flutter_desktop: check remote menu, mid commit

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/desktop/widgets/utils.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_hbb/utils/multi_window_manager.dart';
+
+/// Connect to a peer with [id].
+/// If [isFileTransfer], starts a session only for file transfer.
+/// If [isTcpTunneling], starts a session only for tcp tunneling.
+/// If [isRDP], starts a session only for rdp.
+void connect(BuildContext context, String id,
+    {bool isFileTransfer = false,
+    bool isTcpTunneling = false,
+    bool isRDP = false}) async {
+  if (id == '') return;
+  id = id.replaceAll(' ', '');
+  assert(!(isFileTransfer && isTcpTunneling && isRDP),
+      "more than one connect type");
+
+  FocusScopeNode currentFocus = FocusScope.of(context);
+  if (isFileTransfer) {
+    await rustDeskWinManager.newFileTransfer(id);
+  } else if (isTcpTunneling || isRDP) {
+    await rustDeskWinManager.newPortForward(id, isRDP);
+  } else {
+    await rustDeskWinManager.newRemoteDesktop(id);
+  }
+  if (!currentFocus.hasPrimaryFocus) {
+    currentFocus.unfocus();
+  }
+}