gecko-dev/layout/style/nsCSSPseudoClasses.h

59 lines
1.7 KiB
C++

/* -*- 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-classes */
#ifndef nsCSSPseudoClasses_h___
#define nsCSSPseudoClasses_h___
#include "nsStringFwd.h"
// This pseudo-element is accepted only in UA style sheets.
#define CSS_PSEUDO_CLASS_UA_SHEET_ONLY (1<<0)
class nsIAtom;
class nsCSSPseudoClasses {
public:
static void AddRefAtoms();
enum Type {
#define CSS_PSEUDO_CLASS(_name, _value, _flags, _pref) \
ePseudoClass_##_name,
#include "nsCSSPseudoClassList.h"
#undef CSS_PSEUDO_CLASS
ePseudoClass_Count,
ePseudoClass_NotPseudoClass /* This value MUST be last! SelectorMatches
depends on it. */
};
static Type GetPseudoType(nsIAtom* aAtom);
static bool HasStringArg(Type aType);
static bool HasNthPairArg(Type aType);
static bool HasSelectorListArg(Type aType) {
return aType == ePseudoClass_any;
}
static bool IsUserActionPseudoClass(Type aType);
static bool PseudoClassIsUASheetOnly(Type aType) {
return PseudoClassHasFlags(aType, CSS_PSEUDO_CLASS_UA_SHEET_ONLY);
}
// Should only be used on types other than Count and NotPseudoClass
static void PseudoTypeToString(Type aType, nsAString& aString);
private:
static uint32_t FlagsForPseudoClass(const Type aType);
// Does the given pseudo-class have all of the flags given?
static bool PseudoClassHasFlags(const Type aType, uint32_t aFlags)
{
return (FlagsForPseudoClass(aType) & aFlags) == aFlags;
}
};
#endif /* nsCSSPseudoClasses_h___ */