AriesParts: add vibration intensity settings

Change-Id: Iff35d34073b4b9c0f6989ff298c91cbf3cf7711e

3 files changed, 143 insertions, 0 deletions

diff --git a/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java b/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
index fff147a..ab87d54 100644
--- a/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
+++ b/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
@@ -27,6 +27,7 @@ public class DeviceSettings extends PreferenceActivity  {
     public static final String KEY_CARDOCK_AUDIO = "cardock_audio";
     public static final String KEY_DESKDOCK_AUDIO = "deskdock_audio";
     public static final String KEY_DOCK_AUDIO_CATEGORY = "category_dock_audio";
+    public static final String KEY_VIBRATION = "vibration";
 
     private ColorTuningPreference mColorTuning;
     private ListPreference mMdnie;
@@ -38,6 +39,7 @@ public class DeviceSettings extends PreferenceActivity  {
     private VolumeBoostPreference mVolumeBoost;
     private CheckBoxPreference mCarDockAudio;
     private CheckBoxPreference mDeskDockAudio;
+    private VibrationPreference mVibration;
 
     private BroadcastReceiver mHeadsetReceiver = new BroadcastReceiver() {
 
@@ -93,6 +95,9 @@ public class DeviceSettings extends PreferenceActivity  {
             getPreferenceScreen().removePreference(category);
         }
 
+        mVibration = (VibrationPreference) findPreference(KEY_VIBRATION);
+        mVibration.setEnabled(VibrationPreference.isSupported());
+
         mTvOut = new TvOut();
         mTvOutEnable = (CheckBoxPreference) findPreference(KEY_TVOUT_ENABLE);
         mTvOutSystem = (ListPreference) findPreference(KEY_TVOUT_SYSTEM);
diff --git a/AriesParts/src/com/cyanogenmod/settings/device/Startup.java b/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
index 924a95d..d7c843c 100644
--- a/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
+++ b/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
@@ -15,6 +15,7 @@ public class Startup extends BroadcastReceiver {
         VolumeBoostPreference.restore(context);
         DockAudio.restore(context);
         Sanity.check(context);
+        VibrationPreference.restore(context);
     }
 
 }
diff --git a/AriesParts/src/com/cyanogenmod/settings/device/VibrationPreference.java b/AriesParts/src/com/cyanogenmod/settings/device/VibrationPreference.java
new file mode 100644
index 0000000..9bf6726
--- /dev/null
+++ b/AriesParts/src/com/cyanogenmod/settings/device/VibrationPreference.java
@@ -0,0 +1,137 @@
+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.widget.SeekBar;
+import android.widget.TextView;
+
+public class VibrationPreference extends DialogPreference {
+
+    private static final int SEEKBAR_ID = R.id.vibration_seekbar;
+
+    private static final int VALUE_DISPLAY_ID = R.id.vibration_value;
+
+    private static final String FILE_PATH = "/sys/class/misc/pwm_duty/pwm_duty";
+
+    private VibrationSeekBar mSeekBar = new VibrationSeekBar();
+
+    private static final int MAX_VALUE = 100;
+
+    // Track instances to know when to restore original value
+    // (when the orientation changes, a new dialog is created before the old one is destroyed)
+    private static int sInstances = 0;
+
+    public VibrationPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        setDialogLayoutResource(R.layout.preference_dialog_vibration);
+    }
+
+    @Override
+    protected void onBindDialogView(View view) {
+        super.onBindDialogView(view);
+
+        sInstances++;
+
+        SeekBar seekBar = (SeekBar) view.findViewById(SEEKBAR_ID);
+        TextView valueDisplay = (TextView) view.findViewById(VALUE_DISPLAY_ID);
+        mSeekBar = new VibrationSeekBar(seekBar, valueDisplay, FILE_PATH);
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        super.onDialogClosed(positiveResult);
+
+        sInstances--;
+
+        if (positiveResult) {
+            mSeekBar.save();
+        } else if (sInstances == 0) {
+            mSeekBar.reset();
+        }
+    }
+
+    public static void restore(Context context) {
+        if (!isSupported()) {
+            return;
+        }
+
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        int value = sharedPrefs.getInt(FILE_PATH, MAX_VALUE);
+        Utils.writeValue(FILE_PATH, String.valueOf(value));
+    }
+
+    public static boolean isSupported() {
+        boolean supported = true;
+        if (!Utils.fileExists(FILE_PATH)) {
+            supported = false;
+        }
+
+        return supported;
+    }
+
+    class VibrationSeekBar implements SeekBar.OnSeekBarChangeListener {
+
+        protected String mFilePath;
+        protected int mOriginal;
+        protected SeekBar mSeekBar;
+        protected TextView mValueDisplay;
+
+        public VibrationSeekBar(SeekBar seekBar, TextView valueDisplay, String filePath) {
+            mSeekBar = seekBar;
+            mValueDisplay = valueDisplay;
+            mFilePath = filePath;
+
+            // Read original value
+            SharedPreferences sharedPreferences = getSharedPreferences();
+            mOriginal = sharedPreferences.getInt(mFilePath, MAX_VALUE);
+
+            seekBar.setMax(MAX_VALUE);
+            reset();
+            seekBar.setOnSeekBarChangeListener(this);
+        }
+
+        // For inheriting class
+        protected VibrationSeekBar() {
+        }
+
+        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.writeValue(mFilePath, String.valueOf(progress));
+            updateValue(progress);
+        }
+
+        @Override
+        public void onStartTrackingTouch(SeekBar seekBar) {
+            // Do nothing
+        }
+
+        @Override
+        public void onStopTrackingTouch(SeekBar seekBar) {
+            // Do nothing
+        }
+
+        protected void updateValue(int progress) {
+            mValueDisplay.setText(String.valueOf(progress) + "%");
+        }
+
+    }
+
+}