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
17package com.android.incallui;
18
19import android.content.Context;
20
21import com.android.incallui.InCallPresenter.InCallDetailsListener;
22import com.android.incallui.InCallPresenter.InCallState;
23import com.android.incallui.InCallPresenter.InCallStateListener;
24import com.android.incallui.InCallPresenter.IncomingCallListener;
25
26import com.google.common.base.Preconditions;
27
28import java.util.ArrayList;
29import java.util.List;
30
31/**
32 * Logic for call buttons.
33 */
34public 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        boolean isFragmentVisible();
141        void update(Context context, List<Call> participants, boolean parentCanSeparate);
142        void refreshCall(Call call);
143    }
144}
145