From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- dom/svg/SVGSwitchElement.cpp | 159 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 dom/svg/SVGSwitchElement.cpp (limited to 'dom/svg/SVGSwitchElement.cpp') diff --git a/dom/svg/SVGSwitchElement.cpp b/dom/svg/SVGSwitchElement.cpp new file mode 100644 index 0000000000..d7609bd1ee --- /dev/null +++ b/dom/svg/SVGSwitchElement.cpp @@ -0,0 +1,159 @@ +/* -*- 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/SVGSwitchElement.h" + +#include "nsLayoutUtils.h" +#include "mozilla/Preferences.h" +#include "mozilla/SVGUtils.h" +#include "mozilla/dom/SVGSwitchElementBinding.h" + +class nsIFrame; + +NS_IMPL_NS_NEW_SVG_ELEMENT(Switch) + +namespace mozilla { +namespace dom { + +JSObject* SVGSwitchElement::WrapNode(JSContext* aCx, + JS::Handle aGivenProto) { + return SVGSwitchElement_Binding::Wrap(aCx, this, aGivenProto); +} + +//---------------------------------------------------------------------- +// nsISupports methods + +NS_IMPL_CYCLE_COLLECTION_INHERITED(SVGSwitchElement, SVGSwitchElementBase, + mActiveChild) + +NS_IMPL_ADDREF_INHERITED(SVGSwitchElement, SVGSwitchElementBase) +NS_IMPL_RELEASE_INHERITED(SVGSwitchElement, SVGSwitchElementBase) + +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SVGSwitchElement) +NS_INTERFACE_MAP_END_INHERITING(SVGSwitchElementBase) + +//---------------------------------------------------------------------- +// Implementation + +SVGSwitchElement::SVGSwitchElement( + already_AddRefed&& aNodeInfo) + : SVGSwitchElementBase(std::move(aNodeInfo)) {} + +void SVGSwitchElement::MaybeInvalidate() { + // We must not change mActiveChild until after + // InvalidateAndScheduleBoundsUpdate has been called, otherwise + // it will not correctly invalidate the old mActiveChild area. + + nsIContent* newActiveChild = FindActiveChild(); + + if (newActiveChild == mActiveChild) { + return; + } + + nsIFrame* frame = GetPrimaryFrame(); + if (frame) { + nsLayoutUtils::PostRestyleEvent(this, RestyleHint{0}, + nsChangeHint_InvalidateRenderingObservers); + SVGUtils::ScheduleReflowSVG(frame); + } + + mActiveChild = newActiveChild; +} + +//---------------------------------------------------------------------- +// nsINode methods + +NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGSwitchElement) + +//---------------------------------------------------------------------- +// nsINode methods + +nsresult SVGSwitchElement::InsertChildBefore(nsIContent* aKid, + nsIContent* aBeforeThis, + bool aNotify) { + nsresult rv = + SVGSwitchElementBase::InsertChildBefore(aKid, aBeforeThis, aNotify); + if (NS_SUCCEEDED(rv)) { + MaybeInvalidate(); + } + return rv; +} + +void SVGSwitchElement::RemoveChildNode(nsIContent* aKid, bool aNotify) { + SVGSwitchElementBase::RemoveChildNode(aKid, aNotify); + MaybeInvalidate(); +} + +//---------------------------------------------------------------------- +// nsIContent methods + +NS_IMETHODIMP_(bool) +SVGSwitchElement::IsAttributeMapped(const nsAtom* name) const { + static const MappedAttributeEntry* const map[] = {sFEFloodMap, + sFiltersMap, + sFontSpecificationMap, + sGradientStopMap, + sLightingEffectsMap, + sMarkersMap, + sTextContentElementsMap, + sViewportsMap}; + + return FindAttributeDependence(name, map) || + SVGSwitchElementBase::IsAttributeMapped(name); +} + +//---------------------------------------------------------------------- +// Implementation Helpers: + +nsIContent* SVGSwitchElement::FindActiveChild() const { + nsAutoString acceptLangs; + Preferences::GetLocalizedString("intl.accept_languages", acceptLangs); + + int32_t bestLanguagePreferenceRank = -1; + nsIContent* bestChild = nullptr; + nsIContent* defaultChild = nullptr; + for (nsIContent* child = nsINode::GetFirstChild(); child; + child = child->GetNextSibling()) { + if (!child->IsElement()) { + continue; + } + nsCOMPtr tests(do_QueryInterface(child)); + if (tests) { + if (tests->PassesConditionalProcessingTestsIgnoringSystemLanguage()) { + int32_t languagePreferenceRank = + tests->GetBestLanguagePreferenceRank(acceptLangs); + switch (languagePreferenceRank) { + case 0: + // best possible match + return child; + case -1: + // no match + break; + case -2: + // no systemLanguage attribute. If there's nothing better + // we'll use the first such child. + if (!defaultChild) { + defaultChild = child; + } + break; + default: + if (bestLanguagePreferenceRank == -1 || + languagePreferenceRank < bestLanguagePreferenceRank) { + bestLanguagePreferenceRank = languagePreferenceRank; + bestChild = child; + } + break; + } + } + } else if (!bestChild) { + bestChild = child; + } + } + return bestChild ? bestChild : defaultChild; +} + +} // namespace dom +} // namespace mozilla -- cgit v1.2.3