toolkit/components/sessionstore/BrowserSessionStore.h
author Lee Salzman <lsalzman@mozilla.com>
Sat, 28 Jan 2023 11:24:54 +0000
changeset 650885 f4f63f0138feb7535fa58c3f77fd8a51361371d8
parent 614603 1fcfc31bc6c35aababed1abb36efe5ca1b8f3fc5
permissions -rw-r--r--
Bug 1812970 - Avoid using Skia's deprecated clip ops. r=jrmuizel Skia upstream removed deprecated clip ops that could be used to replace the clipping stack and bypass clips. We shouldn't really need to do this anymore, as we can work around it just using public APIs. The only SkCanvas operation that allows us to bypass clipping is writePixels, which still allows us to implement CopySurface/putImageData. Other instances where we were using the replace op for DrawTargetWebgl layering support can just be worked around by creating a separate DrawTargetSkia pointing to the same pixel data, but on which no clipping or transforms are applied so that we can freely do drawing operations on it to the base layer pixel data regardless of any user-applied clipping. Differential Revision: https://phabricator.services.mozilla.com/D168039

/* -*- 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_dom_SessionStore_h
#define mozilla_dom_SessionStore_h

#include "nsWrapperCache.h"

#include "mozilla/Maybe.h"

struct nsPoint;

namespace mozilla::dom {

class CanonicalBrowsingContext;
class GlobalObject;
class SessionStoreFormData;
class SessionStoreScrollData;
class WindowGlobalParent;

namespace sessionstore {
class FormData;
}

class BrowserSessionStore final {
 public:
  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(BrowserSessionStore)
  NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(BrowserSessionStore)

  static already_AddRefed<BrowserSessionStore> GetOrCreate(
      CanonicalBrowsingContext* aBrowsingContext);

  SessionStoreFormData* GetFormdata();
  SessionStoreScrollData* GetScroll();

  void UpdateSessionStore(CanonicalBrowsingContext* aBrowsingContext,
                          const Maybe<sessionstore::FormData>& aFormData,
                          const Maybe<nsPoint>& aScrollPosition,
                          uint32_t aEpoch);

  void RemoveSessionStore(CanonicalBrowsingContext* aBrowsingContext);

 private:
  explicit BrowserSessionStore(CanonicalBrowsingContext* aBrowsingContext);
  virtual ~BrowserSessionStore();

  RefPtr<CanonicalBrowsingContext> mBrowsingContext;
  RefPtr<SessionStoreFormData> mFormData;
  RefPtr<SessionStoreScrollData> mScrollData;
};

}  // namespace mozilla::dom

#endif  // mozilla_dom_SessionStore_h