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nsSVGSymbolElement.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 the Mozilla SVG project.
 *
 * The Initial Developer of the Original Code is IBM Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsIDOMSVGSymbolElement.h"
#include "nsSVGStylableElement.h"
#include "nsSVGAnimatedPreserveAspectRatio.h"
#include "nsSVGPreserveAspectRatio.h"
#include "nsIDOMSVGRect.h"
#include "nsIDOMSVGLength.h"
#include "nsIDOMSVGFitToViewBox.h"
#include "nsSVGRect.h"
#include "nsSVGAnimatedRect.h"
#include "nsSVGAtoms.h"

typedef nsSVGStylableElement nsSVGSymbolElementBase;

class nsSVGSymbolElement : public nsSVGSymbolElementBase,
                           public nsIDOMSVGFitToViewBox,
                           public nsIDOMSVGSymbolElement
{
protected:
  friend nsresult NS_NewSVGSymbolElement(nsIContent **aResult,
                                         nsINodeInfo *aNodeInfo);
  nsSVGSymbolElement(nsINodeInfo* aNodeInfo);
  virtual ~nsSVGSymbolElement();
  nsresult Init();

public:
  // interfaces:

  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIDOMSVGSYMBOLELEMENT
  NS_DECL_NSIDOMSVGFITTOVIEWBOX

  // xxx I wish we could use virtual inheritance
  NS_FORWARD_NSIDOMNODE_NO_CLONENODE(nsSVGElement::)
  NS_FORWARD_NSIDOMELEMENT(nsSVGElement::)
  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGElement::)

  // nsIContent interface
  NS_IMETHODIMP_(PRBool) IsAttributeMapped(const nsIAtom* name) const;

protected:

  nsCOMPtr<nsIDOMSVGAnimatedRect> mViewBox;
  nsCOMPtr<nsIDOMSVGAnimatedPreserveAspectRatio> mPreserveAspectRatio;
};

NS_IMPL_NS_NEW_SVG_ELEMENT(Symbol)

//----------------------------------------------------------------------
// nsISupports methods

NS_IMPL_ADDREF_INHERITED(nsSVGSymbolElement,nsSVGSymbolElementBase)
NS_IMPL_RELEASE_INHERITED(nsSVGSymbolElement,nsSVGSymbolElementBase)

NS_INTERFACE_MAP_BEGIN(nsSVGSymbolElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMNode)
  NS_INTERFACE_MAP_ENTRY(nsIDOMElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGFitToViewBox)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGSymbolElement)
  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(SVGSymbolElement)
NS_INTERFACE_MAP_END_INHERITING(nsSVGSymbolElementBase)

//----------------------------------------------------------------------
// Implementation

nsSVGSymbolElement::nsSVGSymbolElement(nsINodeInfo *aNodeInfo)
  : nsSVGSymbolElementBase(aNodeInfo)
{
}

nsSVGSymbolElement::~nsSVGSymbolElement()
{
}

nsresult
nsSVGSymbolElement::Init()
{
  nsresult rv = nsSVGSymbolElementBase::Init();
  NS_ENSURE_SUCCESS(rv,rv);


  // DOM property: viewBox
  {
    nsCOMPtr<nsIDOMSVGRect> viewbox;
    rv = NS_NewSVGRect(getter_AddRefs(viewbox));
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedRect(getter_AddRefs(mViewBox), viewbox);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::viewBox, mViewBox);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  // DOM property: preserveAspectRatio
  {
    nsCOMPtr<nsIDOMSVGPreserveAspectRatio> preserveAspectRatio;
    rv = NS_NewSVGPreserveAspectRatio(getter_AddRefs(preserveAspectRatio));
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedPreserveAspectRatio(
                                          getter_AddRefs(mPreserveAspectRatio),
                                          preserveAspectRatio);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::preserveAspectRatio,
                           mPreserveAspectRatio);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  return NS_OK;
}

//----------------------------------------------------------------------
// nsIDOMNode methods

NS_IMPL_DOM_CLONENODE_WITH_INIT(nsSVGSymbolElement)

//----------------------------------------------------------------------
// nsIDOMSVGFitToViewBox methods

/* readonly attribute nsIDOMSVGAnimatedRect viewBox; */
NS_IMETHODIMP nsSVGSymbolElement::GetViewBox(nsIDOMSVGAnimatedRect * *aViewBox)
{
  *aViewBox = mViewBox;
  NS_ADDREF(*aViewBox);
  return NS_OK;
}

/* readonly attribute nsIDOMSVGAnimatedPreserveAspectRatio preserveAspectRatio; */
NS_IMETHODIMP
nsSVGSymbolElement::GetPreserveAspectRatio(nsIDOMSVGAnimatedPreserveAspectRatio * *aPreserveAspectRatio)
{
  *aPreserveAspectRatio = mPreserveAspectRatio;
  NS_ADDREF(*aPreserveAspectRatio);
  return NS_OK;
}

//----------------------------------------------------------------------
// nsIContent methods

NS_IMETHODIMP_(PRBool)
nsSVGSymbolElement::IsAttributeMapped(const nsIAtom* name) const
{
  static const MappedAttributeEntry* const map[] = {
    sViewportsMap,
  };
  
  return FindAttributeDependence(name, map, NS_ARRAY_LENGTH(map)) ||
    nsSVGSymbolElementBase::IsAttributeMapped(name);
}

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