Merge "Create EvenDimmerPreferenceController" into main

src/com/android/settings/display/EvenDimmerPreferenceController.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.display;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.provider.Settings;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+
+import com.android.server.display.feature.flags.Flags;
+import com.android.settings.R;
+import com.android.settings.core.TogglePreferenceController;
+
+/**
+ * Controller for the settings toggle which allows screen brightness to go even dimmer than usual.
+ *
+ */
+public class EvenDimmerPreferenceController extends TogglePreferenceController {
+
+    private static final String TAG = "EvenDimmerPreferenceController";
+
+    private final Resources mResources;
+
+    public EvenDimmerPreferenceController(@NonNull Context context, @NonNull String key) {
+        super(context, key);
+        mResources = context.getResources();
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        // enable based on flag and config.xml
+        final boolean enabledInConfig = mResources.getBoolean(
+                com.android.internal.R.bool.config_evenDimmerEnabled);
+        return (Flags.evenDimmer() && enabledInConfig) ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public boolean isChecked() {
+        return getEvenDimmerActivated();
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        final float enabled = getAvailabilityStatus() == AVAILABLE && isChecked ? 1 : 0;
+        Log.i(TAG, "setChecked to : " + enabled);
+
+        return Settings.Secure.putFloat(
+                mContext.getContentResolver(), Settings.Secure.EVEN_DIMMER_ACTIVATED, enabled);
+    }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return R.string.menu_key_display;
+    }
+
+    private boolean getEvenDimmerActivated() {
+        return Settings.Secure.getFloat(mContext.getContentResolver(),
+                Settings.Secure.EVEN_DIMMER_ACTIVATED, 0) == 1;
+    }
+}