| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_CSSOM_PSEUDO_CLASS_H_ |
| #define COBALT_CSSOM_PSEUDO_CLASS_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "cobalt/cssom/simple_selector.h" |
| #include "cobalt/cssom/specificity.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| class ActivePseudoClass; |
| class EmptyPseudoClass; |
| class FocusPseudoClass; |
| class HoverPseudoClass; |
| class NotPseudoClass; |
| |
| // The pseudo-class concept is introduced to permit selection based on |
| // information that lies outside of the document tree or that can be awkward or |
| // impossible to express using the other simple selectors. |
| // https://www.w3.org/TR/selectors4/#pseudo-classes |
| class PseudoClass : public SimpleSelector { |
| public: |
| explicit PseudoClass(base::Token text) |
| : SimpleSelector(kPseudoClass, |
| base::Tokens::pseudo_class_selector_prefix(), text) {} |
| ~PseudoClass() override {} |
| |
| // From Selector. |
| Specificity GetSpecificity() const override { return Specificity(0, 1, 0); } |
| |
| // Rest of public methods. |
| virtual ActivePseudoClass* AsActivePseudoClass() { return NULL; } |
| virtual EmptyPseudoClass* AsEmptyPseudoClass() { return NULL; } |
| virtual FocusPseudoClass* AsFocusPseudoClass() { return NULL; } |
| virtual HoverPseudoClass* AsHoverPseudoClass() { return NULL; } |
| virtual NotPseudoClass* AsNotPseudoClass() { return NULL; } |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_PSEUDO_CLASS_H_ |