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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 
     15 package com.android.settings.datausage;
     16 
     17 import android.content.Context;
     18 import android.content.Intent;
     19 import android.net.NetworkPolicy;
     20 import android.net.NetworkTemplate;
     21 import android.os.Bundle;
     22 import android.os.RemoteException;
     23 import android.support.v7.preference.Preference;
     24 import android.util.AttributeSet;
     25 import com.android.settings.R;
     26 import com.android.settings.Utils;
     27 import com.android.settings.datausage.CellDataPreference.DataStateListener;
     28 
     29 public class BillingCyclePreference extends Preference implements TemplatePreference {
     30 
     31     private NetworkTemplate mTemplate;
     32     private NetworkServices mServices;
     33     private NetworkPolicy mPolicy;
     34     private int mSubId;
     35 
     36     public BillingCyclePreference(Context context, AttributeSet attrs) {
     37         super(context, attrs);
     38     }
     39 
     40     @Override
     41     public void onAttached() {
     42         super.onAttached();
     43         mListener.setListener(true, mSubId, getContext());
     44     }
     45 
     46     @Override
     47     public void onDetached() {
     48         mListener.setListener(false, mSubId, getContext());
     49         super.onDetached();
     50     }
     51 
     52     @Override
     53     public void setTemplate(NetworkTemplate template, int subId,
     54             NetworkServices services) {
     55         mTemplate = template;
     56         mSubId = subId;
     57         mServices = services;
     58         mPolicy = services.mPolicyEditor.getPolicy(mTemplate);
     59         setSummary(getContext().getString(R.string.billing_cycle_fragment_summary,
     60                 mPolicy != null ? mPolicy.cycleDay : 1));
     61         setIntent(getIntent());
     62     }
     63 
     64     private void updateEnabled() {
     65         try {
     66             setEnabled(mPolicy != null && mServices.mNetworkService.isBandwidthControlEnabled()
     67                     && mServices.mTelephonyManager.getDataEnabled(mSubId)
     68                     && mServices.mUserManager.isAdminUser());
     69         } catch (RemoteException e) {
     70             setEnabled(false);
     71         }
     72     }
     73 
     74     @Override
     75     public Intent getIntent() {
     76         Bundle args = new Bundle();
     77         args.putParcelable(DataUsageList.EXTRA_NETWORK_TEMPLATE, mTemplate);
     78         return Utils.onBuildStartFragmentIntent(getContext(), BillingCycleSettings.class.getName(),
     79                 args, null, 0, getTitle(), false);
     80     }
     81 
     82     private final DataStateListener mListener = new DataStateListener() {
     83         @Override
     84         public void onChange(boolean selfChange) {
     85             updateEnabled();
     86         }
     87     };
     88 }
     89