gecko-dev/layout/style/nsCSSAnonBoxes.cpp

61 строка
2.1 KiB
C++

/* -*- 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/. */
/* atom list for CSS anonymous boxes */
#include "mozilla/ArrayUtils.h"
#include "nsCSSAnonBoxes.h"
#include "nsGkAtomConsts.h"
#include "nsStaticAtomUtils.h"
using namespace mozilla;
static nsStaticAtom* GetAtomBase() {
return const_cast<nsStaticAtom*>(
nsGkAtoms::GetAtomByIndex(kAtomIndex_AnonBoxes));
}
bool nsCSSAnonBoxes::IsAnonBox(nsAtom* aAtom) {
return nsStaticAtomUtils::IsMember(aAtom, GetAtomBase(),
kAtomCount_AnonBoxes);
}
#ifdef MOZ_XUL
/* static */ bool nsCSSAnonBoxes::IsTreePseudoElement(nsAtom* aPseudo) {
MOZ_ASSERT(nsCSSAnonBoxes::IsAnonBox(aPseudo));
return StringBeginsWith(nsDependentAtomString(aPseudo),
NS_LITERAL_STRING(":-moz-tree-"));
}
#endif
/* static*/ nsCSSAnonBoxes::NonInheriting
nsCSSAnonBoxes::NonInheritingTypeForPseudoTag(nsAtom* aPseudo) {
MOZ_ASSERT(IsNonInheritingAnonBox(aPseudo));
Maybe<uint32_t> index =
nsStaticAtomUtils::Lookup(aPseudo, GetAtomBase(), kAtomCount_AnonBoxes);
MOZ_RELEASE_ASSERT(index.isSome());
return static_cast<NonInheriting>(*index);
}
#ifdef DEBUG
/* static */ void nsCSSAnonBoxes::AssertAtoms() {
nsStaticAtom* base = GetAtomBase();
size_t index = 0;
# define CSS_ANON_BOX(name_, value_) \
{ \
RefPtr<nsAtom> atom = NS_Atomize(value_); \
MOZ_ASSERT(atom == nsGkAtoms::AnonBox_##name_, \
"Static atom for " #name_ " has incorrect value"); \
MOZ_ASSERT(atom == &base[index], \
"Static atom for " #name_ " not at expected index"); \
++index; \
}
# include "nsCSSAnonBoxList.h"
# undef CSS_ANON_BOX
}
#endif