| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| import React, { Component } from 'react'; |
| |
| export default class Panel extends Component { |
| componentDidMount() { |
| const { globalVariables, variables, onChange } = this.props; |
| if (!this.isRender(this.props)) { |
| return; |
| } |
| onChange({ ...globalVariables, ...variables }); |
| } |
| |
| shouldComponentUpdate(nextProps) { |
| const { globalVariables, variables, onChange } = nextProps; |
| if (!this.isRender(nextProps)) { |
| return false; |
| } |
| if (globalVariables !== this.props.globalVariables || variables !== this.props.variables) { |
| onChange({ ...globalVariables, ...variables }); |
| return false; |
| } |
| return true; |
| } |
| |
| isRender = props => |
| [props.variables, props.globalVariables].reduce( |
| (acc, curr) => |
| acc && (curr === undefined || (curr !== undefined && Object.keys(curr).length > 0)), |
| true |
| ); |
| |
| render() { |
| const { children } = this.props; |
| return children && <div> {children} </div>; |
| } |
| } |