761 lines
33 KiB
Java
761 lines
33 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email;
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import com.android.email.activity.ContactStatusLoader;
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import com.android.email.activity.Welcome;
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import com.android.email.activity.setup.AccountSecurity;
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import com.android.email.activity.setup.AccountSettings;
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import com.android.emailcommon.Logging;
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import com.android.emailcommon.mail.Address;
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import com.android.emailcommon.provider.Account;
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import com.android.emailcommon.provider.EmailContent;
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import com.android.emailcommon.provider.EmailContent.Attachment;
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import com.android.emailcommon.provider.EmailContent.MailboxColumns;
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import com.android.emailcommon.provider.EmailContent.Message;
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import com.android.emailcommon.provider.EmailContent.MessageColumns;
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import com.android.emailcommon.provider.Mailbox;
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import com.android.emailcommon.utility.Utility;
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import com.google.common.annotations.VisibleForTesting;
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import android.app.Notification;
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import android.app.Notification.Builder;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.database.ContentObserver;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.media.AudioManager;
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import android.net.Uri;
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import android.os.Handler;
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import android.os.Looper;
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import android.os.Process;
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import android.text.SpannableString;
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import android.text.TextUtils;
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import android.text.style.TextAppearanceSpan;
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import android.util.Log;
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import java.util.HashMap;
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import java.util.HashSet;
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/**
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* Class that manages notifications.
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*/
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public class NotificationController {
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private static final int NOTIFICATION_ID_SECURITY_NEEDED = 1;
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/** Reserved for {@link com.android.exchange.CalendarSyncEnabler} */
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@SuppressWarnings("unused")
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private static final int NOTIFICATION_ID_EXCHANGE_CALENDAR_ADDED = 2;
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private static final int NOTIFICATION_ID_ATTACHMENT_WARNING = 3;
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private static final int NOTIFICATION_ID_PASSWORD_EXPIRING = 4;
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private static final int NOTIFICATION_ID_PASSWORD_EXPIRED = 5;
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private static final int NOTIFICATION_ID_BASE_NEW_MESSAGES = 0x10000000;
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private static final int NOTIFICATION_ID_BASE_LOGIN_WARNING = 0x20000000;
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/** Selection to retrieve accounts that should we notify user for changes */
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private final static String NOTIFIED_ACCOUNT_SELECTION =
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Account.FLAGS + "&" + Account.FLAGS_NOTIFY_NEW_MAIL + " != 0";
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private static NotificationThread sNotificationThread;
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private static Handler sNotificationHandler;
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private static NotificationController sInstance;
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private final Context mContext;
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private final NotificationManager mNotificationManager;
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private final AudioManager mAudioManager;
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private final Bitmap mGenericSenderIcon;
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private final Clock mClock;
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// TODO We're maintaining all of our structures based upon the account ID. This is fine
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// for now since the assumption is that we only ever look for changes in an account's
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// INBOX. We should adjust our logic to use the mailbox ID instead.
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/** Maps account id to the message data */
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private final HashMap<Long, MessageData> mNotificationMap;
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private ContentObserver mAccountObserver;
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/**
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* Suspend notifications for this account. If {@link Account#NO_ACCOUNT}, no
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* account notifications are suspended. If {@link Account#ACCOUNT_ID_COMBINED_VIEW},
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* notifications for all accounts are suspended.
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*/
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private long mSuspendAccountId = Account.NO_ACCOUNT;
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/** Constructor */
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@VisibleForTesting
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NotificationController(Context context, Clock clock) {
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mContext = context.getApplicationContext();
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mNotificationManager = (NotificationManager) context.getSystemService(
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Context.NOTIFICATION_SERVICE);
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mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
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mGenericSenderIcon = BitmapFactory.decodeResource(mContext.getResources(),
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R.drawable.ic_contact_picture);
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mClock = clock;
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mNotificationMap = new HashMap<Long, MessageData>();
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}
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/** Singleton access */
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public static synchronized NotificationController getInstance(Context context) {
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if (sInstance == null) {
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sInstance = new NotificationController(context, Clock.INSTANCE);
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}
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return sInstance;
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}
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/**
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* Returns a {@link Notification} for an event with the given account. The account contains
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* specific rules on ring tone usage and these will be used to modify the notification
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* behaviour.
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*
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* @param account The account this notification is being built for.
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* @param ticker Text displayed when the notification is first shown. May be {@code null}.
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* @param title The first line of text. May NOT be {@code null}.
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* @param contentText The second line of text. May NOT be {@code null}.
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* @param intent The intent to start if the user clicks on the notification.
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* @param largeIcon A large icon. May be {@code null}
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* @param number A number to display using {@link Builder#setNumber(int)}. May
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* be {@code null}.
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* @param enableAudio If {@code false}, do not play any sound. Otherwise, play sound according
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* to the settings for the given account.
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* @return A {@link Notification} that can be sent to the notification service.
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*/
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private Notification createAccountNotification(Account account, String ticker,
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CharSequence title, String contentText, Intent intent, Bitmap largeIcon,
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Integer number, boolean enableAudio) {
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// Pending Intent
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PendingIntent pending = null;
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if (intent != null) {
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pending = PendingIntent.getActivity(
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mContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
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}
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// NOTE: the ticker is not shown for notifications in the Holo UX
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Notification.Builder builder = new Notification.Builder(mContext)
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.setContentTitle(title)
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.setContentText(contentText)
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.setContentIntent(pending)
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.setLargeIcon(largeIcon)
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.setNumber(number == null ? 0 : number)
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.setSmallIcon(R.drawable.stat_notify_email_generic)
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.setWhen(mClock.getTime())
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.setTicker(ticker);
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if (enableAudio) {
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setupSoundAndVibration(builder, account);
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}
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Notification notification = builder.getNotification();
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return notification;
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}
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/**
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* Generic notifier for any account. Uses notification rules from account.
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*
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* @param account The account this notification is being built for.
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* @param ticker Text displayed when the notification is first shown. May be {@code null}.
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* @param title The first line of text. May NOT be {@code null}.
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* @param contentText The second line of text. May NOT be {@code null}.
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* @param intent The intent to start if the user clicks on the notification.
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* @param notificationId The ID of the notification to register with the service.
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*/
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private void showAccountNotification(Account account, String ticker, String title,
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String contentText, Intent intent, int notificationId) {
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Notification notification = createAccountNotification(account, ticker, title, contentText,
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intent, null, null, true);
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mNotificationManager.notify(notificationId, notification);
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}
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/**
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* Returns a notification ID for new message notifications for the given account.
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*/
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private int getNewMessageNotificationId(long accountId) {
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// We assume accountId will always be less than 0x0FFFFFFF; is there a better way?
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return (int) (NOTIFICATION_ID_BASE_NEW_MESSAGES + accountId);
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}
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/**
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* Tells the notification controller if it should be watching for changes to the message table.
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* This is the main life cycle method for message notifications. When we stop observing
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* database changes, we save the state [e.g. message ID and count] of the most recent
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* notification shown to the user. And, when we start observing database changes, we restore
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* the saved state.
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* @param watch If {@code true}, we register observers for all accounts whose settings have
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* notifications enabled. Otherwise, all observers are unregistered.
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*/
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public void watchForMessages(final boolean watch) {
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// Don't create the thread if we're only going to stop watching
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if (!watch && sNotificationThread == null) return;
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ensureHandlerExists();
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// Run this on the message notification handler
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sNotificationHandler.post(new Runnable() {
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@Override
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public void run() {
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ContentResolver resolver = mContext.getContentResolver();
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HashMap<Long, long[]> table;
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if (!watch) {
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unregisterMessageNotification(Account.ACCOUNT_ID_COMBINED_VIEW);
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if (mAccountObserver != null) {
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resolver.unregisterContentObserver(mAccountObserver);
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mAccountObserver = null;
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}
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// tear down the event loop
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sNotificationThread.quit();
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sNotificationThread = null;
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return;
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}
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// otherwise, start new observers for all notified accounts
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registerMessageNotification(Account.ACCOUNT_ID_COMBINED_VIEW);
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// If we're already observing account changes, don't do anything else
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if (mAccountObserver == null) {
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mAccountObserver = new AccountContentObserver(sNotificationHandler, mContext);
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resolver.registerContentObserver(Account.NOTIFIER_URI, true, mAccountObserver);
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}
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}
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});
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}
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/**
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* Temporarily suspend a single account from receiving notifications. NOTE: only a single
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* account may ever be suspended at a time. So, if this method is invoked a second time,
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* notifications for the previously suspended account will automatically be re-activated.
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* @param suspend If {@code true}, suspend notifications for the given account. Otherwise,
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* re-activate notifications for the previously suspended account.
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* @param accountId The ID of the account. If this is the special account ID
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* {@link Account#ACCOUNT_ID_COMBINED_VIEW}, notifications for all accounts are
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* suspended. If {@code suspend} is {@code false}, the account ID is ignored.
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*/
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public void suspendMessageNotification(boolean suspend, long accountId) {
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if (mSuspendAccountId != Account.NO_ACCOUNT) {
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// we're already suspending an account; un-suspend it
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mSuspendAccountId = Account.NO_ACCOUNT;
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}
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if (suspend && accountId != Account.NO_ACCOUNT && accountId > 0L) {
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mSuspendAccountId = accountId;
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if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
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// Only go onto the notification handler if we really, absolutely need to
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ensureHandlerExists();
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sNotificationHandler.post(new Runnable() {
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@Override
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public void run() {
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for (long accountId : mNotificationMap.keySet()) {
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mNotificationManager.cancel(getNewMessageNotificationId(accountId));
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}
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}
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});
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} else {
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mNotificationManager.cancel(getNewMessageNotificationId(accountId));
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}
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}
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}
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/**
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* Ensures the notification handler exists and is ready to handle requests.
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*/
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private static synchronized void ensureHandlerExists() {
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if (sNotificationThread == null) {
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sNotificationThread = new NotificationThread();
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sNotificationHandler = new Handler(sNotificationThread.getLooper());
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}
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}
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/**
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* Registers an observer for changes to the INBOX for the given account. Since accounts
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* may only have a single INBOX, we will never have more than one observer for an account.
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* NOTE: This must be called on the notification handler thread.
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* @param accountId The ID of the account to register the observer for. May be
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* {@link Account#ACCOUNT_ID_COMBINED_VIEW} to register observers for all
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* accounts that allow for user notification.
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*/
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private void registerMessageNotification(long accountId) {
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ContentResolver resolver = mContext.getContentResolver();
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if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
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Cursor c = resolver.query(
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Account.CONTENT_URI, EmailContent.ID_PROJECTION,
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NOTIFIED_ACCOUNT_SELECTION, null, null);
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try {
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while (c.moveToNext()) {
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long id = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
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registerMessageNotification(id);
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}
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} finally {
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c.close();
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}
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} else {
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MessageData data = mNotificationMap.get(accountId);
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if (data != null) return; // we're already observing; nothing to do
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data = new MessageData();
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Mailbox mailbox = Mailbox.restoreMailboxOfType(mContext, accountId, Mailbox.TYPE_INBOX);
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if (mailbox == null) {
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Log.w(Logging.LOG_TAG, "Could not load INBOX for account id: " + accountId);
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return;
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}
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ContentObserver observer = new MessageContentObserver(
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sNotificationHandler, mContext, mailbox.mId, accountId);
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resolver.registerContentObserver(Message.NOTIFIER_URI, true, observer);
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data.mObserver = observer;
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mNotificationMap.put(accountId, data);
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// Now, ping the observer for any initial notifications
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data.mObserver.onChange(true);
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}
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}
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/**
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* Unregisters the observer for the given account. If the specified account does not have
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* a registered observer, no action is performed. This will not clear any existing notification
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* for the specified account. Use {@link NotificationManager#cancel(int)}.
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* NOTE: This must be called on the notification handler thread.
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* @param accountId The ID of the account to unregister from. To unregister all accounts that
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* have observers, specify an ID of {@link Account#ACCOUNT_ID_COMBINED_VIEW}.
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*/
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private void unregisterMessageNotification(long accountId) {
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ContentResolver resolver = mContext.getContentResolver();
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if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
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// cancel all existing message observers
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for (MessageData data : mNotificationMap.values()) {
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ContentObserver observer = data.mObserver;
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resolver.unregisterContentObserver(observer);
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}
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mNotificationMap.clear();
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} else {
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MessageData data = mNotificationMap.remove(accountId);
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if (data != null) {
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ContentObserver observer = data.mObserver;
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resolver.unregisterContentObserver(observer);
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}
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}
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}
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/**
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* Returns a picture of the sender of the given message. If no picture is available, returns
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* {@code null}.
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*
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* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
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*/
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private Bitmap getSenderPhoto(Message message) {
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Address sender = Address.unpackFirst(message.mFrom);
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if (sender == null) {
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return null;
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}
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String email = sender.getAddress();
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if (TextUtils.isEmpty(email)) {
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return null;
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}
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return ContactStatusLoader.getContactInfo(mContext, email).mPhoto;
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}
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/**
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* Returns a "new message" notification for the given account.
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*
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* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
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*/
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@VisibleForTesting
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Notification createNewMessageNotification(long accountId, long mailboxId, long messageId,
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int unseenMessageCount, boolean enableAudio) {
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final Account account = Account.restoreAccountWithId(mContext, accountId);
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if (account == null) {
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return null;
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}
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// Get the latest message
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final Message message = Message.restoreMessageWithId(mContext, messageId);
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if (message == null) {
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return null; // no message found???
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}
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String senderName = Address.toFriendly(Address.unpack(message.mFrom));
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if (senderName == null) {
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senderName = ""; // Happens when a message has no from.
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}
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final String subject = message.mSubject;
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final Bitmap senderPhoto = getSenderPhoto(message);
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final SpannableString title = getNewMessageTitle(senderName, account.mDisplayName);
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final Bitmap largeIcon = senderPhoto != null ? senderPhoto : mGenericSenderIcon;
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final Integer number = unseenMessageCount > 1 ? unseenMessageCount : null;
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final Intent intent;
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if (unseenMessageCount >= 1) {
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intent = Welcome.createOpenMessageIntent(mContext, accountId, mailboxId, messageId);
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} else {
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intent = Welcome.createOpenAccountInboxIntent(mContext, accountId);
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}
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Notification notification = createAccountNotification(account, null, title, subject,
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intent, largeIcon, number, enableAudio);
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return notification;
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}
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/**
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* Creates a notification title for a new message. If there is only 1 email account, just
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* show the sender name. Otherwise, show both the sender and the account name, but, grey
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* out the account name.
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*/
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@VisibleForTesting
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SpannableString getNewMessageTitle(String sender, String receiverDisplayName) {
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final int numAccounts = EmailContent.count(mContext, Account.CONTENT_URI);
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if (numAccounts == 1) {
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return new SpannableString(sender);
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} else {
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// "to [account name]"
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String toAcccount = mContext.getResources().getString(R.string.notification_to_account,
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receiverDisplayName);
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// "[Sender] to [account name]"
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SpannableString senderToAccount = new SpannableString(sender + " " + toAcccount);
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// "[Sender] to [account name]"
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// ^^^^^^^^^^^^^^^^^ <- Make this part gray
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TextAppearanceSpan secondarySpan = new TextAppearanceSpan(
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mContext, R.style.notification_secondary_text);
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senderToAccount.setSpan(secondarySpan, sender.length() + 1, senderToAccount.length(),
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0);
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return senderToAccount;
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}
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}
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/** Returns the system's current ringer mode */
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@VisibleForTesting
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int getRingerMode() {
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return mAudioManager.getRingerMode();
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}
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/** Sets up the notification's sound and vibration based upon account details. */
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@VisibleForTesting
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void setupSoundAndVibration(Notification.Builder builder, Account account) {
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final int flags = account.mFlags;
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final String ringtoneUri = account.mRingtoneUri;
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final boolean vibrate = (flags & Account.FLAGS_VIBRATE_ALWAYS) != 0;
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final boolean vibrateWhenSilent = (flags & Account.FLAGS_VIBRATE_WHEN_SILENT) != 0;
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final boolean isRingerSilent = getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
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int defaults = Notification.DEFAULT_LIGHTS;
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if (vibrate || (vibrateWhenSilent && isRingerSilent)) {
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defaults |= Notification.DEFAULT_VIBRATE;
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}
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builder.setSound((ringtoneUri == null) ? null : Uri.parse(ringtoneUri))
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.setDefaults(defaults);
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}
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/**
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* Show (or update) a notification that the given attachment could not be forwarded. This
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* is a very unusual case, and perhaps we shouldn't even send a notification. For now,
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* it's helpful for debugging.
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*
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* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
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*/
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public void showDownloadForwardFailedNotification(Attachment attachment) {
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final Account account = Account.restoreAccountWithId(mContext, attachment.mAccountKey);
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if (account == null) return;
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showAccountNotification(account,
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mContext.getString(R.string.forward_download_failed_ticker),
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mContext.getString(R.string.forward_download_failed_title),
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attachment.mFileName,
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null,
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NOTIFICATION_ID_ATTACHMENT_WARNING);
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}
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/**
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* Returns a notification ID for login failed notifications for the given account account.
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*/
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private int getLoginFailedNotificationId(long accountId) {
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return NOTIFICATION_ID_BASE_LOGIN_WARNING + (int)accountId;
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}
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|
/**
|
|
* Show (or update) a notification that there was a login failure for the given account.
|
|
*
|
|
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
|
|
*/
|
|
public void showLoginFailedNotification(long accountId) {
|
|
final Account account = Account.restoreAccountWithId(mContext, accountId);
|
|
if (account == null) return;
|
|
showAccountNotification(account,
|
|
mContext.getString(R.string.login_failed_ticker, account.mDisplayName),
|
|
mContext.getString(R.string.login_failed_title),
|
|
account.getDisplayName(),
|
|
AccountSettings.createAccountSettingsIntent(mContext, accountId,
|
|
account.mDisplayName),
|
|
getLoginFailedNotificationId(accountId));
|
|
}
|
|
|
|
/**
|
|
* Cancels the login failed notification for the given account.
|
|
*/
|
|
public void cancelLoginFailedNotification(long accountId) {
|
|
mNotificationManager.cancel(getLoginFailedNotificationId(accountId));
|
|
}
|
|
|
|
/**
|
|
* Show (or update) a notification that the user's password is expiring. The given account
|
|
* is used to update the display text, but, all accounts share the same notification ID.
|
|
*
|
|
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
|
|
*/
|
|
public void showPasswordExpiringNotification(long accountId) {
|
|
Account account = Account.restoreAccountWithId(mContext, accountId);
|
|
if (account == null) return;
|
|
|
|
Intent intent = AccountSecurity.actionDevicePasswordExpirationIntent(mContext,
|
|
accountId, false);
|
|
String accountName = account.getDisplayName();
|
|
String ticker =
|
|
mContext.getString(R.string.password_expire_warning_ticker_fmt, accountName);
|
|
String title = mContext.getString(R.string.password_expire_warning_content_title);
|
|
showAccountNotification(account, ticker, title, accountName, intent,
|
|
NOTIFICATION_ID_PASSWORD_EXPIRING);
|
|
}
|
|
|
|
/**
|
|
* Show (or update) a notification that the user's password has expired. The given account
|
|
* is used to update the display text, but, all accounts share the same notification ID.
|
|
*
|
|
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
|
|
*/
|
|
public void showPasswordExpiredNotification(long accountId) {
|
|
Account account = Account.restoreAccountWithId(mContext, accountId);
|
|
if (account == null) return;
|
|
|
|
Intent intent = AccountSecurity.actionDevicePasswordExpirationIntent(mContext,
|
|
accountId, true);
|
|
String accountName = account.getDisplayName();
|
|
String ticker = mContext.getString(R.string.password_expired_ticker);
|
|
String title = mContext.getString(R.string.password_expired_content_title);
|
|
showAccountNotification(account, ticker, title, accountName, intent,
|
|
NOTIFICATION_ID_PASSWORD_EXPIRED);
|
|
}
|
|
|
|
/**
|
|
* Cancels any password expire notifications [both expired & expiring].
|
|
*/
|
|
public void cancelPasswordExpirationNotifications() {
|
|
mNotificationManager.cancel(NOTIFICATION_ID_PASSWORD_EXPIRING);
|
|
mNotificationManager.cancel(NOTIFICATION_ID_PASSWORD_EXPIRED);
|
|
}
|
|
|
|
/**
|
|
* Show (or update) a security needed notification. The given account is used to update
|
|
* the display text, but, all accounts share the same notification ID.
|
|
*/
|
|
public void showSecurityNeededNotification(Account account) {
|
|
Intent intent = AccountSecurity.actionUpdateSecurityIntent(mContext, account.mId, true);
|
|
String accountName = account.getDisplayName();
|
|
String ticker =
|
|
mContext.getString(R.string.security_notification_ticker_fmt, accountName);
|
|
String title = mContext.getString(R.string.security_notification_content_title);
|
|
showAccountNotification(account, ticker, title, accountName, intent,
|
|
NOTIFICATION_ID_SECURITY_NEEDED);
|
|
}
|
|
|
|
/**
|
|
* Cancels the security needed notification.
|
|
*/
|
|
public void cancelSecurityNeededNotification() {
|
|
mNotificationManager.cancel(NOTIFICATION_ID_SECURITY_NEEDED);
|
|
}
|
|
|
|
/**
|
|
* Observer invoked whenever a message we're notifying the user about changes.
|
|
*/
|
|
private static class MessageContentObserver extends ContentObserver {
|
|
/** A selection to get messages the user hasn't seen before */
|
|
private final static String MESSAGE_SELECTION =
|
|
MessageColumns.MAILBOX_KEY + "=? AND " + MessageColumns.ID + ">? AND "
|
|
+ MessageColumns.FLAG_READ + "=0";
|
|
private final Context mContext;
|
|
private final long mMailboxId;
|
|
private final long mAccountId;
|
|
|
|
public MessageContentObserver(
|
|
Handler handler, Context context, long mailboxId, long accountId) {
|
|
super(handler);
|
|
mContext = context;
|
|
mMailboxId = mailboxId;
|
|
mAccountId = accountId;
|
|
}
|
|
|
|
@Override
|
|
public void onChange(boolean selfChange) {
|
|
if (mAccountId == sInstance.mSuspendAccountId
|
|
|| sInstance.mSuspendAccountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
|
|
return;
|
|
}
|
|
|
|
MessageData data = sInstance.mNotificationMap.get(mAccountId);
|
|
if (data == null) {
|
|
// notification for a mailbox that we aren't observing; this should not happen
|
|
Log.e(Logging.LOG_TAG, "Received notifiaction when observer data was null");
|
|
return;
|
|
}
|
|
long oldMessageId = data.mNotifiedMessageId;
|
|
int oldMessageCount = data.mNotifiedMessageCount;
|
|
|
|
ContentResolver resolver = mContext.getContentResolver();
|
|
long lastSeenMessageId = Utility.getFirstRowLong(
|
|
mContext, Mailbox.CONTENT_URI,
|
|
new String[] { MailboxColumns.LAST_SEEN_MESSAGE_KEY },
|
|
EmailContent.ID_SELECTION,
|
|
new String[] { Long.toString(mMailboxId) }, null, 0, 0L);
|
|
Cursor c = resolver.query(
|
|
Message.CONTENT_URI, EmailContent.ID_PROJECTION,
|
|
MESSAGE_SELECTION,
|
|
new String[] { Long.toString(mMailboxId), Long.toString(lastSeenMessageId) },
|
|
MessageColumns.ID + " DESC");
|
|
if (c == null) {
|
|
// Suspender time ... theoretically, this will never happen
|
|
Log.wtf(Logging.LOG_TAG, "#onChange(); NULL response for message id query");
|
|
return;
|
|
}
|
|
try {
|
|
int newMessageCount = c.getCount();
|
|
long newMessageId = 0L;
|
|
if (c.moveToNext()) {
|
|
newMessageId = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
|
|
}
|
|
|
|
if (newMessageCount == 0) {
|
|
// No messages to notify for; clear the notification
|
|
int notificationId = sInstance.getNewMessageNotificationId(mAccountId);
|
|
sInstance.mNotificationManager.cancel(notificationId);
|
|
} else if (newMessageCount != oldMessageCount
|
|
|| (newMessageId != 0 && newMessageId != oldMessageId)) {
|
|
// Either the count or last message has changed; update the notification
|
|
boolean playAudio = (oldMessageCount == 0); // play audio on first notification
|
|
Notification n = sInstance.createNewMessageNotification(
|
|
mAccountId, mMailboxId, newMessageId, newMessageCount, playAudio);
|
|
if (n != null) {
|
|
// Make the notification visible
|
|
sInstance.mNotificationManager.notify(
|
|
sInstance.getNewMessageNotificationId(mAccountId), n);
|
|
}
|
|
}
|
|
data.mNotifiedMessageId = newMessageId;
|
|
data.mNotifiedMessageCount = newMessageCount;
|
|
} finally {
|
|
c.close();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Observer invoked whenever an account is modified. This could mean the user changed the
|
|
* notification settings.
|
|
*/
|
|
private static class AccountContentObserver extends ContentObserver {
|
|
private final Context mContext;
|
|
public AccountContentObserver(Handler handler, Context context) {
|
|
super(handler);
|
|
mContext = context;
|
|
}
|
|
|
|
@Override
|
|
public void onChange(boolean selfChange) {
|
|
final ContentResolver resolver = mContext.getContentResolver();
|
|
final Cursor c = resolver.query(
|
|
Account.CONTENT_URI, EmailContent.ID_PROJECTION,
|
|
NOTIFIED_ACCOUNT_SELECTION, null, null);
|
|
final HashSet<Long> newAccountList = new HashSet<Long>();
|
|
final HashSet<Long> removedAccountList = new HashSet<Long>();
|
|
if (c == null) {
|
|
// Suspender time ... theoretically, this will never happen
|
|
Log.wtf(Logging.LOG_TAG, "#onChange(); NULL response for account id query");
|
|
return;
|
|
}
|
|
try {
|
|
while (c.moveToNext()) {
|
|
long accountId = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
|
|
newAccountList.add(accountId);
|
|
}
|
|
} finally {
|
|
if (c != null) {
|
|
c.close();
|
|
}
|
|
}
|
|
// NOTE: Looping over three lists is not necessarily the most efficient. However, the
|
|
// account lists are going to be very small, so, this will not be necessarily bad.
|
|
// Cycle through existing notification list and adjust as necessary
|
|
for (long accountId : sInstance.mNotificationMap.keySet()) {
|
|
if (!newAccountList.remove(accountId)) {
|
|
// account id not in the current set of notifiable accounts
|
|
removedAccountList.add(accountId);
|
|
}
|
|
}
|
|
// A new account was added to the notification list
|
|
for (long accountId : newAccountList) {
|
|
sInstance.registerMessageNotification(accountId);
|
|
}
|
|
// An account was removed from the notification list
|
|
for (long accountId : removedAccountList) {
|
|
sInstance.unregisterMessageNotification(accountId);
|
|
int notificationId = sInstance.getNewMessageNotificationId(accountId);
|
|
sInstance.mNotificationManager.cancel(notificationId);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Information about the message(s) we're notifying the user about. */
|
|
private static class MessageData {
|
|
/** The database observer */
|
|
ContentObserver mObserver;
|
|
/** Message ID used in the user notification */
|
|
long mNotifiedMessageId;
|
|
/** Message count used in the user notification */
|
|
int mNotifiedMessageCount;
|
|
}
|
|
|
|
/**
|
|
* Thread to handle all notification actions through its own {@link Looper}.
|
|
*/
|
|
private static class NotificationThread implements Runnable {
|
|
/** Lock to ensure proper initialization */
|
|
private final Object mLock = new Object();
|
|
/** The {@link Looper} that handles messages for this thread */
|
|
private Looper mLooper;
|
|
|
|
NotificationThread() {
|
|
new Thread(null, this, "EmailNotification").start();
|
|
synchronized (mLock) {
|
|
while (mLooper == null) {
|
|
try {
|
|
mLock.wait();
|
|
} catch (InterruptedException ex) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
synchronized (mLock) {
|
|
Looper.prepare();
|
|
mLooper = Looper.myLooper();
|
|
mLock.notifyAll();
|
|
}
|
|
Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
|
|
Looper.loop();
|
|
}
|
|
void quit() {
|
|
mLooper.quit();
|
|
}
|
|
Looper getLooper() {
|
|
return mLooper;
|
|
}
|
|
}
|
|
}
|