1/*
2 * Copyright (C) 2014 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.server.hdmi;
18
19import static android.hardware.hdmi.HdmiControlManager.ONE_TOUCH_RECORD_CHECK_RECORDER_CONNECTION;
20import static android.hardware.hdmi.HdmiControlManager.ONE_TOUCH_RECORD_RECORDING_ANALOGUE_SERVICE;
21import static android.hardware.hdmi.HdmiControlManager.ONE_TOUCH_RECORD_RECORDING_CURRENTLY_SELECTED_SOURCE;
22import static android.hardware.hdmi.HdmiControlManager.ONE_TOUCH_RECORD_RECORDING_DIGITAL_SERVICE;
23import static android.hardware.hdmi.HdmiControlManager.ONE_TOUCH_RECORD_RECORDING_EXTERNAL_INPUT;
24
25import android.util.Slog;
26
27import com.android.server.hdmi.HdmiControlService.SendMessageCallback;
28
29/**
30 * Feature action that performs one touch record.
31 */
32public class OneTouchRecordAction extends HdmiCecFeatureAction {
33    private static final String TAG = "OneTouchRecordAction";
34
35    // Timer out for waiting <Record Status> 120s
36    private static final int RECORD_STATUS_TIMEOUT_MS = 120000;
37
38    // State that waits for <Record Status> once sending <Record On>
39    private static final int STATE_WAITING_FOR_RECORD_STATUS = 1;
40    // State that describes recording in progress.
41    private static final int STATE_RECORDING_IN_PROGRESS = 2;
42
43    private final int mRecorderAddress;
44    private final byte[] mRecordSource;
45
46    OneTouchRecordAction(HdmiCecLocalDevice source, int recorderAddress, byte[] recordSource) {
47        super(source);
48        mRecorderAddress = recorderAddress;
49        mRecordSource = recordSource;
50    }
51
52    @Override
53    boolean start() {
54        sendRecordOn();
55        return true;
56    }
57
58    private void sendRecordOn() {
59        sendCommand(HdmiCecMessageBuilder.buildRecordOn(getSourceAddress(), mRecorderAddress,
60                mRecordSource),
61                new SendMessageCallback() {
62                @Override
63                    public void onSendCompleted(int error) {
64                        // if failed to send <Record On>, display error message and finish action.
65                        if (error != Constants.SEND_RESULT_SUCCESS) {
66                            tv().announceOneTouchRecordResult(
67                                    mRecorderAddress,
68                                    ONE_TOUCH_RECORD_CHECK_RECORDER_CONNECTION);
69                            finish();
70                            return;
71                        }
72                    }
73                });
74        mState = STATE_WAITING_FOR_RECORD_STATUS;
75        addTimer(mState, RECORD_STATUS_TIMEOUT_MS);
76    }
77
78    @Override
79    boolean processCommand(HdmiCecMessage cmd) {
80        if (mState != STATE_WAITING_FOR_RECORD_STATUS || mRecorderAddress != cmd.getSource()) {
81            return false;
82        }
83
84        switch (cmd.getOpcode()) {
85            case Constants.MESSAGE_RECORD_STATUS:
86                return handleRecordStatus(cmd);
87        }
88        return false;
89    }
90
91    private boolean handleRecordStatus(HdmiCecMessage cmd) {
92        // Only handle message coming from original recorder.
93        if (cmd.getSource() != mRecorderAddress) {
94            return false;
95        }
96
97        int recordStatus = cmd.getParams()[0];
98        tv().announceOneTouchRecordResult(mRecorderAddress, recordStatus);
99        Slog.i(TAG, "Got record status:" + recordStatus + " from " + cmd.getSource());
100
101        // If recording started successfully, change state and keep this action until <Record Off>
102        // received. Otherwise, finish action.
103        switch (recordStatus) {
104            case ONE_TOUCH_RECORD_RECORDING_CURRENTLY_SELECTED_SOURCE:
105            case ONE_TOUCH_RECORD_RECORDING_DIGITAL_SERVICE:
106            case ONE_TOUCH_RECORD_RECORDING_ANALOGUE_SERVICE:
107            case ONE_TOUCH_RECORD_RECORDING_EXTERNAL_INPUT:
108                mState = STATE_RECORDING_IN_PROGRESS;
109                mActionTimer.clearTimerMessage();
110                break;
111            default:
112                finish();
113                break;
114        }
115        return true;
116    }
117
118    @Override
119    void handleTimerEvent(int state) {
120        if (mState != state) {
121            Slog.w(TAG, "Timeout in invalid state:[Expected:" + mState + ", Actual:" + state + "]");
122            return;
123        }
124
125        tv().announceOneTouchRecordResult(mRecorderAddress,
126                ONE_TOUCH_RECORD_CHECK_RECORDER_CONNECTION);
127        finish();
128    }
129
130    int getRecorderAddress() {
131        return mRecorderAddress;
132    }
133}
134