gecko-dev/layout/forms/nsGfxButtonControlFrame.h

/* -*- 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/. */

#ifndef nsGfxButtonControlFrame_h___
#define nsGfxButtonControlFrame_h___

#include "mozilla/Attributes.h"
#include "nsFormControlFrame.h"
#include "nsHTMLButtonControlFrame.h"
#include "nsCOMPtr.h"
#include "nsIAnonymousContentCreator.h"

// 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:
  NS_DECL_FRAMEARENA_HELPERS

  nsGfxButtonControlFrame(nsStyleContext* aContext);

  virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;

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

  virtual nsIAtom* GetType() const;

#ifdef DEBUG
  NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
#endif

  NS_DECL_QUERYFRAME

  // nsIAnonymousContentCreator
  virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
  virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
                                        uint32_t aFilter) MOZ_OVERRIDE;
  virtual nsIFrame* CreateFrameFor(nsIContent* aContent) MOZ_OVERRIDE;

  // nsIFormControlFrame
  virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const MOZ_OVERRIDE; 


  NS_IMETHOD AttributeChanged(int32_t         aNameSpaceID,
                              nsIAtom*        aAttribute,
                              int32_t         aModType);

  virtual bool IsLeaf() const;

  virtual nsIFrame* GetContentInsertionFrame() MOZ_OVERRIDE;

protected:
  nsresult GetDefaultLabel(nsXPIDLString& aLabel) const;

  nsresult GetLabel(nsXPIDLString& aLabel);

  bool IsFileBrowseButton(int32_t type) const; // Browse button of file input

  virtual bool IsInput() MOZ_OVERRIDE { return true; }
private:
  nsCOMPtr<nsIContent> mTextContent;
};


#endif