зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
3.7 KiB
C++
110 строки
3.7 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 */
|
|
|
|
#ifndef nsCSSAnonBoxes_h___
|
|
#define nsCSSAnonBoxes_h___
|
|
|
|
#include "nsAtom.h"
|
|
#include "nsGkAtoms.h"
|
|
|
|
class nsCSSAnonBoxes {
|
|
public:
|
|
static bool IsAnonBox(nsAtom *aAtom);
|
|
#ifdef MOZ_XUL
|
|
static bool IsTreePseudoElement(nsAtom* aPseudo);
|
|
#endif
|
|
static bool IsNonElement(nsAtom* aPseudo)
|
|
{
|
|
return aPseudo == nsCSSAnonBoxes::mozText() ||
|
|
aPseudo == nsCSSAnonBoxes::oofPlaceholder() ||
|
|
aPseudo == nsCSSAnonBoxes::firstLetterContinuation();
|
|
}
|
|
|
|
typedef uint8_t NonInheritingBase;
|
|
enum class NonInheriting : NonInheritingBase {
|
|
#define CSS_ANON_BOX(_name, _value) /* nothing */
|
|
#define CSS_NON_INHERITING_ANON_BOX(_name, _value) _name,
|
|
#include "nsCSSAnonBoxList.h"
|
|
#undef CSS_NON_INHERITING_ANON_BOX
|
|
#undef CSS_ANON_BOX
|
|
_Count
|
|
};
|
|
|
|
// Be careful using this: if we have a lot of non-inheriting anon box types it
|
|
// might not be very fast. We may want to think of ways to handle that
|
|
// (e.g. by moving to an enum instead of an atom, like we did for
|
|
// pseudo-elements, or by adding a new value of the pseudo-element enum for
|
|
// non-inheriting anon boxes or something).
|
|
static bool IsNonInheritingAnonBox(nsAtom* aPseudo)
|
|
{
|
|
return
|
|
#define CSS_ANON_BOX(_name, _value) /* nothing */
|
|
#define CSS_NON_INHERITING_ANON_BOX(_name, _value) \
|
|
nsGkAtoms::AnonBox_##_name == aPseudo ||
|
|
#include "nsCSSAnonBoxList.h"
|
|
#undef CSS_NON_INHERITING_ANON_BOX
|
|
#undef CSS_ANON_BOX
|
|
false;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
// NOTE(emilio): DEBUG only because this does a pretty slow linear search. Try
|
|
// to use IsNonInheritingAnonBox if you know the atom is an anon box already
|
|
// or, even better, nothing like this. Note that this function returns true
|
|
// for wrapper anon boxes as well, since they're all inheriting.
|
|
static bool IsInheritingAnonBox(nsAtom* aPseudo)
|
|
{
|
|
return
|
|
#define CSS_ANON_BOX(_name, _value) nsGkAtoms::AnonBox_##_name == aPseudo ||
|
|
#define CSS_NON_INHERITING_ANON_BOX(_name, _value) /* nothing */
|
|
#include "nsCSSAnonBoxList.h"
|
|
#undef CSS_NON_INHERITING_ANON_BOX
|
|
#undef CSS_ANON_BOX
|
|
false;
|
|
}
|
|
#endif // DEBUG
|
|
|
|
// This function is rather slow; you probably don't want to use it outside
|
|
// asserts unless you have to.
|
|
static bool IsWrapperAnonBox(nsAtom* aPseudo) {
|
|
// We commonly get null passed here, and want to quickly return false for
|
|
// it.
|
|
return aPseudo &&
|
|
(
|
|
#define CSS_ANON_BOX(_name, _value) /* nothing */
|
|
#define CSS_WRAPPER_ANON_BOX(_name, _value) nsGkAtoms::AnonBox_##_name == aPseudo ||
|
|
#define CSS_NON_INHERITING_ANON_BOX(_name, _value) /* nothing */
|
|
#include "nsCSSAnonBoxList.h"
|
|
#undef CSS_NON_INHERITING_ANON_BOX
|
|
#undef CSS_WRAPPER_ANON_BOX
|
|
#undef CSS_ANON_BOX
|
|
false);
|
|
}
|
|
|
|
// Get the NonInheriting type for a given pseudo tag. The pseudo tag must
|
|
// test true for IsNonInheritingAnonBox.
|
|
static NonInheriting NonInheritingTypeForPseudoTag(nsAtom* aPseudo);
|
|
|
|
#ifdef DEBUG
|
|
static void AssertAtoms();
|
|
#endif
|
|
|
|
// Alias nsCSSAnonBoxes::foo() to nsGkAtoms::AnonBox_foo.
|
|
#define CSS_ANON_BOX(name_, value_) \
|
|
static nsCSSAnonBoxPseudoStaticAtom* name_() \
|
|
{ \
|
|
return const_cast<nsCSSAnonBoxPseudoStaticAtom*>( \
|
|
static_cast<const nsCSSAnonBoxPseudoStaticAtom*>( \
|
|
nsGkAtoms::AnonBox_##name_)); \
|
|
}
|
|
#include "nsCSSAnonBoxList.h"
|
|
#undef CSS_ANON_BOX
|
|
};
|
|
|
|
#endif /* nsCSSAnonBoxes_h___ */
|