/* -*- 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/Element.h"

#include "mozilla/dom/SVGStyleElement.h"

#include "nsContentUtils.h"

#include "mozilla/dom/SVGStyleElementBinding.h"

NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Style)

namespace mozilla {

namespace 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,

                                             nsIStyleSheetLinkingElement,

                                             nsIMutationObserver)

NS_IMPL_CYCLE_COLLECTION_CLASS(SVGStyleElement)

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SVGStyleElement,

                                                  SVGStyleElementBase)

  tmp->nsStyleLinkElement::Traverse(cb);

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SVGStyleElement,

                                                SVGStyleElementBase)

  tmp->nsStyleLinkElement::Unlink();

NS_IMPL_CYCLE_COLLECTION_UNLINK_END

//----------------------------------------------------------------------

// Implementation

SVGStyleElement::SVGStyleElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)

  : SVGStyleElementBase(std::move(aNodeInfo))

{

  AddMutationObserver(this);

}

SVGStyleElement::~SVGStyleElement()

{

}

//----------------------------------------------------------------------

// nsINode methods

NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGStyleElement)

//----------------------------------------------------------------------

// nsIContent methods

nsresult

SVGStyleElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,

                            nsIContent* aBindingParent)

{

  nsresult rv = SVGStyleElementBase::BindToTree(aDocument, aParent,

                                                aBindingParent);

  NS_ENSURE_SUCCESS(rv, rv);

  void (SVGStyleElement::*update)() = &SVGStyleElement::UpdateStyleSheetInternal;

  nsContentUtils::AddScriptRunner(

    NewRunnableMethod("dom::SVGStyleElement::BindToTree", this, update));

  return rv;

}

void

SVGStyleElement::UnbindFromTree(bool aDeep, bool aNullParent)

{

  nsCOMPtr<nsIDocument> oldDoc = GetUncomposedDoc();

  ShadowRoot* oldShadow = GetContainingShadow();

  SVGStyleElementBase::UnbindFromTree(aDeep, aNullParent);

  Unused << UpdateStyleSheetInternal(oldDoc, oldShadow);

}

nsresult

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::GetXmlspace(nsAString & aXmlspace)

{

  GetAttr(kNameSpaceID_XML, nsGkAtoms::space, aXmlspace);

}

void

SVGStyleElement::SetXmlspace(const nsAString & aXmlspace, ErrorResult& rv)

{

  rv = SetAttr(kNameSpaceID_XML, nsGkAtoms::space, aXmlspace, true);

}

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);

}

//----------------------------------------------------------------------

// nsStyleLinkElement methods

Maybe<nsStyleLinkElement::SheetInfo>

SVGStyleElement::GetStyleSheetInfo()

{

  if (!IsCSSMimeTypeAttribute(*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,

    net::ReferrerPolicy::RP_Unset,

    // FIXME(bug 1459822): Why does this need a crossorigin attribute, but

    // HTMLStyleElement doesn't?

    AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin)),

    title,

    media,

    HasAlternateRel::No,

    IsInline::Yes,

  });

}

} // namespace dom

} // namespace mozilla