons.bookmark_border,
onPressed: loggedInAction(delayed.pending ? (_) {} : handleSave),
tooltip: '${isSaved.value ? 'unsave' : 'save'} comment',
);
}
}
class _CommentTag extends StatelessWidget {
final String text;
final Color bgColor;
const _CommentTag(this.text, this.bgColor);
@override
Widget build(BuildContext context) => Padding(
padding: const EdgeInsets.only(left: 5),
child: Container(
decoration: BoxDecoration(
borderRadius: const BorderRadius.all(Radius.circular(5)),
color: bgColor,
),
padding: const EdgeInsets.symmetric(horizontal: 3, vertical: 2),
child: Text(text,
style: TextStyle(
color: textColorBasedOnBackground(bgColor),
fontSize: Theme.of(context).textTheme.bodyText1.fontSize - 5,
fontWeight: FontWeight.w800,
)),
),
);
}
class _CommentAction extends StatelessWidget {
final IconData icon;
final VoidCallback onPressed;
final String tooltip;
final bool loading;
final Color iconColor;
const _CommentAction({
Key key,
this.loading = false,
this.iconColor,
@required this.icon,
@required this.onPressed,
@required this.tooltip,
}) : super(key: key);
@override
Widget build(BuildContext context) => IconButton(
constraints: BoxConstraints.tight(const Size(32, 26)),
icon: loading
? SizedBox.fromSize(
size: const Size.square(22),
child: const CircularProgressIndicator())
: Icon(
icon,
color: iconColor ??
Theme.of(context).iconTheme.color.withAlpha(190),
),
splashRadius: 25,
onPressed: onPressed,
iconSize: 22,
tooltip: tooltip,
padding: const EdgeInsets.all(0),
);
}