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node_modules/echarts/src/chart/treemap/helper.js 2.23 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 function retrieveTargetInfo(payload, seriesModel) {
      if (payload
          && (
              payload.type === 'treemapZoomToNode'
              || payload.type === 'treemapRootToNode'
          )
      ) {
          var root = seriesModel.getData().tree.root;
          var targetNode = payload.targetNode;
          if (targetNode && root.contains(targetNode)) {
              return {node: targetNode};
          }
  
          var targetNodeId = payload.targetNodeId;
          if (targetNodeId != null && (targetNode = root.getNodeById(targetNodeId))) {
              return {node: targetNode};
          }
      }
  }
  
  // Not includes the given node at the last item.
  export function getPathToRoot(node) {
      var path = [];
      while (node) {
          node = node.parentNode;
          node && path.push(node);
      }
      return path.reverse();
  }
  
  export function aboveViewRoot(viewRoot, node) {
      var viewPath = getPathToRoot(viewRoot);
      return zrUtil.indexOf(viewPath, node) >= 0;
  }
  
  // From root to the input node (the input node will be included).
  export function wrapTreePathInfo(node, seriesModel) {
      var treePathInfo = [];
  
      while (node) {
          var nodeDataIndex = node.dataIndex;
          treePathInfo.push({
              name: node.name,
              dataIndex: nodeDataIndex,
              value: seriesModel.getRawValue(nodeDataIndex)
          });
          node = node.parentNode;
      }
  
      treePathInfo.reverse();
  
      return treePathInfo;
  }