fix: update macos (#12578)

* fix: update macos

1. Use `ditto` instead of `cp -r`.
2. Add prompt for extracting dmg.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: error to err

Signed-off-by: fufesou <linlong1266@gmail.com>

* Refact: Remove "Extracting"

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>
Co-authored-by: RustDesk <71636191+rustdesk@users.noreply.github.com>

flutter/lib/desktop/widgets/update_progress.dart

@@ -7,7 +7,10 @@ import 'package:flutter_hbb/models/platform_model.dart';
 import 'package:get/get.dart';
 import 'package:url_launcher/url_launcher.dart';
 
+final _isExtracting = false.obs;
+
 void handleUpdate(String releasePageUrl) {
+  _isExtracting.value = false;
   String downloadUrl = releasePageUrl.replaceAll('tag', 'download');
   String version = downloadUrl.substring(downloadUrl.lastIndexOf('/') + 1);
   final String downloadFile =
@@ -25,13 +28,14 @@ void handleUpdate(String releasePageUrl) {
   gFFI.dialogManager.dismissAll();
   gFFI.dialogManager.show((setState, close, context) {
     return CustomAlertDialog(
-        title: Text(translate('Downloading {$appName}')),
+        title: Obx(() => Text(translate(
+            _isExtracting.isTrue ? 'Installing ...' : 'Downloading {$appName}'))),
         content:
             UpdateProgress(releasePageUrl, downloadUrl, downloadId, onCanceled)
                 .marginSymmetric(horizontal: 8)
                 .paddingOnly(top: 12),
         actions: [
-          dialogButton(translate('Cancel'), onPressed: () async {
+          if (_isExtracting.isFalse) dialogButton(translate('Cancel'), onPressed: () async {
             onCanceled.value();
             await bind.mainSetCommon(
                 key: 'cancel-downloader', value: downloadId.value);
@@ -71,6 +75,7 @@ class UpdateProgressState extends State<UpdateProgress> {
   int _downloadedSize = 0;
   int _getDataFailedCount = 0;
   final String _eventKeyDownloadNewVersion = 'download-new-version';
+  final String _eventKeyExtractUpdateDmg = 'extract-update-dmg';
 
   @override
   void initState() {
@@ -82,6 +87,11 @@ class UpdateProgressState extends State<UpdateProgress> {
         _eventKeyDownloadNewVersion, handleDownloadNewVersion,
         replace: true);
     bind.mainSetCommon(key: 'download-new-version', value: widget.downloadUrl);
+    if (isMacOS) {
+      platformFFI.registerEventHandler(_eventKeyExtractUpdateDmg,
+          _eventKeyExtractUpdateDmg, handleExtractUpdateDmg,
+          replace: true);
+    }
   }
 
   @override
@@ -89,6 +99,10 @@ class UpdateProgressState extends State<UpdateProgress> {
     cancelQueryTimer();
     platformFFI.unregisterEventHandler(
         _eventKeyDownloadNewVersion, _eventKeyDownloadNewVersion);
+    if (isMacOS) {
+      platformFFI.unregisterEventHandler(
+          _eventKeyExtractUpdateDmg, _eventKeyExtractUpdateDmg);
+    }
     super.dispose();
   }
 
@@ -113,10 +127,13 @@ class UpdateProgressState extends State<UpdateProgress> {
     }
   }
 
-  void _onError(String error) {
+  // `isExtractDmg` is true when handling extract-update-dmg event.
+  // It's a rare case that the dmg file is corrupted and cannot be extracted.
+  void _onError(String error, {bool isExtractDmg = false}) {
     cancelQueryTimer();
 
-    debugPrint('Download new version error: $error');
+    debugPrint(
+        '${isExtractDmg ? "Extract" : "Download"} new version error: $error');
     final msgBoxType = 'custom-nocancel-nook-hasclose';
     final msgBoxTitle = 'Error';
     final msgBoxText = 'download-new-version-failed-tip';
@@ -138,7 +155,7 @@ class UpdateProgressState extends State<UpdateProgress> {
 
     final List<Widget> buttons = [
       dialogButton('Download', onPressed: jumplink),
-      dialogButton('Retry', onPressed: retry),
+      if (!isExtractDmg) dialogButton('Retry', onPressed: retry),
       dialogButton('Close', onPressed: close),
     ];
     dialogManager.dismissAll();
@@ -194,19 +211,13 @@ class UpdateProgressState extends State<UpdateProgress> {
           _onError('The download file size is 0.');
         } else {
           setState(() {});
-          msgBox(
-            gFFI.sessionId,
-            'custom-nocancel',
-            '{$appName} Update',
-            '{$appName}-to-update-tip',
-            '',
-            gFFI.dialogManager,
-            onSubmit: () {
-              debugPrint('Downloaded, update to new version now');
-              bind.mainSetCommon(key: 'update-me', value: widget.downloadUrl);
-            },
-            submitTimeout: 5,
-          );
+          if (isMacOS) {
+            bind.mainSetCommon(
+                key: 'extract-update-dmg', value: widget.downloadUrl);
+            _isExtracting.value = true;
+          } else {
+            updateMsgBox();
+          }
         }
       } else {
         setState(() {});
@@ -214,17 +225,38 @@ class UpdateProgressState extends State<UpdateProgress> {
     }
   }
 
-  @override
-  Widget build(BuildContext context) {
-    return onDownloading(context);
+  void updateMsgBox() {
+    msgBox(
+      gFFI.sessionId,
+      'custom-nocancel',
+      '{$appName} Update',
+      '{$appName}-to-update-tip',
+      '',
+      gFFI.dialogManager,
+      onSubmit: () {
+        debugPrint('Downloaded, update to new version now');
+        bind.mainSetCommon(key: 'update-me', value: widget.downloadUrl);
+      },
+      submitTimeout: 5,
+    );
   }
 
-  Widget onDownloading(BuildContext context) {
-    final value = _totalSize == null
+  Future<void> handleExtractUpdateDmg(Map<String, dynamic> evt) async {
+    _isExtracting.value = false;
+    if (evt.containsKey('err') && (evt['err'] as String).isNotEmpty) {
+      _onError(evt['err'] as String, isExtractDmg: true);
+    } else {
+      updateMsgBox();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    getValue() => _totalSize == null
         ? 0.0
         : (_totalSize == 0 ? 1.0 : _downloadedSize / _totalSize!);
     return LinearProgressIndicator(
-      value: value,
+      value: _isExtracting.isTrue ? null : getValue(),
       minHeight: 20,
       borderRadius: BorderRadius.circular(5),
       backgroundColor: Colors.grey[300],