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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 pseudo-elements */
#include "mozilla/ArrayUtils.h"
#include "nsCSSPseudoElements.h"
#include "nsAtomListUtils.h"
#include "nsStaticAtom.h"
#include "nsCSSAnonBoxes.h"
using namespace mozilla;
// define storage for all atoms
#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
nsICSSPseudoElement* nsCSSPseudoElements::name_;
#include "nsCSSPseudoElementList.h"
#undef CSS_PSEUDO_ELEMENT
#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
NS_STATIC_ATOM_BUFFER(name_##_pseudo_element_buffer, value_)
#include "nsCSSPseudoElementList.h"
#undef CSS_PSEUDO_ELEMENT
// Array of nsStaticAtom for each of the pseudo-elements.
static const nsStaticAtom CSSPseudoElements_info[] = {
#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
NS_STATIC_ATOM(name_##_pseudo_element_buffer, (nsIAtom**)&nsCSSPseudoElements::name_),
#include "nsCSSPseudoElementList.h"
#undef CSS_PSEUDO_ELEMENT
};
// Flags data for each of the pseudo-elements, which must be separate
// from the previous array since there's no place for it in
// nsStaticAtom.
/* static */ const uint32_t
nsCSSPseudoElements::kPseudoElementFlags[] = {
#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
flags_,
#include "nsCSSPseudoElementList.h"
#undef CSS_PSEUDO_ELEMENT
};
void nsCSSPseudoElements::AddRefAtoms()
{
NS_RegisterStaticAtoms(CSSPseudoElements_info);
}
bool nsCSSPseudoElements::IsPseudoElement(nsIAtom *aAtom)
{
return nsAtomListUtils::IsMember(aAtom, CSSPseudoElements_info,
ArrayLength(CSSPseudoElements_info));
}
/* static */ bool
nsCSSPseudoElements::IsCSS2PseudoElement(nsIAtom *aAtom)
{
// We don't implement this using PseudoElementHasFlags because callers
// want to pass things that could be anon boxes.
NS_ASSERTION(nsCSSPseudoElements::IsPseudoElement(aAtom) ||
nsCSSAnonBoxes::IsAnonBox(aAtom),
"must be pseudo element or anon box");
bool result = aAtom == nsCSSPseudoElements::after ||
aAtom == nsCSSPseudoElements::before ||
aAtom == nsCSSPseudoElements::firstLetter ||
aAtom == nsCSSPseudoElements::firstLine;
NS_ASSERTION(nsCSSAnonBoxes::IsAnonBox(aAtom) ||
result == PseudoElementHasFlags(
GetPseudoType(aAtom, EnabledState::eIgnoreEnabledState),
CSS_PSEUDO_ELEMENT_IS_CSS2),
"result doesn't match flags");
return result;
}
/* static */ CSSPseudoElementType
nsCSSPseudoElements::GetPseudoType(nsIAtom *aAtom, EnabledState aEnabledState)
{
for (CSSPseudoElementTypeBase i = 0;
i < ArrayLength(CSSPseudoElements_info);
++i) {
if (*CSSPseudoElements_info[i].mAtom == aAtom) {
auto type = static_cast<Type>(i);
// ::moz-placeholder is an alias for ::placeholder
if (type == CSSPseudoElementType::mozPlaceholder) {
type = CSSPseudoElementType::placeholder;
}
return IsEnabled(type, aEnabledState) ? type : Type::NotPseudo;
}
}
if (nsCSSAnonBoxes::IsAnonBox(aAtom)) {
#ifdef MOZ_XUL
if (nsCSSAnonBoxes::IsTreePseudoElement(aAtom)) {
return Type::XULTree;
}
#endif
return Type::AnonBox;
}
return Type::NotPseudo;
}
/* static */ nsIAtom*
nsCSSPseudoElements::GetPseudoAtom(Type aType)
{
NS_ASSERTION(aType < Type::Count, "Unexpected type");
return *CSSPseudoElements_info[
static_cast<CSSPseudoElementTypeBase>(aType)].mAtom;
}
/* static */ bool
nsCSSPseudoElements::PseudoElementSupportsUserActionState(const Type aType)
{
return PseudoElementHasFlags(aType,
CSS_PSEUDO_ELEMENT_SUPPORTS_USER_ACTION_STATE);
}
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