Flush Warp OSC.

src/terminal/adapter/ITermDispatch.hpp

@@ -147,6 +147,8 @@ class Microsoft::Console::VirtualTerminal::ITermDispatch
 
     virtual bool DoVsCodeAction(const std::wstring_view string) = 0;
 
+    virtual bool DoWarpAction(const std::wstring_view string) = 0;
+
     virtual StringHandler DownloadDRCS(const VTInt fontNumber,
                                        const VTParameter startChar,
                                        const DispatchTypes::DrcsEraseControl eraseControl,

src/terminal/adapter/adaptDispatch.cpp

@@ -3756,6 +3756,20 @@ bool AdaptDispatch::DoConEmuAction(const std::wstring_view string)
     return false;
 }
 
+// Method Description:
+// - Performs a Warp Action
+// -
+bool AdaptDispatch::DoWarpAction(const std::wstring_view)
+{
+    const auto isConPty = _api.IsConsolePty();
+    if (isConPty) {
+        // Flush the frame manually, to make sure marks end up on the right
+        // line, like the alt buffer sequence.
+        _renderer.TriggerFlush(false);
+    }
+    return false;
+}
+
 // Method Description:
 // - Performs a iTerm2 action
 // - Ascribes to the ITermDispatch interface

src/terminal/adapter/adaptDispatch.hpp

@@ -150,6 +150,8 @@ namespace Microsoft::Console::VirtualTerminal
 
         bool DoVsCodeAction(const std::wstring_view string) override;
 
+        bool DoWarpAction(const std::wstring_view string) override;
+
         StringHandler DownloadDRCS(const VTInt fontNumber,
                                    const VTParameter startChar,
                                    const DispatchTypes::DrcsEraseControl eraseControl,

src/terminal/adapter/termDispatch.hpp

@@ -140,6 +140,8 @@ class Microsoft::Console::VirtualTerminal::TermDispatch : public Microsoft::Cons
 
     bool DoVsCodeAction(const std::wstring_view /*string*/) override { return false; }
 
+    bool DoWarpAction(const std::wstring_view /*string*/) override { return false; }
+
     StringHandler DownloadDRCS(const VTInt /*fontNumber*/,
                                const VTParameter /*startChar*/,
                                const DispatchTypes::DrcsEraseControl /*eraseControl*/,

src/terminal/parser/OutputStateMachineEngine.cpp

@@ -913,6 +913,11 @@ bool OutputStateMachineEngine::ActionOscDispatch(const size_t parameter, const s
         success = _dispatch->DoVsCodeAction(string);
         break;
     }
+    case OscActionCodes::WarpAction:
+    {
+        success = _dispatch->DoWarpAction(string);
+        break;
+    }
     default:
         // If no functions to call, overall dispatch was a failure.
         success = false;

src/terminal/parser/OutputStateMachineEngine.hpp

@@ -229,6 +229,7 @@ namespace Microsoft::Console::VirtualTerminal
             FinalTermAction = 133,
             VsCodeAction = 633,
             ITerm2Action = 1337,
+            WarpAction = 9278,
         };
 
         bool _GetOscSetColorTable(const std::wstring_view string,