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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /dom/svg/SVGTests.cpp | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | dom/svg/SVGTests.cpp | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/dom/svg/SVGTests.cpp b/dom/svg/SVGTests.cpp new file mode 100644 index 0000000000..dd9f6e540c --- /dev/null +++ b/dom/svg/SVGTests.cpp @@ -0,0 +1,202 @@ +/* -*- 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 "mozilla/dom/SVGTests.h" +#include "DOMSVGStringList.h" +#include "nsIContent.h" +#include "nsIContentInlines.h" +#include "mozilla/dom/SVGSwitchElement.h" +#include "nsCharSeparatedTokenizer.h" +#include "nsStyleUtil.h" +#include "mozilla/Preferences.h" + +namespace mozilla::dom { + +nsStaticAtom* const SVGTests::sStringListNames[2] = { + nsGkAtoms::requiredExtensions, + nsGkAtoms::systemLanguage, +}; + +SVGTests::SVGTests() { + mStringListAttributes[LANGUAGE].SetIsCommaSeparated(true); +} + +already_AddRefed<DOMSVGStringList> SVGTests::RequiredExtensions() { + return DOMSVGStringList::GetDOMWrapper(&mStringListAttributes[EXTENSIONS], + AsSVGElement(), true, EXTENSIONS); +} + +already_AddRefed<DOMSVGStringList> SVGTests::SystemLanguage() { + return DOMSVGStringList::GetDOMWrapper(&mStringListAttributes[LANGUAGE], + AsSVGElement(), true, LANGUAGE); +} + +bool SVGTests::HasExtension(const nsAString& aExtension) const { +#define SVG_SUPPORTED_EXTENSION(str) \ + if (aExtension.EqualsLiteral(str)) return true; + SVG_SUPPORTED_EXTENSION("http://www.w3.org/1999/xhtml") + nsNameSpaceManager* nameSpaceManager = nsNameSpaceManager::GetInstance(); + if (AsSVGElement()->IsInChromeDocument() || + !nameSpaceManager->mMathMLDisabled) { + SVG_SUPPORTED_EXTENSION("http://www.w3.org/1998/Math/MathML") + } +#undef SVG_SUPPORTED_EXTENSION + + return false; +} + +bool SVGTests::IsConditionalProcessingAttribute( + const nsAtom* aAttribute) const { + for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) { + if (aAttribute == sStringListNames[i]) { + return true; + } + } + return false; +} + +int32_t SVGTests::GetBestLanguagePreferenceRank( + const nsAString& aAcceptLangs) const { + if (!mStringListAttributes[LANGUAGE].IsExplicitlySet()) { + return -2; + } + + int32_t lowestRank = -1; + + for (uint32_t i = 0; i < mStringListAttributes[LANGUAGE].Length(); i++) { + int32_t index = 0; + for (const nsAString& languageToken : + nsCharSeparatedTokenizer(aAcceptLangs, ',').ToRange()) { + bool exactMatch = languageToken.Equals(mStringListAttributes[LANGUAGE][i], + nsCaseInsensitiveStringComparator); + bool prefixOnlyMatch = + !exactMatch && nsStyleUtil::DashMatchCompare( + mStringListAttributes[LANGUAGE][i], languageToken, + nsCaseInsensitiveStringComparator); + if (index == 0 && exactMatch) { + // best possible match + return 0; + } + if ((exactMatch || prefixOnlyMatch) && + (lowestRank == -1 || 2 * index + prefixOnlyMatch < lowestRank)) { + lowestRank = 2 * index + prefixOnlyMatch; + } + ++index; + } + } + return lowestRank; +} + +bool SVGTests::PassesConditionalProcessingTestsIgnoringSystemLanguage() const { + // Required Extensions + // + // The requiredExtensions attribute defines a list of required language + // extensions. Language extensions are capabilities within a user agent that + // go beyond the feature set defined in the SVG specification. + // Each extension is identified by a URI reference. + // For now, claim that mozilla's SVG implementation supports XHTML and MathML. + if (mStringListAttributes[EXTENSIONS].IsExplicitlySet()) { + if (mStringListAttributes[EXTENSIONS].IsEmpty()) { + return false; + } + for (uint32_t i = 0; i < mStringListAttributes[EXTENSIONS].Length(); i++) { + if (!HasExtension(mStringListAttributes[EXTENSIONS][i])) { + return false; + } + } + } + return true; +} + +bool SVGTests::PassesConditionalProcessingTests() const { + if (!PassesConditionalProcessingTestsIgnoringSystemLanguage()) { + return false; + } + + // systemLanguage + // + // Evaluates to "true" if one of the languages indicated by user preferences + // exactly equals one of the languages given in the value of this parameter, + // or if one of the languages indicated by user preferences exactly equals a + // prefix of one of the languages given in the value of this parameter such + // that the first tag character following the prefix is "-". + if (mStringListAttributes[LANGUAGE].IsExplicitlySet()) { + if (mStringListAttributes[LANGUAGE].IsEmpty()) { + return false; + } + + // Get our language preferences + nsAutoString acceptLangs; + Preferences::GetLocalizedString("intl.accept_languages", acceptLangs); + + if (acceptLangs.IsEmpty()) { + NS_WARNING( + "no default language specified for systemLanguage conditional test"); + return false; + } + + for (uint32_t i = 0; i < mStringListAttributes[LANGUAGE].Length(); i++) { + nsCharSeparatedTokenizer languageTokenizer(acceptLangs, ','); + while (languageTokenizer.hasMoreTokens()) { + if (nsStyleUtil::DashMatchCompare(mStringListAttributes[LANGUAGE][i], + languageTokenizer.nextToken(), + nsCaseInsensitiveStringComparator)) { + return true; + } + } + } + return false; + } + + return true; +} + +bool SVGTests::ParseConditionalProcessingAttribute(nsAtom* aAttribute, + const nsAString& aValue, + nsAttrValue& aResult) { + for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) { + if (aAttribute == sStringListNames[i]) { + nsresult rv = mStringListAttributes[i].SetValue(aValue); + if (NS_FAILED(rv)) { + mStringListAttributes[i].Clear(); + } + MaybeInvalidate(); + return true; + } + } + return false; +} + +void SVGTests::UnsetAttr(const nsAtom* aAttribute) { + for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) { + if (aAttribute == sStringListNames[i]) { + mStringListAttributes[i].Clear(); + MaybeInvalidate(); + return; + } + } +} + +nsStaticAtom* SVGTests::GetAttrName(uint8_t aAttrEnum) const { + return sStringListNames[aAttrEnum]; +} + +void SVGTests::GetAttrValue(uint8_t aAttrEnum, nsAttrValue& aValue) const { + MOZ_ASSERT(aAttrEnum < ArrayLength(sStringListNames), + "aAttrEnum out of range"); + aValue.SetTo(mStringListAttributes[aAttrEnum], nullptr); +} + +void SVGTests::MaybeInvalidate() { + nsIContent* parent = AsSVGElement()->GetFlattenedTreeParent(); + + if (parent && + parent->NodeInfo()->Equals(nsGkAtoms::svgSwitch, kNameSpaceID_SVG)) { + static_cast<dom::SVGSwitchElement*>(parent)->MaybeInvalidate(); + } +} + +} // namespace mozilla::dom |