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node_modules/echarts/lib/component/brush/preprocessor.js 2.99 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.
  */
  
  var zrUtil = require("zrender/lib/core/util");
  
  /*
  * 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 DEFAULT_TOOLBOX_BTNS = ['rect', 'polygon', 'keep', 'clear'];
  
  function _default(option, isNew) {
    var brushComponents = option && option.brush;
  
    if (!zrUtil.isArray(brushComponents)) {
      brushComponents = brushComponents ? [brushComponents] : [];
    }
  
    if (!brushComponents.length) {
      return;
    }
  
    var brushComponentSpecifiedBtns = [];
    zrUtil.each(brushComponents, function (brushOpt) {
      var tbs = brushOpt.hasOwnProperty('toolbox') ? brushOpt.toolbox : [];
  
      if (tbs instanceof Array) {
        brushComponentSpecifiedBtns = brushComponentSpecifiedBtns.concat(tbs);
      }
    });
    var toolbox = option && option.toolbox;
  
    if (zrUtil.isArray(toolbox)) {
      toolbox = toolbox[0];
    }
  
    if (!toolbox) {
      toolbox = {
        feature: {}
      };
      option.toolbox = [toolbox];
    }
  
    var toolboxFeature = toolbox.feature || (toolbox.feature = {});
    var toolboxBrush = toolboxFeature.brush || (toolboxFeature.brush = {});
    var brushTypes = toolboxBrush.type || (toolboxBrush.type = []);
    brushTypes.push.apply(brushTypes, brushComponentSpecifiedBtns);
    removeDuplicate(brushTypes);
  
    if (isNew && !brushTypes.length) {
      brushTypes.push.apply(brushTypes, DEFAULT_TOOLBOX_BTNS);
    }
  }
  
  function removeDuplicate(arr) {
    var map = {};
    zrUtil.each(arr, function (val) {
      map[val] = 1;
    });
    arr.length = 0;
    zrUtil.each(map, function (flag, val) {
      arr.push(val);
    });
  }
  
  module.exports = _default;