| // 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_ID_SELECTOR_H_ |
| #define COBALT_CSSOM_ID_SELECTOR_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "cobalt/base/tokens.h" |
| #include "cobalt/cssom/selector_tree.h" |
| #include "cobalt/cssom/simple_selector.h" |
| #include "cobalt/cssom/specificity.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| class SelectorVisitor; |
| |
| // An ID selector represents an element instance that has an identifier that |
| // matches the identifier in the ID selector. |
| // https://www.w3.org/TR/selectors4/#id-selector |
| class IdSelector : public SimpleSelector { |
| public: |
| explicit IdSelector(const std::string& id) |
| : SimpleSelector(kIdSelector, base::Tokens::id_selector_prefix(), |
| base::Token(id)) {} |
| ~IdSelector() override {} |
| |
| // From Selector. |
| void Accept(SelectorVisitor* visitor) override; |
| Specificity GetSpecificity() const override { return Specificity(1, 0, 0); } |
| |
| // From SimpleSelector. |
| void IndexSelectorTreeNode(SelectorTree::Node* parent_node, |
| SelectorTree::Node* child_node, |
| CombinatorType combinator) override; |
| |
| // Rest of public methods. |
| base::Token id() const { return text(); } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(IdSelector); |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_ID_SELECTOR_H_ |