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      1 /*
      2  * Copyright (C) 2013 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 
     17 package com.android.dialer.calllog;
     18 
     19 import android.content.Context;
     20 import android.provider.CallLog;
     21 import android.telecom.PhoneAccount;
     22 import android.telecom.PhoneAccountHandle;
     23 import android.telecom.TelecomManager;
     24 import android.text.TextUtils;
     25 import android.util.Log;
     26 import android.util.Pair;
     27 
     28 import com.android.contacts.common.CallUtil;
     29 import com.android.contacts.common.util.PhoneNumberHelper;
     30 import com.android.dialer.util.PhoneNumberUtil;
     31 import com.google.common.collect.Sets;
     32 
     33 import java.util.HashMap;
     34 import java.util.Map;
     35 import java.util.Set;
     36 
     37 /**
     38  * Keeps a cache of recently made queries to the Telecom process. The aim of this cache is to
     39  * reduce the number of cross-process requests to TelecomManager, which can negatively affect
     40  * performance.
     41  *
     42  * This is designed with the specific use case of the {@link CallLogAdapter} in mind.
     43  */
     44 public class TelecomCallLogCache {
     45     private final Context mContext;
     46 
     47     // Maps from a phone-account/number pair to a boolean because multiple numbers could return true
     48     // for the voicemail number if those numbers are not pre-normalized.
     49     // TODO: Dialer should be fixed so as not to check isVoicemail() so often but at the time of
     50     // this writing, that was a much larger undertaking than creating this cache.
     51     private final Map<Pair<PhoneAccountHandle, CharSequence>, Boolean> mVoicemailQueryCache =
     52             new HashMap<>();
     53     private final Map<PhoneAccountHandle, String> mPhoneAccountLabelCache = new HashMap<>();
     54     private final Map<PhoneAccountHandle, Integer> mPhoneAccountColorCache = new HashMap<>();
     55 
     56     private boolean mHasCheckedForVideoEnabled;
     57     private boolean mIsVideoEnabled;
     58 
     59     public TelecomCallLogCache(Context context) {
     60         mContext = context;
     61     }
     62 
     63     public void reset() {
     64         mVoicemailQueryCache.clear();
     65         mPhoneAccountLabelCache.clear();
     66         mPhoneAccountColorCache.clear();
     67 
     68         mHasCheckedForVideoEnabled = false;
     69         mIsVideoEnabled = false;
     70     }
     71 
     72     /**
     73      * Returns true if the given number is the number of the configured voicemail. To be able to
     74      * mock-out this, it is not a static method.
     75      */
     76     public boolean isVoicemailNumber(PhoneAccountHandle accountHandle, CharSequence number) {
     77         if (TextUtils.isEmpty(number)) {
     78             return false;
     79         }
     80 
     81         Pair<PhoneAccountHandle, CharSequence> key = new Pair<>(accountHandle, number);
     82         if (mVoicemailQueryCache.containsKey(key)) {
     83             return mVoicemailQueryCache.get(key);
     84         } else {
     85             Boolean isVoicemail =
     86                     PhoneNumberUtil.isVoicemailNumber(mContext, accountHandle, number.toString());
     87             mVoicemailQueryCache.put(key, isVoicemail);
     88             return isVoicemail;
     89         }
     90     }
     91 
     92     /**
     93      * Extract account label from PhoneAccount object.
     94      */
     95     public String getAccountLabel(PhoneAccountHandle accountHandle) {
     96         if (mPhoneAccountLabelCache.containsKey(accountHandle)) {
     97             return mPhoneAccountLabelCache.get(accountHandle);
     98         } else {
     99             String label = PhoneAccountUtils.getAccountLabel(mContext, accountHandle);
    100             mPhoneAccountLabelCache.put(accountHandle, label);
    101             return label;
    102         }
    103     }
    104 
    105     /**
    106      * Extract account color from PhoneAccount object.
    107      */
    108     public int getAccountColor(PhoneAccountHandle accountHandle) {
    109         if (mPhoneAccountColorCache.containsKey(accountHandle)) {
    110             return mPhoneAccountColorCache.get(accountHandle);
    111         } else {
    112             Integer color = PhoneAccountUtils.getAccountColor(mContext, accountHandle);
    113             mPhoneAccountColorCache.put(accountHandle, color);
    114             return color;
    115         }
    116     }
    117 
    118     public boolean isVideoEnabled() {
    119         if (!mHasCheckedForVideoEnabled) {
    120             mIsVideoEnabled = CallUtil.isVideoEnabled(mContext);
    121         }
    122         return mIsVideoEnabled;
    123     }
    124 }
    125