Add button led timeout option into settings

Change-Id: If9ca126b52fd06da7f6e55fc59b305189acac68a

8 files changed, 284 insertions, 2 deletions

diff --git a/CrespoParts/res/layout/preference_dialog_bld_tuning.xml b/CrespoParts/res/layout/preference_dialog_bld_tuning.xml
new file mode 100644
index 0000000..5c83b6e
--- /dev/null
+++ b/CrespoParts/res/layout/preference_dialog_bld_tuning.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center_horizontal"
+            android:paddingBottom="20dip">
+
+        <TextView android:id="@+id/bld_text"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/bld_title"
+                android:paddingTop="10dip"
+                android:paddingLeft="20dip"
+                android:paddingRight="20dip" />
+        <TextView android:id="@+id/bld_value"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentRight="true"
+                android:paddingTop="10dip"
+                android:paddingLeft="20dip"
+                android:paddingRight="20dip" />
+        <SeekBar android:id="@+id/bld_seekbar"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_below="@id/bld_text"
+                android:paddingTop="2dip"
+                android:paddingLeft="20dip"
+                android:paddingRight="20dip" />
+    </RelativeLayout>
+</ScrollView>
diff --git a/CrespoParts/res/values/strings.xml b/CrespoParts/res/values/strings.xml
index 661fb8d..d3531df 100644
--- a/CrespoParts/res/values/strings.xml
+++ b/CrespoParts/res/values/strings.xml
@@ -26,6 +26,9 @@
     <string name="color_default_title">Default</string>
     <string name="color_CM_title">CM Sett.</string>
     <string name="color_dark_title">Dark Sett.</string>
+    <string name="bld_title">BLD</string>
+    <string name="bld_tuning_title_head">BLD Tuning</string>
+    <string name="bld_tuning_summary_head">Set the time to turn off keys light ( 0 means no BLD )</string>
 
     <string name="preset1_default_title">Default.</string>
     <string name="preset2_default_title">Natural</string>
diff --git a/CrespoParts/res/xml/general_preferences.xml b/CrespoParts/res/xml/general_preferences.xml
index 423f97b..7788a88 100644
--- a/CrespoParts/res/xml/general_preferences.xml
+++ b/CrespoParts/res/xml/general_preferences.xml
@@ -20,6 +20,10 @@
         <CheckBoxPreference android:key="touchkey_notification"
             android:title="@string/touchkey_notification_title_head"
             android:summary="@string/touchkey_notification_summary_head" />
+        <com.cyanogenmod.settings.device.bldTuningPreference
+            android:key="bld_tuning"
+            android:title="@string/bld_tuning_title_head"
+            android:summary="@string/bld_tuning_summary_head" />
     </PreferenceCategory>
 
 </PreferenceScreen>
diff --git a/CrespoParts/src/com/cyanogenmod/settings/device/DeviceSettings.java b/CrespoParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
index d84a78b..e868086 100644
--- a/CrespoParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
+++ b/CrespoParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
@@ -49,6 +49,7 @@ public class DeviceSettings extends Activity {
     public static final String KEY_NOTIFICATION = "touchkey_notification";
     public static final String KEY_CATEGORY_RADIO = "category_radio";
     public static final String KEY_HSPA = "hspa";
+    public static final String KEY_BLD_TUNING = "bld_tuning";
 
     ViewPager mViewPager;
     TabsAdapter mTabsAdapter;
diff --git a/CrespoParts/src/com/cyanogenmod/settings/device/GeneralFragmentActivity.java b/CrespoParts/src/com/cyanogenmod/settings/device/GeneralFragmentActivity.java
index eb183a2..d437997 100644
--- a/CrespoParts/src/com/cyanogenmod/settings/device/GeneralFragmentActivity.java
+++ b/CrespoParts/src/com/cyanogenmod/settings/device/GeneralFragmentActivity.java
@@ -44,9 +44,11 @@ public class GeneralFragmentActivity extends PreferenceFragment implements OnPre
     private static final String TOUCHKEY_NOTIFICATION_FILE = "/sys/class/misc/notification/enabled";
     private static final String PREF_ENABLED = "1";
     private static final String TAG = "CrespoParts_General";
+    private static final String BLD_FILE = "/sys/class/misc/backlightdimmer/enabled";
 
     private CheckBoxPreference mDeepIdle;
     private CheckBoxPreference mNotification;
+    private bldTuningPreference mbldTuning;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -71,9 +73,12 @@ public class GeneralFragmentActivity extends PreferenceFragment implements OnPre
         }
 
 		Preference p = findPreference(DeviceSettings.KEY_DEEPIDLE_STATS);
-		if(p != null) {
+		if(p != null)
 			p.setOnPreferenceClickListener(this);
-		}
+
+        mbldTuning = (bldTuningPreference) findPreference(DeviceSettings.KEY_BLD_TUNING);
+        if(mbldTuning != null)
+            mbldTuning.setEnabled(bldTuningPreference.isSupported());
 
     }
 
diff --git a/CrespoParts/src/com/cyanogenmod/settings/device/Startup.java b/CrespoParts/src/com/cyanogenmod/settings/device/Startup.java
index 0728953..2799424 100644
--- a/CrespoParts/src/com/cyanogenmod/settings/device/Startup.java
+++ b/CrespoParts/src/com/cyanogenmod/settings/device/Startup.java
@@ -10,6 +10,7 @@ public class Startup extends BroadcastReceiver {
     public void onReceive(final Context context, final Intent bootintent) {
         GeneralFragmentActivity.restore(context);
         ColorTuningPreference.restore(context);
+        bldTuningPreference.restore(context);
         GammaTuningPreference.restore(context);
         if (Hspa.isSupported()) {
             Hspa.restore(context);
diff --git a/CrespoParts/src/com/cyanogenmod/settings/device/Utils.java b/CrespoParts/src/com/cyanogenmod/settings/device/Utils.java
index 6b9c0d3..a5b9ea7 100644
--- a/CrespoParts/src/com/cyanogenmod/settings/device/Utils.java
+++ b/CrespoParts/src/com/cyanogenmod/settings/device/Utils.java
@@ -119,6 +119,21 @@ public class Utils {
     }
 
     /**
+     * Write the "color value" to the specified file. The value is scaled from
+     * seconds to miliseconds multiplying by 1000.
+     * 
+     * @param filename The filename
+     * @param value The value of time 
+     */
+    public static void writebld(String filename, int value) {
+        writeValue(filename, String.valueOf(value * 1000));
+        if(value > 0)
+            writeValue("/sys/class/misc/backlightdimmer/enabled", "1");
+        else
+            writeValue("/sys/class/misc/backlightdimmer/enabled", "0");
+    }
+
+    /**
      * Check if the specified file exists.
      * 
      * @param filename The filename
diff --git a/CrespoParts/src/com/cyanogenmod/settings/device/bldTuningPreference.java b/CrespoParts/src/com/cyanogenmod/settings/device/bldTuningPreference.java
new file mode 100644
index 0000000..edad9ba
--- /dev/null
+++ b/CrespoParts/src/com/cyanogenmod/settings/device/bldTuningPreference.java
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2011 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.content.SharedPreferences.Editor;
+import android.preference.DialogPreference;
+import android.preference.PreferenceManager;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.SeekBar;
+import android.widget.TextView;
+import android.util.Log;
+import android.widget.Button;
+
+/**
+ * Special preference type that allows configuration of both the ring volume and
+ * notification volume.
+ */
+public class bldTuningPreference extends DialogPreference {
+
+    private static final String TAG = "BLD...";
+
+    private static final int[] SEEKBAR_ID = new int[] {
+            R.id.bld_seekbar
+    };
+
+    private static final int[] VALUE_DISPLAY_ID = new int[] {
+            R.id.bld_value
+    };
+
+    private static final String[] FILE_PATH = new String[] {
+            "/sys/class/misc/backlightdimmer/delay",
+    };
+
+
+    private bldSeekBar mSeekBars[] = new bldSeekBar[1];
+
+    // Align MAX_VALUE with Voodoo Control settings
+    private static final int MAX_VALUE = 30;
+
+    // Track instances to know when to restore original bld
+    // (when the orientation changes, a new dialog is created before the old one
+    // is destroyed)
+    private static int sInstances = 0;
+
+    public bldTuningPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        setDialogLayoutResource(R.layout.preference_dialog_bld_tuning);
+    }
+
+    @Override
+    protected void onBindDialogView(View view) {
+        super.onBindDialogView(view);
+
+        sInstances++;
+
+        for (int i = 0; i < SEEKBAR_ID.length; i++) {
+            SeekBar seekBar = (SeekBar) view.findViewById(SEEKBAR_ID[i]);
+            TextView valueDisplay = (TextView) view.findViewById(VALUE_DISPLAY_ID[i]);
+            mSeekBars[i] = new bldSeekBar(seekBar, valueDisplay, FILE_PATH[i]);
+        }
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        super.onDialogClosed(positiveResult);
+
+        sInstances--;
+
+        if (positiveResult) {
+            for (bldSeekBar csb : mSeekBars) {
+                csb.save();
+            }
+        } else if (sInstances == 0) {
+            for (bldSeekBar csb : mSeekBars) {
+                csb.reset();
+            }
+        }
+    }
+
+    /**
+     * Restore screen bld tuning from SharedPreferences. (Write to kernel.)
+     * 
+     * @param context The context to read the SharedPreferences from
+     */
+    public static void restore(Context context) {
+        int iValue, iValue2;
+        if (!isSupported()) {
+            return;
+        }
+
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+
+        for (String filePath : FILE_PATH) {
+            String sDefaultValue = Utils.readOneLine(filePath);
+            Log.d(TAG,"INIT: " + sDefaultValue);
+            try {
+                iValue2 = Integer.parseInt(sDefaultValue) - 1000;
+            } catch (NumberFormatException e) {
+                iValue2 = 0;
+            }
+            try {
+                iValue = sharedPrefs.getInt(filePath, iValue2);
+                Log.d(TAG, "restore: iValue: " + iValue + " File: " + filePath);
+            } catch (NumberFormatException e) {
+                iValue = iValue2;
+                Log.e(TAG, "restore ERROR: iValue: " + iValue + " File: " + filePath);
+            }
+            Utils.writebld(filePath, (int) iValue);
+        }
+    }
+
+    /**
+     * Check whether the running kernel supports bld tuning or not.
+     * 
+     * @return Whether bld tuning is supported or not
+     */
+    public static boolean isSupported() {
+        boolean supported = true;
+        for (String filePath : FILE_PATH) {
+            if (!Utils.fileExists(filePath)) {
+                supported = false;
+            }
+        }
+
+        return supported;
+    }
+
+    class bldSeekBar implements SeekBar.OnSeekBarChangeListener {
+
+        private String mFilePath;
+
+        private int mOriginal;
+
+        private SeekBar mSeekBar;
+
+        private TextView mValueDisplay;
+
+        public bldSeekBar(SeekBar seekBar, TextView valueDisplay, String filePath) {
+            int iValue;
+
+            mSeekBar = seekBar;
+            mValueDisplay = valueDisplay;
+            mFilePath = filePath;
+
+            SharedPreferences sharedPreferences = getSharedPreferences();
+
+            // Read original value
+            if (Utils.fileExists(mFilePath)) {
+                String sDefaultValue = Utils.readOneLine(mFilePath);
+                iValue = (int) (Long.valueOf(sDefaultValue) / 1000);
+            } else {
+                iValue = sharedPreferences.getInt(mFilePath, MAX_VALUE);
+            }
+            mOriginal = iValue;
+
+            mSeekBar.setMax(MAX_VALUE);
+            reset();
+            mSeekBar.setOnSeekBarChangeListener(this);
+        }
+
+        public void reset() {
+            mSeekBar.setProgress(mOriginal);
+            updateValue(mOriginal);
+        }
+
+        public void save() {
+            Editor editor = getEditor();
+            editor.putInt(mFilePath, mSeekBar.getProgress());
+            editor.commit();
+        }
+
+        @Override
+        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+            Utils.writebld(mFilePath, progress);
+            updateValue(progress);
+        }
+
+        @Override
+        public void onStartTrackingTouch(SeekBar seekBar) {
+            // Do nothing
+        }
+
+        @Override
+        public void onStopTrackingTouch(SeekBar seekBar) {
+            // Do nothing
+        }
+
+        private void updateValue(int progress) {
+            mValueDisplay.setText(String.format("%d", progress));
+        }
+
+        public void SetNewValue(int iValue) {
+            mOriginal = iValue;
+            reset();
+        }
+
+    }
+
+}