settings: Remove LiveDisplay preferences if not available

 * This really shouldn't be the case, but apparently some devices
   are misconfigured and are overriding the GPU-based CMHW
   implementation which would ensure the basic capabilities are
   available.

Change-Id: I9f72cb58c9bbb63e0fdec4085b17a089f9d50174

1 files changed, 9 insertions, 0 deletions

diff --git a/src/com/android/settings/DisplaySettings.java b/src/com/android/settings/DisplaySettings.java
index 97353a8..ef7f9c3 100644
--- a/src/com/android/settings/DisplaySettings.java
+++ b/src/com/android/settings/DisplaySettings.java
@@ -84,6 +84,8 @@ import java.util.ArrayList;
 import java.util.List;
 import com.android.settings.Utils;
 import com.android.settings.cyanogenmod.DisplayRotation;
+
+import cyanogenmod.hardware.LiveDisplayManager;
 import cyanogenmod.providers.CMSettings;
 
 public class DisplaySettings extends SettingsPreferenceFragment implements
@@ -112,12 +114,14 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     private static final String KEY_WAKE_WHEN_PLUGGED_OR_UNPLUGGED = "wake_when_plugged_or_unplugged";
     private static final String KEY_NOTIFICATION_LIGHT = "notification_light";
     private static final String KEY_BATTERY_LIGHT = "battery_light";
+    private static final String KEY_LIVEDISPLAY = "live_display";
 
     private static final int DLG_GLOBAL_CHANGE_WARNING = 1;
 
     private ListPreference mLcdDensityPreference;
     private FontDialogPreference mFontSizePref;
     private PreferenceScreen mDisplayRotationPreference;
+    private PreferenceScreen mLiveDisplayPreference;
 
     private final Configuration mCurConfig = new Configuration();
 
@@ -172,6 +176,11 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
             mAccelerometer.setPersistent(false);
         }
 
+        mLiveDisplayPreference = (PreferenceScreen) findPreference(KEY_LIVEDISPLAY);
+        if (!LiveDisplayManager.getInstance(getActivity()).getConfig().isAvailable()) {
+            displayPrefs.removePreference(mLiveDisplayPreference);
+        }
+
         mScreenSaverPreference = findPreference(KEY_SCREEN_SAVER);
         if (mScreenSaverPreference != null
                 && getResources().getBoolean(