power: support automatic profile switching on battery change (#897)

quickshell/Common/SettingsData.qml

@@ -248,10 +248,12 @@ Singleton {
     property int acLockTimeout: 0
     property int acSuspendTimeout: 0
     property int acSuspendBehavior: SettingsData.SuspendBehavior.Suspend
+    property string acProfileName: ""
     property int batteryMonitorTimeout: 0
     property int batteryLockTimeout: 0
     property int batterySuspendTimeout: 0
     property int batterySuspendBehavior: SettingsData.SuspendBehavior.Suspend
+    property string batteryProfileName: ""
     property bool lockBeforeSuspend: false
     property bool preventIdleForMedia: false
     property bool loginctlLockIntegration: true

quickshell/Common/settings/SettingsSpec.js

@@ -147,10 +147,12 @@ var SPEC = {
     acLockTimeout: { def: 0 },
     acSuspendTimeout: { def: 0 },
     acSuspendBehavior: { def: 0 },
+    acProfileName: { def: "" },
     batteryMonitorTimeout: { def: 0 },
     batteryLockTimeout: { def: 0 },
     batterySuspendTimeout: { def: 0 },
     batterySuspendBehavior: { def: 0 },
+    batteryProfileName: { def: "" },
     lockBeforeSuspend: { def: false },
     preventIdleForMedia: { def: false },
     loginctlLockIntegration: { def: true },

quickshell/Modules/Settings/PowerSleepTab.qml

@@ -99,6 +99,43 @@ Item {
                         SettingsData.set("fadeToLockGracePeriod", periodValues[index]);
                     }
                 }
+                SettingsDropdownRow {
+                    id: powerProfileDropdown
+                    property var profileOptions: [I18n.tr("Don't Change"), Theme.getPowerProfileLabel(0), Theme.getPowerProfileLabel(1), Theme.getPowerProfileLabel(2)]
+                    property var profileValues: ["", "0", "1", "2"]
+
+                    width: parent.width
+                    addHorizontalPadding: true
+                    text: I18n.tr("Switch to power profile")
+                    options: profileOptions
+
+                    Connections {
+                        target: powerCategory
+                        function onCurrentIndexChanged() {
+                            const currentProfile = powerCategory.currentIndex === 0 ? SettingsData.acProfileName : SettingsData.batteryProfileName;
+                            const index = powerProfileDropdown.profileValues.indexOf(currentProfile);
+                            powerProfileDropdown.currentValue = powerProfileDropdown.profileOptions[index]
+                        }
+                    }
+
+                    Component.onCompleted: {
+                        const currentProfile = powerCategory.currentIndex === 0 ? SettingsData.acProfileName : SettingsData.batteryProfileName;
+                        const index = profileValues.indexOf(currentProfile);
+                        currentValue = profileOptions[index]
+                    }
+
+                    onValueChanged: value => {
+                        const index = profileOptions.indexOf(value);
+                        if (index >= 0) {
+                            const profileValue = profileValues[index];
+                            if (powerCategory.currentIndex === 0) {
+                                SettingsData.set("acProfileName", profileValue);
+                            } else {
+                                SettingsData.set("batteryProfileName", profileValue);
+                            }
+                        }
+                    }
+                }
 
                 Rectangle {
                     width: parent.width

quickshell/Services/BatteryService.qml

@@ -72,6 +72,17 @@ Singleton {
             }
         }
 
+        const profileValue = BatteryService.isPluggedIn
+            ? SettingsData.acProfileName 
+            : SettingsData.batteryProfileName;
+
+        if (profileValue !== "") {
+            const targetProfile = parseInt(profileValue);
+            if (!isNaN(targetProfile) && PowerProfiles.profile !== targetProfile) {
+                PowerProfiles.profile = targetProfile;
+            }
+        }
+
         previousPluggedState = isPluggedIn;
     }