/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */

#include "nsISupports.idl"
#include "nsIObserver.idl"

interface nsIPrincipal;

[scriptable, uuid(9d0284bf-db40-42da-8f0d-c2769dbde7aa)]
interface nsIAlertsService : nsISupports
{
  /**
   * Displays a sliding notification window.
   *
   * @param imageUrl       A URL identifying the image to put in the alert.
   *                       The OS X implemenation limits the amount of time it
   *                       will wait for an icon to load to six seconds. After
   *                       that time the alert will show with no icon.
   * @param title          The title for the alert.
   * @param text           The contents of the alert.
   * @param textClickable  If true, causes the alert text to look like a link
   *                       and notifies the listener when user attempts to
   *                       click the alert text.
   * @param cookie         A blind cookie the alert will pass back to the
   *                       consumer during the alert listener callbacks.
   * @param alertListener  Used for callbacks. May be null if the caller
   *                       doesn't care about callbacks.
   * @param name           The name of the notification. This is currently only
   *                       used on Android and OS X. On Android the name is
   *                       hashed and used as a notification ID. Notifications
   *                       will replace previous notifications with the same name.
   * @param dir            Bidi override for the title. Valid values are
   *                       "auto", "ltr" or "rtl". Only available on supported
   *                       platforms.
   * @param lang           Language of title and text of the alert. Only available
   *                       on supported platforms.
   * @param inPrivateBrowsing If set to true, imageUrl will be loaded in private
   *                          browsing mode.
   * @throws NS_ERROR_NOT_AVAILABLE If the notification cannot be displayed.
   *
   * The following arguments will be passed to the alertListener's observe()
   * method:
   *   subject - null
   *   topic   - "alertfinished" when the alert goes away
   *             "alertdisablecallback" when alerts should be disabled for the principal
   *             "alertsettingscallback" when alert settings should be opened
   *             "alertclickcallback" when the text is clicked
   *             "alertshow" when the alert is shown
   *   data    - the value of the cookie parameter passed to showAlertNotification.
   *
   * @note Depending on current circumstances (if the user's in a fullscreen
   *       application, for instance), the alert might not be displayed at all.
   *       In that case, if an alert listener is passed in it will receive the
   *       "alertfinished" notification immediately.
   */
  void showAlertNotification(in AString  imageUrl,
                             in AString  title,
                             in AString  text,
                             [optional] in boolean textClickable,
                             [optional] in AString cookie,
                             [optional] in nsIObserver alertListener,
                             [optional] in AString name,
                             [optional] in AString dir,
                             [optional] in AString lang,
                             [optional] in AString data,
                             [optional] in nsIPrincipal principal,
                             [optional] in boolean inPrivateBrowsing);

  /**
   * Close alerts created by the service.
   *
   * @param name           The name of the notification to close. If no name
   *                       is provided then only a notification created with
   *                       no name (if any) will be closed.
   */
  void closeAlert([optional] in AString name,
                  [optional] in nsIPrincipal principal);

};

[scriptable, uuid(c5d63e3a-259d-45a8-b964-8377967cb4d2)]
interface nsIAlertsDoNotDisturb : nsISupports
{
  /**
   * Toggles a manual Do Not Disturb mode for the service to reduce the amount
   * of disruption that alerts cause the user.
   * This may mean only displaying them in a notification tray/center or not
   * displaying them at all. If a system backend already supports a similar
   * feature controlled by the user, enabling this may not have any impact on
   * code to show an alert. e.g. on OS X, the system will take care not
   * disrupting a user if we simply create a notification like usual.
   */
  attribute bool manualDoNotDisturb;
};

[scriptable, uuid(df1bd4b0-3a8c-40e6-806a-203f38b0bd9f)]
interface nsIAlertsProgressListener : nsISupports
{
  /**
   * Called to notify the alert service that progress has occurred for the
   * given notification previously displayed with showAlertNotification().
   *
   * @param name         The name of the notification displaying the
   *                     progress. On Android the name is hashed and used
   *                     as a notification ID.
   * @param progress     Numeric value in the range 0 to progressMax
   *                     indicating the current progress.
   * @param progressMax  Numeric value indicating the maximum progress.
   * @param text         The contents of the alert. If not provided,
   *                     the percentage will be displayed.
   */
  void onProgress(in AString name,
                  in long long progress,
                  in long long progressMax,
                  [optional] in AString text);

  /**
   * Called to cancel and hide the given notification previously displayed
   * with showAlertNotification().
   *
   * @param name         The name of the notification.
   */
  void onCancel(in AString name);
};