Bug Fix & Improvements

- Fix bug when receiving file: passing a to-be-cleared buffer by referrence
- Improve experience: remember window size & position

lib/home/home_page.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-11 11:05:08
- * @LastEditTime : 2022-10-17 16:57:57
+ * @LastEditTime : 2022-10-19 11:08:50
  * @Description  : 
  */
 
@@ -18,8 +18,9 @@ import 'package:tcp_client/repositories/local_service_repository/local_service_r
 import 'package:tcp_client/repositories/tcp_repository/tcp_repository.dart';
 import 'package:tcp_client/repositories/user_repository/user_repository.dart';
 import 'package:tcp_client/search/search_page.dart';
+import 'package:window_manager/window_manager.dart';
 
-class HomePage extends StatelessWidget {
+class HomePage extends StatelessWidget with WindowListener {
   const HomePage({
     required this.userID,
     required this.localServiceRepository,

lib/main.dart

@@ -1,9 +1,10 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-10 08:04:53
- * @LastEditTime : 2022-10-17 13:03:55
+ * @LastEditTime : 2022-10-19 11:17:44
  * @Description  : 
  */
+import 'package:easy_debounce/easy_debounce.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
@@ -14,16 +15,87 @@ import 'package:tcp_client/initialization/cubit/initialization_cubit.dart';
 import 'package:tcp_client/initialization/cubit/initialization_state.dart';
 import 'package:tcp_client/initialization/initialization_page.dart';
 import 'package:tcp_client/login/login_page.dart';
+import 'package:window_manager/window_manager.dart';
 
-void main() {
+void main() async {
   sqfliteFfiInit();
+
+  //The code below is for desktop platforms only-------------------------
+  WidgetsFlutterBinding.ensureInitialized();
+  
+  // Must add this line.
+  await windowManager.ensureInitialized();
+
+  //Get preferred window size
+  var pref = await SharedPreferences.getInstance();
+  var width = pref.getDouble('windowWidth');
+  var height = pref.getDouble('windowHeight');
+  var posX = pref.getDouble('windowPosX');
+  var posY = pref.getDouble('windowPosY');
+  WindowOptions windowOptions = WindowOptions(
+    size: Size(width ?? 800, height ?? 600),
+    backgroundColor: Colors.transparent,
+    skipTaskbar: false,
+    titleBarStyle: TitleBarStyle.normal
+  );
+  windowManager.waitUntilReadyToShow(windowOptions, () async {
+    await windowManager.show();
+    await windowManager.focus();
+    if(posX != null && posY != null) {
+      await windowManager.setPosition(Offset(posX, posY));
+    }
+  });
+
+  //---------------------------------------------------------------------
+
   runApp(const MyApp());
 }
 
-class MyApp extends StatelessWidget {
+class MyApp extends StatefulWidget {
   const MyApp({super.key});
 
+  @override
+  State<MyApp> createState() => MyAppState();
+}
+
+class MyAppState extends State<MyApp> with WindowListener {
   // This widget is the root of your application.
+  @override
+  void initState() {
+    windowManager.addListener(this);
+    super.initState();
+  }
+
+  @override
+  void onWindowMove() {
+    EasyDebounce.debounce(
+      'WindowMove', 
+      const Duration(milliseconds: 50), 
+      () async {
+        var pref = await SharedPreferences.getInstance();
+        var pos = await windowManager.getPosition();
+        pref.setDouble('windowPosX', pos.dx);
+        pref.setDouble('windowPosY', pos.dy);
+      }
+    );
+    super.onWindowMove();
+  }
+
+  @override
+  void onWindowResize() {
+    EasyDebounce.debounce(
+      'WindowResize', 
+      const Duration(milliseconds: 50), 
+      () async {
+        var pref = await SharedPreferences.getInstance();
+        var size = await windowManager.getSize();
+        pref.setDouble('windowWidth', size.width);
+        pref.setDouble('windowHeight', size.height);
+      }
+    );
+    super.onWindowResize();
+  }
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(

lib/register/register_page.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-12 17:36:38
- * @LastEditTime : 2022-10-14 11:22:38
+ * @LastEditTime : 2022-10-19 11:14:06
  * @Description  : 
  */
 /*

lib/repositories/local_service_repository/local_service_repository.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-11 10:56:02
- * @LastEditTime : 2022-10-18 15:13:27
+ * @LastEditTime : 2022-10-19 10:28:21
  * @Description  : Local Service Repository
  */
 
@@ -239,13 +239,13 @@ class LocalServiceRepository {
         var fileExt = fileName.substring(fileName.lastIndexOf('.'));
         var duplicate = 0;
         //Rename target file
-        await Directory('$documentPath/files').create();
+        await Directory('$documentPath/LChatClient/files').create();
-        await Directory('$documentPath/files/$userID').create();
+        await Directory('$documentPath/LChatClient/files/$userID').create();
-        var targetFilePath = '$documentPath/files/$userID/$fileBaseName$fileExt';
+        var targetFilePath = '$documentPath/LChatClient/files/$userID/$fileBaseName$fileExt';
         var targetFile = File(targetFilePath);
         while(await targetFile.exists()) {
           duplicate += 1;
-          targetFilePath = '$documentPath/files/$userID/$fileBaseName($duplicate)$fileExt';
+          targetFilePath = '$documentPath/LChatClient/files/$userID/$fileBaseName($duplicate)$fileExt';
           targetFile = File(targetFilePath);
         }
         targetFile = await file.copy(targetFilePath);
@@ -271,9 +271,9 @@ class LocalServiceRepository {
   }) async {
     //Write to file library
     var documentPath = (await getApplicationDocumentsDirectory()).path;
-    await Directory('$documentPath/files').create();
+    await Directory('$documentPath/LChatClient/files').create();
-    await Directory('$documentPath/files/.lib').create();
+    await Directory('$documentPath/LChatClient/files/.lib').create();
-    var permanentFilePath = '$documentPath/files/.lib/${tempFile.filemd5}';
+    var permanentFilePath = '$documentPath/LChatClient/files/.lib/${tempFile.filemd5}';
     await tempFile.file.copy(permanentFilePath);
     try{
       await _database.insert(

lib/repositories/tcp_repository/tcp_repository.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-11 09:42:05
- * @LastEditTime : 2022-10-19 00:57:05
+ * @LastEditTime : 2022-10-19 10:41:43
  * @Description  : TCP repository
  */
 
@@ -170,7 +170,7 @@ class TCPRepository {
               _fileCounter += 1;
               _fileCounter %= 10;
               await for(var data in payloadPullStream) {
-                await tempFile.writeAsBytes(data, mode: FileMode.append, flush: true);
+                await tempFile.writeAsBytes(data, mode: FileMode.append);
               }
               _payloadRawStreamController.add(tempFile);
             });
@@ -206,7 +206,7 @@ class TCPRepository {
           if(buffer.length >= payloadLength) {
             //Last few bytes to emit
             //Send the last few bytes to stream
-            _payloadPullStreamController.add(Uint8List.fromList(buffer.sublist(0, payloadLength)));
+            _payloadPullStreamController.add(buffer.sublist(0, payloadLength));
             //Clear buffer
             buffer.removeRange(0, payloadLength);
             //Set payload length to zero
@@ -217,7 +217,7 @@ class TCPRepository {
           else {
             //Part of payload
             //Transmit all to stream
-            _payloadPullStreamController.add(Uint8List.fromList(buffer));
+            _payloadPullStreamController.add([...buffer]);
             //Reduce payload bytes left
             payloadLength -= buffer.length;
             //Clear buffer

linux/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,14 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) screen_retriever_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "ScreenRetrieverPlugin");
+  screen_retriever_plugin_register_with_registrar(screen_retriever_registrar);
+  g_autoptr(FlPluginRegistrar) window_manager_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "WindowManagerPlugin");
+  window_manager_plugin_register_with_registrar(window_manager_registrar);
 }

linux/flutter/generated_plugins.cmake

@@ -3,6 +3,8 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,11 +6,15 @@ import FlutterMacOS
 import Foundation
 
 import path_provider_macos
+import screen_retriever
 import shared_preferences_macos
 import sqflite
+import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  ScreenRetrieverPlugin.register(with: registry.registrar(forPlugin: "ScreenRetrieverPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
   SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin"))
+  WindowManagerPlugin.register(with: registry.registrar(forPlugin: "WindowManagerPlugin"))
 }

pubspec.lock

@@ -319,6 +319,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.1"
+  screen_retriever:
+    dependency: transitive
+    description:
+      name: screen_retriever
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.4"
   scrollable_positioned_list:
     dependency: transitive
     description:
@@ -492,6 +499,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.0"
+  window_manager:
+    dependency: "direct main"
+    description:
+      name: window_manager
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.7"
   xdg_directories:
     dependency: transitive
     description:

pubspec.yaml

@@ -56,6 +56,7 @@ dependencies:
   lpinyin: ^2.0.3
   easy_debounce: ^2.0.2+1
   path: ^1.8.2
+  window_manager: ^0.2.7
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.

windows/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,12 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  ScreenRetrieverPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ScreenRetrieverPlugin"));
+  WindowManagerPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("WindowManagerPlugin"));
 }

windows/flutter/generated_plugins.cmake

@@ -3,6 +3,8 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST