weiman_app/lib/widgets/book.dart

import 'package:extended_image/extended_image.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:weiman/classes/chapter.dart';
import 'package:weiman/classes/networkImageSSL.dart';
import 'package:weiman/db/book.dart';
import 'package:weiman/utils.dart';

class WidgetBook extends StatelessWidget {
  final Book book;
  final String subtitle;
  final Function(Book) onTap;

  const WidgetBook(
    this.book, {
    Key key,
    @required this.subtitle,
    this.onTap,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final isLiked = book.favorite;
    return ListTile(
      title: Text(
        book.name,
        maxLines: 1,
        overflow: TextOverflow.ellipsis,
      ),
      subtitle: Text(
        subtitle,
        maxLines: 1,
        overflow: TextOverflow.ellipsis,
      ),
      dense: true,
      leading: Hero(
        tag: 'bookAvatar${book.aid}',
        child: ExtendedImage(image: NetworkImageSSL(book.http, book.avatar)),
      ),
      trailing: Icon(
        isLiked ? Icons.favorite : Icons.favorite_border,
        color: isLiked ? Colors.red : Colors.grey,
        size: 12,
      ),
      onTap: () {
        if (onTap != null) return onTap(book);
        openBook(context, book, 'bookAvatar${book.aid}');
      },
    );
  }
}

final dateFormat = DateFormat('yyyy-MM-dd');

class WidgetChapter extends StatelessWidget {
  static final double height = kToolbarHeight;
  final Chapter chapter;
  final Function(Chapter) onTap;
  final bool read;

  WidgetChapter({
    Key key,
    this.chapter,
    this.onTap,
    this.read = false,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final children = <InlineSpan>[TextSpan(text: chapter.cname)];
    if (read) {
      children.insert(
          0,
          TextSpan(
            text: '[已看]',
            style: TextStyle(color: Colors.orange),
          ));
    }
    return ListTile(
      onTap: () {
        if (onTap != null) onTap(chapter);
      },
      title: RichText(
        text: TextSpan(
          children: children,
          style: Theme.of(context).textTheme.bodyText2,
        ),
        softWrap: true,
        maxLines: 2,
      ),
      subtitle: chapter.time == null
          ? null
          : Text('更新时间 ${dateFormat.format(chapter.time)}'),
    );
  }
}

class WidgetHistory extends StatelessWidget {
  final Book book;
  final Function(Book book) onTap;

  WidgetHistory(this.book, this.onTap);

  @override
  Widget build(BuildContext context) {
    return SliverToBoxAdapter(
      child: ListTile(
        onTap: () {
          if (onTap != null) onTap(book);
        },
        title: Text(book.name),
        leading: Image(
          image: ExtendedNetworkImageProvider(book.avatar, cache: true),
          fit: BoxFit.fitHeight,
        ),
        subtitle: Text(book.history.cname),
      ),
    );
  }
}

class WidgetBookCheckNew extends StatefulWidget {
  final Book book;

  const WidgetBookCheckNew({Key key, this.book}) : super(key: key);

  @override
  _WidgetBookCheckNew createState() => _WidgetBookCheckNew();
}

class _WidgetBookCheckNew extends State<WidgetBookCheckNew> {
  bool loading = true, hasError = false;
  int news;

  @override
  void initState() {
    super.initState();
    load();
  }

  void load() async {
//    loading = true;
//    try {
//      final book = await Http18Comic.instance
//          .getBook(widget.book.aid)
//          .timeout(Duration(seconds: 2));
//      news = book.chapterCount - widget.book.chapterCount;
//      hasError = false;
//    } catch (e) {
//      hasError = true;
//    }
//    loading = false;
//    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    final children = <Widget>[];
    if (widget.book.history != null)
      children.add(Text(
        widget.book.history.cname,
        maxLines: 1,
        overflow: TextOverflow.ellipsis,
      ));

    if (loading)
      children.add(Text('检查更新中'));
    else if (hasError)
      children.add(Text('网络错误'));
    else if (news > 0)
      children.add(Text('有 $news 章更新'));
    else
      children.add(Text('没有更新'));
    return ListTile(
      onTap: () =>
          openBook(context, widget.book, 'checkBook${widget.book.aid}'),
      leading: Hero(
        tag: 'checkBook${widget.book.aid}',
        child: Image(
            image:
                ExtendedNetworkImageProvider(widget.book.avatar, cache: true)),
      ),
      dense: true,
      isThreeLine: true,
      title: Text(widget.book.name),
      subtitle: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: children,
      ),
    );
  }
}