static nsresult GenerateFlatTextContent(nsIRange* aRange,
nsAFlatString& aString)
{
nsCOMPtr<nsIContentIterator> iter;
nsresult rv = NS_NewContentIterator(getter_AddRefs(iter));
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(iter, "NS_NewContentIterator succeeded, but the result is null");
nsCOMPtr<nsIDOMRange> domRange(do_QueryInterface(aRange));
NS_ASSERTION(domRange, "aRange doesn't have nsIDOMRange!");
iter->Init(domRange);
NS_ASSERTION(aString.IsEmpty(), "aString must be empty string");
nsINode* startNode = aRange->GetStartParent();
NS_ENSURE_TRUE(startNode, NS_ERROR_FAILURE);
nsINode* endNode = aRange->GetEndParent();
NS_ENSURE_TRUE(endNode, NS_ERROR_FAILURE);
if (startNode == endNode && startNode->IsNodeOfType(nsINode::eTEXT)) {
nsIContent* content = static_cast<nsIContent*>(startNode);
AppendSubString(aString, content, aRange->StartOffset(),
aRange->EndOffset() - aRange->StartOffset());
ConvertToNativeNewlines(aString);
return NS_OK;
}
nsAutoString tmpStr;
for (; !iter->IsDone(); iter->Next()) {
nsINode* node = iter->GetCurrentNode();
if (!node || !node->IsNodeOfType(nsINode::eCONTENT))
continue;
nsIContent* content = static_cast<nsIContent*>(node);
if (content->IsNodeOfType(nsINode::eTEXT)) {
if (content == startNode)
AppendSubString(aString, content, aRange->StartOffset(),
content->TextLength() - aRange->StartOffset());
else if (content == endNode)
AppendSubString(aString, content, 0, aRange->EndOffset());
else
AppendString(aString, content);
} else if (IsContentBR(content))
aString.Append(PRUnichar('\n'));
}
ConvertToNativeNewlines(aString);
return NS_OK;
}
static nsresult GenerateFlatTextContent(nsRange* aRange,
nsAFlatString& aString)
{
nsCOMPtr<nsIContentIterator> iter = NS_NewContentIterator();
iter->Init(aRange);
NS_ASSERTION(aString.IsEmpty(), "aString must be empty string");
nsINode* startNode = aRange->GetStartParent();
NS_ENSURE_TRUE(startNode, NS_ERROR_FAILURE);
nsINode* endNode = aRange->GetEndParent();
NS_ENSURE_TRUE(endNode, NS_ERROR_FAILURE);
if (startNode == endNode && startNode->IsNodeOfType(nsINode::eTEXT)) {
nsIContent* content = static_cast<nsIContent*>(startNode);
AppendSubString(aString, content, aRange->StartOffset(),
aRange->EndOffset() - aRange->StartOffset());
ConvertToNativeNewlines(aString);
return NS_OK;
}
nsAutoString tmpStr;
for (; !iter->IsDone(); iter->Next()) {
nsINode* node = iter->GetCurrentNode();
if (!node)
break;
if (!node->IsNodeOfType(nsINode::eCONTENT))
continue;
nsIContent* content = static_cast<nsIContent*>(node);
if (content->IsNodeOfType(nsINode::eTEXT)) {
if (content == startNode)
AppendSubString(aString, content, aRange->StartOffset(),
content->TextLength() - aRange->StartOffset());
else if (content == endNode)
AppendSubString(aString, content, 0, aRange->EndOffset());
else
AppendString(aString, content);
} else if (IsContentBR(content))
aString.Append(PRUnichar('\n'));
}
ConvertToNativeNewlines(aString);
return NS_OK;
}
static PRUint32 GetNativeTextLength(nsIContent* aContent)
{
nsAutoString str;
if (aContent->IsNodeOfType(nsINode::eTEXT))
AppendString(str, aContent);
else if (IsContentBR(aContent))
str.Assign(PRUnichar('\n'));
ConvertToNativeNewlines(str);
return str.Length();
}
static PRUint32 ConvertToXPOffset(nsIContent* aContent, PRUint32 aNativeOffset)
{
nsAutoString str;
AppendString(str, aContent);
ConvertToNativeNewlines(str);
NS_ASSERTION(aNativeOffset <= str.Length(),
"aOffsetForNativeLF is too large!");
str.Truncate(aNativeOffset);
ConvertToXPNewlines(str);
return str.Length();
}
