/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 *
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 * 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
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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/*
 * interface for rendering objects for replaced elements containing a
 * document, such as <frame>, <iframe>, and some <object>s
 */

#ifndef nsIFrameFrame_h___
#define nsIFrameFrame_h___

class nsIDocShell;
class nsIView;

class nsIFrameFrame
{
public:
  NS_DECL_QUERYFRAME_TARGET(nsIFrameFrame)

  NS_IMETHOD GetDocShell(nsIDocShell **aDocShell) = 0;

  /**
   * Only allowed to fail if the other frame is not the same type as
   * this one or if one of the frames has no docshell.  Don't call
   * EndSwapDocShells() unless BeginSwapDocShells() succeeds.
   */
  NS_IMETHOD BeginSwapDocShells(nsIFrame* aOther) = 0;
  virtual void EndSwapDocShells(nsIFrame* aOther) = 0;

  /**
   * The frameloader informs us what kind of widget to create during Show()
   */
  virtual nsIView* CreateViewAndWidget(nsContentType aContentType) = 0;

  virtual nsIFrame* GetFrame() = 0;
};

#endif
