| /* |
| * 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 * as echarts from '../../echarts'; |
| import * as zrUtil from 'zrender/src/core/util'; |
| |
| function legendSelectActionHandler(methodName, payload, ecModel) { |
| var selectedMap = {}; |
| var isToggleSelect = methodName === 'toggleSelected'; |
| var isSelected; // Update all legend components |
| |
| ecModel.eachComponent('legend', function (legendModel) { |
| if (isToggleSelect && isSelected != null) { |
| // Force other legend has same selected status |
| // Or the first is toggled to true and other are toggled to false |
| // In the case one legend has some item unSelected in option. And if other legend |
| // doesn't has the item, they will assume it is selected. |
| legendModel[isSelected ? 'select' : 'unSelect'](payload.name); |
| } else { |
| legendModel[methodName](payload.name); |
| isSelected = legendModel.isSelected(payload.name); |
| } |
| |
| var legendData = legendModel.getData(); |
| zrUtil.each(legendData, function (model) { |
| var name = model.get('name'); // Wrap element |
| |
| if (name === '\n' || name === '') { |
| return; |
| } |
| |
| var isItemSelected = legendModel.isSelected(name); |
| |
| if (selectedMap.hasOwnProperty(name)) { |
| // Unselected if any legend is unselected |
| selectedMap[name] = selectedMap[name] && isItemSelected; |
| } else { |
| selectedMap[name] = isItemSelected; |
| } |
| }); |
| }); // Return the event explicitly |
| |
| return { |
| name: payload.name, |
| selected: selectedMap |
| }; |
| } |
| /** |
| * @event legendToggleSelect |
| * @type {Object} |
| * @property {string} type 'legendToggleSelect' |
| * @property {string} [from] |
| * @property {string} name Series name or data item name |
| */ |
| |
| |
| echarts.registerAction('legendToggleSelect', 'legendselectchanged', zrUtil.curry(legendSelectActionHandler, 'toggleSelected')); |
| /** |
| * @event legendSelect |
| * @type {Object} |
| * @property {string} type 'legendSelect' |
| * @property {string} name Series name or data item name |
| */ |
| |
| echarts.registerAction('legendSelect', 'legendselected', zrUtil.curry(legendSelectActionHandler, 'select')); |
| /** |
| * @event legendUnSelect |
| * @type {Object} |
| * @property {string} type 'legendUnSelect' |
| * @property {string} name Series name or data item name |
| */ |
| |
| echarts.registerAction('legendUnSelect', 'legendunselected', zrUtil.curry(legendSelectActionHandler, 'unSelect')); |