en/builder/src/echarts3/component/timeline/timelineAction.js

import * as echarts from '../../echarts';
import * as zrUtil from 'zrender/src/core/util';
echarts.registerAction({
  type: 'timelineChange',
  event: 'timelineChanged',
  update: 'prepareAndUpdate'
}, function (payload, ecModel) {
  var timelineModel = ecModel.getComponent('timeline');

  if (timelineModel && payload.currentIndex != null) {
    timelineModel.setCurrentIndex(payload.currentIndex);

    if (!timelineModel.get('loop', true) && timelineModel.isIndexMax()) {
      timelineModel.setPlayState(false);
    }
  } // Set normalized currentIndex to payload.


  ecModel.resetOption('timeline');
  return zrUtil.defaults({
    currentIndex: timelineModel.option.currentIndex
  }, payload);
});
echarts.registerAction({
  type: 'timelinePlayChange',
  event: 'timelinePlayChanged',
  update: 'update'
}, function (payload, ecModel) {
  var timelineModel = ecModel.getComponent('timeline');

  if (timelineModel && payload.playState != null) {
    timelineModel.setPlayState(payload.playState);
  }
});