generated from dellevin/template
新增阅读器功能，待优化
This commit is contained in:
DelLevin-Home
71
lib/utils/book_file_helper.dart
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71
lib/utils/book_file_helper.dart
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@@ -0,0 +1,71 @@
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import 'dart:io';
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import 'package:path_provider/path_provider.dart';
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import 'package:path/path.dart' as p;
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/// 阅读器文件路径管理
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class BookFileHelper {
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static final BookFileHelper instance = BookFileHelper._init();
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BookFileHelper._init();
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String? _rootPath;
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Future<String> get _root async {
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if (_rootPath != null) return _rootPath!;
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final dir = await getApplicationDocumentsDirectory();
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_rootPath = p.join(dir.path, 'mooknote', 'book_file');
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await Directory(_rootPath!).create(recursive: true);
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return _rootPath!;
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}
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Future<String> get bookFileRoot async => _root;
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Future<String> get coverDir async {
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final root = await _root;
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final dir = p.join(root, 'cover');
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await Directory(dir).create(recursive: true);
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return dir;
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}
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Future<String> bookDir(String bookId) async {
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final root = await _root;
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final dir = p.join(root, bookId);
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await Directory(dir).create(recursive: true);
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return dir;
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}
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Future<String> bookFile(String bookId, String fileName) async {
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final dir = await bookDir(bookId);
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return p.join(dir, fileName);
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}
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String? relativePath(String absolutePath) {
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if (_rootPath == null) return null;
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if (absolutePath.startsWith(_rootPath!)) {
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return absolutePath.substring(_rootPath!.length + 1);
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}
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return null;
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}
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Future<String> absolutePath(String relativePath) async {
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final root = await _root;
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return p.join(root, relativePath);
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}
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Future<void> deleteBookFiles(String bookId) async {
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final dir = await bookDir(bookId);
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if (await Directory(dir).exists()) {
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await Directory(dir).delete(recursive: true);
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}
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}
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/// 同步初始化（必须在使用 resolveAbsolutePath 前调用一次 bookFileRoot）
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Future<void> ensureInitialized() async {
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await _root;
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}
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/// 根据相对路径解析绝对路径（调用前需确保已初始化）
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String resolveAbsolutePath(String relativePath) {
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if (_rootPath == null) return relativePath;
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return p.join(_rootPath!, relativePath);
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}
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}
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6
lib/utils/color_converter.dart
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6
lib/utils/color_converter.dart
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/// Dart ARGB 颜色字符串转换为 JS RGBA 格式
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/// dartColor: "FF0066FF" (AARRGGBB) → jsColor: "0066FFFF" (RRGGBBAA)
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String convertDartColorToJs(String dartColor) {
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if (dartColor.length < 8) return dartColor;
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return dartColor.substring(2) + dartColor.substring(0, 2);
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}
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@@ -57,7 +57,7 @@ class DatabaseHelper {
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return await openDatabase(
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path,
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version: 13,
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version: 14,
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onCreate: _createDB,
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onUpgrade: _onUpgrade,
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);
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@@ -115,6 +115,9 @@ class DatabaseHelper {
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if (oldVersion < 13) {
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await _upgradeToV13(db);
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}
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if (oldVersion < 14) {
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await _createReaderBooksTable(db);
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}
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}
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/// 升级books表到V11（添加ISBN和出版时间字段）
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@@ -154,6 +157,26 @@ class DatabaseHelper {
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}
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}
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/// 升级到V14：创建阅读器书籍表
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Future<void> _createReaderBooksTable(Database db) async {
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await db.execute('''
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CREATE TABLE IF NOT EXISTS reader_books (
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id TEXT PRIMARY KEY,
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title TEXT NOT NULL,
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author TEXT DEFAULT '',
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cover_path TEXT,
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file_path TEXT NOT NULL,
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file_name TEXT NOT NULL,
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file_extension TEXT NOT NULL DEFAULT 'epub',
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last_read_cfi TEXT DEFAULT '',
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reading_percentage REAL DEFAULT 0.0,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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is_deleted INTEGER DEFAULT 0
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)
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''');
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}
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/// 升级到V13：创建标签表并回填已有数据
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Future<void> _upgradeToV13(Database db) async {
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await db.execute('''
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@@ -587,6 +610,24 @@ class DatabaseHelper {
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UNIQUE(name, type)
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)
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''');
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// 阅读器书籍表
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await db.execute('''
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CREATE TABLE IF NOT EXISTS reader_books (
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id TEXT PRIMARY KEY,
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title TEXT NOT NULL,
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author TEXT DEFAULT '',
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cover_path TEXT,
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file_path TEXT NOT NULL,
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file_name TEXT NOT NULL,
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file_extension TEXT NOT NULL DEFAULT 'epub',
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last_read_cfi TEXT DEFAULT '',
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reading_percentage REAL DEFAULT 0.0,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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is_deleted INTEGER DEFAULT 0
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)
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''');
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}
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// 关闭数据库
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69
lib/utils/reader_book_dao.dart
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69
lib/utils/reader_book_dao.dart
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@@ -0,0 +1,69 @@
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import 'package:flutter/foundation.dart';
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import '../models/reader_book.dart';
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import 'database_helper.dart';
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/// 阅读器书籍 DAO
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class ReaderBookDao {
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final DatabaseHelper _dbHelper = DatabaseHelper.instance;
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Future<T> _wrap<T>(String op, Future<T> Function() fn) async {
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try {
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return await fn();
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} catch (e) {
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debugPrint('[ReaderBookDao] $op error: $e');
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rethrow;
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}
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}
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Future<List<ReaderBook>> getAllReaderBooks() => _wrap('getAllReaderBooks', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'reader_books',
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where: 'is_deleted = ?',
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whereArgs: [0],
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orderBy: 'created_at DESC',
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);
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return List.generate(maps.length, (i) => ReaderBook.fromJson(maps[i]));
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});
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Future<ReaderBook?> getReaderBookById(String id) => _wrap('getReaderBookById', () async {
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final db = await _dbHelper.database;
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final List<Map<String, dynamic>> maps = await db.query(
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'reader_books',
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where: 'id = ? AND is_deleted = ?',
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whereArgs: [id, 0],
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);
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if (maps.isEmpty) return null;
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return ReaderBook.fromJson(maps.first);
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});
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Future<void> insertReaderBook(ReaderBook book) => _wrap('insertReaderBook', () async {
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final db = await _dbHelper.database;
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await db.insert('reader_books', book.toJson());
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});
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Future<void> updateReaderBook(ReaderBook book) => _wrap('updateReaderBook', () async {
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final db = await _dbHelper.database;
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await db.update(
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'reader_books',
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book.toJson(),
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where: 'id = ?',
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whereArgs: [book.id],
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);
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});
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Future<void> deleteReaderBook(String id) => _wrap('deleteReaderBook', () async {
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final db = await _dbHelper.database;
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await db.update(
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'reader_books',
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{'is_deleted': 1, 'updated_at': DateTime.now().toIso8601String()},
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where: 'id = ?',
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whereArgs: [id],
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);
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});
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Future<void> permanentDeleteReaderBook(String id) => _wrap('permanentDeleteReaderBook', () async {
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final db = await _dbHelper.database;
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await db.delete('reader_books', where: 'id = ?', whereArgs: [id]);
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});
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}
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69
lib/utils/reader_url_generator.dart
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69
lib/utils/reader_url_generator.dart
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import 'dart:convert';
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import '../service/book_server.dart';
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import 'color_converter.dart';
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/// 生成 foliate-js 阅读器 URL
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String generateReaderUrl({
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required String fileUrl,
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String cfi = '',
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required String backgroundColor,
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required String textColor,
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bool isDarkMode = false,
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}) {
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final indexHtmlPath = 'http://127.0.0.1:${Server().port}/foliate-js/index.html';
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final jsBg = convertDartColorToJs(backgroundColor);
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final jsTc = convertDartColorToJs(textColor);
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final style = {
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'fontSize': 100, // 100 = base 100%
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'fontName': '',
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'fontPath': '',
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'fontWeight': 400,
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'letterSpacing': 0,
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'spacing': 1.6,
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'paragraphSpacing': 0.6,
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'textIndent': 2,
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'fontColor': '#$jsTc',
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'backgroundColor': '#$jsBg',
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'topMargin': 25,
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'bottomMargin': 25,
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'sideMargin': 15,
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'justify': true,
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'hyphenate': false,
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'pageTurnStyle': 'slide',
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'maxColumnCount': 1,
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'columnThreshold': 3,
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'writingMode': 'horizontal-tb',
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'textAlign': 'justify',
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'backgroundImage': '',
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'bgimgBlur': 0,
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'bgimgOpacity': 1.0,
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'bgimgFit': 'cover',
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'allowScript': false,
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'customCSS': '',
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'customCSSEnabled': false,
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'useBookStyles': true,
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'headingFontSize': 130,
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'codeHighlightTheme': 'atom-one-light',
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};
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final readingRules = {
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'convertChineseMode': 'none',
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'bionicReadingMode': false,
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};
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final params = {
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'importing': false,
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'url': fileUrl,
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'initialCfi': cfi,
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'style': style,
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'readingRules': readingRules,
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};
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final queryParts = params.entries
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.map((e) => '${e.key}=${Uri.encodeComponent(jsonEncode(e.value))}')
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.join('&');
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return '$indexHtmlPath?$queryParts';
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}
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