/* -*- Mode: C++; 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"

/**
 * Due to the historical reason, this listener interface says "document state",
 * but this listener listens to HTML editor state.
 */
[scriptable, uuid(050cdc00-3b8e-11d3-9ce4-a458f454fcbc)]
interface nsIDocumentStateListener : nsISupports
{
  /**
   * NotifyDocumentWillBeDestroyed() is called when HTML editor instance is
   * being destroyed.  Note that related objects may have already gone when
   * this is called because that may cause destroying HTML editor.
   */
  [can_run_script]
  void NotifyDocumentWillBeDestroyed();

  /**
   * NotifyDocumentStateChanged() is called when dirty state of HTML editor
   * is changed.
   *
   * @param aNowDirty   if true, this is called when the HTML editor becomes
   *                    dirty.  Otherwise, called when it becomes not dirty.
   */
  [can_run_script]
  void NotifyDocumentStateChanged(in boolean aNowDirty);
};