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StyleSheetInfo

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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_StyleSheetInfo_h
#define mozilla_StyleSheetInfo_h

#include "mozilla/dom/SRIMetadata.h"
#include "mozilla/net/ReferrerPolicy.h"
#include "mozilla/CORSMode.h"

#include "nsIURI.h"

namespace mozilla {
class StyleSheet;
} // namespace mozilla
class nsCSSRuleProcessor;
class nsIPrincipal;

namespace mozilla {

/**
 * Struct for data common to CSSStyleSheetInner and ServoStyleSheet.
 */
struct StyleSheetInfo
{
  typedef net::ReferrerPolicy ReferrerPolicy;

  StyleSheetInfo(CORSMode aCORSMode,
                 ReferrerPolicy aReferrerPolicy,
                 const dom::SRIMetadata& aIntegrity);

  StyleSheetInfo(StyleSheetInfo& aCopy,
                 StyleSheet* aPrimarySheet);

  virtual ~StyleSheetInfo() {}

  virtual void AddSheet(StyleSheet* aSheet);
  virtual void RemoveSheet(StyleSheet* aSheet);

  nsCOMPtr<nsIURI>       mSheetURI; // for error reports, etc.
  nsCOMPtr<nsIURI>       mOriginalSheetURI;  // for GetHref.  Can be null.
  nsCOMPtr<nsIURI>       mBaseURI; // for resolving relative URIs
  nsCOMPtr<nsIPrincipal> mPrincipal;
  CORSMode               mCORSMode;
  // The Referrer Policy of a stylesheet is used for its child sheets, so it is
  // stored here.
  ReferrerPolicy         mReferrerPolicy;
  dom::SRIMetadata       mIntegrity;
  bool                   mComplete;

  // Pointer to start of linked list of child sheets. This is all fundamentally
  // broken, because each of the child sheets has a unique parent... We can
  // only hope (and currently this is the case) that any time page JS can get
  // its hands on a child sheet that means we've already ensured unique infos
  // throughout its parent chain and things are good.
  RefPtr<StyleSheet>     mFirstChild;
  AutoTArray<StyleSheet*, 8> mSheets;

#ifdef DEBUG
  bool                   mPrincipalSet;
#endif
};

} // namespace mozilla

#endif // mozilla_StyleSheetInfo_h