| /* |
| * Copyright 2014 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_DOM_NODE_CHILDREN_ITERATOR_H_ |
| #define COBALT_DOM_NODE_CHILDREN_ITERATOR_H_ |
| |
| #include "cobalt/dom/node.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| // Iterates over the first-level children of the given node. |
| class NodeChildrenIterator { |
| public: |
| explicit NodeChildrenIterator(const scoped_refptr<const Node>& parent) |
| : parent_(parent), current_(NULL) {} |
| |
| Node* First() { |
| current_ = parent_->first_child(); |
| return current_; |
| } |
| |
| Node* Next() { |
| if (current_) { |
| current_ = current_->next_sibling(); |
| } |
| return current_; |
| } |
| |
| private: |
| scoped_refptr<const Node> parent_; |
| // Scoped pointer is not used for optimization reasons. |
| Node* current_; |
| }; |
| |
| } // namespace dom |
| } // namespace cobalt |
| |
| #endif // COBALT_DOM_NODE_CHILDREN_ITERATOR_H_ |