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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 package com.android.settings.display;
     15 
     16 import android.content.Context;
     17 import android.content.res.Configuration;
     18 import android.support.v7.preference.DropDownPreference;
     19 import android.support.v7.preference.Preference;
     20 
     21 import com.android.internal.logging.nano.MetricsProto;
     22 import com.android.internal.view.RotationPolicy;
     23 import com.android.settings.R;
     24 import com.android.settings.core.PreferenceController;
     25 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
     26 import com.android.settings.overlay.FeatureFactory;
     27 
     28 public class AutoRotatePreferenceController extends PreferenceController implements
     29         Preference.OnPreferenceChangeListener {
     30 
     31     private static final String KEY_AUTO_ROTATE = "auto_rotate";
     32     private final MetricsFeatureProvider mMetricsFeatureProvider;
     33 
     34     public AutoRotatePreferenceController(Context context) {
     35         super(context);
     36         mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
     37     }
     38 
     39     @Override
     40     public String getPreferenceKey() {
     41         return KEY_AUTO_ROTATE;
     42     }
     43 
     44     @Override
     45     public void updateState(Preference preference) {
     46         final DropDownPreference rotatePreference = (DropDownPreference) preference;
     47         final int rotateLockedResourceId;
     48         preference.setSummary("%s");
     49         // The following block sets the string used when rotation is locked.
     50         // If the device locks specifically to portrait or landscape (rather than current
     51         // rotation), then we use a different string to include this information.
     52         if (allowAllRotations()) {
     53             rotateLockedResourceId = R.string.display_auto_rotate_stay_in_current;
     54         } else {
     55             if (RotationPolicy.getRotationLockOrientation(mContext)
     56                     == Configuration.ORIENTATION_PORTRAIT) {
     57                 rotateLockedResourceId = R.string.display_auto_rotate_stay_in_portrait;
     58             } else {
     59                 rotateLockedResourceId = R.string.display_auto_rotate_stay_in_landscape;
     60             }
     61         }
     62         rotatePreference.setEntries(new CharSequence[]{
     63                 mContext.getString(R.string.display_auto_rotate_rotate),
     64                 mContext.getString(rotateLockedResourceId),
     65         });
     66         rotatePreference.setEntryValues(new CharSequence[]{"0", "1"});
     67         rotatePreference.setValueIndex(RotationPolicy.isRotationLocked(mContext) ?
     68                 1 : 0);
     69     }
     70 
     71     @Override
     72     public boolean isAvailable() {
     73         return RotationPolicy.isRotationLockToggleVisible(mContext);
     74     }
     75 
     76     private boolean allowAllRotations() {
     77         return mContext.getResources().getBoolean(
     78                 com.android.internal.R.bool.config_allowAllRotations);
     79     }
     80 
     81     @Override
     82     public boolean onPreferenceChange(Preference preference, Object newValue) {
     83         final boolean locked = Integer.parseInt((String) newValue) != 0;
     84         mMetricsFeatureProvider.action(mContext, MetricsProto.MetricsEvent.ACTION_ROTATION_LOCK,
     85                 locked);
     86         RotationPolicy.setRotationLock(mContext, locked);
     87         return true;
     88     }
     89 }
     90