Inital geolocation implementation. bug=437948, r/sr=jst
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#ifndef nsFilteredContentIterator_h__
#define nsFilteredContentIterator_h__
#include "nsIContentIterator.h"
#include "nsCOMPtr.h"
#include "nsIAtom.h"
#include "nsITextServicesFilter.h"
#include "nsIDOMNSRange.h"
#include "nsIRangeUtils.h"
/**
*
*/
class nsFilteredContentIterator : public nsIContentIterator
{
public:
// nsISupports interface...
NS_DECL_ISUPPORTS
nsFilteredContentIterator(nsITextServicesFilter* aFilter);
virtual ~nsFilteredContentIterator();
/* nsIContentIterator */
virtual nsresult Init(nsIContent* aRoot);
virtual nsresult Init(nsIDOMRange* aRange);
virtual void First();
virtual void Last();
virtual void Next();
virtual void Prev();
virtual nsIContent *GetCurrentNode();
virtual PRBool IsDone();
virtual nsresult PositionAt(nsIContent* aCurNode);
/* Helpers */
PRPackedBool DidSkip() { return mDidSkip; }
void ClearDidSkip() { mDidSkip = PR_FALSE; }
protected:
nsFilteredContentIterator() { }
// enum to give us the direction
typedef enum {eDirNotSet, eForward, eBackward} eDirectionType;
nsresult AdvanceNode(nsIDOMNode* aNode, nsIDOMNode*& aNewNode, eDirectionType aDir);
void CheckAdvNode(nsIDOMNode* aNode, PRPackedBool& aDidSkip, eDirectionType aDir);
nsresult SwitchDirections(PRPackedBool aChangeToForward);
nsCOMPtr<nsIContentIterator> mCurrentIterator;
nsCOMPtr<nsIContentIterator> mIterator;
nsCOMPtr<nsIContentIterator> mPreIterator;
nsCOMPtr<nsIAtom> mBlockQuoteAtom;
nsCOMPtr<nsIAtom> mScriptAtom;
nsCOMPtr<nsIAtom> mTextAreaAtom;
nsCOMPtr<nsIAtom> mSelectAreaAtom;
nsCOMPtr<nsIAtom> mMapAtom;
nsCOMPtr<nsITextServicesFilter> mFilter;
nsCOMPtr<nsIDOMNSRange> mRange;
PRPackedBool mDidSkip;
PRPackedBool mIsOutOfRange;
eDirectionType mDirection;
};
#endif