126 lines
3.8 KiB
Dart
126 lines
3.8 KiB
Dart
import 'dart:convert';
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import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:flutter_html/flutter_html.dart';
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import '../theme/app_theme.dart';
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import '../utils/safe_cast.dart';
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/// Detail screen for a tapped carousel slide.
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/// Displays the banner image (base64 or network URL), title, and rich HTML detail content.
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class CarouselDetailScreen extends StatelessWidget {
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final dynamic slide;
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const CarouselDetailScreen({super.key, required this.slide});
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@override
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Widget build(BuildContext context) {
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final title = safeString(slide['name']) ?? 'Slide Details';
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final bodyHtml = safeString(slide['body']) ?? '';
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final base64Img = safeString(slide['image']);
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final externalUrl = safeString(slide['image_url']);
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return Scaffold(
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appBar: AppBar(title: Text(title)),
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body: SingleChildScrollView(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Slide image (full width)
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_buildSlideImage(base64Img, externalUrl),
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Padding(
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padding: const EdgeInsets.fromLTRB(20, 20, 20, 8),
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child: Text(title, style: Theme.of(context).textTheme.titleLarge),
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),
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if (bodyHtml.isNotEmpty)
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 12),
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child: Html(
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data: bodyHtml,
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style: {
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'body': Style(
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color: AppTheme.onSurface,
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fontFamily: 'Manrope',
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fontSize: FontSize(15),
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lineHeight: const LineHeight(1.6),
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),
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'p': Style(margin: Margins.only(bottom: 12)),
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'h1': Style(
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color: AppTheme.onSurface,
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fontSize: FontSize(22),
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fontWeight: FontWeight.bold,
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),
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'h2': Style(
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color: AppTheme.onSurface,
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fontSize: FontSize(18),
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fontWeight: FontWeight.bold,
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),
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'a': Style(color: AppTheme.secondary),
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},
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),
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)
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else
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Padding(
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padding: const EdgeInsets.all(20),
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child: Text(
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'No content available.',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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),
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const SizedBox(height: 32),
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],
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),
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),
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);
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}
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Widget _buildSlideImage(String? base64Img, String? externalUrl) {
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if (base64Img != null && base64Img.isNotEmpty) {
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try {
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final Uint8List bytes = base64Decode(base64Img);
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return Image.memory(
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bytes,
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width: double.infinity,
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height: 220,
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fit: BoxFit.cover,
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);
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} catch (_) {
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return _placeholder();
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}
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} else if (externalUrl != null && externalUrl.isNotEmpty) {
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return Image.network(
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externalUrl,
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width: double.infinity,
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height: 220,
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fit: BoxFit.cover,
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errorBuilder: (_, _, _) => _placeholder(),
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loadingBuilder: (ctx, child, progress) {
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if (progress == null) return child;
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return Container(
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height: 220,
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color: AppTheme.surfaceContainer,
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child: const Center(child: CircularProgressIndicator()),
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);
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},
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);
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} else {
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return _placeholder();
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}
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}
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Widget _placeholder() {
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return Container(
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height: 220,
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color: AppTheme.surfaceContainer,
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child: const Center(
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child: Icon(
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Icons.image_rounded,
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size: 56,
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color: AppTheme.outlineVariant,
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),
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),
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);
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}
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}
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