added disable reader scroll animation (#150)

lib/src/constants/db_keys.dart

@@ -21,6 +21,7 @@ enum DBKeys {
   readerMagnifierSize(1.0),
   readerNavigationLayout(ReaderNavigationLayout.disabled),
   invertTap(false),
+  scrollAnimation(true),
   showNSFW(true),
   downloadedBadge(true),
   unreadBadge(true),

lib/src/features/manga_book/presentation/reader/widgets/reader_mode/continuous_reader_mode.dart

@@ -6,6 +6,7 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
 
 import '../../../../../../constants/app_constants.dart';
@@ -14,12 +15,13 @@ import '../../../../../../constants/endpoints.dart';
 
 import '../../../../../../utils/extensions/custom_extensions.dart';
 import '../../../../../../widgets/server_image.dart';
+import '../../../../../settings/presentation/reader/widgets/reader_scroll_animation_tile/reader_scroll_animation_tile.dart';
 import '../../../../domain/chapter/chapter_model.dart';
 import '../../../../domain/manga/manga_model.dart';
 import '../chapter_separator.dart';
 import '../reader_wrapper.dart';
 
-class ContinuousReaderMode extends HookWidget {
+class ContinuousReaderMode extends HookConsumerWidget {
   const ContinuousReaderMode({
     super.key,
     required this.manga,
@@ -36,7 +38,7 @@ class ContinuousReaderMode extends HookWidget {
   final Axis scrollDirection;
   final bool reverse;
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
     final scrollController = useMemoized(() => ItemScrollController());
     final positionsListener = useMemoized(() => ItemPositionsListener.create());
     final currentIndex = useState(
@@ -76,12 +78,17 @@ class ContinuousReaderMode extends HookWidget {
       onPrevious: () {
         final ItemPosition itemPosition =
             positionsListener.itemPositions.value.toList().first;
-        scrollController.scrollTo(
-          index: itemPosition.index,
-          duration: kDuration,
-          curve: kCurve,
-          alignment: itemPosition.itemLeadingEdge + .8,
-        );
+        ref.read(readerScrollAnimationProvider).ifNull(true)
+            ? scrollController.scrollTo(
+                index: itemPosition.index,
+                duration: kDuration,
+                curve: kCurve,
+                alignment: itemPosition.itemLeadingEdge + .8,
+              )
+            : scrollController.jumpTo(
+                index: itemPosition.index,
+                alignment: itemPosition.itemLeadingEdge + .8,
+              );
       },
       onNext: () {
         ItemPosition itemPosition = positionsListener.itemPositions.value.first;
@@ -94,12 +101,17 @@ class ContinuousReaderMode extends HookWidget {
           index = itemPosition.index + 1;
           alignment = 0;
         }
-        scrollController.scrollTo(
-          index: index,
-          duration: kDuration,
-          curve: kCurve,
-          alignment: alignment,
-        );
+        ref.read(readerScrollAnimationProvider).ifNull(true)
+            ? scrollController.scrollTo(
+                index: index,
+                duration: kDuration,
+                curve: kCurve,
+                alignment: alignment,
+              )
+            : scrollController.jumpTo(
+                index: index,
+                alignment: alignment,
+              );
       },
       child: ScrollablePositionedList.separated(
         itemScrollController: scrollController,

lib/src/features/settings/presentation/reader/reader_settings_screen.dart

@@ -12,6 +12,7 @@ import 'widgets/reader_magnifier_size_slider/reader_magnifier_size_slider.dart';
 import 'widgets/reader_mode_tile/reader_mode_tile.dart';
 import 'widgets/reader_navigation_layout_tile/reader_navigation_layout_tile.dart';
 import 'widgets/reader_padding_slider/reader_padding_slider.dart';
+import 'widgets/reader_scroll_animation_tile/reader_scroll_animation_tile.dart';
 
 class ReaderSettingsScreen extends StatelessWidget {
   const ReaderSettingsScreen({super.key});
@@ -25,6 +26,7 @@ class ReaderSettingsScreen extends StatelessWidget {
           ReaderModeTile(),
           ReaderNavigationLayoutTile(),
           ReaderInvertTapTile(),
+          ReaderScrollAnimationTile(),
           ReaderPaddingSlider(),
           ReaderMagnifierSizeSlider(),
         ],

lib/src/features/settings/presentation/reader/widgets/reader_invert_tap_tile/reader_invert_tap_tile.dart

@@ -32,9 +32,7 @@ class ReaderInvertTapTile extends HookConsumerWidget {
     return SwitchListTile(
       controlAffinity: ListTileControlAffinity.trailing,
       secondary: const Icon(Icons.switch_left_rounded),
-      title: Text(
-        context.l10n!.readerNavigationLayoutInvert,
-      ),
+      title: Text(context.l10n!.readerNavigationLayoutInvert),
       onChanged: ref.read(invertTapProvider.notifier).update,
       value: ref.watch(invertTapProvider).ifNull(),
     );

lib/src/features/settings/presentation/reader/widgets/reader_scroll_animation_tile/reader_scroll_animation_tile.dart

@@ -0,0 +1,41 @@
+// Copyright (c) 2022 Contributors to the Suwayomi project
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../../../../../../constants/db_keys.dart';
+
+import '../../../../../../utils/extensions/custom_extensions.dart';
+import '../../../../../../utils/mixin/shared_preferences_client_mixin.dart';
+
+part 'reader_scroll_animation_tile.g.dart';
+
+@riverpod
+class ReaderScrollAnimation extends _$ReaderScrollAnimation
+    with SharedPreferenceClientMixin<bool> {
+  @override
+  bool? build() => initialize(
+        ref,
+        key: DBKeys.scrollAnimation.name,
+        initial: DBKeys.scrollAnimation.initial,
+      );
+}
+
+class ReaderScrollAnimationTile extends HookConsumerWidget {
+  const ReaderScrollAnimationTile({super.key});
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return SwitchListTile(
+      controlAffinity: ListTileControlAffinity.trailing,
+      secondary: const Icon(Icons.animation_rounded),
+      title: Text(context.l10n!.readerScrollAnimation),
+      onChanged: ref.read(readerScrollAnimationProvider.notifier).update,
+      value: ref.watch(readerScrollAnimationProvider).ifNull(),
+    );
+  }
+}

lib/src/l10n/app_en.arb

@@ -436,6 +436,9 @@
     "@readerNavigationLayoutInvert": {
         "description": "Switch title to invert Tap to scroll in reader screen"
     },
+    "@readerScrollAnimation": {
+        "description": "Switch title to Disable scroll animation in reader screen"
+    },
     "@readerNavigationLayoutKindlish": {
         "description": "Radio button text for Reader Navigation Layout - Kindle-ish"
     },
@@ -723,6 +726,7 @@
     "readerNavigationLayoutDisabled": "Disabled",
     "readerNavigationLayoutEdge": "Edge",
     "readerNavigationLayoutInvert": "Invert tapping",
+    "readerScrollAnimation": "Scroll animation",
     "readerNavigationLayoutKindlish": "Kindle-ish",
     "readerNavigationLayoutLShaped": "L Shaped",
     "readerNavigationLayoutRightAndLeft": "Right And Left",