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

380 lines
12 KiB
Dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:esys_flutter_share/esys_flutter_share.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:lemmy_api_client/lemmy_api_client.dart';
import 'package:timeago/timeago.dart' as timeago;
import '../pages/full_post.dart';
import '../url_launcher.dart';
import 'markdown_text.dart';
enum MediaType {
image,
gallery,
video,
other,
}
MediaType whatType(String url) {
if (url == null) return MediaType.other;
// TODO: make detection more nuanced
if (url.endsWith('.jpg') || url.endsWith('.png') || url.endsWith('.gif')) {
return MediaType.image;
}
return MediaType.other;
}
class Post extends StatelessWidget {
final PostView post;
final String instanceUrl;
final bool fullPost;
/// nullable
final String postUrlDomain;
Post(this.post, {this.fullPost = false})
: instanceUrl = post.communityActorId.split('/')[2],
postUrlDomain = post.url != null ? post.url.split('/')[2] : null;
// == ACTIONS ==
void _openLink() {
print('OPEN LINK');
urlLauncher(post.url);
}
void _goToUser() {
print('GO TO USER');
}
void _goToPost(BuildContext context) {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => FullPostPage.fromPostView(post)));
}
void _goToCommunity() {
print('GO TO COMMUNITY');
}
void _goToInstance() {
print('GO TO INSTANCE');
}
void _openFullImage() {
print('OPEN FULL IMAGE');
}
// POST ACTIONS
void _savePost() {
print('SAVE POST');
}
void _upvotePost() {
print('UPVOTE POST');
}
void _downvotePost() {
print('DOWNVOTE POST');
}
void _showMoreMenu() {
print('SHOW MORE MENU');
}
// == UI ==
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
// TODO: add NSFW, locked, removed, deleted, stickied
/// assemble info section
Widget info() => Column(children: [
Padding(
padding: const EdgeInsets.all(10),
child: Row(children: [
Column(
mainAxisSize: MainAxisSize.min,
children: [
if (post.communityIcon != null)
Padding(
padding: const EdgeInsets.only(right: 10),
child: InkWell(
onTap: _goToCommunity,
child: SizedBox(
height: 40,
width: 40,
child: CachedNetworkImage(
imageBuilder: (context, imageProvider) => Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(
fit: BoxFit.cover,
image: imageProvider,
),
),
),
imageUrl: post.communityIcon,
errorWidget: (context, url, error) =>
Text(error.toString()),
),
),
),
),
],
),
Column(
children: [
Row(children: [
RichText(
overflow: TextOverflow.ellipsis, // TODO: fix overflowing
text: TextSpan(
style: TextStyle(
fontSize: 15,
color: theme.textTheme.bodyText1.color),
children: [
TextSpan(
text: '!',
style: TextStyle(fontWeight: FontWeight.w300)),
TextSpan(
text: post.communityName,
style: TextStyle(fontWeight: FontWeight.w600),
recognizer: TapGestureRecognizer()
..onTap = _goToCommunity),
TextSpan(
text: '@',
style: TextStyle(fontWeight: FontWeight.w300)),
TextSpan(
text: instanceUrl,
style: TextStyle(fontWeight: FontWeight.w600),
recognizer: TapGestureRecognizer()
..onTap = _goToInstance),
],
),
)
]),
Row(children: [
RichText(
overflow: TextOverflow.ellipsis,
text: TextSpan(
style: TextStyle(
fontSize: 13,
color: theme.textTheme.bodyText1.color),
children: [
TextSpan(
text: 'by',
style: TextStyle(fontWeight: FontWeight.w300)),
TextSpan(
text:
''' ${post.creatorPreferredUsername ?? post.creatorName}''',
style: TextStyle(fontWeight: FontWeight.w600),
recognizer: TapGestureRecognizer()
..onTap = _goToUser,
),
TextSpan(
text:
''' · ${timeago.format(post.published, locale: 'en_short')}'''),
if (post.locked) TextSpan(text: ' · 🔒'),
if (post.stickied) TextSpan(text: ' · 📌'),
if (post.nsfw) TextSpan(text: ' · '),
if (post.nsfw)
TextSpan(
text: 'NSFW',
style: TextStyle(color: Colors.red)),
if (postUrlDomain != null)
TextSpan(text: ' · $postUrlDomain'),
if (post.removed) TextSpan(text: ' · REMOVED'),
if (post.deleted) TextSpan(text: ' · DELETED'),
],
))
]),
],
crossAxisAlignment: CrossAxisAlignment.start,
),
Spacer(),
if (!fullPost)
Column(
children: [
IconButton(
onPressed: _showMoreMenu,
icon: Icon(Icons.more_vert),
)
],
)
]),
),
]);
/// assemble title section
Widget title() => Padding(
padding: const EdgeInsets.only(left: 10, right: 10, bottom: 10),
child: Row(
children: [
Flexible(
child: Text(
'${post.name}',
textAlign: TextAlign.left,
softWrap: true,
style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
),
),
if (post.url != null &&
whatType(post.url) == MediaType.other &&
post.thumbnailUrl != null)
Spacer(),
if (post.url != null &&
whatType(post.url) == MediaType.other &&
post.thumbnailUrl != null)
InkWell(
onTap: _openLink,
child: Stack(children: [
ClipRRect(
borderRadius: BorderRadius.circular(20),
child: CachedNetworkImage(
imageUrl: post.thumbnailUrl,
width: 70,
height: 70,
fit: BoxFit.cover,
errorWidget: (context, url, error) =>
Text(error.toString()),
)),
Positioned(
top: 8,
right: 8,
child: Icon(
Icons.launch,
size: 20,
),
)
]),
)
],
),
);
/// assemble link preview
Widget linkPreview() {
assert(post.url != null);
var url = post.url.split('/')[2];
if (url.startsWith('www.')) {
url = url.substring(4);
}
return Padding(
padding: const EdgeInsets.all(10),
child: InkWell(
onTap: _openLink,
child: Container(
decoration: BoxDecoration(
border: Border.all(
width: 1,
color: Theme.of(context).iconTheme.color.withAlpha(170)),
borderRadius: BorderRadius.circular(5)),
child: Padding(
padding: const EdgeInsets.all(10),
child: Column(
children: [
Row(children: [
Spacer(),
Text('$url ',
style: theme.textTheme.caption
.apply(fontStyle: FontStyle.italic)),
Icon(Icons.launch, size: 12),
]),
Row(children: [
Flexible(
child: Text(post.embedTitle,
style: theme.textTheme.subtitle1
.apply(fontWeightDelta: 2)))
]),
Row(children: [Flexible(child: Text(post.embedDescription))]),
],
),
),
),
),
);
}
/// assemble image
Widget postImage() {
assert(post.url != null);
return InkWell(
onTap: _openFullImage,
child: CachedNetworkImage(
imageUrl: post.url,
progressIndicatorBuilder: (context, url, progress) =>
CircularProgressIndicator(value: progress.progress),
),
);
}
/// assemble actions section
Widget actions() => Padding(
padding: const EdgeInsets.fromLTRB(10, 5, 10, 5),
child: Row(
children: [
Icon(Icons.comment),
Expanded(
flex: 999,
child: Text(
''' ${NumberFormat.compact().format(post.numberOfComments)} comment${post.numberOfComments == 1 ? '' : 's'}''',
overflow: TextOverflow.fade,
softWrap: false,
),
),
Spacer(),
if (!fullPost)
IconButton(
icon: Icon(Icons.share),
onPressed: () => Share.text('Share post url', post.apId,
'text/plain')), // TODO: find a way to mark it as url
if (!fullPost)
IconButton(
icon: post.saved == true
? Icon(Icons.bookmark)
: Icon(Icons.bookmark_border),
onPressed: _savePost),
IconButton(
icon: Icon(Icons.arrow_upward), onPressed: _upvotePost),
Text(NumberFormat.compact().format(post.score)),
IconButton(
icon: Icon(Icons.arrow_downward), onPressed: _downvotePost),
],
),
);
return Container(
decoration: BoxDecoration(
boxShadow: [BoxShadow(blurRadius: 10, color: Colors.black54)],
color: theme.colorScheme.surface,
borderRadius: BorderRadius.all(Radius.circular(20)),
),
child: InkWell(
onTap: fullPost ? null : () => _goToPost(context),
child: Column(
children: [
info(),
title(),
if (whatType(post.url) != MediaType.other)
postImage()
else if (post.url != null)
linkPreview(),
if (post.body != null)
Padding(
padding: const EdgeInsets.all(10),
child: MarkdownText(post.body)),
actions(),
],
),
),
);
}
}