✨ News Reader Basis
This commit is contained in:
113
lib/screens/news/news_detail.dart
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113
lib/screens/news/news_detail.dart
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@ -0,0 +1,113 @@
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:surface/providers/sn_network.dart';
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import 'package:surface/types/news.dart';
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import 'package:surface/widgets/dialog.dart';
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import 'package:surface/widgets/navigation/app_scaffold.dart';
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import 'package:flutter_inappwebview/flutter_inappwebview.dart';
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class NewsDetailScreen extends StatefulWidget {
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final String hash;
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const NewsDetailScreen({super.key, required this.hash});
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@override
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State<NewsDetailScreen> createState() => _NewsDetailScreenState();
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}
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class _NewsDetailScreenState extends State<NewsDetailScreen> {
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SnNewsArticle? _article;
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Future<void> _fetchArticle() async {
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try {
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final sn = context.read<SnNetworkProvider>();
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final resp = await sn.client.get('/cgi/re/news/${widget.hash}');
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_article = SnNewsArticle.fromJson(resp.data);
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} catch (err) {
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if (!mounted) return;
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context.showErrorDialog(err).then((_) {
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if (!mounted) return;
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Navigator.pop(context);
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});
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} finally {
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setState(() {});
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}
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}
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@override
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void initState() {
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super.initState();
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_fetchArticle();
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}
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bool _isReadingFromReader = true;
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String get _htmlContent => """
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {
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background-color: #000000;
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color: #fff;
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font-family: Arial, sans-serif;
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padding: 20px;
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}
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</style>
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</head>
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<body>
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${_article?.content ?? ''}
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</body>
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</html>
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""";
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InAppWebViewController? _webViewController;
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@override
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Widget build(BuildContext context) {
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return AppScaffold(
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appBar: AppBar(
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leading: const PageBackButton(),
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title: Text(_article?.title ?? 'loading'.tr()),
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),
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body: Column(
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children: [
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MaterialBanner(
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dividerColor: Colors.transparent,
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leading: const Icon(Icons.info),
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content: Text(_isReadingFromReader ? 'newsReadingFromReader'.tr() : 'newsReadingFromOriginal'.tr()),
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actions: [
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TextButton(
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child: Text('newsReadingProviderSwap').tr(),
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onPressed: () {
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setState(() => _isReadingFromReader = !_isReadingFromReader);
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if (!_isReadingFromReader) {
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_webViewController?.goTo(historyItem: WebHistoryItem(url: WebUri(_article!.url)));
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} else {
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_webViewController?.goBack();
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}
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},
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),
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],
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),
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Expanded(
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child: InAppWebView(
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key: Key('news-detail-webview-${widget.hash}-$_isReadingFromReader'),
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onWebViewCreated: (controller) {
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_webViewController = controller;
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},
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initialUrlRequest: URLRequest(url: WebUri(_article!.url)),
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onLoadStop: (controller, url) {
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print("Loaded: $url");
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},
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onLoadError: (controller, url, code, message) {
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print("Error loading $url: $message ($code)");
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},
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),
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),
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],
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),
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);
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}
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}
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189
lib/screens/news/news_list.dart
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189
lib/screens/news/news_list.dart
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@ -0,0 +1,189 @@
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:gap/gap.dart';
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import 'package:go_router/go_router.dart';
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import 'package:provider/provider.dart';
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import 'package:styled_widget/styled_widget.dart';
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import 'package:surface/providers/sn_network.dart';
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import 'package:surface/types/news.dart';
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import 'package:surface/widgets/app_bar_leading.dart';
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import 'package:surface/widgets/dialog.dart';
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import 'package:surface/widgets/navigation/app_scaffold.dart';
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import 'package:surface/widgets/universal_image.dart';
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import 'package:very_good_infinite_list/very_good_infinite_list.dart';
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class NewsScreen extends StatefulWidget {
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const NewsScreen({super.key});
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@override
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State<NewsScreen> createState() => _NewsScreenState();
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}
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class _NewsScreenState extends State<NewsScreen> {
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List<SnNewsSource>? _sources;
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@override
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initState() {
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super.initState();
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_fetchSources();
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}
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Future<void> _fetchSources() async {
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try {
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final sn = context.read<SnNetworkProvider>();
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final resp = await sn.client.get('/cgi/re/well-known/sources');
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_sources = List<SnNewsSource>.from(
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resp.data?.map((e) => SnNewsSource.fromJson(e)) ?? [],
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);
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} catch (err) {
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if (!mounted) return;
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context.showErrorDialog(err);
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} finally {
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setState(() {});
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}
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}
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@override
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Widget build(BuildContext context) {
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if (_sources == null) {
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return AppScaffold(
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appBar: AppBar(
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leading: AutoAppBarLeading(),
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title: Text('screenNews').tr(),
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),
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body: Center(
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child: CircularProgressIndicator(),
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),
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);
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}
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return DefaultTabController(
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length: _sources!.length + 1,
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child: AppScaffold(
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body: NestedScrollView(
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headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
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return <Widget>[
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SliverOverlapAbsorber(
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handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
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sliver: SliverAppBar(
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leading: AutoAppBarLeading(),
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title: Text('screenNews').tr(),
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bottom: TabBar(
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isScrollable: true,
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tabs: [
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Tab(child: Text('newsAllSources'.tr())),
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for (final source in _sources!) Tab(child: Text(source.label)),
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],
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),
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),
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),
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];
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},
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body: TabBarView(
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children: [
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_NewsArticleListWidget(),
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for (final source in _sources!) _NewsArticleListWidget(source: source.id),
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],
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),
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),
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),
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);
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}
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}
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class _NewsArticleListWidget extends StatefulWidget {
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final String? source;
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const _NewsArticleListWidget({this.source});
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@override
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State<_NewsArticleListWidget> createState() => _NewsArticleListWidgetState();
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}
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class _NewsArticleListWidgetState extends State<_NewsArticleListWidget> {
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bool _isBusy = false;
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int? _totalCount;
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final List<SnNewsArticle> _articles = List.empty(growable: true);
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Future<void> _fetchArticles() async {
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setState(() => _isBusy = true);
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try {
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final sn = context.read<SnNetworkProvider>();
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final resp = await sn.client.get('/cgi/re/news', queryParameters: {
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'take': 10,
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'offset': _articles.length,
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if (widget.source != null) 'source': widget.source,
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});
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_totalCount = resp.data['count'];
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_articles.addAll(List<SnNewsArticle>.from(
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resp.data['data']?.map((e) => SnNewsArticle.fromJson(e)) ?? [],
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));
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} catch (err) {
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if (!mounted) return;
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context.showErrorDialog(err);
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} finally {
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setState(() => _isBusy = false);
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}
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}
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@override
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void initState() {
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super.initState();
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_fetchArticles();
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}
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@override
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Widget build(BuildContext context) {
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return MediaQuery.removePadding(
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context: context,
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removeTop: true,
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child: RefreshIndicator(
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onRefresh: _fetchArticles,
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child: InfiniteList(
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isLoading: _isBusy,
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itemCount: _articles.length,
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hasReachedMax: _totalCount != null && _articles.length >= _totalCount!,
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onFetchData: () {
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_fetchArticles();
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},
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itemBuilder: (context, index) {
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final article = _articles[index];
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final baseUri = Uri.parse(article.url);
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final baseUrl = '${baseUri.scheme}://${baseUri.host}';
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return Card(
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child: InkWell(
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radius: 8,
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onTap: () {
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GoRouter.of(context).pushNamed(
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'newsDetail',
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pathParameters: {'hash': article.hash},
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);
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},
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child: Column(
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children: [
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if (article.thumbnail.isNotEmpty && !article.thumbnail.endsWith('.svg'))
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ClipRRect(
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borderRadius: BorderRadius.all(Radius.circular(8)),
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child: AspectRatio(
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aspectRatio: 16 / 9,
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child: AutoResizeUniversalImage('$baseUrl/${article.thumbnail}'),
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),
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),
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Text(article.title).textStyle(Theme.of(context).textTheme.titleLarge!),
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Text(article.description).textStyle(Theme.of(context).textTheme.bodyMedium!),
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const Gap(8),
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Text(article.source).textStyle(Theme.of(context).textTheme.bodySmall!),
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],
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).padding(all: 8),
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),
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);
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},
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),
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),
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);
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}
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}
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