зеркало из https://github.com/mozilla/gecko-dev.git
89 строки
2.2 KiB
C++
89 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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 "nsIDocument.h"
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#include "nsIDOMXULCommandDispatcher.h"
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#include "nsIServiceManager.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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#include "XULDocument.h"
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using namespace mozilla;
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using dom::XULDocument;
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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
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nsXULContentUtils::Finish()
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{
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NS_IF_RELEASE(gCollation);
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return NS_OK;
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}
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nsICollation*
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nsXULContentUtils::GetCollation()
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{
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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),
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"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
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nsXULContentUtils::FindChildByTag(nsIContent* aElement,
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int32_t aNameSpaceID,
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nsAtom* aTag,
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Element** aResult)
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{
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for (nsIContent* child = aElement->GetFirstChild();
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child;
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child = child->GetNextSibling()) {
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if (child->IsElement() &&
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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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}
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