NS_IMETHODIMP
InsertNodeTransaction::DoTransaction()
{
if (NS_WARN_IF(!mEditorBase) ||
NS_WARN_IF(!mContentToInsert) ||
NS_WARN_IF(!mPointToInsert.IsSet())) {
return NS_ERROR_NOT_INITIALIZED;
}
if (!mPointToInsert.IsSetAndValid()) {
// It seems that DOM tree has been changed after first DoTransaction()
// and current RedoTranaction() call.
if (mPointToInsert.GetChild()) {
EditorDOMPoint newPointToInsert(mPointToInsert.GetChild());
if (!newPointToInsert.IsSet()) {
// The insertion point has been removed from the DOM tree.
// In this case, we should append the node to the container instead.
newPointToInsert.SetToEndOf(mPointToInsert.GetContainer());
if (NS_WARN_IF(!newPointToInsert.IsSet())) {
return NS_ERROR_FAILURE;
}
}
mPointToInsert = newPointToInsert;
} else {
mPointToInsert.SetToEndOf(mPointToInsert.GetContainer());
if (NS_WARN_IF(!mPointToInsert.IsSet())) {
return NS_ERROR_FAILURE;
}
}
}
mEditorBase->MarkNodeDirty(GetAsDOMNode(mContentToInsert));
ErrorResult error;
mPointToInsert.GetContainer()->InsertBefore(*mContentToInsert,
mPointToInsert.GetChild(),
error);
error.WouldReportJSException();
if (NS_WARN_IF(error.Failed())) {
return error.StealNSResult();
}
// Only set selection to insertion point if editor gives permission
if (mEditorBase->GetShouldTxnSetSelection()) {
RefPtr<Selection> selection = mEditorBase->GetSelection();
if (NS_WARN_IF(!selection)) {
return NS_ERROR_FAILURE;
}
// Place the selection just after the inserted element
EditorRawDOMPoint afterInsertedNode(mContentToInsert);
DebugOnly<bool> advanced = afterInsertedNode.AdvanceOffset();
NS_WARNING_ASSERTION(advanced,
"Failed to advance offset after the inserted node");
selection->Collapse(afterInsertedNode, error);
if (NS_WARN_IF(error.Failed())) {
error.SuppressException();
}
}
return NS_OK;
}
NS_IMETHODIMP
InsertTextTransaction::DoTransaction()
{
if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(!mTextNode)) {
return NS_ERROR_NOT_AVAILABLE;
}
ErrorResult rv;
mTextNode->InsertData(mOffset, mStringToInsert, rv);
if (NS_WARN_IF(rv.Failed())) {
return rv.StealNSResult();
}
// Only set selection to insertion point if editor gives permission
if (mEditorBase->GetShouldTxnSetSelection()) {
RefPtr<Selection> selection = mEditorBase->GetSelection();
if (NS_WARN_IF(!selection)) {
return NS_ERROR_FAILURE;
}
DebugOnly<nsresult> rv =
selection->Collapse(mTextNode, mOffset + mStringToInsert.Length());
NS_ASSERTION(NS_SUCCEEDED(rv),
"Selection could not be collapsed after insert");
} else {
// Do nothing - DOM Range gravity will adjust selection
}
mEditorBase->RangeUpdaterRef().
SelAdjInsertText(*mTextNode, mOffset, mStringToInsert);
return NS_OK;
}
