content/svg/content/src/nsSVGSwitchElement.h
author Robert Longson <longsonr@gmail.com>
Sat, 31 Dec 2011 09:44:03 +0000
changeset 84835 883815d2edb2e7104f7c0c7cf1164db083b2b4b8
parent 78441 e7854b4d29ba905ae3994f821b160c989bac4260
child 86687 e31b47c574bff4c89cff38855b40a56865092388
child 109091 df210db11b95aadf4b23fc6ba6a3cfa26e40b820
permissions -rw-r--r--
Bug 607854 - implement SVGTests interface. r=jwatt

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 *   Robert Longson <longsonr@gmail.com> (original author)
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#ifndef __NS_SVGSWITCHELEMENT_H__
#define __NS_SVGSWITCHELEMENT_H__

#include "nsSVGGraphicElement.h"
#include "nsIDOMSVGSwitchElement.h"
#include "DOMSVGTests.h"

typedef nsSVGGraphicElement nsSVGSwitchElementBase;

class nsSVGSwitchElement : public nsSVGSwitchElementBase,
                           public nsIDOMSVGSwitchElement,
                           public DOMSVGTests
{
  friend class nsSVGSwitchFrame;
protected:
  friend nsresult NS_NewSVGSwitchElement(nsIContent **aResult,
                                         already_AddRefed<nsINodeInfo> aNodeInfo);
  nsSVGSwitchElement(already_AddRefed<nsINodeInfo> aNodeInfo);

public:
  nsIContent * GetActiveChild() const
  { return mActiveChild; }
  void MaybeInvalidate();
    
  // interfaces:

  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsSVGSwitchElement,
                                           nsSVGSwitchElementBase)
  NS_DECL_NSIDOMSVGSWITCHELEMENT

  // xxx I wish we could use virtual inheritance
  NS_FORWARD_NSIDOMNODE(nsSVGSwitchElementBase::)
  NS_FORWARD_NSIDOMELEMENT(nsSVGSwitchElementBase::)
  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGSwitchElementBase::)

  // nsINode
  virtual nsresult InsertChildAt(nsIContent* aKid, PRUint32 aIndex,
                                 bool aNotify);
  virtual nsresult RemoveChildAt(PRUint32 aIndex, bool aNotify);

  // nsIContent
  NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const;

  virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;

  virtual nsXPCClassInfo* GetClassInfo();
private:
  void UpdateActiveChild()
  { mActiveChild = FindActiveChild(); }
  nsIContent* FindActiveChild() const;

  // only this child will be displayed
  nsCOMPtr<nsIContent> mActiveChild;
};

#endif // __NS_SVGSWITCHELEMENT_H__