diff options
Diffstat (limited to 'dom/svg/SVGStyleElement.cpp')
| -rw-r--r-- | dom/svg/SVGStyleElement.cpp | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/dom/svg/SVGStyleElement.cpp b/dom/svg/SVGStyleElement.cpp new file mode 100644 index 0000000000..999c240b65 --- /dev/null +++ b/dom/svg/SVGStyleElement.cpp @@ -0,0 +1,209 @@ +/* -*- 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/SVGStyleElement.h" + +#include "mozilla/RefPtr.h" +#include "mozilla/dom/Document.h" +#include "mozilla/dom/Element.h" +#include "mozilla/dom/FetchPriority.h" +#include "mozilla/dom/ReferrerInfo.h" +#include "mozilla/dom/SVGStyleElementBinding.h" +#include "nsCOMPtr.h" +#include "nsContentUtils.h" + +NS_IMPL_NS_NEW_SVG_ELEMENT(Style) + +namespace mozilla::dom { + +JSObject* SVGStyleElement::WrapNode(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return SVGStyleElement_Binding::Wrap(aCx, this, aGivenProto); +} + +//---------------------------------------------------------------------- +// nsISupports methods + +NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(SVGStyleElement, + SVGStyleElementBase, + nsIMutationObserver) + +NS_IMPL_CYCLE_COLLECTION_CLASS(SVGStyleElement) + +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SVGStyleElement, + SVGStyleElementBase) + tmp->LinkStyle::Traverse(cb); +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END + +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SVGStyleElement, + SVGStyleElementBase) + tmp->LinkStyle::Unlink(); +NS_IMPL_CYCLE_COLLECTION_UNLINK_END + +//---------------------------------------------------------------------- +// Implementation + +SVGStyleElement::SVGStyleElement( + already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) + : SVGStyleElementBase(std::move(aNodeInfo)) { + AddMutationObserver(this); + SetEnabledCallbacks(kCharacterDataChanged | kContentAppended | + kContentInserted | kContentRemoved); +} + +//---------------------------------------------------------------------- +// nsINode methods + +NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGStyleElement) + +//---------------------------------------------------------------------- +// nsIContent methods + +nsresult SVGStyleElement::BindToTree(BindContext& aContext, nsINode& aParent) { + nsresult rv = SVGStyleElementBase::BindToTree(aContext, aParent); + NS_ENSURE_SUCCESS(rv, rv); + LinkStyle::BindToTree(); + return rv; +} + +void SVGStyleElement::UnbindFromTree(bool aNullParent) { + nsCOMPtr<Document> oldDoc = GetUncomposedDoc(); + ShadowRoot* oldShadow = GetContainingShadow(); + SVGStyleElementBase::UnbindFromTree(aNullParent); + Unused << UpdateStyleSheetInternal(oldDoc, oldShadow); +} + +void SVGStyleElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName, + const nsAttrValue* aValue, + const nsAttrValue* aOldValue, + nsIPrincipal* aMaybeScriptedPrincipal, + bool aNotify) { + if (aNameSpaceID == kNameSpaceID_None) { + if (aName == nsGkAtoms::title || aName == nsGkAtoms::media || + aName == nsGkAtoms::type) { + Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes); + } + } + + return SVGStyleElementBase::AfterSetAttr( + aNameSpaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify); +} + +bool SVGStyleElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute, + const nsAString& aValue, + nsIPrincipal* aMaybeScriptedPrincipal, + nsAttrValue& aResult) { + if (aNamespaceID == kNameSpaceID_None && + aAttribute == nsGkAtoms::crossorigin) { + ParseCORSValue(aValue, aResult); + return true; + } + + return SVGStyleElementBase::ParseAttribute(aNamespaceID, aAttribute, aValue, + aMaybeScriptedPrincipal, aResult); +} + +//---------------------------------------------------------------------- +// nsIMutationObserver methods + +void SVGStyleElement::CharacterDataChanged(nsIContent* aContent, + const CharacterDataChangeInfo&) { + ContentChanged(aContent); +} + +void SVGStyleElement::ContentAppended(nsIContent* aFirstNewContent) { + ContentChanged(aFirstNewContent->GetParent()); +} + +void SVGStyleElement::ContentInserted(nsIContent* aChild) { + ContentChanged(aChild); +} + +void SVGStyleElement::ContentRemoved(nsIContent* aChild, + nsIContent* aPreviousSibling) { + ContentChanged(aChild); +} + +void SVGStyleElement::ContentChanged(nsIContent* aContent) { + if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) { + Unused << UpdateStyleSheetInternal(nullptr, nullptr); + } +} + +//---------------------------------------------------------------------- + +void SVGStyleElement::GetMedia(nsAString& aMedia) { + GetAttr(nsGkAtoms::media, aMedia); +} + +void SVGStyleElement::SetMedia(const nsAString& aMedia, ErrorResult& rv) { + SetAttr(nsGkAtoms::media, aMedia, rv); +} + +void SVGStyleElement::GetType(nsAString& aType) { + GetAttr(nsGkAtoms::type, aType); +} + +void SVGStyleElement::SetType(const nsAString& aType, ErrorResult& rv) { + SetAttr(nsGkAtoms::type, aType, rv); +} + +void SVGStyleElement::GetTitle(nsAString& aTitle) { + GetAttr(nsGkAtoms::title, aTitle); +} + +void SVGStyleElement::SetTitle(const nsAString& aTitle, ErrorResult& rv) { + SetAttr(nsGkAtoms::title, aTitle, rv); +} + +bool SVGStyleElement::Disabled() const { + StyleSheet* ss = GetSheet(); + return ss && ss->Disabled(); +} + +void SVGStyleElement::SetDisabled(bool aDisabled) { + if (StyleSheet* ss = GetSheet()) { + ss->SetDisabled(aDisabled); + } +} + +//---------------------------------------------------------------------- +// nsStyleLinkElement methods + +Maybe<LinkStyle::SheetInfo> SVGStyleElement::GetStyleSheetInfo() { + if (!IsCSSMimeTypeAttributeForStyleElement(*this)) { + return Nothing(); + } + + nsAutoString title; + nsAutoString media; + GetTitleAndMediaForElement(*this, title, media); + + return Some(SheetInfo{ + *OwnerDoc(), + this, + nullptr, + // FIXME(bug 1459822): Why doesn't this need a principal, but + // HTMLStyleElement does? + nullptr, + // FIXME(bug 1459822): Why does this need a crossorigin attribute, but + // HTMLStyleElement doesn't? + MakeAndAddRef<ReferrerInfo>(*this), + AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin)), + title, + media, + /* integrity = */ u""_ns, + /* nsStyleUtil::CSPAllowsInlineStyle takes care of nonce checking for + inline styles. Bug 1607011 */ + /* nonce = */ u""_ns, + HasAlternateRel::No, + IsInline::Yes, + IsExplicitlyEnabled::No, + FetchPriority::Auto, + }); +} + +} // namespace mozilla::dom |