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node_modules/echarts/src/view/Component.js 2.06 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 Group from 'zrender/src/container/Group';
  import * as componentUtil from '../util/component';
  import * as clazzUtil from '../util/clazz';
  
  var Component = function () {
      /**
       * @type {module:zrender/container/Group}
       * @readOnly
       */
      this.group = new Group();
  
      /**
       * @type {string}
       * @readOnly
       */
      this.uid = componentUtil.getUID('viewComponent');
  };
  
  Component.prototype = {
  
      constructor: Component,
  
      init: function (ecModel, api) {},
  
      render: function (componentModel, ecModel, api, payload) {},
  
      dispose: function () {},
  
      /**
       * @param {string} eventType
       * @param {Object} query
       * @param {module:zrender/Element} targetEl
       * @param {Object} packedEvent
       * @return {boolen} Pass only when return `true`.
       */
      filterForExposedEvent: null
  
  };
  
  var componentProto = Component.prototype;
  componentProto.updateView
      = componentProto.updateLayout
      = componentProto.updateVisual
      = function (seriesModel, ecModel, api, payload) {
          // Do nothing;
      };
  // Enable Component.extend.
  clazzUtil.enableClassExtend(Component);
  
  // Enable capability of registerClass, getClass, hasClass, registerSubTypeDefaulter and so on.
  clazzUtil.enableClassManagement(Component, {registerWhenExtend: true});
  
  export default Component;