michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* atom list for CSS pseudo-classes */
michael@0: 
michael@0: #include "mozilla/ArrayUtils.h"
michael@0: 
michael@0: #include "nsCSSPseudoClasses.h"
michael@0: #include "nsStaticAtom.h"
michael@0: #include "mozilla/Preferences.h"
michael@0: #include "nsString.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: // define storage for all atoms
michael@0: #define CSS_PSEUDO_CLASS(_name, _value, _pref) \
michael@0:   static nsIAtom* sPseudoClass_##_name;
michael@0: #include "nsCSSPseudoClassList.h"
michael@0: #undef CSS_PSEUDO_CLASS
michael@0: 
michael@0: #define CSS_PSEUDO_CLASS(name_, value_, pref_)  \
michael@0:   NS_STATIC_ATOM_BUFFER(name_##_pseudo_class_buffer, value_)
michael@0: #include "nsCSSPseudoClassList.h"
michael@0: #undef CSS_PSEUDO_CLASS
michael@0: 
michael@0: static const nsStaticAtom CSSPseudoClasses_info[] = {
michael@0: #define CSS_PSEUDO_CLASS(name_, value_, pref_)            \
michael@0:   NS_STATIC_ATOM(name_##_pseudo_class_buffer, &sPseudoClass_##name_),
michael@0: #include "nsCSSPseudoClassList.h"
michael@0: #undef CSS_PSEUDO_CLASS
michael@0: };
michael@0: 
michael@0: static bool sPseudoClassEnabled[] = {
michael@0: #define CSS_PSEUDO_CLASS(name_, value_, pref_)            \
michael@0:   true,
michael@0: #include "nsCSSPseudoClassList.h"
michael@0: #undef CSS_PSEUDO_CLASS
michael@0: };  
michael@0: 
michael@0: void nsCSSPseudoClasses::AddRefAtoms()
michael@0: {
michael@0:   NS_RegisterStaticAtoms(CSSPseudoClasses_info);
michael@0:   
michael@0: #define CSS_PSEUDO_CLASS(name_, value_, pref_)                               \
michael@0:   if (pref_[0]) {                                                            \
michael@0:     Preferences::AddBoolVarCache(&sPseudoClassEnabled[ePseudoClass_##name_], \
michael@0:                                  pref_);                                     \
michael@0:   }
michael@0: #include "nsCSSPseudoClassList.h"
michael@0: #undef CSS_PSEUDO_CLASS
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsCSSPseudoClasses::HasStringArg(Type aType)
michael@0: {
michael@0:   return aType == ePseudoClass_lang ||
michael@0:          aType == ePseudoClass_mozEmptyExceptChildrenWithLocalname ||
michael@0:          aType == ePseudoClass_mozSystemMetric ||
michael@0:          aType == ePseudoClass_mozLocaleDir ||
michael@0:          aType == ePseudoClass_dir;
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsCSSPseudoClasses::HasNthPairArg(Type aType)
michael@0: {
michael@0:   return aType == ePseudoClass_nthChild ||
michael@0:          aType == ePseudoClass_nthLastChild ||
michael@0:          aType == ePseudoClass_nthOfType ||
michael@0:          aType == ePseudoClass_nthLastOfType;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsCSSPseudoClasses::PseudoTypeToString(Type aType, nsAString& aString)
michael@0: {
michael@0:   NS_ABORT_IF_FALSE(aType < ePseudoClass_Count, "Unexpected type");
michael@0:   NS_ABORT_IF_FALSE(aType >= 0, "Very unexpected type");
michael@0:   (*CSSPseudoClasses_info[aType].mAtom)->ToString(aString);
michael@0: }
michael@0: 
michael@0: nsCSSPseudoClasses::Type
michael@0: nsCSSPseudoClasses::GetPseudoType(nsIAtom* aAtom)
michael@0: {
michael@0:   for (uint32_t i = 0; i < ArrayLength(CSSPseudoClasses_info); ++i) {
michael@0:     if (*CSSPseudoClasses_info[i].mAtom == aAtom) {
michael@0:       return sPseudoClassEnabled[i] ? Type(i) : ePseudoClass_NotPseudoClass;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return nsCSSPseudoClasses::ePseudoClass_NotPseudoClass;
michael@0: }
michael@0: 
michael@0: /* static */ bool
michael@0: nsCSSPseudoClasses::IsUserActionPseudoClass(Type aType)
michael@0: {
michael@0:   // See http://dev.w3.org/csswg/selectors4/#useraction-pseudos
michael@0:   return aType == ePseudoClass_hover ||
michael@0:          aType == ePseudoClass_active ||
michael@0:          aType == ePseudoClass_focus;
michael@0: }