Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#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;
}