todo-app/lib/ui/markdown_view.dart
Krzysztof kuhy Rudnicki f463e50d67 Switch to very_good_analysis, matching the rest of the Flutter ecosystem
Standardizes on the same stricter lint set + shared analysis_options.yaml
used by diet-guard/app and the new habit_stack app. Fixes all 127 issues
surfaced: dart fix --apply for imports/cascades/sorting, unawaited() on
fire-and-forget Futures, bare catch(e) narrowed to on Exception catch(e)
(matching diet_guard's existing pattern), one documented ignore for a
deliberate TypeError catch around untrusted peer JSON, and missing
public-member doc comments throughout. No behavior change: 174/174 tests
pass, 100% line coverage maintained.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-20 11:05:13 +02:00

108 lines
3.2 KiB
Dart

import 'package:flutter/material.dart';
/// A lightweight, read-only renderer for the note format.
///
/// The app's notes use a small, known Markdown subset — an `#` title, `##`
/// section headings, italic `_guidance_` lines, `-` bullet lists and plain
/// paragraphs — so a tailored line-based renderer covers everything we emit
/// without pulling in a full Markdown engine. It keeps the quick-capture app
/// lean and is trivial to test.
///
/// The whole rendered note is wrapped in a [SelectionArea] so it can be copied
/// out in one go (the note is meant to be pasted into an LLM).
class MarkdownView extends StatelessWidget {
/// Creates a [MarkdownView] rendering [text].
const MarkdownView({required this.text, super.key});
/// The raw markdown source to render.
final String text;
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final widgets = <Widget>[];
for (final line in text.split('\n')) {
final trimmed = line.trim();
if (trimmed.isEmpty) {
widgets.add(const SizedBox(height: 10));
continue;
}
if (trimmed.startsWith('## ')) {
widgets.add(
Padding(
padding: const EdgeInsets.only(top: 8, bottom: 2),
child: Text(
trimmed.substring(3).trim(),
style: theme.textTheme.titleMedium?.copyWith(
fontWeight: FontWeight.bold,
),
),
),
);
continue;
}
if (trimmed.startsWith('# ')) {
widgets.add(
Padding(
padding: const EdgeInsets.only(bottom: 4),
child: Text(
trimmed.substring(2).trim(),
style: theme.textTheme.headlineSmall?.copyWith(
fontWeight: FontWeight.bold,
),
),
),
);
continue;
}
// A whole-line italic marker — used for the section guidance lines.
if (trimmed.length >= 2 &&
trimmed.startsWith('_') &&
trimmed.endsWith('_')) {
widgets.add(
Text(
trimmed.substring(1, trimmed.length - 1),
style: theme.textTheme.bodyMedium?.copyWith(
fontStyle: FontStyle.italic,
color: theme.colorScheme.onSurfaceVariant,
),
),
);
continue;
}
if (trimmed.startsWith('- ') || trimmed.startsWith('* ')) {
widgets.add(
Padding(
padding: const EdgeInsets.only(left: 4, top: 2),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('• ', style: theme.textTheme.bodyLarge),
Expanded(
child: Text(
trimmed.substring(2),
style: theme.textTheme.bodyLarge,
),
),
],
),
),
);
continue;
}
widgets.add(Text(line, style: theme.textTheme.bodyLarge));
}
return SelectionArea(
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: widgets,
),
),
);
}
}