gecko-dev/layout/style/nsCSSAnonBoxes.cpp

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2.6 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 "nsAtomListUtils.h"
#include "nsStaticAtom.h"
using namespace mozilla;
#define CSS_ANON_BOX(name_, value_) \
NS_STATIC_ATOM_SUBCLASS_DEFN(nsICSSAnonBoxPseudo, nsCSSAnonBoxes, name_)
#include "nsCSSAnonBoxList.h"
#undef CSS_ANON_BOX
#define CSS_ANON_BOX(name_, value_) NS_STATIC_ATOM_BUFFER(name_, value_)
#include "nsCSSAnonBoxList.h"
#undef CSS_ANON_BOX
static const nsStaticAtomSetup sCSSAnonBoxAtomSetup[] = {
// Put the non-inheriting anon boxes first, so we can index into them easily.
#define CSS_ANON_BOX(name_, value_) /* nothing */
#define CSS_NON_INHERITING_ANON_BOX(name_, value_) \
NS_STATIC_ATOM_SUBCLASS_SETUP(nsCSSAnonBoxes, name_)
#include "nsCSSAnonBoxList.h"
#undef CSS_NON_INHERITING_ANON_BOX
#undef CSS_ANON_BOX
#define CSS_ANON_BOX(name_, value_) \
NS_STATIC_ATOM_SUBCLASS_SETUP(nsCSSAnonBoxes, name_)
#define CSS_NON_INHERITING_ANON_BOX(name_, value_) /* nothing */
#include "nsCSSAnonBoxList.h"
#undef CSS_NON_INHERITING_ANON_BOX
#undef CSS_ANON_BOX
};
void nsCSSAnonBoxes::AddRefAtoms()
{
NS_RegisterStaticAtoms(sCSSAnonBoxAtomSetup);
}
bool nsCSSAnonBoxes::IsAnonBox(nsAtom *aAtom)
{
return nsAtomListUtils::IsMember(aAtom, sCSSAnonBoxAtomSetup,
ArrayLength(sCSSAnonBoxAtomSetup));
}
#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));
for (NonInheritingBase i = 0; i < ArrayLength(sCSSAnonBoxAtomSetup); ++i) {
if (*sCSSAnonBoxAtomSetup[i].mAtom == aPseudo) {
return static_cast<NonInheriting>(i);
}
}
MOZ_CRASH("Bogus pseudo passed to NonInheritingTypeForPseudoTag");
}
/* static */ nsAtom*
nsCSSAnonBoxes::GetNonInheritingPseudoAtom(NonInheriting aBoxType)
{
MOZ_ASSERT(aBoxType < NonInheriting::_Count);
return *sCSSAnonBoxAtomSetup[static_cast<NonInheritingBase>(aBoxType)].mAtom;
}