Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/dom/svg/SVGElementFactory.cpp b/dom/svg/SVGElementFactory.cpp
new file mode 100644
index 0000000000..61cd2f65dd
--- /dev/null
+++ b/dom/svg/SVGElementFactory.cpp
@@ -0,0 +1,105 @@
+/* -*- 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/. */
+
+#include "SVGElementFactory.h"
+#include "nsGkAtoms.h"
+#include "nsIContent.h"
+#include "mozilla/dom/NodeInfo.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/FromParser.h"
+#include "mozilla/StaticPtr.h"
+#include "nsTHashMap.h"
+#include "nsHashKeys.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+// Hash table that maps nsAtom* SVG tags to a SVGContentCreatorFunction.
+using TagAtomTable =
+    nsTHashMap<nsPtrHashKey<nsAtom>, SVGContentCreatorFunction>;
+StaticAutoPtr<TagAtomTable> sTagAtomTable;
+
+#define SVG_TAG(_tag, _classname)                                         \
+  nsresult NS_NewSVG##_classname##Element(                                \
+      nsIContent** aResult,                                               \
+      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);              \
+                                                                          \
+  nsresult NS_NewSVG##_classname##Element(                                \
+      nsIContent** aResult,                                               \
+      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,               \
+      FromParser aFromParser) {                                           \
+    return NS_NewSVG##_classname##Element(aResult, std::move(aNodeInfo)); \
+  }
+
+#define SVG_FROM_PARSER_TAG(_tag, _classname)
+
+#include "SVGTagList.h"
+#undef SVG_TAG
+#undef SVG_FROM_PARSER_TAG
+
+nsresult NS_NewSVGElement(Element** aResult,
+                          already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
+
+enum SVGTag {
+#define SVG_TAG(_tag, _classname) eSVGTag_##_tag,
+#define SVG_FROM_PARSER_TAG(_tag, _classname) eSVGTag_##_tag,
+#include "SVGTagList.h"
+#undef SVG_TAG
+#undef SVG_FROM_PARSER_TAG
+  eSVGTag_Count
+};
+
+void SVGElementFactory::Init() {
+  sTagAtomTable = new TagAtomTable(64);
+
+#define SVG_TAG(_tag, _classname) \
+  sTagAtomTable->InsertOrUpdate(  \
+      nsGkAtoms::_tag,            \
+      SVGContentCreatorFunction(NS_NewSVG##_classname##Element));
+#define SVG_FROM_PARSER_TAG(_tag, _classname) \
+  sTagAtomTable->InsertOrUpdate(              \
+      nsGkAtoms::_tag,                        \
+      SVGContentCreatorFunction(NS_NewSVG##_classname##Element));
+#include "SVGTagList.h"
+#undef SVG_TAG
+#undef SVG_FROM_PARSER_TAG
+}
+
+void SVGElementFactory::Shutdown() { sTagAtomTable = nullptr; }
+
+nsresult NS_NewSVGElement(Element** aResult,
+                          already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
+                          FromParser aFromParser) {
+  NS_ASSERTION(sTagAtomTable, "no lookup table, needs SVGElementFactory::Init");
+
+  RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
+  nsAtom* name = ni->NameAtom();
+
+  NS_ASSERTION(
+      ni->NamespaceEquals(kNameSpaceID_SVG),
+      "Trying to create SVG elements that aren't in the SVG namespace");
+
+  SVGContentCreatorFunction cb = sTagAtomTable->Get(name);
+  if (cb) {
+    nsCOMPtr<nsIContent> content;
+    nsresult rv = cb(getter_AddRefs(content), ni.forget(), aFromParser);
+    *aResult = content.forget().take()->AsElement();
+    return rv;
+  }
+
+  // if we don't know what to create, just create a standard svg element:
+  return NS_NewSVGElement(aResult, ni.forget());
+}
+
+nsresult NS_NewSVGUnknownElement(
+    nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
+    FromParser aFromParser) {
+  RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
+  nsCOMPtr<Element> element;
+  nsresult rv = NS_NewSVGElement(getter_AddRefs(element), ni.forget());
+  element.forget(aResult);
+  return rv;
+}