1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package org.libreoffice.impressremote.communication;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import android.text.TextUtils;
import android.util.Base64;
public class MessagesReceiver implements Runnable {
private final BufferedReader mMessagesReader;
private final MessagesListener mMessagesListener;
public MessagesReceiver(ServerConnection aServerConnection, MessagesListener aMessagesListener) {
mMessagesReader = buildMessagesReader(aServerConnection);
mMessagesListener = aMessagesListener;
Thread mMessagesListenerThread = new Thread(this);
mMessagesListenerThread.start();
}
private BufferedReader buildMessagesReader(ServerConnection aServerConnection) {
try {
InputStream aMessagesStream = aServerConnection.buildMessagesStream();
return new BufferedReader(
new InputStreamReader(aMessagesStream, Protocol.CHARSET));
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("Unable to create messages reader.");
}
}
@Override
public void run() {
while (true) {
List<String> aMessage = readMessage();
if (aMessage == null) {
return;
}
parseMessage(aMessage);
}
}
private List<String> readMessage() {
List<String> aMessage = new ArrayList<String>();
String aMessageParameter = readMessageParameter();
while (true) {
if (aMessageParameter == null) {
break;
}
if (TextUtils.isEmpty(aMessageParameter)) {
break;
}
aMessage.add(aMessageParameter);
aMessageParameter = readMessageParameter();
}
if (aMessageParameter == null) {
return null;
}
return aMessage;
}
private String readMessageParameter() {
try {
return mMessagesReader.readLine();
} catch (IOException e) {
return null;
}
}
private void parseMessage(List<String> aMessage) {
if (aMessage.isEmpty()) {
return;
}
String aMessageType = aMessage.get(0);
if (Protocol.Messages.VALIDATING.equals(aMessageType)) {
mMessagesListener.onPinValidation();
return;
}
if (Protocol.Messages.PAIRED.equals(aMessageType)) {
mMessagesListener.onSuccessfulPairing();
return;
}
if (Protocol.Messages.SLIDESHOW_STARTED.equals(aMessageType)) {
int aSlidesCount = parseSlidesCount(aMessage, 1);
int aCurrentSlideIndex = parseSlideIndex(aMessage, 2);
mMessagesListener.onSlideShowStart(aSlidesCount, aCurrentSlideIndex);
return;
}
if (Protocol.Messages.SLIDESHOW_FINISHED.equals(aMessageType)) {
mMessagesListener.onSlideShowFinish();
return;
}
if (Protocol.Messages.SLIDE_UPDATED.equals(aMessageType)) {
int aCurrentSlideIndex = parseSlideIndex(aMessage, 1);
mMessagesListener.onSlideChanged(aCurrentSlideIndex);
return;
}
if (Protocol.Messages.SLIDE_PREVIEW.equals(aMessageType)) {
int aSlideIndex = parseSlideIndex(aMessage, 1);
byte[] aSlidePreview = parseSlidePreview(aMessage, 2);
mMessagesListener.onSlidePreview(aSlideIndex, aSlidePreview);
return;
}
if (Protocol.Messages.SLIDE_NOTES.equals(aMessageType)) {
int aSlideIndex = parseSlideIndex(aMessage, 1);
String aSlideNotes = parseSlideNotes(aMessage, 2);
mMessagesListener.onSlideNotes(aSlideIndex, aSlideNotes);
}
}
private int parseSlidesCount(List<String> aMessage, int aMessageParameterIndex) {
return Integer.parseInt(aMessage.get(aMessageParameterIndex));
}
private int parseSlideIndex(List<String> aMessage, int aMessageParameterIndex) {
return Integer.parseInt(aMessage.get(aMessageParameterIndex));
}
private byte[] parseSlidePreview(List<String> aMessage, int aMessageParameterIndex) {
String aPreviewAsString = aMessage.get(aMessageParameterIndex);
return Base64.decode(aPreviewAsString, Base64.DEFAULT);
}
private String parseSlideNotes(List<String> aMessage, int aMessageParameterIndex) {
StringBuilder aNotesBuilder = new StringBuilder();
for (int aNoteIndex = aMessageParameterIndex; aNoteIndex < aMessage.size(); aNoteIndex++) {
aNotesBuilder.append(aMessage.get(aNoteIndex));
}
return aNotesBuilder.toString();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
