| // 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_SIMPLE_SELECTOR_H_ |
| #define COBALT_CSSOM_SIMPLE_SELECTOR_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/scoped_vector.h" |
| #include "cobalt/base/token.h" |
| #include "cobalt/cssom/combinator.h" |
| #include "cobalt/cssom/selector.h" |
| #include "cobalt/cssom/selector_tree.h" |
| #include "cobalt/cssom/simple_selector_type.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| class AttributeSelector; |
| class ClassSelector; |
| class CompoundSelector; |
| class IdSelector; |
| class PseudoClass; |
| class PseudoElement; |
| class TypeSelector; |
| |
| // A simple selector is either a type selector, universal selector, attribute |
| // selector, class selector, ID selector, or pseudo-class. |
| // https://www.w3.org/TR/selectors4/#simple |
| class SimpleSelector : public Selector { |
| public: |
| SimpleSelector(SimpleSelectorType type, base::Token prefix, base::Token text) |
| : type_(type), prefix_(prefix), text_(text) {} |
| ~SimpleSelector() override {} |
| |
| // From Selector. |
| SimpleSelector* AsSimpleSelector() override { return this; } |
| |
| // Rest of public methods. |
| |
| // Used to sort simple selectors when normalizing compound selector. |
| SimpleSelectorType type() const { return type_; } |
| |
| // Returns token representation of the selector. |
| base::Token prefix() const { return prefix_; } |
| base::Token text() const { return text_; } |
| |
| virtual PseudoElement* AsPseudoElement() { return NULL; } |
| |
| virtual bool AlwaysRequiresRuleMatchingVerificationVisit() const { |
| return false; |
| } |
| |
| virtual CompoundSelector* GetContainedCompoundSelector() const { |
| return NULL; |
| } |
| |
| // Used to index selector tree node's children. |
| virtual void IndexSelectorTreeNode(SelectorTree::Node* parent_node, |
| SelectorTree::Node* child_node, |
| CombinatorType combinator) = 0; |
| |
| private: |
| SimpleSelectorType type_; |
| base::Token prefix_; |
| base::Token text_; |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_SIMPLE_SELECTOR_H_ |