cups: add comprehensive CUPs setting page

- Add printers
- Delete printers
- Use polkit APIs as fallback on auth errors
- Fix ref system to conditionally subscribe to cups when wanted

quickshell/Modals/Settings/SettingsContent.qml

@@ -146,13 +146,30 @@ FocusScope {
         }
 
         Loader {
-            id: launcherLoader
+            id: printerLoader
 
             anchors.fill: parent
             active: root.currentIndex === 7
             visible: active
             focus: active
 
+            sourceComponent: PrinterTab {}
+
+            onActiveChanged: {
+                if (active && item) {
+                    Qt.callLater(() => item.forceActiveFocus());
+                }
+            }
+        }
+
+        Loader {
+            id: launcherLoader
+
+            anchors.fill: parent
+            active: root.currentIndex === 8
+            visible: active
+            focus: active
+
             sourceComponent: LauncherTab {}
 
             onActiveChanged: {
@@ -166,7 +183,7 @@ FocusScope {
             id: themeColorsLoader
 
             anchors.fill: parent
-            active: root.currentIndex === 8
+            active: root.currentIndex === 9
             visible: active
             focus: active
 
@@ -183,7 +200,7 @@ FocusScope {
             id: powerLoader
 
             anchors.fill: parent
-            active: root.currentIndex === 9
+            active: root.currentIndex === 10
             visible: active
             focus: active
 
@@ -200,7 +217,7 @@ FocusScope {
             id: pluginsLoader
 
             anchors.fill: parent
-            active: root.currentIndex === 10
+            active: root.currentIndex === 11
             visible: active
             focus: active
 
@@ -219,7 +236,7 @@ FocusScope {
             id: aboutLoader
 
             anchors.fill: parent
-            active: root.currentIndex === 11
+            active: root.currentIndex === 12
             visible: active
             focus: active
 

quickshell/Modals/Settings/SettingsModal.qml

@@ -67,6 +67,15 @@ FloatingWindow {
         }
     }
 
+    Loader {
+        active: settingsModal.visible
+        sourceComponent: Component {
+            Ref {
+                service: CupsService
+            }
+        }
+    }
+
     FileBrowserModal {
         id: profileBrowser
 
@@ -112,7 +121,7 @@ FloatingWindow {
         focus: true
 
         Keys.onPressed: event => {
-            const tabCount = 12;
+            const tabCount = 13;
             if (event.key === Qt.Key_Escape) {
                 hide();
                 event.accepted = true;

quickshell/Modals/Settings/SettingsSidebar.qml

@@ -48,33 +48,45 @@ Rectangle {
             "dmsOnly": true,
             "tabIndex": 6
         },
+        {
+            "text": I18n.tr("Printers"),
+            "icon": "print",
+            "cupsOnly": true,
+            "tabIndex": 7
+        },
         {
             "text": I18n.tr("Launcher"),
             "icon": "apps",
-            "tabIndex": 7
+            "tabIndex": 8
         },
         {
             "text": I18n.tr("Theme & Colors"),
             "icon": "palette",
-            "tabIndex": 8
+            "tabIndex": 9
         },
         {
             "text": I18n.tr("Power & Security"),
             "icon": "power",
-            "tabIndex": 9
+            "tabIndex": 10
         },
         {
             "text": I18n.tr("Plugins"),
             "icon": "extension",
-            "tabIndex": 10
+            "tabIndex": 11
         },
         {
             "text": I18n.tr("About"),
             "icon": "info",
-            "tabIndex": 11
+            "tabIndex": 12
         }
     ]
-    readonly property var sidebarItems: allSidebarItems.filter(item => !item.dmsOnly || !NetworkService.usingLegacy)
+    readonly property var sidebarItems: allSidebarItems.filter(item => {
+        if (item.dmsOnly && NetworkService.usingLegacy)
+            return false;
+        if (item.cupsOnly && !CupsService.cupsAvailable)
+            return false;
+        return true;
+    })
 
     function navigateNext() {
         const currentItemIndex = sidebarItems.findIndex(item => item.tabIndex === currentIndex);