Auto prompt detection on enter

src/cascadia/TerminalCore/ICoreSettings.idl

@@ -25,6 +25,9 @@ namespace Microsoft.Terminal.Core
 
         Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> TabColor;
         Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> StartingTabColor;
+
+        Boolean AutoMarkPrompts;
+
     };
 
 }

src/cascadia/TerminalCore/Terminal.cpp

@@ -48,7 +48,8 @@ Terminal::Terminal() :
     _selection{ std::nullopt },
     _taskbarState{ 0 },
     _taskbarProgress{ 0 },
-    _trimBlockSelection{ false }
+    _trimBlockSelection{ false },
+    _autoMarkPrompts{ false }
 {
     auto dispatch = std::make_unique<TerminalDispatch>(*this);
     auto engine = std::make_unique<OutputStateMachineEngine>(std::move(dispatch));
@@ -121,6 +122,7 @@ void Terminal::UpdateSettings(ICoreSettings settings)
     _suppressApplicationTitle = settings.SuppressApplicationTitle();
     _startingTitle = settings.StartingTitle();
     _trimBlockSelection = settings.TrimBlockSelection();
+    _autoMarkPrompts = settings.AutoMarkPrompts();
 
     _terminalInput->ForceDisableWin32InputMode(settings.ForceVTInput());
 
@@ -676,6 +678,14 @@ bool Terminal::SendKeyEvent(const WORD vkey,
         return false;
     }
 
+    //if (_autoMarkPrompts && vkey == VK_RETURN && !_inAltBuffer())
+    //{
+    //    DispatchTypes::ScrollMark mark;
+    //    mark.category = DispatchTypes::MarkCategory::Prompt;
+    //    mark.color = til::color(255, 255, 255); // should this be configurable?
+    //    AddMark(mark);
+    //}
+
     KeyEvent keyEv{ keyDown, 1, vkey, sc, ch, states.Value() };
     return _terminalInput->HandleKey(&keyEv);
 }
@@ -730,6 +740,15 @@ bool Terminal::SendCharEvent(const wchar_t ch, const WORD scanCode, const Contro
         vkey = _VirtualKeyFromCharacter(ch);
     }
 
+    
+    if (_autoMarkPrompts && vkey == VK_RETURN && !_inAltBuffer())
+    {
+        DispatchTypes::ScrollMark mark;
+        mark.category = DispatchTypes::MarkCategory::Prompt;
+        mark.color = til::color(255, 255, 255); // should this be configurable?
+        AddMark(mark);
+    }
+
     // Unfortunately, the UI doesn't give us both a character down and a
     // character up event, only a character received event. So fake sending both
     // to the terminal input translator. Unless it's in win32-input-mode, it'll

src/cascadia/TerminalCore/Terminal.hpp

@@ -304,6 +304,7 @@ private:
     bool _suppressApplicationTitle;
     bool _bracketedPasteMode;
     bool _trimBlockSelection;
+    bool _autoMarkPrompts;
 
     size_t _taskbarState;
     size_t _taskbarProgress;

src/cascadia/TerminalSettingsModel/MTSMSettings.h

@@ -76,7 +76,8 @@ Author(s):
     X(Model::BellStyle, BellStyle, "bellStyle", BellStyle::Audible)                                                                                            \
     X(bool, UseAtlasEngine, "experimental.useAtlasEngine", false)                                                                                              \
     X(Windows::Foundation::Collections::IVector<winrt::hstring>, BellSound, "bellSound", nullptr)                                                              \
-    X(bool, Elevate, "elevate", false)
+    X(bool, Elevate, "elevate", false)                                                                                                                         \
+    X(bool, AutoMarkPrompts, "experimental.autoMarkPrompts", false)
 
 // Intentionally omitted Profile settings:
 // * Name

src/cascadia/TerminalSettingsModel/Profile.idl

@@ -83,5 +83,6 @@ namespace Microsoft.Terminal.Settings.Model
         INHERITABLE_PROFILE_SETTING(Windows.Foundation.Collections.IVector<String>, BellSound);
 
         INHERITABLE_PROFILE_SETTING(Boolean, Elevate);
+        INHERITABLE_PROFILE_SETTING(Boolean, AutoMarkPrompts);
     }
 }

src/cascadia/TerminalSettingsModel/TerminalSettings.cpp

@@ -265,6 +265,7 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         }
 
         _Elevate = profile.Elevate();
+        _AutoMarkPrompts = profile.AutoMarkPrompts();
     }
 
     // Method Description:

src/cascadia/TerminalSettingsModel/TerminalSettings.h

@@ -154,6 +154,8 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 
         INHERITABLE_SETTING(Model::TerminalSettings, bool, Elevate, false);
 
+        INHERITABLE_SETTING(Model::TerminalSettings, bool, AutoMarkPrompts, false);
+
     private:
         std::optional<std::array<Microsoft::Terminal::Core::Color, COLOR_TABLE_SIZE>> _ColorTable;
         gsl::span<Microsoft::Terminal::Core::Color> _getColorTableImpl();

src/cascadia/inc/ControlProperties.h

@@ -45,7 +45,8 @@
     X(bool, SuppressApplicationTitle)                                                                             \
     X(bool, ForceVTInput, false)                                                                                  \
     X(winrt::hstring, StartingTitle)                                                                              \
-    X(bool, DetectURLs, true)
+    X(bool, DetectURLs, true)                                                                                     \
+    X(bool, AutoMarkPrompts)
 
 // --------------------------- Control Settings ---------------------------
 //  All of these settings are defined in IControlSettings.