gecko-dev/layout/style/nsCSSAnonBoxes.cpp

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2.5 KiB
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/* -*- Mode: C++; tab-width: 2; 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/. */
/* atom list for CSS anonymous boxes */
#include "mozilla/ArrayUtils.h"
#include "nsCSSAnonBoxes.h"
#include "nsAtomListUtils.h"
#include "nsStaticAtom.h"
using namespace mozilla;
// define storage for all atoms
#define CSS_ANON_BOX(name_, value_) \
nsICSSAnonBoxPseudo* nsCSSAnonBoxes::name_;
#include "nsCSSAnonBoxList.h"
#undef CSS_ANON_BOX
#define CSS_ANON_BOX(name_, value_) \
NS_STATIC_ATOM_BUFFER(name_##_buffer, value_)
#include "nsCSSAnonBoxList.h"
#undef CSS_ANON_BOX
static const nsStaticAtom CSSAnonBoxes_info[] = {
// 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(name_##_buffer, (nsIAtom**)&nsCSSAnonBoxes::name_),
#include "nsCSSAnonBoxList.h"
#undef CSS_NON_INHERITING_ANON_BOX
#undef CSS_ANON_BOX
#define CSS_ANON_BOX(name_, value_) \
NS_STATIC_ATOM(name_##_buffer, (nsIAtom**)&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(CSSAnonBoxes_info);
}
bool nsCSSAnonBoxes::IsAnonBox(nsIAtom *aAtom)
{
return nsAtomListUtils::IsMember(aAtom, CSSAnonBoxes_info,
ArrayLength(CSSAnonBoxes_info));
}
#ifdef MOZ_XUL
/* static */ bool
nsCSSAnonBoxes::IsTreePseudoElement(nsIAtom* aPseudo)
{
MOZ_ASSERT(nsCSSAnonBoxes::IsAnonBox(aPseudo));
return StringBeginsWith(nsDependentAtomString(aPseudo),
NS_LITERAL_STRING(":-moz-tree-"));
}
#endif
/* static*/ nsCSSAnonBoxes::NonInheriting
nsCSSAnonBoxes::NonInheritingTypeForPseudoTag(nsIAtom* aPseudo)
{
MOZ_ASSERT(IsNonInheritingAnonBox(aPseudo));
for (NonInheritingBase i = 0;
i < ArrayLength(CSSAnonBoxes_info);
++i) {
if (*CSSAnonBoxes_info[i].mAtom == aPseudo) {
return static_cast<NonInheriting>(i);
}
}
MOZ_CRASH("Bogus pseudo passed to NonInheritingTypeForPseudoTag");
}
/* static */ nsIAtom*
nsCSSAnonBoxes::GetNonInheritingPseudoAtom(NonInheriting aBoxType)
{
MOZ_ASSERT(aBoxType < NonInheriting::_Count);
return *CSSAnonBoxes_info[static_cast<NonInheritingBase>(aBoxType)].mAtom;
}