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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");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.settings.deviceinfo;
     17 
     18 import android.content.Context;
     19 import android.content.Intent;
     20 import android.os.Build;
     21 import android.os.PersistableBundle;
     22 import android.os.UserManager;
     23 import android.support.v7.preference.Preference;
     24 import android.support.v7.preference.PreferenceScreen;
     25 import android.telephony.CarrierConfigManager;
     26 import android.text.TextUtils;
     27 import android.util.Log;
     28 
     29 import com.android.settings.R;
     30 import com.android.settings.Utils;
     31 import com.android.settings.core.PreferenceController;
     32 
     33 import static android.content.Context.CARRIER_CONFIG_SERVICE;
     34 
     35 public class SystemUpdatePreferenceController extends PreferenceController {
     36 
     37     private static final String TAG = "SysUpdatePrefContr";
     38 
     39     private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings";
     40 
     41     private final UserManager mUm;
     42 
     43     public SystemUpdatePreferenceController(Context context, UserManager um) {
     44         super(context);
     45         mUm = um;
     46     }
     47 
     48     @Override
     49     public boolean isAvailable() {
     50         return mUm.isAdminUser();
     51     }
     52 
     53     @Override
     54     public String getPreferenceKey() {
     55         return KEY_SYSTEM_UPDATE_SETTINGS;
     56     }
     57 
     58     @Override
     59     public void displayPreference(PreferenceScreen screen) {
     60         if (isAvailable()) {
     61             Utils.updatePreferenceToSpecificActivityOrRemove(mContext, screen,
     62                     KEY_SYSTEM_UPDATE_SETTINGS,
     63                     Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY);
     64         } else {
     65             removePreference(screen, KEY_SYSTEM_UPDATE_SETTINGS);
     66         }
     67     }
     68 
     69     @Override
     70     public boolean handlePreferenceTreeClick(Preference preference) {
     71         if (KEY_SYSTEM_UPDATE_SETTINGS.equals(preference.getKey())) {
     72             CarrierConfigManager configManager =
     73                     (CarrierConfigManager) mContext.getSystemService(CARRIER_CONFIG_SERVICE);
     74             PersistableBundle b = configManager.getConfig();
     75             if (b != null && b.getBoolean(CarrierConfigManager.KEY_CI_ACTION_ON_SYS_UPDATE_BOOL)) {
     76                 ciActionOnSysUpdate(b);
     77             }
     78         }
     79         // always return false here because this handler does not want to block other handlers.
     80         return false;
     81     }
     82 
     83     @Override
     84     public void updateState(Preference preference) {
     85         preference.setSummary(mContext.getString(R.string.about_summary,
     86                 Build.VERSION.RELEASE));
     87     }
     88 
     89     /**
     90      * Trigger client initiated action (send intent) on system update
     91      */
     92     private void ciActionOnSysUpdate(PersistableBundle b) {
     93         String intentStr = b.getString(CarrierConfigManager.
     94                 KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING);
     95         if (!TextUtils.isEmpty(intentStr)) {
     96             String extra = b.getString(CarrierConfigManager.
     97                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING);
     98             String extraVal = b.getString(CarrierConfigManager.
     99                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING);
    100 
    101             Intent intent = new Intent(intentStr);
    102             if (!TextUtils.isEmpty(extra)) {
    103                 intent.putExtra(extra, extraVal);
    104             }
    105             Log.d(TAG, "ciActionOnSysUpdate: broadcasting intent " + intentStr +
    106                     " with extra " + extra + ", " + extraVal);
    107             mContext.getApplicationContext().sendBroadcast(intent);
    108         }
    109     }
    110 }
    111