原生epub阅读

2026-06-27 14:06:44 +08:00
parent 5acbc3a602
commit d54e33e4cf
177 changed files with 6500 additions and 93933 deletions
--- a/lib/utils/epub/epub_theme.dart
+++ b/lib/utils/epub/epub_theme.dart
@@ -0,0 +1,111 @@
+import 'package:flutter/material.dart';
+import 'reader_scripts.dart';
+
+class EpubTheme {
+  final double zoom;
+  final bool shouldOverrideTextColor;
+  final ColorScheme colorScheme;
+  final Color? overridePrimaryColor;
+  final EdgeInsets padding;
+
+  /// File name (with extension) of the custom font, or null for epub default.
+  final String? fontFileName;
+
+  /// When true, force the custom font on top of the epub's own font rules.
+  final bool overrideFontFamily;
+
+  EpubTheme({
+    required this.zoom,
+    required this.shouldOverrideTextColor,
+    required this.colorScheme,
+    this.overridePrimaryColor,
+    required this.padding,
+    this.fontFileName,
+    this.overrideFontFamily = false,
+  });
+
+  bool get isDark => colorScheme.brightness == Brightness.dark;
+
+  Color get surfaceColor => colorScheme.surface;
+
+  EpubTheme copyWith({
+    double? zoom,
+    bool? shouldOverrideTextColor,
+    ColorScheme? colorScheme,
+    Color? overridePrimaryColor,
+    EdgeInsets? padding,
+    Object? fontFileName = _kUnset,
+    bool? overrideFontFamily,
+  }) {
+    return EpubTheme(
+      zoom: zoom ?? this.zoom,
+      shouldOverrideTextColor:
+          shouldOverrideTextColor ?? this.shouldOverrideTextColor,
+      colorScheme: colorScheme ?? this.colorScheme,
+      overridePrimaryColor: overridePrimaryColor ?? this.overridePrimaryColor,
+      padding: padding ?? this.padding,
+      fontFileName: identical(fontFileName, _kUnset)
+          ? this.fontFileName
+          : fontFileName as String?,
+      overrideFontFamily: overrideFontFamily ?? this.overrideFontFamily,
+    );
+  }
+
+  static const Object _kUnset = Object();
+
+  Map<String, dynamic> toThemeMap() {
+    return {
+      'padding': {'top': padding.top, 'left': padding.left},
+      'theme': {
+        'zoom': zoom,
+        'shouldOverrideTextColor': shouldOverrideTextColor,
+
+        'primaryColor': overridePrimaryColor != null
+            ? colorToMap(overridePrimaryColor!)
+            : colorToMap(colorScheme.primary),
+        'onPrimaryColor': colorToMap(colorScheme.onPrimary),
+        'secondaryColor': colorToMap(colorScheme.secondary),
+        'onSecondaryColor': colorToMap(colorScheme.onSecondary),
+        'errorColor': colorToMap(colorScheme.error),
+        'onErrorColor': colorToMap(colorScheme.onError),
+        'surfaceColor': colorToMap(colorScheme.surface),
+        'onSurfaceColor': colorToMap(colorScheme.onSurface),
+        'primaryContainerColor': colorToMap(colorScheme.primaryContainer),
+        'onSurfaceVariantColor': colorToMap(colorScheme.onSurfaceVariant),
+        'outlineVariantColor': colorToMap(colorScheme.outlineVariant),
+        'surfaceContainerColor': colorToMap(colorScheme.surfaceContainer),
+        'surfaceContainerHighColor': colorToMap(
+          colorScheme.surfaceContainerHigh,
+        ),
+
+        'fontFileName': fontFileName,
+        'overrideFontFamily': overrideFontFamily,
+      },
+    };
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is EpubTheme &&
+        other.zoom == zoom &&
+        other.shouldOverrideTextColor == shouldOverrideTextColor &&
+        other.colorScheme == colorScheme &&
+        other.overridePrimaryColor == overridePrimaryColor &&
+        other.padding == padding &&
+        other.fontFileName == fontFileName &&
+        other.overrideFontFamily == overrideFontFamily;
+  }
+
+  @override
+  int get hashCode => Object.hash(
+        zoom,
+        shouldOverrideTextColor,
+        colorScheme,
+        overridePrimaryColor,
+        padding,
+        fontFileName,
+        overrideFontFamily,
+      );
+}