echarts preprocessor 源码
echarts preprocessor 代码
文件路径：/src/component/timeline/preprocessor.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.
*/
// @ts-nocheck
import * as zrUtil from 'zrender/src/core/util';
export default function timelinePreprocessor(option) {
let timelineOpt = option && option.timeline;
if (!zrUtil.isArray(timelineOpt)) {
timelineOpt = timelineOpt ? [timelineOpt] : [];
}
zrUtil.each(timelineOpt, function (opt) {
if (!opt) {
return;
}
compatibleEC2(opt);
});
}
function compatibleEC2(opt) {
const type = opt.type;
const ec2Types = {'number': 'value', 'time': 'time'};
// Compatible with ec2
if (ec2Types[type]) {
opt.axisType = ec2Types[type];
delete opt.type;
}
transferItem(opt);
if (has(opt, 'controlPosition')) {
const controlStyle = opt.controlStyle || (opt.controlStyle = {});
if (!has(controlStyle, 'position')) {
controlStyle.position = opt.controlPosition;
}
if (controlStyle.position === 'none' && !has(controlStyle, 'show')) {
controlStyle.show = false;
delete controlStyle.position;
}
delete opt.controlPosition;
}
zrUtil.each(opt.data || [], function (dataItem) {
if (zrUtil.isObject(dataItem) && !zrUtil.isArray(dataItem)) {
if (!has(dataItem, 'value') && has(dataItem, 'name')) {
// In ec2, using name as value.
dataItem.value = dataItem.name;
}
transferItem(dataItem);
}
});
}
function transferItem(opt) {
const itemStyle = opt.itemStyle || (opt.itemStyle = {});
const itemStyleEmphasis = itemStyle.emphasis || (itemStyle.emphasis = {});
// Transfer label out
const label = opt.label || (opt.label || {});
const labelNormal = label.normal || (label.normal = {});
const excludeLabelAttr = {normal: 1, emphasis: 1};
zrUtil.each(label, function (value, name) {
if (!excludeLabelAttr[name] && !has(labelNormal, name)) {
labelNormal[name] = value;
}
});
if (itemStyleEmphasis.label && !has(label, 'emphasis')) {
label.emphasis = itemStyleEmphasis.label;
delete itemStyleEmphasis.label;
}
}
function has(obj, attr) {
return obj.hasOwnProperty(attr);
}
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