download comics in local favorites page

assets/translation.json

@@ -249,7 +249,9 @@
     "Export as pdf": "导出为pdf",
     "Export as epub": "导出为epub",
     "Aggregated Search": "聚合搜索",
-    "No search results found": "未找到搜索结果"
+    "No search results found": "未找到搜索结果",
+    "Added @c comics to download queue." : "已添加 @c 本漫画到下载队列",
+    "Download started": "下载已开始"
   },
   "zh_TW": {
     "Home": "首頁",
@@ -501,6 +503,8 @@
     "Export as pdf": "匯出為pdf",
     "Export as epub": "匯出為epub",
     "Aggregated Search": "聚合搜索",
-    "No search results found": "未找到搜索結果"
+    "No search results found": "未找到搜索結果",
+    "Added @c comics to download queue." : "已添加 @c 本漫畫到下載隊列",
+    "Download started": "下載已開始"
   }
 }

lib/foundation/local.dart

@@ -389,7 +389,7 @@ class LocalManager with ChangeNotifier {
     return files.map((e) => "file://${e.path}").toList();
   }
 
-  Future<bool> isDownloaded(String id, ComicType type, [int? ep]) async {
+  bool isDownloaded(String id, ComicType type, [int? ep]) {
     var comic = find(id, type);
     if (comic == null) return false;
     if (comic.chapters == null || ep == null) return true;

lib/pages/favorites/favorites_page.dart

@@ -10,7 +10,9 @@ import 'package:venera/foundation/comic_source/comic_source.dart';
 import 'package:venera/foundation/comic_type.dart';
 import 'package:venera/foundation/consts.dart';
 import 'package:venera/foundation/favorites.dart';
+import 'package:venera/foundation/local.dart';
 import 'package:venera/foundation/res.dart';
+import 'package:venera/network/download.dart';
 import 'package:venera/pages/comic_page.dart';
 import 'package:venera/utils/io.dart';
 import 'package:venera/utils/translations.dart';

lib/pages/favorites/local_favorites_page.dart

@@ -53,8 +53,6 @@ class _LocalFavoritesPageState extends State<_LocalFavoritesPage> {
     super.initState();
   }
 
-  @override
-  Widget build(BuildContext context) {
   void selectAll() {
     setState(() {
       selectedComics = comics.asMap().map((k, v) => MapEntry(v, true));
@@ -70,6 +68,42 @@ class _LocalFavoritesPageState extends State<_LocalFavoritesPage> {
     });
   }
 
+  bool downloadComic(FavoriteItem c) {
+    var source = c.type.comicSource;
+    if (source != null) {
+      bool isDownloaded = LocalManager().isDownloaded(
+        c.id,
+        (c).type,
+      );
+      if (isDownloaded) {
+        return false;
+      }
+      LocalManager().addTask(ImagesDownloadTask(
+        source: source,
+        comicId: c.id,
+        comicTitle: c.title,
+      ));
+      return true;
+    }
+    return false;
+  }
+
+  void downloadSelected() {
+    int count = 0;
+    for (var c in selectedComics.keys) {
+      if (downloadComic(c as FavoriteItem)) {
+        count++;
+      }
+    }
+    if (count > 0) {
+      context.showMessage(
+        message: "Added @c comics to download queue.".tlParams({"c": count}),
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
     var body = Scaffold(
       body: SmoothCustomScrollView(slivers: [
         if (!searchMode && !multiSelectMode)
@@ -300,6 +334,11 @@ class _LocalFavoritesPageState extends State<_LocalFavoritesPage> {
                         },
                       );
                     }),
+                MenuEntry(
+                  icon: Icons.download,
+                  text: "Download".tl,
+                  onClick: downloadSelected,
+                ),
               ]),
             ],
           )
@@ -336,6 +375,20 @@ class _LocalFavoritesPageState extends State<_LocalFavoritesPage> {
         SliverGridComics(
           comics: comics,
           selections: selectedComics,
+          menuBuilder: (c) {
+            return [
+              MenuEntry(
+                icon: Icons.download,
+                text: "Download".tl,
+                onClick: () {
+                  downloadComic(c as FavoriteItem);
+                  context.showMessage(
+                    message: "Download started".tl,
+                  );
+                },
+              ),
+            ];
+          },
           onTap: multiSelectMode
               ? (c) {
                   setState(() {
@@ -597,9 +650,12 @@ class _ReorderComicsPageState extends State<_ReorderComicsPage> {
   }
 
   Color lightenColor(Color color, double lightenValue) {
-    int red = (_floatToInt8(color.r) + ((255 - color.r) * lightenValue)).round();
+    int red =
-    int green = (_floatToInt8(color.g) * 255 + ((255 - color.g) * lightenValue)).round();
+        (_floatToInt8(color.r) + ((255 - color.r) * lightenValue)).round();
-    int blue = (_floatToInt8(color.b) * 255 + ((255 - color.b) * lightenValue)).round();
+    int green = (_floatToInt8(color.g) * 255 + ((255 - color.g) * lightenValue))
+        .round();
+    int blue = (_floatToInt8(color.b) * 255 + ((255 - color.b) * lightenValue))
+        .round();
 
     return Color.fromARGB(_floatToInt8(color.a), red, green, blue);
   }