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node_modules/echarts/lib/component/helper/interactionMutex.js 1.61 KB
2a09d1a4   liuqimichale   添加宜春 天水 宣化
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  var echarts = require("../../echarts");
  
  /*
  * 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.
  */
  var ATTR = '\0_ec_interaction_mutex';
  
  function take(zr, resourceKey, userKey) {
    var store = getStore(zr);
    store[resourceKey] = userKey;
  }
  
  function release(zr, resourceKey, userKey) {
    var store = getStore(zr);
    var uKey = store[resourceKey];
  
    if (uKey === userKey) {
      store[resourceKey] = null;
    }
  }
  
  function isTaken(zr, resourceKey) {
    return !!getStore(zr)[resourceKey];
  }
  
  function getStore(zr) {
    return zr[ATTR] || (zr[ATTR] = {});
  }
  /**
   * payload: {
   *     type: 'takeGlobalCursor',
   *     key: 'dataZoomSelect', or 'brush', or ...,
   *         If no userKey, release global cursor.
   * }
   */
  
  
  echarts.registerAction({
    type: 'takeGlobalCursor',
    event: 'globalCursorTaken',
    update: 'update'
  }, function () {});
  exports.take = take;
  exports.release = release;
  exports.isTaken = isTaken;