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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
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 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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/* For documentation of the accessibility architecture, 
 * see http://lxr.mozilla.org/seamonkey/source/accessible/accessible-docs.html
 */

#ifndef _SimpleDOMNode_H_
#define _SimpleDOMNode_H_

#include "nsCOMPtr.h"
#include "nsIAccessible.h"
#include "Accessible.h"
#include "nsIAccessibleEventListener.h"
#include "ISimpleDOMNode.h"
#include "ISimpleDOMDocument.h"
#include "nsIDOMElement.h"
#include "nsIContent.h"

#include "nsString.h"

class SimpleDOMNode : public ISimpleDOMNode
{
  public: // construction, destruction
    SimpleDOMNode(nsIAccessible *, HWND);
    SimpleDOMNode(nsIAccessible *, nsIDOMNode *, HWND);
    virtual ~SimpleDOMNode();

  public: // IUnknown methods - see iunknown.h for documentation
    STDMETHODIMP_(ULONG) AddRef        ();
    STDMETHODIMP      QueryInterface(REFIID, void**);
    STDMETHODIMP_(ULONG) Release       ();

    nsIDOMNode* GetRealDOMNode();

  private:
    void GetAccessibleFor(nsIDOMNode *node, nsIAccessible **newAcc);
    ISimpleDOMNode* SimpleDOMNode::MakeSimpleDOMNode(nsIDOMNode *node);
    NS_IMETHOD GetComputedStyleDeclaration(nsIDOMCSSStyleDeclaration **aCssDecl, PRUint32 *aLength);


  public:

    virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_nodeInfo( 
        /* [out] */ BSTR __RPC_FAR *tagName,
        /* [out] */ short __RPC_FAR *nameSpaceID,
        /* [out] */ BSTR __RPC_FAR *nodeValue,
        /* [out] */ unsigned int __RPC_FAR *numChildren,
        /* [out] */ unsigned int __RPC_FAR *aUniqueID,
        /* [out][retval] */ unsigned short __RPC_FAR *nodeType);
  
    virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_attributes( 
        /* [in] */ unsigned short maxAttribs,
        /* [length_is][size_is][out] */ BSTR __RPC_FAR *attribNames,
        /* [length_is][size_is][out] */ short __RPC_FAR *nameSpaceID,
        /* [length_is][size_is][out] */ BSTR __RPC_FAR *attribValues,
        /* [out][retval] */ unsigned short __RPC_FAR *numAttribs);
  
    virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_attributesForNames( 
        /* [in] */ unsigned short maxAttribs,
        /* [length_is][size_is][in] */ BSTR __RPC_FAR *attribNames,
        /* [length_is][size_is][in] */ short __RPC_FAR *nameSpaceID,
        /* [length_is][size_is][retval] */ BSTR __RPC_FAR *attribValues);
  
    virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_computedStyle( 
        /* [in] */ unsigned short maxStyleProperties,
        /* [in] */ boolean useAlternateView,
        /* [length_is][size_is][out] */ BSTR __RPC_FAR *styleProperties,
        /* [length_is][size_is][out] */ BSTR __RPC_FAR *styleValues,
        /* [out][retval] */ unsigned short __RPC_FAR *numStyleProperties);
  
    virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_computedStyleForProperties( 
        /* [in] */ unsigned short numStyleProperties,
        /* [in] */ boolean useAlternateView,
        /* [length_is][size_is][in] */ BSTR __RPC_FAR *styleProperties,
        /* [length_is][size_is][out][retval] */ BSTR __RPC_FAR *styleValues);
        
    virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_parentNode(ISimpleDOMNode __RPC_FAR *__RPC_FAR *node);
    virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_firstChild(ISimpleDOMNode __RPC_FAR *__RPC_FAR *node);
    virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_lastChild(ISimpleDOMNode __RPC_FAR *__RPC_FAR *node);
    virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_previousSibling(ISimpleDOMNode __RPC_FAR *__RPC_FAR *node);
    virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nextSibling(ISimpleDOMNode __RPC_FAR *__RPC_FAR *node);

  protected:
    nsCOMPtr<nsIDOMNode> mDOMNode;
    ULONG        m_cRef;              // the reference count
    HWND mWnd;

    void GetElementAndContentFor(nsCOMPtr<nsIDOMElement>& aElement, nsCOMPtr<nsIContent>& aContent);
};

#endif