Setting for hide window when it loses focus (#13478)

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## Summary of the Pull Request
Added setting for for hide window when it loses focus.
Works on normal window and quake window.

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## References

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## PR Checklist
* [x] Closes #10660
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [ ] Schema updated.
* [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

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## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

- Enable **Settings > Appearance > Automatically hide window**
- Terminal window should be minimized on taskbar when it loses focus
- Quake window should be minimized on system tray when it loses focus
- Enable also **Settings > Appearance > Hide Terminal in the notification area when it is minimized**
- Terminal window should be minimized on system tray when it loses focus
- Quake window should be minimized on system tray when it loses focus

doc/cascadia/profiles.schema.json

@@ -1968,6 +1968,11 @@
             "useAnyExisting"
           ],
           "type": "string"
+        },
+        "autoHideWindow": {
+          "default": false,
+          "description": "If enabled, Terminal window will be hidden as soon as it loses focus.",
+          "type": "boolean"
         }
       },
       "required": [

src/cascadia/TerminalApp/AppLogic.cpp

@@ -1500,6 +1500,17 @@ namespace winrt::TerminalApp::implementation
         return _root ? _root->AlwaysOnTop() : false;
     }
 
+    bool AppLogic::AutoHideWindow()
+    {
+        if (!_loadedInitialSettings)
+        {
+            // Load settings if we haven't already
+            LoadSettings();
+        }
+
+        return _settings.GlobalSettings().AutoHideWindow();
+    }
+
     Windows::Foundation::Collections::IMapView<Microsoft::Terminal::Control::KeyChord, Microsoft::Terminal::Settings::Model::Command> AppLogic::GlobalHotkeys()
     {
         return _settings.GlobalSettings().ActionMap().GlobalHotkeys();

src/cascadia/TerminalApp/AppLogic.h

@@ -79,6 +79,7 @@ namespace winrt::TerminalApp::implementation
         bool Fullscreen() const;
         void Maximized(bool newMaximized);
         bool AlwaysOnTop() const;
+        bool AutoHideWindow();
 
         bool ShouldUsePersistedLayout();
         bool ShouldImmediatelyHandoffToElevated();

src/cascadia/TerminalApp/AppLogic.idl

@@ -70,6 +70,7 @@ namespace TerminalApp
         Boolean Fullscreen { get; };
         void Maximized(Boolean newMaximized); 
         Boolean AlwaysOnTop { get; };
+        Boolean AutoHideWindow { get; };
 
         void IdentifyWindow();
         String WindowName;

src/cascadia/TerminalSettingsEditor/GlobalAppearance.xaml

@@ -120,6 +120,12 @@
                 <ToggleSwitch IsOn="{x:Bind ViewModel.MinimizeToNotificationArea, Mode=TwoWay}"
                               Style="{StaticResource ToggleSwitchInExpanderStyle}" />
             </local:SettingContainer>
+
+            <!--  Automatically hide window  -->
+            <local:SettingContainer x:Uid="Globals_AutoHideWindow">
+                <ToggleSwitch IsOn="{x:Bind ViewModel.AutoHideWindow, Mode=TwoWay}"
+                              Style="{StaticResource ToggleSwitchInExpanderStyle}" />
+            </local:SettingContainer>
         </StackPanel>
     </ScrollViewer>
 </Page>

src/cascadia/TerminalSettingsEditor/GlobalAppearanceViewModel.h

@@ -42,6 +42,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, UseAcrylicInTabRow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, ShowTitleInTitlebar);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, AlwaysOnTop);
+        PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, AutoHideWindow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, AlwaysShowNotificationIcon);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(_GlobalSettings, MinimizeToNotificationArea);
 

src/cascadia/TerminalSettingsEditor/GlobalAppearanceViewModel.idl

@@ -33,6 +33,7 @@ namespace Microsoft.Terminal.Settings.Editor
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, UseAcrylicInTabRow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, ShowTitleInTitlebar);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, AlwaysOnTop);
+        PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, AutoHideWindow);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, AlwaysShowNotificationIcon);
         PERMANENT_OBSERVABLE_PROJECTED_SETTING(Boolean, MinimizeToNotificationArea);
     }

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

@@ -317,7 +317,6 @@
   </data>
   <data name="Globals_FirstWindowPreference.HelpText" xml:space="preserve">
     <value>What should be shown when the first terminal is created.</value>
-    <comment></comment>
   </data>
   <data name="Globals_FirstWindowPreferenceDefaultProfile.Content" xml:space="preserve">
     <value>Open a tab with the default profile</value>
@@ -1450,4 +1449,12 @@
     <value>Bold font with bright colors</value>
     <comment>An option to choose from for the "intense text format" setting. When selected, "intense" text will be rendered as both bold text and in a brighter color</comment>
   </data>
-</root>
+  <data name="Globals_AutoHideWindow.Header" xml:space="preserve">
+    <value>Automatically hide window</value>
+    <comment>Header for a control to toggle the "Automatically hide window" setting. If enabled, the window will be hidden as soon as it loses focus.</comment>
+  </data>
+  <data name="Globals_AutoHideWindow.HelpText" xml:space="preserve">
+    <value>If enabled, the window will be hidden as soon as it loses focus.</value>
+    <comment>A description for what the "Automatically hide window" setting does.</comment>
+  </data>
+</root>

src/cascadia/TerminalSettingsModel/GlobalAppSettings.idl

@@ -82,6 +82,7 @@ namespace Microsoft.Terminal.Settings.Model
         INHERITABLE_SETTING(Boolean, DebugFeaturesEnabled);
         INHERITABLE_SETTING(Boolean, StartOnUserLogin);
         INHERITABLE_SETTING(Boolean, AlwaysOnTop);
+        INHERITABLE_SETTING(Boolean, AutoHideWindow);
         INHERITABLE_SETTING(TabSwitcherMode, TabSwitcherMode);
         INHERITABLE_SETTING(Boolean, DisableAnimations);
         INHERITABLE_SETTING(String, StartupActions);

src/cascadia/TerminalSettingsModel/MTSMSettings.h

@@ -51,6 +51,7 @@ Author(s):
     X(bool, DebugFeaturesEnabled, "debugFeatures", debugFeaturesDefault)                                                                                   \
     X(bool, StartOnUserLogin, "startOnUserLogin", false)                                                                                                   \
     X(bool, AlwaysOnTop, "alwaysOnTop", false)                                                                                                             \
+    X(bool, AutoHideWindow, "autoHideWindow", false)                                                                                                       \
     X(Model::TabSwitcherMode, TabSwitcherMode, "tabSwitcherMode", Model::TabSwitcherMode::InOrder)                                                         \
     X(bool, DisableAnimations, "disableAnimations", false)                                                                                                 \
     X(hstring, StartupActions, "startupActions", L"")                                                                                                      \

src/cascadia/WindowsTerminal/AppHost.cpp

@@ -103,6 +103,7 @@ AppHost::AppHost() noexcept :
     _window->ShouldExitFullscreen({ &_logic, &winrt::TerminalApp::AppLogic::RequestExitFullscreen });
 
     _window->SetAlwaysOnTop(_logic.GetInitialAlwaysOnTop());
+    _window->SetAutoHideWindow(_logic.AutoHideWindow());
 
     _window->MakeWindow();
 
@@ -1393,6 +1394,7 @@ void AppHost::_HandleSettingsChanged(const winrt::Windows::Foundation::IInspecta
     }
 
     _window->SetMinimizeToNotificationAreaBehavior(_logic.GetMinimizeToNotificationArea());
+    _window->SetAutoHideWindow(_logic.AutoHideWindow());
     _updateTheme();
 }
 

src/cascadia/WindowsTerminal/IslandWindow.cpp

@@ -442,6 +442,18 @@ long IslandWindow::_calculateTotalSize(const bool isWidth, const long clientSize
         const bool activated = LOWORD(wparam) != 0;
         _WindowActivatedHandlers(activated);
 
+        if (_autoHideWindow && !activated)
+        {
+            if (_isQuakeWindow || _minimizeToNotificationArea)
+            {
+                HideWindow();
+            }
+            else
+            {
+                ShowWindow(GetHandle(), SW_MINIMIZE);
+            }
+        }
+
         break;
     }
 
@@ -1626,6 +1638,11 @@ void IslandWindow::IsQuakeWindow(bool isQuakeWindow) noexcept
     }
 }
 
+void IslandWindow::SetAutoHideWindow(bool autoHideWindow) noexcept
+{
+    _autoHideWindow = autoHideWindow;
+}
+
 // Method Description:
 // - Enter quake mode for the monitor this window is currently on. This involves
 //   resizing it to the top half of the monitor.

src/cascadia/WindowsTerminal/IslandWindow.h

@@ -55,6 +55,7 @@ class IslandWindow :
 
     bool IsQuakeWindow() const noexcept;
     void IsQuakeWindow(bool isQuakeWindow) noexcept;
+    void SetAutoHideWindow(bool autoHideWindow) noexcept;
 
     void HideWindow();
 
@@ -135,6 +136,7 @@ class IslandWindow :
     void _moveToMonitor(const MONITORINFO activeMonitor);
 
     bool _isQuakeWindow{ false };
+    bool _autoHideWindow{ false };
 
     void _enterQuakeMode();
     til::rect _getQuakeModeSize(HMONITOR hmon);