Add audio IPC options

AudioService: add a few functions to AudioService
IPCManager: Add 4 Audio IPC calls
README: Add information about new IPC calls

Modules/IPC/IPCManager.qml

@@ -99,6 +99,24 @@ Item {
     }
   }
 
+  IpcHandler {
+    target: "volume"
+    function increase() {
+      AudioService.increaseVolume()
+    }
+    function decrease() {
+      AudioService.decreaseVolume()
+    }
+    function muteOutput() {
+      AudioService.setMuted(!AudioService.muted)
+    }
+    function muteInput() {
+      if (AudioService.source?.ready && AudioService.source?.audio) {
+        AudioService.source.audio.muted = !AudioService.source.audio.muted
+      }
+    }
+  }
+
   IpcHandler {
     target: "powerPanel"
     function toggle() {

Modules/SettingsPanel/Tabs/AudioTab.qml

@@ -81,6 +81,54 @@ ColumnLayout {
     }
   }
 
+  // Input Volume
+  ColumnLayout {
+    spacing: Style.marginS * scaling
+    Layout.fillWidth: true
+    Layout.topMargin: Style.marginM * scaling
+
+    NLabel {
+      label: "Input Volume"
+      description: "Microphone input volume level."
+    }
+
+    RowLayout {
+      NSlider {
+        Layout.fillWidth: true
+        from: 0
+        to: 1.0
+        value: AudioService.inputVolume
+        stepSize: 0.01
+        onMoved: {
+          AudioService.setInputVolume(value)
+        }
+      }
+
+      NText {
+        text: Math.floor(AudioService.inputVolume * 100) + "%"
+        Layout.alignment: Qt.AlignVCenter
+        Layout.leftMargin: Style.marginS * scaling
+        color: Color.mOnSurface
+      }
+    }
+  }
+
+  // Input Mute Toggle
+  ColumnLayout {
+    spacing: Style.marginS * scaling
+    Layout.fillWidth: true
+    Layout.topMargin: Style.marginM * scaling
+
+    NToggle {
+      label: "Mute Audio Input"
+      description: "Mute or unmute the default audio input (microphone)."
+      checked: AudioService.inputMuted
+      onToggled: checked => {
+                   AudioService.setInputMuted(checked)
+                 }
+    }
+  }
+
   // Volume Step Size
   ColumnLayout {
     spacing: Style.marginS * scaling

README.md

@@ -194,6 +194,10 @@ The following commands apply to the Nix flake and also the AUR package installat
 | Open Calculator             | `noctalia-shell ipc call launcher calculator`         |
 | Increase Brightness         | `noctalia-shell ipc call brightness increase`         |
 | Decrease Brightness         | `noctalia-shell ipc call brightness decrease`         |
+| Increase Output Volume      | `noctalia-shell ipc call volume increase`             |
+| Decrease Output Volume      | `noctalia-shell ipc call volume decrease`             |
+| Toggle Mute Audio Output    | `noctalia-shell ipc call volume muteOutput`           |
+| Toggle Mute Audio Input     | `noctalia-shell ipc call volume muteInput`            |
 | Toggle Power Panel          | `noctalia-shell ipc call powerPanel toggle`           |
 | Toggle Idle Inhibitor       | `noctalia-shell ipc call idleInhibitor toggle`        |
 | Toggle Settings Window      | `noctalia-shell ipc call settings toggle`             |

Services/AudioService.qml

@@ -35,6 +35,13 @@ Singleton {
   readonly property alias muted: root._muted
   property bool _muted: !!sink?.audio?.muted
 
+  // Input volume [0..1] is readonly from outside
+  readonly property alias inputVolume: root._inputVolume
+  property real _inputVolume: source?.audio?.volume ?? 0
+
+  readonly property alias inputMuted: root._inputMuted
+  property bool _inputMuted: !!source?.audio?.muted
+
   readonly property real stepVolume: Settings.data.audio.volumeStep / 100.0
 
   PwObjectTracker {
@@ -58,6 +65,23 @@ Singleton {
     }
   }
 
+  Connections {
+    target: source?.audio ? source?.audio : null
+
+    function onVolumeChanged() {
+      var vol = (source?.audio.volume ?? 0)
+      if (isNaN(vol)) {
+        vol = 0
+      }
+      root._inputVolume = vol
+    }
+
+    function onMutedChanged() {
+      root._inputMuted = (source?.audio.muted ?? true)
+      Logger.log("AudioService", "OnInputMuteChanged:", root._inputMuted)
+    }
+  }
+
   function increaseVolume() {
     setVolume(volume + stepVolume)
   }
@@ -85,6 +109,24 @@ Singleton {
     }
   }
 
+  function setInputVolume(newVolume: real) {
+    if (source?.ready && source?.audio) {
+      // Clamp it accordingly
+      source.audio.muted = false
+      source.audio.volume = Math.max(0, Math.min(1, newVolume))
+    } else {
+      Logger.warn("AudioService", "No source available")
+    }
+  }
+
+  function setInputMuted(muted: bool) {
+    if (source?.ready && source?.audio) {
+      source.audio.muted = muted
+    } else {
+      Logger.warn("AudioService", "No source available")
+    }
+  }
+
   function setAudioSink(newSink: PwNode): void {
     Pipewire.preferredDefaultAudioSink = newSink
   }