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-rw-r--r--dom/xul/nsXULContentUtils.cpp89
1 files changed, 89 insertions, 0 deletions
diff --git a/dom/xul/nsXULContentUtils.cpp b/dom/xul/nsXULContentUtils.cpp
new file mode 100644
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+++ b/dom/xul/nsXULContentUtils.cpp
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+/* -*- 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 "mozilla/intl/LocaleService.h"
+#include "mozilla/intl/Collator.h"
+
+#include "nsCOMPtr.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIContent.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/Element.h"
+#include "nsXULContentUtils.h"
+#include "nsLayoutCID.h"
+#include "nsString.h"
+#include "nsGkAtoms.h"
+
+using namespace mozilla;
+
+//------------------------------------------------------------------------
+
+const mozilla::intl::Collator* nsXULContentUtils::gCollator;
+
+//------------------------------------------------------------------------
+// Constructors n' stuff
+//
+
+nsresult nsXULContentUtils::Finish() {
+ if (gCollator) {
+ delete gCollator;
+ gCollator = nullptr;
+ }
+
+ return NS_OK;
+}
+
+const mozilla::intl::Collator* nsXULContentUtils::GetCollator() {
+ if (!gCollator) {
+ // Lazily initialize the Collator.
+ auto result = mozilla::intl::LocaleService::TryCreateComponent<
+ mozilla::intl::Collator>();
+ if (result.isErr()) {
+ NS_ERROR("couldn't create a mozilla::intl::Collator");
+ return nullptr;
+ }
+
+ auto collator = result.unwrap();
+
+ // Sort in a case-insensitive way, where "base" letters are considered
+ // equal, e.g: a = á, a = A, a ≠ b.
+ mozilla::intl::Collator::Options options{};
+ options.sensitivity = mozilla::intl::Collator::Sensitivity::Base;
+ auto optResult = collator->SetOptions(options);
+ if (optResult.isErr()) {
+ NS_ERROR("couldn't set options for mozilla::intl::Collator");
+ return nullptr;
+ }
+ gCollator = collator.release();
+ }
+
+ return gCollator;
+}
+
+//------------------------------------------------------------------------
+//
+
+nsresult nsXULContentUtils::FindChildByTag(nsIContent* aElement,
+ int32_t aNameSpaceID, nsAtom* aTag,
+ mozilla::dom::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
+}