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