зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
2.5 KiB
C++
90 строки
2.5 KiB
C++
/* -*- 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 "mozilla/intl/LocaleService.h"
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#include "mozilla/intl/Collator.h"
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#include "nsCOMPtr.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIContent.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/Element.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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const mozilla::intl::Collator* nsXULContentUtils::gCollator;
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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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if (gCollator) {
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delete gCollator;
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gCollator = nullptr;
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}
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return NS_OK;
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}
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const mozilla::intl::Collator* nsXULContentUtils::GetCollator() {
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if (!gCollator) {
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// Lazily initialize the Collator.
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auto result = mozilla::intl::LocaleService::TryCreateComponent<
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mozilla::intl::Collator>();
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if (result.isErr()) {
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NS_ERROR("couldn't create a mozilla::intl::Collator");
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return nullptr;
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}
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auto collator = result.unwrap();
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// Sort in a case-insensitive way, where "base" letters are considered
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// equal, e.g: a = á, a = A, a ≠ b.
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mozilla::intl::Collator::Options options{};
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options.sensitivity = mozilla::intl::Collator::Sensitivity::Base;
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auto optResult = collator->SetOptions(options);
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if (optResult.isErr()) {
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NS_ERROR("couldn't set options for mozilla::intl::Collator");
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return nullptr;
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}
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gCollator = collator.release();
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}
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return gCollator;
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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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mozilla::dom::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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}
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