feat(widgets/bluetooth): Add option to hide widget when adapter is off

assets/translations/en.json

@@ -3545,6 +3545,10 @@
           "description": "Hide tray items whose StatusNotifierItem status is Passive",
           "label": "Hide Passive Items"
         },
+        "hide-when-adapter-off": {
+          "description": "Hide the Bluetooth widget when adapter is powered off",
+          "label": "Hide When Adapter Off"
+        },
         "hide-when-empty": {
           "description": "Hide workspace pills when there are no open windows",
           "label": "Hide When Empty",

docs/user/bar/widgets/bluetooth.mdx

@@ -10,6 +10,7 @@ Shows the Bluetooth adapter state and connected device. Left-click opens the Blu
 | Setting | Type | Default | Description |
 |---------|------|---------|-------------|
 | `show_label` | bool | `false` | Show the connected device name next to the icon |
+| `hide_when_adapter_off` | bool | `false` | Hide the widget when the adapter is powered off. While hidden, the widget's right-click power toggle is unavailable; re-enable Bluetooth from the control center. |
 | `hide_when_no_connected_device` | bool | `false` | Hide the widget when no Bluetooth device is connected. |
 
 ```toml

src/shell/bar/widgets/bluetooth_widget.cpp

@@ -45,7 +45,7 @@ namespace {
 } // namespace
 
 BluetoothWidget::BluetoothWidget(BluetoothService* bluetooth, wl_output* /*output*/, Options options)
-    : m_bluetooth(bluetooth), m_showLabel(options.showLabel),
+    : m_bluetooth(bluetooth), m_showLabel(options.showLabel), m_hideWhenAdapterOff(options.hideWhenAdapterOff),
       m_hideWhenNoConnectedDevice(options.hideWhenNoConnectedDevice) {}
 
 void BluetoothWidget::create() {
@@ -128,7 +128,8 @@ void BluetoothWidget::syncState(Renderer& renderer) {
   m_lastConnectedAlias = alias;
 
   const bool hasConnectedDevice = numConnected > 0;
-  const bool showWidget = s.adapterPresent && (!m_hideWhenNoConnectedDevice || hasConnectedDevice);
+  const bool showWidget =
+      s.adapterPresent && (!m_hideWhenAdapterOff || s.powered) && (!m_hideWhenNoConnectedDevice || hasConnectedDevice);
   syncWidgetVisibility(showWidget);
   if (!showWidget) {
     if (Node* rootNode = root(); rootNode != nullptr) {

src/shell/bar/widgets/bluetooth_widget.h

@@ -13,6 +13,7 @@ class BluetoothWidget : public Widget {
 public:
   struct Options {
     bool showLabel = false;
+    bool hideWhenAdapterOff = false;
     bool hideWhenNoConnectedDevice = false;
   };
 
@@ -28,6 +29,7 @@ class BluetoothWidget : public Widget {
 
   BluetoothService* m_bluetooth = nullptr;
   bool m_showLabel = false;
+  bool m_hideWhenAdapterOff = false;
   bool m_hideWhenNoConnectedDevice = false;
   Glyph* m_glyph = nullptr;
   Label* m_label = nullptr;

src/shell/bar/widgets/bluetooth_widget_definition.cpp

@@ -1,5 +1,17 @@
 #include "shell/bar/widgets/bluetooth_widget_definition.h"
 
+namespace {
+
+  // A powered-off adapter has no connected device, so hiding on "no connected device"
+  // already covers the adapter-off case and makes this toggle inert.
+  settings::WidgetSettingVisibility connectedDeviceFilterOff() {
+    settings::WidgetSettingVisibility visibility;
+    visibility.all = {{"hide_when_no_connected_device", {"false"}}};
+    return visibility;
+  }
+
+} // namespace
+
 const noctalia::bar::WidgetDefinition<BluetoothWidget::Options>& bluetoothWidgetDefinition() {
   using noctalia::bar::field;
   using Options = BluetoothWidget::Options;
@@ -10,6 +22,13 @@ const noctalia::bar::WidgetDefinition<BluetoothWidget::Options>& bluetoothWidget
           field<&Options::showLabel>({
               .key = "show_label",
           }),
+          field<&Options::hideWhenAdapterOff>({
+              .key = "hide_when_adapter_off",
+              .presentation =
+                  settings::WidgetSettingPresentation{
+                      .visibleWhen = connectedDeviceFilterOff(),
+                  },
+          }),
           field<&Options::hideWhenNoConnectedDevice>({
               .key = "hide_when_no_connected_device",
           }),