dom/xbl/nsXBLPrototypeResources.h
author Cosmin Sabou <csabou@mozilla.com>
Sat, 02 Mar 2019 20:40:01 +0200
changeset 462132 bf3cbcc825276823afba2778333cf62cfa75039c
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 470538 7a1707c388c7c5cd787d8b0747aed226dbea773e
permissions -rw-r--r--
Backed out 16 changesets (bug 827976) for causing bug 1532054. a=backout Backed out changeset 54c0b12443ed (bug 827976) Backed out changeset 92b45080d080 (bug 827976) Backed out changeset 443087a359f9 (bug 827976) Backed out changeset f976c2d4cebb (bug 827976) Backed out changeset 66cffb171024 (bug 827976) Backed out changeset 845e1d0b2402 (bug 827976) Backed out changeset fd94066a1d76 (bug 827976) Backed out changeset e253b264e7bd (bug 827976) Backed out changeset 07ef335770a8 (bug 827976) Backed out changeset 9d3805d77b99 (bug 827976) Backed out changeset eed600ceb606 (bug 827976) Backed out changeset 3b64368cff52 (bug 827976) Backed out changeset 69d0378e0c09 (bug 827976) Backed out changeset 9203871a5c6f (bug 827976) Backed out changeset 96a507c818e2 (bug 827976) Backed out changeset e254496ff95b (bug 827976)

/* -*- 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 nsXBLPrototypeResources_h__
#define nsXBLPrototypeResources_h__

#include "mozilla/MemoryReporting.h"
#include "mozilla/StyleSheet.h"
#include "nsICSSLoaderObserver.h"

class nsAtom;
class nsIContent;
class nsXBLPrototypeBinding;
class nsXBLResourceLoader;
struct RawServoAuthorStyles;

namespace mozilla {
class CSSStyleSheet;
class ServoStyleSet;
class ServoStyleRuleMap;
}  // namespace mozilla

// *********************************************************************/
// The XBLPrototypeResources class

class nsXBLPrototypeResources {
 public:
  explicit nsXBLPrototypeResources(nsXBLPrototypeBinding* aBinding);
  ~nsXBLPrototypeResources();

  bool LoadResources(nsIContent* aBoundElement);
  void AddResource(nsAtom* aResourceType, const nsAString& aSrc);
  void AddResourceListener(nsIContent* aElement);
  nsresult FlushSkinSheets();

  nsresult Write(nsIObjectOutputStream* aStream);

  void Traverse(nsCycleCollectionTraversalCallback& cb);
  void Unlink();

  void ClearLoader();

  void AppendStyleSheet(mozilla::StyleSheet* aSheet);
  void RemoveStyleSheet(mozilla::StyleSheet* aSheet);
  void InsertStyleSheetAt(size_t aIndex, mozilla::StyleSheet* aSheet);

  mozilla::StyleSheet* StyleSheetAt(size_t aIndex) const {
    return mStyleSheetList[aIndex];
  }

  size_t SheetCount() const { return mStyleSheetList.Length(); }

  bool HasStyleSheets() const { return !mStyleSheetList.IsEmpty(); }

  void AppendStyleSheetsTo(nsTArray<mozilla::StyleSheet*>& aResult) const;

  const RawServoAuthorStyles* GetServoStyles() const {
    return mServoStyles.get();
  }

  void SyncServoStyles();

  mozilla::ServoStyleRuleMap* GetServoStyleRuleMap();

  // Updates the ServoStyleSet object that holds the result of cascading the
  // sheets in mStyleSheetList. Equivalent to GatherRuleProcessor(), but for
  // the Servo style backend.
  void ComputeServoStyles(const mozilla::ServoStyleSet& aMasterStyleSet);

  size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

 private:
  // A loader object. Exists only long enough to load resources, and then it
  // dies.
  RefPtr<nsXBLResourceLoader> mLoader;

  // A list of loaded stylesheets for this binding.
  //
  // FIXME(emilio): Remove when the old style system is gone, defer to
  // mServoStyles.
  nsTArray<RefPtr<mozilla::StyleSheet>> mStyleSheetList;

  // The result of cascading the XBL style sheets like mRuleProcessor, but
  // for the Servo style backend.
  mozilla::UniquePtr<RawServoAuthorStyles> mServoStyles;
  mozilla::UniquePtr<mozilla::ServoStyleRuleMap> mStyleRuleMap;
};

#endif