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/* -*- 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"

[scriptable, uuid(160e87e1-d57d-456b-b6ea-17826f6ea7a8)]
interface nsIAlertsService : nsISupports
{
   /**
    * Displays a sliding notification window.
    *
    * @param imageUrl       A URL identifying the image to put in the alert.
    * @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 OS X with Growl and Android.
    *                       On OS X with Growl, users can disable notifications
    *                       with a given name. 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.
    * @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
    *             "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);

   /**
    * 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);
};

[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);
};