Preferences.java revision 687f9962d7095e18ef994cd0e64337f02ed1a5bd 
1/*
2 * Copyright (C) 2008 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.email;
18
19import java.util.Arrays;
20
21import android.content.Context;
22import android.content.SharedPreferences;
23import android.net.Uri;
24import android.util.Config;
25import android.util.Log;
26
27public class Preferences {
28    private static Preferences preferences;
29
30    SharedPreferences mSharedPreferences;
31
32    private Preferences(Context context) {
33        mSharedPreferences = context.getSharedPreferences("AndroidMail.Main", Context.MODE_PRIVATE);
34    }
35
36    /**
37     * TODO need to think about what happens if this gets GCed along with the
38     * Activity that initialized it. Do we lose ability to read Preferences in
39     * further Activities? Maybe this should be stored in the Application
40     * context.
41     *
42     * @return
43     */
44    public static synchronized Preferences getPreferences(Context context) {
45        if (preferences == null) {
46            preferences = new Preferences(context);
47        }
48        return preferences;
49    }
50
51    /**
52     * Returns an array of the accounts on the system. If no accounts are
53     * registered the method returns an empty array.
54     *
55     * @return
56     */
57    public Account[] getAccounts() {
58        String accountUuids = mSharedPreferences.getString("accountUuids", null);
59        if (accountUuids == null || accountUuids.length() == 0) {
60            return new Account[] {};
61        }
62        String[] uuids = accountUuids.split(",");
63        Account[] accounts = new Account[uuids.length];
64        for (int i = 0, length = uuids.length; i < length; i++) {
65            accounts[i] = new Account(this, uuids[i]);
66        }
67        return accounts;
68    }
69
70    public Account getAccountByContentUri(Uri uri) {
71        return new Account(this, uri.getPath().substring(1));
72    }
73
74    /**
75     * Returns the Account marked as default. If no account is marked as default
76     * the first account in the list is marked as default and then returned. If
77     * there are no accounts on the system the method returns null.
78     *
79     * @return
80     */
81    public Account getDefaultAccount() {
82        String defaultAccountUuid = mSharedPreferences.getString("defaultAccountUuid", null);
83        Account defaultAccount = null;
84        Account[] accounts = getAccounts();
85        if (defaultAccountUuid != null) {
86            for (Account account : accounts) {
87                if (account.getUuid().equals(defaultAccountUuid)) {
88                    defaultAccount = account;
89                    break;
90                }
91            }
92        }
93
94        if (defaultAccount == null) {
95            if (accounts.length > 0) {
96                defaultAccount = accounts[0];
97                setDefaultAccount(defaultAccount);
98            }
99        }
100
101        return defaultAccount;
102    }
103
104    public void setDefaultAccount(Account account) {
105        mSharedPreferences.edit().putString("defaultAccountUuid", account.getUuid()).commit();
106    }
107
108    public void setEnableDebugLogging(boolean value) {
109        mSharedPreferences.edit().putBoolean("enableDebugLogging", value).commit();
110    }
111
112    public boolean geteEnableDebugLogging() {
113        return mSharedPreferences.getBoolean("enableDebugLogging", false);
114    }
115
116    public void setEnableSensitiveLogging(boolean value) {
117        mSharedPreferences.edit().putBoolean("enableSensitiveLogging", value).commit();
118    }
119
120    public boolean getEnableSensitiveLogging() {
121        return mSharedPreferences.getBoolean("enableSensitiveLogging", false);
122    }
123
124    public void save() {
125    }
126
127    public void clear() {
128        mSharedPreferences.edit().clear().commit();
129    }
130
131    public void dump() {
132        if (Config.LOGV) {
133            for (String key : mSharedPreferences.getAll().keySet()) {
134                Log.v(Email.LOG_TAG, key + " = " + mSharedPreferences.getAll().get(key));
135            }
136        }
137    }
138}
139