| // 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_ACTIVE_PSEUDO_CLASS_H_ |
| #define COBALT_CSSOM_ACTIVE_PSEUDO_CLASS_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "cobalt/base/tokens.h" |
| #include "cobalt/cssom/pseudo_class.h" |
| #include "cobalt/cssom/selector_tree.h" |
| |
| namespace cobalt { |
| namespace cssom { |
| |
| class SelectorVisitor; |
| |
| // The :active pseudo-class applies while an element is being activated by the |
| // user. For example, between the times the user presses the mouse button and |
| // releases it. On systems with more than one mouse button, :active applies only |
| // to the primary or primary activation button (typically the "left" mouse |
| // button), and any aliases thereof. |
| // https://www.w3.org/TR/selectors4/#active-pseudo |
| class ActivePseudoClass : public PseudoClass { |
| public: |
| ActivePseudoClass() |
| : PseudoClass(base::Tokens::active_pseudo_class_selector()) {} |
| ~ActivePseudoClass() override {} |
| |
| // From Selector. |
| void Accept(SelectorVisitor* visitor) override; |
| |
| // From SimpleSelector. |
| void IndexSelectorTreeNode(SelectorTree::Node* parent_node, |
| SelectorTree::Node* child_node, |
| CombinatorType combinator) override; |
| |
| // From PseudoClass. |
| ActivePseudoClass* AsActivePseudoClass() override { return this; } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ActivePseudoClass); |
| }; |
| |
| } // namespace cssom |
| } // namespace cobalt |
| |
| #endif // COBALT_CSSOM_ACTIVE_PSEUDO_CLASS_H_ |