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node_modules/echarts/lib/chart/treemap/helper.js 3.03 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.
  */
  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.
  
  
  function getPathToRoot(node) {
    var path = [];
  
    while (node) {
      node = node.parentNode;
      node && path.push(node);
    }
  
    return path.reverse();
  }
  
  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).
  
  
  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;
  }
  
  exports.retrieveTargetInfo = retrieveTargetInfo;
  exports.getPathToRoot = getPathToRoot;
  exports.aboveViewRoot = aboveViewRoot;
  exports.wrapTreePathInfo = wrapTreePathInfo;