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
|
/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.openpgp.util;
import org.openintents.openpgp.IOpenPgpService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
public class OpenPgpServiceConnection {
// callback interface
public interface OnBound {
public void onBound(IOpenPgpService service);
public void onError(Exception e);
}
private Context mApplicationContext;
private IOpenPgpService mService;
private String mProviderPackageName;
private OnBound mOnBoundListener;
/**
* Create new connection
*
* @param context
* @param providerPackageName specify package name of OpenPGP provider,
* e.g., "org.sufficientlysecure.keychain"
*/
public OpenPgpServiceConnection(Context context, String providerPackageName) {
this.mApplicationContext = context;
this.mProviderPackageName = providerPackageName;
}
/**
* Create new connection with callback
*
* @param context
* @param providerPackageName specify package name of OpenPGP provider,
* e.g., "org.sufficientlysecure.keychain"
* @param onBoundListener callback, executed when connection to service has been established
*/
public OpenPgpServiceConnection(Context context, String providerPackageName,
OnBound onBoundListener) {
this(context, providerPackageName);
this.mOnBoundListener = onBoundListener;
}
public IOpenPgpService getService() {
return mService;
}
public boolean isBound() {
return (mService != null);
}
private ServiceConnection mServiceConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName name, IBinder service) {
mService = IOpenPgpService.Stub.asInterface(service);
if (mOnBoundListener != null) {
mOnBoundListener.onBound(mService);
}
}
public void onServiceDisconnected(ComponentName name) {
mService = null;
}
};
/**
* If not already bound, bind to service!
*
* @return
*/
public void bindToService() {
// if not already bound...
if (mService == null) {
try {
Intent serviceIntent = new Intent(OpenPgpApi.SERVICE_INTENT);
// NOTE: setPackage is very important to restrict the intent to this provider only!
serviceIntent.setPackage(mProviderPackageName);
mApplicationContext.bindService(serviceIntent, mServiceConnection,
Context.BIND_AUTO_CREATE);
} catch (Exception e) {
if (mOnBoundListener != null) {
mOnBoundListener.onError(e);
}
}
} else {
// already bound, but also inform client about it with callback
if (mOnBoundListener != null) {
mOnBoundListener.onBound(mService);
}
}
}
public void unbindFromService() {
mApplicationContext.unbindService(mServiceConnection);
}
}
|
