/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
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 * either of 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
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsGfxButtonControlFrame_h___
#define nsGfxButtonControlFrame_h___

#include "nsFormControlFrame.h"
#include "nsHTMLButtonControlFrame.h"
#include "nsCOMPtr.h"
#include "nsIAnonymousContentCreator.h"

#ifdef ACCESSIBILITY
class nsIAccessible;
#endif

// Class which implements the input[type=button, reset, submit] and
// browse button for input[type=file].
// The label for button is specified through generated content
// in the ua.css file.

class nsGfxButtonControlFrame : public nsHTMLButtonControlFrame,
                                public nsIAnonymousContentCreator
{
public:
  nsGfxButtonControlFrame(nsStyleContext* aContext);

     //nsIFrame
  NS_IMETHOD Reflow(nsPresContext*          aCX,
                    nsHTMLReflowMetrics&     aDesiredSize,
                    const nsHTMLReflowState& aReflowState,
                    nsReflowStatus&          aStatus);

  NS_IMETHOD HandleEvent(nsPresContext* aPresContext, 
                         nsGUIEvent* aEvent,
                         nsEventStatus* aEventStatus);

 
#ifdef ACCESSIBILITY
  NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#endif

  virtual nsIAtom* GetType() const;

#ifdef DEBUG
  NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
  NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);

 
  // nsIAnonymousContentCreator
  NS_IMETHOD CreateAnonymousContent(nsPresContext* aPresContext,
                                    nsISupportsArray& aChildList);
  NS_IMETHOD CreateFrameFor(nsPresContext*   aPresContext,
                            nsIContent *      aContent,
                            nsIFrame**        aFrame);

  NS_IMETHOD AttributeChanged(PRInt32         aNameSpaceID,
                              nsIAtom*        aAttribute,
                              PRInt32         aModType);

  virtual PRBool IsLeaf() const;

  /**
   * Set the suggested size of the button.
   * @note This is NOT a virtual function, it will be called 
   * directly on an instance of this class.
   * @param aSize The suggested size.
   */
  void SetSuggestedSize(const nsSize& aSize);
  
protected:
  nsresult GetDefaultLabel(nsXPIDLString& aLabel);

  nsresult GetLabel(nsXPIDLString& aLabel);

  PRBool IsFileBrowseButton(PRInt32 type); // Browse button of file input

private:
  NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
  NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }

  nsSize mSuggestedSize;
  nsCOMPtr<nsIContent> mTextContent;
};


#endif