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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var echarts = require("../../echarts");
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var zrUtil = require("zrender/lib/core/util");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
|
* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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function legendSelectActionHandler(methodName, payload, ecModel) {
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var selectedMap = {};
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var isToggleSelect = methodName === 'toggleSelected';
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var isSelected; // Update all legend components
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ecModel.eachComponent('legend', function (legendModel) {
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if (isToggleSelect && isSelected != null) {
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// Force other legend has same selected status
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// Or the first is toggled to true and other are toggled to false
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// In the case one legend has some item unSelected in option. And if other legend
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// doesn't has the item, they will assume it is selected.
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legendModel[isSelected ? 'select' : 'unSelect'](payload.name);
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} else {
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legendModel[methodName](payload.name);
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isSelected = legendModel.isSelected(payload.name);
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}
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var legendData = legendModel.getData();
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zrUtil.each(legendData, function (model) {
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var name = model.get('name'); // Wrap element
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if (name === '\n' || name === '') {
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return;
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}
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var isItemSelected = legendModel.isSelected(name);
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if (selectedMap.hasOwnProperty(name)) {
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// Unselected if any legend is unselected
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selectedMap[name] = selectedMap[name] && isItemSelected;
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} else {
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selectedMap[name] = isItemSelected;
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}
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});
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}); // Return the event explicitly
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return {
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name: payload.name,
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selected: selectedMap
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};
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}
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/**
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* @event legendToggleSelect
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* @type {Object}
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* @property {string} type 'legendToggleSelect'
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* @property {string} [from]
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* @property {string} name Series name or data item name
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*/
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echarts.registerAction('legendToggleSelect', 'legendselectchanged', zrUtil.curry(legendSelectActionHandler, 'toggleSelected'));
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/**
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* @event legendSelect
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* @type {Object}
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* @property {string} type 'legendSelect'
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* @property {string} name Series name or data item name
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*/
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echarts.registerAction('legendSelect', 'legendselected', zrUtil.curry(legendSelectActionHandler, 'select'));
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/**
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* @event legendUnSelect
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* @type {Object}
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* @property {string} type 'legendUnSelect'
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* @property {string} name Series name or data item name
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*/
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echarts.registerAction('legendUnSelect', 'legendunselected', zrUtil.curry(legendSelectActionHandler, 'unSelect'));
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