fix drag&drop for web

lib/main.dart

@@ -1,12 +1,33 @@
 import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+
+import 'package:window_manager/window_manager.dart';
 
 import 'src/app.dart';
 import 'src/settings/settings_controller.dart';
 import 'src/settings/settings_service.dart';
 
 void main(List<String> args) async {
+  // Identify if Desktop or Mobile app.
+
+  if (!kIsWeb) {
+    WidgetsFlutterBinding.ensureInitialized();
+
+    await windowManager.ensureInitialized();
+
+    WindowOptions windowOptions = const WindowOptions(
+      title: 'Fast Log Viewer',
+      center: true,
+    );
+
+    windowManager.waitUntilReadyToShow(windowOptions, () async {
+      await windowManager.show();
+      await windowManager.focus();
+    });
+  }
+
   // Set up the SettingsController, which will glue user settings to multiple
   // Flutter Widgets.
   final settingsController = SettingsController(SettingsService());

lib/src/app.dart

@@ -72,11 +72,13 @@ class LogViewerScreen extends StatefulWidget {
 class LogViewerScreenState extends State<LogViewerScreen> {
   List<LogEntry> logs = [];
   List<LogEntry> visibleLogs = [];
-  String search = '';
   LogLevel selectedLogLevel = LogLevel.info;
   bool _isDragging = false;
 
+  TextEditingController controller = TextEditingController(text: '');
+
   late SettingsController settingsController;
+
   @override
   void initState() {
     super.initState();
@@ -93,9 +95,49 @@ class LogViewerScreenState extends State<LogViewerScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Fast Log Viewer'),
         actions: [
+          const SizedBox(width: 8),
+          Expanded(
+            child: TextFormField(
+              controller: controller,
+              decoration: const InputDecoration(
+                labelText: 'Search Logs',
+                border: OutlineInputBorder(),
+              ),
+              onChanged: (value) {
+                setState(() {
+                  _filterLogs();
+                });
+              },
+            ),
+          ),
+          DropdownButton<LogLevel>(
+            underline: Container(height: 0),
+            alignment: Alignment.center,
+            value: selectedLogLevel,
+            onChanged: (LogLevel? newValue) {
+              if (newValue != null) {
+                setState(() {
+                  selectedLogLevel = newValue;
+                  _filterLogs();
+                });
+              }
+            },
+            items: LogLevel.values
+                .map<DropdownMenuItem<LogLevel>>((LogLevel level) {
+              return DropdownMenuItem<LogLevel>(
+                value: level,
+                child: Text(level.name),
+              );
+            }).toList(),
+          ),
+          IconButton(
+            icon: const Icon(Icons.folder_open),
+            onPressed: _openFile,
+          ),
           DropdownButton<ThemeMode>(
+            underline: Container(height: 0),
+            alignment: Alignment.center,
             value: settingsController.themeMode,
             onChanged: (ThemeMode? newValue) async {
               if (newValue != null) {
@@ -120,10 +162,7 @@ class LogViewerScreenState extends State<LogViewerScreen> {
               ),
             ],
           ),
-          IconButton(
+          const SizedBox(width: 8),
-            icon: const Icon(Icons.folder_open),
-            onPressed: _openFile,
-          ),
         ],
       ),
       body: DropTarget(
@@ -139,10 +178,10 @@ class LogViewerScreenState extends State<LogViewerScreen> {
         },
         onDragDone: (details) async {
           if (details.files.isNotEmpty) {
-            File file = File(details.files.first.path);
+            var bytes = await details.files.first.readAsBytes();
-            String fileContent = await file.readAsString();
             setState(() {
-              logs = _parseLogFile(fileContent);
+              logs = _parseLogFile(String.fromCharCodes(bytes));
+              controller.clear();
               _filterLogs();
               _isDragging = false;
             });
@@ -154,46 +193,6 @@ class LogViewerScreenState extends State<LogViewerScreen> {
               : Theme.of(context).scaffoldBackgroundColor,
           child: Column(
             children: [
-              Padding(
-                padding: const EdgeInsets.all(8.0),
-                child: Row(
-                  children: [
-                    Expanded(
-                      child: TextField(
-                        decoration: const InputDecoration(
-                          labelText: 'Search Logs',
-                          border: OutlineInputBorder(),
-                        ),
-                        onChanged: (value) {
-                          setState(() {
-                            search = value;
-                            _filterLogs();
-                          });
-                        },
-                      ),
-                    ),
-                    const SizedBox(width: 8.0),
-                    DropdownButton<LogLevel>(
-                      value: selectedLogLevel,
-                      onChanged: (LogLevel? newValue) {
-                        if (newValue != null) {
-                          setState(() {
-                            selectedLogLevel = newValue;
-                            _filterLogs();
-                          });
-                        }
-                      },
-                      items: LogLevel.values
-                          .map<DropdownMenuItem<LogLevel>>((LogLevel level) {
-                        return DropdownMenuItem<LogLevel>(
-                          value: level,
-                          child: Text(level.name),
-                        );
-                      }).toList(),
-                    ),
-                  ],
-                ),
-              ),
               Expanded(
                 child: SelectionArea(
                     child: ListView.builder(
@@ -215,22 +214,28 @@ class LogViewerScreenState extends State<LogViewerScreen> {
   }
 
   Future<void> _openFile() async {
-    FilePickerResult? result = await FilePicker.platform.pickFiles();
+    FilePickerResult? result =
+        await FilePicker.platform.pickFiles(withData: true);
     if (result != null) {
-      File file = File(result.files.single.path!);
+      if (result.files.isNotEmpty) {
-      String fileContent = await file.readAsString();
+        var bytes = result.files.first.bytes;
+        if (bytes != null) {
           setState(() {
-        logs = _parseLogFile(fileContent);
+            logs = _parseLogFile(String.fromCharCodes(bytes));
+            controller.clear();
             _filterLogs();
           });
         }
       }
+    }
+  }
 
   void _filterLogs() {
     setState(() {
       visibleLogs = logs
           .where((log) =>
-              log.level.index >= selectedLogLevel.index && log.contains(search))
+              log.level.index >= selectedLogLevel.index &&
+              log.contains(controller.text))
           .toList();
     });
   }

linux/flutter/generated_plugin_registrant.cc

@@ -7,9 +7,17 @@
 #include "generated_plugin_registrant.h"
 
 #include <desktop_drop/desktop_drop_plugin.h>
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) desktop_drop_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "DesktopDropPlugin");
   desktop_drop_plugin_register_with_registrar(desktop_drop_registrar);
+  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

@@ -4,6 +4,8 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   desktop_drop
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,9 +6,13 @@ import FlutterMacOS
 import Foundation
 
 import desktop_drop
+import screen_retriever
 import shared_preferences_foundation
+import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DesktopDropPlugin.register(with: registry.registrar(forPlugin: "DesktopDropPlugin"))
+  ScreenRetrieverPlugin.register(with: registry.registrar(forPlugin: "ScreenRetrieverPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
+  WindowManagerPlugin.register(with: registry.registrar(forPlugin: "WindowManagerPlugin"))
 }

pubspec.lock

@@ -237,6 +237,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  screen_retriever:
+    dependency: transitive
+    description:
+      name: screen_retriever
+      sha256: "6ee02c8a1158e6dae7ca430da79436e3b1c9563c8cf02f524af997c201ac2b90"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.9"
   shared_preferences:
     dependency: "direct main"
     description:
@@ -378,6 +386,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.5.5"
+  window_manager:
+    dependency: "direct main"
+    description:
+      name: window_manager
+      sha256: ab8b2a7f97543d3db2b506c9d875e637149d48ee0c6a5cb5f5fd6e0dac463792
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.2"
   xdg_directories:
     dependency: transitive
     description:

pubspec.yaml

@@ -17,6 +17,7 @@ dependencies:
   file_picker:
   desktop_drop:
   shared_preferences:
+  window_manager:
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

@@ -7,8 +7,14 @@
 #include "generated_plugin_registrant.h"
 
 #include <desktop_drop/desktop_drop_plugin.h>
+#include <screen_retriever/screen_retriever_plugin.h>
+#include <window_manager/window_manager_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
   DesktopDropPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("DesktopDropPlugin"));
+  ScreenRetrieverPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ScreenRetrieverPlugin"));
+  WindowManagerPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("WindowManagerPlugin"));
 }

windows/flutter/generated_plugins.cmake

@@ -4,6 +4,8 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   desktop_drop
+  screen_retriever
+  window_manager
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST