C++ (Cpp) ContentToParentOffset示例

示例#1

文件： nsFilteredContentIterator.cpp 项目： amyvmiwei/firefox

///////////////////////////////////////////////////////////////////////////
// ContentIsInTraversalRange: returns true if content is visited during
// the traversal of the range in the specified mode.
//
static PRBool
ContentIsInTraversalRange(nsIContent *aContent,   PRBool aIsPreMode,
                          nsIDOMNode *aStartNode, PRInt32 aStartOffset,
                          nsIDOMNode *aEndNode,   PRInt32 aEndOffset)
{
  if (!aStartNode || !aEndNode || !aContent)
    return PR_FALSE;

  nsCOMPtr<nsIDOMNode> parentNode;
  PRInt32 indx = 0;

  ContentToParentOffset(aContent, getter_AddRefs(parentNode), &indx);

  if (!parentNode)
    return PR_FALSE;

  if (!aIsPreMode)
    ++indx;

  PRInt32 startRes;
  PRInt32 endRes;
  nsresult rv = nsTextServicesDocument::ComparePoints(aStartNode, aStartOffset, parentNode, indx, &startRes);
  if (NS_FAILED(rv)) return PR_FALSE;

  rv = nsTextServicesDocument::ComparePoints(aEndNode,   aEndOffset,   parentNode, indx,  &endRes);
  if (NS_FAILED(rv)) return PR_FALSE;

  return (startRes <= 0) && (endRes >= 0);
}

示例#2

文件： nsFilteredContentIterator.cpp 项目： Akin-Net/mozilla-central

///////////////////////////////////////////////////////////////////////////
// ContentIsInTraversalRange: returns true if content is visited during
// the traversal of the range in the specified mode.
//
static PRBool
ContentIsInTraversalRange(nsIContent *aContent,   PRBool aIsPreMode,
                          nsIDOMNode *aStartNode, PRInt32 aStartOffset,
                          nsIDOMNode *aEndNode,   PRInt32 aEndOffset)
{
  NS_ENSURE_TRUE(aStartNode && aEndNode && aContent, PR_FALSE);

  nsCOMPtr<nsIDOMNode> parentNode;
  PRInt32 indx = 0;

  ContentToParentOffset(aContent, getter_AddRefs(parentNode), &indx);

  NS_ENSURE_TRUE(parentNode, PR_FALSE);

  if (!aIsPreMode)
    ++indx;

  PRInt32 startRes;
  PRInt32 endRes;
  nsresult rv = nsTextServicesDocument::ComparePoints(aStartNode, aStartOffset, parentNode, indx, &startRes);
  NS_ENSURE_SUCCESS(rv, PR_FALSE);

  rv = nsTextServicesDocument::ComparePoints(aEndNode,   aEndOffset,   parentNode, indx,  &endRes);
  NS_ENSURE_SUCCESS(rv, PR_FALSE);

  return (startRes <= 0) && (endRes >= 0);
}

示例#3

文件： FilteredContentIterator.cpp 项目： jasonLaster/gecko-dev

///////////////////////////////////////////////////////////////////////////
// ContentIsInTraversalRange: returns true if content is visited during
// the traversal of the range in the specified mode.
//
static bool ContentIsInTraversalRange(nsIContent* aContent, bool aIsPreMode,
                                      nsINode* aStartContainer,
                                      int32_t aStartOffset,
                                      nsINode* aEndContainer,
                                      int32_t aEndOffset) {
  NS_ENSURE_TRUE(aStartContainer && aEndContainer && aContent, false);

  nsCOMPtr<nsIContent> parentNode;
  int32_t indx = 0;

  ContentToParentOffset(aContent, getter_AddRefs(parentNode), &indx);

  NS_ENSURE_TRUE(parentNode, false);

  if (!aIsPreMode) ++indx;

  int32_t startRes = nsContentUtils::ComparePoints(
      aStartContainer, aStartOffset, parentNode, indx);
  int32_t endRes = nsContentUtils::ComparePoints(aEndContainer, aEndOffset,
                                                 parentNode, indx);
  return (startRes <= 0) && (endRes >= 0);
}

示例#4

文件： nsFilteredContentIterator.cpp 项目： lofter2011/Icefox

///////////////////////////////////////////////////////////////////////////
// ContentIsInTraversalRange: returns true if content is visited during
// the traversal of the range in the specified mode.
//
static bool
ContentIsInTraversalRange(nsIContent *aContent,   bool aIsPreMode,
                          nsIDOMNode *aStartNode, PRInt32 aStartOffset,
                          nsIDOMNode *aEndNode,   PRInt32 aEndOffset)
{
  NS_ENSURE_TRUE(aStartNode && aEndNode && aContent, false);

  nsCOMPtr<nsIDOMNode> parentNode;
  PRInt32 indx = 0;

  ContentToParentOffset(aContent, getter_AddRefs(parentNode), &indx);

  NS_ENSURE_TRUE(parentNode, false);

  if (!aIsPreMode)
    ++indx;

  PRInt32 startRes = nsContentUtils::ComparePoints(aStartNode, aStartOffset,
                                                   parentNode, indx);
  PRInt32 endRes = nsContentUtils::ComparePoints(aEndNode, aEndOffset,
                                                 parentNode, indx);
  return (startRes <= 0) && (endRes >= 0);
}