batch download

lib/appdata.dart

@@ -18,6 +18,7 @@ class _Appdata {
     "downloadSubPath": r"/${id}-p${index}.${ext}",
     "tagsWeight": "",
     "useTranslatedNameForDownload": false,
+    "maxDownloadParallelism": 3
   };
 
   bool lock = false;

lib/components/batch_download.dart

@@ -0,0 +1,144 @@
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:pixes/components/md.dart';
+import 'package:pixes/components/message.dart';
+import 'package:pixes/foundation/app.dart';
+import 'package:pixes/network/download.dart';
+import 'package:pixes/utils/translation.dart';
+
+import '../network/network.dart';
+
+class BatchDownloadButton extends StatelessWidget {
+  const BatchDownloadButton({super.key, required this.request});
+
+  final Future<Res<List<Illust>>> Function() request;
+
+  @override
+  Widget build(BuildContext context) {
+    return Button(
+      child: const Icon(MdIcons.download, size: 20,),
+      onPressed: () {
+        showDialog(
+            context: context,
+            barrierDismissible: false,
+            barrierColor: Colors.transparent,
+            useRootNavigator: false,
+            builder: (context) => _DownloadDialog(request));
+      },
+    );
+  }
+}
+
+class _DownloadDialog extends StatefulWidget {
+  const _DownloadDialog(this.request);
+
+  final Future<Res<List<Illust>>> Function() request;
+
+  @override
+  State<_DownloadDialog> createState() => _DownloadDialogState();
+}
+
+class _DownloadDialogState extends State<_DownloadDialog> {
+  int maxCount = 30;
+
+  bool loading = false;
+
+  bool cancel = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return ContentDialog(
+      title: Text("Batch download".tl),
+      content: SizedBox(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text('${"Maximum number of downloads".tl}:'),
+            const SizedBox(height: 16,),
+            SizedBox(
+              height: 42,
+              width: 196,
+              child: NumberBox(
+                value: maxCount,
+                onChanged: (value) {
+                  if(!loading) {
+                    setState(() => maxCount = value ?? maxCount);
+                  }
+                },
+                allowExpressions: true,
+                mode: SpinButtonPlacementMode.inline,
+                smallChange: 10,
+                largeChange: 30,
+                clearButton: false,
+              ),
+            )
+          ],
+        ).paddingVertical(8),
+      ),
+      actions: [
+        Button(child: Text("Cancel".tl), onPressed: () {
+          cancel = true;
+          context.pop();
+        }),
+        if(!loading)
+          FilledButton(onPressed: load, child: Text("Continue".tl))
+        else
+          FilledButton(onPressed: (){}, child: const SizedBox(
+            height: 20,
+            width: 64,
+            child: Center(
+              child: SizedBox.square(
+                dimension: 18,
+                child: ProgressRing(
+                  strokeWidth: 1.6,
+                ),
+              ),
+            ),
+          ))
+      ],
+    );
+  }
+
+  void load() async{
+    setState(() {
+      loading = true;
+    });
+
+    var request = widget.request();
+
+    List<Illust> all = [];
+    String? nextUrl;
+    int retryCount = 0;
+    while(nextUrl != "end" && all.length < maxCount) {
+      if(nextUrl != null) {
+        request = Network().getIllustsWithNextUrl(nextUrl);
+      }
+      var res = await request;
+      if(cancel || !mounted) {
+        return;
+      }
+      if(res.error) {
+        retryCount++;
+        if(retryCount > 3) {
+          setState(() {
+            loading = false;
+          });
+          showToast(context, message: "Error".tl);
+          return;
+        }
+        await Future.delayed(Duration(seconds: 1 << retryCount));
+        continue;
+      }
+      all.addAll(res.data);
+      nextUrl = res.subData ?? "end";
+    }
+    int i = 0;
+    for(var illust in all) {
+      if(i > maxCount)  return;
+      DownloadManager().addDownloadingTask(illust);
+      i++;
+    }
+    context.pop();
+  }
+}
+

lib/components/segmented_button.dart

@@ -23,7 +23,7 @@ class SegmentedButton<T> extends StatelessWidget {
       child: Card(
         padding: EdgeInsets.zero,
         child: SizedBox(
-          height: 36,
+          height: 28,
           child: Row(
             mainAxisSize: MainAxisSize.min,
             children: options.map((e) => buildButton(e)).toList(),

lib/network/download.dart

@@ -101,16 +101,29 @@ class DownloadingTask {
         }
         imagePaths.add(path);
         _downloadingIndex++;
+        _retryCount = 0;
       }
       onCompleted?.call(this);
     }
     catch(e, s) {
-      error = e.toString();
+      _handleError(e);
-      _stop = true;
       Log.error("Download", "Download error: $e\n$s");
     }
   }
 
+  int _retryCount = 0;
+
+  void _handleError(Object error) async{
+    _retryCount++;
+    if(_retryCount > 3) {
+      _stop = true;
+      error = error.toString();
+      return;
+    }
+    await Future.delayed(Duration(seconds: 1 << _retryCount));
+    _download();
+  }
+
   static String _generateFilePath(Illust illust, int index, String ext) {
     final String downloadPath = appdata.settings["downloadPath"];
     String subPathPatten = appdata.settings["downloadSubPath"];
@@ -297,4 +310,32 @@ class DownloadManager {
     ''', [illustId]);
     return res.map((e) => e["path"] as String).toList();
   }
+
+  Future<void> batchDownload(Future<Res<List<Illust>>> request, int maxCount) async{
+    List<Illust> all = [];
+    String? nextUrl;
+    int retryCount = 0;
+    while(nextUrl != "end" && all.length < maxCount) {
+      if(nextUrl != null) {
+        request = Network().getIllustsWithNextUrl(nextUrl);
+      }
+      var res = await request;
+      if(res.error) {
+        retryCount++;
+        if(retryCount > 3) {
+          throw res.error;
+        }
+        await Future.delayed(Duration(seconds: 1 << retryCount));
+        continue;
+      }
+      all.addAll(res.data);
+      nextUrl = res.subData ?? "end";
+    }
+    int i = 0;
+    for(var illust in all) {
+      if(i > maxCount)  return;
+      addDownloadingTask(illust);
+      i++;
+    }
+  }
 }

lib/pages/bookmarks.dart

@@ -1,5 +1,6 @@
 import 'package:fluent_ui/fluent_ui.dart';
 import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
+import 'package:pixes/components/batch_download.dart';
 import 'package:pixes/components/segmented_button.dart';
 import 'package:pixes/components/title_bar.dart';
 import 'package:pixes/foundation/app.dart';
@@ -34,7 +35,11 @@ class _BookMarkedArtworkPageState extends State<BookMarkedArtworkPage>{
   Widget buildTab() {
     return TitleBar(
       title: "Bookmarks".tl,
-      action: SegmentedButton(
+      action: Row(
+        children: [
+          BatchDownloadButton(request: () => Network().getBookmarkedIllusts(restrict)),
+          const SizedBox(width: 8,),
+          SegmentedButton(
             options: [
               SegmentedButtonOption("public", "Public".tl),
               SegmentedButtonOption("private", "Private".tl),
@@ -47,6 +52,8 @@ class _BookMarkedArtworkPageState extends State<BookMarkedArtworkPage>{
               }
             },
             value: restrict,
+          )
+        ],
       ),
     );
   }

lib/pages/downloading_page.dart

@@ -66,6 +66,7 @@ class _DownloadingPageState extends State<DownloadingPage> {
     controller[task.illust.id.toString()] ??= FlyoutController();
 
     return Card(
+      margin: const EdgeInsets.only(bottom: 8),
       padding: const EdgeInsets.symmetric(vertical: 8),
       child: SizedBox(
         height: 96,

lib/pages/following_artworks.dart

@@ -4,6 +4,7 @@ import 'package:pixes/components/title_bar.dart';
 import 'package:pixes/foundation/app.dart';
 import 'package:pixes/utils/translation.dart';
 
+import '../components/batch_download.dart';
 import '../components/illust_widget.dart';
 import '../components/loading.dart';
 import '../components/segmented_button.dart';
@@ -34,7 +35,11 @@ class _FollowingArtworksPageState extends State<FollowingArtworksPage> {
   Widget buildTab() {
     return TitleBar(
       title: "Following".tl,
-      action: SegmentedButton(
+      action: Row(
+        children: [
+          BatchDownloadButton(request: () => Network().getFollowingArtworks(restrict)),
+          const SizedBox(width: 8,),
+          SegmentedButton(
             options: [
               SegmentedButtonOption("all", "All".tl),
               SegmentedButtonOption("public", "Public".tl),
@@ -48,6 +53,8 @@ class _FollowingArtworksPageState extends State<FollowingArtworksPage> {
               }
             },
             value: restrict,
+          )
+        ],
       ),
     );
   }

lib/pages/ranking.dart

@@ -3,8 +3,10 @@ import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:pixes/foundation/app.dart';
 import 'package:pixes/utils/translation.dart';
 
+import '../components/batch_download.dart';
 import '../components/illust_widget.dart';
 import '../components/loading.dart';
+import '../components/title_bar.dart';
 import '../network/network.dart';
 
 class RankingPage extends StatefulWidget {
@@ -48,12 +50,12 @@ class _RankingPageState extends State<RankingPage> {
   }
 
   Widget buildHeader() {
-    return SizedBox(
+    return TitleBar(
-      child: Row(
+      title: "Ranking".tl,
+      action: Row(
         children: [
-          Text("Ranking".tl, style: const TextStyle(
+          BatchDownloadButton(request: () => Network().getRanking(type)),
-              fontSize: 20, fontWeight: FontWeight.bold),),
+          const SizedBox(width: 8,),
-          const Spacer(),
           DropDownButton(
             title: Text(types[type]!),
             items: types.entries.map((e) => MenuFlyoutItem(
@@ -66,8 +68,8 @@ class _RankingPageState extends State<RankingPage> {
             )).toList(),
           )
         ],
-      )
+      ),
-    ).padding(const EdgeInsets.symmetric(vertical: 8, horizontal: 16));
+    );
   }
 }
 

lib/pages/user_info_page.dart

@@ -2,6 +2,7 @@ import 'package:fluent_ui/fluent_ui.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:pixes/appdata.dart';
+import 'package:pixes/components/batch_download.dart';
 import 'package:pixes/components/loading.dart';
 import 'package:pixes/components/md.dart';
 import 'package:pixes/foundation/app.dart';
@@ -32,7 +33,12 @@ class _UserInfoPageState extends LoadingState<UserInfoPage, UserDetails> {
         slivers: [
           buildUser(),
           buildInformation(),
-          SliverToBoxAdapter(child: buildHeader("Artworks"),),
+          SliverToBoxAdapter(
+            child: buildHeader(
+              "Artworks",
+              action: BatchDownloadButton(
+                  request: () => Network().getUserIllusts(widget.id))
+            ),),
           _UserArtworks(data.id.toString(), key: ValueKey(data.id),),
           SliverPadding(padding: EdgeInsets.only(bottom: context.padding.bottom)),
         ],
@@ -146,13 +152,21 @@ class _UserInfoPageState extends LoadingState<UserInfoPage, UserDetails> {
     );
   }
 
-  Widget buildHeader(String title) {
+  Widget buildHeader(String title, {Widget? action}) {
     return SizedBox(
         width: double.infinity,
-        child: Text(
+        height: 38,
+        child: Row(
+          children: [
+            Text(
               title,
               style: const TextStyle(fontWeight: FontWeight.w600),
-        ).toAlign(Alignment.centerLeft)).paddingLeft(16).paddingVertical(4);
+            ).toAlign(Alignment.centerLeft),
+            const Spacer(),
+            if(action != null)
+              action.toAlign(Alignment.centerRight)
+          ],
+        ).paddingHorizontal(16)).paddingTop(8);
   }
 
   Widget buildInformation() {
@@ -181,7 +195,6 @@ class _UserInfoPageState extends LoadingState<UserInfoPage, UserDetails> {
           buildItem(icon: MdIcons.location_city_outlined, title: "Region", content: data!.region),
           buildItem(icon: MdIcons.work_outline, title: "Job".tl, content: data!.job),
           buildItem(icon: MdIcons.person_2_outlined, title: "Gender".tl, content: data!.gender),
-          const SizedBox(height: 8,),
           buildHeader("Social Network".tl),
           buildItem(title: "Webpage",
               content: data!.webpage,