Source code

Revision control

Other Tools

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
A package of routines shared by the XUL content code.
*/
#include "mozilla/ArrayUtils.h"
#include "nsCollationCID.h"
#include "nsCOMPtr.h"
#include "nsIContent.h"
#include "nsICollation.h"
#include "mozilla/dom/Document.h"
#include "nsXULContentUtils.h"
#include "nsLayoutCID.h"
#include "nsString.h"
#include "nsGkAtoms.h"
using namespace mozilla;
//------------------------------------------------------------------------
nsICollation* nsXULContentUtils::gCollation;
//------------------------------------------------------------------------
// Constructors n' stuff
//
nsresult nsXULContentUtils::Finish() {
NS_IF_RELEASE(gCollation);
return NS_OK;
}
nsICollation* nsXULContentUtils::GetCollation() {
if (!gCollation) {
nsCOMPtr<nsICollationFactory> colFactory =
do_CreateInstance(NS_COLLATIONFACTORY_CONTRACTID);
if (colFactory) {
DebugOnly<nsresult> rv = colFactory->CreateCollation(&gCollation);
NS_ASSERTION(NS_SUCCEEDED(rv), "couldn't create collation instance");
} else
NS_ERROR("couldn't create instance of collation factory");
}
return gCollation;
}
//------------------------------------------------------------------------
//
nsresult nsXULContentUtils::FindChildByTag(nsIContent* aElement,
int32_t aNameSpaceID, nsAtom* aTag,
Element** aResult) {
for (nsIContent* child = aElement->GetFirstChild(); child;
child = child->GetNextSibling()) {
if (child->IsElement() && child->NodeInfo()->Equals(aTag, aNameSpaceID)) {
NS_ADDREF(*aResult = child->AsElement());
return NS_OK;
}
}
*aResult = nullptr;
return NS_RDF_NO_VALUE; // not found
}