galaxys2: advanced settings: add content adaptive backlight control

Change-Id: I325d9663d7d1b82a7ebfb112e983a485689b063b

4 files changed, 64 insertions, 0 deletions

diff --git a/DeviceSettings/src/com/cyanogenmod/settings/device/CABC.java b/DeviceSettings/src/com/cyanogenmod/settings/device/CABC.java
new file mode 100644
index 0000000..af247d8
--- /dev/null
+++ b/DeviceSettings/src/com/cyanogenmod/settings/device/CABC.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod 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.cyanogenmod.settings.device;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.CheckBoxPreference;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceManager;
+import android.util.AttributeSet;
+
+public class CABC extends CheckBoxPreference implements OnPreferenceChangeListener {
+
+    public CABC(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        this.setOnPreferenceChangeListener(this);
+    }
+
+    private static final String FILE = "/sys/class/lcd/panel/power_reduce";
+
+    public static boolean isSupported() {
+        return Utils.fileExists(FILE);
+    }
+
+    /**
+     * Restore cabc setting from SharedPreferences. (Write to kernel.)
+     * @param context       The context to read the SharedPreferences from
+     */
+    public static void restore(Context context) {
+        if (!isSupported()) {
+            return;
+        }
+
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        Utils.writeValue(FILE, sharedPrefs.getBoolean(DeviceSettings.KEY_CABC, true) ? "1" : "0");
+    }
+
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        Utils.writeValue(FILE, (Boolean)newValue ? "1" : "0");
+        return true;
+    }
+
+}
diff --git a/DeviceSettings/src/com/cyanogenmod/settings/device/DeviceSettings.java b/DeviceSettings/src/com/cyanogenmod/settings/device/DeviceSettings.java
index c4ff285..9e35889 100644
--- a/DeviceSettings/src/com/cyanogenmod/settings/device/DeviceSettings.java
+++ b/DeviceSettings/src/com/cyanogenmod/settings/device/DeviceSettings.java
@@ -35,6 +35,7 @@ public class DeviceSettings extends FragmentActivity {
 
     public static final String SHARED_PREFERENCES_BASENAME = "com.cyanogenmod.settings.device";
     public static final String ACTION_UPDATE_PREFERENCES = "com.cyanogenmod.settings.device.UPDATE";
+    public static final String KEY_CABC = "cabc";
     public static final String KEY_MDNIE_SCENARIO = "mdnie_scenario";
     public static final String KEY_MDNIE_MODE = "mdnie_mode";
     public static final String KEY_MDNIE_NEGATIVE = "mdnie_negative";
diff --git a/DeviceSettings/src/com/cyanogenmod/settings/device/ScreenFragmentActivity.java b/DeviceSettings/src/com/cyanogenmod/settings/device/ScreenFragmentActivity.java
index 9ba40f7..29c08a9 100755
--- a/DeviceSettings/src/com/cyanogenmod/settings/device/ScreenFragmentActivity.java
+++ b/DeviceSettings/src/com/cyanogenmod/settings/device/ScreenFragmentActivity.java
@@ -37,6 +37,7 @@ public class ScreenFragmentActivity extends PreferenceFragment {
     private static final String FILE_TOUCHKEY_DISABLE = "/sys/class/sec/sec_touchkey/force_disable";
     private static final String FILE_TOUCHKEY_BRIGHTNESS = "/sys/class/sec/sec_touchkey/brightness";
 
+    private CABC mCABC;
     private mDNIeScenario mmDNIeScenario;
     private mDNIeMode mmDNIeMode;
     private mDNIeNegative mmDNIeNegative;
@@ -51,6 +52,9 @@ public class ScreenFragmentActivity extends PreferenceFragment {
         addPreferencesFromResource(R.xml.screen_preferences);
         PreferenceScreen prefSet = getPreferenceScreen();
 
+        mCABC = (CABC) findPreference(DeviceSettings.KEY_CABC);
+        mCABC.setEnabled(CABC.isSupported());
+
         mmDNIeScenario = (mDNIeScenario) findPreference(DeviceSettings.KEY_MDNIE_SCENARIO);
         mmDNIeScenario.setEnabled(mDNIeScenario.isSupported());
 
diff --git a/DeviceSettings/src/com/cyanogenmod/settings/device/Startup.java b/DeviceSettings/src/com/cyanogenmod/settings/device/Startup.java
index e9c1b49..da05d7f 100644
--- a/DeviceSettings/src/com/cyanogenmod/settings/device/Startup.java
+++ b/DeviceSettings/src/com/cyanogenmod/settings/device/Startup.java
@@ -24,6 +24,7 @@ public class Startup extends BroadcastReceiver {
 
     @Override
     public void onReceive(final Context context, final Intent bootintent) {
+        CABC.restore(context);
         DockFragmentActivity.restore(context);
         HapticFragmentActivity.restore(context);
         mDNIeScenario.restore(context);