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
173
174
175
176
177
178
179
180
181
182
183
|
/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 com.android.systemui.statusbar.policy;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import com.android.internal.widget.LockPatternUtils;
import com.android.keyguard.KeyguardUpdateMonitor;
import com.android.systemui.statusbar.phone.KeyguardPreviewContainer;
import java.util.List;
/**
* Utility class to inflate previews for phone and camera affordance.
*/
public class PreviewInflater {
private static final String TAG = "PreviewInflater";
private static final String META_DATA_KEYGUARD_LAYOUT = "com.android.keyguard.layout";
private Context mContext;
private LockPatternUtils mLockPatternUtils;
public PreviewInflater(Context context, LockPatternUtils lockPatternUtils) {
mContext = context;
mLockPatternUtils = lockPatternUtils;
}
public View inflatePreview(Intent intent) {
WidgetInfo info = getWidgetInfo(intent);
return inflatePreview(info);
}
public View inflatePreviewFromService(ComponentName componentName) {
WidgetInfo info = getWidgetInfoFromService(componentName);
return inflatePreview(info);
}
private KeyguardPreviewContainer inflatePreview(WidgetInfo info) {
if (info == null) {
return null;
}
View v = inflateWidgetView(info);
if (v == null) {
return null;
}
KeyguardPreviewContainer container = new KeyguardPreviewContainer(mContext, null);
container.addView(v);
return container;
}
private View inflateWidgetView(WidgetInfo widgetInfo) {
View widgetView = null;
try {
Context appContext = mContext.createPackageContext(
widgetInfo.contextPackage, Context.CONTEXT_RESTRICTED);
LayoutInflater appInflater = (LayoutInflater)
appContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
appInflater = appInflater.cloneInContext(appContext);
widgetView = appInflater.inflate(widgetInfo.layoutId, null, false);
} catch (PackageManager.NameNotFoundException|RuntimeException e) {
Log.w(TAG, "Error creating widget view", e);
}
return widgetView;
}
private WidgetInfo getWidgetInfoFromService(ComponentName componentName) {
PackageManager packageManager = mContext.getPackageManager();
// Look for the preview specified in the service meta-data
try {
Bundle metaData = packageManager.getServiceInfo(
componentName, PackageManager.GET_META_DATA).metaData;
return getWidgetInfoFromMetaData(componentName.getPackageName(), metaData);
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Failed to load preview; " + componentName.flattenToShortString()
+ " not found", e);
}
return null;
}
private WidgetInfo getWidgetInfoFromMetaData(String contextPackage,
Bundle metaData) {
if (metaData == null) {
return null;
}
int layoutId = metaData.getInt(META_DATA_KEYGUARD_LAYOUT);
if (layoutId == 0) {
return null;
}
WidgetInfo info = new WidgetInfo();
info.contextPackage = contextPackage;
info.layoutId = layoutId;
return info;
}
private WidgetInfo getWidgetInfo(Intent intent) {
PackageManager packageManager = mContext.getPackageManager();
final List<ResolveInfo> appList = packageManager.queryIntentActivitiesAsUser(
intent, PackageManager.MATCH_DEFAULT_ONLY, KeyguardUpdateMonitor.getCurrentUser());
if (appList.size() == 0) {
return null;
}
ResolveInfo resolved = packageManager.resolveActivityAsUser(intent,
PackageManager.MATCH_DEFAULT_ONLY | PackageManager.GET_META_DATA,
KeyguardUpdateMonitor.getCurrentUser());
if (wouldLaunchResolverActivity(resolved, appList)) {
return null;
}
if (resolved == null || resolved.activityInfo == null) {
return null;
}
return getWidgetInfoFromMetaData(resolved.activityInfo.packageName,
resolved.activityInfo.metaData);
}
public static boolean wouldLaunchResolverActivity(Context ctx, Intent intent,
int currentUserId) {
return getTargetPackage(ctx, intent, currentUserId) == null;
}
/**
* @return the target package of the intent it resolves to a specific package or {@code null} if
* it resolved to the resolver activity
*/
public static String getTargetPackage(Context ctx, Intent intent,
int currentUserId) {
PackageManager packageManager = ctx.getPackageManager();
final List<ResolveInfo> appList = packageManager.queryIntentActivitiesAsUser(
intent, PackageManager.MATCH_DEFAULT_ONLY, currentUserId);
if (appList.size() == 0) {
return null;
}
ResolveInfo resolved = packageManager.resolveActivityAsUser(intent,
PackageManager.MATCH_DEFAULT_ONLY | PackageManager.GET_META_DATA, currentUserId);
if (resolved == null || wouldLaunchResolverActivity(resolved, appList)) {
return null;
} else {
return resolved.activityInfo.packageName;
}
}
private static boolean wouldLaunchResolverActivity(
ResolveInfo resolved, List<ResolveInfo> appList) {
// If the list contains the above resolved activity, then it can't be
// ResolverActivity itself.
for (int i = 0; i < appList.size(); i++) {
ResolveInfo tmp = appList.get(i);
if (tmp.activityInfo.name.equals(resolved.activityInfo.name)
&& tmp.activityInfo.packageName.equals(resolved.activityInfo.packageName)) {
return false;
}
}
return true;
}
private static class WidgetInfo {
String contextPackage;
int layoutId;
}
}
|
