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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 */
/* thread-safe container of information for resolving url values */
#ifndef mozilla_URLExtraData_h
#define mozilla_URLExtraData_h
#include <utility>
#include "mozilla/StaticPtr.h"
#include "mozilla/UserAgentStyleSheetID.h"
#include "nsCOMPtr.h"
#include "nsIPrincipal.h"
#include "nsIReferrerInfo.h"
#include "nsIURI.h"
namespace mozilla {
struct URLExtraData {
static bool ChromeRulesEnabled(nsIURI* aURI);
URLExtraData(already_AddRefed<nsIURI> aBaseURI,
already_AddRefed<nsIReferrerInfo> aReferrerInfo,
already_AddRefed<nsIPrincipal> aPrincipal)
: mBaseURI(std::move(aBaseURI)),
mPrincipal(std::move(aPrincipal)) {
// When we hold the URI data of a style sheet, referrer is always
// equal to the sheet URI.
nsCOMPtr<nsIURI> referrer = mReferrerInfo->GetOriginalReferrer();
mChromeRulesEnabled = ChromeRulesEnabled(referrer);
URLExtraData(nsIURI* aBaseURI, nsIReferrerInfo* aReferrerInfo,
nsIPrincipal* aPrincipal)
: URLExtraData(do_AddRef(aBaseURI), do_AddRef(aReferrerInfo),
do_AddRef(aPrincipal)) {}
nsIURI* BaseURI() const { return mBaseURI; }
nsIReferrerInfo* ReferrerInfo() const { return mReferrerInfo; }
nsIPrincipal* Principal() const { return mPrincipal; }
bool ChromeRulesEnabled() const { return mChromeRulesEnabled; }
static URLExtraData* Dummy() {
return sDummy;
static URLExtraData* DummyChrome() {
return sDummyChrome;
static void Init();
static void Shutdown();
// URLExtraData objects that shared style sheets use a sheet ID index to
// refer to.
static StaticRefPtr<URLExtraData>
nsCOMPtr<nsIURI> mBaseURI;
nsCOMPtr<nsIReferrerInfo> mReferrerInfo;
nsCOMPtr<nsIPrincipal> mPrincipal;
bool mChromeRulesEnabled;
static StaticRefPtr<URLExtraData> sDummy;
static StaticRefPtr<URLExtraData> sDummyChrome;
} // namespace mozilla
#endif // mozilla_URLExtraData_h