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      1 /*
      2  * Copyright (C) 2010 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.contacts.util;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.content.pm.PackageManager;
     22 import android.content.pm.ResolveInfo;
     23 import android.net.Uri;
     24 import android.net.sip.SipManager;
     25 import android.provider.MediaStore;
     26 import android.telephony.TelephonyManager;
     27 
     28 import com.android.contacts.common.CallUtil;
     29 import com.android.contacts.R;
     30 
     31 import java.util.List;
     32 
     33 /**
     34  * Provides static functions to quickly test the capabilities of this device. The static
     35  * members are not safe for threading
     36  */
     37 public final class PhoneCapabilityTester {
     38     private static boolean sIsInitialized;
     39     private static boolean sIsPhone;
     40     private static boolean sIsSipPhone;
     41 
     42     /**
     43      * Tests whether the Intent has a receiver registered. This can be used to show/hide
     44      * functionality (like Phone, SMS)
     45      */
     46     public static boolean isIntentRegistered(Context context, Intent intent) {
     47         final PackageManager packageManager = context.getPackageManager();
     48         final List<ResolveInfo> receiverList = packageManager.queryIntentActivities(intent,
     49                 PackageManager.MATCH_DEFAULT_ONLY);
     50         return receiverList.size() > 0;
     51     }
     52 
     53     /**
     54      * Returns true if this device can be used to make phone calls
     55      */
     56     public static boolean isPhone(Context context) {
     57         if (!sIsInitialized) initialize(context);
     58         // Is the device physically capabable of making phone calls?
     59         return sIsPhone;
     60     }
     61 
     62     private static void initialize(Context context) {
     63         final TelephonyManager telephonyManager = new TelephonyManager(context);
     64         sIsPhone = telephonyManager.isVoiceCapable();
     65         sIsSipPhone = sIsPhone && SipManager.isVoipSupported(context);
     66         sIsInitialized = true;
     67     }
     68 
     69     /**
     70      * Returns true if this device can be used to make sip calls
     71      */
     72     public static boolean isSipPhone(Context context) {
     73         if (!sIsInitialized) initialize(context);
     74         return sIsSipPhone;
     75     }
     76 
     77     /**
     78      * Returns true if the device has an SMS application installed.
     79      */
     80     public static boolean isSmsIntentRegistered(Context context) {
     81         // Don't cache the result as the user might install third party apps to send SMS
     82         final Intent intent = new Intent(Intent.ACTION_SENDTO,
     83                 Uri.fromParts(CallUtil.SCHEME_SMSTO, "", null));
     84         return isIntentRegistered(context, intent);
     85     }
     86 
     87     /**
     88      * Returns true if there is a camera on the device
     89      */
     90     public static boolean isCameraIntentRegistered(Context context) {
     91         final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
     92         return isIntentRegistered(context, intent);
     93     }
     94 
     95     /**
     96      * True if we are using two-pane layouts ("tablet mode"), false if we are using single views
     97      * ("phone mode")
     98      */
     99     public static boolean isUsingTwoPanes(Context context) {
    100         return context.getResources().getBoolean(R.bool.config_use_two_panes);
    101     }
    102 
    103     /**
    104      * True if the favorites tab should be shown in two-pane mode.  False, otherwise.
    105      */
    106     public static boolean isUsingTwoPanesInFavorites(Context context) {
    107         return context.getResources().getBoolean(R.bool.config_use_two_panes_in_favorites);
    108     }
    109 }
    110