StyleSheetInfo.h - mozsearch

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/* 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/css/SheetParsingMode.h"

#include "mozilla/dom/SRIMetadata.h"

#include "nsIReferrerInfo.h"

class nsIPrincipal;

class nsIURI;

namespace mozilla {

class StyleSheet;

struct StyleStylesheetContents;

struct URLExtraData;

/**

 * Struct for data common to CSSStyleSheetInner and ServoStyleSheet.

*/

struct StyleSheetInfo final {

  using ReferrerPolicy = dom::ReferrerPolicy;

  StyleSheetInfo(CORSMode aCORSMode, const dom::SRIMetadata& aIntegrity,

                 css::SheetParsingMode aParsingMode);

  // FIXME(emilio): aCopy should be const.

  StyleSheetInfo(StyleSheetInfo& aCopy, StyleSheet* aPrimarySheet);

  ~StyleSheetInfo();

  StyleSheetInfo* CloneFor(StyleSheet* aPrimarySheet);

  void AddSheet(StyleSheet* aSheet);

  void 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