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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.incallui;
     18 
     19 import android.content.Context;
     20 
     21 import com.android.incallui.InCallPresenter.InCallDetailsListener;
     22 import com.android.incallui.InCallPresenter.InCallState;
     23 import com.android.incallui.InCallPresenter.InCallStateListener;
     24 import com.android.incallui.InCallPresenter.IncomingCallListener;
     25 
     26 import com.google.common.base.Preconditions;
     27 
     28 import java.util.ArrayList;
     29 import java.util.List;
     30 
     31 /**
     32  * Logic for call buttons.
     33  */
     34 public class ConferenceManagerPresenter
     35         extends Presenter<ConferenceManagerPresenter.ConferenceManagerUi>
     36         implements InCallStateListener, InCallDetailsListener, IncomingCallListener {
     37 
     38     private Context mContext;
     39 
     40     @Override
     41     public void onUiReady(ConferenceManagerUi ui) {
     42         super.onUiReady(ui);
     43 
     44         // register for call state changes last
     45         InCallPresenter.getInstance().addListener(this);
     46         InCallPresenter.getInstance().addIncomingCallListener(this);
     47     }
     48 
     49     @Override
     50     public void onUiUnready(ConferenceManagerUi ui) {
     51         super.onUiUnready(ui);
     52 
     53         InCallPresenter.getInstance().removeListener(this);
     54         InCallPresenter.getInstance().removeIncomingCallListener(this);
     55     }
     56 
     57     @Override
     58     public void onStateChange(InCallState oldState, InCallState newState, CallList callList) {
     59         if (getUi().isFragmentVisible()) {
     60             Log.v(this, "onStateChange" + newState);
     61             if (newState == InCallState.INCALL) {
     62                 final Call call = callList.getActiveOrBackgroundCall();
     63                 if (call != null && call.isConferenceCall()) {
     64                     Log.v(this, "Number of existing calls is " +
     65                             String.valueOf(call.getChildCallIds().size()));
     66                     update(callList);
     67                 } else {
     68                     InCallPresenter.getInstance().showConferenceCallManager(false);
     69                 }
     70             } else {
     71                 InCallPresenter.getInstance().showConferenceCallManager(false);
     72             }
     73         }
     74     }
     75 
     76     @Override
     77     public void onDetailsChanged(Call call, android.telecom.Call.Details details) {
     78         boolean canDisconnect = details.can(
     79                 android.telecom.Call.Details.CAPABILITY_DISCONNECT_FROM_CONFERENCE);
     80         boolean canSeparate = details.can(
     81                 android.telecom.Call.Details.CAPABILITY_SEPARATE_FROM_CONFERENCE);
     82 
     83         if (call.can(android.telecom.Call.Details.CAPABILITY_DISCONNECT_FROM_CONFERENCE)
     84                 != canDisconnect
     85             || call.can(android.telecom.Call.Details.CAPABILITY_SEPARATE_FROM_CONFERENCE)
     86                 != canSeparate) {
     87             getUi().refreshCall(call);
     88         }
     89 
     90         if (!details.can(
     91                 android.telecom.Call.Details.CAPABILITY_MANAGE_CONFERENCE)) {
     92             InCallPresenter.getInstance().showConferenceCallManager(false);
     93         }
     94     }
     95 
     96     @Override
     97     public void onIncomingCall(InCallState oldState, InCallState newState, Call call) {
     98         // When incoming call exists, set conference ui invisible.
     99         if (getUi().isFragmentVisible()) {
    100             Log.d(this, "onIncomingCall()... Conference ui is showing, hide it.");
    101             InCallPresenter.getInstance().showConferenceCallManager(false);
    102         }
    103     }
    104 
    105     public void init(Context context, CallList callList) {
    106         mContext = Preconditions.checkNotNull(context);
    107         mContext = context;
    108         update(callList);
    109     }
    110 
    111     /**
    112      * Updates the conference participant adapter.
    113      *
    114      * @param callList The callList.
    115      */
    116     private void update(CallList callList) {
    117         // callList is non null, but getActiveOrBackgroundCall() may return null
    118         final Call currentCall = callList.getActiveOrBackgroundCall();
    119         if (currentCall == null) {
    120             return;
    121         }
    122 
    123         ArrayList<Call> calls = new ArrayList<>(currentCall.getChildCallIds().size());
    124         for (String callerId : currentCall.getChildCallIds()) {
    125             calls.add(callList.getCallById(callerId));
    126         }
    127 
    128         Log.d(this, "Number of calls is " + String.valueOf(calls.size()));
    129 
    130         // Users can split out a call from the conference call if either the active call or the
    131         // holding call is empty. If both are filled, users can not split out another call.
    132         final boolean hasActiveCall = (callList.getActiveCall() != null);
    133         final boolean hasHoldingCall = (callList.getBackgroundCall() != null);
    134         boolean canSeparate = !(hasActiveCall && hasHoldingCall);
    135 
    136         getUi().update(mContext, calls, canSeparate);
    137     }
    138 
    139     public interface ConferenceManagerUi extends Ui {
    140         void setVisible(boolean on);
    141         boolean isFragmentVisible();
    142         void update(Context context, List<Call> participants, boolean parentCanSeparate);
    143         void refreshCall(Call call);
    144     }
    145 }
    146