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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import org.mozilla.gecko.gfx.BitmapUtils;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.net.Uri;
import android.util.Log;
import java.util.concurrent.ConcurrentHashMap;
public class NotificationHandler {
private final ConcurrentHashMap<Integer, Notification>
mNotifications = new ConcurrentHashMap<Integer, Notification>();
private final Context mContext;
private final NotificationManager mNotificationManager;
/**
* Notification associated with this service's foreground state.
*
* {@link android.app.Service#startForeground(int, android.app.Notification)}
* associates the foreground with exactly one notification from the service.
* To keep Fennec alive during downloads (and to make sure it can be killed
* once downloads are complete), we make sure that the foreground is always
* associated with an active progress notification if and only if at least
* one download is in progress.
*/
private Notification mForegroundNotification;
public NotificationHandler(Context context) {
mContext = context;
mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
}
/**
* Adds a notification.
*
* @param notificationID the unique ID of the notification
* @param aImageUrl URL of the image to use
* @param aAlertTitle title of the notification
* @param aAlertText text of the notification
* @param contentIntent Intent used when the notification is clicked
* @param clearIntent Intent used when the notification is removed
*/
public void add(int notificationID, String aImageUrl, String aAlertTitle,
String aAlertText, PendingIntent contentIntent) {
// Remove the old notification with the same ID, if any
remove(notificationID);
Uri imageUri = Uri.parse(aImageUrl);
int icon = BitmapUtils.getResource(imageUri, R.drawable.ic_status_logo);
final AlertNotification notification = new AlertNotification(mContext, notificationID,
icon, aAlertTitle, aAlertText, System.currentTimeMillis(), imageUri);
notification.setLatestEventInfo(mContext, aAlertTitle, aAlertText, contentIntent);
mNotificationManager.notify(notificationID, notification);
mNotifications.put(notificationID, notification);
}
/**
* Adds a notification.
*
* @param id the unique ID of the notification
* @param aNotification the Notification to add
*/
public void add(int id, Notification notification) {
mNotificationManager.notify(id, notification);
mNotifications.put(id, notification);
if (mForegroundNotification == null && isOngoing(notification)) {
setForegroundNotification(id, notification);
}
}
/**
* Updates a notification.
*
* @param notificationID ID of existing notification
* @param aProgress progress of item being updated
* @param aProgressMax max progress of item being updated
* @param aAlertText text of the notification
*/
public void update(int notificationID, long aProgress, long aProgressMax, String aAlertText) {
final Notification notification = mNotifications.get(notificationID);
if (notification == null) {
return;
}
if (notification instanceof AlertNotification) {
AlertNotification alert = (AlertNotification)notification;
alert.updateProgress(aAlertText, aProgress, aProgressMax);
}
if (mForegroundNotification == null && isOngoing(notification)) {
setForegroundNotification(notificationID, notification);
}
}
/**
* Removes a notification.
*
* @param notificationID ID of existing notification
*/
public void remove(int notificationID) {
final Notification notification = mNotifications.remove(notificationID);
if (notification != null) {
updateForegroundNotification(notificationID, notification);
}
mNotificationManager.cancel(notificationID);
}
/**
* Determines whether the service is done.
*
* The service is considered finished when all notifications have been
* removed.
*
* @return whether all notifications have been removed
*/
public boolean isDone() {
return mNotifications.isEmpty();
}
/**
* Determines whether a notification should hold a foreground service to keep Gecko alive
*
* @param notificationID the id of the notification to check
* @return whether the notification is ongoing
*/
public boolean isOngoing(int notificationID) {
final Notification notification = mNotifications.get(notificationID);
return isOngoing(notification);
}
/**
* Determines whether a notification should hold a foreground service to keep Gecko alive
*
* @param notification the notification to check
* @return whether the notification is ongoing
*/
public boolean isOngoing(Notification notification) {
if (notification != null && (isProgressStyle(notification) || ((notification.flags & Notification.FLAG_ONGOING_EVENT) > 0))) {
return true;
}
return false;
}
/**
* Helper method to determines whether a notification is an AlertNotification that is showing progress
* This method will be deprecated when AlertNotifications are removed (bug 893289).
*
* @param notification the notification to check
* @return whether the notification is an AlertNotification showing progress.
*/
private boolean isProgressStyle(Notification notification) {
if (notification != null && notification instanceof AlertNotification) {
return ((AlertNotification)notification).isProgressStyle();
}
return false;
}
protected void setForegroundNotification(int id, Notification notification) {
mForegroundNotification = notification;
}
private void updateForegroundNotification(int id, Notification oldNotification) {
if (mForegroundNotification == oldNotification) {
// If we're removing the notification associated with the
// foreground, we need to pick another active notification to act
// as the foreground notification.
Notification foregroundNotification = null;
for (final Notification notification : mNotifications.values()) {
if (isOngoing(notification)) {
foregroundNotification = notification;
break;
}
}
setForegroundNotification(id, foregroundNotification);
}
}
}
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