/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Corporation
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

interface nsIDOMWindow;
interface nsIDocShell;
interface nsIContent;

[scriptable, function, uuid(938fcb95-3d63-46be-aa72-94d08fd3b418)]
interface nsIFrameMessageListener : nsISupports
{
  /**
   * This is for JS only.
   * receiveMessage is called with one parameter, which has the following
   * properties:
   *   {
   *     name:    %message name%,
   *     sync:    %true or false%.
   *     json:    %json object or null%,
   *     objects: %array of handles or null, always null if sync is false%
   *   }
   * @note objects property isn't implemented yet.
   *
   * if the message is synchronous, possible return value is sent back
   * as JSON.
   *
   * When the listener is called, 'this' value is the target of the message.
   */
  void receiveMessage();
};

[scriptable, uuid(a27d8fcd-8de9-4a51-87f4-2b83bba901d5)]
interface nsIFrameMessageManager : nsISupports
{
  void addMessageListener(in AString aMessage, in nsIFrameMessageListener aListener);
  void removeMessageListener(in AString aMessage, in nsIFrameMessageListener aListener);
  [implicit_jscontext,optional_argc]
  void sendAsyncMessage([optional] in AString messageName, [optional] in jsval obj);
};

[scriptable, uuid(21e5d940-d457-4c0f-bb5e-35c159ed19e3)]
interface nsISyncMessageSender : nsIFrameMessageManager
{
  /**
   * Returns an array of JSON objects.
   */
  [implicit_jscontext,optional_argc]
  jsval sendSyncMessage([optional] in AString messageName, [optional] in jsval obj);
};

[scriptable, uuid(78a1d024-60e3-4b7b-98cd-4c6b84b4f060)]
interface nsIContentFrameMessageManager : nsISyncMessageSender
{
  /**
   * The current top level window in the frame or null.
   */
  readonly attribute nsIDOMWindow content;

  /**
   * The top level docshell or null.
   */
  readonly attribute nsIDocShell docShell;

  /**
   * Print a string to stdout.
   */
  void dump(in DOMString aStr);

  /**
   * If leak detection is enabled, print a note to the leak log that this
   * process will intentionally crash.
   */
  void privateNoteIntentionalCrash();

   /**
    * Ascii base64 data to binary data and vice versa
    */
   DOMString atob(in DOMString aAsciiString);
   DOMString btoa(in DOMString aBase64Data);
};

[uuid(1f7af930-a232-4a84-a049-73eaa45f2db5)]
interface nsIInProcessContentFrameMessageManager : nsIContentFrameMessageManager
{
  [notxpcom] nsIContent getOwnerContent();
};

[scriptable, uuid(e91b0939-a74a-4c4f-8cfd-17dd42e8642a)]
interface nsITreeItemFrameMessageManager : nsIFrameMessageManager
{
  readonly attribute unsigned long childCount;
  nsITreeItemFrameMessageManager getChildAt(in unsigned long aIndex);
};

[scriptable, uuid(14e1f147-793d-4788-bbbb-ae806ecdddbb)]
interface nsIChromeFrameMessageManager : nsITreeItemFrameMessageManager
{
  /**
   * Load a script in the (remote) frame. aURL must be the absolute URL.
   * data: URLs are also supported. For example data:,dump("foo\n");
   * If aAllowDelayedLoad is true, script will be loaded when the
   * remote frame becomes available. Otherwise the script will be loaded
   * only if the frame is already available.
   */
  void loadFrameScript(in AString aURL, in boolean aAllowDelayedLoad);

  /**
   * Removes aURL from the list of scripts which support delayed load.
   */
  void removeDelayedFrameScript(in AString aURL);
};

