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-rw-r--r--dom/base/nsXMLNameSpaceMap.cpp110
1 files changed, 110 insertions, 0 deletions
diff --git a/dom/base/nsXMLNameSpaceMap.cpp b/dom/base/nsXMLNameSpaceMap.cpp
new file mode 100644
index 000000000..7134cfebb
--- /dev/null
+++ b/dom/base/nsXMLNameSpaceMap.cpp
@@ -0,0 +1,110 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 class for keeping track of prefix-to-namespace-id mappings
+ */
+
+#include "nsXMLNameSpaceMap.h"
+#include "nsContentUtils.h"
+#include "nsGkAtoms.h"
+#include "nsNameSpaceManager.h"
+#include "mozilla/dom/NameSpaceConstants.h"
+
+template <>
+class nsDefaultComparator <nsNameSpaceEntry, nsIAtom*> {
+ public:
+ bool Equals(const nsNameSpaceEntry& aEntry, nsIAtom* const& aPrefix) const {
+ return aEntry.prefix == aPrefix;
+ }
+};
+
+template <>
+class nsDefaultComparator <nsNameSpaceEntry, int32_t> {
+ public:
+ bool Equals(const nsNameSpaceEntry& aEntry, const int32_t& aNameSpace) const {
+ return aEntry.nameSpaceID == aNameSpace;
+ }
+};
+
+
+/* static */ nsXMLNameSpaceMap*
+nsXMLNameSpaceMap::Create(bool aForXML)
+{
+ nsXMLNameSpaceMap *map = new nsXMLNameSpaceMap();
+ NS_ENSURE_TRUE(map, nullptr);
+
+ if (aForXML) {
+ nsresult rv1 = map->AddPrefix(nsGkAtoms::xmlns,
+ kNameSpaceID_XMLNS);
+ nsresult rv2 = map->AddPrefix(nsGkAtoms::xml, kNameSpaceID_XML);
+
+ if (NS_FAILED(rv1) || NS_FAILED(rv2)) {
+ delete map;
+ map = nullptr;
+ }
+ }
+
+ return map;
+}
+
+nsXMLNameSpaceMap::nsXMLNameSpaceMap()
+ : mNameSpaces(4)
+{
+}
+
+nsresult
+nsXMLNameSpaceMap::AddPrefix(nsIAtom *aPrefix, int32_t aNameSpaceID)
+{
+ if (!mNameSpaces.Contains(aPrefix) && !mNameSpaces.AppendElement(aPrefix)) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ mNameSpaces[mNameSpaces.IndexOf(aPrefix)].nameSpaceID = aNameSpaceID;
+ return NS_OK;
+}
+
+nsresult
+nsXMLNameSpaceMap::AddPrefix(nsIAtom *aPrefix, nsString &aURI)
+{
+ int32_t id;
+ nsresult rv = nsContentUtils::NameSpaceManager()->RegisterNameSpace(aURI,
+ id);
+
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return AddPrefix(aPrefix, id);
+}
+
+int32_t
+nsXMLNameSpaceMap::FindNameSpaceID(nsIAtom *aPrefix) const
+{
+ size_t index = mNameSpaces.IndexOf(aPrefix);
+ if (index != mNameSpaces.NoIndex) {
+ return mNameSpaces[index].nameSpaceID;
+ }
+
+ // The default mapping for no prefix is no namespace. If a non-null prefix
+ // was specified and we didn't find it, we return an error.
+
+ return aPrefix ? kNameSpaceID_Unknown : kNameSpaceID_None;
+}
+
+nsIAtom*
+nsXMLNameSpaceMap::FindPrefix(int32_t aNameSpaceID) const
+{
+ size_t index = mNameSpaces.IndexOf(aNameSpaceID);
+ if (index != mNameSpaces.NoIndex) {
+ return mNameSpaces[index].prefix;
+ }
+
+ return nullptr;
+}
+
+void
+nsXMLNameSpaceMap::Clear()
+{
+ mNameSpaces.Clear();
+}