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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.email;
import android.app.Notification;
import android.app.Notification.Builder;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Handler;
import android.os.Looper;
import android.os.Process;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.style.TextAppearanceSpan;
import android.util.Log;
import com.android.email.activity.ContactStatusLoader;
import com.android.email.activity.setup.AccountSecurity;
import com.android.email.activity.setup.AccountSettings;
import com.android.email.provider.EmailProvider;
import com.android.email.service.EmailBroadcastProcessorService;
import com.android.email2.ui.MailActivityEmail;
import com.android.emailcommon.Logging;
import com.android.emailcommon.mail.Address;
import com.android.emailcommon.provider.Account;
import com.android.emailcommon.provider.EmailContent;
import com.android.emailcommon.provider.EmailContent.Attachment;
import com.android.emailcommon.provider.EmailContent.MailboxColumns;
import com.android.emailcommon.provider.EmailContent.Message;
import com.android.emailcommon.provider.Mailbox;
import com.android.emailcommon.utility.EmailAsyncTask;
import com.android.emailcommon.utility.Utility;
import com.android.mail.providers.Conversation;
import com.android.mail.providers.Folder;
import com.android.mail.providers.UIProvider;
import com.android.mail.utils.Utils;
import com.google.common.annotations.VisibleForTesting;
import java.util.HashMap;
import java.util.HashSet;
/**
* Class that manages notifications.
*/
public class NotificationController {
private static final String TAG = "NotificationController";
/** Reserved for {@link com.android.exchange.CalendarSyncEnabler} */
@SuppressWarnings("unused")
private static final int NOTIFICATION_ID_EXCHANGE_CALENDAR_ADDED = 2;
private static final int NOTIFICATION_ID_ATTACHMENT_WARNING = 3;
private static final int NOTIFICATION_ID_PASSWORD_EXPIRING = 4;
private static final int NOTIFICATION_ID_PASSWORD_EXPIRED = 5;
private static final int NOTIFICATION_ID_BASE_MASK = 0xF0000000;
private static final int NOTIFICATION_ID_BASE_NEW_MESSAGES = 0x10000000;
private static final int NOTIFICATION_ID_BASE_LOGIN_WARNING = 0x20000000;
private static final int NOTIFICATION_ID_BASE_SECURITY_NEEDED = 0x30000000;
private static final int NOTIFICATION_ID_BASE_SECURITY_CHANGED = 0x40000000;
/** Selection to retrieve accounts that should we notify user for changes */
private final static String NOTIFIED_ACCOUNT_SELECTION =
Account.FLAGS + "&" + Account.FLAGS_NOTIFY_NEW_MAIL + " != 0";
private static final String NEW_MAIL_MAILBOX_ID = "com.android.email.new_mail.mailboxId";
private static final String NEW_MAIL_MESSAGE_ID = "com.android.email.new_mail.messageId";
private static final String NEW_MAIL_MESSAGE_COUNT = "com.android.email.new_mail.messageCount";
private static final String NEW_MAIL_UNREAD_COUNT = "com.android.email.new_mail.unreadCount";
private static NotificationThread sNotificationThread;
private static Handler sNotificationHandler;
private static NotificationController sInstance;
private final Context mContext;
private final NotificationManager mNotificationManager;
private final AudioManager mAudioManager;
private final Bitmap mGenericSenderIcon;
private final Bitmap mGenericMultipleSenderIcon;
private final Clock mClock;
/** Maps account id to its observer */
private final HashMap<Long, ContentObserver> mNotificationMap;
private ContentObserver mAccountObserver;
/**
* Timestamp indicating when the last message notification sound was played.
* Used for throttling.
*/
private long mLastMessageNotifyTime;
/**
* Minimum interval between notification sounds.
* Since a long sync (either on account setup or after a long period of being offline) can cause
* several notifications consecutively, it can be pretty overwhelming to get a barrage of
* notification sounds. Throttle them using this value.
*/
private static final long MIN_SOUND_INTERVAL_MS = 15 * 1000; // 15 seconds
/** Constructor */
@VisibleForTesting
NotificationController(Context context, Clock clock) {
mContext = context.getApplicationContext();
mNotificationManager = (NotificationManager) context.getSystemService(
Context.NOTIFICATION_SERVICE);
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mGenericSenderIcon = BitmapFactory.decodeResource(mContext.getResources(),
R.drawable.ic_contact_picture);
mGenericMultipleSenderIcon = BitmapFactory.decodeResource(mContext.getResources(),
R.drawable.ic_notification_multiple_mail_holo_dark);
mClock = clock;
mNotificationMap = new HashMap<Long, ContentObserver>();
}
/** Singleton access */
public static synchronized NotificationController getInstance(Context context) {
if (sInstance == null) {
sInstance = new NotificationController(context, Clock.INSTANCE);
}
return sInstance;
}
/**
* Return whether or not a notification, based on the passed-in id, needs to be "ongoing"
* @param notificationId the notification id to check
* @return whether or not the notification must be "ongoing"
*/
private boolean needsOngoingNotification(int notificationId) {
// "Security needed" must be ongoing so that the user doesn't close it; otherwise, sync will
// be prevented until a reboot. Consider also doing this for password expired.
return (notificationId & NOTIFICATION_ID_BASE_MASK) == NOTIFICATION_ID_BASE_SECURITY_NEEDED;
}
/**
* Returns a {@link Notification.Builder}} for an event with the given account. The account
* contains specific rules on ring tone usage and these will be used to modify the notification
* behaviour.
*
* @param accountId The id of the account this notification is being built for.
* @param ticker Text displayed when the notification is first shown. May be {@code null}.
* @param title The first line of text. May NOT be {@code null}.
* @param contentText The second line of text. May NOT be {@code null}.
* @param intent The intent to start if the user clicks on the notification.
* @param largeIcon A large icon. May be {@code null}
* @param number A number to display using {@link Builder#setNumber(int)}. May
* be {@code null}.
* @param enableAudio If {@code false}, do not play any sound. Otherwise, play sound according
* to the settings for the given account.
* @return A {@link Notification} that can be sent to the notification service.
*/
private Notification.Builder createBaseAccountNotificationBuilder(long accountId, String ticker,
CharSequence title, String contentText, Intent intent, Bitmap largeIcon,
Integer number, boolean enableAudio, boolean ongoing) {
// Pending Intent
PendingIntent pending = null;
if (intent != null) {
pending = PendingIntent.getActivity(
mContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
// NOTE: the ticker is not shown for notifications in the Holo UX
final Notification.Builder builder = new Notification.Builder(mContext)
.setContentTitle(title)
.setContentText(contentText)
.setContentIntent(pending)
.setLargeIcon(largeIcon)
.setNumber(number == null ? 0 : number)
.setSmallIcon(R.drawable.stat_notify_email_generic)
.setWhen(mClock.getTime())
.setTicker(ticker)
.setOngoing(ongoing);
if (enableAudio) {
Account account = Account.restoreAccountWithId(mContext, accountId);
setupSoundAndVibration(builder, account);
}
return builder;
}
/**
* Generic notifier for any account. Uses notification rules from account.
*
* @param accountId The account id this notification is being built for.
* @param ticker Text displayed when the notification is first shown. May be {@code null}.
* @param title The first line of text. May NOT be {@code null}.
* @param contentText The second line of text. May NOT be {@code null}.
* @param intent The intent to start if the user clicks on the notification.
* @param notificationId The ID of the notification to register with the service.
*/
private void showNotification(long accountId, String ticker, String title,
String contentText, Intent intent, int notificationId) {
final Notification.Builder builder = createBaseAccountNotificationBuilder(accountId, ticker,
title, contentText, intent, null, null, true,
needsOngoingNotification(notificationId));
mNotificationManager.notify(notificationId, builder.getNotification());
}
/**
* Returns a notification ID for new message notifications for the given account.
*/
private int getNewMessageNotificationId(long mailboxId) {
// We assume accountId will always be less than 0x0FFFFFFF; is there a better way?
return (int) (NOTIFICATION_ID_BASE_NEW_MESSAGES + mailboxId);
}
/**
* Tells the notification controller if it should be watching for changes to the message table.
* This is the main life cycle method for message notifications. When we stop observing
* database changes, we save the state [e.g. message ID and count] of the most recent
* notification shown to the user. And, when we start observing database changes, we restore
* the saved state.
* @param watch If {@code true}, we register observers for all accounts whose settings have
* notifications enabled. Otherwise, all observers are unregistered.
*/
public void watchForMessages(final boolean watch) {
if (MailActivityEmail.DEBUG) {
Log.d(Logging.LOG_TAG, "Notifications being toggled: " + watch);
}
// Don't create the thread if we're only going to stop watching
if (!watch && sNotificationThread == null) return;
ensureHandlerExists();
// Run this on the message notification handler
sNotificationHandler.post(new Runnable() {
@Override
public void run() {
ContentResolver resolver = mContext.getContentResolver();
if (!watch) {
unregisterMessageNotification(Account.ACCOUNT_ID_COMBINED_VIEW);
if (mAccountObserver != null) {
resolver.unregisterContentObserver(mAccountObserver);
mAccountObserver = null;
}
// tear down the event loop
sNotificationThread.quit();
sNotificationThread = null;
return;
}
// otherwise, start new observers for all notified accounts
registerMessageNotification(Account.ACCOUNT_ID_COMBINED_VIEW);
// If we're already observing account changes, don't do anything else
if (mAccountObserver == null) {
if (MailActivityEmail.DEBUG) {
Log.i(Logging.LOG_TAG, "Observing account changes for notifications");
}
mAccountObserver = new AccountContentObserver(sNotificationHandler, mContext);
resolver.registerContentObserver(Account.NOTIFIER_URI, true, mAccountObserver);
}
}
});
}
/**
* Ensures the notification handler exists and is ready to handle requests.
*/
private static synchronized void ensureHandlerExists() {
if (sNotificationThread == null) {
sNotificationThread = new NotificationThread();
sNotificationHandler = new Handler(sNotificationThread.getLooper());
}
}
/**
* Registers an observer for changes to mailboxes in the given account.
* NOTE: This must be called on the notification handler thread.
* @param accountId The ID of the account to register the observer for. May be
* {@link Account#ACCOUNT_ID_COMBINED_VIEW} to register observers for all
* accounts that allow for user notification.
*/
private void registerMessageNotification(long accountId) {
ContentResolver resolver = mContext.getContentResolver();
if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
Cursor c = resolver.query(
Account.CONTENT_URI, EmailContent.ID_PROJECTION,
NOTIFIED_ACCOUNT_SELECTION, null, null);
try {
while (c.moveToNext()) {
long id = c.getLong(EmailContent.ID_PROJECTION_COLUMN);
registerMessageNotification(id);
}
} finally {
c.close();
}
} else {
ContentObserver obs = mNotificationMap.get(accountId);
if (obs != null) return; // we're already observing; nothing to do
if (MailActivityEmail.DEBUG) {
Log.i(Logging.LOG_TAG, "Registering for notifications for account " + accountId);
}
ContentObserver observer = new MessageContentObserver(
sNotificationHandler, mContext, accountId);
resolver.registerContentObserver(Message.NOTIFIER_URI, true, observer);
mNotificationMap.put(accountId, observer);
// Now, ping the observer for any initial notifications
observer.onChange(true);
}
}
/**
* Unregisters the observer for the given account. If the specified account does not have
* a registered observer, no action is performed. This will not clear any existing notification
* for the specified account. Use {@link NotificationManager#cancel(int)}.
* NOTE: This must be called on the notification handler thread.
* @param accountId The ID of the account to unregister from. To unregister all accounts that
* have observers, specify an ID of {@link Account#ACCOUNT_ID_COMBINED_VIEW}.
*/
private void unregisterMessageNotification(long accountId) {
ContentResolver resolver = mContext.getContentResolver();
if (accountId == Account.ACCOUNT_ID_COMBINED_VIEW) {
if (MailActivityEmail.DEBUG) {
Log.i(Logging.LOG_TAG, "Unregistering notifications for all accounts");
}
// cancel all existing message observers
for (ContentObserver observer : mNotificationMap.values()) {
resolver.unregisterContentObserver(observer);
}
mNotificationMap.clear();
} else {
if (MailActivityEmail.DEBUG) {
Log.i(Logging.LOG_TAG, "Unregistering notifications for account " + accountId);
}
ContentObserver observer = mNotificationMap.remove(accountId);
if (observer != null) {
resolver.unregisterContentObserver(observer);
}
}
}
/**
* Returns a picture of the sender of the given message. If no picture is available, returns
* {@code null}.
*
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
*/
private Bitmap getSenderPhoto(Message message) {
Address sender = Address.unpackFirst(message.mFrom);
if (sender == null) {
return null;
}
String email = sender.getAddress();
if (TextUtils.isEmpty(email)) {
return null;
}
Bitmap photo = ContactStatusLoader.getContactInfo(mContext, email).mPhoto;
if (photo != null) {
final Resources res = mContext.getResources();
final int idealIconHeight =
res.getDimensionPixelSize(android.R.dimen.notification_large_icon_height);
final int idealIconWidth =
res.getDimensionPixelSize(android.R.dimen.notification_large_icon_width);
if (photo.getHeight() < idealIconHeight) {
// We should scale this image to fit the intended size
photo = Bitmap.createScaledBitmap(
photo, idealIconWidth, idealIconHeight, true);
}
}
return photo;
}
public static final String EXTRA_ACCOUNT = "account";
public static final String EXTRA_CONVERSATION = "conversationUri";
public static final String EXTRA_FOLDER = "folder";
private Intent createViewConversationIntent(Conversation conversation, Folder folder,
com.android.mail.providers.Account account) {
final Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.setDataAndType(conversation.uri, account.mimeType);
intent.putExtra(EXTRA_ACCOUNT, account);
intent.putExtra(EXTRA_FOLDER, folder);
intent.putExtra(EXTRA_CONVERSATION, conversation);
return intent;
}
private Cursor getUiCursor(Uri uri, String[] projection) {
Cursor c = mContext.getContentResolver().query(uri, projection, null, null, null);
if (c == null) return null;
if (c.moveToFirst()) {
return c;
} else {
c.close();
return null;
}
}
private Intent createViewConversationIntent(Message message) {
Cursor c = getUiCursor(EmailProvider.uiUri("uiaccount", message.mAccountKey),
UIProvider.ACCOUNTS_PROJECTION);
if (c == null) {
Log.w(TAG, "Can't find account for message " + message.mId);
return null;
}
com.android.mail.providers.Account acct = new com.android.mail.providers.Account(c);
c.close();
c = getUiCursor(EmailProvider.uiUri("uifolder", message.mMailboxKey),
UIProvider.FOLDERS_PROJECTION);
if (c == null) {
Log.w(TAG, "Can't find folder for message " + message.mId + ", folder " +
message.mMailboxKey);
return null;
}
Folder folder = new Folder(c);
c.close();
c = getUiCursor(EmailProvider.uiUri("uiconversation", message.mId),
UIProvider.CONVERSATION_PROJECTION);
if (c == null) {
Log.w(TAG, "Can't find conversation for message " + message.mId);
return null;
}
Conversation conv = new Conversation(c);
c.close();
return createViewConversationIntent(conv, folder, acct);
}
/**
* Returns a "new message" notification for the given account.
*
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
*/
@VisibleForTesting
Notification createNewMessageNotification(long mailboxId, long newMessageId,
int unseenMessageCount, int unreadCount) {
final Mailbox mailbox = Mailbox.restoreMailboxWithId(mContext, mailboxId);
if (mailbox == null) {
return null;
}
final Account account = Account.restoreAccountWithId(mContext, mailbox.mAccountKey);
if (account == null) {
return null;
}
// Get the latest message
final Message message = Message.restoreMessageWithId(mContext, newMessageId);
if (message == null) {
return null; // no message found???
}
String senderName = Address.toFriendly(Address.unpack(message.mFrom));
if (senderName == null) {
senderName = ""; // Happens when a message has no from.
}
final boolean multipleUnseen = unseenMessageCount > 1;
final Bitmap senderPhoto = multipleUnseen
? mGenericMultipleSenderIcon
: getSenderPhoto(message);
final SpannableString title = getNewMessageTitle(senderName, unseenMessageCount);
// TODO: add in display name on the second line for the text, once framework supports
// multiline texts.
// Show account name if an inbox; otherwise mailbox name
final String text = multipleUnseen
? ((mailbox.mType == Mailbox.TYPE_INBOX) ? account.mDisplayName :
mailbox.mDisplayName)
: message.mSubject;
final Bitmap largeIcon = senderPhoto != null ? senderPhoto : mGenericSenderIcon;
final Integer number = unreadCount > 1 ? unreadCount : null;
Intent intent = createViewConversationIntent(message);
if (intent == null) {
return null;
}
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK |
Intent.FLAG_ACTIVITY_TASK_ON_HOME);
long now = mClock.getTime();
boolean enableAudio = (now - mLastMessageNotifyTime) > MIN_SOUND_INTERVAL_MS;
final Notification.Builder builder = createBaseAccountNotificationBuilder(
mailbox.mAccountKey, title.toString(), title, text,
intent, largeIcon, number, enableAudio, false);
if (Utils.isRunningJellybeanOrLater()) {
// For a new-style notification
if (multipleUnseen) {
final Cursor messageCursor =
mContext.getContentResolver().query(ContentUris.withAppendedId(
EmailContent.MAILBOX_NOTIFICATION_URI, mailbox.mAccountKey),
EmailContent.NOTIFICATION_PROJECTION, null, null, null);
if (messageCursor != null && messageCursor.getCount() > 0) {
try {
final int maxNumDigestItems = mContext.getResources().getInteger(
R.integer.max_num_notification_digest_items);
// The body of the notification is the account name, or the label name.
builder.setSubText(text);
Notification.InboxStyle digest = new Notification.InboxStyle(builder);
digest.setBigContentTitle(title);
int numDigestItems = 0;
// We can assume that the current position of the cursor is on the
// newest message
do {
final long messageId =
messageCursor.getLong(EmailContent.ID_PROJECTION_COLUMN);
// Get the latest message
final Message digestMessage =
Message.restoreMessageWithId(mContext, messageId);
if (digestMessage != null) {
final CharSequence digestLine =
getSingleMessageInboxLine(mContext, digestMessage);
digest.addLine(digestLine);
numDigestItems++;
}
} while (numDigestItems <= maxNumDigestItems && messageCursor.moveToNext());
// We want to clear the content text in this case. The content text would
// have been set in createBaseAccountNotificationBuilder, but since the
// same string was set in as the subtext, we don't want to show a
// duplicate string.
builder.setContentText(null);
} finally {
messageCursor.close();
}
}
} else {
// The notification content will be the subject of the conversation.
builder.setContentText(getSingleMessageLittleText(mContext, message.mSubject));
// The notification subtext will be the subject of the conversation for inbox
// notifications, or will based on the the label name for user label notifications.
builder.setSubText(account.mDisplayName);
final Notification.BigTextStyle bigText = new Notification.BigTextStyle(builder);
bigText.bigText(getSingleMessageBigText(mContext, message));
}
}
mLastMessageNotifyTime = now;
return builder.getNotification();
}
/**
* Sets the bigtext for a notification for a single new conversation
* @param context
* @param message New message that triggered the notification.
* @return a {@link CharSequence} suitable for use in {@link Notification.BigTextStyle}
*/
private static CharSequence getSingleMessageInboxLine(Context context, Message message) {
final String subject = message.mSubject;
final String snippet = message.mSnippet;
final String senders = Address.toFriendly(Address.unpack(message.mFrom));
final String subjectSnippet = !TextUtils.isEmpty(subject) ? subject : snippet;
final TextAppearanceSpan notificationPrimarySpan =
new TextAppearanceSpan(context, R.style.NotificationPrimaryText);
if (TextUtils.isEmpty(senders)) {
// If the senders are empty, just use the subject/snippet.
return subjectSnippet;
}
else if (TextUtils.isEmpty(subjectSnippet)) {
// If the subject/snippet is empty, just use the senders.
final SpannableString spannableString = new SpannableString(senders);
spannableString.setSpan(notificationPrimarySpan, 0, senders.length(), 0);
return spannableString;
} else {
final String formatString = context.getResources().getString(
R.string.multiple_new_message_notification_item);
final TextAppearanceSpan notificationSecondarySpan =
new TextAppearanceSpan(context, R.style.NotificationSecondaryText);
final String instantiatedString = String.format(formatString, senders, subjectSnippet);
final SpannableString spannableString = new SpannableString(instantiatedString);
final boolean isOrderReversed = formatString.indexOf("%2$s") <
formatString.indexOf("%1$s");
final int primaryOffset =
(isOrderReversed ? instantiatedString.lastIndexOf(senders) :
instantiatedString.indexOf(senders));
final int secondaryOffset =
(isOrderReversed ? instantiatedString.lastIndexOf(subjectSnippet) :
instantiatedString.indexOf(subjectSnippet));
spannableString.setSpan(notificationPrimarySpan,
primaryOffset, primaryOffset + senders.length(), 0);
spannableString.setSpan(notificationSecondarySpan,
secondaryOffset, secondaryOffset + subjectSnippet.length(), 0);
return spannableString;
}
}
/**
* Sets the bigtext for a notification for a single new conversation
* @param context
* @param subject Subject of the new message that triggered the notification
* @return a {@link CharSequence} suitable for use in {@link Notification.ContentText}
*/
private static CharSequence getSingleMessageLittleText(Context context, String subject) {
if (subject == null) {
return null;
}
final TextAppearanceSpan notificationSubjectSpan = new TextAppearanceSpan(
context, R.style.NotificationPrimaryText);
final SpannableString spannableString = new SpannableString(subject);
spannableString.setSpan(notificationSubjectSpan, 0, subject.length(), 0);
return spannableString;
}
/**
* Sets the bigtext for a notification for a single new conversation
* @param context
* @param message New message that triggered the notification
* @return a {@link CharSequence} suitable for use in {@link Notification.BigTextStyle}
*/
private static CharSequence getSingleMessageBigText(Context context, Message message) {
final TextAppearanceSpan notificationSubjectSpan = new TextAppearanceSpan(
context, R.style.NotificationPrimaryText);
final String subject = message.mSubject;
final String snippet = message.mSnippet;
if (TextUtils.isEmpty(subject)) {
// If the subject is empty, just use the snippet.
return snippet;
}
else if (TextUtils.isEmpty(snippet)) {
// If the snippet is empty, just use the subject.
final SpannableString spannableString = new SpannableString(subject);
spannableString.setSpan(notificationSubjectSpan, 0, subject.length(), 0);
return spannableString;
} else {
final String notificationBigTextFormat = context.getResources().getString(
R.string.single_new_message_notification_big_text);
// Localizers may change the order of the parameters, look at how the format
// string is structured.
final boolean isSubjectFirst = notificationBigTextFormat.indexOf("%2$s") >
notificationBigTextFormat.indexOf("%1$s");
final String bigText = String.format(notificationBigTextFormat, subject, snippet);
final SpannableString spannableString = new SpannableString(bigText);
final int subjectOffset =
(isSubjectFirst ? bigText.indexOf(subject) : bigText.lastIndexOf(subject));
spannableString.setSpan(notificationSubjectSpan,
subjectOffset, subjectOffset + subject.length(), 0);
return spannableString;
}
}
/**
* Creates a notification title for a new message. If there is only a single message,
* show the sender name. Otherwise, show "X new messages".
*/
@VisibleForTesting
SpannableString getNewMessageTitle(String sender, int unseenCount) {
String title;
if (unseenCount > 1) {
title = String.format(
mContext.getString(R.string.notification_multiple_new_messages_fmt),
unseenCount);
} else {
title = sender;
}
return new SpannableString(title);
}
/** Returns the system's current ringer mode */
@VisibleForTesting
int getRingerMode() {
return mAudioManager.getRingerMode();
}
/** Sets up the notification's sound and vibration based upon account details. */
@VisibleForTesting
void setupSoundAndVibration(Notification.Builder builder, Account account) {
final int flags = account.mFlags;
final String ringtoneUri = account.mRingtoneUri;
final boolean vibrate = (flags & Account.FLAGS_VIBRATE_ALWAYS) != 0;
final boolean vibrateWhenSilent = (flags & Account.FLAGS_VIBRATE_WHEN_SILENT) != 0;
final boolean isRingerSilent = getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
int defaults = Notification.DEFAULT_LIGHTS;
if (vibrate || (vibrateWhenSilent && isRingerSilent)) {
defaults |= Notification.DEFAULT_VIBRATE;
}
builder.setSound((ringtoneUri == null) ? null : Uri.parse(ringtoneUri))
.setDefaults(defaults);
}
/**
* Show (or update) a notification that the given attachment could not be forwarded. This
* is a very unusual case, and perhaps we shouldn't even send a notification. For now,
* it's helpful for debugging.
*
* NOTE: DO NOT CALL THIS METHOD FROM THE UI THREAD (DATABASE ACCESS)
*/
public void showDownloadForwardFailedNotification(Attachment attachment) {
Message message = Message.restoreMessageWithId(mContext, attachment.mMessageKey);
if (message == null) return;
Mailbox mailbox = Mailbox.restoreMailboxWithId(mContext, message.mMailboxKey);
showNotification(mailbox.mAccountKey,
mContext.getString(R.string.forward_download_failed_ticker),
mContext.getString(R.string.forward_download_failed_title),
attachment.mFileName,
null,
NOTIFICATION_ID_ATTACHMENT_WARNING);
}
/**
* Returns a notification ID for login failed notifications for the given account account.
*/
private int getLoginFailedNotificationId(long accountId) {
return NOTIFICATION_ID_BASE_LOGIN_WARNING + (int)accountId;
}
/**
* 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;
final Mailbox mailbox = Mailbox.restoreMailboxOfType(mContext, account.mId,
Mailbox.TYPE_INBOX);
if (mailbox == null) return;
showNotification(mailbox.mAccountKey,
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));
}
/**
* Cancels the new message notification for a given mailbox
*/
public void cancelNewMessageNotification(long mailboxId) {
mNotificationManager.cancel(getNewMessageNotificationId(mailboxId));
}
/**
* 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);
showNotification(accountId, 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);
showNotification(accountId, 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. If tapped, the user is taken to a
* dialog asking whether he wants to update his settings.
*/
public void showSecurityNeededNotification(Account account) {
Intent intent = AccountSecurity.actionUpdateSecurityIntent(mContext, account.mId, true);
String accountName = account.getDisplayName();
String ticker =
mContext.getString(R.string.security_needed_ticker_fmt, accountName);
String title = mContext.getString(R.string.security_notification_content_update_title);
showNotification(account.mId, ticker, title, accountName, intent,
(int)(NOTIFICATION_ID_BASE_SECURITY_NEEDED + account.mId));
}
/**
* Show (or update) a security changed notification. If tapped, the user is taken to the
* account settings screen where he can view the list of enforced policies
*/
public void showSecurityChangedNotification(Account account) {
Intent intent = AccountSettings.createAccountSettingsIntent(mContext, account.mId, null);
String accountName = account.getDisplayName();
String ticker =
mContext.getString(R.string.security_changed_ticker_fmt, accountName);
String title = mContext.getString(R.string.security_notification_content_change_title);
showNotification(account.mId, ticker, title, accountName, intent,
(int)(NOTIFICATION_ID_BASE_SECURITY_CHANGED + account.mId));
}
/**
* Show (or update) a security unsupported notification. If tapped, the user is taken to the
* account settings screen where he can view the list of unsupported policies
*/
public void showSecurityUnsupportedNotification(Account account) {
Intent intent = AccountSettings.createAccountSettingsIntent(mContext, account.mId, null);
String accountName = account.getDisplayName();
String ticker =
mContext.getString(R.string.security_unsupported_ticker_fmt, accountName);
String title = mContext.getString(R.string.security_notification_content_unsupported_title);
showNotification(account.mId, ticker, title, accountName, intent,
(int)(NOTIFICATION_ID_BASE_SECURITY_NEEDED + account.mId));
}
/**
* Cancels all security needed notifications.
*/
public void cancelSecurityNeededNotification() {
EmailAsyncTask.runAsyncParallel(new Runnable() {
@Override
public void run() {
Cursor c = mContext.getContentResolver().query(Account.CONTENT_URI,
Account.ID_PROJECTION, null, null, null);
try {
while (c.moveToNext()) {
long id = c.getLong(Account.ID_PROJECTION_COLUMN);
mNotificationManager.cancel(
(int)(NOTIFICATION_ID_BASE_SECURITY_NEEDED + id));
}
}
finally {
c.close();
}
}});
}
/**
* Observer invoked whenever a message we're notifying the user about changes.
*/
private static class MessageContentObserver extends ContentObserver {
private final Context mContext;
private final long mAccountId;
public MessageContentObserver(
Handler handler, Context context, long accountId) {
super(handler);
mContext = context;
mAccountId = accountId;
}
@Override
public void onChange(boolean selfChange) {
ContentObserver observer = sInstance.mNotificationMap.get(mAccountId);
Account account = Account.restoreAccountWithId(mContext, mAccountId);
if (observer == null || account == null) {
Log.w(Logging.LOG_TAG, "Couldn't find account for changed message notification");
return;
}
ContentResolver resolver = mContext.getContentResolver();
Cursor c = resolver.query(ContentUris.withAppendedId(
EmailContent.MAILBOX_NOTIFICATION_URI, mAccountId),
EmailContent.NOTIFICATION_PROJECTION, null, null, null);
try {
while (c.moveToNext()) {
long mailboxId = c.getLong(EmailContent.NOTIFICATION_MAILBOX_ID_COLUMN);
if (mailboxId == 0) continue;
int messageCount =
c.getInt(EmailContent.NOTIFICATION_MAILBOX_MESSAGE_COUNT_COLUMN);
int unreadCount =
c.getInt(EmailContent.NOTIFICATION_MAILBOX_UNREAD_COUNT_COLUMN);
Mailbox m = Mailbox.restoreMailboxWithId(mContext, mailboxId);
long newMessageId = Utility.getFirstRowLong(mContext,
ContentUris.withAppendedId(
EmailContent.MAILBOX_MOST_RECENT_MESSAGE_URI, mailboxId),
Message.ID_COLUMN_PROJECTION, null, null, null,
Message.ID_MAILBOX_COLUMN_ID, -1L);
Log.d(Logging.LOG_TAG, "Changes to " + account.mDisplayName + "/" +
m.mDisplayName + ", count: " + messageCount + ", lastNotified: " +
m.mLastNotifiedMessageKey + ", mostRecent: " + newMessageId);
// Broadcast intent here
Intent i = new Intent(EmailBroadcastProcessorService.ACTION_NOTIFY_NEW_MAIL);
// Required by UIProvider
i.setType(EmailProvider.EMAIL_APP_MIME_TYPE);
i.putExtra(UIProvider.UpdateNotificationExtras.EXTRA_FOLDER,
Uri.parse(EmailProvider.uiUriString("uifolder", mailboxId)));
i.putExtra(UIProvider.UpdateNotificationExtras.EXTRA_ACCOUNT,
Uri.parse(EmailProvider.uiUriString("uiaccount", m.mAccountKey)));
i.putExtra(UIProvider.UpdateNotificationExtras.EXTRA_UPDATED_UNREAD_COUNT,
unreadCount);
// Required by our notification controller
i.putExtra(NEW_MAIL_MAILBOX_ID, mailboxId);
i.putExtra(NEW_MAIL_MESSAGE_ID, newMessageId);
i.putExtra(NEW_MAIL_MESSAGE_COUNT, messageCount);
i.putExtra(NEW_MAIL_UNREAD_COUNT, unreadCount);
mContext.sendOrderedBroadcast(i, null);
}
} finally {
c.close();
}
}
}
public static void notifyNewMail(Context context, Intent i) {
Log.d(Logging.LOG_TAG, "Sending notification to system...");
NotificationController nc = NotificationController.getInstance(context);
ContentResolver resolver = context.getContentResolver();
long mailboxId = i.getLongExtra(NEW_MAIL_MAILBOX_ID, -1);
long newMessageId = i.getLongExtra(NEW_MAIL_MESSAGE_ID, -1);
int messageCount = i.getIntExtra(NEW_MAIL_MESSAGE_COUNT, 0);
int unreadCount = i.getIntExtra(NEW_MAIL_UNREAD_COUNT, 0);
Notification n = nc.createNewMessageNotification(mailboxId, newMessageId,
messageCount, unreadCount);
if (n != null) {
// Make the notification visible
nc.mNotificationManager.notify(nc.getNewMessageNotificationId(mailboxId), n);
}
// Save away the new values
ContentValues cv = new ContentValues();
cv.put(MailboxColumns.LAST_NOTIFIED_MESSAGE_KEY, newMessageId);
cv.put(MailboxColumns.LAST_NOTIFIED_MESSAGE_COUNT, messageCount);
resolver.update(ContentUris.withAppendedId(Mailbox.CONTENT_URI, mailboxId), cv,
null, null);
}
/**
* 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);
}
}
}
/**
* 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;
}
}
}