PRE-MERGE #20162 Add support for "workspaces" based on window names

This fix addresses issue #19983 where resizePane actions unconditionally
consume keystrokes even when no resize can occur.

The fix follows the same pattern used for moveFocus and swapPane fixes:
- Changed Tab::ResizePane to return bool indicating success
- Changed TerminalPage::_ResizePane to return bool from ResizePane  
- Updated _HandleResizePane to set args.Handled() based on whether
resize succeeded

This allows the keychord to propagate to the terminal when no resize can
occur, matching the behavior of moveFocus and swapPane (#6129).

Closes #19983

---------

Co-authored-by: nmurrell07 <nmurrell07@users.noreply.github.com>
Co-authored-by: Dustin L. Howett <dustin@howett.net>

.github/actions/spelling/expect/expect.txt

@@ -241,6 +241,7 @@ consoletaeftemplates
 consoleuwp
 CONSOLEWINDOWOWNER
 consrv
+consteval
 constexprable
 contentfiles
 conterm
@@ -1104,6 +1105,7 @@ NOSIZE
 NOSNAPSHOT
 NOTHOUSANDS
 NOTICKS
+notif
 NOTIMEOUTIFNOTHUNG
 NOTIMPL
 NOTOPMOST
@@ -1753,6 +1755,7 @@ UPKEY
 upss
 uregex
 URegular
+urxvt
 usebackq
 USECALLBACK
 USECOLOR

doc/cascadia/profiles.schema.json

@@ -60,7 +60,8 @@
             "enum": [
               "audible",
               "window",
-              "taskbar"
+              "taskbar",
+              "notification"
             ]
           }
         },
@@ -70,6 +71,7 @@
             "audible",
             "taskbar",
             "window",
+            "notification",
             "all",
             "none"
           ]
@@ -2654,10 +2656,21 @@
           "type": "string"
         },
         "warning.confirmCloseAllTabs": {
+          "deprecated": true,
+          "description": "[Deprecated] Use \"warning.confirmOnClose\" instead.",
           "default": true,
-          "description": "When set to \"true\" closing a window with multiple tabs open will require confirmation.  When set to \"false\", the confirmation dialog will not appear.",
           "type": "boolean"
         },
+        "warning.confirmOnClose": {
+          "default": "automatic",
+          "description": "Controls when a confirmation dialog appears before closing tabs or windows.",
+          "enum": [
+            "never",
+            "automatic",
+            "always"
+          ],
+          "type": "string"
+        },
         "useTabSwitcher": {
           "description": "[Deprecated] Replaced with the \"tabSwitcherMode\" setting.",
           "default": true,
@@ -2774,6 +2787,11 @@
           "description": "When set to true, VT applications will be allowed to set the contents of the local clipboard using OSC 52 (Manipulate Selection Data).",
           "type": "boolean"
         },
+        "compatibility.allowOSC777": {
+          "default": false,
+          "description": "When set to true, applications can send OSC 777 escape sequences to trigger desktop toast notifications with a custom title and body.",
+          "type": "boolean"
+        },
         "unfocusedAppearance": {
           "$ref": "#/$defs/AppearanceConfig",
           "description": "Sets the appearance of the terminal when it is unfocused.",
@@ -2849,6 +2867,73 @@
           "description": "Sets the sound played when the application emits a BEL. When set to an array, the terminal will pick one of those sounds at random.",
           "$ref": "#/$defs/BellSound"
         },
+        "notifyOnActivity": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "array",
+              "items": {
+                "type": "string",
+                "enum": [
+                  "taskbar",
+                  "audible",
+                  "tab",
+                  "notification"
+                ]
+              }
+            },
+            {
+              "type": "string",
+              "enum": [
+                "taskbar",
+                "audible",
+                "tab",
+                "notification",
+                "all",
+                "none"
+              ]
+            }
+          ],
+          "description": "Controls how you are notified when an inactive tab produces new output."
+        },
+        "notifyOnNextPrompt": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "array",
+              "items": {
+                "type": "string",
+                "enum": [
+                  "taskbar",
+                  "audible",
+                  "tab",
+                  "notification"
+                ]
+              }
+            },
+            {
+              "type": "string",
+              "enum": [
+                "taskbar",
+                "audible",
+                "tab",
+                "notification",
+                "all",
+                "none"
+              ]
+            }
+          ],
+          "description": "Controls how you are notified when a new shell prompt is detected. Requires shell integration."
+        },
+        "autoDetectRunningCommand": {
+          "default": false,
+          "description": "Automatically detect when a command is running and show a progress indicator in the tab and taskbar.",
+          "type": "boolean"
+        },
         "closeOnExit": {
           "default": "automatic",
           "description": "Sets how the profile reacts to termination or failure to launch. Possible values:\n -\"graceful\" (close when exit is typed or the process exits normally)\n -\"always\" (always close)\n -\"automatic\" (behave as \"graceful\" only for processes launched by terminal, behave as \"always\" otherwise)\n -\"never\" (never close).\ntrue and false are accepted as synonyms for \"graceful\" and \"never\" respectively.",

src/cascadia/CascadiaPackage/Package-Pre.appxmanifest

@@ -237,6 +237,7 @@
     <Capability Name="internetClient" />
     <rescap:Capability Name="runFullTrust" />
     <rescap:Capability Name="unvirtualizedResources" />
+    <rescap:Capability Name="appLicensing" />
   </Capabilities>
 
   <Extensions>

src/cascadia/CascadiaPackage/Package.appxmanifest

@@ -237,6 +237,7 @@
     <Capability Name="internetClient" />
     <rescap:Capability Name="runFullTrust" />
     <rescap:Capability Name="unvirtualizedResources" />
+    <rescap:Capability Name="appLicensing" />
   </Capabilities>
 
   <Extensions>

src/cascadia/TerminalApp/AppActionHandlers.cpp

@@ -185,8 +185,7 @@ namespace winrt::TerminalApp::implementation
         {
             if (const auto termControl{ _senderOrActiveControl(sender) })
             {
-                const auto broadcastGroup{ _getBroadcastGroupFromControl(termControl) };
-                _writeInputStringToBroadcastGroup(broadcastGroup, realArgs.Input(), WriteInputStringType::Raw);
+                termControl.SendInput(realArgs.Input());
                 args.Handled(true);
             }
         }
@@ -453,11 +452,8 @@ namespace winrt::TerminalApp::implementation
     void TerminalPage::_HandlePasteText(const IInspectable& /*sender*/,
                                         const ActionEventArgs& args)
     {
-        if (const auto& control{ _GetActiveControl() })
-        {
-            _PasteFromClipboardHandler(control, nullptr);
-            args.Handled(true);
-        }
+        _PasteText();
+        args.Handled(true);
     }
 
     void TerminalPage::_HandleNewTab(const IInspectable& /*sender*/,
@@ -503,8 +499,8 @@ namespace winrt::TerminalApp::implementation
             }
             else
             {
-                _ResizePane(realArgs.ResizeDirection());
-                args.Handled(true);
+                const auto resizeSucceeded = _ResizePane(realArgs.ResizeDirection());
+                args.Handled(resizeSucceeded);
             }
         }
     }
@@ -805,7 +801,7 @@ namespace winrt::TerminalApp::implementation
 
             _RemoveTabs(tabsToRemove);
 
-            actionArgs.Handled(true);
+            actionArgs.Handled(!tabsToRemove.empty());
         }
     }
 
@@ -841,7 +837,7 @@ namespace winrt::TerminalApp::implementation
             // tab row, until you mouse over them. Probably has something to do
             // with tabs not resizing down until there's a mouse exit event.
 
-            actionArgs.Handled(true);
+            actionArgs.Handled(!tabsToRemove.empty());
         }
     }
 
@@ -942,6 +938,27 @@ namespace winrt::TerminalApp::implementation
         co_return;
     }
 
+    // Launch `wt -w <name>` so the monarch can either summon an existing
+    // window with that name or restore a persisted workspace.
+    safe_void_coroutine TerminalPage::_OpenWorkspaceWindow(const winrt::hstring name)
+    {
+        co_await winrt::resume_background();
+
+        const auto exePath{ GetWtExePath() };
+        const auto cmdline = fmt::format(FMT_COMPILE(L"-w {}"), std::wstring_view{ name });
+
+        SHELLEXECUTEINFOW seInfo{ 0 };
+        seInfo.cbSize = sizeof(seInfo);
+        seInfo.fMask = SEE_MASK_NOASYNC;
+        seInfo.lpVerb = L"open";
+        seInfo.lpFile = exePath.c_str();
+        seInfo.lpParameters = cmdline.c_str();
+        seInfo.nShow = SW_SHOWNORMAL;
+        LOG_IF_WIN32_BOOL_FALSE(ShellExecuteExW(&seInfo));
+
+        co_return;
+    }
+
     void TerminalPage::_HandleNewWindow(const IInspectable& /*sender*/,
                                         const ActionEventArgs& actionArgs)
     {
@@ -1637,4 +1654,25 @@ namespace winrt::TerminalApp::implementation
             args.Handled(handled);
         }
     }
+
+    void TerminalPage::_HandleOpenWorkspace(const IInspectable& /*sender*/,
+                                            const ActionEventArgs& args)
+    {
+        // Open (or summon) a named window.  We launch a new `wt -w <name>`
+        // process which the monarch will route to the correct live window or
+        // restore from a persisted workspace.
+        if (args)
+        {
+            if (const auto& realArgs = args.ActionArgs().try_as<OpenWorkspaceArgs>())
+            {
+                const auto name = realArgs.Name();
+                if (!name.empty())
+                {
+                    _OpenWorkspaceWindow(name);
+                }
+                args.Handled(true);
+            }
+        }
+    }
+
 }

src/cascadia/TerminalApp/AppCommandlineArgs.cpp

@@ -1068,6 +1068,15 @@ int AppCommandlineArgs::ParseArgs(winrt::array_view<const winrt::hstring> args)
         return 0;
     }
 
+    // When a toast notification is clicked, Windows may launch a new instance
+    // with "--from-toast" as the argument. This is a no-op sentinel — the
+    // in-process Activated handler on the toast already handled activation.
+    // See DesktopNotification.cpp for more details.
+    if (args.size() == 2 && args[1] == L"--from-toast")
+    {
+        return 0;
+    }
+
     auto commands = ::TerminalApp::AppCommandlineArgs::BuildCommands(args);
 
     for (auto& cmdBlob : commands)

src/cascadia/TerminalApp/BasicPaneEvents.h

@@ -15,6 +15,7 @@ namespace winrt::TerminalApp::implementation
         til::typed_event<IPaneContent> TaskbarProgressChanged;
         til::typed_event<IPaneContent> ReadOnlyChanged;
         til::typed_event<IPaneContent> FocusRequested;
+        til::typed_event<IPaneContent, winrt::TerminalApp::NotificationEventArgs> NotificationRequested;
 
         til::typed_event<winrt::Windows::Foundation::IInspectable, Microsoft::Terminal::Settings::Model::Command> DispatchCommandRequested;
     };

src/cascadia/TerminalApp/CommandPalette.xaml

@@ -231,6 +231,12 @@
                                   Glyph=""
                                   Visibility="{x:Bind Item.(local:TabPaletteItem.TabStatus).BellIndicator, Mode=OneWay}" />
 
+                        <FontIcon Margin="0,0,8,0"
+                                  FontFamily="{ThemeResource SymbolThemeFontFamily}"
+                                  FontSize="8"
+                                  Glyph="&#xF127;"
+                                  Visibility="{x:Bind Item.(local:TabPaletteItem.TabStatus).ActivityIndicator, Mode=OneWay}" />
+
                         <FontIcon Margin="0,0,8,0"
                                   FontFamily="{ThemeResource SymbolThemeFontFamily}"
                                   FontSize="12"

src/cascadia/TerminalApp/DesktopNotification.cpp

@@ -0,0 +1,129 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#include "pch.h"
+#include "DesktopNotification.h"
+
+#include <WtExeUtils.h>
+
+using namespace winrt::Windows::UI::Notifications;
+using namespace winrt::Windows::Data::Xml::Dom;
+
+namespace winrt::TerminalApp::implementation
+{
+    std::atomic<uint64_t> DesktopNotification::_lastNotificationTime{ 0 };
+
+    // Method Description:
+    // - Rate-limits toast notifications so we don't spam the user.
+    // Return Value:
+    // - Returns true if a notification is allowed, false if too recent.
+    bool DesktopNotification::ShouldSendNotification()
+    {
+        const auto now = GetTickCount64();
+        auto last = _lastNotificationTime.load(std::memory_order_relaxed);
+
+        // Subtraction wraps cleanly modulo 2^64, so the delta is correct even
+        // across the (~584 million year) GetTickCount64 rollover.
+        if (now - last < MinNotificationIntervalMs)
+        {
+            return false;
+        }
+
+        // Attempt to update; if another thread beat us, that's fine — we'll skip this one.
+        return _lastNotificationTime.compare_exchange_strong(last, now, std::memory_order_relaxed);
+    }
+
+    // Method Description:
+    // - Sends a toast notification with the given title and message.
+    // - When the user clicks the toast, the `Activated` callback fires
+    //   with the tabIndex that was passed in, so the caller can switch
+    //   to the correct tab and summon the window.
+    // Arguments:
+    // - args: The title, message, and tab index to include in the notification.
+    // - activated: A callback invoked on the background thread when the
+    //              toast is clicked. The uint32_t parameter is the tab index.
+    void DesktopNotification::SendNotification(const DesktopNotificationArgs& args, std::function<void()> activatedFunc)
+    {
+        try
+        {
+            if (!ShouldSendNotification())
+            {
+                return;
+            }
+
+            // Build the toast XML. We use a simple template with a title and body text.
+            //
+            // <toast launch="--from-toast">
+            //   <visual>
+            //     <binding template="ToastGeneric">
+            //       <text>Title</text>
+            //       <text>Message</text>
+            //     </binding>
+            //   </visual>
+            // </toast>
+            auto toastXml = ToastNotificationManager::GetTemplateContent(ToastTemplateType::ToastText02);
+            auto textNodes = toastXml.GetElementsByTagName(L"text");
+
+            // First <text> is the title
+            textNodes.Item(0).InnerText(args.Title);
+            // Second <text> is the body
+            textNodes.Item(1).InnerText(args.Message);
+
+            auto toastElement = toastXml.DocumentElement();
+
+            // When a toast is clicked, Windows launches a new instance of the app
+            // with the "launch" attribute as command-line arguments. We handle
+            // toast activation in-process via the Activated event below, so the
+            // new instance should do nothing. "--from-toast" is recognized by
+            // AppCommandlineArgs::ParseArgs as a no-op sentinel.
+            toastElement.SetAttribute(L"launch", L"--from-toast");
+
+            toastElement.SetAttribute(L"scenario", L"default");
+
+            auto toast = ToastNotification{ toastXml };
+
+            // Set the tag and group to enable notification replacement.
+            // Repeated notifications with the same tag replace the previous one
+            // rather than stacking in the notification center.
+            toast.Tag(args.Tag);
+            toast.Group(L"WindowsTerminal");
+
+            // When the user activates (clicks) the toast, fire the callback.
+            if (activatedFunc)
+            {
+                toast.Activated([activatedFunc = std::move(activatedFunc)](const auto& /*sender*/, const auto& /*eventArgs*/) {
+                    activatedFunc();
+                });
+            }
+
+            // For packaged apps, CreateToastNotifier() uses the package identity automatically.
+            // For unpackaged apps, we must pass the explicit AUMID that was registered
+            // at startup via SetCurrentProcessExplicitAppUserModelID.
+            winrt::Windows::UI::Notifications::ToastNotifier notifier{ nullptr };
+            if (IsPackaged())
+            {
+                notifier = ToastNotificationManager::CreateToastNotifier();
+            }
+            else
+            {
+                // Retrieve the AUMID that was set by WindowEmperor at startup.
+                wil::unique_cotaskmem_string aumid;
+                if (SUCCEEDED(GetCurrentProcessExplicitAppUserModelID(&aumid)))
+                {
+                    notifier = ToastNotificationManager::CreateToastNotifier(aumid.get());
+                }
+            }
+            if (notifier)
+            {
+                notifier.Show(toast);
+            }
+        }
+        catch (...)
+        {
+            // Toast notification is a best-effort feature. If it fails (e.g., notifications
+            // are disabled, or the app is unpackaged without proper AUMID setup), we silently
+            // ignore the error.
+            LOG_CAUGHT_EXCEPTION();
+        }
+    }
+}

src/cascadia/TerminalApp/DesktopNotification.h

@@ -0,0 +1,37 @@
+/*++
+Copyright (c) Microsoft Corporation
+Licensed under the MIT license.
+
+Module Name:
+- DesktopNotification.h
+
+Module Description:
+- Helper for sending Windows desktop toast notifications. Used to surface
+  terminal activity events to the user via the Windows notification center.
+--*/
+
+#pragma once
+#include "pch.h"
+
+namespace winrt::TerminalApp::implementation
+{
+    struct DesktopNotificationArgs
+    {
+        winrt::hstring Title;
+        winrt::hstring Message;
+        winrt::hstring Tag;
+    };
+
+    class DesktopNotification
+    {
+    public:
+        static bool ShouldSendNotification();
+        static void SendNotification(const DesktopNotificationArgs& args, std::function<void()> activatedFunc);
+
+    private:
+        static std::atomic<uint64_t> _lastNotificationTime;
+
+        // Minimum interval between notifications, in milliseconds (GetTickCount64 units).
+        static constexpr uint64_t MinNotificationIntervalMs = 5'000;
+    };
+}

src/cascadia/TerminalApp/IPaneContent.idl

@@ -14,6 +14,15 @@ namespace TerminalApp
     runtimeclass BellEventArgs
     {
         Boolean FlashTaskbar { get; };
+        Boolean SendNotification { get; };
+    };
+
+    runtimeclass NotificationEventArgs
+    {
+        String Title { get; };
+        String Body { get; };
+        Microsoft.Terminal.Control.OutputNotificationStyle Style { get; };
+        Boolean AlwaysNotify { get; };
     };
 
     interface IPaneContent
@@ -24,7 +33,7 @@ namespace TerminalApp
         Windows.Foundation.Size MinimumSize { get; };
 
         String Title { get; };
-        UInt64 TaskbarState { get; };
+        Microsoft.Terminal.Control.TaskbarState TaskbarState { get; };
         UInt64 TaskbarProgress { get; };
         Boolean ReadOnly { get; };
         String Icon { get; };
@@ -46,6 +55,7 @@ namespace TerminalApp
         event Windows.Foundation.TypedEventHandler<IPaneContent, Object> TaskbarProgressChanged;
         event Windows.Foundation.TypedEventHandler<IPaneContent, Object> ReadOnlyChanged;
         event Windows.Foundation.TypedEventHandler<IPaneContent, Object> FocusRequested;
+        event Windows.Foundation.TypedEventHandler<IPaneContent, NotificationEventArgs> NotificationRequested;
     };
 
 

src/cascadia/TerminalApp/MarkdownPaneContent.h

@@ -33,7 +33,7 @@ namespace winrt::TerminalApp::implementation
         winrt::Microsoft::Terminal::Settings::Model::INewContentArgs GetNewTerminalArgs(BuildStartupKind kind) const;
 
         winrt::hstring Title() { return _filePath; }
-        uint64_t TaskbarState() { return 0; }
+        winrt::Microsoft::Terminal::Control::TaskbarState TaskbarState() { return winrt::Microsoft::Terminal::Control::TaskbarState::Clear; }
         uint64_t TaskbarProgress() { return 0; }
         bool ReadOnly() { return false; }
         winrt::hstring Icon() const;

src/cascadia/TerminalApp/Pane.cpp

@@ -31,10 +31,14 @@ Pane::Pane(IPaneContent content, const bool lastFocused) :
     _lastActive{ lastFocused }
 {
     _setPaneContent(std::move(content));
-    _root.Children().Append(_borderFirst);
+    _CreatePaneHeader();
 
     const auto& control{ _content.GetRoot() };
-    _borderFirst.Child(control);
+
+    // Set up leaf layout: header in _root row 0, content in _borderFirst row 1.
+    // The TermControl stays as the direct child of _borderFirst (no Grid wrapper)
+    // so the SwapChainPanel renders correctly.
+    _SetupLeafLayout(control);
 
     // Register an event with the control to have it inform us when it gains focus.
     if (control)
@@ -1228,6 +1232,12 @@ void Pane::UpdateVisuals()
     const auto& brush{ _ComputeBorderColor() };
     _borderFirst.BorderBrush(brush);
     _borderSecond.BorderBrush(brush);
+
+    // Update pane header color to match focus state
+    if (_paneHeaderBorder && _paneHeaderBorder.Visibility() == winrt::Windows::UI::Xaml::Visibility::Visible)
+    {
+        _paneHeaderBorder.Background(brush);
+    }
 }
 
 // Method Description:
@@ -1450,9 +1460,9 @@ void Pane::_CloseChild(const bool closeFirst)
         _root.RowDefinitions().Clear();
 
         // Reattach the TermControl to our grid.
-        _root.Children().Append(_borderFirst);
+        _CreatePaneHeader();
         const auto& control{ _content.GetRoot() };
-        _borderFirst.Child(control);
+        _SetupLeafLayout(control);
 
         // Make sure to set our _splitState before focusing the control. If you
         // fail to do this, when the tab handles the GotFocus event and asks us
@@ -1755,7 +1765,92 @@ void Pane::_setPaneContent(IPaneContent content)
 }
 
 // Method Description:
-// - Sets up row/column definitions for this pane. There are three total
+// - Creates the pane header UI elements (title bar shown above the content).
+//   The header is initially collapsed and only shown via ShowPaneHeaders().
+void Pane::_CreatePaneHeader()
+{
+    namespace WUX = winrt::Windows::UI::Xaml;
+
+    _paneHeaderText = Controls::TextBlock{};
+    _paneHeaderText.FontSize(12);
+    _paneHeaderText.Padding({ 8, 2, 8, 2 });
+    _paneHeaderText.IsTextSelectionEnabled(false);
+    _paneHeaderText.TextTrimming(WUX::TextTrimming::CharacterEllipsis);
+    if (_content)
+    {
+        _paneHeaderText.Text(_content.Title());
+        _titleChangedRevoker = _content.TitleChanged(winrt::auto_revoke, [this](auto&&, auto&&) {
+            _paneHeaderBorder.Dispatcher().RunAsync(
+                winrt::Windows::UI::Core::CoreDispatcherPriority::Normal,
+                [this]() {
+                    if (_content && _paneHeaderText)
+                    {
+                        _paneHeaderText.Text(_content.Title());
+                    }
+                });
+        });
+    }
+
+    _paneHeaderBorder = Controls::Border{};
+    _paneHeaderBorder.Padding({ 0, 0, 0, 0 });
+    _paneHeaderBorder.Child(_paneHeaderText);
+    _paneHeaderBorder.Visibility(WUX::Visibility::Collapsed);
+}
+
+// Method Description:
+// - Sets up the leaf pane layout in _root: a header row (auto-sized) and a
+//   content row (star-sized). The TermControl stays as the direct child of
+//   _borderFirst so the SwapChainPanel renders correctly.
+void Pane::_SetupLeafLayout(const winrt::Windows::UI::Xaml::UIElement& control)
+{
+    auto headerRow = Controls::RowDefinition{};
+    headerRow.Height(GridLengthHelper::Auto());
+    auto contentRow = Controls::RowDefinition{};
+    contentRow.Height(GridLengthHelper::FromValueAndType(1, GridUnitType::Star));
+    _root.RowDefinitions().Append(headerRow);
+    _root.RowDefinitions().Append(contentRow);
+
+    Controls::Grid::SetRow(_paneHeaderBorder, 0);
+    Controls::Grid::SetRow(_borderFirst, 1);
+
+    _root.Children().Append(_paneHeaderBorder);
+    _root.Children().Append(_borderFirst);
+
+    if (control)
+    {
+        _borderFirst.Child(control);
+    }
+}
+
+// Method Description:
+// - Show or hide the pane header title bar on all leaf panes in the tree.
+//   Called by Tab when the number of panes changes.
+void Pane::ShowPaneHeaders(bool show)
+{
+    if (_IsLeaf())
+    {
+        if (_paneHeaderBorder)
+        {
+            namespace WUX = winrt::Windows::UI::Xaml;
+            _paneHeaderBorder.Visibility(show ? WUX::Visibility::Visible : WUX::Visibility::Collapsed);
+
+            if (show)
+            {
+                const auto& brush = _ComputeBorderColor();
+                _paneHeaderBorder.Background(brush);
+                _paneHeaderText.Foreground(winrt::Windows::UI::Xaml::Media::SolidColorBrush(winrt::Windows::UI::Colors::White()));
+            }
+        }
+    }
+    else
+    {
+        _firstChild->ShowPaneHeaders(show);
+        _secondChild->ShowPaneHeaders(show);
+    }
+}
+
+// Method Description:
+// - Sets up row/column definitions for this pane.There are three total
 //   row/cols. The middle one is for the separator. The first and third are for
 //   each of the child panes, and are given a size in pixels, based off the
 //   available space, and the percent of the space they respectively consume,
@@ -2321,6 +2416,10 @@ std::pair<std::shared_ptr<Pane>, std::shared_ptr<Pane>> Pane::_Split(SplitDirect
     _root.RowDefinitions().Clear();
     _CreateRowColDefinitions();
 
+    // Reset Grid.Row on _borderFirst — it may have been set to row 1 in the
+    // leaf layout (header=row0, content=row1).
+    Controls::Grid::SetRow(_borderFirst, 0);
+
     _borderFirst.Child(_firstChild->GetRootElement());
     _borderSecond.Child(_secondChild->GetRootElement());
 
@@ -3044,15 +3143,14 @@ void Pane::BroadcastChar(const winrt::Microsoft::Terminal::Control::TermControl&
 }
 
 void Pane::BroadcastString(const winrt::Microsoft::Terminal::Control::TermControl& sourceControl,
-                           const winrt::hstring& text,
-                           const winrt::Microsoft::Terminal::Control::WriteInputStringType type)
+                           const winrt::hstring& text)
 {
     WalkTree([&](const auto& pane) {
         if (const auto& termControl{ pane->GetTerminalControl() })
         {
             if (termControl != sourceControl && !termControl.ReadOnly())
             {
-                termControl.WriteInputString(text, type);
+                termControl.RawWriteString(text);
             }
         }
     });

src/cascadia/TerminalApp/Pane.h

@@ -150,9 +150,10 @@ public:
     bool ContainsReadOnly() const;
 
     void EnableBroadcast(bool enabled);
+    void ShowPaneHeaders(bool show);
     void BroadcastKey(const winrt::Microsoft::Terminal::Control::TermControl& sourceControl, const WORD vkey, const WORD scanCode, const winrt::Microsoft::Terminal::Core::ControlKeyStates modifiers, const bool keyDown);
     void BroadcastChar(const winrt::Microsoft::Terminal::Control::TermControl& sourceControl, const wchar_t vkey, const WORD scanCode, const winrt::Microsoft::Terminal::Core::ControlKeyStates modifiers);
-    void BroadcastString(const winrt::Microsoft::Terminal::Control::TermControl& sourceControl, const winrt::hstring& text, const winrt::Microsoft::Terminal::Control::WriteInputStringType type);
+    void BroadcastString(const winrt::Microsoft::Terminal::Control::TermControl& sourceControl, const winrt::hstring& text);
 
     void UpdateResources(const PaneResources& resources);
 
@@ -235,6 +236,11 @@ private:
     winrt::Windows::UI::Xaml::Controls::Border _borderFirst{};
     winrt::Windows::UI::Xaml::Controls::Border _borderSecond{};
 
+    // Per-pane title header (visible when there are split panes)
+    winrt::Windows::UI::Xaml::Controls::Border _paneHeaderBorder{ nullptr };
+    winrt::Windows::UI::Xaml::Controls::TextBlock _paneHeaderText{ nullptr };
+    winrt::TerminalApp::IPaneContent::TitleChanged_revoker _titleChangedRevoker;
+
     PaneResources _themeResources;
 
 #pragma region Properties that need to be transferred between child / parent panes upon splitting / closing
@@ -266,6 +272,8 @@ private:
     void _SetupChildCloseHandlers();
     winrt::TerminalApp::IPaneContent _takePaneContent();
     void _setPaneContent(winrt::TerminalApp::IPaneContent content);
+    void _CreatePaneHeader();
+    void _SetupLeafLayout(const winrt::Windows::UI::Xaml::UIElement& control);
     bool _HasChild(const std::shared_ptr<Pane> child);
     winrt::TerminalApp::TerminalPaneContent _getTerminalContent() const;
 

src/cascadia/TerminalApp/Remoting.h

@@ -85,6 +85,7 @@ namespace winrt::TerminalApp::implementation
         WINRT_PROPERTY(TerminalApp::CommandlineArgs, Command, nullptr);
         WINRT_PROPERTY(winrt::hstring, Content);
         WINRT_PROPERTY(Windows::Foundation::IReference<Windows::Foundation::Rect>, InitialBounds);
+        WINRT_PROPERTY(winrt::Microsoft::Terminal::Settings::Model::WindowLayout, PersistedLayout, nullptr);
     };
 }
 

src/cascadia/TerminalApp/Remoting.idl

@@ -51,5 +51,6 @@ namespace TerminalApp
         CommandlineArgs Command { get; };
         String Content { get; };
         Windows.Foundation.IReference<Windows.Foundation.Rect> InitialBounds { get; };
+        Microsoft.Terminal.Settings.Model.WindowLayout PersistedLayout;
     };
 }

src/cascadia/TerminalApp/Resources/en-US/Resources.resw

@@ -496,24 +496,48 @@
     <value>Third-Party notices</value>
     <comment>A hyperlink name for the Terminal's third-party notices</comment>
   </data>
-  <data name="QuitDialog.CloseButtonText" xml:space="preserve">
+  <data name="ConfirmCloseDialog_Cancel" xml:space="preserve">
     <value>Cancel</value>
   </data>
-  <data name="QuitDialog.PrimaryButtonText" xml:space="preserve">
-    <value>Close all</value>
-  </data>
-  <data name="QuitDialog.Title" xml:space="preserve">
+  <data name="ConfirmCloseDialog_CloseAllTitle" xml:space="preserve">
     <value>Do you want to close all windows?</value>
   </data>
-  <data name="CloseAllDialog.CloseButtonText" xml:space="preserve">
-    <value>Cancel</value>
-  </data>
-  <data name="CloseAllDialog.PrimaryButtonText" xml:space="preserve">
+  <data name="ConfirmCloseDialog_CloseAllPrimary" xml:space="preserve">
     <value>Close all</value>
   </data>
-  <data name="CloseAllDialog.Title" xml:space="preserve">
+  <data name="ConfirmCloseDialog_WindowTitle" xml:space="preserve">
     <value>Do you want to close all tabs?</value>
   </data>
+  <data name="ConfirmCloseDialog_WindowPrimary" xml:space="preserve">
+    <value>Close all</value>
+  </data>
+  <data name="ConfirmCloseDialog_TabTitle" xml:space="preserve">
+    <value>Do you want to close this tab?</value>
+  </data>
+  <data name="ConfirmCloseDialog_TabPrimary" xml:space="preserve">
+    <value>Close tab</value>
+  </data>
+  <data name="ConfirmCloseDialog_PaneTitle" xml:space="preserve">
+    <value>Do you want to close this pane?</value>
+  </data>
+  <data name="ConfirmCloseDialog_PanePrimary" xml:space="preserve">
+    <value>Close pane</value>
+  </data>
+  <data name="ConfirmCloseDialog_MultipleTabsTitle" xml:space="preserve">
+    <value>Do you want to close these tabs?</value>
+  </data>
+  <data name="ConfirmCloseDialog_MultipleTabsPrimary" xml:space="preserve">
+    <value>Close tabs</value>
+  </data>
+  <data name="ConfirmCloseDialog_MultiplePanesTitle" xml:space="preserve">
+    <value>Do you want to close these panes?</value>
+  </data>
+  <data name="ConfirmCloseDialog_MultiplePanesPrimary" xml:space="preserve">
+    <value>Close panes</value>
+  </data>
+  <data name="DontAskAgainCheckBox.Content" xml:space="preserve">
+    <value>Don't ask me again</value>
+  </data>
   <data name="CloseReadOnlyDialog.CloseButtonText" xml:space="preserve">
     <value>Cancel</value>
   </data>
@@ -719,6 +743,18 @@
     <value>unnamed window</value>
     <comment>text used to identify when a window hasn't been assigned a name by the user</comment>
   </data>
+  <data name="NameThisWindowMenuItem" xml:space="preserve">
+    <value>Name this window…</value>
+    <comment>Menu item text shown when the current window has no name assigned</comment>
+  </data>
+  <data name="RenameThisWindowMenuItem" xml:space="preserve">
+    <value>Rename this window…</value>
+    <comment>Menu item text shown when the current window already has a name</comment>
+  </data>
+  <data name="WindowListUnnamedEntry" xml:space="preserve">
+    <value>#{0} (unnamed)</value>
+    <comment>{0} is the window ID number. Shown in the workspace flyout for windows that have no name assigned.</comment>
+  </data>
   <data name="WindowRenamer.Subtitle" xml:space="preserve">
     <value>Enter a new name:</value>
   </data>
@@ -745,6 +781,14 @@
     <value>Windows</value>
     <comment>This is displayed as a label for the context menu item that holds the submenu of available windows.</comment>
   </data>
+  <data name="NotificationMessage_TabActivity" xml:space="preserve">
+    <value>Activity in tab "{0}"</value>
+    <comment>{0} is the tab title. Shown as the body of a desktop notification when tab activity is detected.</comment>
+  </data>
+  <data name="NotificationMessage_TabActivityInWindow" xml:space="preserve">
+    <value>Activity in tab "{0}" (window "{1}")</value>
+    <comment>{0} is the tab title, {1} is the window name. Shown as the body of a desktop notification when tab activity is detected and the window has a name.</comment>
+  </data>
   <data name="DropPathTabRun.Text" xml:space="preserve">
     <value>Open a new tab in given starting directory</value>
   </data>
@@ -881,10 +925,10 @@
     <value>If set, the command will be appended to the profile's default command instead of replacing it.</value>
   </data>
   <data name="RestartConnectionText" xml:space="preserve">
-    <value>Restart connection</value>
+    <value>Restart session</value>
   </data>
   <data name="RestartConnectionToolTip" xml:space="preserve">
-    <value>Restart the active pane connection</value>
+    <value>Restart the session in the active pane</value>
   </data>
   <data name="SnippetPaneTitle.Text" xml:space="preserve">
     <value>Snippets</value>
@@ -929,12 +973,4 @@
   <data name="InvalidRegex" xml:space="preserve">
     <value>An invalid regular expression was found.</value>
   </data>
-  <data name="DragFileCaption" xml:space="preserve">
-    <value>Paste path to file</value>
-    <comment>The displayed caption for dragging a file onto a terminal.</comment>
-  </data>
-  <data name="DragTextCaption" xml:space="preserve">
-    <value>Paste text</value>
-    <comment>The displayed caption for dragging text onto a terminal.</comment>
-  </data>
 </root>

src/cascadia/TerminalApp/ScratchpadContent.h

@@ -23,7 +23,7 @@ namespace winrt::TerminalApp::implementation
         winrt::Microsoft::Terminal::Settings::Model::INewContentArgs GetNewTerminalArgs(BuildStartupKind kind) const;
 
         winrt::hstring Title() { return L"Scratchpad"; }
-        uint64_t TaskbarState() { return 0; }
+        winrt::Microsoft::Terminal::Control::TaskbarState TaskbarState() { return winrt::Microsoft::Terminal::Control::TaskbarState::Clear; }
         uint64_t TaskbarProgress() { return 0; }
         bool ReadOnly() { return false; }
         winrt::hstring Icon() const;

src/cascadia/TerminalApp/SettingsPaneContent.h

@@ -23,7 +23,7 @@ namespace winrt::TerminalApp::implementation
         winrt::Microsoft::Terminal::Settings::Model::INewContentArgs GetNewTerminalArgs(const BuildStartupKind kind) const;
 
         winrt::hstring Title() { return RS_(L"SettingsTab"); }
-        uint64_t TaskbarState() { return 0; }
+        winrt::Microsoft::Terminal::Control::TaskbarState TaskbarState() { return winrt::Microsoft::Terminal::Control::TaskbarState::Clear; }
         uint64_t TaskbarProgress() { return 0; }
         bool ReadOnly() { return false; }
         winrt::hstring Icon() const;

src/cascadia/TerminalApp/SnippetsPaneContent.h

@@ -24,7 +24,7 @@ namespace winrt::TerminalApp::implementation
         winrt::Microsoft::Terminal::Settings::Model::INewContentArgs GetNewTerminalArgs(BuildStartupKind kind) const;
 
         winrt::hstring Title() { return RS_(L"SnippetPaneTitle/Text"); }
-        uint64_t TaskbarState() { return 0; }
+        winrt::Microsoft::Terminal::Control::TaskbarState TaskbarState() { return winrt::Microsoft::Terminal::Control::TaskbarState::Clear; }
         uint64_t TaskbarProgress() { return 0; }
         bool ReadOnly() { return false; }
         winrt::hstring Icon() const;

src/cascadia/TerminalApp/Tab.cpp

@@ -35,7 +35,6 @@ namespace winrt::TerminalApp::implementation
         _activePane = nullptr;
 
         _closePaneMenuItem.Visibility(WUX::Visibility::Collapsed);
-        _restartConnectionMenuItem.Visibility(WUX::Visibility::Collapsed);
 
         auto firstId = _nextPaneId;
 
@@ -86,6 +85,7 @@ namespace winrt::TerminalApp::implementation
 
         _MakeTabViewItem();
         _CreateContextMenu();
+        _UpdateMenuItemStates();
 
         _headerControl.TabStatus(_tabStatus);
 
@@ -123,6 +123,12 @@ namespace winrt::TerminalApp::implementation
         _bellIndicatorTimer.Stop();
     }
 
+    void Tab::_ActivityIndicatorTimerTick(const Windows::Foundation::IInspectable& /*sender*/, const Windows::Foundation::IInspectable& /*e*/)
+    {
+        ShowActivityIndicator(false);
+        _activityIndicatorTimer.Stop();
+    }
+
     // Method Description:
     // - Initializes a TabViewItem for this Tab instance.
     // Arguments:
@@ -329,6 +335,10 @@ namespace winrt::TerminalApp::implementation
             {
                 ShowBellIndicator(false);
             }
+            if (_tabStatus.ActivityIndicator())
+            {
+                ShowActivityIndicator(false);
+            }
         }
     }
 
@@ -361,6 +371,10 @@ namespace winrt::TerminalApp::implementation
         // The tabWidthMode may have changed, update the header control accordingly
         _UpdateHeaderControlMaxWidth();
 
+        // Refresh pane header visibility based on the current setting
+        const auto showHeaders = settings.GlobalSettings().ShowPaneHeaders() && _rootPane->GetLeafPaneCount() > 1;
+        _rootPane->ShowPaneHeaders(showHeaders);
+
         // Update the settings on all our panes.
         _rootPane->WalkTree([&](const auto& pane) {
             pane->UpdateSettings(settings);
@@ -459,6 +473,26 @@ namespace winrt::TerminalApp::implementation
         _bellIndicatorTimer.Start();
     }
 
+    void Tab::ShowActivityIndicator(const bool show)
+    {
+        ASSERT_UI_THREAD();
+
+        _tabStatus.ActivityIndicator(show);
+    }
+
+    void Tab::ActivateActivityIndicatorTimer()
+    {
+        ASSERT_UI_THREAD();
+
+        if (!_activityIndicatorTimer)
+        {
+            _activityIndicatorTimer.Interval(std::chrono::milliseconds(2000));
+            _activityIndicatorTimer.Tick({ get_weak(), &Tab::_ActivityIndicatorTimerTick });
+        }
+
+        _activityIndicatorTimer.Start();
+    }
+
     // Method Description:
     // - Gets the title string of the last focused terminal control in our tree.
     //   Returns the empty string if there is no such control.
@@ -646,6 +680,14 @@ namespace winrt::TerminalApp::implementation
         // After split, Close Pane Menu Item should be visible
         _closePaneMenuItem.Visibility(WUX::Visibility::Visible);
 
+        // Show pane headers now that we have multiple panes (if the setting is enabled)
+        try
+        {
+            const auto settings{ winrt::TerminalApp::implementation::AppLogic::CurrentAppSettings() };
+            _rootPane->ShowPaneHeaders(settings.GlobalSettings().ShowPaneHeaders());
+        }
+        CATCH_LOG();
+
         // The active pane has an id if it is a leaf
         if (activePaneId)
         {
@@ -844,14 +886,14 @@ namespace winrt::TerminalApp::implementation
     // Arguments:
     // - direction: The direction to move the separator in.
     // Return Value:
-    // - <none>
-    void Tab::ResizePane(const ResizeDirection& direction)
+    // - whether a pane was resized
+    bool Tab::ResizePane(const ResizeDirection& direction)
     {
         ASSERT_UI_THREAD();
 
         // NOTE: This _must_ be called on the root pane, so that it can propagate
         // throughout the entire tree.
-        _rootPane->ResizePane(direction);
+        return _rootPane->ResizePane(direction);
     }
 
     // Method Description:
@@ -1148,6 +1190,14 @@ namespace winrt::TerminalApp::implementation
                         tab->TabRaiseVisualBell.raise();
                     }
 
+                    // Send a desktop toast notification if requested, but only if
+                    // the pane isn't already in the belled state. This prevents
+                    // sending repeated toasts for repeated BEL characters.
+                    if (bellArgs.SendNotification() && !tab->_tabStatus.BellIndicator())
+                    {
+                        tab->TabToastNotificationRequested.raise(tab->Title(), L"", sender);
+                    }
+
                     // Show the bell indicator in the tab header
                     tab->ShowBellIndicator(true);
 
@@ -1166,6 +1216,55 @@ namespace winrt::TerminalApp::implementation
             events.RestartTerminalRequested = terminal.RestartTerminalRequested(winrt::auto_revoke, { get_weak(), &Tab::_bubbleRestartTerminalRequested });
         }
 
+        events.NotificationRequested = content.NotificationRequested(
+            winrt::auto_revoke,
+            [dispatcher, weakThis](TerminalApp::IPaneContent sender, auto notifArgs) -> safe_void_coroutine {
+                const auto weakThisCopy = weakThis;
+                co_await wil::resume_foreground(dispatcher);
+                if (const auto tab{ weakThisCopy.get() })
+                {
+                    const auto activeContent = tab->GetActiveContent();
+                    const auto isActivePaneContent = activeContent && activeContent == sender;
+
+                    if (!notifArgs.AlwaysNotify() && isActivePaneContent &&
+                        tab->_focusState != WUX::FocusState::Unfocused)
+                    {
+                        co_return;
+                    }
+
+                    const auto style = notifArgs.Style();
+
+                    if (WI_IsFlagSet(style, OutputNotificationStyle::Taskbar))
+                    {
+                        tab->TabRaiseVisualBell.raise();
+                    }
+
+                    if (WI_IsFlagSet(style, winrt::Microsoft::Terminal::Control::OutputNotificationStyle::Audible))
+                    {
+                        if (const auto termContent{ sender.try_as<TerminalApp::TerminalPaneContent>() })
+                        {
+                            termContent.PlayNotificationSound();
+                        }
+                    }
+
+                    if (WI_IsFlagSet(style, winrt::Microsoft::Terminal::Control::OutputNotificationStyle::Tab))
+                    {
+                        tab->ShowActivityIndicator(true);
+
+                        if (tab->_focusState != WUX::FocusState::Unfocused)
+                        {
+                            tab->ActivateActivityIndicatorTimer();
+                        }
+                    }
+
+                    if (WI_IsFlagSet(style, winrt::Microsoft::Terminal::Control::OutputNotificationStyle::Notification))
+                    {
+                        const auto title = notifArgs.Title().empty() ? tab->Title() : notifArgs.Title();
+                        tab->TabToastNotificationRequested.raise(title, notifArgs.Body(), sender);
+                    }
+                }
+            });
+
         if (_tabStatus.IsInputBroadcastActive())
         {
             if (const auto& termContent{ content.try_as<TerminalApp::TerminalPaneContent>() })
@@ -1222,11 +1321,10 @@ namespace winrt::TerminalApp::implementation
         const auto taskbarState = state.State();
         // The progress of the control changed, but not necessarily the progress of the tab.
         // Set the tab's progress ring to the active pane's progress
-        if (taskbarState > 0)
+        if (taskbarState != winrt::Microsoft::Terminal::Control::TaskbarState::Clear)
         {
-            if (taskbarState == 3)
+            if (taskbarState == winrt::Microsoft::Terminal::Control::TaskbarState::Indeterminate)
             {
-                // 3 is the indeterminate state, set the progress ring as such
                 _tabStatus.IsProgressRingIndeterminate(true);
             }
             else
@@ -1254,7 +1352,7 @@ namespace winrt::TerminalApp::implementation
 
     // Method Description:
     // - Set an indicator on the tab if any pane is in a closed connection state.
-    // - Show/hide the Restart Connection context menu entry depending on active pane's state.
+    // - Show/hide the Restart Session context menu entry depending on active pane's state.
     // Arguments:
     // - <none>
     // Return Value:
@@ -1271,13 +1369,6 @@ namespace winrt::TerminalApp::implementation
 
             _tabStatus.IsConnectionClosed(isClosed);
         }
-
-        if (_activePane)
-        {
-            _restartConnectionMenuItem.Visibility(_activePane->IsConnectionClosed() ?
-                                                      WUX::Visibility::Visible :
-                                                      WUX::Visibility::Collapsed);
-        }
     }
 
     void Tab::_RestartActivePaneConnection()
@@ -1324,6 +1415,7 @@ namespace winrt::TerminalApp::implementation
         if (_rootPane->GetLeafPaneCount() == 1)
         {
             _closePaneMenuItem.Visibility(WUX::Visibility::Collapsed);
+            _rootPane->ShowPaneHeaders(false);
         }
 
         _RecalculateAndApplyReadOnly();
@@ -1348,6 +1440,22 @@ namespace winrt::TerminalApp::implementation
                 }
             });
         }
+
+        _UpdateMenuItemStates();
+    }
+
+    void Tab::_UpdateMenuItemStates()
+    {
+        // Terminal-specific menu items
+        const auto content = _activePane ? _activePane->GetContent() : nullptr;
+        const auto isTerm = content && content.try_as<winrt::TerminalApp::TerminalPaneContent>() != nullptr;
+        _duplicateTabMenuItem.IsEnabled(isTerm);
+        _exportTabMenuItem.IsEnabled(isTerm);
+        _findMenuItem.IsEnabled(isTerm);
+        _restartConnectionMenuItem.IsEnabled(isTerm);
+
+        // Snippets Pane can technically be split
+        _splitTabMenuItem.IsEnabled(isTerm || (content && content.try_as<winrt::TerminalApp::SnippetsPaneContent>() != nullptr));
     }
 
     // Method Description:
@@ -1393,6 +1501,10 @@ namespace winrt::TerminalApp::implementation
                 {
                     tab->ShowBellIndicator(false);
                 }
+                if (tab->_tabStatus.ActivityIndicator())
+                {
+                    tab->ShowActivityIndicator(false);
+                }
             }
         });
 
@@ -1652,106 +1764,100 @@ namespace winrt::TerminalApp::implementation
             Automation::AutomationProperties::SetHelpText(renameTabMenuItem, renameTabToolTip);
         }
 
-        Controls::MenuFlyoutItem duplicateTabMenuItem;
         {
             // "Duplicate tab"
             Controls::FontIcon duplicateTabSymbol;
             duplicateTabSymbol.FontFamily(Media::FontFamily{ L"Segoe Fluent Icons, Segoe MDL2 Assets" });
             duplicateTabSymbol.Glyph(L"\xF5ED");
 
-            duplicateTabMenuItem.Click({ get_weak(), &Tab::_duplicateTabClicked });
-            duplicateTabMenuItem.Text(RS_(L"DuplicateTabText"));
-            duplicateTabMenuItem.Icon(duplicateTabSymbol);
+            _duplicateTabMenuItem.Click({ get_weak(), &Tab::_duplicateTabClicked });
+            _duplicateTabMenuItem.Text(RS_(L"DuplicateTabText"));
+            _duplicateTabMenuItem.Icon(duplicateTabSymbol);
 
             const auto duplicateTabToolTip = RS_(L"DuplicateTabToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(duplicateTabMenuItem, box_value(duplicateTabToolTip));
-            Automation::AutomationProperties::SetHelpText(duplicateTabMenuItem, duplicateTabToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_duplicateTabMenuItem, box_value(duplicateTabToolTip));
+            Automation::AutomationProperties::SetHelpText(_duplicateTabMenuItem, duplicateTabToolTip);
         }
 
-        Controls::MenuFlyoutItem splitTabMenuItem;
         {
             // "Split tab"
             Controls::FontIcon splitTabSymbol;
             splitTabSymbol.FontFamily(Media::FontFamily{ L"Segoe Fluent Icons, Segoe MDL2 Assets" });
             splitTabSymbol.Glyph(L"\xF246"); // ViewDashboard
 
-            splitTabMenuItem.Click({ get_weak(), &Tab::_splitTabClicked });
-            splitTabMenuItem.Text(RS_(L"SplitTabText"));
-            splitTabMenuItem.Icon(splitTabSymbol);
+            _splitTabMenuItem.Click({ get_weak(), &Tab::_splitTabClicked });
+            _splitTabMenuItem.Text(RS_(L"SplitTabText"));
+            _splitTabMenuItem.Icon(splitTabSymbol);
 
             const auto splitTabToolTip = RS_(L"SplitTabToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(splitTabMenuItem, box_value(splitTabToolTip));
-            Automation::AutomationProperties::SetHelpText(splitTabMenuItem, splitTabToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_splitTabMenuItem, box_value(splitTabToolTip));
+            Automation::AutomationProperties::SetHelpText(_splitTabMenuItem, splitTabToolTip);
         }
 
-        Controls::MenuFlyoutItem closePaneMenuItem = _closePaneMenuItem;
         {
             // "Close pane"
-            closePaneMenuItem.Click({ get_weak(), &Tab::_closePaneClicked });
-            closePaneMenuItem.Text(RS_(L"ClosePaneText"));
+            _closePaneMenuItem.Click({ get_weak(), &Tab::_closePaneClicked });
+            _closePaneMenuItem.Text(RS_(L"ClosePaneText"));
 
             const auto closePaneToolTip = RS_(L"ClosePaneToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(closePaneMenuItem, box_value(closePaneToolTip));
-            Automation::AutomationProperties::SetHelpText(closePaneMenuItem, closePaneToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_closePaneMenuItem, box_value(closePaneToolTip));
+            Automation::AutomationProperties::SetHelpText(_closePaneMenuItem, closePaneToolTip);
         }
 
-        Controls::MenuFlyoutItem exportTabMenuItem;
         {
             // "Export tab"
             Controls::FontIcon exportTabSymbol;
             exportTabSymbol.FontFamily(Media::FontFamily{ L"Segoe Fluent Icons, Segoe MDL2 Assets" });
             exportTabSymbol.Glyph(L"\xE74E"); // Save
 
-            exportTabMenuItem.Click({ get_weak(), &Tab::_exportTextClicked });
-            exportTabMenuItem.Text(RS_(L"ExportTabText"));
-            exportTabMenuItem.Icon(exportTabSymbol);
+            _exportTabMenuItem.Click({ get_weak(), &Tab::_exportTextClicked });
+            _exportTabMenuItem.Text(RS_(L"ExportTabText"));
+            _exportTabMenuItem.Icon(exportTabSymbol);
 
             const auto exportTabToolTip = RS_(L"ExportTabToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(exportTabMenuItem, box_value(exportTabToolTip));
-            Automation::AutomationProperties::SetHelpText(exportTabMenuItem, exportTabToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_exportTabMenuItem, box_value(exportTabToolTip));
+            Automation::AutomationProperties::SetHelpText(_exportTabMenuItem, exportTabToolTip);
         }
 
-        Controls::MenuFlyoutItem findMenuItem;
         {
             // "Find"
             Controls::FontIcon findSymbol;
             findSymbol.FontFamily(Media::FontFamily{ L"Segoe Fluent Icons, Segoe MDL2 Assets" });
             findSymbol.Glyph(L"\xF78B"); // SearchMedium
 
-            findMenuItem.Click({ get_weak(), &Tab::_findClicked });
-            findMenuItem.Text(RS_(L"FindText"));
-            findMenuItem.Icon(findSymbol);
+            _findMenuItem.Click({ get_weak(), &Tab::_findClicked });
+            _findMenuItem.Text(RS_(L"FindText"));
+            _findMenuItem.Icon(findSymbol);
 
             const auto findToolTip = RS_(L"FindToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(findMenuItem, box_value(findToolTip));
-            Automation::AutomationProperties::SetHelpText(findMenuItem, findToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_findMenuItem, box_value(findToolTip));
+            Automation::AutomationProperties::SetHelpText(_findMenuItem, findToolTip);
         }
 
-        Controls::MenuFlyoutItem restartConnectionMenuItem = _restartConnectionMenuItem;
         {
-            // "Restart connection"
+            // "Restart session"
             Controls::FontIcon restartConnectionSymbol;
             restartConnectionSymbol.FontFamily(Media::FontFamily{ L"Segoe Fluent Icons, Segoe MDL2 Assets" });
             restartConnectionSymbol.Glyph(L"\xE72C");
 
-            restartConnectionMenuItem.Click([weakThis](auto&&, auto&&) {
+            _restartConnectionMenuItem.Click([weakThis](auto&&, auto&&) {
                 if (auto tab{ weakThis.get() })
                 {
                     tab->_RestartActivePaneConnection();
                 }
             });
-            restartConnectionMenuItem.Text(RS_(L"RestartConnectionText"));
-            restartConnectionMenuItem.Icon(restartConnectionSymbol);
+            _restartConnectionMenuItem.Text(RS_(L"RestartConnectionText"));
+            _restartConnectionMenuItem.Icon(restartConnectionSymbol);
 
             const auto restartConnectionToolTip = RS_(L"RestartConnectionToolTip");
 
-            WUX::Controls::ToolTipService::SetToolTip(restartConnectionMenuItem, box_value(restartConnectionToolTip));
-            Automation::AutomationProperties::SetHelpText(restartConnectionMenuItem, restartConnectionToolTip);
+            WUX::Controls::ToolTipService::SetToolTip(_restartConnectionMenuItem, box_value(restartConnectionToolTip));
+            Automation::AutomationProperties::SetHelpText(_restartConnectionMenuItem, restartConnectionToolTip);
         }
 
         // Build the menu
@@ -1759,16 +1865,16 @@ namespace winrt::TerminalApp::implementation
         Controls::MenuFlyoutSeparator menuSeparator;
         contextMenuFlyout.Items().Append(chooseColorMenuItem);
         contextMenuFlyout.Items().Append(renameTabMenuItem);
-        contextMenuFlyout.Items().Append(duplicateTabMenuItem);
-        contextMenuFlyout.Items().Append(splitTabMenuItem);
+        contextMenuFlyout.Items().Append(_duplicateTabMenuItem);
+        contextMenuFlyout.Items().Append(_splitTabMenuItem);
         _AppendMoveMenuItems(contextMenuFlyout);
-        contextMenuFlyout.Items().Append(exportTabMenuItem);
-        contextMenuFlyout.Items().Append(findMenuItem);
-        contextMenuFlyout.Items().Append(restartConnectionMenuItem);
+        contextMenuFlyout.Items().Append(_exportTabMenuItem);
+        contextMenuFlyout.Items().Append(_findMenuItem);
+        contextMenuFlyout.Items().Append(_restartConnectionMenuItem);
         contextMenuFlyout.Items().Append(menuSeparator);
 
         auto closeSubMenu = _AppendCloseMenuItems(contextMenuFlyout);
-        closeSubMenu.Items().Append(closePaneMenuItem);
+        closeSubMenu.Items().Append(_closePaneMenuItem);
 
         // GH#5750 - When the context menu is dismissed with ESC, toss the focus
         // back to our control.
@@ -2174,6 +2280,7 @@ namespace winrt::TerminalApp::implementation
                     // Always clear out old ones, just in case.
                     events.KeySent.revoke();
                     events.CharSent.revoke();
+                    events.StringSent.revoke();
 
                     if (newIsBroadcasting)
                     {
@@ -2214,6 +2321,17 @@ namespace winrt::TerminalApp::implementation
                 }
             }
         });
+
+        events.StringSent = termControl.StringSent(winrt::auto_revoke, [weakThis](auto&& sender, auto&& e) {
+            if (const auto tab{ weakThis.get() })
+            {
+                if (tab->_tabStatus.IsInputBroadcastActive())
+                {
+                    tab->_rootPane->BroadcastString(sender.try_as<TermControl>(),
+                                                    e.Text());
+                }
+            }
+        });
     }
 
     void Tab::ThemeColor(const winrt::Microsoft::Terminal::Settings::Model::ThemeColor& focused,

src/cascadia/TerminalApp/Tab.h

@@ -48,12 +48,15 @@ namespace winrt::TerminalApp::implementation
         void ShowBellIndicator(const bool show);
         void ActivateBellIndicatorTimer();
 
+        void ShowActivityIndicator(const bool show);
+        void ActivateActivityIndicatorTimer();
+
         float CalcSnappedDimension(const bool widthOrHeight, const float dimension) const;
         std::optional<winrt::Microsoft::Terminal::Settings::Model::SplitDirection> PreCalculateCanSplit(winrt::Microsoft::Terminal::Settings::Model::SplitDirection splitType,
                                                                                                         const float splitSize,
                                                                                                         winrt::Windows::Foundation::Size availableSpace) const;
 
-        void ResizePane(const winrt::Microsoft::Terminal::Settings::Model::ResizeDirection& direction);
+        bool ResizePane(const winrt::Microsoft::Terminal::Settings::Model::ResizeDirection& direction);
         bool NavigateFocus(const winrt::Microsoft::Terminal::Settings::Model::FocusDirection& direction);
         bool SwapPane(const winrt::Microsoft::Terminal::Settings::Model::FocusDirection& direction);
         bool FocusPane(const uint32_t id);
@@ -121,6 +124,7 @@ namespace winrt::TerminalApp::implementation
 
         til::typed_event<TerminalApp::Tab, IInspectable> ActivePaneChanged;
         til::event<winrt::delegate<>> TabRaiseVisualBell;
+        til::event<winrt::delegate<winrt::hstring /*title*/, winrt::hstring /*body*/, winrt::TerminalApp::IPaneContent /*content*/>> TabToastNotificationRequested;
         til::typed_event<IInspectable, IInspectable> TaskbarProgressChanged;
 
         // The TabViewIndex is the index this Tab object resides in TerminalPage's _tabs vector.
@@ -140,11 +144,17 @@ namespace winrt::TerminalApp::implementation
         static constexpr double HeaderRenameBoxWidthTitleLength{ std::numeric_limits<double>::infinity() };
 
         winrt::Windows::UI::Xaml::FocusState _focusState{ winrt::Windows::UI::Xaml::FocusState::Unfocused };
-        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _closeOtherTabsMenuItem{};
-        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _closeTabsAfterMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _duplicateTabMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _splitTabMenuItem{};
         winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _moveToNewWindowMenuItem{};
         winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _moveRightMenuItem{};
         winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _moveLeftMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _exportTabMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _findMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _restartConnectionMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _closeOtherTabsMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _closeTabsAfterMenuItem{};
+        winrt::Windows::UI::Xaml::Controls::MenuFlyoutItem _closePaneMenuItem{};
         winrt::TerminalApp::ShortcutActionDispatch _dispatch;
         Microsoft::Terminal::Settings::Model::IActionMapView _actionMap{ nullptr };
         winrt::hstring _keyChord{};
@@ -159,9 +169,6 @@ namespace winrt::TerminalApp::implementation
         std::shared_ptr<Pane> _activePane{ nullptr };
         std::shared_ptr<Pane> _zoomedPane{ nullptr };
 
-        Windows::UI::Xaml::Controls::MenuFlyoutItem _closePaneMenuItem;
-        Windows::UI::Xaml::Controls::MenuFlyoutItem _restartConnectionMenuItem;
-
         winrt::Microsoft::Terminal::Settings::Model::IconStyle _lastIconStyle;
         winrt::hstring _lastIconPath{};
         std::optional<winrt::Windows::UI::Color> _runtimeTabColor{};
@@ -182,10 +189,12 @@ namespace winrt::TerminalApp::implementation
             winrt::TerminalApp::IPaneContent::ConnectionStateChanged_revoker ConnectionStateChanged;
             winrt::TerminalApp::IPaneContent::ReadOnlyChanged_revoker ReadOnlyChanged;
             winrt::TerminalApp::IPaneContent::FocusRequested_revoker FocusRequested;
+            winrt::TerminalApp::IPaneContent::NotificationRequested_revoker NotificationRequested;
 
             // These events literally only apply if the content is a TermControl.
             winrt::Microsoft::Terminal::Control::TermControl::KeySent_revoker KeySent;
             winrt::Microsoft::Terminal::Control::TermControl::CharSent_revoker CharSent;
+            winrt::Microsoft::Terminal::Control::TermControl::StringSent_revoker StringSent;
 
             winrt::TerminalApp::TerminalPaneContent::RestartTerminalRequested_revoker RestartTerminalRequested;
         };
@@ -209,6 +218,9 @@ namespace winrt::TerminalApp::implementation
         SafeDispatcherTimer _bellIndicatorTimer;
         void _BellIndicatorTimerTick(const Windows::Foundation::IInspectable& sender, const Windows::Foundation::IInspectable& e);
 
+        SafeDispatcherTimer _activityIndicatorTimer;
+        void _ActivityIndicatorTimerTick(const Windows::Foundation::IInspectable& sender, const Windows::Foundation::IInspectable& e);
+
         void _UpdateHeaderControlMaxWidth();
 
         void _CreateContextMenu();
@@ -219,6 +231,7 @@ namespace winrt::TerminalApp::implementation
         void _AttachEventHandlersToPane(std::shared_ptr<Pane> pane);
 
         void _UpdateActivePane(std::shared_ptr<Pane> pane);
+        void _UpdateMenuItemStates();
 
         winrt::hstring _GetActiveTitle() const;
 
@@ -229,8 +242,6 @@ namespace winrt::TerminalApp::implementation
         void _UpdateConnectionClosedState();
         void _RestartActivePaneConnection();
 
-        void _DuplicateTab();
-
         winrt::Windows::UI::Xaml::Media::Brush _BackgroundBrush();
 
         void _MakeTabViewItem();

src/cascadia/TerminalApp/TabHeaderControl.xaml

@@ -32,6 +32,12 @@
                   FontSize="12"
                   Glyph=""
                   Visibility="{x:Bind TabStatus.BellIndicator, Mode=OneWay}" />
+        <FontIcon x:Name="HeaderActivityIndicator"
+                  Margin="0,0,8,0"
+                  FontFamily="{ThemeResource SymbolThemeFontFamily}"
+                  FontSize="8"
+                  Glyph="&#xF127;"
+                  Visibility="{x:Bind TabStatus.ActivityIndicator, Mode=OneWay}" />
         <FontIcon x:Name="HeaderZoomIcon"
                   Margin="0,0,8,0"
                   FontFamily="{ThemeResource SymbolThemeFontFamily}"

src/cascadia/TerminalApp/TabManagement.cpp

@@ -17,6 +17,7 @@
 
 #include "TabRowControl.h"
 #include "DebugTapConnection.h"
+#include "DesktopNotification.h"
 #include "..\TerminalSettingsModel\FileUtils.h"
 #include "../TerminalSettingsAppAdapterLib/TerminalSettings.h"
 
@@ -150,6 +151,18 @@ namespace winrt::TerminalApp::implementation
             }
         });
 
+        // When a tab requests a desktop toast notification, send the toast
+        // and handle activation by summoning this window and switching to the tab.
+        newTabImpl->TabToastNotificationRequested([weakThis{ get_weak() }, weakTab{ newTabImpl->get_weak() }](const winrt::hstring& title, const winrt::hstring& body, const winrt::TerminalApp::IPaneContent& content) {
+            if (const auto page{ weakThis.get() })
+            {
+                if (const auto tab{ weakTab.get() })
+                {
+                    page->_SendDesktopNotification(title, body, tab, content);
+                }
+            }
+        });
+
         auto tabViewItem = newTabImpl->TabViewItem();
         _tabView.TabItems().InsertAt(insertPosition, tabViewItem);
 
@@ -394,7 +407,9 @@ namespace winrt::TerminalApp::implementation
     // - Removes the tab (both TerminalControl and XAML) after prompting for approval
     // Arguments:
     // - tab: the tab to remove
-    winrt::Windows::Foundation::IAsyncAction TerminalPage::_HandleCloseTabRequested(winrt::TerminalApp::Tab tab)
+    // - skipConfirmClose: if true, skip the confirmOnClose check. Used when
+    //   an aggregate confirmation has already been shown (i.e. close other tabs)
+    winrt::Windows::Foundation::IAsyncAction TerminalPage::_HandleCloseTabRequested(winrt::TerminalApp::Tab tab, bool skipConfirmClose)
     {
         winrt::com_ptr<TerminalPage> strong;
 
@@ -413,6 +428,24 @@ namespace winrt::TerminalApp::implementation
             }
         }
 
+        // Skip the per-tab confirmOnClose check when the caller has already
+        // shown an aggregate confirmation dialog (e.g. _RemoveTabs).
+        if (!skipConfirmClose)
+        {
+            const auto tabImpl = _GetTabImpl(tab);
+            if (tabImpl && _ShouldWarnOnCloseTab(tabImpl))
+            {
+                const auto weak = get_weak();
+
+                auto warningResult = co_await _ShowConfirmCloseDialog(ConfirmCloseDialogKind::Tab);
+                strong = weak.get();
+                if (!strong || warningResult != ContentDialogResult::Primary)
+                {
+                    co_return;
+                }
+            }
+        }
+
         auto t = winrt::get_self<implementation::Tab>(tab);
         auto actions = t->BuildStartupActions(BuildStartupKind::None);
         _AddPreviouslyClosedPaneOrTab(std::move(actions));
@@ -438,6 +471,21 @@ namespace winrt::TerminalApp::implementation
 
         const auto focusedTabIndex{ _GetFocusedTabIndex() };
 
+        // If this is the last tab in a named window, persist the workspace
+        // layout now—before the tab is shut down—so GetWindowLayout() can
+        // still see its tab data.
+        if (_tabs.Size() == 1)
+        {
+            const auto& windowName = _WindowProperties.WindowName();
+            if (!windowName.empty())
+            {
+                if (const auto layout = GetWindowLayout())
+                {
+                    ApplicationState::SharedInstance().SaveWorkspace(windowName, layout);
+                }
+            }
+        }
+
         // Removing the tab from the collection should destroy its control and disconnect its connection,
         // but it doesn't always do so. The UI tree may still be holding the control and preventing its destruction.
         tab.Shutdown();
@@ -782,6 +830,26 @@ namespace winrt::TerminalApp::implementation
             if (const auto pane{ activeTab->GetActivePane() })
             {
                 const auto weak = get_weak();
+
+                // Check if we should warn before closing a single pane
+                // (only triggers on Always — Automatic doesn't warn for single pane)
+                const auto setting = _settings.GlobalSettings().ConfirmOnClose();
+                if (setting == ConfirmOnClose::Always)
+                {
+                    // If this is the last pane, closing it closes the tab,
+                    // so use the tab dialog text instead.
+                    const auto kind = activeTab->GetLeafPaneCount() == 1 ? ConfirmCloseDialogKind::Tab : ConfirmCloseDialogKind::Pane;
+                    auto warningResult = co_await _ShowConfirmCloseDialog(kind);
+
+                    // Hold a strong reference to `this` for the rest of the
+                    // method; we may be the last holder after `co_await`.
+                    auto strong = weak.get();
+                    if (!strong || warningResult != ContentDialogResult::Primary)
+                    {
+                        co_return;
+                    }
+                }
+
                 if (co_await _PaneConfirmCloseReadOnly(pane))
                 {
                     if (const auto strong = weak.get())
@@ -795,10 +863,37 @@ namespace winrt::TerminalApp::implementation
 
     // Method Description:
     // - Close all panes with the given IDs sequentially.
+    // - Shows a single aggregate confirmation dialog upfront if the confirmOnClose setting warrants it.
     // Arguments:
-    // - weakTab: weak reference to the tab that the pane belongs to.
+    // - weakTab: weak reference to the tab that the panes belong to.
     // - paneIds: collection of the IDs of the panes that are marked for removal.
-    void TerminalPage::_ClosePanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds)
+    safe_void_coroutine TerminalPage::_ClosePanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds)
+    {
+        // Show a single aggregate confirmation for closing multiple panes.
+        if (_settings.GlobalSettings().ConfirmOnClose() != ConfirmOnClose::Never)
+        {
+            const auto weak = get_weak();
+            auto warningResult = co_await _ShowConfirmCloseDialog(ConfirmCloseDialogKind::MultiplePanes);
+
+            // Hold a strong reference to `this` after the co_await; we may
+            // be the last holder if the page was being torn down.
+            auto strong = weak.get();
+            if (!strong || warningResult != ContentDialogResult::Primary)
+            {
+                co_return;
+            }
+        }
+        _CloseRemainingPanes(weakTab, std::move(paneIds));
+    }
+
+    // Method Description:
+    // - Recursively closes panes by ID, chaining each close via the
+    //   ClosedByParent callback. Called after confirmation has already
+    //   been handled by _ClosePanes.
+    // Arguments:
+    // - weakTab: weak reference to the tab that the panes belong to
+    // - paneIds: remaining pane IDs to close
+    void TerminalPage::_CloseRemainingPanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds)
     {
         if (auto strongTab{ weakTab.get() })
         {
@@ -813,10 +908,9 @@ namespace winrt::TerminalApp::implementation
                     pane->ClosedByParent([ids{ std::move(paneIds) }, weakThis{ get_weak() }, weakTab]() {
                         if (auto strongThis{ weakThis.get() })
                         {
-                            strongThis->_ClosePanes(weakTab, std::move(ids));
+                            strongThis->_CloseRemainingPanes(weakTab, std::move(ids));
                         }
                     });
-
                     // Close the pane which will eventually trigger the closed by parent event
                     _HandleClosePaneRequested(pane);
                     break;
@@ -841,18 +935,37 @@ namespace winrt::TerminalApp::implementation
 
     // Method Description:
     // - Closes provided tabs one by one
+    // - Shows a single aggregate confirmation dialog upfront if the confirmOnClose setting warrants it.
     // Arguments:
     // - tabs - tabs to remove
     safe_void_coroutine TerminalPage::_RemoveTabs(const std::vector<winrt::TerminalApp::Tab> tabs)
     {
+        if (tabs.empty())
+        {
+            co_return;
+        }
+
+        // Show a single aggregate confirmation instead of per-tab dialogs.
         const auto weak = get_weak();
+        if (_settings.GlobalSettings().ConfirmOnClose() != ConfirmOnClose::Never)
+        {
+            auto warningResult = co_await _ShowConfirmCloseDialog(ConfirmCloseDialogKind::MultipleTabs);
+
+            // Hold a strong reference to `this` after the co_await so that
+            // the for-loop below can safely dispatch on us.
+            auto strong = weak.get();
+            if (!strong || warningResult != ContentDialogResult::Primary)
+            {
+                co_return;
+            }
+        }
 
         for (auto& tab : tabs)
         {
             winrt::Windows::Foundation::IAsyncAction action{ nullptr };
             if (const auto strong = weak.get())
             {
-                action = _HandleCloseTabRequested(tab);
+                action = _HandleCloseTabRequested(tab, /*skipConfirmClose*/ true);
             }
 
             if (!action)
@@ -1185,4 +1298,132 @@ namespace winrt::TerminalApp::implementation
     {
         return _tabs.Size() > 1;
     }
+
+    // Method Description:
+    // - Attempts to find and focus the given tab in this window.
+    // Arguments:
+    // - tab: The tab to focus.
+    // Return Value:
+    // - true if the tab was found and focused, false otherwise.
+    bool TerminalPage::FocusTab(const winrt::TerminalApp::Tab& tab)
+    {
+        if (const auto tabIndex{ _GetTabIndex(tab) })
+        {
+            _SelectTab(tabIndex.value());
+            return true;
+        }
+        return false;
+    }
+
+    // Method Description:
+    // - Sends a desktop toast notification with the given title and body.
+    //   When the toast is activated (clicked), the window is summoned and
+    //   the originating tab is focused.
+    // Arguments:
+    // - tabTitle: The title to display in the notification.
+    // - body: The body text. If empty, a standard tab-activity message is built.
+    // - tab: The tab to switch to when the toast is activated.
+    void TerminalPage::_SendDesktopNotification(const winrt::hstring& tabTitle, const winrt::hstring& body, const winrt::com_ptr<Tab>& tab, const winrt::TerminalApp::IPaneContent& content)
+    {
+        // Don't send a notification if the window is focused and the requesting
+        // pane is the active pane. The user is already looking at it.
+        if (_activated && tab == _GetFocusedTabImpl())
+        {
+            if (const auto activePane{ tab->GetActivePane() })
+            {
+                if (activePane->GetContent() == content)
+                {
+                    return;
+                }
+            }
+        }
+
+        // Build the notification message.
+        // If a custom body is provided (e.g. from OSC 777), use the title/body directly.
+        // Otherwise, build the standard tab-activity notification message.
+        winrt::hstring notificationTitle;
+        winrt::hstring message;
+        if (!body.empty())
+        {
+            notificationTitle = tabTitle;
+            message = body;
+        }
+        else
+        {
+            // Use the window name if available for context; otherwise just use the tab title.
+            // Use the raw WindowName (not WindowNameForDisplay) so we don't include
+            // the "<unnamed window>" placeholder in the notification body.
+            const auto windowName = _WindowProperties ? _WindowProperties.WindowName() : winrt::hstring{};
+            if (!windowName.empty())
+            {
+                message = RS_fmt(L"NotificationMessage_TabActivityInWindow", std::wstring_view{ tabTitle }, std::wstring_view{ windowName });
+            }
+            else
+            {
+                message = RS_fmt(L"NotificationMessage_TabActivity", std::wstring_view{ tabTitle });
+            }
+            notificationTitle = CascadiaSettings::ApplicationDisplayName();
+        }
+
+        // Use the Tab object's identity hash as a stable toast tag.
+        // This survives tab reordering and cross-window moves.
+        const auto tabHash = std::hash<winrt::Windows::Foundation::IUnknown>{}(*tab);
+#ifdef _WIN64
+        const hstring tabTag{ fmt::format(FMT_COMPILE(L"wt-tab-{:016x}"), tabHash) };
+#else
+        const hstring tabTag{ fmt::format(FMT_COMPILE(L"wt-tab-{:08x}"), tabHash) };
+#endif
+
+        const implementation::DesktopNotificationArgs args{
+            .Title = notificationTitle,
+            .Message = message,
+            .Tag = tabTag
+        };
+
+        implementation::DesktopNotification::SendNotification(args, [weakThis{ get_weak() }, weakTab{ tab->get_weak() }, weakContent{ winrt::make_weak(content) }]() {
+            if (const auto page{ weakThis.get() })
+            {
+                // The toast Activated callback runs on a background thread.
+                // Marshal to the UI thread for tab focus and window summon.
+                page->Dispatcher().RunAsync(winrt::Windows::UI::Core::CoreDispatcherPriority::Normal, [weakThis, weakTab, weakContent]() {
+                    if (const auto p{ weakThis.get() })
+                    {
+                        if (const auto t{ weakTab.get() })
+                        {
+                            // Try to find and focus the tab in this window first.
+                            if (const auto tabIndex{ p->_GetTabIndex(*t) })
+                            {
+                                p->SummonWindowRequested.raise(nullptr, nullptr);
+                                p->_SelectTab(tabIndex.value());
+
+                                // Focus the specific pane that raised the notification.
+                                if (const auto paneContent{ weakContent.get() })
+                                {
+                                    const auto rootPane = t->GetRootPane();
+                                    rootPane->WalkTree([&](const auto& pane) {
+                                        if (pane->GetContent() == paneContent)
+                                        {
+                                            rootPane->FocusPane(pane);
+                                        }
+                                    });
+                                }
+                            }
+                            else
+                            {
+                                // The tab may have moved to another window.
+                                // Raise FocusTabRequested so the emperor can
+                                // search all windows for it.
+                                p->FocusTabRequested.raise(nullptr, *t);
+                            }
+                        }
+                        else
+                        {
+                            // Tab was closed. Just summon this window.
+                            p->SummonWindowRequested.raise(nullptr, nullptr);
+                        }
+                    }
+                });
+            }
+        });
+    }
 }

src/cascadia/TerminalApp/TabRowControl.cpp

@@ -25,6 +25,21 @@ namespace winrt::TerminalApp::implementation
         InitializeComponent();
     }
 
+    void TabRowControl::WorkspaceName(const winrt::hstring& value)
+    {
+        if (_WorkspaceName != value)
+        {
+            _WorkspaceName = value;
+            PropertyChanged.raise(*this, WUX::Data::PropertyChangedEventArgs{ L"WorkspaceName" });
+
+            // Collapse the name text when empty so the button shows only the icon.
+            if (const auto textBlock = WorkspaceNameText())
+            {
+                textBlock.Visibility(value.empty() ? WUX::Visibility::Collapsed : WUX::Visibility::Visible);
+            }
+        }
+    }
+
     // Method Description:
     // - Bound in the Xaml editor to the [+] button.
     // Arguments:

src/cascadia/TerminalApp/TabRowControl.h

@@ -19,6 +19,14 @@ namespace winrt::TerminalApp::implementation
 
         til::property_changed_event PropertyChanged;
         WINRT_OBSERVABLE_PROPERTY(bool, ShowElevationShield, PropertyChanged.raise, false);
+        WINRT_OBSERVABLE_PROPERTY(bool, ShowWindowsButton, PropertyChanged.raise, true);
+
+    public:
+        winrt::hstring WorkspaceName() const noexcept { return _WorkspaceName; }
+        void WorkspaceName(const winrt::hstring& value);
+
+    private:
+        winrt::hstring _WorkspaceName{};
     };
 }
 

src/cascadia/TerminalApp/TabRowControl.idl

@@ -9,5 +9,7 @@ namespace TerminalApp
         TabRowControl();
         Microsoft.UI.Xaml.Controls.TabView TabView { get; };
         Boolean ShowElevationShield;
+        Boolean ShowWindowsButton;
+        String WorkspaceName;
     }
 }

src/cascadia/TerminalApp/TabRowControl.xaml

@@ -35,14 +35,43 @@
                  TabWidthMode="Equal">
 
         <mux:TabView.TabStripHeader>
-            <!--  EA18 is the "Shield" glyph  -->
-            <FontIcon x:Uid="ElevationShield"
-                      Margin="9,4,0,4"
-                      FontFamily="{ThemeResource SymbolThemeFontFamily}"
-                      FontSize="16"
-                      Foreground="{ThemeResource SystemControlForegroundBaseMediumBrush}"
-                      Glyph="&#xEA18;"
-                      Visibility="{x:Bind ShowElevationShield, Mode=OneWay}" />
+            <StackPanel Orientation="Horizontal">
+                <!--  EA18 is the "Shield" glyph  -->
+                <FontIcon x:Uid="ElevationShield"
+                          Margin="9,4,0,4"
+                          FontFamily="{ThemeResource SymbolThemeFontFamily}"
+                          FontSize="16"
+                          Foreground="{ThemeResource SystemControlForegroundBaseMediumBrush}"
+                          Glyph="&#xEA18;"
+                          Visibility="{x:Bind ShowElevationShield, Mode=OneWay}" />
+
+                <!--  Workspace/windows button  -->
+                <Button x:Name="WorkspaceDropdown"
+                        Margin="4,4,0,4"
+                        Padding="8,2,4,2"
+                        VerticalAlignment="Center"
+                        BorderThickness="0"
+                        Background="Transparent"
+                        Visibility="{x:Bind ShowWindowsButton, Mode=OneWay}">
+                    <Button.Content>
+                        <StackPanel Orientation="Horizontal"
+                                    Spacing="4">
+                            <!--  EE40 is the "TaskViewSettings" glyph  -->
+                            <FontIcon FontFamily="{ThemeResource SymbolThemeFontFamily}"
+                                      FontSize="12"
+                                      Glyph="&#xEE40;" />
+                            <TextBlock x:Name="WorkspaceNameText"
+                                       VerticalAlignment="Center"
+                                       FontSize="12"
+                                       Visibility="Collapsed"
+                                       Text="{x:Bind WorkspaceName, Mode=OneWay}" />
+                        </StackPanel>
+                    </Button.Content>
+                    <Button.Flyout>
+                        <MenuFlyout x:Name="WorkspaceFlyout" />
+                    </Button.Flyout>
+                </Button>
+            </StackPanel>
         </mux:TabView.TabStripHeader>
 
         <mux:TabView.TabStripFooter>

src/cascadia/TerminalApp/TaskbarState.cpp

@@ -9,27 +9,28 @@ namespace winrt::TerminalApp::implementation
 {
     // Default to unset, 0%.
     TaskbarState::TaskbarState() :
-        TaskbarState(0, 0) {};
+        TaskbarState(winrt::Microsoft::Terminal::Control::TaskbarState::Clear, 0) {};
 
-    TaskbarState::TaskbarState(const uint64_t dispatchTypesState, const uint64_t progressParam) :
-        _State{ dispatchTypesState },
+    TaskbarState::TaskbarState(const winrt::Microsoft::Terminal::Control::TaskbarState state, const uint64_t progressParam) :
+        _State{ state },
         _Progress{ progressParam } {}
 
     uint64_t TaskbarState::Priority() const
     {
         // This seemingly nonsensical ordering is from
         // https://docs.microsoft.com/en-us/windows/win32/api/shobjidl_core/nf-shobjidl_core-itaskbarlist3-setprogressstate#how-the-taskbar-button-chooses-the-progress-indicator-for-a-group
+        using TbState = winrt::Microsoft::Terminal::Control::TaskbarState;
         switch (_State)
         {
-        case 0: // Clear = 0,
+        case TbState::Clear:
             return 5;
-        case 1: // Set = 1,
+        case TbState::Set:
             return 3;
-        case 2: // Error = 2,
+        case TbState::Error:
             return 1;
-        case 3: // Indeterminate = 3,
+        case TbState::Indeterminate:
             return 4;
-        case 4: // Paused = 4
+        case TbState::Paused:
             return 2;
         }
         // Here, return 6, to definitely be greater than all the other valid values.

src/cascadia/TerminalApp/TaskbarState.h

@@ -16,13 +16,13 @@ namespace winrt::TerminalApp::implementation
     {
     public:
         TaskbarState();
-        TaskbarState(const uint64_t dispatchTypesState, const uint64_t progress);
+        TaskbarState(const winrt::Microsoft::Terminal::Control::TaskbarState state, const uint64_t progress);
 
         static int ComparePriority(const winrt::TerminalApp::TaskbarState& lhs, const winrt::TerminalApp::TaskbarState& rhs);
 
         uint64_t Priority() const;
 
-        WINRT_PROPERTY(uint64_t, State, 0);
+        WINRT_PROPERTY(winrt::Microsoft::Terminal::Control::TaskbarState, State, winrt::Microsoft::Terminal::Control::TaskbarState::Clear);
         WINRT_PROPERTY(uint64_t, Progress, 0);
     };
 }

src/cascadia/TerminalApp/TaskbarState.idl

@@ -6,9 +6,9 @@ namespace TerminalApp
     [default_interface] runtimeclass TaskbarState
     {
         TaskbarState();
-        TaskbarState(UInt64 dispatchTypesState, UInt64 progress);
+        TaskbarState(Microsoft.Terminal.Control.TaskbarState state, UInt64 progress);
 
-        UInt64 State{ get; };
+        Microsoft.Terminal.Control.TaskbarState State{ get; };
         UInt64 Progress{ get; };
         UInt64 Priority { get; };
     }

src/cascadia/TerminalApp/TerminalAppLib.vcxproj

@@ -174,6 +174,7 @@
       <DependentUpon>TerminalPaneContent.idl</DependentUpon>
     </ClInclude>
     <ClInclude Include="Toast.h" />
+    <ClInclude Include="DesktopNotification.h" />
     <ClInclude Include="TerminalSettingsCache.h" />
     <ClInclude Include="SuggestionsControl.h">
       <DependentUpon>SuggestionsControl.xaml</DependentUpon>
@@ -287,6 +288,7 @@
     </ClCompile>
     <ClCompile Include="$(GeneratedFilesDir)module.g.cpp" />
     <ClCompile Include="Toast.cpp" />
+    <ClCompile Include="DesktopNotification.cpp" />
     <ClCompile Include="TerminalSettingsCache.cpp" />
     <ClCompile Include="SuggestionsControl.cpp">
       <DependentUpon>SuggestionsControl.xaml</DependentUpon>

src/cascadia/TerminalApp/TerminalPage.cpp

@@ -25,6 +25,8 @@
 #include "TerminalSettingsCache.h"
 
 #include "LaunchPositionRequest.g.cpp"
+#include "WindowListEntry.g.cpp"
+#include "WindowListRequest.g.cpp"
 #include "RenameWindowRequestedArgs.g.cpp"
 #include "RequestMoveContentArgs.g.cpp"
 #include "TerminalPage.g.cpp"
@@ -37,7 +39,6 @@ using namespace winrt::Microsoft::Terminal::TerminalConnection;
 using namespace winrt::Microsoft::Terminal;
 using namespace winrt::Windows::ApplicationModel::DataTransfer;
 using namespace winrt::Windows::Foundation::Collections;
-using namespace winrt::Windows::Storage::Streams;
 using namespace winrt::Windows::System;
 using namespace winrt::Windows::UI;
 using namespace winrt::Windows::UI::Core;
@@ -335,6 +336,20 @@ namespace winrt::TerminalApp::implementation
 
         auto tabRowImpl = winrt::get_self<implementation::TabRowControl>(_tabRow);
         _newTabButton = tabRowImpl->NewTabButton();
+        _workspaceFlyout = tabRowImpl->WorkspaceFlyout();
+
+        // Set the initial workspace name from the window name.
+        // Use raw WindowName() so unnamed windows show no text.
+        _tabRow.WorkspaceName(_WindowProperties.WindowName());
+
+        // Rebuild the workspace flyout each time it opens so it always
+        // reflects the latest set of persisted workspaces.
+        _workspaceFlyout.Opening([weakThis{ get_weak() }](auto&&, auto&&) {
+            if (auto page{ weakThis.get() })
+            {
+                page->_PopulateWorkspaceFlyout();
+            }
+        });
 
         if (_settings.GlobalSettings().ShowTabsInTitlebar())
         {
@@ -444,6 +459,12 @@ namespace winrt::TerminalApp::implementation
 
         _tabRow.ShowElevationShield(IsRunningElevated() && _settings.GlobalSettings().ShowAdminShield());
 
+        // Apply the ShowWindowsButton theme setting.
+        if (const auto theme = _settings.GlobalSettings().CurrentTheme())
+        {
+            _tabRow.ShowWindowsButton(theme.Window() ? theme.Window().ShowWindowsButton() : true);
+        }
+
         _adjustProcessPriorityThrottled = std::make_shared<ThrottledFunc<>>(
             DispatcherQueue::GetForCurrentThread(),
             til::throttled_func_options{
@@ -885,26 +906,78 @@ namespace winrt::TerminalApp::implementation
     }
 
     // Method Description:
-    // - Displays a dialog to warn the user that they are about to close all open windows.
-    //   Once the user clicks the OK button, shut down the application.
-    //   If cancel is clicked, the dialog will close.
+    // - Displays the unified close confirmation dialog configured for the
+    //   given scenario. Resets the "don't ask me again" checkbox before showing.
+    //   If the user confirms and checked "don't ask me again", sets
+    //   confirmOnClose to Never and writes settings to disk.
     // - Only one dialog can be visible at a time. If another dialog is visible
     //   when this is called, nothing happens. See _ShowDialog for details
-    winrt::Windows::Foundation::IAsyncOperation<ContentDialogResult> TerminalPage::_ShowQuitDialog()
+    winrt::Windows::Foundation::IAsyncOperation<ContentDialogResult> TerminalPage::_ShowConfirmCloseDialog(ConfirmCloseDialogKind kind)
     {
-        return _ShowDialogHelper(L"QuitDialog");
-    }
+        // Load the dialog (triggers x:Load) and configure its strings.
+        const auto dialog = FindName(L"ConfirmCloseDialog").as<ContentDialog>();
 
-    // Method Description:
-    // - Displays a dialog for warnings found while closing the terminal app using
-    //   key binding with multiple tabs opened. Display messages to warn user
-    //   that more than 1 tab is opened, and once the user clicks the OK button, remove
-    //   all the tabs and shut down and app. If cancel is clicked, the dialog will close
-    // - Only one dialog can be visible at a time. If another dialog is visible
-    //   when this is called, nothing happens. See _ShowDialog for details
-    winrt::Windows::Foundation::IAsyncOperation<ContentDialogResult> TerminalPage::_ShowCloseWarningDialog()
-    {
-        return _ShowDialogHelper(L"CloseAllDialog");
+        winrt::hstring title;
+        winrt::hstring primary;
+        switch (kind)
+        {
+        case ConfirmCloseDialogKind::CloseAll:
+            title = RS_(L"ConfirmCloseDialog_CloseAllTitle");
+            primary = RS_(L"ConfirmCloseDialog_CloseAllPrimary");
+            break;
+        case ConfirmCloseDialogKind::Window:
+            title = RS_(L"ConfirmCloseDialog_WindowTitle");
+            primary = RS_(L"ConfirmCloseDialog_WindowPrimary");
+            break;
+        case ConfirmCloseDialogKind::Tab:
+            title = RS_(L"ConfirmCloseDialog_TabTitle");
+            primary = RS_(L"ConfirmCloseDialog_TabPrimary");
+            break;
+        case ConfirmCloseDialogKind::MultiplePanes:
+            title = RS_(L"ConfirmCloseDialog_MultiplePanesTitle");
+            primary = RS_(L"ConfirmCloseDialog_MultiplePanesPrimary");
+            break;
+        case ConfirmCloseDialogKind::MultipleTabs:
+            title = RS_(L"ConfirmCloseDialog_MultipleTabsTitle");
+            primary = RS_(L"ConfirmCloseDialog_MultipleTabsPrimary");
+            break;
+        case ConfirmCloseDialogKind::Pane:
+            title = RS_(L"ConfirmCloseDialog_PaneTitle");
+            primary = RS_(L"ConfirmCloseDialog_PanePrimary");
+            break;
+        }
+        dialog.Title(winrt::box_value(title));
+        dialog.PrimaryButtonText(primary);
+        dialog.CloseButtonText(RS_(L"ConfirmCloseDialog_Cancel"));
+
+        // BODGY: After a ContentDialog is dismissed, FindName() can no longer
+        // resolve children inside it. Use Content() to get the checkbox directly.
+        const auto checkbox = dialog.Content().as<CheckBox>();
+        checkbox.IsChecked(false);
+
+        auto result = ContentDialogResult::None;
+        if (auto presenter{ _dialogPresenter.get() })
+        {
+            const auto weak = get_weak();
+            result = co_await presenter.ShowDialog(dialog);
+
+            // ShowDialog blocks until the dialog is dismissed, so it is
+            // possible for `this` to be torn down while we wait. Re-acquire
+            // a strong reference before touching any of our state.
+            const auto strong = weak.get();
+            if (!strong)
+            {
+                co_return ContentDialogResult::None;
+            }
+
+            if (result == ContentDialogResult::Primary && checkbox.IsChecked().Value())
+            {
+                _settings.GlobalSettings().ConfirmOnClose(ConfirmOnClose::Never);
+                _settings.WriteSettingsToDisk();
+            }
+        }
+
+        co_return result;
     }
 
     // Method Description:
@@ -1965,9 +2038,6 @@ namespace winrt::TerminalApp::implementation
 
         term.OpenHyperlink({ this, &TerminalPage::_OpenHyperlinkHandler });
 
-        term.DragOver({ this, &TerminalPage::_ControlDragOverHandler });
-        term.Drop({ this, &TerminalPage::_ControlDragDropHandler });
-
         // Add an event handler for when the terminal or tab wants to set a
         // progress indicator on the taskbar
         term.SetTaskbarProgress({ get_weak(), &TerminalPage::_SetTaskbarProgressHandler });
@@ -2213,12 +2283,13 @@ namespace winrt::TerminalApp::implementation
     //   signal that we want to close everything.
     safe_void_coroutine TerminalPage::RequestQuit()
     {
-        if (!_displayingCloseDialog)
+        const auto setting = _settings.GlobalSettings().ConfirmOnClose();
+        if (setting != ConfirmOnClose::Never && !_displayingCloseDialog)
         {
             _displayingCloseDialog = true;
 
             const auto weak = get_weak();
-            auto warningResult = co_await _ShowQuitDialog();
+            auto warningResult = co_await _ShowConfirmCloseDialog(ConfirmCloseDialogKind::CloseAll);
             const auto strong = weak.get();
             if (!strong)
             {
@@ -2231,19 +2302,19 @@ namespace winrt::TerminalApp::implementation
             {
                 co_return;
             }
-
-            QuitRequested.raise(nullptr, nullptr);
         }
+
+        QuitRequested.raise(nullptr, nullptr);
     }
 
-    void TerminalPage::PersistState()
+    WindowLayout TerminalPage::GetWindowLayout()
     {
         // This method may be called for a window even if it hasn't had a tab yet or lost all of them.
         // We shouldn't persist such windows.
         const auto tabCount = _tabs.Size();
         if (_startupState != StartupState::Initialized || tabCount == 0)
         {
-            return;
+            return nullptr;
         }
 
         std::vector<ActionAndArgs> actions;
@@ -2258,7 +2329,7 @@ namespace winrt::TerminalApp::implementation
         // Avoid persisting a window with zero tabs, because `BuildStartupActions` happened to return an empty vector.
         if (actions.empty())
         {
-            return;
+            return nullptr;
         }
 
         // if the focused tab was not the last tab, restore that
@@ -2307,16 +2378,105 @@ namespace winrt::TerminalApp::implementation
         RequestLaunchPosition.raise(*this, launchPosRequest);
         layout.InitialPosition(launchPosRequest.Position());
 
-        ApplicationState::SharedInstance().AppendPersistedWindowLayout(layout);
+        return layout;
+    }
+
+    void TerminalPage::PersistState()
+    {
+        // There are two persistence mechanisms in play here:
+        //   * PersistedWindowLayouts (vector) — consumed on next startup to
+        //     re-open a matching set of windows. Cleared after restore.
+        //   * PersistedWorkspaces (name-keyed map) — the full tab/buffer
+        //     state of a named window, claimed by name on demand via
+        //     ApplicationState::TakeWorkspace.
+        //
+        // For named windows we save the full layout into the workspace map
+        // and drop a lightweight `openWorkspace` stub into the generic vector,
+        // so the generic restore path re-opens the named window which in
+        // turn claims its own workspace. Unnamed windows don't have a stable
+        // key, so their full layout is stored directly in the vector.
+        if (const auto layout = GetWindowLayout())
+        {
+            const auto& windowName = _WindowProperties.WindowName();
+            if (!windowName.empty())
+            {
+                // Persist the full layout into the workspace collection.
+                ApplicationState::SharedInstance().SaveWorkspace(windowName, layout);
+
+                // Build a minimal layout with just an openWorkspace action
+                // so the generic restore path re-opens this workspace by name.
+                std::vector<ActionAndArgs> actions;
+                ActionAndArgs action;
+                action.Action(ShortcutAction::OpenWorkspace);
+                OpenWorkspaceArgs args{ windowName };
+                action.Args(args);
+                actions.emplace_back(std::move(action));
+
+                WindowLayout stub;
+                stub.TabLayout(winrt::single_threaded_vector<ActionAndArgs>(std::move(actions)));
+                ApplicationState::SharedInstance().AppendPersistedWindowLayout(stub);
+            }
+            else
+            {
+                ApplicationState::SharedInstance().AppendPersistedWindowLayout(layout);
+            }
+        }
     }
 
     // Method Description:
-    // - Close the terminal app. If there is more
-    //   than one tab opened, show a warning dialog.
+    // - Determines whether a close-window action should show a confirmation
+    //   dialog, based on the confirmOnClose setting and the current window state.
+    // Arguments:
+    // - <none>
+    // Return Value:
+    // - true, if a warning dialog should be shown before closing the window
+    bool TerminalPage::_ShouldWarnOnClose() const
+    {
+        const auto setting = _settings.GlobalSettings().ConfirmOnClose();
+        switch (setting)
+        {
+        case ConfirmOnClose::Always:
+            return true;
+        case ConfirmOnClose::Automatic:
+        {
+            // Warn if there's more than one tab, or the one tab has more than one pane.
+            return _HasMultipleTabs() || _GetTabImpl(_tabs.GetAt(0))->GetLeafPaneCount() > 1;
+        }
+        case ConfirmOnClose::Never:
+        default:
+            return false;
+        }
+    }
+
+    // Method Description:
+    // - Determines whether closing a specific tab should show a confirmation
+    //   dialog, based on the confirmOnClose setting and the tab's state.
+    // Arguments:
+    // - tab: The tab being closed
+    // Return Value:
+    // - true, if a warning dialog should be shown before closing the tab
+    bool TerminalPage::_ShouldWarnOnCloseTab(const winrt::com_ptr<Tab>& tab) const
+    {
+        const auto setting = _settings.GlobalSettings().ConfirmOnClose();
+        switch (setting)
+        {
+        case ConfirmOnClose::Always:
+            return true;
+        case ConfirmOnClose::Automatic:
+            // Warn if this tab has more than one pane.
+            return tab->GetLeafPaneCount() > 1;
+        case ConfirmOnClose::Never:
+        default:
+            return false;
+        }
+    }
+
+    // Method Description:
+    // - Close the terminal app. If the confirmOnClose setting indicates we should
+    //   warn for the current window state, show a warning dialog.
     safe_void_coroutine TerminalPage::CloseWindow()
     {
-        if (_HasMultipleTabs() &&
-            _settings.GlobalSettings().ConfirmCloseAllTabs() &&
+        if (_ShouldWarnOnClose() &&
             !_displayingCloseDialog)
         {
             if (_newTabButton && _newTabButton.Flyout())
@@ -2325,7 +2485,17 @@ namespace winrt::TerminalApp::implementation
             }
             _DismissTabContextMenus();
             _displayingCloseDialog = true;
-            auto warningResult = co_await _ShowCloseWarningDialog();
+
+            const auto weak = get_weak();
+            auto warningResult = co_await _ShowConfirmCloseDialog(ConfirmCloseDialogKind::Window);
+            // Hold a strong reference to `this` after the co_await; we may
+            // be the last holder if the window was already being torn down.
+            auto strong = weak.get();
+            if (!strong)
+            {
+                co_return;
+            }
+
             _displayingCloseDialog = false;
 
             if (warningResult != ContentDialogResult::Primary)
@@ -2794,14 +2964,15 @@ namespace winrt::TerminalApp::implementation
     // Arguments:
     // - direction: The direction to move the separator in.
     // Return Value:
-    // - <none>
-    void TerminalPage::_ResizePane(const ResizeDirection& direction)
+    // - whether a pane was resized
+    bool TerminalPage::_ResizePane(const ResizeDirection& direction)
     {
         if (const auto tabImpl{ _GetFocusedTabImpl() })
         {
             _UnZoomIfNeeded();
-            tabImpl->ResizePane(direction);
+            return tabImpl->ResizePane(direction);
         }
+        return false;
     }
 
     // Method Description:
@@ -2949,7 +3120,9 @@ namespace winrt::TerminalApp::implementation
     // - Sends the text back to the TermControl through the event's
     //   `HandleClipboardData` member function.
     // - Does some of this in a background thread, as to not hang/crash the UI thread.
-    safe_void_coroutine TerminalPage::_PasteFromClipboardHandler(const IInspectable sender, const IInspectable /* args */)
+    // Arguments:
+    // - eventArgs: the PasteFromClipboard event sent from the TermControl
+    safe_void_coroutine TerminalPage::_PasteFromClipboardHandler(const IInspectable sender, const PasteFromClipboardEventArgs eventArgs)
     try
     {
         // The old Win32 clipboard API as used below is somewhere in the order of 300-1000x faster than
@@ -2957,19 +3130,8 @@ namespace winrt::TerminalApp::implementation
         const auto weakThis = get_weak();
         const auto dispatcher = Dispatcher();
         const auto globalSettings = _settings.GlobalSettings();
-        const auto control = sender.as<TermControl>();
-        const auto broadcastGroup = _getBroadcastGroupFromControl(control);
-        // Used to determine whether to emit empty pastes and strip extra whitespace
-        const auto anyHasBracketedPaste = std::any_of(std::begin(broadcastGroup), std::end(broadcastGroup), [](auto&& content) {
-            const auto control{ content.GetTermControl() };
-            return control && !control.ReadOnly() && control.BracketedPasteEnabled();
-        });
-        // Used to determine whether to warn on multi-line paste
-        // If none lack bracketed paste, we can skip the warning.
-        const auto anyHasUnbracketedPaste = !anyHasBracketedPaste || std::any_of(std::begin(broadcastGroup), std::end(broadcastGroup), [](auto&& content) {
-            const auto control{ content.GetTermControl() };
-            return control && !control.ReadOnly() && !control.BracketedPasteEnabled();
-        });
+        const auto bracketedPaste = eventArgs.BracketedPasteEnabled();
+        const auto sourceId = sender.try_as<ControlInteractivity>().Id();
 
         // GetClipboardData might block for up to 30s for delay-rendered contents.
         co_await winrt::resume_background();
@@ -2980,11 +3142,8 @@ namespace winrt::TerminalApp::implementation
             text = clipboard::read();
         }
 
-        if (!anyHasBracketedPaste && globalSettings.TrimPaste())
+        if (!bracketedPaste && globalSettings.TrimPaste())
         {
-            // Warning - when broadcast is enabled, this will trim the paste for all receivers.
-            // Until we propagate this decision-making elsewhere, this is safer; broadcast will not auto-submit commands in other panes.
-            // Tracked in GH#20164
             text = winrt::hstring{ Utils::TrimPaste(text) };
         }
 
@@ -2992,7 +3151,7 @@ namespace winrt::TerminalApp::implementation
         // Bracketed Paste provides an application a way to know whether the
         // user pasted, even if there was no applicable content on it. This
         // behavior is observed in GNOME Terminal, among others.
-        if (!anyHasBracketedPaste && text.empty())
+        if (!bracketedPaste && text.empty())
         {
             co_return;
         }
@@ -3004,7 +3163,7 @@ namespace winrt::TerminalApp::implementation
             // NOTE that this is unsafe, because a shell that doesn't support bracketed paste
             // will allow an attacker to enable the mode, not realize that, and then accept
             // the paste as if it was a series of legitimate commands. See GH#13014.
-            warnMultiLine = anyHasUnbracketedPaste;
+            warnMultiLine = !bracketedPaste;
             break;
         case WarnAboutMultiLinePaste::Always:
             warnMultiLine = true;
@@ -3074,7 +3233,30 @@ namespace winrt::TerminalApp::implementation
         // This will end up calling ConptyConnection::WriteInput which calls WriteFile which may block for
         // an indefinite amount of time. Avoid freezes and deadlocks by running this on a background thread.
         assert(!dispatcher.HasThreadAccess());
-        _writeInputStringToBroadcastGroup(broadcastGroup, text, WriteInputStringType::Clipboard);
+        eventArgs.HandleClipboardData(text);
+
+        // GH#18821: If broadcast input is active, paste the same text into all other
+        // panes on the tab. We do this here (rather than re-reading the
+        // clipboard per-pane) so that only one paste warning is shown.
+        co_await wil::resume_foreground(dispatcher);
+        if (const auto strongThis = weakThis.get())
+        {
+            if (const auto& tab{ strongThis->_GetFocusedTabImpl() })
+            {
+                if (tab->TabStatus().IsInputBroadcastActive())
+                {
+                    tab->GetRootPane()->WalkTree([&](auto&& pane) {
+                        if (const auto control = pane->GetTerminalControl())
+                        {
+                            if (control.ContentId() != sourceId && !control.ReadOnly())
+                            {
+                                control.RawWriteString(text);
+                            }
+                        }
+                    });
+                }
+            }
+        }
     }
     CATCH_LOG();
 
@@ -3429,6 +3611,16 @@ namespace winrt::TerminalApp::implementation
         }
     }
 
+    // Method Description:
+    // - Paste text from the Windows Clipboard to the focused terminal
+    void TerminalPage::_PasteText()
+    {
+        if (const auto& control{ _GetActiveControl() })
+        {
+            control.PasteTextFromClipboard();
+        }
+    }
+
     // Function Description:
     // - Called when the settings button is clicked. ShellExecutes the settings
     //   file, as to open it in the default editor for .json files. Does this in
@@ -3917,6 +4109,12 @@ namespace winrt::TerminalApp::implementation
 
         _tabRow.ShowElevationShield(IsRunningElevated() && _settings.GlobalSettings().ShowAdminShield());
 
+        // Apply the ShowWindowsButton theme setting.
+        if (const auto theme = _settings.GlobalSettings().CurrentTheme())
+        {
+            _tabRow.ShowWindowsButton(theme.Window() ? theme.Window().ShowWindowsButton() : true);
+        }
+
         Media::SolidColorBrush transparent{ Windows::UI::Colors::Transparent() };
         _tabView.Background(transparent);
 
@@ -5557,6 +5755,156 @@ namespace winrt::TerminalApp::implementation
         }
     }
 
+    // Rebuild the workspace flyout contents. Called every time the flyout opens
+    // so it reflects the current set of persisted workspaces.
+    void TerminalPage::_PopulateWorkspaceFlyout()
+    {
+        if (!_workspaceFlyout)
+        {
+            return;
+        }
+
+        _workspaceFlyout.Items().Clear();
+
+        // --- "Name / Rename this window" ---
+        {
+            MenuFlyoutItem item{};
+            item.Text(_WindowProperties.WindowName().empty() ? RS_(L"NameThisWindowMenuItem") : RS_(L"RenameThisWindowMenuItem"));
+
+            auto iconElement = UI::IconPathConverter::IconWUX(L"\uE8AC"); // Rename glyph
+            Automation::AutomationProperties::SetAccessibilityView(iconElement, Automation::Peers::AccessibilityView::Raw);
+            item.Icon(iconElement);
+
+            item.Click([weakThis{ get_weak() }](auto&&, auto&&) {
+                if (auto page{ weakThis.get() })
+                {
+                    // Re-use the existing openWindowRenamer action.
+                    page->_actionDispatch->DoAction(ActionAndArgs{ ShortcutAction::OpenWindowRenamer, nullptr });
+                }
+            });
+            _workspaceFlyout.Items().Append(item);
+        }
+
+        // --- Gather open window info first so we can filter workspaces ---
+        // Ask the host (via AppHost → WindowEmperor) for all live windows.
+        const auto windowListReq{ winrt::make<WindowListRequest>() };
+        RequestWindowList.raise(*this, windowListReq);
+        const auto windowEntries = windowListReq.Entries();
+
+        // Collect the names of all currently-open windows so we can hide
+        // workspaces that are already live from the saved-workspaces list.
+        std::set<winrt::hstring> openWindowNames;
+        if (windowEntries)
+        {
+            for (const auto& entry : windowEntries)
+            {
+                const auto& name = entry.Name();
+                if (!name.empty())
+                {
+                    openWindowNames.emplace(name);
+                }
+            }
+        }
+
+        // --- Saved workspaces section (only those not currently open) ---
+        const auto workspaces = ApplicationState::SharedInstance().AllPersistedWorkspaces();
+        if (workspaces && workspaces.Size() > 0)
+        {
+            bool addedSeparator = false;
+
+            for (const auto& pair : workspaces)
+            {
+                const auto name = pair.Key();
+
+                // Skip workspaces that correspond to a currently-open window.
+                if (openWindowNames.count(name))
+                {
+                    continue;
+                }
+
+                if (!addedSeparator)
+                {
+                    _workspaceFlyout.Items().Append(MenuFlyoutSeparator{});
+                    addedSeparator = true;
+                }
+
+                MenuFlyoutItem item{};
+                item.Text(name);
+
+                auto iconElement = UI::IconPathConverter::IconWUX(L"\uE8F1"); // SwitchApps glyph
+                Automation::AutomationProperties::SetAccessibilityView(iconElement, Automation::Peers::AccessibilityView::Raw);
+                item.Icon(iconElement);
+
+                item.Click([weakThis{ get_weak() }, name](auto&&, auto&&) {
+                    if (auto page{ weakThis.get() })
+                    {
+                        page->_OpenWorkspaceWindow(name);
+                    }
+                });
+
+                _workspaceFlyout.Items().Append(item);
+            }
+        }
+
+        // --- Open windows section ---
+
+        if (windowEntries && windowEntries.Size() > 0)
+        {
+            _workspaceFlyout.Items().Append(MenuFlyoutSeparator{});
+
+            const auto thisWindowId = _WindowProperties.WindowId();
+
+            for (const auto& entry : windowEntries)
+            {
+                const auto id = entry.Id();
+                const auto& name = entry.Name();
+
+                // Build display text like "#1: MyWindow" or "#2: <unnamed>"
+                winrt::hstring displayText;
+                if (name.empty())
+                {
+                    displayText = winrt::hstring{ RS_fmt(L"WindowListUnnamedEntry", id) };
+                }
+                else
+                {
+                    displayText = winrt::hstring{ fmt::format(FMT_COMPILE(L"#{}: {}"), id, name) };
+                }
+
+                MenuFlyoutItem item{};
+                item.Text(displayText);
+
+                // Use a different glyph for the current window
+                if (id == thisWindowId)
+                {
+                    auto iconElement = UI::IconPathConverter::IconWUX(L"\uE73E"); // CheckMark glyph
+                    Automation::AutomationProperties::SetAccessibilityView(iconElement, Automation::Peers::AccessibilityView::Raw);
+                    item.Icon(iconElement);
+                    item.IsEnabled(false); // Can't summon yourself
+                }
+                else
+                {
+                    auto iconElement = UI::IconPathConverter::IconWUX(L"\uE737"); // ChromeRestore glyph
+                    Automation::AutomationProperties::SetAccessibilityView(iconElement, Automation::Peers::AccessibilityView::Raw);
+                    item.Icon(iconElement);
+
+                    // Click handler: summon the target window by ID.
+                    // We raise SummonWindowByIdRequested which is handled by
+                    // AppHost to directly summon the window without creating
+                    // a new tab (unlike _OpenWorkspaceWindow which launches
+                    // `wt -w <name>` and creates a tab).
+                    item.Click([weakThis{ get_weak() }, id](auto&&, auto&&) {
+                        if (auto page{ weakThis.get() })
+                        {
+                            page->SummonWindowByIdRequested.raise(*page, winrt::make<SummonWindowByIdRequestedArgs>(id));
+                        }
+                    });
+                }
+
+                _workspaceFlyout.Items().Append(item);
+            }
+        }
+    }
+
     // Handler for our WindowProperties's PropertyChanged event. We'll use this
     // to pop the "Identify Window" toast when the user renames our window.
     void TerminalPage::_windowPropertyChanged(const IInspectable& /*sender*/, const WUX::Data::PropertyChangedEventArgs& args)
@@ -5566,6 +5914,10 @@ namespace winrt::TerminalApp::implementation
             return;
         }
 
+        // Keep the workspace dropdown label in sync with the window name.
+        // Use raw WindowName() so clearing the name hides the text.
+        _tabRow.WorkspaceName(_WindowProperties.WindowName());
+
         // DON'T display the confirmation if this is the name we were
         // given on startup!
         if (_startupState == StartupState::Initialized)
@@ -5810,326 +6162,4 @@ namespace winrt::TerminalApp::implementation
 
         return profileMenuItemFlyout;
     }
-
-    static void _translatePathInPlace(std::wstring& fullPath, PathTranslationStyle translationStyle)
-    {
-        static constexpr wil::zwstring_view s_pathPrefixes[] = {
-            {},
-            /* WSL */ L"/mnt/",
-            /* Cygwin */ L"/cygdrive/",
-            /* MSYS2 */ L"/",
-            /* MinGW */ {},
-        };
-        static constexpr wil::zwstring_view sSingleQuoteEscape = L"'\\''";
-        static constexpr auto cchSingleQuoteEscape = sSingleQuoteEscape.size();
-
-        if (translationStyle == PathTranslationStyle::None)
-        {
-            return;
-        }
-
-        // All of the other path translation modes current result in /-delimited paths
-        std::replace(fullPath.begin(), fullPath.end(), L'\\', L'/');
-
-        // Escape single quotes, assuming translated paths are always quoted by a pair of single quotes.
-        size_t pos = 0;
-        while ((pos = fullPath.find(L'\'', pos)) != std::wstring::npos)
-        {
-            // ' -> '\'' (for POSIX shell)
-            fullPath.replace(pos, 1, sSingleQuoteEscape);
-            // Arithmetic overflow cannot occur here.
-            pos += cchSingleQuoteEscape;
-        }
-
-        if (translationStyle == PathTranslationStyle::MinGW)
-        {
-            return;
-        }
-
-        if (fullPath.size() >= 2 && fullPath.at(1) == L':')
-        {
-            // C:/foo/bar -> Cc/foo/bar
-            fullPath.at(1) = til::tolower_ascii(fullPath.at(0));
-            // Cc/foo/bar -> [PREFIX]c/foo/bar
-            fullPath.replace(0, 1, s_pathPrefixes[static_cast<int>(translationStyle)]);
-        }
-        else if (translationStyle == PathTranslationStyle::WSL)
-        {
-            // Stripping the UNC name and distribution prefix only applies to WSL.
-            static constexpr std::wstring_view wslPathPrefixes[] = { L"//wsl.localhost/", L"//wsl$/" };
-            for (auto prefix : wslPathPrefixes)
-            {
-                if (til::starts_with(fullPath, prefix))
-                {
-                    if (const auto idx = fullPath.find(L'/', prefix.size()); idx != std::wstring::npos)
-                    {
-                        // //wsl.localhost/Ubuntu-18.04/foo/bar -> /foo/bar
-                        fullPath.erase(0, idx);
-                    }
-                    else
-                    {
-                        // //wsl.localhost/Ubuntu-18.04 -> /
-                        fullPath = L"/";
-                    }
-                    break;
-                }
-            }
-        }
-    }
-
-    // Method Description:
-    // - Handle the DragOver event. We'll signal that the drag operation we
-    //   support is the "copy" operation, and we'll also customize the
-    //   appearance of the drag-drop UI, by removing the preview and setting a
-    //   custom caption. For more information, see
-    //   https://docs.microsoft.com/en-us/windows/uwp/design/input/drag-and-drop#customize-the-ui
-    // Arguments:
-    // - e: The DragEventArgs from the DragOver event
-    // Return Value:
-    // - <none>
-    void TerminalPage::_ControlDragOverHandler(const Windows::Foundation::IInspectable& /*sender*/,
-                                               const DragEventArgs& e)
-    {
-        // We can only handle drag/dropping StorageItems (files) and plain Text
-        // currently. If the format on the clipboard is anything else, returning
-        // early here will prevent the drag/drop from doing anything.
-        if (!(e.DataView().Contains(StandardDataFormats::StorageItems()) ||
-              e.DataView().Contains(StandardDataFormats::Text())))
-        {
-            return;
-        }
-
-        // Make sure to set the AcceptedOperation, so that we can later receive the path in the Drop event
-        e.AcceptedOperation(DataPackageOperation::Copy);
-
-        // Sets custom UI text
-        if (e.DataView().Contains(StandardDataFormats::StorageItems()))
-        {
-            e.DragUIOverride().Caption(RS_(L"DragFileCaption"));
-        }
-        else if (e.DataView().Contains(StandardDataFormats::Text()))
-        {
-            e.DragUIOverride().Caption(RS_(L"DragTextCaption"));
-        }
-
-        // Sets if the caption is visible
-        e.DragUIOverride().IsCaptionVisible(true);
-        // Sets if the dragged content is visible
-        e.DragUIOverride().IsContentVisible(false);
-        // Sets if the glyph is visible
-        e.DragUIOverride().IsGlyphVisible(false);
-    }
-
-    // Method Description:
-    // - Async handler for the "Drop" event. If a file was dropped onto our
-    //   root, we'll try to get the path of the file dropped onto us, and write
-    //   the full path of the file to our terminal connection. Like conhost, if
-    //   the path contains a space, we'll wrap the path in quotes.
-    // - Unlike conhost, if multiple files are dropped onto the terminal, we'll
-    //   write all the paths to the terminal, separated by spaces.
-    // Arguments:
-    // - e: The DragEventArgs from the Drop event
-    // Return Value:
-    // - <none>
-    safe_void_coroutine TerminalPage::_ControlDragDropHandler(Windows::Foundation::IInspectable sender,
-                                                              DragEventArgs e)
-    {
-        auto dispatcher = Dispatcher();
-        auto weak = get_weak();
-        const auto control = sender.as<TermControl>();
-        const auto broadcastGroup = _getBroadcastGroupFromControl(control);
-
-        if (_hostingHwnd)
-        {
-            SetForegroundWindow(*_hostingHwnd);
-        }
-
-        if (e.DataView().Contains(StandardDataFormats::ApplicationLink()))
-        {
-            try
-            {
-                auto link{ co_await e.DataView().GetApplicationLinkAsync() };
-                if (const auto strong = weak.get())
-                {
-                    _writeInputStringToBroadcastGroup(broadcastGroup, link.AbsoluteUri(), WriteInputStringType::Clipboard);
-                }
-            }
-            CATCH_LOG();
-        }
-        else if (e.DataView().Contains(StandardDataFormats::WebLink()))
-        {
-            try
-            {
-                auto link{ co_await e.DataView().GetWebLinkAsync() };
-                if (const auto strong = weak.get())
-                {
-                    _writeInputStringToBroadcastGroup(broadcastGroup, link.AbsoluteUri(), WriteInputStringType::Clipboard);
-                }
-            }
-            CATCH_LOG();
-        }
-        else if (e.DataView().Contains(StandardDataFormats::Text()))
-        {
-            try
-            {
-                auto text{ co_await e.DataView().GetTextAsync() };
-                if (const auto strong = weak.get())
-                {
-                    _writeInputStringToBroadcastGroup(broadcastGroup, text, WriteInputStringType::Clipboard);
-                }
-            }
-            CATCH_LOG();
-        }
-        // StorageItem must be last. Some applications put hybrid data format items
-        // in a drop message and we'll eat a crash when we request them.
-        // Those applications usually include Text as well, so having storage items
-        // last makes sure we'll hit text before getting to them.
-        else if (e.DataView().Contains(StandardDataFormats::StorageItems()))
-        {
-            Windows::Foundation::Collections::IVectorView<Windows::Storage::IStorageItem> items;
-            try
-            {
-                items = co_await e.DataView().GetStorageItemsAsync();
-            }
-            CATCH_LOG();
-
-            if (items && items.Size() > 0)
-            {
-                std::vector<std::wstring> fullPaths;
-
-                // GH#14628: Workaround for GetStorageItemsAsync() only returning 16 items
-                // at most when dragging and dropping from archives (zip, 7z, rar, etc.)
-                if (items.Size() == 16 && e.DataView().Contains(winrt::hstring{ L"FileDrop" }))
-                {
-                    auto fileDropData = co_await e.DataView().GetDataAsync(winrt::hstring{ L"FileDrop" });
-                    if (fileDropData != nullptr)
-                    {
-                        auto stream = fileDropData.as<IRandomAccessStream>();
-                        stream.Seek(0);
-
-                        const uint32_t streamSize = gsl::narrow_cast<uint32_t>(stream.Size());
-                        const Buffer buf(streamSize);
-                        const auto buffer = co_await stream.ReadAsync(buf, streamSize, InputStreamOptions::None);
-
-                        const HGLOBAL hGlobal = buffer.data();
-                        const auto count = DragQueryFileW(static_cast<HDROP>(hGlobal), 0xFFFFFFFF, nullptr, 0);
-                        fullPaths.reserve(count);
-
-                        for (unsigned int i = 0; i < count; i++)
-                        {
-                            std::wstring path;
-                            path.resize(wil::max_path_length);
-                            const auto charsCopied = DragQueryFileW(static_cast<HDROP>(hGlobal), i, path.data(), wil::max_path_length);
-
-                            if (charsCopied > 0)
-                            {
-                                path.resize(charsCopied);
-                                fullPaths.emplace_back(std::move(path));
-                            }
-                        }
-                    }
-                }
-                else
-                {
-                    fullPaths.reserve(items.Size());
-                    for (const auto& item : items)
-                    {
-                        fullPaths.emplace_back(item.Path());
-                    }
-                }
-
-                const auto strong = weak.get();
-                if (!strong)
-                {
-                    co_return;
-                }
-
-                // TODO(DH) the fuckin' delimiter from DragDropDelimiter
-                std::unordered_map<PathTranslationStyle, winrt::hstring> translatedPaths;
-                for (auto&& target : broadcastGroup)
-                {
-                    const auto profile{ target.GetProfile() };
-                    auto translationStyle{ profile.PathTranslationStyle() };
-                    const auto broadcastTargetControl{ target.GetTermControl() };
-                    if (broadcastTargetControl.ReadOnly())
-                    {
-                        continue;
-                    }
-
-                    auto [it, isNew] = translatedPaths.try_emplace(translationStyle, winrt::hstring{});
-                    if (isNew)
-                    {
-                        std::wstring allPathsString;
-                        for (auto fullPath : fullPaths)
-                        {
-                            // Join the paths with spaces
-                            if (!allPathsString.empty())
-                            {
-                                allPathsString += L" ";
-                            }
-
-                            _translatePathInPlace(fullPath, translationStyle);
-
-                            // All translated paths get quotes, and all strings spaces get quotes; all translated paths get single quotes
-                            const auto quotesNeeded = translationStyle != PathTranslationStyle::None || fullPath.find(L' ') != std::wstring::npos;
-                            const auto quotesChar = translationStyle != PathTranslationStyle::None ? L'\'' : L'"';
-
-                            // Append fullPath and also wrap it in quotes if needed
-                            if (quotesNeeded)
-                            {
-                                allPathsString.push_back(quotesChar);
-                            }
-                            allPathsString.append(fullPath);
-                            if (quotesNeeded)
-                            {
-                                allPathsString.push_back(quotesChar);
-                            }
-                        }
-                        it->second = winrt::hstring{ allPathsString };
-                    }
-
-                    broadcastTargetControl.WriteInputString(it->second, WriteInputStringType::Clipboard);
-                }
-            }
-        }
-    }
-
-    TerminalPage::broadcast_group TerminalPage::_getBroadcastGroupFromControl(const TermControl& control)
-    {
-        TerminalPage::broadcast_group contents;
-        auto controlContent{ TerminalPaneContent::ContentFromControl(control) };
-        if (controlContent)
-        {
-            contents.emplace_back(controlContent);
-        }
-
-        if (const auto& tab{ _GetFocusedTabImpl() })
-        {
-            if (tab->TabStatus().IsInputBroadcastActive())
-            {
-                tab->GetRootPane()->WalkTree([&](auto&& pane) {
-                    if (auto content = pane->GetContent(); content && content != controlContent)
-                    {
-                        if (const auto termContent{ content.try_as<TerminalPaneContent>() })
-                        {
-                            contents.emplace_back(*termContent);
-                        }
-                    }
-                });
-            }
-        }
-        return contents;
-    }
-
-    void TerminalPage::_writeInputStringToBroadcastGroup(const TerminalPage::broadcast_group& broadcastGroup, const winrt::hstring text, WriteInputStringType type)
-    {
-        for (auto&& content : broadcastGroup)
-        {
-            auto nextControl{ content.GetTermControl() };
-            if (!nextControl.ReadOnly())
-            {
-                nextControl.WriteInputString(text, type);
-            }
-        }
-    }
 }

src/cascadia/TerminalApp/TerminalPage.h

@@ -10,8 +10,11 @@
 #include "AppKeyBindings.h"
 #include "AppCommandlineArgs.h"
 #include "RenameWindowRequestedArgs.g.h"
+#include "SummonWindowByIdRequestedArgs.g.h"
 #include "RequestMoveContentArgs.g.h"
 #include "LaunchPositionRequest.g.h"
+#include "WindowListEntry.g.h"
+#include "WindowListRequest.g.h"
 #include "Toast.h"
 
 #include "WindowsPackageManagerFactory.h"
@@ -54,6 +57,16 @@ namespace winrt::TerminalApp::implementation
         ScrollDown = 1
     };
 
+    enum class ConfirmCloseDialogKind
+    {
+        Pane,
+        Tab,
+        MultiplePanes,
+        MultipleTabs,
+        Window,
+        CloseAll
+    };
+
     struct RenameWindowRequestedArgs : RenameWindowRequestedArgsT<RenameWindowRequestedArgs>
     {
         WINRT_PROPERTY(winrt::hstring, ProposedName);
@@ -63,6 +76,15 @@ namespace winrt::TerminalApp::implementation
             _ProposedName{ name } {};
     };
 
+    struct SummonWindowByIdRequestedArgs : SummonWindowByIdRequestedArgsT<SummonWindowByIdRequestedArgs>
+    {
+        WINRT_PROPERTY(uint64_t, WindowId);
+
+    public:
+        SummonWindowByIdRequestedArgs(uint64_t id) :
+            _WindowId{ id } {};
+    };
+
     struct RequestMoveContentArgs : RequestMoveContentArgsT<RequestMoveContentArgs>
     {
         WINRT_PROPERTY(winrt::hstring, Window);
@@ -84,6 +106,25 @@ namespace winrt::TerminalApp::implementation
         til::property<winrt::Microsoft::Terminal::Settings::Model::LaunchPosition> Position;
     };
 
+    struct WindowListEntry : WindowListEntryT<WindowListEntry>
+    {
+        WindowListEntry() = default;
+
+        til::property<uint64_t> Id;
+        til::property<winrt::hstring> Name;
+    };
+
+    struct WindowListRequest : WindowListRequestT<WindowListRequest>
+    {
+        WindowListRequest() :
+            _Entries{ winrt::single_threaded_vector<winrt::TerminalApp::WindowListEntry>() } {}
+
+        winrt::Windows::Foundation::Collections::IVector<winrt::TerminalApp::WindowListEntry> Entries() const { return _Entries; }
+
+    private:
+        winrt::Windows::Foundation::Collections::IVector<winrt::TerminalApp::WindowListEntry> _Entries;
+    };
+
     struct WinGetSearchParams
     {
         winrt::Microsoft::Management::Deployment::PackageMatchField Field;
@@ -122,6 +163,7 @@ namespace winrt::TerminalApp::implementation
 
         safe_void_coroutine RequestQuit();
         safe_void_coroutine CloseWindow();
+        winrt::Microsoft::Terminal::Settings::Model::WindowLayout GetWindowLayout();
         void PersistState();
         std::vector<IPaneContent> Panes() const;
 
@@ -168,6 +210,7 @@ namespace winrt::TerminalApp::implementation
 
         void OpenSettingsUI();
         void WindowActivated(const bool activated);
+        bool FocusTab(const winrt::TerminalApp::Tab& tab);
 
         bool OnDirectKeyEvent(const uint32_t vkey, const uint8_t scanCode, const bool down);
 
@@ -192,6 +235,8 @@ namespace winrt::TerminalApp::implementation
         til::typed_event<IInspectable, IInspectable> IdentifyWindowsRequested;
         til::typed_event<IInspectable, winrt::TerminalApp::RenameWindowRequestedArgs> RenameWindowRequested;
         til::typed_event<IInspectable, IInspectable> SummonWindowRequested;
+        til::typed_event<IInspectable, winrt::TerminalApp::SummonWindowByIdRequestedArgs> SummonWindowByIdRequested;
+        til::typed_event<IInspectable, winrt::TerminalApp::Tab> FocusTabRequested;
         til::typed_event<IInspectable, winrt::Microsoft::Terminal::Control::WindowSizeChangedEventArgs> WindowSizeChanged;
 
         til::typed_event<IInspectable, IInspectable> OpenSystemMenu;
@@ -203,6 +248,7 @@ namespace winrt::TerminalApp::implementation
         til::typed_event<Windows::Foundation::IInspectable, winrt::TerminalApp::RequestReceiveContentArgs> RequestReceiveContent;
 
         til::typed_event<IInspectable, winrt::TerminalApp::LaunchPositionRequest> RequestLaunchPosition;
+        til::typed_event<IInspectable, winrt::TerminalApp::WindowListRequest> RequestWindowList;
 
         WINRT_OBSERVABLE_PROPERTY(winrt::Windows::UI::Xaml::Media::Brush, TitlebarBrush, PropertyChanged.raise, nullptr);
         WINRT_OBSERVABLE_PROPERTY(winrt::Windows::UI::Xaml::Media::Brush, FrameBrush, PropertyChanged.raise, nullptr);
@@ -225,6 +271,7 @@ namespace winrt::TerminalApp::implementation
         TerminalApp::TabRowControl _tabRow{ nullptr };
         Windows::UI::Xaml::Controls::Grid _tabContent{ nullptr };
         Microsoft::UI::Xaml::Controls::SplitButton _newTabButton{ nullptr };
+        Windows::UI::Xaml::Controls::MenuFlyout _workspaceFlyout{ nullptr };
         winrt::TerminalApp::ColorPickupFlyout _tabColorPicker{ nullptr };
 
         Microsoft::Terminal::Settings::Model::CascadiaSettings _settings{ nullptr };
@@ -301,8 +348,7 @@ namespace winrt::TerminalApp::implementation
         winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowDialogHelper(const std::wstring_view& name);
 
         void _ShowAboutDialog();
-        winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowQuitDialog();
-        winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowCloseWarningDialog();
+        winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowConfirmCloseDialog(ConfirmCloseDialogKind kind);
         winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowCloseReadOnlyDialog();
         winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowMultiLinePasteWarningDialog();
         winrt::Windows::Foundation::IAsyncOperation<winrt::Windows::UI::Xaml::Controls::ContentDialogResult> _ShowLargePasteWarningDialog();
@@ -324,6 +370,7 @@ namespace winrt::TerminalApp::implementation
         void _restartPaneConnection(const TerminalApp::TerminalPaneContent&, const winrt::Windows::Foundation::IInspectable&);
 
         safe_void_coroutine _OpenNewWindow(const Microsoft::Terminal::Settings::Model::INewContentArgs newContentArgs);
+        safe_void_coroutine _OpenWorkspaceWindow(const winrt::hstring name);
 
         void _OpenNewTerminalViaDropdown(const Microsoft::Terminal::Settings::Model::NewTerminalArgs newTerminalArgs);
 
@@ -349,7 +396,7 @@ namespace winrt::TerminalApp::implementation
 
         safe_void_coroutine _ExportTab(const Tab& tab, winrt::hstring filepath);
 
-        winrt::Windows::Foundation::IAsyncAction _HandleCloseTabRequested(winrt::TerminalApp::Tab tab);
+        winrt::Windows::Foundation::IAsyncAction _HandleCloseTabRequested(winrt::TerminalApp::Tab tab, bool skipConfirmClose = false);
         void _CloseTabAtIndex(uint32_t index);
         void _RemoveTab(const winrt::TerminalApp::Tab& tab);
         safe_void_coroutine _RemoveTabs(const std::vector<winrt::TerminalApp::Tab> tabs);
@@ -400,9 +447,12 @@ namespace winrt::TerminalApp::implementation
         TerminalApp::Tab _GetTabByTabViewItem(const IInspectable& tabViewItem) const noexcept;
 
         void _HandleClosePaneRequested(std::shared_ptr<Pane> pane);
+        bool _ShouldWarnOnClose() const;
+        bool _ShouldWarnOnCloseTab(const winrt::com_ptr<Tab>& tab) const;
         safe_void_coroutine _SetFocusedTab(const winrt::TerminalApp::Tab tab);
         safe_void_coroutine _CloseFocusedPane();
-        void _ClosePanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds);
+        safe_void_coroutine _ClosePanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds);
+        void _CloseRemainingPanes(weak_ref<Tab> weakTab, std::vector<uint32_t> paneIds);
         winrt::Windows::Foundation::IAsyncOperation<bool> _PaneConfirmCloseReadOnly(std::shared_ptr<Pane> pane);
         void _AddPreviouslyClosedPaneOrTab(std::vector<Microsoft::Terminal::Settings::Model::ActionAndArgs>&& args);
 
@@ -412,7 +462,7 @@ namespace winrt::TerminalApp::implementation
                         const Microsoft::Terminal::Settings::Model::SplitDirection splitType,
                         const float splitSize,
                         std::shared_ptr<Pane> newPane);
-        void _ResizePane(const Microsoft::Terminal::Settings::Model::ResizeDirection& direction);
+        bool _ResizePane(const Microsoft::Terminal::Settings::Model::ResizeDirection& direction);
         void _ToggleSplitOrientation();
 
         void _ScrollPage(ScrollDirection scrollDirection);
@@ -420,7 +470,7 @@ namespace winrt::TerminalApp::implementation
         void _SetAcceleratorForMenuItem(Windows::UI::Xaml::Controls::MenuFlyoutItem& menuItem, const winrt::Microsoft::Terminal::Control::KeyChord& keyChord);
 
         safe_void_coroutine _PasteFromClipboardHandler(const IInspectable sender,
-                                                       const IInspectable eventArgs);
+                                                       const Microsoft::Terminal::Control::PasteFromClipboardEventArgs eventArgs);
 
         safe_void_coroutine _OpenHyperlinkHandler(const IInspectable sender, const Microsoft::Terminal::Control::OpenHyperlinkEventArgs eventArgs);
         static bool _IsUriSupported(const winrt::Windows::Foundation::Uri& parsedUri);
@@ -437,9 +487,6 @@ namespace winrt::TerminalApp::implementation
         safe_void_coroutine _ControlNoticeRaisedHandler(const IInspectable sender, const Microsoft::Terminal::Control::NoticeEventArgs eventArgs);
         void _ShowControlNoticeDialog(const winrt::hstring& title, const winrt::hstring& message);
 
-        safe_void_coroutine _ControlDragDropHandler(Windows::Foundation::IInspectable sender, Windows::UI::Xaml::DragEventArgs e);
-        void _ControlDragOverHandler(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::DragEventArgs& e);
-
         safe_void_coroutine _LaunchSettings(const Microsoft::Terminal::Settings::Model::SettingsTarget target);
 
         void _TabDragStarted(const IInspectable& sender, const IInspectable& eventArgs);
@@ -566,6 +613,7 @@ namespace winrt::TerminalApp::implementation
 
         void _PopulateContextMenu(const Microsoft::Terminal::Control::TermControl& control, const Microsoft::UI::Xaml::Controls::CommandBarFlyout& sender, const bool withSelection);
         void _PopulateQuickFixMenu(const Microsoft::Terminal::Control::TermControl& control, const Windows::UI::Xaml::Controls::MenuFlyout& sender);
+        void _PopulateWorkspaceFlyout();
         winrt::Windows::UI::Xaml::Controls::MenuFlyout _CreateRunAsAdminFlyout(int profileIndex);
 
         winrt::Microsoft::Terminal::Control::TermControl _senderOrActiveControl(const winrt::Windows::Foundation::IInspectable& sender);
@@ -574,9 +622,7 @@ namespace winrt::TerminalApp::implementation
         void _activePaneChanged(winrt::TerminalApp::Tab tab, Windows::Foundation::IInspectable args);
         safe_void_coroutine _doHandleSuggestions(Microsoft::Terminal::Settings::Model::SuggestionsArgs realArgs);
 
-        using broadcast_group = til::small_vector<TerminalApp::TerminalPaneContent, 1>;
-        broadcast_group _getBroadcastGroupFromControl(const Microsoft::Terminal::Control::TermControl& control);
-        void _writeInputStringToBroadcastGroup(const broadcast_group& broadcastGroup, const winrt::hstring text, Microsoft::Terminal::Control::WriteInputStringType type);
+        void _SendDesktopNotification(const winrt::hstring& tabTitle, const winrt::hstring& body, const winrt::com_ptr<Tab>& tab, const winrt::TerminalApp::IPaneContent& content);
 
 #pragma region ActionHandlers
         // These are all defined in AppActionHandlers.cpp
@@ -594,4 +640,5 @@ namespace winrt::TerminalApp::implementation
 namespace winrt::TerminalApp::factory_implementation
 {
     BASIC_FACTORY(TerminalPage);
+    BASIC_FACTORY(WindowListEntry);
 }

src/cascadia/TerminalApp/TerminalPage.idl

@@ -19,6 +19,10 @@ namespace TerminalApp
     {
         String ProposedName { get; };
     };
+    [default_interface] runtimeclass SummonWindowByIdRequestedArgs
+    {
+        UInt64 WindowId { get; };
+    };
     [default_interface] runtimeclass RequestMoveContentArgs
     {
         String Window { get; };
@@ -50,6 +54,20 @@ namespace TerminalApp
         Microsoft.Terminal.Settings.Model.LaunchPosition Position;
     }
 
+    [default_interface] runtimeclass WindowListEntry
+    {
+        WindowListEntry();
+        UInt64 Id;
+        String Name;
+    }
+
+    // Raised by TerminalPage when it needs the list of open windows.
+    // The handler (AppHost) fills Entries synchronously.
+    [default_interface] runtimeclass WindowListRequest
+    {
+        Windows.Foundation.Collections.IVector<WindowListEntry> Entries { get; };
+    }
+
     [default_interface] runtimeclass TerminalPage : Windows.UI.Xaml.Controls.Page, Windows.UI.Xaml.Data.INotifyPropertyChanged, Microsoft.Terminal.UI.IDirectKeyListener
     {
         TerminalPage(WindowProperties properties, ContentManager manager);
@@ -93,6 +111,7 @@ namespace TerminalApp
         event Windows.Foundation.TypedEventHandler<Object, Object> IdentifyWindowsRequested;
         event Windows.Foundation.TypedEventHandler<Object, RenameWindowRequestedArgs> RenameWindowRequested;
         event Windows.Foundation.TypedEventHandler<Object, Object> SummonWindowRequested;
+        event Windows.Foundation.TypedEventHandler<Object, SummonWindowByIdRequestedArgs> SummonWindowByIdRequested;
         event Windows.Foundation.TypedEventHandler<Object, Microsoft.Terminal.Control.WindowSizeChangedEventArgs> WindowSizeChanged;
 
         event Windows.Foundation.TypedEventHandler<Object, Object> OpenSystemMenu;
@@ -103,5 +122,6 @@ namespace TerminalApp
         event Windows.Foundation.TypedEventHandler<Object, RequestReceiveContentArgs> RequestReceiveContent;
 
         event Windows.Foundation.TypedEventHandler<Object, LaunchPositionRequest> RequestLaunchPosition;
+        event Windows.Foundation.TypedEventHandler<Object, WindowListRequest> RequestWindowList;
     }
 }

src/cascadia/TerminalApp/TerminalPage.xaml

@@ -86,17 +86,12 @@
                            Grid.Row="2"
                            x:Load="False" />
 
-        <ContentDialog x:Name="QuitDialog"
-                       x:Uid="QuitDialog"
+        <ContentDialog x:Name="ConfirmCloseDialog"
                        Grid.Row="2"
                        x:Load="False"
-                       DefaultButton="Primary" />
-
-        <ContentDialog x:Name="CloseAllDialog"
-                       x:Uid="CloseAllDialog"
-                       Grid.Row="2"
-                       x:Load="False"
-                       DefaultButton="Primary" />
+                       DefaultButton="Primary">
+            <CheckBox x:Uid="DontAskAgainCheckBox" />
+        </ContentDialog>
 
         <ContentDialog x:Name="CloseReadOnlyDialog"
                        x:Uid="CloseReadOnlyDialog"

src/cascadia/TerminalApp/TerminalPaneContent.cpp

@@ -10,6 +10,7 @@
 #include "../../types/inc/utils.hpp"
 
 #include "BellEventArgs.g.cpp"
+#include "NotificationEventArgs.g.cpp"
 #include "TerminalPaneContent.g.cpp"
 
 using namespace winrt::Windows::Foundation;
@@ -20,8 +21,6 @@ using namespace winrt::Microsoft::Terminal::TerminalConnection;
 
 namespace winrt::TerminalApp::implementation
 {
-    til::shared_mutex<std::unordered_map<void*, winrt::weak_ref<TerminalApp::implementation::TerminalPaneContent>>> TerminalPaneContent::_controlToContentMap{};
-
     TerminalPaneContent::TerminalPaneContent(const winrt::Microsoft::Terminal::Settings::Model::Profile& profile,
                                              const std::shared_ptr<TerminalSettingsCache>& cache,
                                              const winrt::Microsoft::Terminal::Control::TermControl& control) :
@@ -30,15 +29,13 @@ namespace winrt::TerminalApp::implementation
         _profile{ profile }
     {
         _setupControlEvents();
-
-        auto map{ _controlToContentMap.lock() };
-        map->insert_or_assign(winrt::get_abi(control), get_weak());
     }
 
     void TerminalPaneContent::_setupControlEvents()
     {
         _controlEvents._ConnectionStateChanged = _control.ConnectionStateChanged(winrt::auto_revoke, { this, &TerminalPaneContent::_controlConnectionStateChangedHandler });
         _controlEvents._WarningBell = _control.WarningBell(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlWarningBellHandler });
+        _controlEvents._PromptStarted = _control.PromptStarted(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlPromptStartedHandler });
         _controlEvents._CloseTerminalRequested = _control.CloseTerminalRequested(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_closeTerminalRequestedHandler });
         _controlEvents._RestartTerminalRequested = _control.RestartTerminalRequested(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_restartTerminalRequestedHandler });
 
@@ -47,6 +44,8 @@ namespace winrt::TerminalApp::implementation
         _controlEvents._SetTaskbarProgress = _control.SetTaskbarProgress(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlSetTaskbarProgress });
         _controlEvents._ReadOnlyChanged = _control.ReadOnlyChanged(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlReadOnlyChanged });
         _controlEvents._FocusFollowMouseRequested = _control.FocusFollowMouseRequested(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlFocusFollowMouseRequested });
+        _controlEvents._OutputBurstEnded = _control.OutputIdle(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlOutputBurstEndedHandler });
+        _controlEvents._ShowNotification = _control.ShowNotification(winrt::auto_revoke, { get_weak(), &TerminalPaneContent::_controlShowNotification });
     }
     void TerminalPaneContent::_removeControlEvents()
     {
@@ -77,11 +76,6 @@ namespace winrt::TerminalApp::implementation
 
         _control.Close();
 
-        {
-            auto map{ _controlToContentMap.lock() };
-            map->erase(winrt::get_abi(_control));
-        }
-
         // Clear out our media player callbacks, and stop any playing media. This
         // will prevent the callback from being triggered after we've closed, and
         // also make sure that our sound stops when we're closed.
@@ -183,6 +177,16 @@ namespace winrt::TerminalApp::implementation
     {
         TaskbarProgressChanged.raise(*this, nullptr);
     }
+
+    winrt::Microsoft::Terminal::Control::TaskbarState TerminalPaneContent::TaskbarState()
+    {
+        return _control.TaskbarState();
+    }
+
+    uint64_t TerminalPaneContent::TaskbarProgress()
+    {
+        return _control.TaskbarProgress();
+    }
     void TerminalPaneContent::_controlReadOnlyChanged(const IInspectable&, const IInspectable&)
     {
         ReadOnlyChanged.raise(*this, nullptr);
@@ -192,6 +196,11 @@ namespace winrt::TerminalApp::implementation
         FocusRequested.raise(*this, nullptr);
     }
 
+    void TerminalPaneContent::_controlShowNotification(const IInspectable& /*sender*/, const ShowNotificationEventArgs& args)
+    {
+        NotificationRequested.raise(*this, winrt::make<implementation::NotificationEventArgs>(OutputNotificationStyle::Notification, true, args.Title(), args.Body()));
+    }
+
     // Method Description:
     // - Called when our attached control is closed. Triggers listeners to our close
     //   event, if we're a leaf pane.
@@ -271,6 +280,25 @@ namespace winrt::TerminalApp::implementation
     //   has the 'visual' flag set
     // Arguments:
     // - <unused>
+    void TerminalPaneContent::PlayNotificationSound()
+    {
+        if (_profile)
+        {
+            auto sounds{ _profile.BellSound() };
+            if (sounds && sounds.Size() > 0)
+            {
+                winrt::hstring soundPath{ sounds.GetAt(rand() % sounds.Size()).Resolved() };
+                winrt::Windows::Foundation::Uri uri{ soundPath };
+                _playBellSound(uri);
+            }
+            else
+            {
+                const auto soundAlias = reinterpret_cast<LPCTSTR>(SND_ALIAS_SYSTEMHAND);
+                PlaySound(soundAlias, NULL, SND_ALIAS_ID | SND_ASYNC | SND_SENTRY);
+            }
+        }
+    }
+
     void TerminalPaneContent::_controlWarningBellHandler(const winrt::Windows::Foundation::IInspectable& /*sender*/,
                                                          const winrt::Windows::Foundation::IInspectable& /*eventArgs*/)
     {
@@ -282,18 +310,7 @@ namespace winrt::TerminalApp::implementation
                 if (WI_IsFlagSet(_profile.BellStyle(), winrt::Microsoft::Terminal::Settings::Model::BellStyle::Audible))
                 {
                     // Audible is set, play the sound
-                    auto sounds{ _profile.BellSound() };
-                    if (sounds && sounds.Size() > 0)
-                    {
-                        winrt::hstring soundPath{ sounds.GetAt(rand() % sounds.Size()).Resolved() };
-                        winrt::Windows::Foundation::Uri uri{ soundPath };
-                        _playBellSound(uri);
-                    }
-                    else
-                    {
-                        const auto soundAlias = reinterpret_cast<LPCTSTR>(SND_ALIAS_SYSTEMHAND);
-                        PlaySound(soundAlias, NULL, SND_ALIAS_ID | SND_ASYNC | SND_SENTRY);
-                    }
+                    PlayNotificationSound();
                 }
 
                 if (WI_IsFlagSet(_profile.BellStyle(), winrt::Microsoft::Terminal::Settings::Model::BellStyle::Window))
@@ -301,9 +318,43 @@ namespace winrt::TerminalApp::implementation
                     _control.BellLightOn();
                 }
 
-                // raise the event with the bool value corresponding to the taskbar flag
+                // raise the event with the bool values corresponding to the taskbar and notification flags
                 BellRequested.raise(*this,
-                                    *winrt::make_self<TerminalApp::implementation::BellEventArgs>(WI_IsFlagSet(_profile.BellStyle(), BellStyle::Taskbar)));
+                                    *winrt::make_self<TerminalApp::implementation::BellEventArgs>(
+                                        WI_IsFlagSet(_profile.BellStyle(), BellStyle::Taskbar),
+                                        WI_IsFlagSet(_profile.BellStyle(), BellStyle::Notification)));
+            }
+        }
+    }
+
+    void TerminalPaneContent::_controlPromptStartedHandler(const winrt::Windows::Foundation::IInspectable& /*sender*/,
+                                                           const winrt::Windows::Foundation::IInspectable& /*eventArgs*/)
+    {
+        if (_profile)
+        {
+            const auto notifyStyle = _profile.NotifyOnNextPrompt();
+            if (notifyStyle != OutputNotificationStyle::None)
+            {
+                NotificationRequested.raise(*this,
+                                            *winrt::make_self<TerminalApp::implementation::NotificationEventArgs>(notifyStyle, false));
+            }
+        }
+    }
+
+    // The underlying TermControl::OutputIdle event is fired on the trailing
+    // edge of a 100ms-debounced output burst (see ControlCore::Initialize).
+    // When "notifyOnActivity" is enabled, we get one event per burst of
+    // output, which naturally coalesces a stream of output into a single notification.
+    void TerminalPaneContent::_controlOutputBurstEndedHandler(const winrt::Windows::Foundation::IInspectable& /*sender*/,
+                                                              const winrt::Windows::Foundation::IInspectable& /*eventArgs*/)
+    {
+        if (_profile)
+        {
+            const auto notifyStyle = _profile.NotifyOnActivity();
+            if (notifyStyle != OutputNotificationStyle::None)
+            {
+                NotificationRequested.raise(*this,
+                                            *winrt::make_self<TerminalApp::implementation::NotificationEventArgs>(notifyStyle, false));
             }
         }
     }
@@ -381,14 +432,4 @@ namespace winrt::TerminalApp::implementation
     {
         return _control.CharacterDimensions();
     }
-
-    TerminalApp::TerminalPaneContent TerminalPaneContent::ContentFromControl(const winrt::Microsoft::Terminal::Control::TermControl& control)
-    {
-        const auto map{ _controlToContentMap.lock_shared() };
-        if (auto found{ map->find(winrt::get_abi(control)) }; found != map->end())
-        {
-            return *found->second.get();
-        }
-        return { nullptr };
-    }
 }

src/cascadia/TerminalApp/TerminalPaneContent.h

@@ -4,6 +4,7 @@
 #pragma once
 #include "TerminalPaneContent.g.h"
 #include "BellEventArgs.g.h"
+#include "NotificationEventArgs.g.h"
 #include "BasicPaneEvents.h"
 
 namespace winrt::TerminalApp::implementation
@@ -13,10 +14,23 @@ namespace winrt::TerminalApp::implementation
     struct BellEventArgs : public BellEventArgsT<BellEventArgs>
     {
     public:
-        BellEventArgs(bool flashTaskbar) :
-            FlashTaskbar(flashTaskbar) {}
+        BellEventArgs(bool flashTaskbar, bool sendNotification) :
+            FlashTaskbar(flashTaskbar), SendNotification(sendNotification) {}
 
         til::property<bool> FlashTaskbar;
+        til::property<bool> SendNotification;
+    };
+
+    struct NotificationEventArgs : public NotificationEventArgsT<NotificationEventArgs>
+    {
+    public:
+        NotificationEventArgs(winrt::Microsoft::Terminal::Control::OutputNotificationStyle style, bool alwaysNotify = true, const winrt::hstring& title = {}, const winrt::hstring& body = {}) :
+            Style(style), AlwaysNotify(alwaysNotify), Title(title), Body(body) {}
+
+        til::property<winrt::Microsoft::Terminal::Control::OutputNotificationStyle> Style;
+        til::property<bool> AlwaysNotify;
+        til::property<winrt::hstring> Title;
+        til::property<winrt::hstring> Body;
     };
 
     struct TerminalPaneContent : TerminalPaneContentT<TerminalPaneContent>, BasicPaneEvents
@@ -36,6 +50,7 @@ namespace winrt::TerminalApp::implementation
         void UpdateSettings(const winrt::Microsoft::Terminal::Settings::Model::CascadiaSettings& settings);
 
         void MarkAsDefterm();
+        void PlayNotificationSound();
 
         winrt::Microsoft::Terminal::Settings::Model::Profile GetProfile() const
         {
@@ -43,8 +58,8 @@ namespace winrt::TerminalApp::implementation
         }
 
         winrt::hstring Title() { return _control.Title(); }
-        uint64_t TaskbarState() { return _control.TaskbarState(); }
-        uint64_t TaskbarProgress() { return _control.TaskbarProgress(); }
+        winrt::Microsoft::Terminal::Control::TaskbarState TaskbarState();
+        uint64_t TaskbarProgress();
         bool ReadOnly() { return _control.ReadOnly(); }
         winrt::hstring Icon() const;
         Windows::Foundation::IReference<winrt::Windows::UI::Color> TabColor() const noexcept;
@@ -55,13 +70,9 @@ namespace winrt::TerminalApp::implementation
 
         til::typed_event<TerminalApp::TerminalPaneContent, winrt::Windows::Foundation::IInspectable> RestartTerminalRequested;
 
-        static TerminalApp::TerminalPaneContent ContentFromControl(const winrt::Microsoft::Terminal::Control::TermControl& control);
-
         // See BasicPaneEvents for most generic event definitions
 
     private:
-        static til::shared_mutex<std::unordered_map<void*, winrt::weak_ref<TerminalApp::implementation::TerminalPaneContent>>> _controlToContentMap;
-
         winrt::Microsoft::Terminal::Control::TermControl _control{ nullptr };
         winrt::Microsoft::Terminal::TerminalConnection::ConnectionState _connectionState{ winrt::Microsoft::Terminal::TerminalConnection::ConnectionState::NotConnected };
         winrt::Microsoft::Terminal::Settings::Model::Profile _profile{ nullptr };
@@ -75,6 +86,8 @@ namespace winrt::TerminalApp::implementation
         {
             winrt::Microsoft::Terminal::Control::TermControl::ConnectionStateChanged_revoker _ConnectionStateChanged;
             winrt::Microsoft::Terminal::Control::TermControl::WarningBell_revoker _WarningBell;
+            winrt::Microsoft::Terminal::Control::TermControl::PromptStarted_revoker _PromptStarted;
+            winrt::Microsoft::Terminal::Control::TermControl::OutputIdle_revoker _OutputBurstEnded;
             winrt::Microsoft::Terminal::Control::TermControl::CloseTerminalRequested_revoker _CloseTerminalRequested;
             winrt::Microsoft::Terminal::Control::TermControl::RestartTerminalRequested_revoker _RestartTerminalRequested;
 
@@ -83,6 +96,7 @@ namespace winrt::TerminalApp::implementation
             winrt::Microsoft::Terminal::Control::TermControl::SetTaskbarProgress_revoker _SetTaskbarProgress;
             winrt::Microsoft::Terminal::Control::TermControl::ReadOnlyChanged_revoker _ReadOnlyChanged;
             winrt::Microsoft::Terminal::Control::TermControl::FocusFollowMouseRequested_revoker _FocusFollowMouseRequested;
+            winrt::Microsoft::Terminal::Control::TermControl::ShowNotification_revoker _ShowNotification;
 
         } _controlEvents;
         void _setupControlEvents();
@@ -93,6 +107,8 @@ namespace winrt::TerminalApp::implementation
         safe_void_coroutine _controlConnectionStateChangedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& /*args*/);
         void _controlWarningBellHandler(const winrt::Windows::Foundation::IInspectable& sender,
                                         const winrt::Windows::Foundation::IInspectable& e);
+        void _controlPromptStartedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& eventArgs);
+        void _controlOutputBurstEndedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& eventArgs);
         void _controlReadOnlyChangedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& e);
 
         void _controlTitleChanged(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& args);
@@ -100,6 +116,7 @@ namespace winrt::TerminalApp::implementation
         void _controlSetTaskbarProgress(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& args);
         void _controlReadOnlyChanged(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& args);
         void _controlFocusFollowMouseRequested(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& args);
+        void _controlShowNotification(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Microsoft::Terminal::Control::ShowNotificationEventArgs& args);
 
         void _closeTerminalRequestedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& /*args*/);
         void _restartTerminalRequestedHandler(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::Foundation::IInspectable& /*args*/);

src/cascadia/TerminalApp/TerminalPaneContent.idl

@@ -11,6 +11,7 @@ namespace TerminalApp
         Microsoft.Terminal.Control.TermControl GetTermControl();
 
         void MarkAsDefterm();
+        void PlayNotificationSound();
 
         Microsoft.Terminal.Settings.Model.Profile GetProfile();
 

src/cascadia/TerminalApp/TerminalTabStatus.h

@@ -17,6 +17,7 @@ namespace winrt::TerminalApp::implementation
         WINRT_OBSERVABLE_PROPERTY(bool, IsProgressRingActive, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(bool, IsProgressRingIndeterminate, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(bool, BellIndicator, PropertyChanged.raise);
+        WINRT_OBSERVABLE_PROPERTY(bool, ActivityIndicator, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(bool, IsReadOnlyActive, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(uint32_t, ProgressValue, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(bool, IsInputBroadcastActive, PropertyChanged.raise);

src/cascadia/TerminalApp/TerminalTabStatus.idl

@@ -12,6 +12,7 @@ namespace TerminalApp
         Boolean IsProgressRingActive { get; set; };
         Boolean IsProgressRingIndeterminate { get; set; };
         Boolean BellIndicator { get; set; };
+        Boolean ActivityIndicator { get; set; };
         UInt32 ProgressValue { get; set; };
         Boolean IsReadOnlyActive { get; set; };
         Boolean IsInputBroadcastActive { get; set; };

src/cascadia/TerminalApp/TerminalWindow.cpp

@@ -108,13 +108,19 @@ static Documents::Run _BuildErrorRun(const winrt::hstring& text, const ResourceD
     Documents::Run textRun;
     textRun.Text(text);
 
-    // Color the text red (light theme) or yellow (dark theme) based on the system theme
-    auto key = winrt::box_value(L"ErrorTextBrush");
-    if (resources.HasKey(key))
+    // GH #18147 - In High Contrast mode, don't override the foreground.
+    // Let the text inherit the system HC text color from its parent element,
+    // since SystemErrorTextColor doesn't adapt to High Contrast themes.
+    if (!winrt::Windows::UI::ViewManagement::AccessibilitySettings{}.HighContrast())
     {
-        auto g = resources.Lookup(key);
-        auto brush = g.try_as<winrt::Windows::UI::Xaml::Media::Brush>();
-        textRun.Foreground(brush);
+        // Color the text red (light theme) or yellow (dark theme) based on the system theme
+        auto key = winrt::box_value(L"ErrorTextBrush");
+        if (resources.HasKey(key))
+        {
+            auto g = resources.Lookup(key);
+            auto brush = g.try_as<winrt::Windows::UI::Xaml::Media::Brush>();
+            textRun.Foreground(brush);
+        }
     }
 
     return textRun;
@@ -252,6 +258,15 @@ namespace winrt::TerminalApp::implementation
         AppLogic::Current()->NotifyRootInitialized();
     }
 
+    WindowLayout TerminalWindow::GetWindowLayout()
+    {
+        if (_root)
+        {
+            return _root->GetWindowLayout();
+        }
+        return nullptr;
+    }
+
     void TerminalWindow::PersistState()
     {
         if (_root)
@@ -1097,6 +1112,11 @@ namespace winrt::TerminalApp::implementation
         _initialContentArgs = wil::to_vector(args);
     }
 
+    void TerminalWindow::SetPersistedLayout(const winrt::Microsoft::Terminal::Settings::Model::WindowLayout& layout)
+    {
+        _cachedLayout = layout;
+    }
+
     // Method Description:
     // - Parse the provided commandline arguments into actions, and try to
     //   perform them immediately.
@@ -1205,10 +1225,26 @@ namespace winrt::TerminalApp::implementation
         }
     }
 
+    bool TerminalWindow::FocusTab(const winrt::TerminalApp::Tab& tab)
+    {
+        if (_root)
+        {
+            return _root->FocusTab(tab);
+        }
+        return false;
+    }
+
     void TerminalWindow::WindowName(const winrt::hstring& name)
     {
         const auto oldIsQuakeMode = _WindowProperties->IsQuakeWindow();
+        const auto oldName = _WindowProperties->WindowName();
         _WindowProperties->WindowName(name);
+        // If this window had a persisted workspace under the old name, rename
+        // that entry too so we don't leave a stale copy behind.
+        if (!oldName.empty() && !name.empty() && oldName != name)
+        {
+            ApplicationState::SharedInstance().RenameWorkspace(oldName, name);
+        }
         if (!_root)
         {
             return;

src/cascadia/TerminalApp/TerminalWindow.h

@@ -71,6 +71,7 @@ namespace winrt::TerminalApp::implementation
 
         void Create();
 
+        winrt::Microsoft::Terminal::Settings::Model::WindowLayout GetWindowLayout();
         void PersistState();
 
         void UpdateSettings(winrt::TerminalApp::SettingsLoadEventArgs args);
@@ -79,6 +80,7 @@ namespace winrt::TerminalApp::implementation
 
         int32_t SetStartupCommandline(TerminalApp::CommandlineArgs args);
         void SetStartupContent(const winrt::hstring& content, const Windows::Foundation::IReference<Windows::Foundation::Rect>& contentBounds);
+        void SetPersistedLayout(const winrt::Microsoft::Terminal::Settings::Model::WindowLayout& layout);
         int32_t ExecuteCommandline(TerminalApp::CommandlineArgs args);
         void SetSettingsStartupArgs(const std::vector<winrt::Microsoft::Terminal::Settings::Model::ActionAndArgs>& actions);
 
@@ -92,6 +94,7 @@ namespace winrt::TerminalApp::implementation
         bool ShowTabsFullscreen() const;
         bool AutoHideWindow();
         void IdentifyWindow();
+        bool FocusTab(const winrt::TerminalApp::Tab& tab);
 
         std::optional<uint32_t> LoadPersistedLayoutIdx() const;
         winrt::Microsoft::Terminal::Settings::Model::WindowLayout LoadPersistedLayout();
@@ -221,6 +224,8 @@ namespace winrt::TerminalApp::implementation
         FORWARDED_TYPED_EVENT(SetTaskbarProgress, winrt::Windows::Foundation::IInspectable, winrt::Windows::Foundation::IInspectable, _root, SetTaskbarProgress);
         FORWARDED_TYPED_EVENT(IdentifyWindowsRequested, Windows::Foundation::IInspectable, Windows::Foundation::IInspectable, _root, IdentifyWindowsRequested);
         FORWARDED_TYPED_EVENT(SummonWindowRequested, Windows::Foundation::IInspectable, Windows::Foundation::IInspectable, _root, SummonWindowRequested);
+        FORWARDED_TYPED_EVENT(SummonWindowByIdRequested, Windows::Foundation::IInspectable, winrt::TerminalApp::SummonWindowByIdRequestedArgs, _root, SummonWindowByIdRequested);
+        FORWARDED_TYPED_EVENT(FocusTabRequested, Windows::Foundation::IInspectable, winrt::TerminalApp::Tab, _root, FocusTabRequested);
         FORWARDED_TYPED_EVENT(OpenSystemMenu, Windows::Foundation::IInspectable, Windows::Foundation::IInspectable, _root, OpenSystemMenu);
         FORWARDED_TYPED_EVENT(QuitRequested, Windows::Foundation::IInspectable, Windows::Foundation::IInspectable, _root, QuitRequested);
         FORWARDED_TYPED_EVENT(ShowWindowChanged, Windows::Foundation::IInspectable, winrt::Microsoft::Terminal::Control::ShowWindowArgs, _root, ShowWindowChanged);
@@ -229,6 +234,7 @@ namespace winrt::TerminalApp::implementation
         FORWARDED_TYPED_EVENT(RequestReceiveContent, Windows::Foundation::IInspectable, winrt::TerminalApp::RequestReceiveContentArgs, _root, RequestReceiveContent);
 
         FORWARDED_TYPED_EVENT(RequestLaunchPosition, Windows::Foundation::IInspectable, winrt::TerminalApp::LaunchPositionRequest, _root, RequestLaunchPosition);
+        FORWARDED_TYPED_EVENT(RequestWindowList, Windows::Foundation::IInspectable, winrt::TerminalApp::WindowListRequest, _root, RequestWindowList);
 
 #ifdef UNIT_TESTING
         friend class TerminalAppLocalTests::CommandlineTest;

src/cascadia/TerminalApp/TerminalWindow.idl

@@ -4,6 +4,7 @@
 import "IPaneContent.idl";
 import "TerminalPage.idl";
 import "ShortcutActionDispatch.idl";
+import "Tab.idl";
 
 namespace TerminalApp
 {
@@ -55,11 +56,13 @@ namespace TerminalApp
 
         Int32 SetStartupCommandline(CommandlineArgs args);
         void SetStartupContent(String json, Windows.Foundation.IReference<Windows.Foundation.Rect> bounds);
+        void SetPersistedLayout(Microsoft.Terminal.Settings.Model.WindowLayout layout);
         Int32 ExecuteCommandline(CommandlineArgs args);
 
         Boolean ShouldImmediatelyHandoffToElevated();
         void HandoffToElevated();
 
+        Microsoft.Terminal.Settings.Model.WindowLayout GetWindowLayout();
         void PersistState();
 
         Windows.UI.Xaml.UIElement GetRoot();
@@ -74,6 +77,7 @@ namespace TerminalApp
         Boolean ShowTabsFullscreen { get; };
 
         void IdentifyWindow();
+        Boolean FocusTab(TerminalApp.Tab tab);
         void SetPersistedLayoutIdx(UInt32 idx);
         void RequestExitFullscreen();
 
@@ -126,6 +130,8 @@ namespace TerminalApp
         event Windows.Foundation.TypedEventHandler<Object, Object> IdentifyWindowsRequested;
         event Windows.Foundation.TypedEventHandler<Object, Object> IsQuakeWindowChanged;
         event Windows.Foundation.TypedEventHandler<Object, Object> SummonWindowRequested;
+        event Windows.Foundation.TypedEventHandler<Object, SummonWindowByIdRequestedArgs> SummonWindowByIdRequested;
+        event Windows.Foundation.TypedEventHandler<Object, TerminalApp.Tab> FocusTabRequested;
         event Windows.Foundation.TypedEventHandler<Object, Object> OpenSystemMenu;
         event Windows.Foundation.TypedEventHandler<Object, Object> QuitRequested;
         event Windows.Foundation.TypedEventHandler<Object, TerminalApp.SystemMenuChangeArgs> SystemMenuChangeRequested;
@@ -137,6 +143,7 @@ namespace TerminalApp
         event Windows.Foundation.TypedEventHandler<Object, RequestMoveContentArgs> RequestMoveContent;
         event Windows.Foundation.TypedEventHandler<Object, RequestReceiveContentArgs> RequestReceiveContent;
         event Windows.Foundation.TypedEventHandler<Object, LaunchPositionRequest> RequestLaunchPosition;
+        event Windows.Foundation.TypedEventHandler<Object, WindowListRequest> RequestWindowList;
 
         void AttachContent(String content, UInt32 tabIndex);
         void SendContentToOther(RequestReceiveContentArgs args);

src/cascadia/TerminalApp/pch.h

@@ -34,7 +34,6 @@
 #include <winrt/Windows.Globalization.h>
 #include <winrt/Windows.Graphics.Display.h>
 #include <winrt/Windows.System.h>
-#include <winrt/Windows.Storage.Streams.h>
 #include <winrt/Windows.UI.Core.h>
 #include <winrt/Windows.UI.Input.h>
 #include <winrt/Windows.UI.Text.h>
@@ -55,6 +54,9 @@
 #include <winrt/Windows.Media.Playback.h>
 #include <winrt/Windows.Management.Deployment.h>
 
+#include <winrt/Windows.UI.Notifications.h>
+#include <winrt/Windows.Data.Xml.Dom.h>
+
 #include <winrt/Microsoft.UI.Xaml.Controls.h>
 #include <winrt/Microsoft.UI.Xaml.Controls.Primitives.h>
 #include <winrt/Microsoft.UI.Xaml.XamlTypeInfo.h>
@@ -89,7 +91,6 @@ TRACELOGGING_DECLARE_PROVIDER(g_hTerminalAppProvider);
 
 // Manually include til after we include Windows.Foundation to give it winrt superpowers
 #include "til.h"
-#include <til/mutex.h>
 #include <til/winrt.h>
 
 #include <SafeDispatcherTimer.h>

src/cascadia/TerminalControl/ControlCore.cpp

@@ -139,6 +139,15 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         auto pfnSearchMissingCommand = [this](auto&& PH1, auto&& PH2) { _terminalSearchMissingCommand(std::forward<decltype(PH1)>(PH1), std::forward<decltype(PH2)>(PH2)); };
         _terminal->SetSearchMissingCommandCallback(pfnSearchMissingCommand);
 
+        auto pfnPromptStarted = [this] { _terminalPromptStarted(); };
+        _terminal->SetPromptStartedCallback(pfnPromptStarted);
+
+        auto pfnOutputStarted = [this] { _terminalOutputStarted(); };
+        _terminal->SetOutputStartedCallback(pfnOutputStarted);
+        
+        auto pfnShowNotification = [this](auto&& PH1, auto&& PH2) { _terminalShowNotification(std::forward<decltype(PH1)>(PH1), std::forward<decltype(PH2)>(PH2)); };
+        _terminal->SetShowNotificationCallback(pfnShowNotification);
+
         auto pfnClearQuickFix = [this] { ClearQuickFix(); };
         _terminal->SetClearQuickFixCallback(pfnClearQuickFix);
 
@@ -498,7 +507,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - wstr: the string of characters to write to the terminal connection.
     // Return Value:
     // - <none>
-    void ControlCore::_sendInput(const std::wstring_view wstr)
+    void ControlCore::SendInput(const std::wstring_view wstr)
     {
         if (wstr.empty())
         {
@@ -554,7 +563,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         }
         if (out)
         {
-            _sendInput(*out);
+            SendInput(*out);
             return true;
         }
         return false;
@@ -712,7 +721,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         }
         if (out)
         {
-            _sendInput(*out);
+            SendInput(*out);
             return true;
         }
         return false;
@@ -731,7 +740,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         }
         if (out)
         {
-            _sendInput(*out);
+            SendInput(*out);
             return true;
         }
         return false;
@@ -913,6 +922,17 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         _hasUnfocusedAppearance = static_cast<bool>(newAppearance);
         _unfocusedAppearance = _hasUnfocusedAppearance ? newAppearance : settings;
 
+        // Cache the auto-detect setting in an atomic so the off-thread output/prompt
+        // callbacks can read it without synchronizing with _settings. If the effective
+        // taskbar state changes (because a command is currently active and the setting
+        // toggled), notify listeners.
+        const auto nowEnabled = _settings.AutoDetectRunningCommand();
+        const auto wasEnabled = _autoDetectCommandActivity.exchange(nowEnabled, std::memory_order_relaxed);
+        if (wasEnabled != nowEnabled && _commandActive.load(std::memory_order_relaxed))
+        {
+            TaskbarProgressChanged.raise(*this, nullptr);
+        }
+
         const auto lock = _terminal->LockForWriting();
 
         _builtinGlyphs = _settings.EnableBuiltinGlyphs();
@@ -1451,34 +1471,24 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // Method Description:
     // - Pre-process text pasted (presumably from the clipboard)
     //   before sending it over the terminal's connection.
-    void ControlCore::WriteInputString(const std::wstring_view& str, WriteInputStringType type)
+    void ControlCore::PasteText(const winrt::hstring& hstr)
     {
-        switch (type)
+        using namespace ::Microsoft::Console::Utils;
+
+        auto filtered = FilterStringForPaste(hstr, CarriageReturnNewline | ControlCodes);
+        if (BracketedPasteEnabled())
         {
-        case WriteInputStringType::Clipboard:
-        {
-            using namespace ::Microsoft::Console::Utils;
-
-            auto filtered = FilterStringForPaste(str, CarriageReturnNewline | ControlCodes);
-            if (BracketedPasteEnabled())
-            {
-                filtered.insert(0, L"\x1b[200~");
-                filtered.append(L"\x1b[201~");
-            }
-
-            // It's important to not hold the terminal lock while calling this function as sending the data may take a long time.
-            _sendInput(filtered);
-
-            const auto lock = _terminal->LockForWriting();
-            _terminal->ClearSelection();
-            _updateSelectionUI();
-            _terminal->TrySnapOnInput();
-            return;
-        }
-        case WriteInputStringType::Raw:
-            _sendInput(str);
-            return;
+            filtered.insert(0, L"\x1b[200~");
+            filtered.append(L"\x1b[201~");
         }
+
+        // It's important to not hold the terminal lock while calling this function as sending the data may take a long time.
+        SendInput(filtered);
+
+        const auto lock = _terminal->LockForWriting();
+        _terminal->ClearSelection();
+        _updateSelectionUI();
+        _terminal->TrySnapOnInput();
     }
 
     FontInfo ControlCore::GetFont() const
@@ -1557,10 +1567,17 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - Gets the internal taskbar state value
     // Return Value:
     // - The taskbar state of this control
-    const size_t ControlCore::TaskbarState() const noexcept
+    const Control::TaskbarState ControlCore::TaskbarState() const noexcept
     {
         const auto lock = _terminal->LockForReading();
-        return _terminal->GetTaskbarState();
+        const auto vtState = static_cast<Control::TaskbarState>(_terminal->GetTaskbarState());
+        if (vtState == Control::TaskbarState::Clear &&
+            _autoDetectCommandActivity.load(std::memory_order_relaxed) &&
+            _commandActive.load(std::memory_order_relaxed))
+        {
+            return Control::TaskbarState::Indeterminate;
+        }
+        return vtState;
     }
 
     // Method Description:
@@ -1590,6 +1607,17 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         return _terminal->GetViewport().Height();
     }
 
+    // Function Description:
+    // - Gets the width of the terminal in columns. This is just the
+    //   width of the viewport.
+    // Return Value:
+    // - The width of the terminal in columns
+    int ControlCore::ViewWidth() const
+    {
+        const auto lock = _terminal->LockForReading();
+        return _terminal->GetViewport().Width();
+    }
+
     // Function Description:
     // - Gets the height of the terminal in lines of text. This includes the
     //   history AND the viewport.
@@ -1609,6 +1637,26 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         WarningBell.raise(*this, nullptr);
     }
 
+    void ControlCore::_terminalPromptStarted()
+    {
+        if (_commandActive.exchange(false, std::memory_order_relaxed) &&
+            _autoDetectCommandActivity.load(std::memory_order_relaxed))
+        {
+            TaskbarProgressChanged.raise(*this, nullptr);
+        }
+        PromptStarted.raise(*this, nullptr);
+    }
+
+    void ControlCore::_terminalOutputStarted()
+    {
+        if (!_commandActive.exchange(true, std::memory_order_relaxed) &&
+            _autoDetectCommandActivity.load(std::memory_order_relaxed))
+        {
+            TaskbarProgressChanged.raise(*this, nullptr);
+        }
+        OutputStarted.raise(*this, nullptr);
+    }
+
     // Method Description:
     // - Called for the Terminal's TitleChanged callback. This will re-raise
     //   a new winrt TypedEvent that can be listened to.
@@ -1701,6 +1749,11 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         SearchMissingCommand.raise(*this, make<implementation::SearchMissingCommandEventArgs>(hstring{ missingCommand }, bufferRow));
     }
 
+    void ControlCore::_terminalShowNotification(std::wstring_view title, std::wstring_view body)
+    {
+        ShowNotification.raise(*this, make<implementation::ShowNotificationEventArgs>(hstring{ title }, hstring{ body }));
+    }
+
     void ControlCore::OpenCWD()
     {
         const auto workingDirectory = WorkingDirectory();
@@ -2207,7 +2260,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
                     // Sending input requires that we're unlocked, because
                     // writing the input pipe may block indefinitely.
                     const auto suspension = _terminal->SuspendLock();
-                    _sendInput(buffer);
+                    SendInput(buffer);
                 }
             }
         }
@@ -2348,6 +2401,13 @@ namespace winrt::Microsoft::Terminal::Control::implementation
             }
 
             _terminal->Write(sequence);
+
+            // Clear scroll marks so they don't remain stale in the scrollbar.
+            // The Scrollback case is already handled by the \x1b[3J path (TextBuffer::ClearScrollback).
+            if (clearType != ClearBufferType::Scrollback)
+            {
+                _terminal->ClearAllMarks();
+            }
         }
 
         if (clearType == Control::ClearBufferType::Screen || clearType == Control::ClearBufferType::All)

src/cascadia/TerminalControl/ControlCore.h

@@ -122,7 +122,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         til::color ForegroundColor() const;
         til::color BackgroundColor() const;
 
-        void WriteInputString(const std::wstring_view& str, WriteInputStringType type);
+        void SendInput(std::wstring_view wstr);
+        void PasteText(const winrt::hstring& hstr);
         bool CopySelectionToClipboard(bool singleLine, bool withControlSequences, const CopyFormat formats);
         void SelectAll();
         void ClearSelection();
@@ -160,7 +161,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void OpenCWD();
 
 #pragma region ICoreState
-        const size_t TaskbarState() const noexcept;
+        const Control::TaskbarState TaskbarState() const noexcept;
         const size_t TaskbarProgress() const noexcept;
 
         hstring Title();
@@ -171,6 +172,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
         int ScrollOffset();
         int ViewHeight() const;
+        int ViewWidth() const;
         int BufferHeight() const;
 
         bool HasSelection() const;
@@ -274,6 +276,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         til::typed_event<IInspectable, Control::TitleChangedEventArgs> TitleChanged;
         til::typed_event<IInspectable, Control::WriteToClipboardEventArgs> WriteToClipboard;
         til::typed_event<> WarningBell;
+        til::typed_event<> PromptStarted;
+        til::typed_event<> OutputStarted;
         til::typed_event<> TabColorChanged;
         til::typed_event<> BackgroundColorChanged;
         til::typed_event<IInspectable, Control::ScrollPositionChangedArgs> ScrollPositionChanged;
@@ -291,6 +295,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         til::typed_event<IInspectable, Control::OpenHyperlinkEventArgs> OpenHyperlink;
         til::typed_event<IInspectable, Control::CompletionsChangedEventArgs> CompletionsChanged;
         til::typed_event<IInspectable, Control::SearchMissingCommandEventArgs> SearchMissingCommand;
+        til::typed_event<IInspectable, Control::ShowNotificationEventArgs> ShowNotification;
         til::typed_event<> RefreshQuickFixUI;
         til::typed_event<IInspectable, Control::WindowSizeChangedEventArgs> WindowSizeChanged;
 
@@ -319,10 +324,11 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
         void _handleControlC();
         void _sendInputToConnection(std::wstring_view wstr);
-        void _sendInput(std::wstring_view wstr);
 
 #pragma region TerminalCoreCallbacks
         void _terminalWarningBell();
+        void _terminalPromptStarted();
+        void _terminalOutputStarted();
         void _terminalTitleChanged(std::wstring_view wstr);
         void _terminalScrollPositionChanged(const int viewTop,
                                             const int viewHeight,
@@ -333,6 +339,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
                                    const int velocity,
                                    const std::chrono::microseconds duration);
         void _terminalSearchMissingCommand(std::wstring_view missingCommand, const til::CoordType& bufferRow);
+        void _terminalShowNotification(std::wstring_view title, std::wstring_view body);
         void _terminalWindowSizeChanged(int32_t width, int32_t height);
 
         void _terminalCompletionsChanged(std::wstring_view menuJson, unsigned int replaceLength);
@@ -419,6 +426,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         std::optional<til::point> _lastHoveredCell;
         uint16_t _lastHoveredId{ 0 };
         std::atomic<bool> _initializedTerminal{ false };
+        std::atomic<bool> _autoDetectCommandActivity{ false };
+        std::atomic<bool> _commandActive{ false };
         bool _isReadOnly{ false };
         bool _closing{ false };
 

src/cascadia/TerminalControl/ControlCore.idl

@@ -68,14 +68,6 @@ namespace Microsoft.Terminal.Control
         Boolean SearchRegexInvalid;
     };
 
-    enum WriteInputStringType
-    {
-        // Text which is to be passed through unmodified.
-        Raw,
-        // Text which is to be treated as clipboard input, stripped and formatted according to the application's wishes.
-        Clipboard,
-    };
-
     [default_interface] runtimeclass SelectionColor
     {
         SelectionColor();
@@ -136,7 +128,8 @@ namespace Microsoft.Terminal.Control
         Boolean SendCharEvent(Char ch,
                               Int16 scanCode,
                               Microsoft.Terminal.Core.ControlKeyStates modifiers);
-        void WriteInputString(String text, WriteInputStringType type);
+        void SendInput(String text);
+        void PasteText(String text);
         void SelectAll();
         void ClearSelection();
         Boolean ToggleBlockSelection();
@@ -199,12 +192,15 @@ namespace Microsoft.Terminal.Control
         event Windows.Foundation.TypedEventHandler<Object, TitleChangedEventArgs> TitleChanged;
         event Windows.Foundation.TypedEventHandler<Object, WriteToClipboardEventArgs> WriteToClipboard;
         event Windows.Foundation.TypedEventHandler<Object, Object> WarningBell;
+        event Windows.Foundation.TypedEventHandler<Object, Object> PromptStarted;
+        event Windows.Foundation.TypedEventHandler<Object, Object> OutputStarted;
         event Windows.Foundation.TypedEventHandler<Object, Object> TabColorChanged;
         event Windows.Foundation.TypedEventHandler<Object, Object> BackgroundColorChanged;
         event Windows.Foundation.TypedEventHandler<Object, Object> TaskbarProgressChanged;
         event Windows.Foundation.TypedEventHandler<Object, Object> RendererEnteredErrorState;
         event Windows.Foundation.TypedEventHandler<Object, ShowWindowArgs> ShowWindowChanged;
         event Windows.Foundation.TypedEventHandler<Object, SearchMissingCommandEventArgs> SearchMissingCommand;
+        event Windows.Foundation.TypedEventHandler<Object, ShowNotificationEventArgs> ShowNotification;
         event Windows.Foundation.TypedEventHandler<Object, Object> RefreshQuickFixUI;
         event Windows.Foundation.TypedEventHandler<Object, WindowSizeChangedEventArgs> WindowSizeChanged;
 

src/cascadia/TerminalControl/ControlInteractivity.cpp

@@ -242,8 +242,14 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - Initiate a paste operation.
     void ControlInteractivity::RequestPasteTextFromClipboard()
     {
+        auto args = winrt::make<PasteFromClipboardEventArgs>(
+            [core = _core](const winrt::hstring& wstr) {
+                core->PasteText(wstr);
+            },
+            _core->BracketedPasteEnabled());
+
         // send paste event up to TermApp
-        PasteFromClipboard.raise(*this, nullptr);
+        PasteFromClipboard.raise(*this, std::move(args));
     }
 
     void ControlInteractivity::PointerPressed(const uint32_t /*pointerId*/,
@@ -303,8 +309,10 @@ namespace winrt::Microsoft::Terminal::Control::implementation
             const auto isOnOriginalPosition = _lastMouseClickPosNoSelection == pixelPosition;
 
             // Rounded coordinates for text selection.
-            // Don't round in VT mouse mode; cell-level precision matters more
-            const auto round = !_core->IsVtMouseModeEnabled();
+            // Don't round in VT mouse mode; cell-level precision matters more.
+            // Only round for single-click: for double/triple-click, rounding
+            // can push the position to the next cell, selecting the wrong word.
+            const auto round = multiClickMapper == 1 && !_core->IsVtMouseModeEnabled();
             _core->LeftClickOnTerminal(_getTerminalPosition(til::point{ pixelPosition }, round),
                                        multiClickMapper,
                                        altEnabled,

src/cascadia/TerminalControl/ControlInteractivity.h

@@ -92,7 +92,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void AttachToNewControl();
 
         til::typed_event<IInspectable, Control::OpenHyperlinkEventArgs> OpenHyperlink;
-        til::typed_event<IInspectable, IInspectable> PasteFromClipboard;
+        til::typed_event<IInspectable, Control::PasteFromClipboardEventArgs> PasteFromClipboard;
         til::typed_event<IInspectable, Control::ScrollPositionChangedArgs> ScrollPositionChanged;
         til::typed_event<IInspectable, Control::ContextMenuRequestedEventArgs> ContextMenuRequested;
 

src/cascadia/TerminalControl/ControlInteractivity.idl

@@ -68,7 +68,7 @@ namespace Microsoft.Terminal.Control
 
         event Windows.Foundation.TypedEventHandler<Object, OpenHyperlinkEventArgs> OpenHyperlink;
         event Windows.Foundation.TypedEventHandler<Object, ScrollPositionChangedArgs> ScrollPositionChanged;
-        event Windows.Foundation.TypedEventHandler<Object, Object> PasteFromClipboard;
+        event Windows.Foundation.TypedEventHandler<Object, PasteFromClipboardEventArgs> PasteFromClipboard;
 
         event Windows.Foundation.TypedEventHandler<Object, Object> Closed;
 

src/cascadia/TerminalControl/EventArgs.cpp

@@ -7,6 +7,7 @@
 #include "TitleChangedEventArgs.g.cpp"
 #include "ContextMenuRequestedEventArgs.g.cpp"
 #include "WriteToClipboardEventArgs.g.cpp"
+#include "PasteFromClipboardEventArgs.g.cpp"
 #include "OpenHyperlinkEventArgs.g.cpp"
 #include "NoticeEventArgs.g.cpp"
 #include "ScrollPositionChangedArgs.g.cpp"
@@ -17,5 +18,6 @@
 #include "CompletionsChangedEventArgs.g.cpp"
 #include "KeySentEventArgs.g.cpp"
 #include "CharSentEventArgs.g.cpp"
+#include "StringSentEventArgs.g.cpp"
 #include "SearchMissingCommandEventArgs.g.cpp"
 #include "WindowSizeChangedEventArgs.g.cpp"

src/cascadia/TerminalControl/EventArgs.h

@@ -7,6 +7,7 @@
 #include "TitleChangedEventArgs.g.h"
 #include "ContextMenuRequestedEventArgs.g.h"
 #include "WriteToClipboardEventArgs.g.h"
+#include "PasteFromClipboardEventArgs.g.h"
 #include "OpenHyperlinkEventArgs.g.h"
 #include "NoticeEventArgs.g.h"
 #include "ScrollPositionChangedArgs.g.h"
@@ -17,7 +18,9 @@
 #include "CompletionsChangedEventArgs.g.h"
 #include "KeySentEventArgs.g.h"
 #include "CharSentEventArgs.g.h"
+#include "StringSentEventArgs.g.h"
 #include "SearchMissingCommandEventArgs.g.h"
+#include "ShowNotificationEventArgs.g.h"
 #include "WindowSizeChangedEventArgs.g.h"
 
 namespace winrt::Microsoft::Terminal::Control::implementation
@@ -81,6 +84,24 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         std::string _rtf;
     };
 
+    struct PasteFromClipboardEventArgs : public PasteFromClipboardEventArgsT<PasteFromClipboardEventArgs>
+    {
+    public:
+        PasteFromClipboardEventArgs(std::function<void(const hstring&)> clipboardDataHandler, bool bracketedPasteEnabled) :
+            m_clipboardDataHandler(clipboardDataHandler),
+            _BracketedPasteEnabled{ bracketedPasteEnabled } {}
+
+        void HandleClipboardData(hstring value)
+        {
+            m_clipboardDataHandler(value);
+        };
+
+        WINRT_PROPERTY(bool, BracketedPasteEnabled, false);
+
+    private:
+        std::function<void(const hstring&)> m_clipboardDataHandler;
+    };
+
     struct OpenHyperlinkEventArgs : public OpenHyperlinkEventArgsT<OpenHyperlinkEventArgs>
     {
     public:
@@ -212,6 +233,15 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         WINRT_PROPERTY(winrt::Microsoft::Terminal::Core::ControlKeyStates, Modifiers);
     };
 
+    struct StringSentEventArgs : public StringSentEventArgsT<StringSentEventArgs>
+    {
+    public:
+        StringSentEventArgs(const winrt::hstring& text) :
+            _Text(text) {}
+
+        WINRT_PROPERTY(winrt::hstring, Text);
+    };
+
     struct SearchMissingCommandEventArgs : public SearchMissingCommandEventArgsT<SearchMissingCommandEventArgs>
     {
     public:
@@ -223,6 +253,17 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         til::property<til::CoordType> BufferRow;
     };
 
+    struct ShowNotificationEventArgs : public ShowNotificationEventArgsT<ShowNotificationEventArgs>
+    {
+    public:
+        ShowNotificationEventArgs(const winrt::hstring& title, const winrt::hstring& body) :
+            Title(title),
+            Body(body) {}
+
+        til::property<winrt::hstring> Title;
+        til::property<winrt::hstring> Body;
+    };
+
     struct WindowSizeChangedEventArgs : public WindowSizeChangedEventArgsT<WindowSizeChangedEventArgs>
     {
     public:

src/cascadia/TerminalControl/EventArgs.idl

@@ -68,6 +68,12 @@ namespace Microsoft.Terminal.Control
         byte[] Rtf { get; }; // UTF-8, as required by "Rich Text Format"
     }
 
+    runtimeclass PasteFromClipboardEventArgs
+    {
+        void HandleClipboardData(String data);
+        Boolean BracketedPasteEnabled { get; };
+    }
+
     runtimeclass OpenHyperlinkEventArgs
     {
         OpenHyperlinkEventArgs(String uri);
@@ -143,12 +149,23 @@ namespace Microsoft.Terminal.Control
         Microsoft.Terminal.Core.ControlKeyStates Modifiers { get; };
     }
 
+    runtimeclass StringSentEventArgs
+    {
+        String Text { get; };
+    }
+
     runtimeclass SearchMissingCommandEventArgs
     {
         String MissingCommand { get; };
         Int32 BufferRow { get; };
     }
 
+    runtimeclass ShowNotificationEventArgs
+    {
+        String Title { get; };
+        String Body { get; };
+    }
+
     runtimeclass WindowSizeChangedEventArgs
     {
         Int32 Width;

src/cascadia/TerminalControl/IControlSettings.idl

@@ -29,6 +29,30 @@ namespace Microsoft.Terminal.Control
         MinGW,
     };
 
+    [flags]
+    enum OutputNotificationStyle
+    {
+        None = 0,
+        Taskbar = 0x1,
+        Audible = 0x2,
+        Tab = 0x4,
+        Notification = 0x8,
+        All = 0xffffffff
+    };
+
+    // Mirrors Microsoft::Console::VirtualTerminal::DispatchTypes::TaskbarState
+    // (which is shared with conhost and lives outside the WinRT projection).
+    // Values must remain numerically identical so the conversion at the
+    // ControlCore boundary is a 1:1 cast.
+    enum TaskbarState
+    {
+        Clear = 0,
+        Set = 1,
+        Error = 2,
+        Indeterminate = 3,
+        Paused = 4,
+    };
+
     // Class Description:
     // TerminalSettings encapsulates all settings that control the
     //      TermControl's behavior. In these settings there is both the entirety
@@ -78,6 +102,10 @@ namespace Microsoft.Terminal.Control
         PathTranslationStyle PathTranslationStyle { get; };
         String DragDropDelimiter { get; };
 
+        OutputNotificationStyle NotifyOnActivity { get; };
+        OutputNotificationStyle NotifyOnNextPrompt { get; };
+        Boolean AutoDetectRunningCommand { get; };
+
         // NOTE! When adding something here, make sure to update ControlProperties.h too!
     };
 }

src/cascadia/TerminalControl/ICoreState.idl

@@ -1,6 +1,8 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
+import "IControlSettings.idl";
+
 namespace Microsoft.Terminal.Control
 {
     enum MarkCategory
@@ -31,7 +33,7 @@ namespace Microsoft.Terminal.Control
     interface ICoreState
     {
         String Title { get; };
-        UInt64 TaskbarState { get; };
+        Microsoft.Terminal.Control.TaskbarState TaskbarState { get; };
         UInt64 TaskbarProgress { get; };
 
         String WorkingDirectory { get; };

src/cascadia/TerminalControl/Resources/en-US/Resources.resw

@@ -137,6 +137,14 @@
     <value>Find</value>
     <comment>The placeholder text in the search box control.</comment>
   </data>
+  <data name="DragFileCaption" xml:space="preserve">
+    <value>Paste path to file</value>
+    <comment>The displayed caption for dragging a file onto a terminal.</comment>
+  </data>
+  <data name="DragTextCaption" xml:space="preserve">
+    <value>Paste text</value>
+    <comment>The displayed caption for dragging text onto a terminal.</comment>
+  </data>
   <data name="SearchBox_CaseSensitivity.[using:Windows.UI.Xaml.Automation]AutomationProperties.Name" xml:space="preserve">
     <value>Case Sensitivity</value>
     <comment>The name of the case sensitivity button on the search box control for accessibility.</comment>

src/cascadia/TerminalControl/TermControl.cpp

@@ -23,6 +23,8 @@ using namespace winrt::Windows::UI::Core;
 using namespace winrt::Windows::UI::ViewManagement;
 using namespace winrt::Windows::UI::Input;
 using namespace winrt::Windows::System;
+using namespace winrt::Windows::ApplicationModel::DataTransfer;
+using namespace winrt::Windows::Storage::Streams;
 
 // The minimum delay between updates to the scroll bar's values.
 // The updates are throttled to limit power usage.
@@ -87,6 +89,72 @@ static Microsoft::Console::TSF::Handle& GetTSFHandle()
 
 namespace winrt::Microsoft::Terminal::Control::implementation
 {
+    static void _translatePathInPlace(std::wstring& fullPath, PathTranslationStyle translationStyle)
+    {
+        static constexpr wil::zwstring_view s_pathPrefixes[] = {
+            {},
+            /* WSL */ L"/mnt/",
+            /* Cygwin */ L"/cygdrive/",
+            /* MSYS2 */ L"/",
+            /* MinGW */ {},
+        };
+        static constexpr wil::zwstring_view sSingleQuoteEscape = L"'\\''";
+        static constexpr auto cchSingleQuoteEscape = sSingleQuoteEscape.size();
+
+        if (translationStyle == PathTranslationStyle::None)
+        {
+            return;
+        }
+
+        // All of the other path translation modes current result in /-delimited paths
+        std::replace(fullPath.begin(), fullPath.end(), L'\\', L'/');
+
+        // Escape single quotes, assuming translated paths are always quoted by a pair of single quotes.
+        size_t pos = 0;
+        while ((pos = fullPath.find(L'\'', pos)) != std::wstring::npos)
+        {
+            // ' -> '\'' (for POSIX shell)
+            fullPath.replace(pos, 1, sSingleQuoteEscape);
+            // Arithmetic overflow cannot occur here.
+            pos += cchSingleQuoteEscape;
+        }
+
+        if (translationStyle == PathTranslationStyle::MinGW)
+        {
+            return;
+        }
+
+        if (fullPath.size() >= 2 && fullPath.at(1) == L':')
+        {
+            // C:/foo/bar -> Cc/foo/bar
+            fullPath.at(1) = til::tolower_ascii(fullPath.at(0));
+            // Cc/foo/bar -> [PREFIX]c/foo/bar
+            fullPath.replace(0, 1, s_pathPrefixes[static_cast<int>(translationStyle)]);
+        }
+        else if (translationStyle == PathTranslationStyle::WSL)
+        {
+            // Stripping the UNC name and distribution prefix only applies to WSL.
+            static constexpr std::wstring_view wslPathPrefixes[] = { L"//wsl.localhost/", L"//wsl$/" };
+            for (auto prefix : wslPathPrefixes)
+            {
+                if (til::starts_with(fullPath, prefix))
+                {
+                    if (const auto idx = fullPath.find(L'/', prefix.size()); idx != std::wstring::npos)
+                    {
+                        // //wsl.localhost/Ubuntu-18.04/foo/bar -> /foo/bar
+                        fullPath.erase(0, idx);
+                    }
+                    else
+                    {
+                        // //wsl.localhost/Ubuntu-18.04 -> /
+                        fullPath = L"/";
+                    }
+                    break;
+                }
+            }
+        }
+    }
+
     TsfDataProvider::TsfDataProvider(TermControl* termControl) noexcept :
         _termControl{ termControl }
     {
@@ -170,7 +238,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         {
             return;
         }
-        core->WriteInputString(text, WriteInputStringType::Raw);
+        core->SendInput(text);
     }
 
     ::Microsoft::Console::Render::Renderer* TsfDataProvider::GetRenderer()
@@ -260,6 +328,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         _revokers.CompletionsChanged = _core.CompletionsChanged(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleCompletionsChanged });
         _revokers.RestartTerminalRequested = _core.RestartTerminalRequested(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleRestartTerminalRequested });
         _revokers.SearchMissingCommand = _core.SearchMissingCommand(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleSearchMissingCommand });
+        _revokers.ShowNotification = _core.ShowNotification(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleShowNotification });
         _revokers.WindowSizeChanged = _core.WindowSizeChanged(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleWindowSizeChanged });
         _revokers.WriteToClipboard = _core.WriteToClipboard(winrt::auto_revoke, { get_weak(), &TermControl::_bubbleWriteToClipboard });
 
@@ -325,6 +394,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         // attached content before we set up the throttled func, and that'll A/V
         _revokers.coreScrollPositionChanged = _core.ScrollPositionChanged(winrt::auto_revoke, { get_weak(), &TermControl::_ScrollPositionChanged });
         _revokers.WarningBell = _core.WarningBell(winrt::auto_revoke, { get_weak(), &TermControl::_coreWarningBell });
+        _revokers.PromptStarted = _core.PromptStarted(winrt::auto_revoke, { get_weak(), &TermControl::_corePromptStarted });
+        _revokers.OutputStarted = _core.OutputStarted(winrt::auto_revoke, { get_weak(), &TermControl::_coreOutputStarted });
 
         static constexpr auto AutoScrollUpdateInterval = std::chrono::microseconds(static_cast<int>(1.0 / 30.0 * 1000000));
         _autoScrollTimer.Interval(AutoScrollUpdateInterval);
@@ -844,13 +915,19 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - wstr: the string of characters to write to the terminal connection.
     // Return Value:
     // - <none>
-    void TermControl::WriteInputString(const winrt::hstring& wstr, WriteInputStringType type)
+    void TermControl::SendInput(const winrt::hstring& wstr)
     {
         // Dismiss any previewed input.
         PreviewInput(hstring{});
-        _core.WriteInputString(wstr, type);
-    }
 
+        // only broadcast if there's an actual listener. Saves the overhead of some object creation.
+        if (StringSent)
+        {
+            StringSent.raise(*this, winrt::make<StringSentEventArgs>(wstr));
+        }
+
+        RawWriteString(wstr);
+    }
     void TermControl::ClearBuffer(Control::ClearBufferType clearType)
     {
         _core.ClearBuffer(clearType);
@@ -1450,6 +1527,11 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         return _core.SendCharEvent(character, scanCode, modifiers);
     }
 
+    void TermControl::RawWriteString(const winrt::hstring& text)
+    {
+        _core.SendInput(text);
+    }
+
     // Method Description:
     // - Manually handles key events for certain keys that can't be passed to us
     //   normally. Namely, the keys we're concerned with are F7 down and Alt up.
@@ -1596,7 +1678,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
                 // If it encounters a string that isn't, cppwinrt will abort().
                 // It should already be null-terminated, but let's make sure to not crash.
                 buf[buf_len] = L'\0';
-                _core.WriteInputString(std::wstring_view{ &buf[0], buf_len }, WriteInputStringType::Raw);
+                _core.SendInput(std::wstring_view{ &buf[0], buf_len });
             }
 
             s = {};
@@ -2377,6 +2459,46 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         {
             _automationPeer.UpdateControlBounds();
         }
+
+        // Show resize overlay with columns x rows
+        _ShowResizeOverlay();
+    }
+
+    // Method Description:
+    // - Shows a centered overlay with the current terminal dimensions (columns x rows).
+    //   Used during window resize and font size changes. Skipped for disabled controls
+    //   (e.g. the Settings preview terminal) to avoid visual noise.
+    void TermControl::_ShowResizeOverlay()
+    {
+        // Don't show the overlay in the Settings preview control
+        if (!IsEnabled())
+        {
+            return;
+        }
+
+        const auto coreImpl = winrt::get_self<ControlCore>(_core);
+        const auto cols = coreImpl->ViewWidth();
+        const auto rows = coreImpl->ViewHeight();
+        if (cols > 0 && rows > 0)
+        {
+            ResizeOverlayText().Text(fmt::format(FMT_COMPILE(L"{} \u00D7 {}"), cols, rows));
+            ResizeOverlay().Visibility(Visibility::Visible);
+
+            if (!_resizeOverlayTimer)
+            {
+                _resizeOverlayTimer.emplace();
+                _resizeOverlayTimer->Interval(std::chrono::milliseconds(750));
+                _resizeOverlayTimer->Tick([weakThis = get_weak()](auto&&, auto&&) {
+                    if (auto self = weakThis.get())
+                    {
+                        self->ResizeOverlay().Visibility(Visibility::Collapsed);
+                        self->_resizeOverlayTimer->Stop();
+                    }
+                });
+            }
+
+            _resizeOverlayTimer->Start();
+        }
     }
 
     // Method Description:
@@ -2990,6 +3112,230 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         return std::pow(cursorDistanceFromBorder, 2.0) / 25.0 + 2.0;
     }
 
+    // Method Description:
+    // - Async handler for the "Drop" event. If a file was dropped onto our
+    //   root, we'll try to get the path of the file dropped onto us, and write
+    //   the full path of the file to our terminal connection. Like conhost, if
+    //   the path contains a space, we'll wrap the path in quotes.
+    // - Unlike conhost, if multiple files are dropped onto the terminal, we'll
+    //   write all the paths to the terminal, separated by the configured delimiter.
+    // Arguments:
+    // - e: The DragEventArgs from the Drop event
+    // Return Value:
+    // - <none>
+    safe_void_coroutine TermControl::_DragDropHandler(Windows::Foundation::IInspectable /*sender*/,
+                                                      DragEventArgs e)
+    {
+        if (_IsClosing())
+        {
+            co_return;
+        }
+
+        if (const auto hwnd = reinterpret_cast<HWND>(OwningHwnd()))
+        {
+            SetForegroundWindow(hwnd);
+        }
+
+        const auto weak = get_weak();
+
+        if (e.DataView().Contains(StandardDataFormats::ApplicationLink()))
+        {
+            try
+            {
+                auto link{ co_await e.DataView().GetApplicationLinkAsync() };
+                if (const auto strong = weak.get())
+                {
+                    _pasteTextWithBroadcast(link.AbsoluteUri());
+                }
+            }
+            CATCH_LOG();
+        }
+        else if (e.DataView().Contains(StandardDataFormats::WebLink()))
+        {
+            try
+            {
+                auto link{ co_await e.DataView().GetWebLinkAsync() };
+                if (const auto strong = weak.get())
+                {
+                    _pasteTextWithBroadcast(link.AbsoluteUri());
+                }
+            }
+            CATCH_LOG();
+        }
+        else if (e.DataView().Contains(StandardDataFormats::Text()))
+        {
+            try
+            {
+                auto text{ co_await e.DataView().GetTextAsync() };
+                if (const auto strong = weak.get())
+                {
+                    _pasteTextWithBroadcast(text);
+                }
+            }
+            CATCH_LOG();
+        }
+        // StorageItem must be last. Some applications put hybrid data format items
+        // in a drop message and we'll eat a crash when we request them.
+        // Those applications usually include Text as well, so having storage items
+        // last makes sure we'll hit text before getting to them.
+        else if (e.DataView().Contains(StandardDataFormats::StorageItems()))
+        {
+            Windows::Foundation::Collections::IVectorView<Windows::Storage::IStorageItem> items;
+            try
+            {
+                items = co_await e.DataView().GetStorageItemsAsync();
+            }
+            CATCH_LOG();
+
+            if (items && items.Size() > 0)
+            {
+                std::vector<std::wstring> fullPaths;
+
+                // GH#14628: Workaround for GetStorageItemsAsync() only returning 16 items
+                // at most when dragging and dropping from archives (zip, 7z, rar, etc.)
+                if (items.Size() == 16 && e.DataView().Contains(winrt::hstring{ L"FileDrop" }))
+                {
+                    auto fileDropData = co_await e.DataView().GetDataAsync(winrt::hstring{ L"FileDrop" });
+                    if (fileDropData != nullptr)
+                    {
+                        auto stream = fileDropData.as<IRandomAccessStream>();
+                        stream.Seek(0);
+
+                        const uint32_t streamSize = gsl::narrow_cast<uint32_t>(stream.Size());
+                        const Buffer buf(streamSize);
+                        const auto buffer = co_await stream.ReadAsync(buf, streamSize, InputStreamOptions::None);
+
+                        const HGLOBAL hGlobal = buffer.data();
+                        const auto count = DragQueryFileW(static_cast<HDROP>(hGlobal), 0xFFFFFFFF, nullptr, 0);
+                        fullPaths.reserve(count);
+
+                        for (unsigned int i = 0; i < count; i++)
+                        {
+                            std::wstring path;
+                            path.resize(wil::max_path_length);
+                            const auto charsCopied = DragQueryFileW(static_cast<HDROP>(hGlobal), i, path.data(), wil::max_path_length);
+
+                            if (charsCopied > 0)
+                            {
+                                path.resize(charsCopied);
+                                fullPaths.emplace_back(std::move(path));
+                            }
+                        }
+                    }
+                }
+                else
+                {
+                    fullPaths.reserve(items.Size());
+                    for (const auto& item : items)
+                    {
+                        fullPaths.emplace_back(item.Path());
+                    }
+                }
+
+                const auto strong = weak.get();
+                if (!strong)
+                {
+                    co_return;
+                }
+
+                std::wstring allPathsString;
+                const auto delimiter{ _core.Settings().DragDropDelimiter() };
+                for (auto& fullPath : fullPaths)
+                {
+                    // Join the paths with the delimiter
+                    if (!allPathsString.empty())
+                    {
+                        allPathsString += delimiter;
+                    }
+
+                    const auto translationStyle{ _core.Settings().PathTranslationStyle() };
+                    _translatePathInPlace(fullPath, translationStyle);
+
+                    // All translated paths get quotes, and all strings spaces get quotes; all translated paths get single quotes
+                    const auto quotesNeeded = translationStyle != PathTranslationStyle::None || fullPath.find(L' ') != std::wstring::npos;
+                    const auto quotesChar = translationStyle != PathTranslationStyle::None ? L'\'' : L'"';
+
+                    // Append fullPath and also wrap it in quotes if needed
+                    if (quotesNeeded)
+                    {
+                        allPathsString.push_back(quotesChar);
+                    }
+                    allPathsString.append(fullPath);
+                    if (quotesNeeded)
+                    {
+                        allPathsString.push_back(quotesChar);
+                    }
+                }
+
+                _pasteTextWithBroadcast(winrt::hstring{ allPathsString });
+            }
+        }
+    }
+
+    // Method Description:
+    // - Paste this text, and raise a StringSent, to potentially broadcast this
+    //   text to other controls in the app. For certain interactions, like
+    //   drag/dropping a file, we want to act like we "pasted" the text (even if
+    //   the text didn't come from the clipboard). This lets those interactions
+    //   broadcast as well.
+    void TermControl::_pasteTextWithBroadcast(const winrt::hstring& text)
+    {
+        // only broadcast if there's an actual listener. Saves the overhead of some object creation.
+        if (StringSent)
+        {
+            StringSent.raise(*this, winrt::make<StringSentEventArgs>(text));
+        }
+        _core.PasteText(text);
+    }
+
+    // Method Description:
+    // - Handle the DragOver event. We'll signal that the drag operation we
+    //   support is the "copy" operation, and we'll also customize the
+    //   appearance of the drag-drop UI, by removing the preview and setting a
+    //   custom caption. For more information, see
+    //   https://docs.microsoft.com/en-us/windows/uwp/design/input/drag-and-drop#customize-the-ui
+    // Arguments:
+    // - e: The DragEventArgs from the DragOver event
+    // Return Value:
+    // - <none>
+    void TermControl::_DragOverHandler(const Windows::Foundation::IInspectable& /*sender*/,
+                                       const DragEventArgs& e)
+    {
+        if (_IsClosing())
+        {
+            return;
+        }
+
+        // We can only handle drag/dropping StorageItems (files) and plain Text
+        // currently. If the format on the clipboard is anything else, returning
+        // early here will prevent the drag/drop from doing anything.
+        if (!(e.DataView().Contains(StandardDataFormats::StorageItems()) ||
+              e.DataView().Contains(StandardDataFormats::Text())))
+        {
+            return;
+        }
+
+        // Make sure to set the AcceptedOperation, so that we can later receive the path in the Drop event
+        e.AcceptedOperation(DataPackageOperation::Copy);
+
+        // Sets custom UI text
+        if (e.DataView().Contains(StandardDataFormats::StorageItems()))
+        {
+            e.DragUIOverride().Caption(RS_(L"DragFileCaption"));
+        }
+        else if (e.DataView().Contains(StandardDataFormats::Text()))
+        {
+            e.DragUIOverride().Caption(RS_(L"DragTextCaption"));
+        }
+
+        // Sets if the caption is visible
+        e.DragUIOverride().IsCaptionVisible(true);
+        // Sets if the dragged content is visible
+        e.DragUIOverride().IsContentVisible(false);
+        // Sets if the glyph is visible
+        e.DragUIOverride().IsGlyphVisible(false);
+    }
+
     // Method description:
     // - Checks if the uri is valid and sends an event if so
     // Arguments:
@@ -3053,7 +3399,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - Gets the internal taskbar state value
     // Return Value:
     // - The taskbar state of this control
-    const uint64_t TermControl::TaskbarState() const noexcept
+    const Control::TaskbarState TermControl::TaskbarState() const noexcept
     {
         return _core.TaskbarState();
     }
@@ -3423,6 +3769,16 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         _playWarningBell->Run();
     }
 
+    void TermControl::_corePromptStarted(const IInspectable& /*sender*/, const IInspectable& /*args*/)
+    {
+        PromptStarted.raise(*this, nullptr);
+    }
+
+    void TermControl::_coreOutputStarted(const IInspectable& /*sender*/, const IInspectable& /*args*/)
+    {
+        OutputStarted.raise(*this, nullptr);
+    }
+
     hstring TermControl::ReadEntireBuffer() const
     {
         return _core.ReadEntireBuffer();
@@ -3540,6 +3896,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     void TermControl::_coreOutputIdle(const IInspectable& /*sender*/, const IInspectable& /*args*/)
     {
         _refreshSearch();
+        OutputIdle.raise(*this, nullptr);
     }
 
     void TermControl::OwningHwnd(uint64_t owner)

src/cascadia/TerminalControl/TermControl.h

@@ -86,7 +86,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void ColorSelection(Control::SelectionColor fg, Control::SelectionColor bg, Core::MatchMode matchMode);
 
 #pragma region ICoreState
-        const uint64_t TaskbarState() const noexcept;
+        const Control::TaskbarState TaskbarState() const noexcept;
         const uint64_t TaskbarProgress() const noexcept;
 
         hstring Title();
@@ -125,7 +125,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void ResetFontSize();
         winrt::Windows::Foundation::Size GetFontSize() const;
 
-        void WriteInputString(const winrt::hstring& wstr, WriteInputStringType type);
+        void SendInput(const winrt::hstring& input);
         void ClearBuffer(Control::ClearBufferType clearType);
 
         void ToggleShaderEffects();
@@ -179,6 +179,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
         bool RawWriteKeyEvent(const WORD vkey, const WORD scanCode, const winrt::Microsoft::Terminal::Core::ControlKeyStates modifiers, const bool keyDown);
         bool RawWriteChar(const wchar_t character, const WORD scanCode, const winrt::Microsoft::Terminal::Core::ControlKeyStates modifiers);
+        void RawWriteString(const winrt::hstring& text);
 
         void ShowContextMenu();
         bool OpenQuickFixMenu();
@@ -210,8 +211,12 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         til::typed_event<IInspectable, IInspectable> FocusFollowMouseRequested;
         til::typed_event<Control::TermControl, Windows::UI::Xaml::RoutedEventArgs> Initialized;
         til::typed_event<> WarningBell;
+        til::typed_event<> PromptStarted;
+        til::typed_event<> OutputStarted;
+        til::typed_event<> OutputIdle;
         til::typed_event<IInspectable, Control::KeySentEventArgs> KeySent;
         til::typed_event<IInspectable, Control::CharSentEventArgs> CharSent;
+        til::typed_event<IInspectable, Control::StringSentEventArgs> StringSent;
         til::typed_event<IInspectable, Control::SearchMissingCommandEventArgs> SearchMissingCommand;
         til::typed_event<IInspectable, Control::WindowSizeChangedEventArgs> WindowSizeChanged;
 
@@ -227,7 +232,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         BUBBLED_FORWARDED_TYPED_EVENT(CompletionsChanged,       IInspectable, Control::CompletionsChangedEventArgs);
         BUBBLED_FORWARDED_TYPED_EVENT(RestartTerminalRequested, IInspectable, IInspectable);
         BUBBLED_FORWARDED_TYPED_EVENT(WriteToClipboard,         IInspectable, Control::WriteToClipboardEventArgs);
-        BUBBLED_FORWARDED_TYPED_EVENT(PasteFromClipboard,       IInspectable, IInspectable);
+        BUBBLED_FORWARDED_TYPED_EVENT(PasteFromClipboard,       IInspectable, Control::PasteFromClipboardEventArgs);
+        BUBBLED_FORWARDED_TYPED_EVENT(ShowNotification,         IInspectable, Control::ShowNotificationEventArgs);
 
         // clang-format on
 
@@ -314,6 +320,9 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         winrt::hstring _restorePath;
         bool _showMarksInScrollbar{ false };
 
+        std::optional<SafeDispatcherTimer> _resizeOverlayTimer;
+        void _ShowResizeOverlay();
+
         bool _isBackgroundLight{ false };
         bool _detached{ false };
         til::CoordType _searchScrollOffset = 0;
@@ -376,6 +385,9 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void _GotFocusHandler(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::RoutedEventArgs& e);
         void _LostFocusHandler(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::RoutedEventArgs& e);
 
+        safe_void_coroutine _DragDropHandler(Windows::Foundation::IInspectable sender, Windows::UI::Xaml::DragEventArgs e);
+        void _DragOverHandler(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::DragEventArgs& e);
+
         safe_void_coroutine _HyperlinkHandler(Windows::Foundation::IInspectable sender, Control::OpenHyperlinkEventArgs e);
 
         void _BellLightOff(const Windows::Foundation::IInspectable& sender, const Windows::Foundation::IInspectable& e);
@@ -419,11 +431,15 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         void _coreTransparencyChanged(IInspectable sender, Control::TransparencyChangedEventArgs args);
         void _coreRaisedNotice(const IInspectable& s, const Control::NoticeEventArgs& args);
         void _coreWarningBell(const IInspectable& sender, const IInspectable& args);
+        void _corePromptStarted(const IInspectable& sender, const IInspectable& args);
+        void _coreOutputStarted(const IInspectable& sender, const IInspectable& args);
         void _coreOutputIdle(const IInspectable& sender, const IInspectable& args);
 
         winrt::Windows::Foundation::Point _toPosInDips(const Core::Point terminalCellPos);
         void _throttledUpdateScrollbar(const ScrollBarUpdate& update);
 
+        void _pasteTextWithBroadcast(const winrt::hstring& text);
+
         void _contextMenuHandler(IInspectable sender, Control::ContextMenuRequestedEventArgs args);
         void _showContextMenuAt(const winrt::Windows::Foundation::Point& controlRelativePos);
 
@@ -442,6 +458,8 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         {
             Control::ControlCore::ScrollPositionChanged_revoker coreScrollPositionChanged;
             Control::ControlCore::WarningBell_revoker WarningBell;
+            Control::ControlCore::PromptStarted_revoker PromptStarted;
+            Control::ControlCore::OutputStarted_revoker OutputStarted;
             Control::ControlCore::RendererEnteredErrorState_revoker RendererEnteredErrorState;
             Control::ControlCore::BackgroundColorChanged_revoker BackgroundColorChanged;
             Control::ControlCore::FontSizeChanged_revoker FontSizeChanged;
@@ -461,6 +479,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
             Control::ControlCore::CompletionsChanged_revoker CompletionsChanged;
             Control::ControlCore::RestartTerminalRequested_revoker RestartTerminalRequested;
             Control::ControlCore::SearchMissingCommand_revoker SearchMissingCommand;
+            Control::ControlCore::ShowNotification_revoker ShowNotification;
             Control::ControlCore::RefreshQuickFixUI_revoker RefreshQuickFixUI;
             Control::ControlCore::WindowSizeChanged_revoker WindowSizeChanged;
 

src/cascadia/TerminalControl/TermControl.idl

@@ -64,11 +64,14 @@ namespace Microsoft.Terminal.Control
 
         event Windows.Foundation.TypedEventHandler<Object, TitleChangedEventArgs> TitleChanged;
         event Windows.Foundation.TypedEventHandler<Object, WriteToClipboardEventArgs> WriteToClipboard;
-        event Windows.Foundation.TypedEventHandler<Object, Object> PasteFromClipboard;
+        event Windows.Foundation.TypedEventHandler<Object, PasteFromClipboardEventArgs> PasteFromClipboard;
         event Windows.Foundation.TypedEventHandler<Object, OpenHyperlinkEventArgs> OpenHyperlink;
         event Windows.Foundation.TypedEventHandler<Object, Object> SetTaskbarProgress;
         event Windows.Foundation.TypedEventHandler<Object, NoticeEventArgs> RaiseNotice;
         event Windows.Foundation.TypedEventHandler<Object, Object> WarningBell;
+        event Windows.Foundation.TypedEventHandler<Object, Object> PromptStarted;
+        event Windows.Foundation.TypedEventHandler<Object, Object> OutputStarted;
+        event Windows.Foundation.TypedEventHandler<Object, Object> OutputIdle;
         event Windows.Foundation.TypedEventHandler<Object, Object> HidePointerCursor;
         event Windows.Foundation.TypedEventHandler<Object, Object> RestorePointerCursor;
         event Windows.Foundation.TypedEventHandler<Object, Object> TabColorChanged;
@@ -80,7 +83,9 @@ namespace Microsoft.Terminal.Control
 
         event Windows.Foundation.TypedEventHandler<Object, KeySentEventArgs> KeySent;
         event Windows.Foundation.TypedEventHandler<Object, CharSentEventArgs> CharSent;
+        event Windows.Foundation.TypedEventHandler<Object, StringSentEventArgs> StringSent;
         event Windows.Foundation.TypedEventHandler<Object, SearchMissingCommandEventArgs> SearchMissingCommand;
+        event Windows.Foundation.TypedEventHandler<Object, ShowNotificationEventArgs> ShowNotification;
 
 
         Microsoft.UI.Xaml.Controls.CommandBarFlyout ContextMenu { get; };
@@ -126,9 +131,10 @@ namespace Microsoft.Terminal.Control
         void ResetFontSize();
 
         void ToggleShaderEffects();
+        void SendInput(String input);
         Boolean RawWriteKeyEvent(UInt16 vkey, UInt16 scanCode, Microsoft.Terminal.Core.ControlKeyStates modifiers, Boolean keyDown);
         Boolean RawWriteChar(Char character, UInt16 scanCode, Microsoft.Terminal.Core.ControlKeyStates modifiers);
-        void WriteInputString(String text, WriteInputStringType type);
+        void RawWriteString(String text);
 
         void BellLightOn();
 

src/cascadia/TerminalControl/TermControl.xaml

@@ -20,6 +20,8 @@
              AllowFocusOnInteraction="True"
              Background="Transparent"
              CharacterReceived="_CharacterHandler"
+             DragOver="_DragOverHandler"
+             Drop="_DragDropHandler"
              GotFocus="_GotFocusHandler"
              IsTabStop="True"
              KeyUp="_KeyUpHandler"
@@ -1363,6 +1365,24 @@
 
         </Grid>
 
+        <!--  Resize overlay: shows columns x rows when terminal is resized  -->
+        <Border x:Name="ResizeOverlay"
+                Padding="16,8,16,8"
+                HorizontalAlignment="Center"
+                VerticalAlignment="Center"
+                Background="{ThemeResource SystemControlBackgroundAltHighBrush}"
+                BorderBrush="{ThemeResource SystemAccentColor}"
+                BorderThickness="1"
+                CornerRadius="{ThemeResource OverlayCornerRadius}"
+                IsHitTestVisible="False"
+                Visibility="Collapsed">
+            <TextBlock x:Name="ResizeOverlayText"
+                       FontSize="18"
+                       FontWeight="SemiBold"
+                       Foreground="{ThemeResource SystemControlForegroundBaseHighBrush}"
+                       TextAlignment="Center" />
+        </Border>
+
         <Grid x:Name="RendererFailedNotice"
               HorizontalAlignment="Center"
               VerticalAlignment="Center"

src/cascadia/TerminalControl/pch.h

@@ -48,6 +48,7 @@
 #include <winrt/Windows.ui.xaml.markup.h>
 #include <winrt/Windows.ui.xaml.shapes.h>
 #include <winrt/Windows.ApplicationModel.DataTransfer.h>
+#include <winrt/Windows.Storage.h>
 #include <winrt/Windows.Storage.Streams.h>
 #include <winrt/Windows.UI.Xaml.Shapes.h>
 

src/cascadia/TerminalCore/ICoreSettings.idl

@@ -124,6 +124,7 @@ namespace Microsoft.Terminal.Core
         Boolean AllowKittyKeyboardMode { get; };
         Boolean AllowVtChecksumReport { get; };
         Boolean AllowVtClipboardWrite { get; };
+        Boolean AllowOscNotifications { get; };
         Boolean TrimBlockSelection { get; };
         Boolean DetectURLs { get; };
 

src/cascadia/TerminalCore/Terminal.cpp

@@ -263,6 +263,7 @@ void Terminal::SetOptionalFeatures(winrt::Microsoft::Terminal::Core::ICoreSettin
     auto features = til::enumset<ITermDispatch::OptionalFeature>{};
     features.set(ITermDispatch::OptionalFeature::ChecksumReport, settings.AllowVtChecksumReport());
     features.set(ITermDispatch::OptionalFeature::ClipboardWrite, settings.AllowVtClipboardWrite());
+    features.set(ITermDispatch::OptionalFeature::DesktopNotification, settings.AllowOscNotifications());
     engine.Dispatch().SetOptionalFeatures(features);
 }
 
@@ -763,6 +764,11 @@ TerminalInput::OutputType Terminal::SendCharEvent(const wchar_t ch, const WORD s
                 // This changed the scrollbar marks - raise a notification to update them
                 _NotifyScrollEvent();
             }
+            // regardless, notify that we started command output
+            if (_pfnOutputStarted)
+            {
+                _pfnOutputStarted();
+            }
         }
     }
 
@@ -1248,7 +1254,7 @@ const std::optional<til::color> Terminal::GetTabColor() const
 // - Gets the internal taskbar state value
 // Return Value:
 // - The taskbar state
-const size_t Microsoft::Terminal::Core::Terminal::GetTaskbarState() const noexcept
+const Microsoft::Console::VirtualTerminal::DispatchTypes::TaskbarState Microsoft::Terminal::Core::Terminal::GetTaskbarState() const noexcept
 {
     return _taskbarState;
 }
@@ -1272,11 +1278,26 @@ void Microsoft::Terminal::Core::Terminal::SetSearchMissingCommandCallback(std::f
     _pfnSearchMissingCommand.swap(pfn);
 }
 
+void Microsoft::Terminal::Core::Terminal::SetShowNotificationCallback(std::function<void(std::wstring_view, std::wstring_view)> pfn) noexcept
+{
+    _pfnShowNotification.swap(pfn);
+}
+
 void Microsoft::Terminal::Core::Terminal::SetClearQuickFixCallback(std::function<void()> pfn) noexcept
 {
     _pfnClearQuickFix.swap(pfn);
 }
 
+void Terminal::SetPromptStartedCallback(std::function<void()> pfn) noexcept
+{
+    _pfnPromptStarted.swap(pfn);
+}
+
+void Terminal::SetOutputStartedCallback(std::function<void()> pfn) noexcept
+{
+    _pfnOutputStarted.swap(pfn);
+}
+
 // Method Description:
 // - Stores the search highlighted regions in the terminal
 void Terminal::SetSearchHighlights(const std::vector<til::point_span>& highlights) noexcept

src/cascadia/TerminalCore/Terminal.hpp

@@ -159,12 +159,14 @@ public:
 
     bool IsVtInputEnabled() const noexcept override;
     void NotifyBufferRotation(const int delta) override;
-    void NotifyShellIntegrationMark() override;
+    void NotifyShellIntegrationMark(ShellIntegrationMark mark) override;
 
     void InvokeCompletions(std::wstring_view menuJson, unsigned int replaceLength) override;
 
     void SearchMissingCommand(const std::wstring_view command) override;
 
+    void ShowNotification(const std::wstring_view title, const std::wstring_view body) override;
+
 #pragma endregion
 
     void ClearMark();
@@ -233,8 +235,11 @@ public:
     void SetPlayMidiNoteCallback(std::function<void(const int, const int, const std::chrono::microseconds)> pfn) noexcept;
     void CompletionsChangedCallback(std::function<void(std::wstring_view, unsigned int)> pfn) noexcept;
     void SetSearchMissingCommandCallback(std::function<void(std::wstring_view, const til::CoordType)> pfn) noexcept;
+    void SetShowNotificationCallback(std::function<void(std::wstring_view, std::wstring_view)> pfn) noexcept;
     void SetClearQuickFixCallback(std::function<void()> pfn) noexcept;
     void SetWindowSizeChangedCallback(std::function<void(int32_t, int32_t)> pfn) noexcept;
+    void SetPromptStartedCallback(std::function<void()> pfn) noexcept;
+    void SetOutputStartedCallback(std::function<void()> pfn) noexcept;
     void SetSearchHighlights(const std::vector<til::point_span>& highlights) noexcept;
     void SetSearchHighlightFocused(size_t focusedIdx) noexcept;
     void ScrollToSearchHighlight(til::CoordType searchScrollOffset);
@@ -243,7 +248,7 @@ public:
 
     const std::optional<til::color> GetTabColor() const;
 
-    const size_t GetTaskbarState() const noexcept;
+    const ::Microsoft::Console::VirtualTerminal::DispatchTypes::TaskbarState GetTaskbarState() const noexcept;
     const size_t GetTaskbarProgress() const noexcept;
 
     void ColorSelection(const TextAttribute& attr, winrt::Microsoft::Terminal::Core::MatchMode matchMode);
@@ -341,8 +346,11 @@ private:
     std::function<void(const int, const int, const std::chrono::microseconds)> _pfnPlayMidiNote;
     std::function<void(std::wstring_view, unsigned int)> _pfnCompletionsChanged;
     std::function<void(std::wstring_view, const til::CoordType)> _pfnSearchMissingCommand;
+    std::function<void(std::wstring_view, std::wstring_view)> _pfnShowNotification;
     std::function<void()> _pfnClearQuickFix;
     std::function<void(int32_t, int32_t)> _pfnWindowSizeChanged;
+    std::function<void()> _pfnPromptStarted;
+    std::function<void()> _pfnOutputStarted;
 
     RenderSettings _renderSettings;
     std::unique_ptr<::Microsoft::Console::VirtualTerminal::StateMachine> _stateMachine;
@@ -363,6 +371,9 @@ private:
 
     til::enumset<Mode> _systemMode{ Mode::AutoWrap };
 
+    ::Microsoft::Console::VirtualTerminal::DispatchTypes::TaskbarState _taskbarState{ ::Microsoft::Console::VirtualTerminal::DispatchTypes::TaskbarState::Clear };
+    size_t _taskbarProgress = 0;
+
     bool _focused = false;
     bool _snapOnInput = true;
     bool _altGrAliasing = true;
@@ -371,9 +382,6 @@ private:
     bool _autoMarkPrompts = false;
     bool _rainbowSuggestions = false;
 
-    size_t _taskbarState = 0;
-    size_t _taskbarProgress = 0;
-
     size_t _hyperlinkPatternId = 0;
 
     std::wstring _answerbackMessage;

src/cascadia/TerminalCore/TerminalApi.cpp

@@ -162,7 +162,7 @@ void Terminal::SetTaskbarProgress(const ::Microsoft::Console::VirtualTerminal::D
 {
     _assertLocked();
 
-    _taskbarState = static_cast<size_t>(state);
+    _taskbarState = state;
 
     switch (state)
     {
@@ -369,6 +369,14 @@ void Terminal::SearchMissingCommand(const std::wstring_view command)
     }
 }
 
+void Terminal::ShowNotification(const std::wstring_view title, const std::wstring_view body)
+{
+    if (_pfnShowNotification)
+    {
+        _pfnShowNotification(title, body);
+    }
+}
+
 void Terminal::NotifyBufferRotation(const int delta)
 {
     // Update our selection, so it doesn't move as the buffer is cycled
@@ -405,8 +413,26 @@ void Terminal::NotifyBufferRotation(const int delta)
     }
 }
 
-void Terminal::NotifyShellIntegrationMark()
+void Terminal::NotifyShellIntegrationMark(ShellIntegrationMark mark)
 {
     // Notify the scrollbar that marks have been added so it can refresh the mark indicators
     _NotifyScrollEvent();
+
+    switch (mark)
+    {
+    case ShellIntegrationMark::Prompt:
+        if (_pfnPromptStarted)
+        {
+            _pfnPromptStarted();
+        }
+        break;
+    case ShellIntegrationMark::Output:
+        if (_pfnOutputStarted)
+        {
+            _pfnOutputStarted();
+        }
+        break;
+    default:
+        break;
+    }
 }

src/cascadia/TerminalSettingsAppAdapterLib/TerminalSettings.cpp

@@ -352,8 +352,12 @@ namespace winrt::Microsoft::Terminal::Settings
         _AllowKittyKeyboardMode = profile.AllowKittyKeyboardMode();
         _AllowVtChecksumReport = profile.AllowVtChecksumReport();
         _AllowVtClipboardWrite = profile.AllowVtClipboardWrite();
+        _AllowOscNotifications = profile.AllowOscNotifications();
         _PathTranslationStyle = profile.PathTranslationStyle();
         _DragDropDelimiter = profile.DragDropDelimiter();
+        _NotifyOnActivity = profile.NotifyOnActivity();
+        _NotifyOnNextPrompt = profile.NotifyOnNextPrompt();
+        _AutoDetectRunningCommand = profile.AutoDetectRunningCommand();
     }
 
     // Method Description:

src/cascadia/TerminalSettingsEditor/GlobalAppearance.xaml

@@ -75,6 +75,13 @@
                           Style="{StaticResource ToggleSwitchInExpanderStyle}" />
         </local:SettingContainer>
 
+        <!--  Show pane headers  -->
+        <local:SettingContainer x:Name="ShowPaneHeaders"
+                                x:Uid="Globals_ShowPaneHeaders">
+            <ToggleSwitch IsOn="{x:Bind ViewModel.ShowPaneHeaders, Mode=TwoWay}"
+                          Style="{StaticResource ToggleSwitchInExpanderStyle}" />
+        </local:SettingContainer>
+
         <!--  Show Acrylic in Tab Row  -->
         <local:SettingContainer x:Name="AcrylicTabRow"
                                 x:Uid="Globals_AcrylicTabRow">

src/cascadia/TerminalSettingsEditor/GlobalAppearanceViewModel.h

@@ -33,6 +33,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
 
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, AlwaysShowTabs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ShowTabsFullscreen);
+        PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ShowPaneHeaders);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ShowTabsInTitlebar);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, UseAcrylicInTabRow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ShowTitleInTitlebar);

src/cascadia/TerminalSettingsEditor/GlobalAppearanceViewModel.idl

@@ -27,6 +27,7 @@ namespace Microsoft.Terminal.Settings.Editor
 
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, AlwaysShowTabs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ShowTabsFullscreen);
+        PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ShowPaneHeaders);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ShowTabsInTitlebar);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, UseAcrylicInTabRow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ShowTitleInTitlebar);

src/cascadia/TerminalSettingsEditor/Interaction.xaml

@@ -135,11 +135,14 @@
             <TextBlock x:Uid="Globals_WarningsHeader"
                        Style="{StaticResource TextBlockSubHeaderStyle}" />
 
-            <!--  Close All Tabs Warning  -->
-            <local:SettingContainer x:Name="ConfirmCloseAllTabs"
-                                    x:Uid="Globals_ConfirmCloseAllTabs">
-                <ToggleSwitch IsOn="{x:Bind ViewModel.ConfirmCloseAllTabs, Mode=TwoWay}"
-                              Style="{StaticResource ToggleSwitchInExpanderStyle}" />
+            <!--  Confirm Close On  -->
+            <local:SettingContainer x:Name="ConfirmOnClose"
+                                    x:Uid="Globals_ConfirmOnClose">
+                <ComboBox AutomationProperties.AccessibilityView="Content"
+                          ItemTemplate="{StaticResource EnumComboBoxTemplate}"
+                          ItemsSource="{x:Bind ViewModel.ConfirmOnCloseList}"
+                          SelectedItem="{x:Bind ViewModel.CurrentConfirmOnClose, Mode=TwoWay}"
+                          Style="{StaticResource ComboBoxSettingStyle}" />
             </local:SettingContainer>
 
             <!--  Input Service Warning  -->

src/cascadia/TerminalSettingsEditor/InteractionViewModel.cpp

@@ -17,5 +17,6 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
     {
         INITIALIZE_BINDABLE_ENUM_SETTING(TabSwitcherMode, TabSwitcherMode, TabSwitcherMode, L"Globals_TabSwitcherMode", L"Content");
         INITIALIZE_BINDABLE_ENUM_SETTING(CopyFormat, CopyFormat, winrt::Microsoft::Terminal::Control::CopyFormat, L"Globals_CopyFormat", L"Content");
+        INITIALIZE_BINDABLE_ENUM_SETTING(ConfirmOnClose, ConfirmOnClose, Model::ConfirmOnClose, L"Globals_ConfirmOnClose", L"Content");
     }
 }

src/cascadia/TerminalSettingsEditor/InteractionViewModel.h

@@ -19,6 +19,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
 
         GETSET_BINDABLE_ENUM_SETTING(TabSwitcherMode, Model::TabSwitcherMode, _GlobalSettings.TabSwitcherMode);
         GETSET_BINDABLE_ENUM_SETTING(CopyFormat, winrt::Microsoft::Terminal::Control::CopyFormat, _GlobalSettings.CopyFormatting);
+        GETSET_BINDABLE_ENUM_SETTING(ConfirmOnClose, Model::ConfirmOnClose, _GlobalSettings.ConfirmOnClose);
 
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, CopyOnSelect);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, TrimBlockSelection);
@@ -30,7 +31,6 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, DetectURLs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, SearchWebDefaultQueryUrl);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, WordDelimiters);
-        PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ConfirmCloseAllTabs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, InputServiceWarning);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, WarnAboutLargePaste);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, WarnAboutMultiLinePaste);

src/cascadia/TerminalSettingsEditor/InteractionViewModel.idl

@@ -12,10 +12,13 @@ namespace Microsoft.Terminal.Settings.Editor
         InteractionViewModel(Microsoft.Terminal.Settings.Model.GlobalAppSettings globalSettings);
 
         IInspectable CurrentTabSwitcherMode;
-        Windows.Foundation.Collections.IObservableVector<Microsoft.Terminal.Settings.Editor.EnumEntry> TabSwitcherModeList { get; };
+        Windows.Foundation.Collections.IObservableVector<EnumEntry> TabSwitcherModeList { get; };
 
         IInspectable CurrentCopyFormat;
-        Windows.Foundation.Collections.IObservableVector<Microsoft.Terminal.Settings.Editor.EnumEntry> CopyFormatList { get; };
+        Windows.Foundation.Collections.IObservableVector<EnumEntry> CopyFormatList { get; };
+
+        IInspectable CurrentConfirmOnClose;
+        Windows.Foundation.Collections.IObservableVector<EnumEntry> ConfirmOnCloseList { get; };
 
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, CopyOnSelect);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, TrimBlockSelection);
@@ -27,7 +30,6 @@ namespace Microsoft.Terminal.Settings.Editor
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, DetectURLs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(String, SearchWebDefaultQueryUrl);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(String, WordDelimiters);
-        PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ConfirmCloseAllTabs);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, InputServiceWarning);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, WarnAboutLargePaste);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Microsoft.Terminal.Control.WarnAboutMultiLinePaste, WarnAboutMultiLinePaste);

src/cascadia/TerminalSettingsEditor/ProfileViewModel.cpp

@@ -106,6 +106,14 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
             {
                 _NotifyChanges(L"CurrentPathTranslationStyle");
             }
+            else if (viewModelProperty == L"NotifyOnActivity")
+            {
+                _NotifyChanges(L"IsNotifyOnActivityFlagSet", L"NotifyOnActivityPreview");
+            }
+            else if (viewModelProperty == L"NotifyOnNextPrompt")
+            {
+                _NotifyChanges(L"IsNotifyOnNextPromptFlagSet", L"NotifyOnNextPromptPreview");
+            }
             else if (viewModelProperty == L"Padding")
             {
                 _parsedPadding = StringToXamlThickness(_profile.Padding());
@@ -571,10 +579,11 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         return iconPath.empty() || iconPath == IconPicker::HideIconValue;
     }
 
+#pragma region BellStyle
     hstring ProfileViewModel::BellStylePreview() const
     {
         const auto bellStyle = BellStyle();
-        if (WI_AreAllFlagsSet(bellStyle, BellStyle::Audible | BellStyle::Window | BellStyle::Taskbar))
+        if (WI_AreAllFlagsSet(bellStyle, BellStyle::Audible | BellStyle::Window | BellStyle::Taskbar | BellStyle::Notification))
         {
             return RS_(L"Profile_BellStyleAll/Content");
         }
@@ -584,7 +593,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         }
 
         std::vector<hstring> resultList;
-        resultList.reserve(3);
+        resultList.reserve(4);
         if (WI_IsFlagSet(bellStyle, BellStyle::Audible))
         {
             resultList.emplace_back(RS_(L"Profile_BellStyleAudible/Content"));
@@ -597,6 +606,10 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         {
             resultList.emplace_back(RS_(L"Profile_BellStyleTaskbar/Content"));
         }
+        if (WI_IsFlagSet(bellStyle, BellStyle::Notification))
+        {
+            resultList.emplace_back(RS_(L"Profile_BellStyleNotification/Content"));
+        }
 
         // add in the commas
         hstring result{};
@@ -640,6 +653,154 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         BellStyle(currentStyle);
     }
 
+    void ProfileViewModel::SetBellStyleNotification(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = BellStyle();
+        WI_UpdateFlag(currentStyle, Model::BellStyle::Notification, winrt::unbox_value<bool>(on));
+        BellStyle(currentStyle);
+    }
+#pragma endregion
+
+#pragma region NotifyOnActivity
+    hstring ProfileViewModel::NotifyOnActivityPreview() const
+    {
+        using Ons = Control::OutputNotificationStyle;
+        const auto style = NotifyOnActivity();
+        if (WI_AreAllFlagsSet(style, Ons::Taskbar | Ons::Audible | Ons::Tab | Ons::Notification))
+        {
+            return RS_(L"Profile_OutputNotificationStyleAll/Content");
+        }
+        else if (style == Ons::None)
+        {
+            return RS_(L"Profile_OutputNotificationStyleNone/Content");
+        }
+
+        std::wstring result;
+        const auto appendIfFlagSet = [&](Ons flag, std::wstring_view resource) {
+            // WI_IsFlagSet requires a compile-time constant flag; `flag` is a runtime parameter here.
+            if ((WI_EnumValue(style) & WI_EnumValue(flag)) != 0)
+            {
+                if (!result.empty())
+                {
+                    result.append(L", ");
+                }
+                result.append(resource);
+            }
+        };
+
+        appendIfFlagSet(Ons::Taskbar, RS_(L"Profile_OutputNotificationStyleTaskbar/Content"));
+        appendIfFlagSet(Ons::Audible, RS_(L"Profile_OutputNotificationStyleAudible/Content"));
+        appendIfFlagSet(Ons::Tab, RS_(L"Profile_OutputNotificationStyleTab/Content"));
+        appendIfFlagSet(Ons::Notification, RS_(L"Profile_OutputNotificationStyleNotification/Content"));
+
+        return hstring{ result };
+    }
+
+    bool ProfileViewModel::IsNotifyOnActivityFlagSet(const uint32_t flag)
+    {
+        return (WI_EnumValue(NotifyOnActivity()) & flag) == flag;
+    }
+
+    void ProfileViewModel::SetNotifyOnActivityTaskbar(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnActivity();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Taskbar, winrt::unbox_value<bool>(on));
+        NotifyOnActivity(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnActivityAudible(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnActivity();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Audible, winrt::unbox_value<bool>(on));
+        NotifyOnActivity(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnActivityTab(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnActivity();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Tab, winrt::unbox_value<bool>(on));
+        NotifyOnActivity(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnActivityNotification(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnActivity();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Notification, winrt::unbox_value<bool>(on));
+        NotifyOnActivity(currentStyle);
+    }
+#pragma endregion
+
+#pragma region NotifyOnNextPrompt
+    hstring ProfileViewModel::NotifyOnNextPromptPreview() const
+    {
+        using Ons = Control::OutputNotificationStyle;
+        const auto style = NotifyOnNextPrompt();
+        if (WI_AreAllFlagsSet(style, Ons::Taskbar | Ons::Audible | Ons::Tab | Ons::Notification))
+        {
+            return RS_(L"Profile_OutputNotificationStyleAll/Content");
+        }
+        else if (style == Ons::None)
+        {
+            return RS_(L"Profile_OutputNotificationStyleNone/Content");
+        }
+
+        std::wstring result;
+        const auto appendIfFlagSet = [&](Ons flag, std::wstring_view resource) {
+            // WI_IsFlagSet requires a compile-time constant flag; `flag` is a runtime parameter here.
+            if ((WI_EnumValue(style) & WI_EnumValue(flag)) != 0)
+            {
+                if (!result.empty())
+                {
+                    result.append(L", ");
+                }
+                result.append(resource);
+            }
+        };
+
+        appendIfFlagSet(Ons::Taskbar, RS_(L"Profile_OutputNotificationStyleTaskbar/Content"));
+        appendIfFlagSet(Ons::Audible, RS_(L"Profile_OutputNotificationStyleAudible/Content"));
+        appendIfFlagSet(Ons::Tab, RS_(L"Profile_OutputNotificationStyleTab/Content"));
+        appendIfFlagSet(Ons::Notification, RS_(L"Profile_OutputNotificationStyleNotification/Content"));
+
+        return hstring{ result };
+    }
+
+    bool ProfileViewModel::IsNotifyOnNextPromptFlagSet(const uint32_t flag)
+    {
+        return (WI_EnumValue(NotifyOnNextPrompt()) & flag) == flag;
+    }
+
+    void ProfileViewModel::SetNotifyOnNextPromptTaskbar(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnNextPrompt();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Taskbar, winrt::unbox_value<bool>(on));
+        NotifyOnNextPrompt(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnNextPromptAudible(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnNextPrompt();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Audible, winrt::unbox_value<bool>(on));
+        NotifyOnNextPrompt(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnNextPromptTab(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnNextPrompt();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Tab, winrt::unbox_value<bool>(on));
+        NotifyOnNextPrompt(currentStyle);
+    }
+
+    void ProfileViewModel::SetNotifyOnNextPromptNotification(winrt::Windows::Foundation::IReference<bool> on)
+    {
+        auto currentStyle = NotifyOnNextPrompt();
+        WI_UpdateFlag(currentStyle, Control::OutputNotificationStyle::Notification, winrt::unbox_value<bool>(on));
+        NotifyOnNextPrompt(currentStyle);
+    }
+#pragma endregion
+
+#pragma region BellSound
+
     // Method Description:
     // - Construct _CurrentBellSounds by importing the _inherited_ value from the model
     // - Adds a PropertyChanged handler to each BellSoundViewModel to propagate changes to the model
@@ -777,6 +938,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
             _NotifyChanges(L"CurrentBellSounds");
         }
     }
+#pragma endregion
 
     void ProfileViewModel::DeleteProfile()
     {

src/cascadia/TerminalSettingsEditor/ProfileViewModel.h

@@ -46,6 +46,23 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         void SetBellStyleAudible(winrt::Windows::Foundation::IReference<bool> on);
         void SetBellStyleWindow(winrt::Windows::Foundation::IReference<bool> on);
         void SetBellStyleTaskbar(winrt::Windows::Foundation::IReference<bool> on);
+        void SetBellStyleNotification(winrt::Windows::Foundation::IReference<bool> on);
+
+        // notify on activity bits
+        hstring NotifyOnActivityPreview() const;
+        bool IsNotifyOnActivityFlagSet(const uint32_t flag);
+        void SetNotifyOnActivityTaskbar(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnActivityAudible(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnActivityTab(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnActivityNotification(winrt::Windows::Foundation::IReference<bool> on);
+
+        // notify on next prompt bits
+        hstring NotifyOnNextPromptPreview() const;
+        bool IsNotifyOnNextPromptFlagSet(const uint32_t flag);
+        void SetNotifyOnNextPromptTaskbar(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnNextPromptAudible(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnNextPromptTab(winrt::Windows::Foundation::IReference<bool> on);
+        void SetNotifyOnNextPromptNotification(winrt::Windows::Foundation::IReference<bool> on);
 
         hstring BellSoundPreview();
         void RequestAddBellSound(hstring path);
@@ -142,10 +159,14 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         OBSERVABLE_PROJECTED_SETTING(_profile, AllowKittyKeyboardMode);
         OBSERVABLE_PROJECTED_SETTING(_profile, AllowVtChecksumReport);
         OBSERVABLE_PROJECTED_SETTING(_profile, AllowVtClipboardWrite);
+        OBSERVABLE_PROJECTED_SETTING(_profile, AllowOscNotifications);
         OBSERVABLE_PROJECTED_SETTING(_profile, AnswerbackMessage);
         OBSERVABLE_PROJECTED_SETTING(_profile, RainbowSuggestions);
         OBSERVABLE_PROJECTED_SETTING(_profile, PathTranslationStyle);
         OBSERVABLE_PROJECTED_SETTING(_profile, DragDropDelimiter);
+        OBSERVABLE_PROJECTED_SETTING(_profile, NotifyOnActivity);
+        OBSERVABLE_PROJECTED_SETTING(_profile, NotifyOnNextPrompt);
+        OBSERVABLE_PROJECTED_SETTING(_profile, AutoDetectRunningCommand);
 
         WINRT_PROPERTY(bool, IsBaseLayer, false);
         WINRT_PROPERTY(bool, FocusDeleteButton, false);

src/cascadia/TerminalSettingsEditor/ProfileViewModel.idl

@@ -49,6 +49,21 @@ namespace Microsoft.Terminal.Settings.Editor
         void SetBellStyleAudible(Windows.Foundation.IReference<Boolean> on);
         void SetBellStyleWindow(Windows.Foundation.IReference<Boolean> on);
         void SetBellStyleTaskbar(Windows.Foundation.IReference<Boolean> on);
+        void SetBellStyleNotification(Windows.Foundation.IReference<Boolean> on);
+
+        String NotifyOnActivityPreview { get; };
+        Boolean IsNotifyOnActivityFlagSet(UInt32 flag);
+        void SetNotifyOnActivityTaskbar(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnActivityAudible(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnActivityTab(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnActivityNotification(Windows.Foundation.IReference<Boolean> on);
+
+        String NotifyOnNextPromptPreview { get; };
+        Boolean IsNotifyOnNextPromptFlagSet(UInt32 flag);
+        void SetNotifyOnNextPromptTaskbar(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnNextPromptAudible(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnNextPromptTab(Windows.Foundation.IReference<Boolean> on);
+        void SetNotifyOnNextPromptNotification(Windows.Foundation.IReference<Boolean> on);
 
         String BellSoundPreview { get; };
         Windows.Foundation.Collections.IObservableVector<BellSoundViewModel> CurrentBellSounds { get; };
@@ -141,5 +156,9 @@ namespace Microsoft.Terminal.Settings.Editor
         OBSERVABLE_PROJECTED_PROFILE_SETTING(Microsoft.Terminal.Control.PathTranslationStyle, PathTranslationStyle);
         OBSERVABLE_PROJECTED_PROFILE_SETTING(String, DragDropDelimiter);
         OBSERVABLE_PROJECTED_PROFILE_SETTING(Boolean, AllowVtClipboardWrite);
+        OBSERVABLE_PROJECTED_PROFILE_SETTING(Microsoft.Terminal.Control.OutputNotificationStyle, NotifyOnActivity);
+        OBSERVABLE_PROJECTED_PROFILE_SETTING(Microsoft.Terminal.Control.OutputNotificationStyle, NotifyOnNextPrompt);
+        OBSERVABLE_PROJECTED_PROFILE_SETTING(Boolean, AutoDetectRunningCommand);
+        OBSERVABLE_PROJECTED_PROFILE_SETTING(Boolean, AllowOscNotifications);
     }
 }

src/cascadia/TerminalSettingsEditor/Profiles_Advanced.xaml

@@ -111,6 +111,8 @@
                               IsChecked="{x:Bind Profile.IsBellStyleFlagSet(2), BindBack=Profile.SetBellStyleWindow, Mode=TwoWay}" />
                     <CheckBox x:Uid="Profile_BellStyleTaskbar"
                               IsChecked="{x:Bind Profile.IsBellStyleFlagSet(4), BindBack=Profile.SetBellStyleTaskbar, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_BellStyleNotification"
+                              IsChecked="{x:Bind Profile.IsBellStyleFlagSet(8), BindBack=Profile.SetBellStyleNotification, Mode=TwoWay}" />
                 </StackPanel>
             </local:SettingContainer>
 
@@ -196,6 +198,56 @@
                 </StackPanel>
             </local:SettingContainer>
 
+            <!--  Notify On Activity  -->
+            <local:SettingContainer x:Name="NotifyOnActivity"
+                                    x:Uid="Profile_NotifyOnActivity"
+                                    ClearSettingValue="{x:Bind Profile.ClearNotifyOnActivity}"
+                                    CurrentValue="{x:Bind Profile.NotifyOnActivityPreview, Mode=OneWay}"
+                                    HasSettingValue="{x:Bind Profile.HasNotifyOnActivity, Mode=OneWay}"
+                                    SettingOverrideSource="{x:Bind Profile.NotifyOnActivityOverrideSource, Mode=OneWay}"
+                                    Style="{StaticResource ExpanderSettingContainerStyle}">
+                <StackPanel>
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleTaskbar"
+                              IsChecked="{x:Bind Profile.IsNotifyOnActivityFlagSet(1), BindBack=Profile.SetNotifyOnActivityTaskbar, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleAudible"
+                              IsChecked="{x:Bind Profile.IsNotifyOnActivityFlagSet(2), BindBack=Profile.SetNotifyOnActivityAudible, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleTab"
+                              IsChecked="{x:Bind Profile.IsNotifyOnActivityFlagSet(4), BindBack=Profile.SetNotifyOnActivityTab, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleNotification"
+                              IsChecked="{x:Bind Profile.IsNotifyOnActivityFlagSet(8), BindBack=Profile.SetNotifyOnActivityNotification, Mode=TwoWay}" />
+                </StackPanel>
+            </local:SettingContainer>
+
+            <!--  Notify On Next Prompt  -->
+            <local:SettingContainer x:Name="NotifyOnNextPrompt"
+                                    x:Uid="Profile_NotifyOnNextPrompt"
+                                    ClearSettingValue="{x:Bind Profile.ClearNotifyOnNextPrompt}"
+                                    CurrentValue="{x:Bind Profile.NotifyOnNextPromptPreview, Mode=OneWay}"
+                                    HasSettingValue="{x:Bind Profile.HasNotifyOnNextPrompt, Mode=OneWay}"
+                                    SettingOverrideSource="{x:Bind Profile.NotifyOnNextPromptOverrideSource, Mode=OneWay}"
+                                    Style="{StaticResource ExpanderSettingContainerStyle}">
+                <StackPanel>
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleTaskbar"
+                              IsChecked="{x:Bind Profile.IsNotifyOnNextPromptFlagSet(1), BindBack=Profile.SetNotifyOnNextPromptTaskbar, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleAudible"
+                              IsChecked="{x:Bind Profile.IsNotifyOnNextPromptFlagSet(2), BindBack=Profile.SetNotifyOnNextPromptAudible, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleTab"
+                              IsChecked="{x:Bind Profile.IsNotifyOnNextPromptFlagSet(4), BindBack=Profile.SetNotifyOnNextPromptTab, Mode=TwoWay}" />
+                    <CheckBox x:Uid="Profile_OutputNotificationStyleNotification"
+                              IsChecked="{x:Bind Profile.IsNotifyOnNextPromptFlagSet(8), BindBack=Profile.SetNotifyOnNextPromptNotification, Mode=TwoWay}" />
+                </StackPanel>
+            </local:SettingContainer>
+
+            <!--  Auto Detect Running Command  -->
+            <local:SettingContainer x:Name="AutoDetectRunningCommand"
+                                    x:Uid="Profile_AutoDetectRunningCommand"
+                                    ClearSettingValue="{x:Bind Profile.ClearAutoDetectRunningCommand}"
+                                    HasSettingValue="{x:Bind Profile.HasAutoDetectRunningCommand, Mode=OneWay}"
+                                    SettingOverrideSource="{x:Bind Profile.AutoDetectRunningCommandOverrideSource, Mode=OneWay}">
+                <ToggleSwitch IsOn="{x:Bind Profile.AutoDetectRunningCommand, Mode=TwoWay}"
+                              Style="{StaticResource ToggleSwitchInExpanderStyle}" />
+            </local:SettingContainer>
+
             <!--  RightClickContextMenu  -->
             <local:SettingContainer x:Name="RightClickContextMenu"
                                     x:Uid="Profile_RightClickContextMenu"

src/cascadia/TerminalSettingsEditor/Profiles_Terminal.xaml

@@ -81,6 +81,16 @@
                               Style="{StaticResource ToggleSwitchInExpanderStyle}" />
             </local:SettingContainer>
 
+            <!--  Allow OSC 777 Desktop Notifications  -->
+            <local:SettingContainer x:Name="AllowOscNotifications"
+                                    x:Uid="Profile_AllowOscNotifications"
+                                    ClearSettingValue="{x:Bind Profile.ClearAllowOscNotifications}"
+                                    HasSettingValue="{x:Bind Profile.HasAllowOscNotifications, Mode=OneWay}"
+                                    SettingOverrideSource="{x:Bind Profile.AllowOscNotificationsOverrideSource, Mode=OneWay}">
+                <ToggleSwitch IsOn="{x:Bind Profile.AllowOscNotifications, Mode=TwoWay}"
+                              Style="{StaticResource ToggleSwitchInExpanderStyle}" />
+            </local:SettingContainer>
+
             <!--  Answerback Message  -->
             <local:SettingContainer x:Name="AnswerbackMessage"
                                     x:Uid="Profile_AnswerbackMessage"

src/cascadia/TerminalSettingsEditor/Resources/en-US/Resources.resw

@@ -573,6 +573,14 @@
     <value>Allow OSC 52 (Manipulate Selection Data) to write to the clipboard</value>
     <comment>{Locked="OSC 52"}{Locked="Manipulate Selection Data"}Header for a control to toggle support for applications to change the contents of the Windows system clipboard.</comment>
   </data>
+  <data name="Profile_AllowOscNotifications.Header" xml:space="preserve">
+    <value>Allow OSC 777 (Desktop Notification) to show toast notifications</value>
+    <comment>{Locked="OSC 777"}{Locked="Desktop Notification"}Header for a control to toggle support for applications to display desktop toast notifications via the OSC 777 escape sequence.</comment>
+  </data>
+  <data name="Profile_AllowOscNotifications.HelpText" xml:space="preserve">
+    <value>When enabled, applications can send the OSC 777 escape sequence to trigger a desktop notification with a custom title and body.</value>
+    <comment>{Locked="OSC 777"}Help text for the OSC 777 desktop notification toggle.</comment>
+  </data>
   <data name="Globals_AllowHeadless.Header" xml:space="preserve">
     <value>Allow Windows Terminal to run in the background</value>
     <comment>Header for a control to toggle support for Windows Terminal to run in the background.</comment>
@@ -1553,6 +1561,58 @@
     <value>Flash window</value>
     <comment>An option to choose from for the "bell style" setting. When selected, a visual notification is used to notify the user. In this case, the window is flashed.</comment>
   </data>
+  <data name="Profile_OutputNotificationStyleNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the notification style setting. When selected, no notification is sent.</comment>
+  </data>
+  <data name="Profile_OutputNotificationStyleAll.Content" xml:space="preserve">
+    <value>All</value>
+    <comment>An option to choose from for the notification style setting. When selected, all notification methods are used.</comment>
+  </data>
+  <data name="Profile_OutputNotificationStyleTaskbar.Content" xml:space="preserve">
+    <value>Flash taskbar</value>
+    <comment>An option to choose from for the notification style setting. Flashes the taskbar icon.</comment>
+  </data>
+  <data name="Profile_OutputNotificationStyleAudible.Content" xml:space="preserve">
+    <value>Play sound</value>
+    <comment>An option to choose from for the notification style setting. Plays an audible notification sound.</comment>
+  </data>
+  <data name="Profile_OutputNotificationStyleTab.Content" xml:space="preserve">
+    <value>Show tab indicator</value>
+    <comment>An option to choose from for the notification style setting. Shows an activity indicator on the tab.</comment>
+  </data>
+  <data name="Profile_OutputNotificationStyleNotification.Content" xml:space="preserve">
+    <value>Desktop notification</value>
+    <comment>An option to choose from for the notification style setting. Sends a Windows desktop notification (toast).</comment>
+  </data>
+  <data name="Profile_NotifyOnActivity.Header" xml:space="preserve">
+    <value>Notify on activity</value>
+    <comment>Header for a control to set the notification style when a background tab has new activity (output).</comment>
+  </data>
+  <data name="Profile_NotifyOnActivity.HelpText" xml:space="preserve">
+    <value>Choose how to be notified when a background tab produces new output.</value>
+    <comment>Help text for the notify on activity setting.</comment>
+  </data>
+  <data name="Profile_NotifyOnNextPrompt.Header" xml:space="preserve">
+    <value>Notify on next prompt</value>
+    <comment>Header for a control to set the notification style when a new shell prompt is detected (requires shell integration).</comment>
+  </data>
+  <data name="Profile_NotifyOnNextPrompt.HelpText" xml:space="preserve">
+    <value>Choose how to be notified when a command finishes and a new prompt appears. Requires shell integration.</value>
+    <comment>Help text for the notify on next prompt setting.</comment>
+  </data>
+  <data name="Profile_AutoDetectRunningCommand.Header" xml:space="preserve">
+    <value>Auto-detect running command</value>
+    <comment>Header for a control to configure automatic detection of a running command's progress state.</comment>
+  </data>
+  <data name="Profile_AutoDetectRunningCommand.HelpText" xml:space="preserve">
+    <value>Automatically show a progress indicator when a command is running. Requires shell integration.</value>
+    <comment>Help text for the auto-detect running command setting.</comment>
+  </data>
+  <data name="Profile_BellStyleNotification.Content" xml:space="preserve">
+    <value>Desktop notification</value>
+    <comment>An option to choose from for the "bell style" setting. When selected, a Windows desktop notification (toast) is sent to notify the user.</comment>
+  </data>
   <data name="ColorScheme_AddNewButton.Text" xml:space="preserve">
     <value>Add new</value>
     <comment>Button label that creates a new color scheme.</comment>
@@ -2197,6 +2257,26 @@
     <value>Warn when closing more than one tab</value>
     <comment>Header for a control to toggle whether to show a confirm dialog box when closing the application with multiple tabs open.</comment>
   </data>
+  <data name="Globals_ConfirmOnClose.Header" xml:space="preserve">
+    <value>Warn when closing</value>
+    <comment>Header for a dropdown controlling when to show a confirmation dialog before closing.</comment>
+  </data>
+  <data name="Globals_ConfirmOnClose.HelpText" xml:space="preserve">
+    <value>Controls when a confirmation dialog appears before closing tabs or windows. "Always" presents the dialog when closing any pane.</value>
+    <comment>Help text associated with Globals_ConfirmOnClose. "Always" refers to Globals_ConfirmOnCloseAlways.Content.</comment>
+  </data>
+  <data name="Globals_ConfirmOnCloseNever.Content" xml:space="preserve">
+    <value>Never</value>
+    <comment>Option associated with Globals_ConfirmOnClose. "Never" means that the system will never display a warning when closing.</comment>
+  </data>
+  <data name="Globals_ConfirmOnCloseAlways.Content" xml:space="preserve">
+    <value>Always</value>
+    <comment>Option associated with Globals_ConfirmOnClose. "Always" means that the system will always display a warning when closing.</comment>
+  </data>
+  <data name="Globals_ConfirmOnCloseAutomatic.Content" xml:space="preserve">
+    <value>Multiple tabs or panes</value>
+    <comment>Option associated with Globals_ConfirmOnClose. The system will display a warning when multiple tabs or panes are present.</comment>
+  </data>
   <data name="Globals_InputServiceWarning.Header" xml:space="preserve">
     <value>Warn when "Touch Keyboard and Handwriting Panel Service" is disabled</value>
   </data>
@@ -2593,6 +2673,14 @@
     <value>When enabled, the tab bar will be visible when the app is full screen.</value>
     <comment>A description for what the "show tabs in full screen" setting does.</comment>
   </data>
+  <data name="Globals_ShowPaneHeaders.Header" xml:space="preserve">
+    <value>Show pane title headers</value>
+    <comment>Header for a control to toggle if the app should show title headers above each pane when multiple panes are open.</comment>
+  </data>
+  <data name="Globals_ShowPaneHeaders.HelpText" xml:space="preserve">
+    <value>When enabled, a title header is shown above each pane when multiple panes are open.</value>
+    <comment>A description for what the "show pane headers" setting does. Presented near "Globals_ShowPaneHeaders.Header".</comment>
+  </data>
   <data name="Profile_PathTranslationStyle.[using:Windows.UI.Xaml.Automation]AutomationProperties.Name" xml:space="preserve">
     <value>Path translation</value>
     <comment>Name for a control to select how file and directory paths are translated.</comment>

src/cascadia/TerminalSettingsModel/ActionAndArgs.cpp

@@ -73,6 +73,8 @@ static constexpr std::string_view NewWindowKey{ "newWindow" };
 static constexpr std::string_view IdentifyWindowKey{ "identifyWindow" };
 static constexpr std::string_view IdentifyWindowsKey{ "identifyWindows" };
 static constexpr std::string_view RenameWindowKey{ "renameWindow" };
+static constexpr std::string_view OpenWorkspaceKey{ "openWorkspace" };
+
 static constexpr std::string_view OpenWindowRenamerKey{ "openWindowRenamer" };
 static constexpr std::string_view DisplayWorkingDirectoryKey{ "debugTerminalCwd" };
 static constexpr std::string_view SearchForTextKey{ "searchWeb" };

src/cascadia/TerminalSettingsModel/ActionArgs.cpp

@@ -40,6 +40,7 @@
 #include "PrevTabArgs.g.cpp"
 #include "NextTabArgs.g.cpp"
 #include "RenameWindowArgs.g.cpp"
+#include "OpenWorkspaceArgs.g.cpp"
 #include "SearchForTextArgs.g.cpp"
 #include "GlobalSummonArgs.g.cpp"
 #include "FocusPaneArgs.g.cpp"
@@ -795,6 +796,15 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         return RS_switchable_(L"ResetWindowNameCommandKey");
     }
 
+    winrt::hstring OpenWorkspaceArgs::GenerateName(const winrt::WARC::ResourceContext& context) const
+    {
+        if (!Name().empty())
+        {
+            return winrt::hstring{ RS_switchable_fmt(L"OpenWorkspaceCommandKey", Name()) };
+        }
+        return RS_switchable_(L"OpenWorkspaceDefaultCommandKey");
+    }
+
     winrt::hstring SearchForTextArgs::GenerateName(const winrt::WARC::ResourceContext& context) const
     {
         if (QueryUrl().empty())

src/cascadia/TerminalSettingsModel/ActionArgs.h

@@ -42,6 +42,7 @@
 #include "PrevTabArgs.g.h"
 #include "NextTabArgs.g.h"
 #include "RenameWindowArgs.g.h"
+#include "OpenWorkspaceArgs.g.h"
 #include "SearchForTextArgs.g.h"
 #include "GlobalSummonArgs.g.h"
 #include "FocusPaneArgs.g.h"
@@ -246,6 +247,10 @@ protected:                                                                  \
 #define RENAME_WINDOW_ARGS(X) \
     X(winrt::hstring, Name, "name", false, ArgTypeHint::None, L"")
 
+////////////////////////////////////////////////////////////////////////////////
+#define OPEN_WORKSPACE_ARGS(X) \
+    X(winrt::hstring, Name, "name", false, ArgTypeHint::None, L"")
+
 ////////////////////////////////////////////////////////////////////////////////
 #define SEARCH_FOR_TEXT_ARGS(X) \
     X(winrt::hstring, QueryUrl, "queryUrl", false, ArgTypeHint::None, L"")
@@ -940,6 +945,8 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 
     ACTION_ARGS_STRUCT(RenameWindowArgs, RENAME_WINDOW_ARGS);
 
+    ACTION_ARGS_STRUCT(OpenWorkspaceArgs, OPEN_WORKSPACE_ARGS);
+
     ACTION_ARGS_STRUCT(SearchForTextArgs, SEARCH_FOR_TEXT_ARGS);
 
     struct GlobalSummonArgs : public GlobalSummonArgsT<GlobalSummonArgs>
@@ -1059,6 +1066,7 @@ namespace winrt::Microsoft::Terminal::Settings::Model::factory_implementation
     BASIC_FACTORY(SetMaximizedArgs);
     BASIC_FACTORY(SetColorSchemeArgs);
     BASIC_FACTORY(RenameWindowArgs);
+    BASIC_FACTORY(OpenWorkspaceArgs);
     BASIC_FACTORY(ExecuteCommandlineArgs);
     BASIC_FACTORY(CloseOtherTabsArgs);
     BASIC_FACTORY(CloseTabsAfterArgs);

src/cascadia/TerminalSettingsModel/ActionArgs.idl

@@ -420,6 +420,12 @@ namespace Microsoft.Terminal.Settings.Model
         String Name { get; };
     };
 
+    [default_interface] runtimeclass OpenWorkspaceArgs : IActionArgs, IActionArgsDescriptorAccess
+    {
+        OpenWorkspaceArgs(String name);
+        String Name { get; };
+    };
+
     [default_interface] runtimeclass SearchForTextArgs : IActionArgs, IActionArgsDescriptorAccess
     {
         String QueryUrl { get; };

src/cascadia/TerminalSettingsModel/AllShortcutActions.h

@@ -113,7 +113,8 @@
     ON_ALL_ACTIONS(OpenScratchpad)          \
     ON_ALL_ACTIONS(OpenAbout)               \
     ON_ALL_ACTIONS(QuickFix)                \
-    ON_ALL_ACTIONS(OpenCWD)
+    ON_ALL_ACTIONS(OpenCWD)                  \
+    ON_ALL_ACTIONS(OpenWorkspace)
 
 #define ALL_SHORTCUT_ACTIONS_WITH_ARGS             \
     ON_ALL_ACTIONS_WITH_ARGS(AdjustFontSize)       \
@@ -158,7 +159,8 @@
     ON_ALL_ACTIONS_WITH_ARGS(Suggestions)          \
     ON_ALL_ACTIONS_WITH_ARGS(SelectCommand)        \
     ON_ALL_ACTIONS_WITH_ARGS(SelectOutput)         \
-    ON_ALL_ACTIONS_WITH_ARGS(ColorSelection)
+    ON_ALL_ACTIONS_WITH_ARGS(ColorSelection)       \
+    ON_ALL_ACTIONS_WITH_ARGS(OpenWorkspace)
 
 // These two macros here are for actions that we only use as internal currency.
 // They don't need to be parsed by the settings model, or saved as actions to

src/cascadia/TerminalSettingsModel/ApplicationState.cpp

@@ -20,6 +20,7 @@ static constexpr std::string_view TabLayoutKey{ "tabLayout" };
 static constexpr std::string_view InitialPositionKey{ "initialPosition" };
 static constexpr std::string_view InitialSizeKey{ "initialSize" };
 static constexpr std::string_view LaunchModeKey{ "launchMode" };
+static constexpr std::string_view PersistedWorkspacesKey{ "persistedWorkspaces" };
 
 namespace Microsoft::Terminal::Settings::Model::JsonUtils
 {
@@ -276,6 +277,10 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 
         MTSM_APPLICATION_STATE_FIELDS(MTSM_APPLICATION_STATE_GEN)
 #undef MTSM_APPLICATION_STATE_GEN
+
+        // Manually handled because IMap<K,V> has a comma that breaks the X-macro.
+        if (WI_IsFlagSet(parseSource, FileSource::Local))
+            state->PersistedWorkspaces = JsonUtils::GetValueForKey<std::optional<Windows::Foundation::Collections::IMap<hstring, Model::WindowLayout>>>(root, PersistedWorkspacesKey);
     }
 
     Json::Value ApplicationState::ToJson(FileSource parseSource) const noexcept
@@ -298,6 +303,10 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 
             MTSM_APPLICATION_STATE_FIELDS(MTSM_APPLICATION_STATE_GEN)
 #undef MTSM_APPLICATION_STATE_GEN
+
+            // Manually handled because IMap<K,V> has a comma that breaks the X-macro.
+            if (WI_IsFlagSet(parseSource, FileSource::Local))
+                JsonUtils::SetValueForKey(root, PersistedWorkspacesKey, state->PersistedWorkspaces);
         }
         return root;
     }
@@ -341,6 +350,114 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         return false;
     }
 
+    void ApplicationState::SaveWorkspace(const hstring& name, const Model::WindowLayout& layout)
+    {
+        {
+            const auto state = _state.lock();
+            if (!state->PersistedWorkspaces || !*state->PersistedWorkspaces)
+            {
+                state->PersistedWorkspaces = winrt::single_threaded_map<hstring, Model::WindowLayout>();
+            }
+            (*state->PersistedWorkspaces).Insert(name, layout);
+        }
+        _throttler();
+    }
+
+    bool ApplicationState::RemoveWorkspace(const hstring& name)
+    {
+        bool removed{ false };
+        {
+            const auto state = _state.lock();
+            if (state->PersistedWorkspaces && *state->PersistedWorkspaces)
+            {
+                auto map = *state->PersistedWorkspaces;
+                if (map.HasKey(name))
+                {
+                    map.Remove(name);
+                    removed = true;
+                }
+            }
+        }
+        if (removed)
+        {
+            _throttler();
+        }
+        return removed;
+    }
+
+    // Method Description:
+    // - Rename a persisted workspace entry from oldName to newName. If there
+    //   was no entry for oldName, this is a no-op. If an entry for newName
+    //   already exists, it will be overwritten with the layout from oldName.
+    // Return Value:
+    // - true if an entry was renamed, false otherwise.
+    bool ApplicationState::RenameWorkspace(const hstring& oldName, const hstring& newName)
+    {
+        if (oldName == newName || oldName.empty() || newName.empty())
+        {
+            return false;
+        }
+
+        bool renamed{ false };
+        {
+            const auto state = _state.lock();
+            if (state->PersistedWorkspaces && *state->PersistedWorkspaces)
+            {
+                auto map = *state->PersistedWorkspaces;
+                if (map.HasKey(oldName))
+                {
+                    const auto layout = map.Lookup(oldName);
+                    map.Insert(newName, layout);
+                    map.Remove(oldName);
+                    renamed = true;
+                }
+            }
+        }
+        if (renamed)
+        {
+            _throttler();
+        }
+        return renamed;
+    }
+
+    // Method Description:
+    // - Atomically remove and return a persisted workspace entry. This is the
+    //   intended API for the startup path that restores a named workspace,
+    //   because it guarantees only one caller can claim a given workspace.
+    // Return Value:
+    // - The layout that was stored under `name`, or nullptr if there was none.
+    Model::WindowLayout ApplicationState::TakeWorkspace(const hstring& name)
+    {
+        Model::WindowLayout result{ nullptr };
+        {
+            const auto state = _state.lock();
+            if (state->PersistedWorkspaces && *state->PersistedWorkspaces)
+            {
+                auto map = *state->PersistedWorkspaces;
+                if (map.HasKey(name))
+                {
+                    result = map.Lookup(name);
+                    map.Remove(name);
+                }
+            }
+        }
+        if (result)
+        {
+            _throttler();
+        }
+        return result;
+    }
+
+    Windows::Foundation::Collections::IMapView<hstring, Model::WindowLayout> ApplicationState::AllPersistedWorkspaces()
+    {
+        const auto state = _state.lock_shared();
+        if (state->PersistedWorkspaces && *state->PersistedWorkspaces)
+        {
+            return (*state->PersistedWorkspaces).GetView();
+        }
+        return nullptr;
+    }
+
     // Generate all getter/setters
 #define MTSM_APPLICATION_STATE_GEN(source, type, name, key, ...) \
     type ApplicationState::name() const noexcept                 \

src/cascadia/TerminalSettingsModel/ApplicationState.h

@@ -16,7 +16,7 @@ Abstract:
 #include "WindowLayout.g.h"
 
 #include <inc/cppwinrt_utils.h>
-#include <JsonUtils.h>
+#include "JsonUtils.h"
 
 namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 {
@@ -75,6 +75,12 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         bool DismissBadge(const hstring& badgeId);
         bool BadgeDismissed(const hstring& badgeId) const;
 
+        void SaveWorkspace(const hstring& name, const Model::WindowLayout& layout);
+        bool RemoveWorkspace(const hstring& name);
+        bool RenameWorkspace(const hstring& oldName, const hstring& newName);
+        Model::WindowLayout TakeWorkspace(const hstring& name);
+        Windows::Foundation::Collections::IMapView<hstring, Model::WindowLayout> AllPersistedWorkspaces();
+
         // State getters/setters
 #define MTSM_APPLICATION_STATE_GEN(source, type, name, key, ...) \
     type name() const noexcept;                                  \
@@ -88,6 +94,8 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
 #define MTSM_APPLICATION_STATE_GEN(source, type, name, key, ...) std::optional<type> name{ __VA_ARGS__ };
             MTSM_APPLICATION_STATE_FIELDS(MTSM_APPLICATION_STATE_GEN)
 #undef MTSM_APPLICATION_STATE_GEN
+            // Manually declared because IMap<K,V> has a comma that breaks the macro.
+            std::optional<Windows::Foundation::Collections::IMap<hstring, Model::WindowLayout>> PersistedWorkspaces;
         };
         til::shared_mutex<state_t> _state;
         std::filesystem::path _sharedPath;

src/cascadia/TerminalSettingsModel/ApplicationState.idl

@@ -36,6 +36,12 @@ namespace Microsoft.Terminal.Settings.Model
         Boolean DismissBadge(String badgeId);
         Boolean BadgeDismissed(String badgeId);
 
+        void SaveWorkspace(String name, WindowLayout layout);
+        Boolean RemoveWorkspace(String name);
+        Boolean RenameWorkspace(String oldName, String newName);
+        WindowLayout TakeWorkspace(String name);
+        Windows.Foundation.Collections.IMapView<String, WindowLayout> AllPersistedWorkspaces();
+
         String SettingsHash;
         Windows.Foundation.Collections.IVector<WindowLayout> PersistedWindowLayouts;
         Windows.Foundation.Collections.IVector<String> RecentCommands;

src/cascadia/TerminalSettingsModel/EnumMappings.cpp

@@ -43,6 +43,7 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
     DEFINE_ENUM_MAP(Microsoft::Terminal::Control::TextMeasurement, TextMeasurement);
     DEFINE_ENUM_MAP(Microsoft::Terminal::Control::AmbiguousWidth, AmbiguousWidth);
     DEFINE_ENUM_MAP(Microsoft::Terminal::Control::WarnAboutMultiLinePaste, WarnAboutMultiLinePaste);
+    DEFINE_ENUM_MAP(Model::ConfirmOnClose, ConfirmOnClose);
 
     // Profile Settings
     DEFINE_ENUM_MAP(Model::CloseOnExitMode, CloseOnExitMode);

src/cascadia/TerminalSettingsModel/EnumMappings.h

@@ -40,6 +40,7 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         static winrt::Windows::Foundation::Collections::IMap<winrt::hstring, winrt::Microsoft::Terminal::Control::TextMeasurement> TextMeasurement();
         static winrt::Windows::Foundation::Collections::IMap<winrt::hstring, winrt::Microsoft::Terminal::Control::AmbiguousWidth> AmbiguousWidth();
         static winrt::Windows::Foundation::Collections::IMap<winrt::hstring, winrt::Microsoft::Terminal::Control::WarnAboutMultiLinePaste> WarnAboutMultiLinePaste();
+        static winrt::Windows::Foundation::Collections::IMap<winrt::hstring, ConfirmOnClose> ConfirmOnClose();
 
         // Profile Settings
         static winrt::Windows::Foundation::Collections::IMap<winrt::hstring, CloseOnExitMode> CloseOnExitMode();

src/cascadia/TerminalSettingsModel/EnumMappings.idl

@@ -22,6 +22,7 @@ namespace Microsoft.Terminal.Settings.Model
         static Windows.Foundation.Collections.IMap<String, Microsoft.Terminal.Control.TextMeasurement> TextMeasurement { get; };
         static Windows.Foundation.Collections.IMap<String, Microsoft.Terminal.Control.AmbiguousWidth> AmbiguousWidth { get; };
         static Windows.Foundation.Collections.IMap<String, Microsoft.Terminal.Control.WarnAboutMultiLinePaste> WarnAboutMultiLinePaste { get; };
+        static Windows.Foundation.Collections.IMap<String, Microsoft.Terminal.Settings.Model.ConfirmOnClose> ConfirmOnClose { get; };
 
         // Profile Settings
         static Windows.Foundation.Collections.IMap<String, Microsoft.Terminal.Settings.Model.CloseOnExitMode> CloseOnExitMode { get; };

src/cascadia/TerminalSettingsModel/GlobalAppSettings.cpp

@@ -160,7 +160,16 @@ void GlobalAppSettings::LayerJson(const Json::Value& json, const OriginTag origi
     _fixupsAppliedDuringLoad = JsonUtils::GetValueForKey(json, LegacyInputServiceWarningKey, _InputServiceWarning) || _fixupsAppliedDuringLoad;
     _fixupsAppliedDuringLoad = JsonUtils::GetValueForKey(json, LegacyWarnAboutLargePasteKey, _WarnAboutLargePaste) || _fixupsAppliedDuringLoad;
     _fixupsAppliedDuringLoad = JsonUtils::GetValueForKey(json, LegacyWarnAboutMultiLinePasteKey, _WarnAboutMultiLinePaste) || _fixupsAppliedDuringLoad;
-    _fixupsAppliedDuringLoad = JsonUtils::GetValueForKey(json, LegacyConfirmCloseAllTabsKey, _ConfirmCloseAllTabs) || _fixupsAppliedDuringLoad;
+    // GH#6549 - Migrate legacy "confirmCloseAllTabs" boolean to the new
+    // "confirmOnClose" enum. true -> Automatic, false -> Never.
+    {
+        std::optional<bool> legacyConfirmClose;
+        if (JsonUtils::GetValueForKey(json, LegacyConfirmCloseAllTabsKey, legacyConfirmClose))
+        {
+            _ConfirmOnClose = legacyConfirmClose.value() ? ConfirmOnClose::Automatic : ConfirmOnClose::Never;
+            _fixupsAppliedDuringLoad = true;
+        }
+    }
 
 #define GLOBAL_SETTINGS_LAYER_JSON(type, name, jsonKey, ...) \
     JsonUtils::GetValueForKey(json, jsonKey, _##name);       \

src/cascadia/TerminalSettingsModel/GlobalAppSettings.idl

@@ -50,6 +50,13 @@ namespace Microsoft.Terminal.Settings.Model
         AfterCurrentTab,
     };
 
+    enum ConfirmOnClose
+    {
+        Never = 0,
+        Automatic = 1,
+        Always = 2,
+    };
+
     [default_interface] runtimeclass GlobalAppSettings {
         Guid DefaultProfile;
 
@@ -59,9 +66,10 @@ namespace Microsoft.Terminal.Settings.Model
         INHERITABLE_SETTING(Int32, InitialCols);
         INHERITABLE_SETTING(Boolean, AlwaysShowTabs);
         INHERITABLE_SETTING(Boolean, ShowTabsFullscreen);
+        INHERITABLE_SETTING(Boolean, ShowPaneHeaders);
         INHERITABLE_SETTING(NewTabPosition, NewTabPosition);
         INHERITABLE_SETTING(Boolean, ShowTitleInTitlebar);
-        INHERITABLE_SETTING(Boolean, ConfirmCloseAllTabs);
+        INHERITABLE_SETTING(ConfirmOnClose, ConfirmOnClose);
         INHERITABLE_SETTING(String, Language);
         INHERITABLE_SETTING(Microsoft.UI.Xaml.Controls.TabViewWidthMode, TabWidthMode);
         INHERITABLE_SETTING(Boolean, UseAcrylicInTabRow);

src/cascadia/TerminalSettingsModel/MTSMSettings.h

@@ -38,7 +38,7 @@ Author(s):
     X(bool, AlwaysShowTabs, "alwaysShowTabs", true)                                                                                                                                                   \
     X(Model::NewTabPosition, NewTabPosition, "newTabPosition", Model::NewTabPosition::AfterLastTab)                                                                                                   \
     X(bool, ShowTitleInTitlebar, "showTerminalTitleInTitlebar", true)                                                                                                                                 \
-    X(bool, ConfirmCloseAllTabs, "warning.confirmCloseAllTabs", true)                                                                                                                                 \
+    X(Model::ConfirmOnClose, ConfirmOnClose, "warning.confirmOnClose", Model::ConfirmOnClose::Automatic)                                                                                              \
     X(Model::ThemePair, Theme, "theme")                                                                                                                                                               \
     X(hstring, Language, "language")                                                                                                                                                                  \
     X(winrt::Microsoft::UI::Xaml::Controls::TabViewWidthMode, TabWidthMode, "tabWidthMode", winrt::Microsoft::UI::Xaml::Controls::TabViewWidthMode::Equal)                                            \
@@ -71,7 +71,8 @@ Author(s):
     X(winrt::Windows::Foundation::Collections::IVector<Model::NewTabMenuEntry>, NewTabMenu, "newTabMenu", winrt::single_threaded_vector<Model::NewTabMenuEntry>({ Model::RemainingProfilesEntry{} })) \
     X(bool, AllowHeadless, "compatibility.allowHeadless", false)                                                                                                                                      \
     X(hstring, SearchWebDefaultQueryUrl, "searchWebDefaultQueryUrl", L"https://www.bing.com/search?q=%22%s%22")                                                                                       \
-    X(bool, ShowTabsFullscreen, "showTabsFullscreen", false)
+    X(bool, ShowTabsFullscreen, "showTabsFullscreen", false)                                                                                                                                          \
+    X(bool, ShowPaneHeaders, "showPaneHeaders", true)
 
 // Also add these settings to:
 // * Profile.idl
@@ -79,37 +80,41 @@ Author(s):
 // * TerminalSettings.cpp: TerminalSettings::_ApplyProfileSettings
 // * IControlSettings.idl or ICoreSettings.idl
 // * ControlProperties.h
-#define MTSM_PROFILE_SETTINGS(X)                                                                                                                               \
-    X(int32_t, HistorySize, "historySize", DEFAULT_HISTORY_SIZE)                                                                                               \
-    X(bool, SnapOnInput, "snapOnInput", true)                                                                                                                  \
-    X(bool, AltGrAliasing, "altGrAliasing", true)                                                                                                              \
-    X(hstring, AnswerbackMessage, "answerbackMessage")                                                                                                         \
-    X(hstring, Commandline, "commandline", L"%SystemRoot%\\System32\\cmd.exe")                                                                                 \
-    X(Microsoft::Terminal::Control::ScrollbarState, ScrollState, "scrollbarState", Microsoft::Terminal::Control::ScrollbarState::Visible)                      \
-    X(Microsoft::Terminal::Control::TextAntialiasingMode, AntialiasingMode, "antialiasingMode", Microsoft::Terminal::Control::TextAntialiasingMode::Grayscale) \
-    X(hstring, StartingDirectory, "startingDirectory")                                                                                                         \
-    X(IMediaResource, Icon, "icon", implementation::MediaResource::FromString(L"\uE756"))                                                                      \
-    X(bool, SuppressApplicationTitle, "suppressApplicationTitle", false)                                                                                       \
-    X(guid, ConnectionType, "connectionType")                                                                                                                  \
-    X(CloseOnExitMode, CloseOnExit, "closeOnExit", CloseOnExitMode::Automatic)                                                                                 \
-    X(hstring, TabTitle, "tabTitle")                                                                                                                           \
-    X(Model::BellStyle, BellStyle, "bellStyle", BellStyle::Audible)                                                                                            \
-    X(IEnvironmentVariableMap, EnvironmentVariables, "environment", nullptr)                                                                                   \
-    X(bool, RightClickContextMenu, "rightClickContextMenu", false)                                                                                             \
-    X(Windows::Foundation::Collections::IVector<IMediaResource>, BellSound, "bellSound", nullptr)                                                              \
-    X(bool, Elevate, "elevate", false)                                                                                                                         \
-    X(bool, AutoMarkPrompts, "autoMarkPrompts", true)                                                                                                          \
-    X(bool, ShowMarks, "showMarksOnScrollbar", false)                                                                                                          \
-    X(bool, RepositionCursorWithMouse, "experimental.repositionCursorWithMouse", false)                                                                        \
-    X(bool, ReloadEnvironmentVariables, "compatibility.reloadEnvironmentVariables", true)                                                                      \
-    X(bool, RainbowSuggestions, "experimental.rainbowSuggestions", false)                                                                                      \
-    X(bool, ForceVTInput, "compatibility.input.forceVT", false)                                                                                                \
-    X(bool, AllowKittyKeyboardMode, "compatibility.kittyKeyboardMode", true)                                                                                   \
-    X(bool, AllowVtChecksumReport, "compatibility.allowDECRQCRA", false)                                                                                       \
-    X(bool, AllowVtClipboardWrite, "compatibility.allowOSC52", true)                                                                                           \
-    X(bool, AllowKeypadMode, "compatibility.allowDECNKM", false)                                                                                               \
-    X(hstring, DragDropDelimiter, "dragDropDelimiter", L" ")                                                                                                   \
-    X(Microsoft::Terminal::Control::PathTranslationStyle, PathTranslationStyle, "pathTranslationStyle", Microsoft::Terminal::Control::PathTranslationStyle::None)
+#define MTSM_PROFILE_SETTINGS(X)                                                                                                                                    \
+    X(int32_t, HistorySize, "historySize", DEFAULT_HISTORY_SIZE)                                                                                                    \
+    X(bool, SnapOnInput, "snapOnInput", true)                                                                                                                       \
+    X(bool, AltGrAliasing, "altGrAliasing", true)                                                                                                                   \
+    X(hstring, AnswerbackMessage, "answerbackMessage")                                                                                                              \
+    X(hstring, Commandline, "commandline", L"%SystemRoot%\\System32\\cmd.exe")                                                                                      \
+    X(Microsoft::Terminal::Control::ScrollbarState, ScrollState, "scrollbarState", Microsoft::Terminal::Control::ScrollbarState::Visible)                           \
+    X(Microsoft::Terminal::Control::TextAntialiasingMode, AntialiasingMode, "antialiasingMode", Microsoft::Terminal::Control::TextAntialiasingMode::Grayscale)      \
+    X(hstring, StartingDirectory, "startingDirectory")                                                                                                              \
+    X(IMediaResource, Icon, "icon", implementation::MediaResource::FromString(L"\uE756"))                                                                           \
+    X(bool, SuppressApplicationTitle, "suppressApplicationTitle", false)                                                                                            \
+    X(guid, ConnectionType, "connectionType")                                                                                                                       \
+    X(CloseOnExitMode, CloseOnExit, "closeOnExit", CloseOnExitMode::Automatic)                                                                                      \
+    X(hstring, TabTitle, "tabTitle")                                                                                                                                \
+    X(Model::BellStyle, BellStyle, "bellStyle", BellStyle::Audible)                                                                                                 \
+    X(IEnvironmentVariableMap, EnvironmentVariables, "environment", nullptr)                                                                                        \
+    X(bool, RightClickContextMenu, "rightClickContextMenu", false)                                                                                                  \
+    X(Windows::Foundation::Collections::IVector<IMediaResource>, BellSound, "bellSound", nullptr)                                                                   \
+    X(bool, Elevate, "elevate", false)                                                                                                                              \
+    X(bool, AutoMarkPrompts, "autoMarkPrompts", true)                                                                                                               \
+    X(bool, ShowMarks, "showMarksOnScrollbar", false)                                                                                                               \
+    X(bool, RepositionCursorWithMouse, "experimental.repositionCursorWithMouse", false)                                                                             \
+    X(bool, ReloadEnvironmentVariables, "compatibility.reloadEnvironmentVariables", true)                                                                           \
+    X(bool, RainbowSuggestions, "experimental.rainbowSuggestions", false)                                                                                           \
+    X(bool, ForceVTInput, "compatibility.input.forceVT", false)                                                                                                     \
+    X(bool, AllowKittyKeyboardMode, "compatibility.kittyKeyboardMode", true)                                                                                        \
+    X(bool, AllowVtChecksumReport, "compatibility.allowDECRQCRA", false)                                                                                            \
+    X(bool, AllowVtClipboardWrite, "compatibility.allowOSC52", true)                                                                                                \
+    X(bool, AllowOscNotifications, "compatibility.allowOSC777", false)                                                                                              \
+    X(bool, AllowKeypadMode, "compatibility.allowDECNKM", false)                                                                                                    \
+    X(hstring, DragDropDelimiter, "dragDropDelimiter", L" ")                                                                                                        \
+    X(Microsoft::Terminal::Control::PathTranslationStyle, PathTranslationStyle, "pathTranslationStyle", Microsoft::Terminal::Control::PathTranslationStyle::None)   \
+    X(Microsoft::Terminal::Control::OutputNotificationStyle, NotifyOnActivity, "notifyOnActivity", Microsoft::Terminal::Control::OutputNotificationStyle::None)     \
+    X(Microsoft::Terminal::Control::OutputNotificationStyle, NotifyOnNextPrompt, "notifyOnNextPrompt", Microsoft::Terminal::Control::OutputNotificationStyle::None) \
+    X(bool, AutoDetectRunningCommand, "autoDetectRunningCommand", false)
 
 // Intentionally omitted Profile settings:
 // * Name
@@ -160,7 +165,8 @@ Author(s):
     X(winrt::Microsoft::Terminal::Settings::Model::ThemeColor, Frame, "frame", nullptr)                                            \
     X(winrt::Microsoft::Terminal::Settings::Model::ThemeColor, UnfocusedFrame, "unfocusedFrame", nullptr)                          \
     X(bool, RainbowFrame, "experimental.rainbowFrame", false)                                                                      \
-    X(bool, UseMica, "useMica", false)
+    X(bool, UseMica, "useMica", false)                                                                                             \
+    X(bool, ShowWindowsButton, "showWindowsButton", true)
 
 #define MTSM_THEME_SETTINGS_SETTINGS(X) \
     X(winrt::Windows::UI::Xaml::ElementTheme, RequestedTheme, "theme", winrt::Windows::UI::Xaml::ElementTheme::Default)

src/cascadia/TerminalSettingsModel/Profile.idl

@@ -29,6 +29,7 @@ namespace Microsoft.Terminal.Settings.Model
         Audible = 0x1,
         Window = 0x2,
         Taskbar = 0x4,
+        Notification = 0x8,
         All = 0xffffffff
     };
 
@@ -92,8 +93,12 @@ namespace Microsoft.Terminal.Settings.Model
         INHERITABLE_PROFILE_SETTING(Boolean, AllowVtChecksumReport);
         INHERITABLE_PROFILE_SETTING(Boolean, AllowKeypadMode);
         INHERITABLE_PROFILE_SETTING(Boolean, AllowVtClipboardWrite);
+        INHERITABLE_PROFILE_SETTING(Boolean, AllowOscNotifications);
 
         INHERITABLE_PROFILE_SETTING(Microsoft.Terminal.Control.PathTranslationStyle, PathTranslationStyle);
         INHERITABLE_PROFILE_SETTING(String, DragDropDelimiter);
+        INHERITABLE_PROFILE_SETTING(Microsoft.Terminal.Control.OutputNotificationStyle, NotifyOnActivity);
+        INHERITABLE_PROFILE_SETTING(Microsoft.Terminal.Control.OutputNotificationStyle, NotifyOnNextPrompt);
+        INHERITABLE_PROFILE_SETTING(Boolean, AutoDetectRunningCommand);
     }
 }

src/cascadia/TerminalSettingsModel/Resources/en-US/Resources.resw

@@ -518,6 +518,13 @@
   <data name="ResetWindowNameCommandKey" xml:space="preserve">
     <value>Reset window name</value>
   </data>
+  <data name="OpenWorkspaceCommandKey" xml:space="preserve">
+    <value>Open workspace "{0}"</value>
+    <comment>{0} will be replaced with the workspace name</comment>
+  </data>
+  <data name="OpenWorkspaceDefaultCommandKey" xml:space="preserve">
+    <value>Open workspace</value>
+  </data>
   <data name="OpenWindowRenamerCommandKey" xml:space="preserve">
     <value>Rename window...</value>
   </data>
@@ -702,7 +709,7 @@
     <comment>When enabled, input will go to all panes in this tab simultaneously</comment>
   </data>
   <data name="RestartConnectionKey" xml:space="preserve">
-    <value>Restart connection</value>
+    <value>Restart session</value>
   </data>
   <data name="OpenScratchpadKey" xml:space="preserve">
     <value>Open scratchpad</value>

src/cascadia/TerminalSettingsModel/TerminalSettingsSerializationHelpers.h

@@ -88,14 +88,34 @@ JSON_ENUM_MAPPER(::winrt::Microsoft::Terminal::Core::MatchMode)
     };
 };
 
+JSON_ENUM_MAPPER(::winrt::Microsoft::Terminal::Settings::Model::ConfirmOnClose)
+{
+    JSON_MAPPINGS(3) = {
+        pair_type{ "never", ValueType::Never },
+        pair_type{ "automatic", ValueType::Automatic },
+        pair_type{ "always", ValueType::Always },
+    };
+
+    auto FromJson(const Json::Value& json)
+    {
+        return BaseEnumMapper::FromJson(json);
+    }
+
+    bool CanConvert(const Json::Value& json)
+    {
+        return BaseEnumMapper::CanConvert(json);
+    }
+};
+
 JSON_FLAG_MAPPER(::winrt::Microsoft::Terminal::Settings::Model::BellStyle)
 {
-    static constexpr std::array<pair_type, 6> mappings = {
+    static constexpr std::array<pair_type, 7> mappings = {
         pair_type{ "none", AllClear },
         pair_type{ "audible", ValueType::Audible },
         pair_type{ "visual", ValueType::Window | ValueType::Taskbar },
         pair_type{ "window", ValueType::Window },
         pair_type{ "taskbar", ValueType::Taskbar },
+        pair_type{ "notification", ValueType::Notification },
         pair_type{ "all", AllSet },
     };
 
@@ -119,6 +139,37 @@ JSON_FLAG_MAPPER(::winrt::Microsoft::Terminal::Settings::Model::BellStyle)
     }
 };
 
+JSON_FLAG_MAPPER(::winrt::Microsoft::Terminal::Control::OutputNotificationStyle)
+{
+    static constexpr std::array<pair_type, 6> mappings = {
+        pair_type{ "none", AllClear },
+        pair_type{ "taskbar", ValueType::Taskbar },
+        pair_type{ "audible", ValueType::Audible },
+        pair_type{ "tab", ValueType::Tab },
+        pair_type{ "notification", ValueType::Notification },
+        pair_type{ "all", AllSet },
+    };
+
+    auto FromJson(const Json::Value& json)
+    {
+        if (json.isBool())
+        {
+            return json.asBool() ? ValueType::Tab : AllClear;
+        }
+        return BaseFlagMapper::FromJson(json);
+    }
+
+    bool CanConvert(const Json::Value& json)
+    {
+        return BaseFlagMapper::CanConvert(json) || json.isBool();
+    }
+
+    Json::Value ToJson(const ::winrt::Microsoft::Terminal::Control::OutputNotificationStyle& style)
+    {
+        return BaseFlagMapper::ToJson(style);
+    }
+};
+
 JSON_ENUM_MAPPER(::winrt::Microsoft::Terminal::Settings::Model::ConvergedAlignment)
 {
     // reduce repetition

src/cascadia/TerminalSettingsModel/Theme.idl

@@ -62,6 +62,7 @@ namespace Microsoft.Terminal.Settings.Model
         Windows.UI.Xaml.ElementTheme RequestedTheme { get; };
         Boolean UseMica { get; };
         Boolean RainbowFrame { get; };
+        Boolean ShowWindowsButton { get; };
         ThemeColor Frame { get; };
         ThemeColor UnfocusedFrame { get; };
     }

src/cascadia/TerminalSettingsModel/defaults.json

@@ -24,7 +24,7 @@
     "showAdminShield": true,
 
     // Miscellaneous
-    "confirmCloseAllTabs": true,
+    "warning.confirmOnClose": "automatic",
     "theme": "dark",
     "snapToGridOnResize": true,
     "disableAnimations": false,

src/cascadia/UnitTests_SettingsModel/ApplicationStateTests.cpp

@@ -0,0 +1,127 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#include "pch.h"
+
+#include "../TerminalSettingsModel/ApplicationState.h"
+
+using namespace Microsoft::Console;
+using namespace WEX::Logging;
+using namespace WEX::TestExecution;
+using namespace WEX::Common;
+using namespace winrt::Microsoft::Terminal::Settings::Model;
+
+namespace SettingsModelUnitTests
+{
+    // Covers the workspace-persistence APIs added to ApplicationState:
+    //   SaveWorkspace / RemoveWorkspace / RenameWorkspace / TakeWorkspace /
+    //   AllPersistedWorkspaces.
+    // All tests operate on a throw-away ApplicationState instance pointed at
+    // a temp directory, so they don't touch the real user state.
+    class ApplicationStateTests
+    {
+        TEST_CLASS(ApplicationStateTests);
+
+        TEST_METHOD(SaveAndLookupWorkspace);
+        TEST_METHOD(RemoveWorkspaceReturnsFalseWhenMissing);
+        TEST_METHOD(RenameWorkspaceMigratesEntry);
+        TEST_METHOD(RenameWorkspaceNoOpForEmptyOrEqualNames);
+        TEST_METHOD(RenameWorkspaceNoOpForMissingEntry);
+        TEST_METHOD(TakeWorkspaceRemovesAndReturns);
+        TEST_METHOD(TakeWorkspaceReturnsNullWhenMissing);
+
+    private:
+        static std::filesystem::path _tempRoot()
+        {
+            auto root = std::filesystem::temp_directory_path() / L"WT_ApplicationStateTests";
+            std::error_code ec;
+            std::filesystem::create_directories(root, ec);
+            // Best-effort clean of any leftover state.json from a prior run so
+            // tests see an empty starting point.
+            std::filesystem::remove(root / L"state.json", ec);
+            std::filesystem::remove(root / L"elevated-state.json", ec);
+            return root;
+        }
+
+        static winrt::com_ptr<implementation::ApplicationState> _make()
+        {
+            return winrt::make_self<implementation::ApplicationState>(_tempRoot());
+        }
+
+        static WindowLayout _makeLayout()
+        {
+            WindowLayout layout;
+            layout.TabLayout(winrt::single_threaded_vector<ActionAndArgs>());
+            return layout;
+        }
+    };
+
+    void ApplicationStateTests::SaveAndLookupWorkspace()
+    {
+        auto state = _make();
+        const auto layout = _makeLayout();
+        state->SaveWorkspace(L"win1", layout);
+
+        const auto all = state->AllPersistedWorkspaces();
+        VERIFY_IS_NOT_NULL(all);
+        VERIFY_IS_TRUE(all.HasKey(L"win1"));
+    }
+
+    void ApplicationStateTests::RemoveWorkspaceReturnsFalseWhenMissing()
+    {
+        auto state = _make();
+        VERIFY_IS_FALSE(state->RemoveWorkspace(L"does-not-exist"));
+
+        state->SaveWorkspace(L"win1", _makeLayout());
+        VERIFY_IS_TRUE(state->RemoveWorkspace(L"win1"));
+        VERIFY_IS_FALSE(state->RemoveWorkspace(L"win1"));
+    }
+
+    void ApplicationStateTests::RenameWorkspaceMigratesEntry()
+    {
+        auto state = _make();
+        state->SaveWorkspace(L"oldName", _makeLayout());
+
+        VERIFY_IS_TRUE(state->RenameWorkspace(L"oldName", L"newName"));
+
+        const auto all = state->AllPersistedWorkspaces();
+        VERIFY_IS_NOT_NULL(all);
+        VERIFY_IS_FALSE(all.HasKey(L"oldName"));
+        VERIFY_IS_TRUE(all.HasKey(L"newName"));
+    }
+
+    void ApplicationStateTests::RenameWorkspaceNoOpForEmptyOrEqualNames()
+    {
+        auto state = _make();
+        state->SaveWorkspace(L"win1", _makeLayout());
+
+        VERIFY_IS_FALSE(state->RenameWorkspace(L"win1", L"win1"));
+        VERIFY_IS_FALSE(state->RenameWorkspace(L"", L"win2"));
+        VERIFY_IS_FALSE(state->RenameWorkspace(L"win1", L""));
+    }
+
+    void ApplicationStateTests::RenameWorkspaceNoOpForMissingEntry()
+    {
+        auto state = _make();
+        VERIFY_IS_FALSE(state->RenameWorkspace(L"missing", L"newName"));
+    }
+
+    void ApplicationStateTests::TakeWorkspaceRemovesAndReturns()
+    {
+        auto state = _make();
+        state->SaveWorkspace(L"win1", _makeLayout());
+
+        const auto taken = state->TakeWorkspace(L"win1");
+        VERIFY_IS_NOT_NULL(taken);
+
+        // Subsequent Take for the same name must return null — this is the
+        // atomicity guarantee the startup path relies on.
+        VERIFY_IS_NULL(state->TakeWorkspace(L"win1"));
+    }
+
+    void ApplicationStateTests::TakeWorkspaceReturnsNullWhenMissing()
+    {
+        auto state = _make();
+        VERIFY_IS_NULL(state->TakeWorkspace(L"missing"));
+    }
+}