1 files changed, 88 insertions, 0 deletions
diff --git a/src/com/android/settings/display/VrDisplayPreferenceController.java b/src/com/android/settings/display/VrDisplayPreferenceController.java
new file mode 100644
index 0000000000..c340759cfc
--- /dev/null
+++ b/src/com/android/settings/display/VrDisplayPreferenceController.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2016 The Android Open Source 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.android.settings.display;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.provider.Settings;
+import android.support.v7.preference.DropDownPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+import android.util.Log;
+
+import com.android.settings.R;
+import com.android.settings.core.PreferenceController;
+
+public class VrDisplayPreferenceController extends PreferenceController implements
+        Preference.OnPreferenceChangeListener {
+
+    private static final String TAG = "VrDisplayPrefContr";
+    private static final String KEY_VR_DISPLAY_PREF = "vr_display_pref";
+
+    public VrDisplayPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected boolean isAvailable() {
+        final PackageManager pm = mContext.getPackageManager();
+        return pm.hasSystemFeature(PackageManager.FEATURE_VR_MODE_HIGH_PERFORMANCE);
+    }
+
+    @Override
+    protected String getPreferenceKey() {
+        return KEY_VR_DISPLAY_PREF;
+    }
+
+    @Override
+    public void updateState(PreferenceScreen screen) {
+        final DropDownPreference pref =
+                (DropDownPreference) screen.findPreference(KEY_VR_DISPLAY_PREF);
+        if (pref == null) {
+            Log.d(TAG, "Could not find VR display preference.");
+            return;
+        }
+        pref.setEntries(new CharSequence[]{
+                mContext.getString(R.string.display_vr_pref_low_persistence),
+                mContext.getString(R.string.display_vr_pref_off),
+        });
+        pref.setEntryValues(new CharSequence[]{"0", "1"});
+
+        int currentUser = ActivityManager.getCurrentUser();
+        int current = Settings.Secure.getIntForUser(mContext.getContentResolver(),
+                Settings.Secure.VR_DISPLAY_MODE,
+                            /*default*/Settings.Secure.VR_DISPLAY_MODE_LOW_PERSISTENCE,
+                currentUser);
+        pref.setValueIndex(current);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        int i = Integer.parseInt((String) newValue);
+        int u = ActivityManager.getCurrentUser();
+        if (!Settings.Secure.putIntForUser(mContext.getContentResolver(),
+                Settings.Secure.VR_DISPLAY_MODE,
+                i, u)) {
+            Log.e(TAG, "Could not change setting for " +
+                    Settings.Secure.VR_DISPLAY_MODE);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        return false;
+    }
+}