/* 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/CORSMode.h"
#include "mozilla/dom/SRIMetadata.h"
#include "nsIReferrerInfo.h"

class nsIPrincipal;
class nsIURI;

namespace mozilla {
class StyleSheet;
struct StyleStylesheetContents;
enum class StyleOrigin : uint8_t;
struct URLExtraData;

/**
 * Struct for data common to CSSStyleSheetInner and ServoStyleSheet.
 */
struct StyleSheetInfo final {
  using ReferrerPolicy = dom::ReferrerPolicy;

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

  // FIXME(emilio): aCopy should be const.
  StyleSheetInfo(StyleSheetInfo& aCopy, StyleSheet* aPrimarySheet);

  ~StyleSheetInfo();

  StyleSheetInfo* CloneFor(StyleSheet* aPrimarySheet);

  void AddSheet(StyleSheet* aSheet);
  // Remove the specified sheet. If this returns true, then the last
  // StyleSheet was removed and this object should be deleted.
  // It is the caller's responsibility to perform this deletion.
  [[nodiscard]] bool RemoveSheet(StyleSheet* aSheet);

  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;

  const CORSMode mCORSMode;
  dom::SRIMetadata mIntegrity;
  // https://drafts.csswg.org/cssom/#concept-css-style-sheet-origin-clean-flag
  bool mOriginClean = true;

  // Pointer to the 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.
  nsTArray<RefPtr<StyleSheet>> mChildren;

  // If a SourceMap or X-SourceMap response header is seen, this is
  // the value.  If both are seen, SourceMap is preferred.  If neither
  // is seen, this will be an empty string.
  nsCString mSourceMapURL;

  RefPtr<const StyleStylesheetContents> mContents;

  // HACK: This must be the after any member rust accesses in order to not cause
  // issues on i686-android. Bindgen generates an opaque blob of [u64; N] for
  // types it doesn't understand like AutoTArray, but turns out u64 is not
  // 8-byte aligned on this arch (wtf), which would cause other members rust
  // cares about to be misaligned.
  AutoTArray<StyleSheet*, 8> mSheets;

#ifdef DEBUG
  bool mPrincipalSet = false;
#endif
};

}  // namespace mozilla

#endif  // mozilla_StyleSheetInfo_h