echarts treeAction 源码
echarts treeAction 代码
文件路径：/src/chart/tree/treeAction.ts
/*
* 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 {updateCenterAndZoom, RoamPayload} from '../../action/roamHelper';
import { Payload } from '../../util/types';
import TreeSeriesModel from './TreeSeries';
import GlobalModel from '../../model/Global';
import { EChartsExtensionInstallRegisters } from '../../extension';
import type ExtensionAPI from '../../core/ExtensionAPI';
export interface TreeExpandAndCollapsePayload extends Payload {
dataIndex: number
}
export function installTreeAction(registers: EChartsExtensionInstallRegisters) {
registers.registerAction({
type: 'treeExpandAndCollapse',
event: 'treeExpandAndCollapse',
update: 'update'
}, function (payload: TreeExpandAndCollapsePayload, ecModel) {
ecModel.eachComponent({
mainType: 'series', subType: 'tree', query: payload
}, function (seriesModel: TreeSeriesModel) {
const dataIndex = payload.dataIndex;
const tree = seriesModel.getData().tree;
const node = tree.getNodeByDataIndex(dataIndex);
node.isExpand = !node.isExpand;
});
});
registers.registerAction({
type: 'treeRoam',
event: 'treeRoam',
// Here we set 'none' instead of 'update', because roam action
// just need to update the transform matrix without having to recalculate
// the layout. So don't need to go through the whole update process, such
// as 'dataPrcocess', 'coordSystemUpdate', 'layout' and so on.
update: 'none'
}, function (payload: RoamPayload, ecModel: GlobalModel, api: ExtensionAPI) {
ecModel.eachComponent({
mainType: 'series', subType: 'tree', query: payload
}, function (seriesModel: TreeSeriesModel) {
const coordSys = seriesModel.coordinateSystem;
const res = updateCenterAndZoom(coordSys, payload, undefined, api);
seriesModel.setCenter
&& seriesModel.setCenter(res.center);
seriesModel.setZoom
&& seriesModel.setZoom(res.zoom);
});
});
}
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