RetroZilla/layout/generic/nsBidiFrames.cpp

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#ifdef IBMBIDI

#include "nsBidiFrames.h"
#include "nsLayoutAtoms.h"


nsDirectionalFrame::nsDirectionalFrame(PRUnichar aChar)
  : mChar(aChar)
{
}

nsDirectionalFrame::~nsDirectionalFrame()
{
}

PRUnichar
nsDirectionalFrame::GetChar(void) const
{
  return mChar;
}

/**
 * Get the "type" of the frame
 *
 * @see nsLayoutAtoms::directionalFrame
 */
nsIAtom*
nsDirectionalFrame::GetType() const
{ 
  return nsLayoutAtoms::directionalFrame; 
}
  
const nsIID&
nsDirectionalFrame::GetIID()
{
  static nsIID iid = NS_DIRECTIONAL_FRAME_IID;
  return iid;
}

NS_IMETHODIMP
nsDirectionalFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
  nsresult rv = NS_NOINTERFACE;

  if (!aInstancePtr) {
    rv = NS_ERROR_NULL_POINTER;
  }
  else if (aIID.Equals(NS_GET_IID(nsDirectionalFrame) ) ) {
    *aInstancePtr = (void*) this;
    rv = NS_OK;
  }
  return rv;
}

void*
nsDirectionalFrame::operator new(size_t aSize) CPP_THROW_NEW
{
  void* frame = ::operator new(aSize);
  if (frame) {
    memset(frame, 0, aSize);
  }
  return frame;
}

nsresult
NS_NewDirectionalFrame(nsIFrame** aNewFrame, PRUnichar aChar)
{
  NS_PRECONDITION(aNewFrame, "null OUT ptr");
  if (nsnull == aNewFrame) {
    return NS_ERROR_NULL_POINTER;
  }
  nsDirectionalFrame* frame = new nsDirectionalFrame(aChar);
  *aNewFrame = frame;
  if (nsnull == frame) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  return NS_OK;
}

#endif /* IBMBIDI */