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      1 /*
      2  * Copyright (C) 2017 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.app.list;
     18 
     19 import android.app.Fragment;
     20 import android.app.FragmentManager;
     21 import android.content.Context;
     22 import android.support.annotation.IntDef;
     23 import android.support.v13.app.FragmentPagerAdapter;
     24 import android.view.ViewGroup;
     25 import com.android.dialer.app.calllog.CallLogFragment;
     26 import com.android.dialer.app.calllog.VisualVoicemailCallLogFragment;
     27 import com.android.dialer.calllog.CallLogComponent;
     28 import com.android.dialer.calllog.CallLogFramework;
     29 import com.android.dialer.calllog.ui.NewCallLogFragment;
     30 import com.android.dialer.common.Assert;
     31 import com.android.dialer.common.ConfigProviderBindings;
     32 import com.android.dialer.common.LogUtil;
     33 import com.android.dialer.contactsfragment.ContactsFragment;
     34 import com.android.dialer.database.CallLogQueryHandler;
     35 import com.android.dialer.speeddial.SpeedDialFragment;
     36 import com.android.dialer.util.ViewUtil;
     37 import java.lang.annotation.Retention;
     38 import java.lang.annotation.RetentionPolicy;
     39 import java.util.ArrayList;
     40 import java.util.Collections;
     41 import java.util.List;
     42 
     43 /** ViewPager adapter for {@link com.android.dialer.app.DialtactsActivity}. */
     44 public class DialtactsPagerAdapter extends FragmentPagerAdapter {
     45 
     46   /** IntDef for indices of ViewPager tabs. */
     47   @Retention(RetentionPolicy.SOURCE)
     48   @IntDef({TAB_INDEX_SPEED_DIAL, TAB_INDEX_HISTORY, TAB_INDEX_ALL_CONTACTS, TAB_INDEX_VOICEMAIL})
     49   public @interface TabIndex {}
     50 
     51   public static final int TAB_INDEX_SPEED_DIAL = 0;
     52   public static final int TAB_INDEX_HISTORY = 1;
     53   public static final int TAB_INDEX_ALL_CONTACTS = 2;
     54   public static final int TAB_INDEX_VOICEMAIL = 3;
     55   public static final int TAB_COUNT_DEFAULT = 3;
     56   public static final int TAB_COUNT_WITH_VOICEMAIL = 4;
     57 
     58   private final List<Fragment> fragments = new ArrayList<>();
     59   private final String[] tabTitles;
     60   private final boolean useNewSpeedDialTab;
     61   private final boolean useNewCallLogTab;
     62   private final boolean useNewContactsTab;
     63   private OldSpeedDialFragment oldSpeedDialFragment;
     64   private SpeedDialFragment speedDialFragment;
     65   private CallLogFragment callLogFragment;
     66   private NewCallLogFragment newCallLogFragment;
     67   private AllContactsFragment oldContactsFragment;
     68   private ContactsFragment contactsFragment;
     69   private CallLogFragment voicemailFragment;
     70 
     71   public boolean hasActiveVoicemailProvider;
     72 
     73   public DialtactsPagerAdapter(
     74       Context context, FragmentManager fm, String[] tabTitles, boolean hasVoicemailProvider) {
     75     super(fm);
     76     useNewSpeedDialTab =
     77         ConfigProviderBindings.get(context).getBoolean("enable_new_favorites_tab", false);
     78     CallLogFramework callLogFramework = CallLogComponent.get(context).callLogFramework();
     79     useNewCallLogTab = callLogFramework.isNewCallLogEnabled(context);
     80     useNewContactsTab =
     81         ConfigProviderBindings.get(context).getBoolean("enable_new_contacts_tab", false);
     82     this.tabTitles = tabTitles;
     83     hasActiveVoicemailProvider = hasVoicemailProvider;
     84     fragments.addAll(Collections.nCopies(TAB_COUNT_WITH_VOICEMAIL, null));
     85   }
     86 
     87   @Override
     88   public long getItemId(int position) {
     89     return getRtlPosition(position);
     90   }
     91 
     92   @Override
     93   public Fragment getItem(int position) {
     94     LogUtil.d("ViewPagerAdapter.getItem", "position: %d", position);
     95     switch (getRtlPosition(position)) {
     96       case TAB_INDEX_SPEED_DIAL:
     97         if (useNewSpeedDialTab) {
     98           if (speedDialFragment == null) {
     99             speedDialFragment = SpeedDialFragment.newInstance();
    100           }
    101           return speedDialFragment;
    102         } else {
    103           if (oldSpeedDialFragment == null) {
    104             oldSpeedDialFragment = new OldSpeedDialFragment();
    105           }
    106           return oldSpeedDialFragment;
    107         }
    108       case TAB_INDEX_HISTORY:
    109         if (useNewCallLogTab) {
    110           if (newCallLogFragment == null) {
    111             newCallLogFragment = new NewCallLogFragment();
    112           }
    113           return newCallLogFragment;
    114         } else {
    115           if (callLogFragment == null) {
    116             callLogFragment = new CallLogFragment(CallLogQueryHandler.CALL_TYPE_ALL);
    117           }
    118           return callLogFragment;
    119         }
    120       case TAB_INDEX_ALL_CONTACTS:
    121         if (useNewContactsTab) {
    122           if (contactsFragment == null) {
    123             contactsFragment = new ContactsFragment();
    124           }
    125           return contactsFragment;
    126         } else {
    127           if (oldContactsFragment == null) {
    128             oldContactsFragment = new AllContactsFragment();
    129           }
    130           return oldContactsFragment;
    131         }
    132       case TAB_INDEX_VOICEMAIL:
    133         if (voicemailFragment == null) {
    134           voicemailFragment = new VisualVoicemailCallLogFragment();
    135           LogUtil.v(
    136               "ViewPagerAdapter.getItem",
    137               "new VisualVoicemailCallLogFragment: %s",
    138               voicemailFragment);
    139         }
    140         return voicemailFragment;
    141       default:
    142         throw Assert.createIllegalStateFailException("No fragment at position " + position);
    143     }
    144   }
    145 
    146   @Override
    147   public Fragment instantiateItem(ViewGroup container, int position) {
    148     LogUtil.d("ViewPagerAdapter.instantiateItem", "position: %d", position);
    149     // On rotation the FragmentManager handles rotation. Therefore getItem() isn't called.
    150     // Copy the fragments that the FragmentManager finds so that we can store them in
    151     // instance variables for later.
    152     final Fragment fragment = (Fragment) super.instantiateItem(container, position);
    153     if (fragment instanceof OldSpeedDialFragment) {
    154       oldSpeedDialFragment = (OldSpeedDialFragment) fragment;
    155     } else if (fragment instanceof SpeedDialFragment) {
    156       speedDialFragment = (SpeedDialFragment) fragment;
    157     } else if (fragment instanceof CallLogFragment && position == TAB_INDEX_HISTORY) {
    158       callLogFragment = (CallLogFragment) fragment;
    159     } else if (fragment instanceof NewCallLogFragment) {
    160       newCallLogFragment = (NewCallLogFragment) fragment;
    161     } else if (fragment instanceof ContactsFragment) {
    162       contactsFragment = (ContactsFragment) fragment;
    163     } else if (fragment instanceof AllContactsFragment) {
    164       oldContactsFragment = (AllContactsFragment) fragment;
    165     } else if (fragment instanceof CallLogFragment && position == TAB_INDEX_VOICEMAIL) {
    166       voicemailFragment = (CallLogFragment) fragment;
    167       LogUtil.v("ViewPagerAdapter.instantiateItem", voicemailFragment.toString());
    168     }
    169     fragments.set(position, fragment);
    170     return fragment;
    171   }
    172 
    173   /**
    174    * When {@link android.support.v4.view.PagerAdapter#notifyDataSetChanged} is called, this method
    175    * is called on all pages to determine whether they need to be recreated. When the voicemail tab
    176    * is removed, the view needs to be recreated by returning POSITION_NONE. If notifyDataSetChanged
    177    * is called for some other reason, the voicemail tab is recreated only if it is active. All other
    178    * tabs do not need to be recreated and POSITION_UNCHANGED is returned.
    179    */
    180   @Override
    181   public int getItemPosition(Object object) {
    182     return !hasActiveVoicemailProvider && fragments.indexOf(object) == TAB_INDEX_VOICEMAIL
    183         ? POSITION_NONE
    184         : POSITION_UNCHANGED;
    185   }
    186 
    187   @Override
    188   public int getCount() {
    189     return hasActiveVoicemailProvider ? TAB_COUNT_WITH_VOICEMAIL : TAB_COUNT_DEFAULT;
    190   }
    191 
    192   @Override
    193   public CharSequence getPageTitle(@TabIndex int position) {
    194     return tabTitles[position];
    195   }
    196 
    197   public int getRtlPosition(int position) {
    198     if (ViewUtil.isRtl()) {
    199       return getCount() - 1 - position;
    200     }
    201     return position;
    202   }
    203 
    204   public void removeVoicemailFragment(FragmentManager manager) {
    205     if (voicemailFragment != null) {
    206       manager.beginTransaction().remove(voicemailFragment).commitAllowingStateLoss();
    207       voicemailFragment = null;
    208     }
    209   }
    210 
    211   public boolean hasActiveVoicemailProvider() {
    212     return hasActiveVoicemailProvider;
    213   }
    214 
    215   public void setHasActiveVoicemailProvider(boolean hasActiveVoicemailProvider) {
    216     this.hasActiveVoicemailProvider = hasActiveVoicemailProvider;
    217   }
    218 }
    219