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      1 /*
      2  * Copyright (C) 2011 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.res.Resources;
     20 import android.telephony.PhoneNumberUtils;
     21 import android.text.TextUtils;
     22 
     23 import com.android.dialer.R;
     24 import com.android.internal.telephony.CallerInfo;
     25 
     26 /**
     27  * Helper for formatting and managing phone numbers.
     28  */
     29 public class PhoneNumberHelper {
     30     private final Resources mResources;
     31 
     32     public PhoneNumberHelper(Resources resources) {
     33         mResources = resources;
     34     }
     35 
     36     /** Returns true if it is possible to place a call to the given number. */
     37     public boolean canPlaceCallsTo(CharSequence number) {
     38         return !(TextUtils.isEmpty(number)
     39                 || number.equals(CallerInfo.UNKNOWN_NUMBER)
     40                 || number.equals(CallerInfo.PRIVATE_NUMBER)
     41                 || number.equals(CallerInfo.PAYPHONE_NUMBER));
     42     }
     43 
     44     /** Returns true if it is possible to send an SMS to the given number. */
     45     public boolean canSendSmsTo(CharSequence number) {
     46         return canPlaceCallsTo(number) && !isVoicemailNumber(number) && !isSipNumber(number);
     47     }
     48 
     49     /**
     50      * Returns the string to display for the given phone number.
     51      *
     52      * @param number the number to display
     53      * @param formattedNumber the formatted number if available, may be null
     54      */
     55     public CharSequence getDisplayNumber(CharSequence number, CharSequence formattedNumber) {
     56         if (TextUtils.isEmpty(number)) {
     57             return "";
     58         }
     59         if (number.equals(CallerInfo.UNKNOWN_NUMBER)) {
     60             return mResources.getString(R.string.unknown);
     61         }
     62         if (number.equals(CallerInfo.PRIVATE_NUMBER)) {
     63             return mResources.getString(R.string.private_num);
     64         }
     65         if (number.equals(CallerInfo.PAYPHONE_NUMBER)) {
     66             return mResources.getString(R.string.payphone);
     67         }
     68         if (isVoicemailNumber(number)) {
     69             return mResources.getString(R.string.voicemail);
     70         }
     71         if (TextUtils.isEmpty(formattedNumber)) {
     72             return number;
     73         } else {
     74             return formattedNumber;
     75         }
     76     }
     77 
     78     /**
     79      * Returns true if the given number is the number of the configured voicemail.
     80      * To be able to mock-out this, it is not a static method.
     81      */
     82     public boolean isVoicemailNumber(CharSequence number) {
     83         return PhoneNumberUtils.isVoiceMailNumber(number.toString());
     84     }
     85 
     86     /**
     87      * Returns true if the given number is a SIP address.
     88      * To be able to mock-out this, it is not a static method.
     89      */
     90     public boolean isSipNumber(CharSequence number) {
     91         return PhoneNumberUtils.isUriNumber(number.toString());
     92     }
     93 }
     94