generated from dellevin/template
115 lines
3.7 KiB
Dart
115 lines
3.7 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'epub_player.dart';
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/// 进度控制面板 — 滑块跳转 + 章节信息
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class ProgressPanel extends StatefulWidget {
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final GlobalKey<EpubPlayerState> epubPlayerKey;
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const ProgressPanel({super.key, required this.epubPlayerKey});
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@override
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State<ProgressPanel> createState() => _ProgressPanelState();
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}
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class _ProgressPanelState extends State<ProgressPanel> {
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double _sliderValue = 0.0;
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Timer? _debounceTimer;
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EpubPlayerState? get _player => widget.epubPlayerKey.currentState;
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@override
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void initState() {
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super.initState();
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_sliderValue = _player?.percentage ?? 0.0;
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}
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@override
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void dispose() {
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_debounceTimer?.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final colors = Theme.of(context).colorScheme;
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final player = _player;
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final chapterTitle = player?.chapterTitle ?? '';
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final currentPage = player?.chapterCurrentPage ?? 0;
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final totalPages = player?.chapterTotalPages ?? 0;
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final percent = player?.percentage ?? 0.0;
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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// 章节标题
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if (chapterTitle.isNotEmpty)
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Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: Text(
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chapterTitle,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onSurface),
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),
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),
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// 滑块行
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Row(
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children: [
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IconButton(
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icon: const Icon(Icons.skip_previous, size: 20),
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(minWidth: 36, minHeight: 36),
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onPressed: () => _player?.prevChapter(),
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),
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Expanded(
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child: Slider(
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value: _sliderValue.clamp(0.0, 1.0),
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onChanged: (value) {
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setState(() => _sliderValue = value);
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_debounceTimer?.cancel();
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_debounceTimer = Timer(const Duration(milliseconds: 100), () {
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_player?.goToPercentage(value);
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});
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},
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),
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),
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IconButton(
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icon: const Icon(Icons.skip_next, size: 20),
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(minWidth: 36, minHeight: 36),
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onPressed: () => _player?.nextChapter(),
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),
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],
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),
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// 页码和百分比
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Padding(
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padding: const EdgeInsets.only(bottom: 4),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: [
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_infoItem('$currentPage', '当前页', colors),
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_infoItem('$totalPages', '总页数', colors),
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_infoItem('${(percent * 100).toStringAsFixed(1)}%', '进度', colors),
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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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Widget _infoItem(String value, String label, ColorScheme colors) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(value, style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: colors.onSurface)),
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const SizedBox(height: 2),
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Text(label, style: TextStyle(fontSize: 10, color: colors.onSurface.withValues(alpha: 0.4))),
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],
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);
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}
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}
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