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 * The Original Code is mozilla.org code.
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 *
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#ifndef nsXMLContentSerializer_h__
#define nsXMLContentSerializer_h__

#include "nsIContentSerializer.h"
#include "nsISupportsUtils.h"
#include "nsCOMPtr.h"
#include "nsVoidArray.h"

class nsIDOMNode;

class nsXMLContentSerializer : public nsIContentSerializer {
 public:
  nsXMLContentSerializer();
  virtual ~nsXMLContentSerializer();

  NS_DECL_ISUPPORTS

  NS_IMETHOD Init(PRUint32 flags, PRUint32 aWrapColumn,
                  nsIAtom* aCharSet);

  NS_IMETHOD AppendText(nsIDOMText* aText, PRInt32 aStartOffset,
                        PRInt32 aEndOffset, nsAWritableString& aStr);

  NS_IMETHOD AppendCDATASection(nsIDOMCDATASection* aCDATASection,
                                PRInt32 aStartOffset, PRInt32 aEndOffset,
                                nsAWritableString& aStr);

  NS_IMETHOD AppendProcessingInstruction(nsIDOMProcessingInstruction* aPI,
                                         PRInt32 aStartOffset,
                                         PRInt32 aEndOffset,
                                         nsAWritableString& aStr);

  NS_IMETHOD AppendComment(nsIDOMComment* aComment, PRInt32 aStartOffset,
                           PRInt32 aEndOffset, nsAWritableString& aStr);
  
  NS_IMETHOD AppendDoctype(nsIDOMDocumentType *aDoctype,
                           nsAWritableString& aStr);

  NS_IMETHOD AppendElementStart(nsIDOMElement *aElement,
                                nsAWritableString& aStr);
  
  NS_IMETHOD AppendElementEnd(nsIDOMElement *aElement,
                              nsAWritableString& aStr);

  NS_IMETHOD Flush(nsAWritableString& aStr) { return NS_OK; }

 protected:
  virtual void AppendToString(const PRUnichar* aStr,
                              PRInt32 aLength,
                              nsAWritableString& aOutputStr);
  virtual void AppendToString(const PRUnichar aChar,
                              nsAWritableString& aOutputStr);
  virtual void AppendToString(const nsAReadableString& aStr,
                              nsAWritableString& aOutputStr,
                              PRBool aTranslateEntities = PR_FALSE,
                              PRBool aIncrColumn = PR_TRUE);
  nsresult AppendTextData(nsIDOMNode* aNode, 
                          PRInt32 aStartOffset,
                          PRInt32 aEndOffset,
                          nsAWritableString& aStr,
                          PRBool aTranslateEntities,
                          PRBool aIncrColumn);
  virtual nsresult PushNameSpaceDecl(const nsAReadableString& aPrefix,
                                     const nsAReadableString& aURI,
                                     nsIDOMElement* aOwner);
  void PopNameSpaceDeclsFor(nsIDOMElement* aOwner);
  PRBool ConfirmPrefix(nsAWritableString& aPrefix,
                       const nsAReadableString& aURI);
  void SerializeAttr(const nsAReadableString& aPrefix,
                     const nsAReadableString& aName,
                     const nsAReadableString& aValue,
                     nsAWritableString& aStr,
                     PRBool aDoEscapeEntities);

  PRInt32 mPrefixIndex;
  nsVoidArray mNameSpaceStack;
  PRBool mInAttribute;
};

extern nsresult NS_NewXMLContentSerializer(nsIContentSerializer** aSerializer);

#endif