terminal works basically. (#12189)

* terminal works basically.
todo:
- persistent
- sessions restore
- web
- mobile

* missed terminal persistent option change

* android sdk 34 -> 35

* +#![cfg_attr(lt_1_77, feature(c_str_literals))]

* fixing ci

* fix ci

* fix ci for android

* try "Fix Android SDK Platform 35"

* fix android 34

* revert flutter_plugin_android_lifecycle to 2.0.17 which used in rustdesk 1.4.0

* refactor, but break something of desktop terminal (new tab showing loading)

* fix connecting...

flutter/lib/common/widgets/peer_card.dart

@@ -491,6 +491,7 @@ abstract class BasePeerCard extends StatelessWidget {
     bool isViewCamera = false,
     bool isTcpTunneling = false,
     bool isRDP = false,
+    bool isTerminal = false,
   }) {
     return MenuEntryButton<String>(
       childBuilder: (TextStyle? style) => Text(
@@ -506,6 +507,7 @@ abstract class BasePeerCard extends StatelessWidget {
           isViewCamera: isViewCamera,
           isTcpTunneling: isTcpTunneling,
           isRDP: isRDP,
+          isTerminal: isTerminal,
         );
       },
       padding: menuPadding,
@@ -541,6 +543,15 @@ abstract class BasePeerCard extends StatelessWidget {
     );
   }
 
+  @protected
+  MenuEntryBase<String> _terminalAction(BuildContext context) {
+    return _connectCommonAction(
+      context,
+      translate('Terminal'),
+      isTerminal: true,
+    );
+  }
+
   @protected
   MenuEntryBase<String> _tcpTunnelingAction(BuildContext context) {
     return _connectCommonAction(
@@ -892,6 +903,7 @@ class RecentPeerCard extends BasePeerCard {
       _connectAction(context),
       _transferFileAction(context),
       _viewCameraAction(context),
+      _terminalAction(context),
     ];
 
     final List favs = (await bind.mainGetFav()).toList();
@@ -952,6 +964,7 @@ class FavoritePeerCard extends BasePeerCard {
       _connectAction(context),
       _transferFileAction(context),
       _viewCameraAction(context),
+      _terminalAction(context),
     ];
     if (isDesktop && peer.platform != kPeerPlatformAndroid) {
       menuItems.add(_tcpTunnelingAction(context));
@@ -1006,6 +1019,7 @@ class DiscoveredPeerCard extends BasePeerCard {
       _connectAction(context),
       _transferFileAction(context),
       _viewCameraAction(context),
+      _terminalAction(context),
     ];
 
     final List favs = (await bind.mainGetFav()).toList();
@@ -1060,6 +1074,7 @@ class AddressBookPeerCard extends BasePeerCard {
       _connectAction(context),
       _transferFileAction(context),
       _viewCameraAction(context),
+      _terminalAction(context),
     ];
     if (isDesktop && peer.platform != kPeerPlatformAndroid) {
       menuItems.add(_tcpTunnelingAction(context));
@@ -1195,6 +1210,7 @@ class MyGroupPeerCard extends BasePeerCard {
       _connectAction(context),
       _transferFileAction(context),
       _viewCameraAction(context),
+      _terminalAction(context),
     ];
     if (isDesktop && peer.platform != kPeerPlatformAndroid) {
       menuItems.add(_tcpTunnelingAction(context));
@@ -1420,7 +1436,8 @@ void connectInPeerTab(BuildContext context, Peer peer, PeerTabIndex tab,
     {bool isFileTransfer = false,
     bool isViewCamera = false,
     bool isTcpTunneling = false,
-    bool isRDP = false}) async {
+    bool isRDP = false,
+    bool isTerminal = false}) async {
   var password = '';
   bool isSharedPassword = false;
   if (tab == PeerTabIndex.ab) {
@@ -1444,6 +1461,7 @@ void connectInPeerTab(BuildContext context, Peer peer, PeerTabIndex tab,
       password: password,
       isSharedPassword: isSharedPassword,
       isFileTransfer: isFileTransfer,
+      isTerminal: isTerminal,
       isViewCamera: isViewCamera,
       isTcpTunneling: isTcpTunneling,
       isRDP: isRDP);

flutter/lib/common/widgets/setting_widgets.dart

@@ -243,7 +243,8 @@ List<(String, String)> otherDefaultSettings() {
       (
         'Use all my displays for the remote session',
         kKeyUseAllMyDisplaysForTheRemoteSession
-      )
+      ),
+    ('Keep terminal sessions on disconnect', kOptionTerminalPersistent),
   ];
 
   return v;

flutter/lib/common/widgets/toolbar.dart

@@ -154,36 +154,38 @@ List<TTextMenu> toolbarControls(BuildContext context, String id, FFI ffi) {
         onPressed: () => ffi.cursorModel.reset()));
   }
 
+  // https://github.com/rustdesk/rustdesk/pull/9731
+  // Does not work for connection established by "accept".
   connectWithToken(
       {bool isFileTransfer = false,
       bool isViewCamera = false,
-      bool isTcpTunneling = false}) {
+      bool isTcpTunneling = false,
+      bool isTerminal = false}) {
     final connToken = bind.sessionGetConnToken(sessionId: ffi.sessionId);
     connect(context, id,
         isFileTransfer: isFileTransfer,
         isViewCamera: isViewCamera,
+        isTerminal: isTerminal,
         isTcpTunneling: isTcpTunneling,
         connToken: connToken);
   }
 
-  // transferFile
   if (isDefaultConn && isDesktop) {
     v.add(
       TTextMenu(
           child: Text(translate('Transfer file')),
           onPressed: () => connectWithToken(isFileTransfer: true)),
     );
-  }
-  // viewCamera
-  if (isDefaultConn && isDesktop) {
     v.add(
       TTextMenu(
           child: Text(translate('View camera')),
           onPressed: () => connectWithToken(isViewCamera: true)),
     );
-  }
-  // tcpTunneling
-  if (isDefaultConn && isDesktop) {
+    v.add(
+      TTextMenu(
+          child: Text(translate('Terminal')),
+          onPressed: () => connectWithToken(isTerminal: true)),
+    );
     v.add(
       TTextMenu(
           child: Text(translate('TCP tunneling')),