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Bug 240933 - Part 5: Inject linefeed characters instead of BR elements when the user presses Enter; r=roc a=dbaron

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--HG--
extra : rebase_source : af405de4d02ba543dffacea04dd026a1dd24c8bf
This commit is contained in:
Ehsan Akhgari 2010-07-17 19:40:22 -04:00
parent 1bb782fa37
commit f31556a8c3
1 changed files with 37 additions and 40 deletions
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73
editor/libeditor/text/nsPlaintextEditor.cpp
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@ -867,52 +867,49 @@ NS_IMETHODIMP nsPlaintextEditor::InsertLineBreak()
NS_ENSURE_SUCCESS(res, res);
if (!cancel && !handled)
{
// create the new BR node
nsCOMPtr<nsIDOMNode> newNode;
res = DeleteSelectionAndCreateNode(NS_LITERAL_STRING("br"), getter_AddRefs(newNode));
if (!newNode) res = NS_ERROR_NULL_POINTER; // don't return here, so DidDoAction is called
if (NS_SUCCEEDED(res))
{
// set the selection to the new node
nsCOMPtr<nsIDOMNode>parent;
res = newNode->GetParentNode(getter_AddRefs(parent));
if (!parent) res = NS_ERROR_NULL_POINTER; // don't return here, so DidDoAction is called
if (NS_SUCCEEDED(res))
{
PRInt32 offsetInParent=-1; // we use the -1 as a marker to see if we need to compute this or not
nsCOMPtr<nsIDOMNode>nextNode;
newNode->GetNextSibling(getter_AddRefs(nextNode));
if (nextNode)
{
nsCOMPtr<nsIDOMCharacterData>nextTextNode = do_QueryInterface(nextNode);
if (!nextTextNode) {
nextNode = do_QueryInterface(newNode); // is this QI needed?
}
else {
offsetInParent=0;
}
}
else {
nextNode = do_QueryInterface(newNode); // is this QI needed?
}
// get the (collapsed) selection location
nsCOMPtr<nsIDOMNode> selNode;
PRInt32 selOffset;
res = GetStartNodeAndOffset(selection, getter_AddRefs(selNode), &selOffset);
NS_ENSURE_SUCCESS(res, res);
if (-1==offsetInParent)
// don't put text in places that can't have it
if (!IsTextNode(selNode) && !CanContainTag(selNode, NS_LITERAL_STRING("#text")))
return NS_ERROR_FAILURE;
// we need to get the doc
nsCOMPtr<nsIDOMDocument> doc;
res = GetDocument(getter_AddRefs(doc));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(doc, NS_ERROR_NULL_POINTER);
// don't spaz my selection in subtransactions
nsAutoTxnsConserveSelection dontSpazMySelection(this);
// insert a linefeed character
res = InsertTextImpl(NS_LITERAL_STRING("\n"), address_of(selNode),
&selOffset, doc);
if (!selNode) res = NS_ERROR_NULL_POINTER; // don't return here, so DidDoAction is called
if (NS_SUCCEEDED(res))
{
// set the selection to the correct location
res = selection->Collapse(selNode, selOffset);
if (NS_SUCCEEDED(res))
{
// see if we're at the end of the editor range
nsCOMPtr<nsIDOMNode> endNode;
PRInt32 endOffset;
res = GetEndNodeAndOffset(selection, getter_AddRefs(endNode), &endOffset);
if (NS_SUCCEEDED(res) && endNode == selNode && endOffset == selOffset)
{
nextNode->GetParentNode(getter_AddRefs(parent));
res = GetChildOffset(nextNode, parent, offsetInParent);
if (NS_SUCCEEDED(res)) {
// SetInterlinePosition(PR_TRUE) means we want the caret to stick to the content on the "right".
// We want the caret to stick to whatever is past the break. This is
// because the break is on the same line we were on, but the next content
// will be on the following line.
nsCOMPtr<nsISelectionPrivate> selPriv(do_QueryInterface(selection));
selPriv->SetInterlinePosition(PR_TRUE);
res = selection->Collapse(parent, offsetInParent+1); // +1 to insert just after the break
}
}
else
{
res = selection->Collapse(nextNode, offsetInParent);
}
}
}