forked from mirrors/gecko-dev
df9bafbf73
When the session storage prefs are enabled, GeckoSession updateSessionState will provide the bundle of information, including zoom, scroll, and form data, to the delegate. Currently works for Fission and on Fenix. Differential Revision: https://phabricator.services.mozilla.com/D148215
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_SessionStoreScrollData_h
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#define mozilla_dom_SessionStoreScrollData_h
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#include "js/TypeDecls.h"
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#include "mozilla/WeakPtr.h"
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#include "nsPoint.h"
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#include "nsTArray.h"
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#include "nsWrapperCache.h"
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#include "mozilla/dom/WindowGlobalParent.h"
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#include "mozilla/dom/SessionStoreChangeListener.h"
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namespace mozilla::dom {
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class BrowsingContext;
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class WindowGlobalParent;
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class OwningByteStringOrObjectOrNull;
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struct SessionStoreZoomData;
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using SessionStoreZoom = mozilla::Tuple<float, uint32_t, uint32_t>;
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using MaybeSessionStoreZoom =
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mozilla::Maybe<mozilla::Tuple<float, uint32_t, uint32_t>>;
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class SessionStoreScrollData final : public nsISupports,
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public nsWrapperCache,
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public SupportsWeakPtr {
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public:
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using CollectedType = nsPoint;
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using LocationType = WeakPtr<SessionStoreScrollData>;
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using ChildrenArray = nsTArray<RefPtr<SessionStoreScrollData>>;
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(SessionStoreScrollData)
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nsISupports* GetParentObject() const;
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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void GetScroll(nsACString& aScroll) const;
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ChildrenArray& Children();
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void GetChildren(Nullable<ChildrenArray>& aChildren) const;
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void ToJSON(JSContext* aCx, JS::MutableHandle<JSObject*> aRetval);
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void Update(const CollectedType& aUpdate);
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void ClearCachedChildren();
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static bool HasData(const CollectedType& aPoint);
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bool IsEmpty() const;
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private:
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~SessionStoreScrollData() = default;
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nsPoint mScroll;
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MaybeSessionStoreZoom mZoom;
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nsTArray<RefPtr<SessionStoreScrollData>> mChildren;
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_SessionStoreScrollData_h
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