зеркало из https://github.com/mozilla/gecko-dev.git
52 строки
1.4 KiB
C++
52 строки
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 _nsAccCache_H_
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#define _nsAccCache_H_
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#include "xpcAccessibleDocument.h"
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////////////////////////////////////////////////////////////////////////////////
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// Accessible cache utils
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////////////////////////////////////////////////////////////////////////////////
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/**
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* Shutdown and removes the accessible from cache.
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*/
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template <class T>
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static PLDHashOperator
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ClearCacheEntry(const void* aKey, nsRefPtr<T>& aAccessible, void* aUserArg)
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{
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NS_ASSERTION(aAccessible, "Calling ClearCacheEntry with a nullptr pointer!");
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if (aAccessible && !aAccessible->IsDefunct())
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aAccessible->Shutdown();
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return PL_DHASH_REMOVE;
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}
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template <class T>
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static PLDHashOperator
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UnbindCacheEntryFromDocument(const void* aKey, nsRefPtr<T>& aAccessible,
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void* aUserArg)
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{
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MOZ_ASSERT(aAccessible && !aAccessible->IsDefunct());
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aAccessible->Document()->UnbindFromDocument(aAccessible);
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return PL_DHASH_REMOVE;
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}
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/**
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* Clear the cache and shutdown the accessibles.
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*/
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template <class T>
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static void
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ClearCache(nsRefPtrHashtable<nsPtrHashKey<const void>, T>& aCache)
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{
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aCache.Enumerate(ClearCacheEntry<T>, nullptr);
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}
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#endif
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