1/*
2 * Copyright (C) 2014 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.settings.notification;
18
19import static com.android.settings.notification.ZenModeDowntimeDaysSelection.DAYS;
20
21import android.app.AlertDialog;
22import android.app.Dialog;
23import android.app.DialogFragment;
24import android.app.FragmentManager;
25import android.app.INotificationManager;
26import android.app.TimePickerDialog;
27import android.content.Context;
28import android.content.DialogInterface;
29import android.content.DialogInterface.OnDismissListener;
30import android.content.pm.PackageManager;
31import android.content.res.Resources;
32import android.database.ContentObserver;
33import android.net.Uri;
34import android.os.Bundle;
35import android.os.Handler;
36import android.os.ServiceManager;
37import android.preference.Preference;
38import android.preference.Preference.OnPreferenceChangeListener;
39import android.preference.Preference.OnPreferenceClickListener;
40import android.preference.PreferenceCategory;
41import android.preference.PreferenceScreen;
42import android.preference.SwitchPreference;
43import android.provider.Settings.Global;
44import android.service.notification.Condition;
45import android.service.notification.ZenModeConfig;
46import android.text.format.DateFormat;
47import android.util.Log;
48import android.util.SparseArray;
49import android.widget.ScrollView;
50import android.widget.TimePicker;
51
52import com.android.settings.R;
53import com.android.settings.SettingsPreferenceFragment;
54import com.android.settings.Utils;
55import com.android.settings.notification.DropDownPreference.Callback;
56import com.android.settings.search.BaseSearchIndexProvider;
57import com.android.settings.search.Indexable;
58import com.android.settings.search.SearchIndexableRaw;
59
60import java.text.SimpleDateFormat;
61import java.util.ArrayList;
62import java.util.Calendar;
63import java.util.List;
64import java.util.Objects;
65
66public class ZenModeSettings extends SettingsPreferenceFragment implements Indexable {
67    private static final String TAG = "ZenModeSettings";
68    private static final boolean DEBUG = true;
69
70    private static final String KEY_ZEN_MODE = "zen_mode";
71    private static final String KEY_IMPORTANT = "important";
72    private static final String KEY_CALLS = "phone_calls";
73    private static final String KEY_MESSAGES = "messages";
74    private static final String KEY_STARRED = "starred";
75    private static final String KEY_EVENTS = "events";
76    private static final String KEY_ALARM_INFO = "alarm_info";
77
78    private static final String KEY_DOWNTIME = "downtime";
79    private static final String KEY_DAYS = "days";
80    private static final String KEY_START_TIME = "start_time";
81    private static final String KEY_END_TIME = "end_time";
82
83    private static final String KEY_AUTOMATION = "automation";
84    private static final String KEY_ENTRY = "entry";
85    private static final String KEY_CONDITION_PROVIDERS = "manage_condition_providers";
86
87    private static final SettingPrefWithCallback PREF_ZEN_MODE = new SettingPrefWithCallback(
88            SettingPref.TYPE_GLOBAL, KEY_ZEN_MODE, Global.ZEN_MODE, Global.ZEN_MODE_OFF,
89            Global.ZEN_MODE_OFF, Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS,
90            Global.ZEN_MODE_NO_INTERRUPTIONS) {
91        protected String getCaption(Resources res, int value) {
92            switch (value) {
93                case Global.ZEN_MODE_NO_INTERRUPTIONS:
94                    return res.getString(R.string.zen_mode_option_no_interruptions);
95                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
96                    return res.getString(R.string.zen_mode_option_important_interruptions);
97                default:
98                    return res.getString(R.string.zen_mode_option_off);
99            }
100        }
101    };
102
103    private static final SimpleDateFormat DAY_FORMAT = new SimpleDateFormat("EEE");
104
105    private static SparseArray<String> allKeyTitles(Context context) {
106        final SparseArray<String> rt = new SparseArray<String>();
107        rt.put(R.string.zen_mode_important_category, KEY_IMPORTANT);
108        if (Utils.isVoiceCapable(context)) {
109            rt.put(R.string.zen_mode_phone_calls, KEY_CALLS);
110            rt.put(R.string.zen_mode_option_title, KEY_ZEN_MODE);
111        } else {
112            rt.put(R.string.zen_mode_option_title_novoice, KEY_ZEN_MODE);
113        }
114        rt.put(R.string.zen_mode_messages, KEY_MESSAGES);
115        rt.put(R.string.zen_mode_from_starred, KEY_STARRED);
116        rt.put(R.string.zen_mode_events, KEY_EVENTS);
117        rt.put(R.string.zen_mode_alarm_info, KEY_ALARM_INFO);
118        rt.put(R.string.zen_mode_downtime_category, KEY_DOWNTIME);
119        rt.put(R.string.zen_mode_downtime_days, KEY_DAYS);
120        rt.put(R.string.zen_mode_start_time, KEY_START_TIME);
121        rt.put(R.string.zen_mode_end_time, KEY_END_TIME);
122        rt.put(R.string.zen_mode_automation_category, KEY_AUTOMATION);
123        rt.put(R.string.manage_condition_providers, KEY_CONDITION_PROVIDERS);
124        return rt;
125    }
126
127    private final Handler mHandler = new Handler();
128    private final SettingsObserver mSettingsObserver = new SettingsObserver();
129
130    private Context mContext;
131    private PackageManager mPM;
132    private ZenModeConfig mConfig;
133    private boolean mDisableListeners;
134    private SwitchPreference mCalls;
135    private SwitchPreference mMessages;
136    private DropDownPreference mStarred;
137    private SwitchPreference mEvents;
138    private Preference mDays;
139    private TimePickerPreference mStart;
140    private TimePickerPreference mEnd;
141    private PreferenceCategory mAutomationCategory;
142    private Preference mEntry;
143    private Preference mConditionProviders;
144    private AlertDialog mDialog;
145
146    @Override
147    public void onCreate(Bundle savedInstanceState) {
148        super.onCreate(savedInstanceState);
149        mContext = getActivity();
150        mPM = mContext.getPackageManager();
151
152        addPreferencesFromResource(R.xml.zen_mode_settings);
153        final PreferenceScreen root = getPreferenceScreen();
154
155        mConfig = getZenModeConfig();
156        if (DEBUG) Log.d(TAG, "Loaded mConfig=" + mConfig);
157
158        final Preference zenMode = PREF_ZEN_MODE.init(this);
159        PREF_ZEN_MODE.setCallback(new SettingPrefWithCallback.Callback() {
160            @Override
161            public void onSettingSelected(int value) {
162                if (value != Global.ZEN_MODE_OFF) {
163                    showConditionSelection(value);
164                }
165            }
166        });
167        if (!Utils.isVoiceCapable(mContext)) {
168            zenMode.setTitle(R.string.zen_mode_option_title_novoice);
169        }
170
171        final PreferenceCategory important =
172                (PreferenceCategory) root.findPreference(KEY_IMPORTANT);
173
174        mCalls = (SwitchPreference) important.findPreference(KEY_CALLS);
175        if (Utils.isVoiceCapable(mContext)) {
176            mCalls.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
177                @Override
178                public boolean onPreferenceChange(Preference preference, Object newValue) {
179                    if (mDisableListeners) return true;
180                    final boolean val = (Boolean) newValue;
181                    if (val == mConfig.allowCalls) return true;
182                    if (DEBUG) Log.d(TAG, "onPrefChange allowCalls=" + val);
183                    final ZenModeConfig newConfig = mConfig.copy();
184                    newConfig.allowCalls = val;
185                    return setZenModeConfig(newConfig);
186                }
187            });
188        } else {
189            important.removePreference(mCalls);
190            mCalls = null;
191        }
192
193        mMessages = (SwitchPreference) important.findPreference(KEY_MESSAGES);
194        mMessages.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
195            @Override
196            public boolean onPreferenceChange(Preference preference, Object newValue) {
197                if (mDisableListeners) return true;
198                final boolean val = (Boolean) newValue;
199                if (val == mConfig.allowMessages) return true;
200                if (DEBUG) Log.d(TAG, "onPrefChange allowMessages=" + val);
201                final ZenModeConfig newConfig = mConfig.copy();
202                newConfig.allowMessages = val;
203                return setZenModeConfig(newConfig);
204            }
205        });
206
207        mStarred = (DropDownPreference) important.findPreference(KEY_STARRED);
208        mStarred.addItem(R.string.zen_mode_from_anyone, ZenModeConfig.SOURCE_ANYONE);
209        mStarred.addItem(R.string.zen_mode_from_starred, ZenModeConfig.SOURCE_STAR);
210        mStarred.addItem(R.string.zen_mode_from_contacts, ZenModeConfig.SOURCE_CONTACT);
211        mStarred.setCallback(new DropDownPreference.Callback() {
212            @Override
213            public boolean onItemSelected(int pos, Object newValue) {
214                if (mDisableListeners) return true;
215                final int val = (Integer) newValue;
216                if (val == mConfig.allowFrom) return true;
217                if (DEBUG) Log.d(TAG, "onPrefChange allowFrom=" +
218                        ZenModeConfig.sourceToString(val));
219                final ZenModeConfig newConfig = mConfig.copy();
220                newConfig.allowFrom = val;
221                return setZenModeConfig(newConfig);
222            }
223        });
224        important.addPreference(mStarred);
225
226        mEvents = (SwitchPreference) important.findPreference(KEY_EVENTS);
227        mEvents.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
228            @Override
229            public boolean onPreferenceChange(Preference preference, Object newValue) {
230                if (mDisableListeners) return true;
231                final boolean val = (Boolean) newValue;
232                if (val == mConfig.allowEvents) return true;
233                if (DEBUG) Log.d(TAG, "onPrefChange allowEvents=" + val);
234                final ZenModeConfig newConfig = mConfig.copy();
235                newConfig.allowEvents = val;
236                return setZenModeConfig(newConfig);
237            }
238        });
239
240        final PreferenceCategory downtime = (PreferenceCategory) root.findPreference(KEY_DOWNTIME);
241
242        mDays = downtime.findPreference(KEY_DAYS);
243        mDays.setOnPreferenceClickListener(new OnPreferenceClickListener() {
244            @Override
245            public boolean onPreferenceClick(Preference preference) {
246                new AlertDialog.Builder(mContext)
247                        .setTitle(R.string.zen_mode_downtime_days)
248                        .setView(new ZenModeDowntimeDaysSelection(mContext, mConfig.sleepMode) {
249                              @Override
250                              protected void onChanged(String mode) {
251                                  if (mDisableListeners) return;
252                                  if (Objects.equals(mode, mConfig.sleepMode)) return;
253                                  if (DEBUG) Log.d(TAG, "days.onChanged sleepMode=" + mode);
254                                  final ZenModeConfig newConfig = mConfig.copy();
255                                  newConfig.sleepMode = mode;
256                                  setZenModeConfig(newConfig);
257                              }
258                        })
259                        .setOnDismissListener(new OnDismissListener() {
260                            @Override
261                            public void onDismiss(DialogInterface dialog) {
262                                updateDays();
263                            }
264                        })
265                        .setPositiveButton(R.string.done_button, null)
266                        .show();
267                return true;
268            }
269        });
270
271        final FragmentManager mgr = getFragmentManager();
272
273        mStart = new TimePickerPreference(mContext, mgr);
274        mStart.setKey(KEY_START_TIME);
275        mStart.setTitle(R.string.zen_mode_start_time);
276        mStart.setCallback(new TimePickerPreference.Callback() {
277            @Override
278            public boolean onSetTime(int hour, int minute) {
279                if (mDisableListeners) return true;
280                if (!ZenModeConfig.isValidHour(hour)) return false;
281                if (!ZenModeConfig.isValidMinute(minute)) return false;
282                if (hour == mConfig.sleepStartHour && minute == mConfig.sleepStartMinute) {
283                    return true;
284                }
285                if (DEBUG) Log.d(TAG, "onPrefChange sleepStart h=" + hour + " m=" + minute);
286                final ZenModeConfig newConfig = mConfig.copy();
287                newConfig.sleepStartHour = hour;
288                newConfig.sleepStartMinute = minute;
289                return setZenModeConfig(newConfig);
290            }
291        });
292        downtime.addPreference(mStart);
293        mStart.setDependency(mDays.getKey());
294
295        mEnd = new TimePickerPreference(mContext, mgr);
296        mEnd.setKey(KEY_END_TIME);
297        mEnd.setTitle(R.string.zen_mode_end_time);
298        mEnd.setCallback(new TimePickerPreference.Callback() {
299            @Override
300            public boolean onSetTime(int hour, int minute) {
301                if (mDisableListeners) return true;
302                if (!ZenModeConfig.isValidHour(hour)) return false;
303                if (!ZenModeConfig.isValidMinute(minute)) return false;
304                if (hour == mConfig.sleepEndHour && minute == mConfig.sleepEndMinute) {
305                    return true;
306                }
307                if (DEBUG) Log.d(TAG, "onPrefChange sleepEnd h=" + hour + " m=" + minute);
308                final ZenModeConfig newConfig = mConfig.copy();
309                newConfig.sleepEndHour = hour;
310                newConfig.sleepEndMinute = minute;
311                return setZenModeConfig(newConfig);
312            }
313        });
314        downtime.addPreference(mEnd);
315        mEnd.setDependency(mDays.getKey());
316
317        mAutomationCategory = (PreferenceCategory) findPreference(KEY_AUTOMATION);
318        mEntry = findPreference(KEY_ENTRY);
319        mEntry.setOnPreferenceClickListener(new OnPreferenceClickListener() {
320            @Override
321            public boolean onPreferenceClick(Preference preference) {
322                new AlertDialog.Builder(mContext)
323                    .setTitle(R.string.zen_mode_entry_conditions_title)
324                    .setView(new ZenModeAutomaticConditionSelection(mContext))
325                    .setOnDismissListener(new OnDismissListener() {
326                        @Override
327                        public void onDismiss(DialogInterface dialog) {
328                            refreshAutomationSection();
329                        }
330                    })
331                    .setPositiveButton(R.string.dlg_ok, null)
332                    .show();
333                return true;
334            }
335        });
336        mConditionProviders = findPreference(KEY_CONDITION_PROVIDERS);
337
338        updateControls();
339    }
340
341    private void updateDays() {
342        if (mConfig != null) {
343            final int[] days = ZenModeConfig.tryParseDays(mConfig.sleepMode);
344            if (days != null && days.length != 0) {
345                final StringBuilder sb = new StringBuilder();
346                final Calendar c = Calendar.getInstance();
347                for (int i = 0; i < DAYS.length; i++) {
348                    final int day = DAYS[i];
349                    for (int j = 0; j < days.length; j++) {
350                        if (day == days[j]) {
351                            c.set(Calendar.DAY_OF_WEEK, day);
352                            if (sb.length() > 0) {
353                                sb.append(mContext.getString(R.string.summary_divider_text));
354                            }
355                            sb.append(DAY_FORMAT.format(c.getTime()));
356                            break;
357                        }
358                    }
359                }
360                if (sb.length() > 0) {
361                    mDays.setSummary(sb);
362                    mDays.notifyDependencyChange(false);
363                    return;
364                }
365            }
366        }
367        mDays.setSummary(R.string.zen_mode_downtime_days_none);
368        mDays.notifyDependencyChange(true);
369    }
370
371    private void updateEndSummary() {
372        final int startMin = 60 * mConfig.sleepStartHour + mConfig.sleepStartMinute;
373        final int endMin = 60 * mConfig.sleepEndHour + mConfig.sleepEndMinute;
374        final boolean nextDay = startMin >= endMin;
375        mEnd.setSummaryFormat(nextDay ? R.string.zen_mode_end_time_summary_format : 0);
376    }
377
378    private void updateControls() {
379        mDisableListeners = true;
380        if (mCalls != null) {
381            mCalls.setChecked(mConfig.allowCalls);
382        }
383        mMessages.setChecked(mConfig.allowMessages);
384        mStarred.setSelectedValue(mConfig.allowFrom);
385        mEvents.setChecked(mConfig.allowEvents);
386        updateStarredEnabled();
387        updateDays();
388        mStart.setTime(mConfig.sleepStartHour, mConfig.sleepStartMinute);
389        mEnd.setTime(mConfig.sleepEndHour, mConfig.sleepEndMinute);
390        mDisableListeners = false;
391        refreshAutomationSection();
392        updateEndSummary();
393    }
394
395    private void updateStarredEnabled() {
396        mStarred.setEnabled(mConfig.allowCalls || mConfig.allowMessages);
397    }
398
399    private void refreshAutomationSection() {
400        if (mConditionProviders != null) {
401            final int total = ConditionProviderSettings.getProviderCount(mPM);
402            if (total == 0) {
403                getPreferenceScreen().removePreference(mAutomationCategory);
404            } else {
405                final int n = ConditionProviderSettings.getEnabledProviderCount(mContext);
406                if (n == 0) {
407                    mConditionProviders.setSummary(getResources().getString(
408                            R.string.manage_condition_providers_summary_zero));
409                } else {
410                    mConditionProviders.setSummary(String.format(getResources().getQuantityString(
411                            R.plurals.manage_condition_providers_summary_nonzero,
412                            n, n)));
413                }
414                final String entrySummary = getEntryConditionSummary();
415                if (n == 0 || entrySummary == null) {
416                    mEntry.setSummary(R.string.zen_mode_entry_conditions_summary_none);
417                } else {
418                    mEntry.setSummary(entrySummary);
419                }
420            }
421        }
422    }
423
424    private String getEntryConditionSummary() {
425        final INotificationManager nm = INotificationManager.Stub.asInterface(
426                ServiceManager.getService(Context.NOTIFICATION_SERVICE));
427        try {
428            final Condition[] automatic = nm.getAutomaticZenModeConditions();
429            if (automatic == null || automatic.length == 0) {
430                return null;
431            }
432            final String divider = getString(R.string.summary_divider_text);
433            final StringBuilder sb = new StringBuilder();
434            for (int i = 0; i < automatic.length; i++) {
435                if (i > 0) sb.append(divider);
436                sb.append(automatic[i].summary);
437            }
438            return sb.toString();
439        } catch (Exception e) {
440            Log.w(TAG, "Error calling getAutomaticZenModeConditions", e);
441            return null;
442        }
443    }
444
445    @Override
446    public void onResume() {
447        super.onResume();
448        updateControls();
449        mSettingsObserver.register();
450    }
451
452    @Override
453    public void onPause() {
454        super.onPause();
455        mSettingsObserver.unregister();
456    }
457
458    private void updateZenModeConfig() {
459        final ZenModeConfig config = getZenModeConfig();
460        if (Objects.equals(config, mConfig)) return;
461        mConfig = config;
462        if (DEBUG) Log.d(TAG, "updateZenModeConfig mConfig=" + mConfig);
463        updateControls();
464    }
465
466    private ZenModeConfig getZenModeConfig() {
467        final INotificationManager nm = INotificationManager.Stub.asInterface(
468                ServiceManager.getService(Context.NOTIFICATION_SERVICE));
469        try {
470            return nm.getZenModeConfig();
471        } catch (Exception e) {
472           Log.w(TAG, "Error calling NoMan", e);
473           return new ZenModeConfig();
474        }
475    }
476
477    private boolean setZenModeConfig(ZenModeConfig config) {
478        final INotificationManager nm = INotificationManager.Stub.asInterface(
479                ServiceManager.getService(Context.NOTIFICATION_SERVICE));
480        try {
481            final boolean success = nm.setZenModeConfig(config);
482            if (success) {
483                mConfig = config;
484                if (DEBUG) Log.d(TAG, "Saved mConfig=" + mConfig);
485                updateEndSummary();
486                updateStarredEnabled();
487            }
488            return success;
489        } catch (Exception e) {
490           Log.w(TAG, "Error calling NoMan", e);
491           return false;
492        }
493    }
494
495    protected void putZenModeSetting(int value) {
496        Global.putInt(getContentResolver(), Global.ZEN_MODE, value);
497    }
498
499    protected void showConditionSelection(final int newSettingsValue) {
500        if (mDialog != null) return;
501
502        final ZenModeConditionSelection zenModeConditionSelection =
503                new ZenModeConditionSelection(mContext);
504        DialogInterface.OnClickListener positiveListener = new DialogInterface.OnClickListener() {
505            @Override
506            public void onClick(DialogInterface dialog, int which) {
507                zenModeConditionSelection.confirmCondition();
508                mDialog = null;
509            }
510        };
511        final int oldSettingsValue = PREF_ZEN_MODE.getValue(mContext);
512        ScrollView scrollView = new ScrollView(mContext);
513        scrollView.addView(zenModeConditionSelection);
514        mDialog = new AlertDialog.Builder(getActivity())
515                .setTitle(PREF_ZEN_MODE.getCaption(getResources(), newSettingsValue))
516                .setView(scrollView)
517                .setPositiveButton(R.string.okay, positiveListener)
518                .setNegativeButton(R.string.cancel_all_caps, new DialogInterface.OnClickListener() {
519                    @Override
520                    public void onClick(DialogInterface dialog, int which) {
521                        cancelDialog(oldSettingsValue);
522                    }
523                })
524                .setOnCancelListener(new DialogInterface.OnCancelListener() {
525                    @Override
526                    public void onCancel(DialogInterface dialog) {
527                        cancelDialog(oldSettingsValue);
528                    }
529                }).create();
530        mDialog.show();
531    }
532
533    protected void cancelDialog(int oldSettingsValue) {
534        // If not making a decision, reset drop down to current setting.
535        PREF_ZEN_MODE.setValueWithoutCallback(mContext, oldSettingsValue);
536        mDialog = null;
537    }
538
539    // Enable indexing of searchable data
540    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
541        new BaseSearchIndexProvider() {
542            @Override
543            public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
544                final SparseArray<String> keyTitles = allKeyTitles(context);
545                final int N = keyTitles.size();
546                final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>(N);
547                final Resources res = context.getResources();
548                for (int i = 0; i < N; i++) {
549                    final SearchIndexableRaw data = new SearchIndexableRaw(context);
550                    data.key = keyTitles.valueAt(i);
551                    data.title = res.getString(keyTitles.keyAt(i));
552                    data.screenTitle = res.getString(R.string.zen_mode_settings_title);
553                    result.add(data);
554                }
555                return result;
556            }
557
558            public List<String> getNonIndexableKeys(Context context) {
559                final ArrayList<String> rt = new ArrayList<String>();
560                if (!Utils.isVoiceCapable(context)) {
561                    rt.add(KEY_CALLS);
562                }
563                return rt;
564            }
565        };
566
567    private static class SettingPrefWithCallback extends SettingPref {
568
569        private Callback mCallback;
570        private int mValue;
571
572        public SettingPrefWithCallback(int type, String key, String setting, int def,
573                int... values) {
574            super(type, key, setting, def, values);
575        }
576
577        public void setCallback(Callback callback) {
578            mCallback = callback;
579        }
580
581        @Override
582        public void update(Context context) {
583            // Avoid callbacks from non-user changes.
584            mValue = getValue(context);
585            super.update(context);
586        }
587
588        @Override
589        protected boolean setSetting(Context context, int value) {
590            if (value == mValue) return true;
591            mValue = value;
592            if (mCallback != null) {
593                mCallback.onSettingSelected(value);
594            }
595            return super.setSetting(context, value);
596        }
597
598        @Override
599        public Preference init(SettingsPreferenceFragment settings) {
600            Preference ret = super.init(settings);
601            mValue = getValue(settings.getActivity());
602
603            return ret;
604        }
605
606        public boolean setValueWithoutCallback(Context context, int value) {
607            // Set the current value ahead of time, this way we won't trigger a callback.
608            mValue = value;
609            return putInt(mType, context.getContentResolver(), mSetting, value);
610        }
611
612        public int getValue(Context context) {
613            return getInt(mType, context.getContentResolver(), mSetting, mDefault);
614        }
615
616        public interface Callback {
617            void onSettingSelected(int value);
618        }
619    }
620
621    private final class SettingsObserver extends ContentObserver {
622        private final Uri ZEN_MODE_URI = Global.getUriFor(Global.ZEN_MODE);
623        private final Uri ZEN_MODE_CONFIG_ETAG_URI = Global.getUriFor(Global.ZEN_MODE_CONFIG_ETAG);
624
625        public SettingsObserver() {
626            super(mHandler);
627        }
628
629        public void register() {
630            getContentResolver().registerContentObserver(ZEN_MODE_URI, false, this);
631            getContentResolver().registerContentObserver(ZEN_MODE_CONFIG_ETAG_URI, false, this);
632        }
633
634        public void unregister() {
635            getContentResolver().unregisterContentObserver(this);
636        }
637
638        @Override
639        public void onChange(boolean selfChange, Uri uri) {
640            super.onChange(selfChange, uri);
641            if (ZEN_MODE_URI.equals(uri)) {
642                PREF_ZEN_MODE.update(mContext);
643            }
644            if (ZEN_MODE_CONFIG_ETAG_URI.equals(uri)) {
645                updateZenModeConfig();
646            }
647        }
648    }
649
650    private static class TimePickerPreference extends Preference {
651        private final Context mContext;
652
653        private int mSummaryFormat;
654        private int mHourOfDay;
655        private int mMinute;
656        private Callback mCallback;
657
658        public TimePickerPreference(Context context, final FragmentManager mgr) {
659            super(context);
660            mContext = context;
661            setPersistent(false);
662            setOnPreferenceClickListener(new OnPreferenceClickListener(){
663                @Override
664                public boolean onPreferenceClick(Preference preference) {
665                    final TimePickerFragment frag = new TimePickerFragment();
666                    frag.pref = TimePickerPreference.this;
667                    frag.show(mgr, TimePickerPreference.class.getName());
668                    return true;
669                }
670            });
671        }
672
673        public void setCallback(Callback callback) {
674            mCallback = callback;
675        }
676
677        public void setSummaryFormat(int resId) {
678            mSummaryFormat = resId;
679            updateSummary();
680        }
681
682        public void setTime(int hourOfDay, int minute) {
683            if (mCallback != null && !mCallback.onSetTime(hourOfDay, minute)) return;
684            mHourOfDay = hourOfDay;
685            mMinute = minute;
686            updateSummary();
687        }
688
689        private void updateSummary() {
690            final Calendar c = Calendar.getInstance();
691            c.set(Calendar.HOUR_OF_DAY, mHourOfDay);
692            c.set(Calendar.MINUTE, mMinute);
693            String time = DateFormat.getTimeFormat(mContext).format(c.getTime());
694            if (mSummaryFormat != 0) {
695                time = mContext.getResources().getString(mSummaryFormat, time);
696            }
697            setSummary(time);
698        }
699
700        public static class TimePickerFragment extends DialogFragment implements
701                TimePickerDialog.OnTimeSetListener {
702            public TimePickerPreference pref;
703
704            @Override
705            public Dialog onCreateDialog(Bundle savedInstanceState) {
706                final boolean usePref = pref != null && pref.mHourOfDay >= 0 && pref.mMinute >= 0;
707                final Calendar c = Calendar.getInstance();
708                final int hour = usePref ? pref.mHourOfDay : c.get(Calendar.HOUR_OF_DAY);
709                final int minute = usePref ? pref.mMinute : c.get(Calendar.MINUTE);
710                return new TimePickerDialog(getActivity(), this, hour, minute,
711                        DateFormat.is24HourFormat(getActivity()));
712            }
713
714            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
715                if (pref != null) {
716                    pref.setTime(hourOfDay, minute);
717                }
718            }
719        }
720
721        public interface Callback {
722            boolean onSetTime(int hour, int minute);
723        }
724    }
725}
726