feat: load file sub

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/video/controller.dart

@@ -1477,7 +1477,7 @@ class VideoDetailController extends GetxController
   }
 
   RxList<Subtitle> subtitles = RxList<Subtitle>();
-  late final Map<int, String> _vttSubtitles = {};
+  late final Map<int, String> vttSubtitles = {};
   late final RxInt vttSubtitlesIndex = (-1).obs;
   late final RxBool showVP = true.obs;
   late final RxList<Segment> viewPointList = <Segment>[].obs;
@@ -1493,17 +1493,18 @@ class VideoDetailController extends GetxController
     }
 
     void setSub(String subtitle) {
+      final sub = subtitles[index - 1];
       plPlayerController.videoPlayerController?.setSubtitleTrack(
         SubtitleTrack.data(
           subtitle,
-          title: subtitles[index - 1].lanDoc,
-          language: subtitles[index - 1].lan,
+          title: sub.lanDoc,
+          language: sub.lan,
         ),
       );
       vttSubtitlesIndex.value = index;
     }
 
-    String? subtitle = _vttSubtitles[index - 1];
+    String? subtitle = vttSubtitles[index - 1];
     if (subtitle != null) {
       setSub(subtitle);
     } else {
@@ -1511,7 +1512,7 @@ class VideoDetailController extends GetxController
         subtitles[index - 1].subtitleUrl!,
       );
       if (result != null) {
-        _vttSubtitles[index - 1] = result;
+        vttSubtitles[index - 1] = result;
         setSub(result);
       }
     }
@@ -1548,12 +1549,17 @@ class VideoDetailController extends GetxController
   late bool continuePlayingPart = Pref.continuePlayingPart;
 
   Future<void> _queryPlayInfo() async {
-    _vttSubtitles.clear();
+    vttSubtitles.clear();
     vttSubtitlesIndex.value = 0;
     if (plPlayerController.showViewPoints) {
       viewPointList.clear();
     }
-    var res = await VideoHttp.playInfo(bvid: bvid, cid: cid.value);
+    var res = await VideoHttp.playInfo(
+      bvid: bvid,
+      cid: cid.value,
+      seasonId: seasonId,
+      epId: epId,
+    );
     if (res['status']) {
       PlayInfoData playInfo = res['data'];
       // interactive video
@@ -1699,6 +1705,11 @@ class VideoDetailController extends GetxController
     // danmaku
     savedDanmaku = null;
 
+    // subtitle
+    subtitles.clear();
+    vttSubtitlesIndex.value = -1;
+    vttSubtitles.clear();
+
     if (!isFileSource) {
       // language
       languages.value = null;
@@ -1709,11 +1720,6 @@ class VideoDetailController extends GetxController
         dmTrend.value = null;
       }
 
-      // subtitle
-      subtitles.clear();
-      vttSubtitlesIndex.value = -1;
-      _vttSubtitles.clear();
-
       // view point
       if (plPlayerController.showViewPoints) {
         viewPointList.clear();

lib/pages/video/widgets/header_control.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
 
@@ -12,12 +13,14 @@ import 'package:PiliPlus/http/danmaku.dart';
 import 'package:PiliPlus/http/danmaku_block.dart';
 import 'package:PiliPlus/http/init.dart';
 import 'package:PiliPlus/http/live.dart';
+import 'package:PiliPlus/http/video.dart';
 import 'package:PiliPlus/models/common/super_resolution_type.dart';
 import 'package:PiliPlus/models/common/video/audio_quality.dart';
 import 'package:PiliPlus/models/common/video/cdn_type.dart';
 import 'package:PiliPlus/models/common/video/video_decode_type.dart';
 import 'package:PiliPlus/models/common/video/video_quality.dart';
 import 'package:PiliPlus/models/video/play/url.dart';
+import 'package:PiliPlus/models_new/video/video_play_info/subtitle.dart';
 import 'package:PiliPlus/pages/common/common_intro_controller.dart';
 import 'package:PiliPlus/pages/danmaku/dnamaku_model.dart';
 import 'package:PiliPlus/pages/setting/widgets/select_dialog.dart';
@@ -43,6 +46,7 @@ import 'package:PiliPlus/utils/utils.dart';
 import 'package:PiliPlus/utils/video_utils.dart';
 import 'package:canvas_danmaku/canvas_danmaku.dart';
 import 'package:dio/dio.dart';
+import 'package:file_picker/file_picker.dart';
 import 'package:floating/floating.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
@@ -592,17 +596,66 @@ class HeaderControlState extends State<HeaderControl> {
                   leading: const Icon(CustomIcons.dm_settings, size: 20),
                   title: const Text('弹幕设置', style: titleStyle),
                 ),
-                if (!videoDetailCtr.isFileSource)
-                  ListTile(
-                    dense: true,
-                    onTap: () {
-                      Get.back();
-                      showSetSubtitle();
-                    },
-                    leading: const Icon(Icons.subtitles_outlined, size: 20),
-                    title: const Text('字幕设置', style: titleStyle),
-                  ),
-                if (videoDetailCtr.subtitles.isNotEmpty)
+                ListTile(
+                  dense: true,
+                  onTap: () {
+                    Get.back();
+                    showSetSubtitle();
+                  },
+                  leading: const Icon(Icons.subtitles_outlined, size: 20),
+                  title: const Text('字幕设置', style: titleStyle),
+                ),
+                ListTile(
+                  dense: true,
+                  onTap: () async {
+                    Get.back();
+                    try {
+                      final FilePickerResult? file = await FilePicker.platform
+                          .pickFiles();
+                      if (file != null) {
+                        final first = file.files.first;
+                        final path = first.path;
+                        if (path != null) {
+                          final file = File(path);
+                          final stream = file.openRead().transform(
+                            utf8.decoder,
+                          );
+                          final buffer = StringBuffer();
+                          await for (final chunk in stream) {
+                            if (!mounted) return;
+                            buffer.write(chunk);
+                          }
+                          if (!mounted) return;
+                          String sub = buffer.toString();
+                          final name = first.name;
+                          if (name.endsWith('.json')) {
+                            sub = await compute<List, String>(
+                              VideoHttp.processList,
+                              jsonDecode(sub)['body'],
+                            );
+                            if (!mounted) return;
+                          }
+                          final length = videoDetailCtr.subtitles.length;
+                          videoDetailCtr
+                            ..subtitles.add(
+                              Subtitle(
+                                lan: '',
+                                lanDoc: name.split('.').firstOrNull ?? name,
+                              ),
+                            )
+                            ..vttSubtitles[length] = sub
+                            ..setSubtitle(length + 1);
+                        }
+                      }
+                    } catch (e) {
+                      SmartDialog.showToast('加载失败: $e');
+                    }
+                  },
+                  leading: const Icon(Icons.file_open_outlined, size: 20),
+                  title: const Text('加载字幕', style: titleStyle),
+                ),
+                if (!videoDetailCtr.isFileSource &&
+                    videoDetailCtr.subtitles.isNotEmpty)
                   ListTile(
                     dense: true,
                     onTap: () {
@@ -1065,9 +1118,11 @@ class HeaderControlState extends State<HeaderControl> {
                       dense: true,
                       onTap: () async {
                         Get.back();
+                        final url = item.subtitleUrl;
+                        if (url == null || url.isEmpty) return;
                         try {
                           final res = await Request.dio.get<Uint8List>(
-                            item.subtitleUrl!.http2https,
+                            url.http2https,
                             options: Options(
                               responseType: ResponseType.bytes,
                               headers: Constants.baseHeaders,