1 /* 2 * Copyright (C) 2015 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 17 package com.android.deskclock.alarms; 18 19 import android.content.ContentResolver; 20 import android.content.Context; 21 import android.os.AsyncTask; 22 import android.support.design.widget.Snackbar; 23 import android.text.format.DateFormat; 24 import android.view.View; 25 import android.view.ViewGroup; 26 27 import com.android.deskclock.AlarmUtils; 28 import com.android.deskclock.R; 29 import com.android.deskclock.events.Events; 30 import com.android.deskclock.provider.Alarm; 31 import com.android.deskclock.provider.AlarmInstance; 32 import com.android.deskclock.widget.toast.SnackbarManager; 33 34 import java.util.Calendar; 35 import java.util.List; 36 37 /** 38 * API for asynchronously mutating a single alarm. 39 */ 40 public final class AlarmUpdateHandler { 41 42 private final Context mAppContext; 43 private final ScrollHandler mScrollHandler; 44 private final View mSnackbarAnchor; 45 46 // For undo 47 private Alarm mDeletedAlarm; 48 49 public AlarmUpdateHandler(Context context, ScrollHandler scrollHandler, 50 ViewGroup snackbarAnchor) { 51 mAppContext = context.getApplicationContext(); 52 mScrollHandler = scrollHandler; 53 mSnackbarAnchor = snackbarAnchor; 54 } 55 56 /** 57 * Adds a new alarm on the background. 58 * 59 * @param alarm The alarm to be added. 60 */ 61 public void asyncAddAlarm(final Alarm alarm) { 62 final AsyncTask<Void, Void, AlarmInstance> updateTask = 63 new AsyncTask<Void, Void, AlarmInstance>() { 64 @Override 65 protected AlarmInstance doInBackground(Void... parameters) { 66 if (alarm != null) { 67 Events.sendAlarmEvent(R.string.action_create, R.string.label_deskclock); 68 ContentResolver cr = mAppContext.getContentResolver(); 69 70 // Add alarm to db 71 Alarm newAlarm = Alarm.addAlarm(cr, alarm); 72 73 // Be ready to scroll to this alarm on UI later. 74 mScrollHandler.setSmoothScrollStableId(newAlarm.id); 75 76 // Create and add instance to db 77 if (newAlarm.enabled) { 78 return setupAlarmInstance(newAlarm); 79 } 80 } 81 return null; 82 } 83 84 @Override 85 protected void onPostExecute(AlarmInstance instance) { 86 if (instance != null) { 87 AlarmUtils.popAlarmSetSnackbar( 88 mSnackbarAnchor, instance.getAlarmTime().getTimeInMillis()); 89 } 90 } 91 }; 92 updateTask.execute(); 93 } 94 95 /** 96 * Modifies an alarm on the background, and optionally show a toast when done. 97 * 98 * @param alarm The alarm to be modified. 99 * @param popToast whether or not a toast should be displayed when done. 100 * @param minorUpdate if true, don't affect any currently snoozed instances. 101 */ 102 public void asyncUpdateAlarm(final Alarm alarm, final boolean popToast, 103 final boolean minorUpdate) { 104 final AsyncTask<Void, Void, AlarmInstance> updateTask = 105 new AsyncTask<Void, Void, AlarmInstance>() { 106 @Override 107 protected AlarmInstance doInBackground(Void... parameters) { 108 ContentResolver cr = mAppContext.getContentResolver(); 109 110 // Update alarm 111 Alarm.updateAlarm(cr, alarm); 112 113 if (minorUpdate) { 114 // just update the instance in the database and update notifications. 115 final List<AlarmInstance> instanceList = 116 AlarmInstance.getInstancesByAlarmId(cr, alarm.id); 117 for (AlarmInstance instance : instanceList) { 118 // Make a copy of the existing instance 119 final AlarmInstance newInstance = new AlarmInstance(instance); 120 // Copy over minor change data to the instance; we don't know 121 // exactly which minor field changed, so just copy them all. 122 newInstance.mVibrate = alarm.vibrate; 123 newInstance.mRingtone = alarm.alert; 124 newInstance.mLabel = alarm.label; 125 // Since we copied the mId of the old instance and the mId is used 126 // as the primary key in the AlarmInstance table, this will replace 127 // the existing instance. 128 AlarmInstance.updateInstance(cr, newInstance); 129 // Update the notification for this instance. 130 AlarmNotifications.updateNotification(mAppContext, newInstance); 131 } 132 return null; 133 } 134 // Otherwise, this is a major update and we're going to re-create the alarm 135 AlarmStateManager.deleteAllInstances(mAppContext, alarm.id); 136 137 return alarm.enabled ? setupAlarmInstance(alarm) : null; 138 } 139 140 @Override 141 protected void onPostExecute(AlarmInstance instance) { 142 if (popToast && instance != null) { 143 AlarmUtils.popAlarmSetSnackbar( 144 mSnackbarAnchor, instance.getAlarmTime().getTimeInMillis()); 145 } 146 } 147 }; 148 updateTask.execute(); 149 } 150 151 /** 152 * Deletes an alarm on the background. 153 * 154 * @param alarm The alarm to be deleted. 155 */ 156 public void asyncDeleteAlarm(final Alarm alarm) { 157 final AsyncTask<Void, Void, Boolean> deleteTask = new AsyncTask<Void, Void, Boolean>() { 158 @Override 159 protected Boolean doInBackground(Void... parameters) { 160 // Activity may be closed at this point , make sure data is still valid 161 if (alarm == null) { 162 // Nothing to do here, just return. 163 return false; 164 } 165 AlarmStateManager.deleteAllInstances(mAppContext, alarm.id); 166 return Alarm.deleteAlarm(mAppContext.getContentResolver(), alarm.id); 167 } 168 169 @Override 170 protected void onPostExecute(Boolean deleted) { 171 if (deleted) { 172 mDeletedAlarm = alarm; 173 showUndoBar(); 174 } 175 } 176 }; 177 deleteTask.execute(); 178 } 179 180 /** 181 * Show a toast when an alarm is predismissed. 182 * 183 * @param instance Instance being predismissed. 184 */ 185 public void showPredismissToast(AlarmInstance instance) { 186 final String time = DateFormat.getTimeFormat(mAppContext).format( 187 instance.getAlarmTime().getTime()); 188 final String text = mAppContext.getString(R.string.alarm_is_dismissed, time); 189 SnackbarManager.show(Snackbar.make(mSnackbarAnchor, text, Snackbar.LENGTH_SHORT)); 190 } 191 192 /** 193 * Hides any undo toast. 194 */ 195 public void hideUndoBar() { 196 mDeletedAlarm = null; 197 SnackbarManager.dismiss(); 198 } 199 200 private void showUndoBar() { 201 final Alarm deletedAlarm = mDeletedAlarm; 202 final Snackbar snackbar = Snackbar.make(mSnackbarAnchor, 203 mAppContext.getString(R.string.alarm_deleted), Snackbar.LENGTH_LONG) 204 .setAction(R.string.alarm_undo, new View.OnClickListener() { 205 @Override 206 public void onClick(View v) { 207 mDeletedAlarm = null; 208 asyncAddAlarm(deletedAlarm); 209 } 210 }); 211 SnackbarManager.show(snackbar); 212 } 213 214 private AlarmInstance setupAlarmInstance(Alarm alarm) { 215 final ContentResolver cr = mAppContext.getContentResolver(); 216 AlarmInstance newInstance = alarm.createInstanceAfter(Calendar.getInstance()); 217 newInstance = AlarmInstance.addInstance(cr, newInstance); 218 // Register instance to state manager 219 AlarmStateManager.registerInstance(mAppContext, newInstance, true); 220 return newInstance; 221 } 222 } 223
