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Bug 755311 - Simplify SetDocTitleTxn::SetDomTitle; r=ehsan

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This commit is contained in:
Ms2ger 2012-05-18 10:29:40 +02:00
parent a03ec842c1
commit 9d1522ebbc
1 changed files with 11 additions and 16 deletions
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27
editor/libeditor/base/SetDocTitleTxn.cpp
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@ -43,6 +43,9 @@
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMText.h"
#include "nsIDOMElement.h"
#include "mozilla/dom/Element.h"
using namespace mozilla;
// note that aEditor is not refcounted
SetDocTitleTxn::SetDocTitleTxn()
@ -132,14 +135,11 @@ nsresult SetDocTitleTxn::SetDomTitle(const nsAString& aTitle)
mIsTransient = false;
// Get the <HEAD> node, create a <TITLE> and insert it under the HEAD
nsCOMPtr<nsIDOMNodeList> headList;
res = domDoc->GetElementsByTagName(NS_LITERAL_STRING("head"),getter_AddRefs(headList));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(headList, NS_ERROR_FAILURE);
nsCOMPtr<nsIDOMNode>headNode;
headList->Item(0, getter_AddRefs(headNode));
NS_ENSURE_TRUE(headNode, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDoc);
NS_ENSURE_STATE(document);
dom::Element* head = document->GetHeadElement();
NS_ENSURE_STATE(head);
bool newTitleNode = false;
PRUint32 newTitleIndex = 0;
@ -155,13 +155,8 @@ nsresult SetDocTitleTxn::SetDomTitle(const nsAString& aTitle)
titleNode = do_QueryInterface(titleElement);
newTitleNode = true;
// Get index so we append new title node
// after all existing HEAD children
nsCOMPtr<nsIDOMNodeList> children;
res = headNode->GetChildNodes(getter_AddRefs(children));
NS_ENSURE_SUCCESS(res, res);
if (children)
children->GetLength(&newTitleIndex);
// Get index so we append new title node after all existing HEAD children.
newTitleIndex = head->GetChildCount();
}
// Append a text node under the TITLE
@ -191,7 +186,7 @@ nsresult SetDocTitleTxn::SetDomTitle(const nsAString& aTitle)
if (newTitleNode)
{
// Undoable transaction to insert title+text together
res = editor->InsertNode(titleNode, headNode, newTitleIndex);
res = editor->InsertNode(titleNode, head->AsDOMNode(), newTitleIndex);
}
return res;
}