feat(bar/dock): add 'Hide When Fullscreen' opt-out toggles (#2349)

Adds per-bar 'fullscreenDetection' and global 'dockHideOnFullscreen'
settings to gate CompositorService.hasFullscreenToplevelOnScreen()

quickshell/Modules/DankBar/DankBarWindow.qml

@@ -310,6 +310,10 @@ PanelWindow {
     }
 
     function _updateHasFullscreenToplevel() {
+        if (!(barConfig?.fullscreenDetection ?? true)) {
+            hasFullscreenToplevel = false;
+            return;
+        }
         hasFullscreenToplevel = CompositorService.hasFullscreenToplevelOnScreen(screenName);
     }
 
@@ -593,6 +597,7 @@ PanelWindow {
             barWindow.updateGpuTempConfig();
             barWindow._updateBackgroundAlpha();
             barWindow._updateHasMaximizedToplevel();
+            barWindow._updateHasFullscreenToplevel();
             barWindow._updateShouldHideForWindows();
         }
 

quickshell/Modules/Dock/Dock.qml

@@ -164,6 +164,8 @@ Variants {
 
         readonly property string _dockScreenName: dock.modelData ? dock.modelData.name : (dock.screen ? dock.screen.name : "")
         readonly property bool hasFullscreenToplevel: {
+            if (!SettingsData.dockHideOnFullscreen)
+                return false;
             CompositorService.sortedToplevels;
             ToplevelManager.activeToplevel;
             if (CompositorService.isNiri) {

quickshell/Modules/Settings/DankBarTab.qml

@@ -136,6 +136,7 @@ Item {
             popupGapsAuto: defaultBar.popupGapsAuto ?? true,
             popupGapsManual: defaultBar.popupGapsManual ?? 4,
             maximizeDetection: defaultBar.maximizeDetection ?? true,
+            fullscreenDetection: defaultBar.fullscreenDetection ?? true,
             scrollEnabled: defaultBar.scrollEnabled ?? true,
             scrollXBehavior: defaultBar.scrollXBehavior ?? "column",
             scrollYBehavior: defaultBar.scrollYBehavior ?? "workspace",
@@ -706,6 +707,24 @@ Item {
                         });
                     }
                 }
+
+                Rectangle {
+                    width: parent.width
+                    height: 1
+                    color: Theme.outline
+                    opacity: 0.15
+                }
+
+                SettingsToggleRow {
+                    text: I18n.tr("Hide When Fullscreen", "bar visibility toggle: hide the bar when a window is fullscreen")
+                    checked: selectedBarConfig?.fullscreenDetection ?? true
+                    onToggled: toggled => {
+                        SettingsData.updateBarConfig(selectedBarId, {
+                            fullscreenDetection: toggled
+                        });
+                        notifyHorizontalBarChange();
+                    }
+                }
             }
 
             SettingsControlledByFrame {

quickshell/Modules/Settings/DockTab.qml

@@ -87,6 +87,16 @@ Item {
                     visible: CompositorService.isNiri
                     onToggled: checked => SettingsData.set("dockOpenOnOverview", checked)
                 }
+
+                SettingsToggleRow {
+                    settingKey: "dockHideOnFullscreen"
+                    tags: ["dock", "fullscreen", "hide"]
+                    text: I18n.tr("Hide When Fullscreen", "dock visibility toggle: hide the dock when a window is fullscreen")
+                    description: I18n.tr("Hide the dock when a window is fullscreen", "dock visibility toggle description")
+                    checked: SettingsData.dockHideOnFullscreen
+                    visible: SettingsData.showDock
+                    onToggled: checked => SettingsData.set("dockHideOnFullscreen", checked)
+                }
             }
 
             SettingsCard {