blob: 069948b38b96a6f95bc0d1e1b5e739ec1e9f0dab (
plain)
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
|
/*
* Copyright (C) 2012 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.dreams.phototable;
import android.content.SharedPreferences;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
/**
* Common utilities for album settings.
*/
public class AlbumSettings {
public static final String ALBUM_SET = "Enabled Album Set V2";
private static HashMap<SharedPreferences, AlbumSettings> singletons;
private final SharedPreferences mSettings;
private final HashSet<String> mEnabledAlbums;
public static AlbumSettings getAlbumSettings(SharedPreferences settings) {
if (singletons == null) {
singletons = new HashMap<SharedPreferences, AlbumSettings>();
}
if (!singletons.containsKey(settings)) {
singletons.put(settings, new AlbumSettings(settings));
}
return singletons.get(settings);
}
public void readEnabledAlbums() {
synchronized (mEnabledAlbums) {
readEnabledAlbumsLocked();
}
}
public boolean isAlbumEnabled(String albumId) {
synchronized (mEnabledAlbums) {
boolean isEnabled = mEnabledAlbums.contains(albumId);
return mEnabledAlbums.contains(albumId);
}
}
public boolean areAllEnabled(Collection<String> validAlbums) {
synchronized (mEnabledAlbums) {
return mEnabledAlbums.containsAll(validAlbums);
}
}
public void setAlbumEnabled(String albumId, boolean enabled) {
if (isAlbumEnabled(albumId) != enabled) {
synchronized (mEnabledAlbums) {
readEnabledAlbumsLocked();
if (enabled) {
mEnabledAlbums.add(albumId);
} else {
mEnabledAlbums.remove(albumId);
}
writeEnabledAlbumsLocked();
}
}
}
public void disableAllAlbums() {
synchronized (mEnabledAlbums) {
mEnabledAlbums.clear();
writeEnabledAlbumsLocked();
}
}
public void enableAllAlbums(Collection<String> validAlbums) {
synchronized (mEnabledAlbums) {
mEnabledAlbums.clear();
mEnabledAlbums.addAll(validAlbums);
writeEnabledAlbumsLocked();
}
}
public void pruneObsoleteSettings(Collection<String> validAlbums) {
if (!validAlbums.containsAll(mEnabledAlbums)) {
synchronized (mEnabledAlbums) {
readEnabledAlbumsLocked();
mEnabledAlbums.retainAll(validAlbums);
writeEnabledAlbumsLocked();
}
}
}
public boolean isConfigured() {
synchronized (mEnabledAlbums) {
return mEnabledAlbums.size() != 0;
}
}
private AlbumSettings(SharedPreferences settings) {
mSettings = settings;
mEnabledAlbums = new HashSet<String>();
readEnabledAlbums();
}
private void readEnabledAlbumsLocked() {
Set<String> enabledAlbums = mSettings.getStringSet(ALBUM_SET, null);
mEnabledAlbums.clear();
if (enabledAlbums != null) {
mEnabledAlbums.addAll(enabledAlbums);
}
}
private void writeEnabledAlbumsLocked() {
SharedPreferences.Editor editor = mSettings.edit();
// Give SharedSettings a copy, so that we are free to manipulate ours.
editor.putStringSet(ALBUM_SET, new HashSet<String>(mEnabledAlbums));
editor.commit();
}
}
|
