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ad01a10a3b
Note that this patch only transforms the use of the nsDataHashtable type alias to a directly equivalent use of nsTHashMap. It does not change the specification of the hash key type to make use of the key class deduction that nsTHashMap allows for in some cases. That can be done in a separate step, but requires more attention. Differential Revision: https://phabricator.services.mozilla.com/D106008
106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "SVGElementFactory.h"
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#include "nsGkAtoms.h"
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#include "nsIContent.h"
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#include "mozilla/dom/NodeInfo.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/FromParser.h"
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#include "mozilla/StaticPtr.h"
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#include "nsTHashMap.h"
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#include "nsHashKeys.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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// Hash table that maps nsAtom* SVG tags to a SVGContentCreatorFunction.
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using TagAtomTable =
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nsTHashMap<nsPtrHashKey<nsAtom>, SVGContentCreatorFunction>;
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StaticAutoPtr<TagAtomTable> sTagAtomTable;
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#define SVG_TAG(_tag, _classname) \
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nsresult NS_NewSVG##_classname##Element( \
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nsIContent** aResult, \
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo); \
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\
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nsresult NS_NewSVG##_classname##Element( \
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nsIContent** aResult, \
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo, \
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FromParser aFromParser) { \
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return NS_NewSVG##_classname##Element(aResult, std::move(aNodeInfo)); \
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}
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#define SVG_FROM_PARSER_TAG(_tag, _classname)
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#include "SVGTagList.h"
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#undef SVG_TAG
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#undef SVG_FROM_PARSER_TAG
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nsresult NS_NewSVGElement(Element** aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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enum SVGTag {
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#define SVG_TAG(_tag, _classname) eSVGTag_##_tag,
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#define SVG_FROM_PARSER_TAG(_tag, _classname) eSVGTag_##_tag,
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#include "SVGTagList.h"
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#undef SVG_TAG
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#undef SVG_FROM_PARSER_TAG
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eSVGTag_Count
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};
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void SVGElementFactory::Init() {
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sTagAtomTable = new TagAtomTable(64);
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#define SVG_TAG(_tag, _classname) \
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sTagAtomTable->InsertOrUpdate( \
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nsGkAtoms::_tag, \
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SVGContentCreatorFunction(NS_NewSVG##_classname##Element));
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#define SVG_FROM_PARSER_TAG(_tag, _classname) \
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sTagAtomTable->InsertOrUpdate( \
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nsGkAtoms::_tag, \
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SVGContentCreatorFunction(NS_NewSVG##_classname##Element));
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#include "SVGTagList.h"
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#undef SVG_TAG
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#undef SVG_FROM_PARSER_TAG
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}
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void SVGElementFactory::Shutdown() { sTagAtomTable = nullptr; }
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nsresult NS_NewSVGElement(Element** aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser) {
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NS_ASSERTION(sTagAtomTable, "no lookup table, needs SVGElementFactory::Init");
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RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
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nsAtom* name = ni->NameAtom();
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NS_ASSERTION(
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ni->NamespaceEquals(kNameSpaceID_SVG),
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"Trying to create SVG elements that aren't in the SVG namespace");
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SVGContentCreatorFunction cb = sTagAtomTable->Get(name);
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if (cb) {
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nsCOMPtr<nsIContent> content;
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nsresult rv = cb(getter_AddRefs(content), ni.forget(), aFromParser);
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*aResult = content.forget().take()->AsElement();
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return rv;
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}
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// if we don't know what to create, just create a standard svg element:
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return NS_NewSVGElement(aResult, ni.forget());
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}
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nsresult NS_NewSVGUnknownElement(
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nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser) {
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RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
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nsCOMPtr<Element> element;
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nsresult rv = NS_NewSVGElement(getter_AddRefs(element), ni.forget());
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element.forget(aResult);
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return rv;
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}
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