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/* -*- 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 | kContentWillBeRemoved);
}
//----------------------------------------------------------------------
// nsINode methods
NS_IMPL_ELEMENT_CLONE(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(UnbindContext& aContext) {
nsCOMPtr<Document> oldDoc = GetUncomposedDoc();
ShadowRoot* oldShadow = GetContainingShadow();
SVGStyleElementBase::UnbindFromTree(aContext);
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,
const ContentAppendInfo&) {
ContentChanged(aFirstNewContent->GetParent());
}
void SVGStyleElement::ContentInserted(nsIContent* aChild,
const ContentInsertInfo&) {
ContentChanged(aChild);
}
void SVGStyleElement::ContentWillBeRemoved(nsIContent* aChild,
const ContentRemoveInfo& aInfo) {
if (!nsContentUtils::IsInSameAnonymousTree(this, aChild)) {
return;
}
if (aInfo.mBatchRemovalState && !aInfo.mBatchRemovalState->mIsFirst) {
return;
}
// Make sure to run this once the removal has taken place.
nsContentUtils::AddScriptRunner(NS_NewRunnableFunction(
"SVGStyleElement::ContentWillBeRemoved",
[self = RefPtr{this}] { self->UpdateStyleSheetInternal(); }));
}
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,
});
}
nsresult SVGStyleElement::CopyInnerTo(SVGStyleElement* aDest) {
nsresult rv = Element::CopyInnerTo(aDest);
NS_ENSURE_SUCCESS(rv, rv);
MaybeStartCopyStyleSheetTo(aDest, aDest->OwnerDoc());
return NS_OK;
}
} // namespace mozilla::dom
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