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node_modules/echarts/lib/component/legend/legendAction.js 4.35 KB
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  /*
  * 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.
  */
  
  
  /**
   * AUTO-GENERATED FILE. DO NOT MODIFY.
   */
  
  /*
  * 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.
  */
  // @ts-nocheck
  import { curry, each } from 'zrender/lib/core/util.js';
  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 if (methodName === 'allSelect' || methodName === 'inverseSelect') {
        legendModel[methodName]();
      } else {
        legendModel[methodName](payload.name);
        isSelected = legendModel.isSelected(payload.name);
      }
      var legendData = legendModel.getData();
      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 methodName === 'allSelect' || methodName === 'inverseSelect' ? {
      selected: selectedMap
    } : {
      name: payload.name,
      selected: selectedMap
    };
  }
  export function installLegendAction(registers) {
    /**
     * @event legendToggleSelect
     * @type {Object}
     * @property {string} type 'legendToggleSelect'
     * @property {string} [from]
     * @property {string} name Series name or data item name
     */
    registers.registerAction('legendToggleSelect', 'legendselectchanged', curry(legendSelectActionHandler, 'toggleSelected'));
    registers.registerAction('legendAllSelect', 'legendselectall', curry(legendSelectActionHandler, 'allSelect'));
    registers.registerAction('legendInverseSelect', 'legendinverseselect', curry(legendSelectActionHandler, 'inverseSelect'));
    /**
     * @event legendSelect
     * @type {Object}
     * @property {string} type 'legendSelect'
     * @property {string} name Series name or data item name
     */
    registers.registerAction('legendSelect', 'legendselected', curry(legendSelectActionHandler, 'select'));
    /**
     * @event legendUnSelect
     * @type {Object}
     * @property {string} type 'legendUnSelect'
     * @property {string} name Series name or data item name
     */
    registers.registerAction('legendUnSelect', 'legendunselected', curry(legendSelectActionHandler, 'unSelect'));
  }