| // Copyright 2017 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. |
| |
| /// Browser navigation actions. |
| abstract class Navigation { |
| /// Navigate forwards in the browser history, if possible. |
| void forward(); |
| |
| /// Navigate backwards in the browser history, if possible. |
| void back(); |
| |
| /// Refresh the current page. |
| void refresh(); |
| } |
