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node_modules/echarts/src/component/timeline/preprocessor.js 2.9 KB
aaac7fed   liuqimichale   add
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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.
  */
  
  import * as zrUtil from 'zrender/src/core/util';
  
  export default function (option) {
      var timelineOpt = option && option.timeline;
  
      if (!zrUtil.isArray(timelineOpt)) {
          timelineOpt = timelineOpt ? [timelineOpt] : [];
      }
  
      zrUtil.each(timelineOpt, function (opt) {
          if (!opt) {
              return;
          }
  
          compatibleEC2(opt);
      });
  }
  
  function compatibleEC2(opt) {
      var type = opt.type;
  
      var ec2Types = {'number': 'value', 'time': 'time'};
  
      // Compatible with ec2
      if (ec2Types[type]) {
          opt.axisType = ec2Types[type];
          delete opt.type;
      }
  
      transferItem(opt);
  
      if (has(opt, 'controlPosition')) {
          var controlStyle = opt.controlStyle || (opt.controlStyle = {});
          if (!has(controlStyle, 'position')) {
              controlStyle.position = opt.controlPosition;
          }
          if (controlStyle.position === 'none' && !has(controlStyle, 'show')) {
              controlStyle.show = false;
              delete controlStyle.position;
          }
          delete opt.controlPosition;
      }
  
      zrUtil.each(opt.data || [], function (dataItem) {
          if (zrUtil.isObject(dataItem) && !zrUtil.isArray(dataItem)) {
              if (!has(dataItem, 'value') && has(dataItem, 'name')) {
                  // In ec2, using name as value.
                  dataItem.value = dataItem.name;
              }
              transferItem(dataItem);
          }
      });
  }
  
  function transferItem(opt) {
      var itemStyle = opt.itemStyle || (opt.itemStyle = {});
  
      var itemStyleEmphasis = itemStyle.emphasis || (itemStyle.emphasis = {});
  
      // Transfer label out
      var label = opt.label || (opt.label || {});
      var labelNormal = label.normal || (label.normal = {});
      var excludeLabelAttr = {normal: 1, emphasis: 1};
  
      zrUtil.each(label, function (value, name) {
          if (!excludeLabelAttr[name] && !has(labelNormal, name)) {
              labelNormal[name] = value;
          }
      });
  
      if (itemStyleEmphasis.label && !has(label, 'emphasis')) {
          label.emphasis = itemStyleEmphasis.label;
          delete itemStyleEmphasis.label;
      }
  }
  
  function has(obj, attr) {
      return obj.hasOwnProperty(attr);
  }