XMLStylesheetProcessingInstruction.h

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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/. */

#ifndef mozilla_dom_XMLStylesheetProcessingInstruction_h

#define mozilla_dom_XMLStylesheetProcessingInstruction_h

#include "mozilla/Attributes.h"

#include "mozilla/Unused.h"

#include "mozilla/dom/LinkStyle.h"

#include "mozilla/dom/ProcessingInstruction.h"

#include "nsIURI.h"

namespace mozilla::dom {

class XMLStylesheetProcessingInstruction final : public ProcessingInstruction,

                                                 public LinkStyle {

 public:

  XMLStylesheetProcessingInstruction(

      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,

      const nsAString& aData)

      : ProcessingInstruction(std::move(aNodeInfo), aData) {}

  XMLStylesheetProcessingInstruction(nsNodeInfoManager* aNodeInfoManager,

                                     const nsAString& aData)

      : ProcessingInstruction(

            aNodeInfoManager->GetNodeInfo(

                nsGkAtoms::processingInstructionTagName, nullptr,

                kNameSpaceID_None, PROCESSING_INSTRUCTION_NODE,

                nsGkAtoms::xml_stylesheet),

            aData) {}

  // CC

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XMLStylesheetProcessingInstruction,

                                           ProcessingInstruction)

  // nsINode

  virtual void SetNodeValueInternal(const nsAString& aNodeValue,

                                    mozilla::ErrorResult& aError) override;

  // nsIContent

  virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;

  virtual void UnbindFromTree(UnbindContext&) override;

/**

   * Tells this processing instruction to use a different base URI. This is used

   * for proper loading of xml-stylesheet processing instructions in XUL

   * overlays and is only currently used by nsXMLStylesheetPI.

   * @param aNewBaseURI the new base URI, nullptr to use the default base URI.

*/

  void OverrideBaseURI(nsIURI* aNewBaseURI);

  // LinkStyle

  void GetCharset(nsAString& aCharset) override;

  virtual void SetData(const nsAString& aData,

                       mozilla::ErrorResult& rv) override {

    CharacterData::SetData(aData, rv);

    if (rv.Failed()) {

      return;

    Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);

 protected:

  virtual ~XMLStylesheetProcessingInstruction();

  nsCOMPtr<nsIURI> mOverriddenBaseURI;

  nsIContent& AsContent() final { return *this; }

  const LinkStyle* AsLinkStyle() const final { return this; }

  Maybe<SheetInfo> GetStyleSheetInfo() final;

  already_AddRefed<CharacterData> CloneDataNode(

      mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const final;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_XMLStylesheetProcessingInstruction_h