/* -*- 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
 * Crocodile Clips Ltd..
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
 *
 * 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 "nsSVGGraphicElement.h"
#include "nsSVGAtoms.h"
#include "nsIDOMSVGForeignObjectElem.h"
#include "nsSVGLength.h"
#include "nsSVGAnimatedLength.h"
#include "nsCOMPtr.h"
#include "nsISVGSVGElement.h"
#include "nsSVGCoordCtxProvider.h"

typedef nsSVGGraphicElement nsSVGForeignObjectElementBase;

class nsSVGForeignObjectElement : public nsSVGForeignObjectElementBase,
                                  public nsIDOMSVGForeignObjectElement
{
protected:
  friend nsresult NS_NewSVGForeignObjectElement(nsIContent **aResult,
                                                nsINodeInfo *aNodeInfo);
  nsSVGForeignObjectElement(nsINodeInfo *aNodeInfo);
  virtual ~nsSVGForeignObjectElement();
  nsresult Init();

public:
  // interfaces:
  
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIDOMSVGFOREIGNOBJECTELEMENT

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

  // nsISVGContent specializations:
  virtual void ParentChainChanged();

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

protected:
  
  nsCOMPtr<nsIDOMSVGAnimatedLength> mX;
  nsCOMPtr<nsIDOMSVGAnimatedLength> mY;
  nsCOMPtr<nsIDOMSVGAnimatedLength> mWidth;
  nsCOMPtr<nsIDOMSVGAnimatedLength> mHeight;
};


NS_IMPL_NS_NEW_SVG_ELEMENT(ForeignObject)


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

NS_IMPL_ADDREF_INHERITED(nsSVGForeignObjectElement,nsSVGForeignObjectElementBase)
NS_IMPL_RELEASE_INHERITED(nsSVGForeignObjectElement,nsSVGForeignObjectElementBase)

NS_INTERFACE_MAP_BEGIN(nsSVGForeignObjectElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMNode)
  NS_INTERFACE_MAP_ENTRY(nsIDOMElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGElement)
  NS_INTERFACE_MAP_ENTRY(nsIDOMSVGForeignObjectElement)
  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(SVGForeignObjectElement)
NS_INTERFACE_MAP_END_INHERITING(nsSVGForeignObjectElementBase)

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

nsSVGForeignObjectElement::nsSVGForeignObjectElement(nsINodeInfo *aNodeInfo)
  : nsSVGForeignObjectElementBase(aNodeInfo)
{

}

nsSVGForeignObjectElement::~nsSVGForeignObjectElement()
{
}

  
nsresult
nsSVGForeignObjectElement::Init()
{
  nsresult rv = nsSVGForeignObjectElementBase::Init();
  NS_ENSURE_SUCCESS(rv,rv);

  // Create mapped properties:
  

  // DOM property: x ,  #IMPLIED attrib: x
  {
    nsCOMPtr<nsISVGLength> length;
    rv = NS_NewSVGLength(getter_AddRefs(length),
                         0.0f);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedLength(getter_AddRefs(mX), length);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::x, mX);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  // DOM property: y ,  #IMPLIED attrib: y
  {
    nsCOMPtr<nsISVGLength> length;
    rv = NS_NewSVGLength(getter_AddRefs(length),
                         0.0f);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedLength(getter_AddRefs(mY), length);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::y, mY);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  // DOM property: width ,  #REQUIRED  attrib: width
  // XXX: enforce requiredness
  {
    nsCOMPtr<nsISVGLength> length;
    rv = NS_NewSVGLength(getter_AddRefs(length),
                         100.0f);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedLength(getter_AddRefs(mWidth), length);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::width, mWidth);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  // DOM property: height ,  #REQUIRED  attrib: height
  // XXX: enforce requiredness
  {
    nsCOMPtr<nsISVGLength> length;
    rv = NS_NewSVGLength(getter_AddRefs(length),
                         100.0f);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = NS_NewSVGAnimatedLength(getter_AddRefs(mHeight), length);
    NS_ENSURE_SUCCESS(rv,rv);
    rv = AddMappedSVGValue(nsSVGAtoms::height, mHeight);
    NS_ENSURE_SUCCESS(rv,rv);
  }

  return rv;
}

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


NS_IMPL_DOM_CLONENODE_WITH_INIT(nsSVGForeignObjectElement)


//----------------------------------------------------------------------
// nsIDOMSVGForeignObjectElement methods:

/* readonly attribute nsIDOMSVGAnimatedLength x; */
NS_IMETHODIMP nsSVGForeignObjectElement::GetX(nsIDOMSVGAnimatedLength * *aX)
{
  *aX = mX;
  NS_IF_ADDREF(*aX);
  return NS_OK;
}

/* readonly attribute nsIDOMSVGAnimatedLength y; */
NS_IMETHODIMP nsSVGForeignObjectElement::GetY(nsIDOMSVGAnimatedLength * *aY)
{
  *aY = mY;
  NS_IF_ADDREF(*aY);
  return NS_OK;
}

/* readonly attribute nsIDOMSVGAnimatedLength width; */
NS_IMETHODIMP nsSVGForeignObjectElement::GetWidth(nsIDOMSVGAnimatedLength * *aWidth)
{
  *aWidth = mWidth;
  NS_IF_ADDREF(*aWidth);
  return NS_OK;
}

/* readonly attribute nsIDOMSVGAnimatedLength height; */
NS_IMETHODIMP nsSVGForeignObjectElement::GetHeight(nsIDOMSVGAnimatedLength * *aHeight)
{
  *aHeight = mHeight;
  NS_IF_ADDREF(*aHeight);
  return NS_OK;
}

//----------------------------------------------------------------------
// nsISVGContent methods

void nsSVGForeignObjectElement::ParentChainChanged()
{
  // set new context information on our length-properties:
  
  nsCOMPtr<nsIDOMSVGSVGElement> dom_elem;
  GetOwnerSVGElement(getter_AddRefs(dom_elem));
  if (!dom_elem) return;

  nsCOMPtr<nsSVGCoordCtxProvider> ctx = do_QueryInterface(dom_elem);
  NS_ASSERTION(ctx, "<svg> element missing interface");

  // x:
  {
    nsCOMPtr<nsIDOMSVGLength> dom_length;
    mX->GetAnimVal(getter_AddRefs(dom_length));
    nsCOMPtr<nsISVGLength> length = do_QueryInterface(dom_length);
    NS_ASSERTION(length, "svg length missing interface");

    length->SetContext(nsRefPtr<nsSVGCoordCtx>(ctx->GetContextX()));
  }

  // y:
  {
    nsCOMPtr<nsIDOMSVGLength> dom_length;
    mY->GetAnimVal(getter_AddRefs(dom_length));
    nsCOMPtr<nsISVGLength> length = do_QueryInterface(dom_length);
    NS_ASSERTION(length, "svg length missing interface");
    
    length->SetContext(nsRefPtr<nsSVGCoordCtx>(ctx->GetContextY()));
  }

  // width:
  {
    nsCOMPtr<nsIDOMSVGLength> dom_length;
    mWidth->GetAnimVal(getter_AddRefs(dom_length));
    nsCOMPtr<nsISVGLength> length = do_QueryInterface(dom_length);
    NS_ASSERTION(length, "svg length missing interface");
    
    length->SetContext(nsRefPtr<nsSVGCoordCtx>(ctx->GetContextX()));
  }

  // height:
  {
    nsCOMPtr<nsIDOMSVGLength> dom_length;
    mHeight->GetAnimVal(getter_AddRefs(dom_length));
    nsCOMPtr<nsISVGLength> length = do_QueryInterface(dom_length);
    NS_ASSERTION(length, "svg length missing interface");
    
    length->SetContext(nsRefPtr<nsSVGCoordCtx>(ctx->GetContextY()));
  }
}  

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

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