#1536 - Feature Request - Duplicate tab

src/cascadia/TerminalApp/App.cpp

@@ -506,6 +506,7 @@ namespace winrt::TerminalApp::implementation
         // They should all be hooked up here, regardless of whether or not
         //      there's an actual keychord for them.
         bindings.NewTab([this]() { _OpenNewTab(std::nullopt); });
+        bindings.DuplicateTab([this]() { _DuplicateTabViewItem(); });
         bindings.CloseTab([this]() { _CloseFocusedTab(); });
         bindings.NewTabWithProfile([this](const auto index) { _OpenNewTab({ index }); });
         bindings.ScrollUp([this]() { _Scroll(-1); });
@@ -1165,6 +1166,20 @@ namespace winrt::TerminalApp::implementation
         }
     }
 
+    // Method Description:
+    // - Duplicates the current focused tab
+    void App::_DuplicateTabViewItem()
+    {
+        int focusedTabIndex = _GetFocusedTabIndex();
+        auto _tab = _tabs.at(focusedTabIndex);
+
+        auto profileGuid = _tab->GetFocusedProfile();
+        auto settings = _settings->MakeSettings(profileGuid);
+
+        _CreateNewTabFromSettings(profileGuid.value(), settings);
+
+    }
+
     // Method Description:
     // - Removes the tab (both TerminalControl and XAML)
     // Arguments:

src/cascadia/TerminalApp/App.h

@@ -103,6 +103,7 @@ namespace winrt::TerminalApp::implementation
         void _CreateNewTabFromSettings(GUID profileGuid, winrt::Microsoft::Terminal::Settings::TerminalSettings settings);
 
         void _OpenNewTab(std::optional<int> profileIndex);
+        void _DuplicateTabViewItem();
         void _CloseFocusedTab();
         void _SelectNextTab(const bool bMoveRight);
         void _SelectTab(const int tabIndex);

src/cascadia/TerminalApp/AppKeyBindings.cpp

@@ -58,6 +58,9 @@ namespace winrt::TerminalApp::implementation
         case ShortcutAction::NewTab:
             _NewTabHandlers();
             return true;
+        case ShortcutAction::DuplicateTab:
+            _DuplicateTabHandlers();
+            return true;
         case ShortcutAction::OpenSettings:
             _OpenSettingsHandlers();
             return true;
@@ -218,14 +221,15 @@ namespace winrt::TerminalApp::implementation
     DEFINE_EVENT(AppKeyBindings, CopyText,          _CopyTextHandlers,          TerminalApp::CopyTextEventArgs);
     DEFINE_EVENT(AppKeyBindings, PasteText,         _PasteTextHandlers,         TerminalApp::PasteTextEventArgs);
     DEFINE_EVENT(AppKeyBindings, NewTab,            _NewTabHandlers,            TerminalApp::NewTabEventArgs);
+    DEFINE_EVENT(AppKeyBindings, DuplicateTab,      _DuplicateTabHandlers,      TerminalApp::DuplicateTabEventArgs);
     DEFINE_EVENT(AppKeyBindings, NewTabWithProfile, _NewTabWithProfileHandlers, TerminalApp::NewTabWithProfileEventArgs);
     DEFINE_EVENT(AppKeyBindings, NewWindow,         _NewWindowHandlers,         TerminalApp::NewWindowEventArgs);
     DEFINE_EVENT(AppKeyBindings, CloseWindow,       _CloseWindowHandlers,       TerminalApp::CloseWindowEventArgs);
     DEFINE_EVENT(AppKeyBindings, CloseTab,          _CloseTabHandlers,          TerminalApp::CloseTabEventArgs);
     DEFINE_EVENT(AppKeyBindings, SwitchToTab,       _SwitchToTabHandlers,       TerminalApp::SwitchToTabEventArgs);
     DEFINE_EVENT(AppKeyBindings, NextTab,           _NextTabHandlers,           TerminalApp::NextTabEventArgs);
     DEFINE_EVENT(AppKeyBindings, PrevTab,           _PrevTabHandlers,           TerminalApp::PrevTabEventArgs);
-    DEFINE_EVENT(AppKeyBindings, SplitVertical,     _SplitVerticalHandlers,     TerminalApp::SplitVerticalEventArgs);
+    DEFINE_EVENT(AppKeyBindings, SplitVertical,     _SplitVerticalHandlers,     TerminalApp::SplitVerticalEventArgs);
     DEFINE_EVENT(AppKeyBindings, SplitHorizontal,   _SplitHorizontalHandlers,   TerminalApp::SplitHorizontalEventArgs);
     DEFINE_EVENT(AppKeyBindings, IncreaseFontSize,  _IncreaseFontSizeHandlers,  TerminalApp::IncreaseFontSizeEventArgs);
     DEFINE_EVENT(AppKeyBindings, DecreaseFontSize,  _DecreaseFontSizeHandlers,  TerminalApp::DecreaseFontSizeEventArgs);

src/cascadia/TerminalApp/AppKeyBindings.h

@@ -43,6 +43,7 @@ namespace winrt::TerminalApp::implementation
         DECLARE_EVENT(CopyText,          _CopyTextHandlers,          TerminalApp::CopyTextEventArgs);
         DECLARE_EVENT(PasteText,         _PasteTextHandlers,         TerminalApp::PasteTextEventArgs);
         DECLARE_EVENT(NewTab,            _NewTabHandlers,            TerminalApp::NewTabEventArgs);
+        DECLARE_EVENT(DuplicateTab,      _DuplicateTabHandlers,      TerminalApp::DuplicateTabEventArgs);
         DECLARE_EVENT(NewTabWithProfile, _NewTabWithProfileHandlers, TerminalApp::NewTabWithProfileEventArgs);
         DECLARE_EVENT(NewWindow,         _NewWindowHandlers,         TerminalApp::NewWindowEventArgs);
         DECLARE_EVENT(CloseWindow,       _CloseWindowHandlers,       TerminalApp::CloseWindowEventArgs);

src/cascadia/TerminalApp/AppKeyBindings.idl

@@ -9,6 +9,7 @@ namespace TerminalApp
         CopyTextWithoutNewlines,
         PasteText,
         NewTab,
+		DuplicateTab,
         NewTabProfile0,
         NewTabProfile1,
         NewTabProfile2,
@@ -46,6 +47,7 @@ namespace TerminalApp
     delegate void CopyTextEventArgs(Boolean trimWhitespace);
     delegate void PasteTextEventArgs();
     delegate void NewTabEventArgs();
+	delegate void DuplicateTabEventArgs();
     delegate void NewTabWithProfileEventArgs(Int32 profileIndex);
     delegate void NewWindowEventArgs();
     delegate void CloseWindowEventArgs();
@@ -74,6 +76,7 @@ namespace TerminalApp
         event CopyTextEventArgs CopyText;
         event PasteTextEventArgs PasteText;
         event NewTabEventArgs NewTab;
+		event DuplicateTabEventArgs DuplicateTab;
         event NewTabWithProfileEventArgs NewTabWithProfile;
         event NewWindowEventArgs NewWindow;
         event CloseWindowEventArgs CloseWindow;

src/cascadia/TerminalApp/AppKeyBindingsSerialization.cpp

@@ -17,6 +17,7 @@ static constexpr std::string_view CopyTextKey{ "copy" };
 static constexpr std::string_view CopyTextWithoutNewlinesKey{ "copyTextWithoutNewlines" };
 static constexpr std::string_view PasteTextKey{ "paste" };
 static constexpr std::string_view NewTabKey{ "newTab" };
+static constexpr std::string_view DuplicateTabKey{ "duplicateTab" };
 static constexpr std::string_view NewTabWithProfile0Key{ "newTabProfile0" };
 static constexpr std::string_view NewTabWithProfile1Key{ "newTabProfile1" };
 static constexpr std::string_view NewTabWithProfile2Key{ "newTabProfile2" };
@@ -64,6 +65,7 @@ static const std::map<std::string_view, ShortcutAction, std::less<>> commandName
     { CopyTextWithoutNewlinesKey, ShortcutAction::CopyTextWithoutNewlines },
     { PasteTextKey, ShortcutAction::PasteText },
     { NewTabKey, ShortcutAction::NewTab },
+    { DuplicateTabKey, ShortcutAction::DuplicateTab },
     { NewTabWithProfile0Key, ShortcutAction::NewTabProfile0 },
     { NewTabWithProfile1Key, ShortcutAction::NewTabProfile1 },
     { NewTabWithProfile2Key, ShortcutAction::NewTabProfile2 },

src/cascadia/TerminalApp/CascadiaSettings.cpp

@@ -253,6 +253,9 @@ void CascadiaSettings::_CreateDefaultKeybindings()
     keyBindings.SetKeyBinding(ShortcutAction::NewTab,
                               KeyChord{ KeyModifiers::Ctrl,
                                         static_cast<int>('T') });
+    keyBindings.SetKeyBinding(ShortcutAction::DuplicateTab,
+                              KeyChord{ KeyModifiers::Ctrl | KeyModifiers::Shift,
+                                        static_cast<int>('D') });
 
     keyBindings.SetKeyBinding(ShortcutAction::CloseTab,
                               KeyChord{ KeyModifiers::Ctrl,