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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 http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_XULPersist_h
#define mozilla_dom_XULPersist_h
#include "nsStubDocumentObserver.h"
#ifndef MOZ_NEW_XULSTORE
# include "nsCOMPtr.h"
class nsIXULStore;
#endif
template <typename T>
class nsCOMArray;
namespace mozilla::dom {
/**
* This class synchronizes element attributes (such as window sizing) with the
* live elements in a Document and with the XULStore. The XULStore persists
* these attributes to the file system. This class is created and owned by the
* Document and must only be created in the parent process. It only presists
* chrome document element attributes.
*/
class XULPersist final : public nsStubDocumentObserver {
public:
NS_DECL_ISUPPORTS
explicit XULPersist(Document* aDocument);
void Init();
void DropDocumentReference();
NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
protected:
void Persist(mozilla::dom::Element* aElement, nsAtom* aAttribute);
private:
~XULPersist();
nsresult ApplyPersistentAttributes();
nsresult ApplyPersistentAttributesToElements(const nsAString& aID,
const nsAString& aDocURI,
nsCOMArray<Element>& aElements);
nsCOMPtr<nsIXULStore> mLocalStore;
// A weak pointer to our document. Nulled out by DropDocumentReference.
Document* MOZ_NON_OWNING_REF mDocument;
};
} // namespace mozilla::dom
#endif // mozilla_dom_XULPersist_h
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