echarts/src/chart/treemap/treemapAction.js

A powerful charting and visualization library for browser

/**
 * @file Treemap action
 */

import * as echarts from '../../echarts';
import * as helper from '../helper/treeHelper';

var noop = function () {};

var actionTypes = [
    'treemapZoomToNode',
    'treemapRender',
    'treemapMove'
];

for (var i = 0; i < actionTypes.length; i++) {
    echarts.registerAction({type: actionTypes[i], update: 'updateView'}, noop);
}

echarts.registerAction(
    {type: 'treemapRootToNode', update: 'updateView'},
    function (payload, ecModel) {

        ecModel.eachComponent(
            {mainType: 'series', subType: 'treemap', query: payload},
            handleRootToNode
        );

        function handleRootToNode(model, index) {
            var types = ['treemapZoomToNode', 'treemapRootToNode'];
            var targetInfo = helper.retrieveTargetInfo(payload, types, model);

            if (targetInfo) {
                var originViewRoot = model.getViewRoot();
                if (originViewRoot) {
                    payload.direction = helper.aboveViewRoot(originViewRoot, targetInfo.node)
                        ? 'rollUp' : 'drillDown';
                }
                model.resetViewRoot(targetInfo.node);
            }
        }
    }
);