Settings: add "advanced" menu to Display/TapToWake

          Forward TapToWake from CM11

          Contains Commits:

          Author: Ricardo Cerqueira<cyanogenmod@cerqueira.org>
          DisplaySettings: Add hardware-framework support for tap-to-wake

          Since we have tap-to-sleep globally, might as well support the
          wake gesture as a standalone thing through the HAF. Place it in
          "Display".
          Change-Id: I6facc2334ff9e80077581c54c428476594e91528

          Author: Roman Birg <roman@cyngn.com>
          Settings: set proper default value for tap to wake

          The first time the display_settings.xml file gets inflated, the
          PreferenceManager takes the defaultValue and persists it in the default
          shared preferences file.
          When we read the double tap to wake preference,
          we assume it has a default value of true, which it uses until the user
          enters Display Settings for the first time. At that point, the default
          value is persisted, and every boot after will use the default value in
          display_settings.xml.
          Remove the default defined in the XML file.
          Change-Id: I0989dd73b6b3c42ff8649bc17eebf4e191293ee4

Change-Id: I271390aa7bfc56811dcf6fff7e1d05c76c4bfa48

2 files changed, 51 insertions, 0 deletions

diff --git a/src/com/android/settings/DisplaySettings.java b/src/com/android/settings/DisplaySettings.java
index 0e2c77c..1cbb3af 100644
--- a/src/com/android/settings/DisplaySettings.java
+++ b/src/com/android/settings/DisplaySettings.java
@@ -39,6 +39,7 @@ import android.content.ContentResolver;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.content.SharedPreferences;
 import android.hardware.Sensor;
 import android.hardware.SensorManager;
 import android.os.Build;
@@ -48,6 +49,7 @@ import android.os.SystemProperties;
 import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceManager;
 import android.preference.PreferenceScreen;
 import android.preference.SwitchPreference;
 import android.provider.SearchIndexableResource;
@@ -59,6 +61,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import com.android.settings.Utils;
+import org.cyanogenmod.hardware.TapToWake;
 
 public class DisplaySettings extends SettingsPreferenceFragment implements
         Preference.OnPreferenceChangeListener, OnPreferenceClickListener, Indexable {
@@ -76,6 +79,9 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     private static final String KEY_AUTO_BRIGHTNESS = "auto_brightness";
     private static final String KEY_AUTO_ROTATE = "auto_rotate";
     private static final String KEY_NIGHT_MODE = "night_mode";
+    private static final String KEY_TAP_TO_WAKE = "double_tap_wake_gesture";
+
+    private static final String CATEGORY_ADVANCED = "advanced_display_prefs";
 
     private static final int DLG_GLOBAL_CHANGE_WARNING = 1;
 
@@ -90,6 +96,7 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     private SwitchPreference mDozePreference;
     private SwitchPreference mTapToWakePreference;
     private SwitchPreference mAutoBrightnessPreference;
+    private SwitchPreference mTapToWake;
 
     @Override
     protected int getMetricsCategory() {
@@ -197,6 +204,13 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
             mNightModePreference.setValue(String.valueOf(currentNightMode));
             mNightModePreference.setOnPreferenceChangeListener(this);
         }
+        PreferenceScreen advancedPrefs = (PreferenceScreen) findPreference(CATEGORY_ADVANCED);
+
+        mTapToWake = (SwitchPreference) findPreference(KEY_TAP_TO_WAKE);
+        if (!isTapToWakeSupported()) {
+            advancedPrefs.removePreference(mTapToWake);
+            mTapToWake = null;
+        }
     }
 
     private static boolean allowAllRotations(Context context) {
@@ -318,6 +332,11 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     @Override
     public void onResume() {
         super.onResume();
+
+        if (mTapToWake != null) {
+            mTapToWake.setChecked(TapToWake.isEnabled());
+        }
+
         updateState();
     }
 
@@ -372,6 +391,15 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
         }
     }
 
+    private static boolean isTapToWakeSupported() {
+        try {
+            return TapToWake.isSupported();
+        } catch (NoClassDefFoundError e) {
+            // Hardware abstraction framework not installed
+            return false;
+        }
+    }
+
     public void writeFontSizePreference(Object objValue) {
         try {
             mCurConfig.fontScale = Float.parseFloat(objValue.toString());
@@ -383,6 +411,10 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
 
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+        if (preference == mTapToWake) {
+            return TapToWake.setEnabled(mTapToWake.isChecked());
+        }
+
         return super.onPreferenceTreeClick(preferenceScreen, preference);
     }
 
@@ -449,6 +481,23 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
         return R.string.help_uri_display;
     }
 
+    /**
+     * Restore the properties associated with this preference on boot
+       @param ctx A valid context
+     */
+    public static void restore(Context ctx) {
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);
+        if (isTapToWakeSupported()) {
+            final boolean enabled = prefs.getBoolean(KEY_TAP_TO_WAKE,
+                TapToWake.isEnabled());
+            if (!TapToWake.setEnabled(enabled)) {
+                Log.e(TAG, "Failed to restore tap-to-wake settings.");
+            } else {
+                Log.d(TAG, "Tap-to-wake settings restored.");
+            }
+        }
+    }
+
     public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider() {
                 @Override
diff --git a/src/com/android/settings/cyanogenmod/BootReceiver.java b/src/com/android/settings/cyanogenmod/BootReceiver.java
index c809b7f..18213d7 100644
--- a/src/com/android/settings/cyanogenmod/BootReceiver.java
+++ b/src/com/android/settings/cyanogenmod/BootReceiver.java
@@ -20,6 +20,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import com.android.settings.ButtonSettings;
+import com.android.settings.DisplaySettings;
 
 public class BootReceiver extends BroadcastReceiver {
 
@@ -28,6 +29,7 @@ public class BootReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(Context ctx, Intent intent) {
         /* Restore the hardware tunable values */
+        DisplaySettings.restore(ctx);
         ButtonSettings.restoreKeyDisabler(ctx);
     }
 }