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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_PseudoElementHashEntry_h
#define mozilla_PseudoElementHashEntry_h
#include "mozilla/dom/Element.h"
#include "mozilla/AnimationTarget.h"
#include "mozilla/HashFunctions.h"
#include "PLDHashTable.h"
namespace mozilla {
// A hash entry that uses a RefPtr<dom::Element>, CSSPseudoElementType pair
class PseudoElementHashEntry : public PLDHashEntryHdr
{
public:
typedef NonOwningAnimationTarget KeyType;
typedef const NonOwningAnimationTarget* KeyTypePointer;
explicit PseudoElementHashEntry(KeyTypePointer aKey)
: mElement(aKey->mElement)
, mPseudoType(aKey->mPseudoType) { }
explicit PseudoElementHashEntry(const PseudoElementHashEntry& aCopy)=default;
~PseudoElementHashEntry() = default;
KeyType GetKey() const { return { mElement, mPseudoType }; }
bool KeyEquals(KeyTypePointer aKey) const
{
return mElement == aKey->mElement &&
mPseudoType == aKey->mPseudoType;
}
static KeyTypePointer KeyToPointer(KeyType& aKey) { return &aKey; }
static PLDHashNumber HashKey(KeyTypePointer aKey)
{
if (!aKey)
return 0;
// Convert the scoped enum into an integer while adding it to hash.
// Note: CSSPseudoElementTypeBase is uint8_t, so we convert it into
// uint8_t directly to avoid including the header.
return mozilla::HashGeneric(aKey->mElement,
static_cast<uint8_t>(aKey->mPseudoType));
}
enum { ALLOW_MEMMOVE = true };
RefPtr<dom::Element> mElement;
CSSPseudoElementType mPseudoType;
};
} // namespace mozilla
#endif // mozilla_PseudoElementHashEntry_h
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