1/*
2 * Copyright (C) 2007 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.calendar;
18
19import android.content.Context;
20import android.content.SharedPreferences;
21import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
22import android.content.pm.PackageInfo;
23import android.content.pm.PackageManager.NameNotFoundException;
24import android.os.Bundle;
25import android.preference.CheckBoxPreference;
26import android.preference.ListPreference;
27import android.preference.Preference;
28import android.preference.Preference.OnPreferenceChangeListener;
29import android.preference.PreferenceActivity;
30import android.preference.PreferenceManager;
31import android.preference.PreferenceScreen;
32import android.preference.RingtonePreference;
33import android.provider.Calendar.CalendarCache;
34import android.text.TextUtils;
35
36public class CalendarPreferenceActivity extends PreferenceActivity implements
37        OnSharedPreferenceChangeListener, OnPreferenceChangeListener {
38    private static final String BUILD_VERSION = "build_version";
39
40    // The name of the shared preferences file. This name must be maintained for historical
41    // reasons, as it's what PreferenceManager assigned the first time the file was created.
42    private static final String SHARED_PREFS_NAME = "com.android.calendar_preferences";
43
44    // Preference keys
45    static final String KEY_HIDE_DECLINED = "preferences_hide_declined";
46    static final String KEY_ALERTS_TYPE = "preferences_alerts_type";
47    static final String KEY_ALERTS_VIBRATE = "preferences_alerts_vibrate";
48    static final String KEY_ALERTS_VIBRATE_WHEN = "preferences_alerts_vibrateWhen";
49    static final String KEY_ALERTS_RINGTONE = "preferences_alerts_ringtone";
50    static final String KEY_DEFAULT_REMINDER = "preferences_default_reminder";
51    static final String KEY_START_VIEW = "startView";
52    static final String KEY_DETAILED_VIEW = "preferredDetailedView";
53    static final String KEY_DEFAULT_CALENDAR = "preference_defaultCalendar";
54    static final String KEY_HOME_TZ_ENABLED = "preferences_home_tz_enabled";
55    static final String KEY_HOME_TZ = "preferences_home_tz";
56
57    // These must be in sync with the array preferences_alert_type_values
58    static final String ALERT_TYPE_ALERTS = "0";
59    static final String ALERT_TYPE_STATUS_BAR = "1";
60    static final String ALERT_TYPE_OFF = "2";
61
62    // Default preference values
63    static final String DEFAULT_START_VIEW =
64            CalendarApplication.ACTIVITY_NAMES[CalendarApplication.MONTH_VIEW_ID];
65    static final String DEFAULT_DETAILED_VIEW =
66            CalendarApplication.ACTIVITY_NAMES[CalendarApplication.DAY_VIEW_ID];
67
68
69    ListPreference mAlertType;
70    ListPreference mVibrateWhen;
71    RingtonePreference mRingtone;
72    CheckBoxPreference mUseHomeTZ;
73    ListPreference mHomeTZ;
74
75    private static CharSequence[][] mTimezones;
76
77    // In case we need to update something later
78    private Runnable mTZUpdater = null;
79
80    /** Return a properly configured SharedPreferences instance */
81    public static SharedPreferences getSharedPreferences(Context context) {
82        return context.getSharedPreferences(SHARED_PREFS_NAME, Context.MODE_PRIVATE);
83    }
84
85    /** Set the default shared preferences in the proper context */
86    public static void setDefaultValues(Context context) {
87        PreferenceManager.setDefaultValues(context, SHARED_PREFS_NAME, Context.MODE_PRIVATE,
88                R.xml.preferences, false);
89    }
90
91    @Override
92    protected void onCreate(Bundle icicle) {
93        super.onCreate(icicle);
94
95        // Make sure to always use the same preferences file regardless of the package name
96        // we're running under
97        PreferenceManager preferenceManager = getPreferenceManager();
98        SharedPreferences sharedPreferences = getSharedPreferences(this);
99        preferenceManager.setSharedPreferencesName(SHARED_PREFS_NAME);
100
101        // Load the preferences from an XML resource
102        addPreferencesFromResource(R.xml.preferences);
103
104        PreferenceScreen preferenceScreen = getPreferenceScreen();
105        preferenceScreen.getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
106        mAlertType = (ListPreference) preferenceScreen.findPreference(KEY_ALERTS_TYPE);
107        mVibrateWhen = (ListPreference) preferenceScreen.findPreference(KEY_ALERTS_VIBRATE_WHEN);
108        mRingtone = (RingtonePreference) preferenceScreen.findPreference(KEY_ALERTS_RINGTONE);
109        mUseHomeTZ = (CheckBoxPreference) preferenceScreen.findPreference(KEY_HOME_TZ_ENABLED);
110        mUseHomeTZ.setOnPreferenceChangeListener(this);
111        mHomeTZ = (ListPreference) preferenceScreen.findPreference(KEY_HOME_TZ);
112        String tz = mHomeTZ.getValue();
113
114        if (mTimezones == null) {
115            mTimezones = (new TimezoneAdapter(this, tz)).getAllTimezones();
116        }
117        mHomeTZ.setEntryValues(mTimezones[0]);
118        mHomeTZ.setEntries(mTimezones[1]);
119        CharSequence tzName = mHomeTZ.getEntry();
120        if (!TextUtils.isEmpty(tzName)) {
121            mHomeTZ.setSummary(tzName);
122        } else {
123            mHomeTZ.setSummary(Utils.getTimeZone(this, mTZUpdater));
124        }
125        mHomeTZ.setOnPreferenceChangeListener(this);
126
127        // If needed, migrate vibration setting from a previous version
128        if (!sharedPreferences.contains(KEY_ALERTS_VIBRATE_WHEN) &&
129                sharedPreferences.contains(KEY_ALERTS_VIBRATE)) {
130            int stringId = sharedPreferences.getBoolean(KEY_ALERTS_VIBRATE, false) ?
131                    R.string.prefDefault_alerts_vibrate_true :
132                    R.string.prefDefault_alerts_vibrate_false;
133            mVibrateWhen.setValue(getString(stringId));
134        }
135
136        try {
137            PackageInfo packageInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
138            findPreference(BUILD_VERSION).setSummary(packageInfo.versionName);
139        } catch (NameNotFoundException e) {
140            findPreference(BUILD_VERSION).setSummary("?");
141        }
142        updateChildPreferences();
143    }
144
145    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
146        if (key.equals(KEY_ALERTS_TYPE)) {
147            updateChildPreferences();
148        }
149    }
150
151    private void updateChildPreferences() {
152        if (mAlertType.getValue().equals(ALERT_TYPE_OFF)) {
153            mVibrateWhen.setValue(getString(R.string.prefDefault_alerts_vibrate_false));
154            mVibrateWhen.setEnabled(false);
155            mRingtone.setEnabled(false);
156        } else {
157            mVibrateWhen.setEnabled(true);
158            mRingtone.setEnabled(true);
159        }
160    }
161
162    /**
163     * Handles time zone preference changes
164     */
165    @Override
166    public boolean onPreferenceChange(Preference preference, Object newValue) {
167        String tz;
168        if (preference == mUseHomeTZ) {
169            if ((Boolean)newValue) {
170                tz = mHomeTZ.getValue();
171            } else {
172                tz = CalendarCache.TIMEZONE_TYPE_AUTO;
173            }
174        } else if (preference == mHomeTZ) {
175            tz = (String)newValue;
176            mHomeTZ.setValue(tz);
177            mHomeTZ.setSummary(mHomeTZ.getEntry());
178        } else {
179            return false;
180        }
181        Utils.setTimeZone(this, tz);
182        return true;
183    }
184}
185