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