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

87 lines
2.7 KiB
Dart

import 'package:flutter/material.dart';
import '../../util/observer_consumers.dart';
import '../markdown_text.dart';
import 'post_status.dart';
import 'post_store.dart';
class PostBody extends StatelessWidget {
const PostBody();
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final fullPost = context.read<IsFullPost>();
return ObserverBuilder<PostStore>(builder: (context, store) {
final body = store.postView.post.body;
if (body == null) return const SizedBox();
if (fullPost) {
return Padding(
padding: const EdgeInsets.all(10),
child: MarkdownText(
body,
instanceHost: store.postView.instanceHost,
selectable: true,
),
);
} else {
return LayoutBuilder(
builder: (context, constraints) {
final tp = TextPainter(
text: TextSpan(text: body),
maxLines: 8,
textDirection: Directionality.of(context),
)..layout(maxWidth: constraints.maxWidth - 20);
if (tp.didExceedMaxLines) {
return ConstrainedBox(
constraints: BoxConstraints(maxHeight: tp.height),
child: Stack(
children: [
Positioned.fill(
bottom: null,
child: Padding(
padding: const EdgeInsets.all(10),
child: MarkdownText(
body,
instanceHost: store.postView.instanceHost,
),
),
),
Positioned.fill(
top: null,
child: Container(
height: tp.preferredLineHeight * 2.5,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [
theme.cardColor.withAlpha(0),
theme.cardColor,
],
),
),
),
),
],
),
);
} else {
return Padding(
padding: const EdgeInsets.all(10),
child: MarkdownText(
body,
instanceHost: store.postView.instanceHost,
),
);
}
},
);
}
});
}
}