WIP [desktop_multi_window | macOS and Windows]: window creation options, window events, window options

packages/desktop_multi_window/.gitignore

@@ -18,7 +18,7 @@
 # The .vscode folder contains launch configuration and tasks you configure in
 # VS Code which you may wish to be included in version control, so this line
 # is commented out by default.
-#.vscode/
+.vscode/
 
 # Flutter/Dart/Pub related
 # Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
@@ -27,3 +27,8 @@
 .dart_tool/
 .packages
 build/
+
+.editorconfig
+
+# FVM Version Cache
+.fvm/

packages/desktop_multi_window/example/.gitignore

@@ -44,3 +44,5 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+FlutterUIAccessTestCert.pfx

packages/desktop_multi_window/example/01_build_and_run_uiaccess.ps1

@@ -0,0 +1,69 @@
+# At the top of your script
+if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(`
+    [Security.Principal.WindowsBuiltInRole] "Administrator")) {
+    Start-Process powershell -Verb RunAs -ArgumentList "-NoExit", "-ExecutionPolicy Bypass", "-File `"$PSCommandPath`""
+    exit
+}
+
+# Ensure we're in the project directory
+Set-Location -Path "$PSScriptRoot"
+
+# Paths and names
+$flutterAppDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$buildDir = "$flutterAppDir\build\windows\x64\runner\Release"
+$buildExe = "$buildDir\desktop_multi_window_example.exe"
+$certSubject = "CN=FlutterUIAccessTestCert"
+$certName = "FlutterUIAccessTestCert"
+$certPath = "$flutterAppDir\$certName.pfx"
+$secureInstallDir = "C:\Program Files\desktop_multi_window_example App dev"
+$signedExe = "$secureInstallDir\desktop_multi_window_example.exe"
+
+# Build the Flutter app
+flutter build windows --release
+if (-Not (Test-Path $buildExe)) {
+    Write-Error "Build failed or desktop_multi_window_example.exe not found."
+    exit 1
+}
+
+# Create and trust self-signed cert if needed
+if (-Not (Test-Path $certPath)) {
+    Write-Host "Creating self-signed cert..."
+    $cert = New-SelfSignedCertificate -Type CodeSigningCert -Subject $certSubject -CertStoreLocation "Cert:\CurrentUser\My"
+    $pwd = ConvertTo-SecureString -String "password" -Force -AsPlainText
+    Export-PfxCertificate -Cert $cert -FilePath $certPath -Password $pwd
+    Import-PfxCertificate -FilePath $certPath -CertStoreLocation Cert:\CurrentUser\TrustedPublisher -Password $pwd
+    Import-PfxCertificate -FilePath $certPath -CertStoreLocation Cert:\CurrentUser\Root -Password $pwd
+}
+
+# Copy full build folder to secure location
+if (Test-Path $secureInstallDir) {
+    Remove-Item $secureInstallDir -Recurse -Force
+}
+Copy-Item -Path $buildDir -Destination $secureInstallDir -Recurse
+
+# Sign the executable
+$timestampUrl = "http://timestamp.digicert.com"
+& "C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64\signtool.exe" sign `
+    /f $certPath `
+    /p "password" `
+    /fd sha256 `
+    /tr $timestampUrl `
+    /td sha256 `
+    $signedExe
+
+# Sign all DLLs in the secure install directory
+Get-ChildItem -Path $secureInstallDir -Filter *.dll -Recurse | ForEach-Object {
+    & "C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64\signtool.exe" sign `
+        /f $certPath `
+        /p "password" `
+        /fd sha256 `
+        /tr $timestampUrl `
+        /td sha256 `
+        $_.FullName
+}
+
+# Run the signed app
+Start-Process -FilePath "explorer.exe" -ArgumentList "`"$signedExe`""
+
+# Validate manifest
+# mt.exe "-inputresource:build\windows\x64\runner\Release\example.exe;#1" -out:example_out_manifest

packages/desktop_multi_window/example/lib/event_widget.dart

@@ -41,6 +41,8 @@ class MessageItem {
 
 class _EventWidgetState extends State<EventWidget> {
   final messages = <MessageItem>[];
+  int? _selectedWindowId;
+  List<int> _windowIds = [0];
 
   final textInputController = TextEditingController();
 
@@ -49,6 +51,7 @@ class _EventWidgetState extends State<EventWidget> {
   @override
   void initState() {
     super.initState();
+    _updateWindowIds();
     DesktopMultiWindow.setMethodHandler(_handleMethodCallback);
   }
 
@@ -58,8 +61,18 @@ class _EventWidgetState extends State<EventWidget> {
     super.dispose();
   }
 
-  Future<dynamic> _handleMethodCallback(
-      MethodCall call, int fromWindowId) async {
+  Future<void> _updateWindowIds() async {
+    // Get all sub-window IDs
+    final List<int> subWindowIds = await DesktopMultiWindow.getAllSubWindowIds();
+    setState(() {
+      // Combine main window (0) with sub-window IDs
+      _windowIds = [0, ...subWindowIds];
+      // Set default selection if none selected
+      _selectedWindowId ??= _windowIds.first;
+    });
+  }
+
+  Future<dynamic> _handleMethodCallback(MethodCall call, int fromWindowId) async {
     if (call.arguments.toString() == "ping") {
       return "pong";
     }
@@ -82,11 +95,13 @@ class _EventWidgetState extends State<EventWidget> {
       if (text.isEmpty) {
         return;
       }
-      final windowId = int.tryParse(windowInputController.text);
-      textInputController.clear();
-      final result =
-          await DesktopMultiWindow.invokeMethod(windowId!, "onSend", text);
-      debugPrint("onSend result: $result");
+      if (_selectedWindowId != null) {
+        textInputController.clear();
+        final result = await DesktopMultiWindow.invokeMethod(_selectedWindowId!, "onSend", text);
+        debugPrint("onSend result: $result");
+      } else {
+        debugPrint("No window selected");
+      }
     }
 
     return Column(
@@ -95,36 +110,79 @@ class _EventWidgetState extends State<EventWidget> {
           child: ListView.builder(
             itemCount: messages.length,
             reverse: true,
-            itemBuilder: (context, index) =>
-                _MessageItemWidget(item: messages[index]),
+            itemBuilder: (context, index) => _MessageItemWidget(item: messages[index]),
           ),
         ),
-        Row(
-          children: [
-            SizedBox(
-              width: 100,
-              child: TextField(
-                controller: windowInputController,
-                decoration: const InputDecoration(
-                  labelText: 'Window ID',
+        Container(
+          padding: const EdgeInsets.all(16),
+          decoration: BoxDecoration(
+            color: Theme.of(context).colorScheme.surface,
+            boxShadow: [
+              BoxShadow(
+                color: Colors.black.withOpacity(0.1),
+                blurRadius: 4,
+                offset: const Offset(0, -1),
+              ),
+            ],
+          ),
+          child: Row(
+            children: [
+              const Text('To: '),
+              MouseRegion(
+                cursor: SystemMouseCursors.click,
+                child: DropdownButton<int>(
+                  value: _selectedWindowId,
+                  items: _windowIds.map((int id) {
+                    return DropdownMenuItem<int>(
+                      value: id,
+                      child: Text(id == 0 ? 'Main Window' : 'Window $id'),
+                    );
+                  }).toList(),
+                  onTap: () {
+                    // Update window list before showing dropdown
+                    _updateWindowIds();
+                  },
+                  onChanged: (int? newValue) {
+                    setState(() {
+                      _selectedWindowId = newValue;
+                    });
+                  },
                 ),
-                inputFormatters: [FilteringTextInputFormatter.digitsOnly],
               ),
-            ),
-            Expanded(
-              child: TextField(
-                controller: textInputController,
-                decoration: const InputDecoration(
-                  hintText: 'Enter message',
+              const SizedBox(width: 16),
+              Expanded(
+                child: TextField(
+                  controller: textInputController,
+                  decoration: InputDecoration(
+                    hintText: 'Enter message',
+                    filled: true,
+                    fillColor: Theme.of(context).colorScheme.surface,
+                    border: OutlineInputBorder(
+                      borderRadius: BorderRadius.circular(8),
+                      borderSide: BorderSide(
+                        color: Theme.of(context).colorScheme.outline,
+                      ),
+                    ),
+                    contentPadding: const EdgeInsets.symmetric(
+                      horizontal: 16,
+                      vertical: 12,
+                    ),
+                  ),
+                  onSubmitted: (text) => submit(),
                 ),
-                onSubmitted: (text) => submit(),
               ),
-            ),
-            IconButton(
-              icon: const Icon(Icons.send),
-              onPressed: submit,
-            ),
-          ],
+              const SizedBox(width: 8),
+              IconButton(
+                icon: const Icon(Icons.send),
+                onPressed: submit,
+                tooltip: 'Send message',
+                style: IconButton.styleFrom(
+                  backgroundColor: Theme.of(context).colorScheme.primaryContainer,
+                  foregroundColor: Theme.of(context).colorScheme.onPrimaryContainer,
+                ),
+              ),
+            ],
+          ),
         ),
       ],
     );