echarts installCommon 源码
echarts installCommon 代码
文件路径：/src/component/visualMap/installCommon.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 { EChartsExtensionInstallRegisters } from '../../extension';
import { VisualMapOption } from './VisualMapModel';
import { PiecewiseVisualMapOption } from './PiecewiseModel';
import { ContinousVisualMapOption } from './ContinuousModel';
import { visualMapActionInfo, visualMapActionHander } from './visualMapAction';
import { visualMapEncodingHandlers } from './visualEncoding';
import { each } from 'zrender/src/core/util';
import preprocessor from './preprocessor';
let installed = false;
export default function installCommon(registers: EChartsExtensionInstallRegisters) {
if (installed) {
return;
}
installed = true;
registers.registerSubTypeDefaulter(
'visualMap', function (option: VisualMapOption) {
// Compatible with ec2, when splitNumber === 0, continuous visualMap will be used.
return (
!option.categories
&& (
!(
(option as PiecewiseVisualMapOption).pieces
? ((option as PiecewiseVisualMapOption)).pieces.length > 0
: ((option as PiecewiseVisualMapOption)).splitNumber > 0
)
|| (option as ContinousVisualMapOption).calculable
)
)
? 'continuous' : 'piecewise';
});
registers.registerAction(visualMapActionInfo, visualMapActionHander);
each(visualMapEncodingHandlers, (handler) => {
registers.registerVisual(registers.PRIORITY.VISUAL.COMPONENT, handler);
});
registers.registerPreprocessor(preprocessor);
}
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