| 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')); |