re init

lib/ui/tools/downloader/downloader_dialog_ui_model.dart

@@ -0,0 +1,100 @@
+import 'dart:io';
+
+import 'package:file_picker/file_picker.dart';
+import 'package:hyper_thread_downloader/hyper_thread_downloader.dart';
+import 'package:starcitizen_doctor/base/ui_model.dart';
+
+class DownloaderDialogUIModel extends BaseUIModel {
+  final String fileName;
+  String savePath;
+  final String downloadUrl;
+  final bool showChangeSavePathDialog;
+  final int threadCount;
+
+  DownloaderDialogUIModel(this.fileName, this.savePath, this.downloadUrl,
+      {this.showChangeSavePathDialog = false, this.threadCount = 1});
+
+  final downloader = HyperDownload();
+
+  int? downloadTaskId;
+
+  bool isInMerging = false;
+
+  double? progress;
+  double? speed;
+  double? remainTime;
+  int? count;
+  int? total;
+
+  @override
+  void initModel() {
+    super.initModel();
+    _initDownload();
+  }
+
+  _initDownload() async {
+    if (showChangeSavePathDialog) {
+      final userSelect = await FilePicker.platform.saveFile(
+          initialDirectory: savePath,
+          fileName: fileName,
+          lockParentWindow: true);
+      if (userSelect == null) {
+        Navigator.pop(context!);
+        return;
+      }
+      final f = File(userSelect);
+      if (await f.exists()) {
+        await f.delete();
+      }
+      savePath = userSelect;
+      dPrint(savePath);
+      notifyListeners();
+    } else {
+      savePath = "$savePath/$fileName";
+    }
+    // start download
+    downloader.startDownload(
+        url: downloadUrl,
+        savePath: savePath,
+        threadCount: threadCount,
+        prepareWorking: (bool done) {},
+        workingMerge: (bool done) {
+          isInMerging = true;
+          progress = null;
+          notifyListeners();
+        },
+        downloadProgress: ({
+          required double progress,
+          required double speed,
+          required double remainTime,
+          required int count,
+          required int total,
+        }) {
+          this.progress = ((progress) * 100);
+          this.speed = speed;
+          this.remainTime = remainTime;
+          this.count = count;
+          this.total = total;
+          notifyListeners();
+        },
+        downloadComplete: () {
+          notifyListeners();
+          Navigator.pop(context!, savePath);
+        },
+        downloadFailed: (String reason) {
+          notifyListeners();
+          showToast(context!, "下载失败！ $reason");
+        },
+        downloadTaskId: (int id) {
+          downloadTaskId = id;
+        },
+        downloadingLog: (String log) {});
+  }
+
+  doCancel() {
+    if (downloadTaskId != null) {
+      downloader.stopDownload(id: downloadTaskId!);
+    }
+    Navigator.pop(context!, "cancel");
+  }
+}