/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 nsMathMLmactionFrame_h___

#define nsMathMLmactionFrame_h___

#include "nsCOMPtr.h"

#include "nsMathMLSelectedFrame.h"

#include "nsIDOMEventListener.h"

#include "mozilla/Attributes.h"

//

// <maction> -- bind actions to a subexpression

//

class nsMathMLmactionFrame final : public nsMathMLSelectedFrame

{

public:

  NS_DECL_FRAMEARENA_HELPERS(nsMathMLmactionFrame)

  friend nsIFrame* NS_NewMathMLmactionFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);

  virtual void

  Init(nsIContent*       aContent,

       nsContainerFrame* aParent,

       nsIFrame*         aPrevInFlow) override;

  virtual void

  SetInitialChildList(ChildListID     aListID,

                      nsFrameList&    aChildList) override;

  virtual nsresult

  ChildListChanged(int32_t aModType) override;

  virtual nsresult

  AttributeChanged(int32_t  aNameSpaceID,

                   nsAtom* aAttribute,

                   int32_t  aModType) override;

private:

  void MouseClick();

  void MouseOver();

  void MouseOut();

  class MouseListener final : public nsIDOMEventListener

  {

  private:

    ~MouseListener() {}

  public:

    NS_DECL_ISUPPORTS

    NS_DECL_NSIDOMEVENTLISTENER

    explicit MouseListener(nsMathMLmactionFrame* aOwner) : mOwner(aOwner) { }

    nsMathMLmactionFrame* mOwner;

  };

protected:

  explicit nsMathMLmactionFrame(ComputedStyle* aStyle) :

    nsMathMLSelectedFrame(aStyle, kClassID) {}

  virtual ~nsMathMLmactionFrame();

private:

  int32_t         mActionType;

  int32_t         mChildCount;

  int32_t         mSelection;

  RefPtr<MouseListener> mListener;

  // helper to return the frame for the attribute selection="number"

  nsIFrame*

  GetSelectedFrame() override;

};

#endif /* nsMathMLmactionFrame_h___ */