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/* eslint-disable react/jsx-key */
import React, { useState, useEffect, useRef, memo } from 'react';
import { RouteContext } from '@ant-design/pro-layout';
import { history } from '@umijs/max';
import Tags from './Tags';
import styles from './index.less';
import { Scrollbars } from 'react-custom-scrollbars';
// tree遍历
function treeForeach(tree, func) {
tree.forEach((data) => {
func(data);
data.children && treeForeach(data.children, func); // 遍历子树
});
}
const TagView = ({ children, home }) => {
const [tagList, setTagList] = useState([]);
const [currentPath, setCurrentPath] = useState();
const routeContextRef = useRef();
useEffect(() => {
if (routeContextRef.current) {
handleOnChange(routeContextRef.current);
}
}, [routeContextRef.current]);
// 初始化 visitedViews，设置首页
const initTags = (routeContext) => {
// console.log(routeContext);
const { menuData } = routeContext;
if (tagList.length === 0 && menuData) {
const allarr = [];
treeForeach(menuData, (node) => {
allarr.push(node);
});
const firstTag = allarr.filter((el) => el.path === location?.hash?.replace('#', ''))[0];
if (firstTag) {
const title = firstTag.name;
const path = firstTag.path;
history.push({ pathname: firstTag.path, query: firstTag.query });
setTagList([
{
title,
path,
children: firstTag.element,
refresh: 0,
active: true,
key: firstTag.key,
},
]);
}
}
};
// 监听路由改变
const handleOnChange = (routeContext) => {
const { currentMenu } = routeContext;
// console.log(tagList);
// tags初始化
if (tagList.length === 0) {
return initTags(routeContext);
}
// 判断是否已打开过该页面
let hasOpen = false;
if (currentMenu.path) {
const tagsCopy = tagList.map((item) => {
if (currentMenu?.path === item.path) {
//console.log(item);
hasOpen = true;
// 刷新浏览器时，重新覆盖当前 path 的 children
// console.log(item);
return { ...item, active: true, children: item.children };
} else {
return { ...item, active: false };
}
});
// 没有该tag时追加一个,并打开这个tag页面
if (!hasOpen) {
const title = routeContext.title || '';
const path = currentMenu?.path;
tagsCopy.push({
title,
path,
children,
refresh: 0,
active: true,
});
}
return setTagList(tagsCopy);
}
};
// 关闭标签
const handleCloseTag = (tag) => {
const tagsCopy = tagList.map((el, i) => ({ ...el }));
// 判断关闭标签是否处于打开状态
tagList.forEach?.((el, i) => {
if (el.path === tag.path && tag.active) {
const next = tagList[i - 1];
next.active = true;
history.push({ pathname: next?.path, query: next?.query });
}
});
setTagList(tagsCopy.filter((el) => el.path !== tag?.path));
};
// 关闭所有标签
const handleCloseAll = () => {
const tagsCopy = tagList.filter((el) => el.path === home);
history.push(home);
setTagList(tagsCopy);
};
// 关闭其他标签
const handleCloseOther = (tag) => {
const tagsCopy = tagList.filter((el) => el.path === home || el.path === tag.path);
history.push({ pathname: tag?.path, query: tag?.query });
setTagList(tagsCopy);
};
const [refresh, setrefresh] = useState(true);
// 刷新选择的标签
const handleRefreshTag = async (tag) => {
// const tagsCopy = tagList.map((item) => {
// if (item.path === tag.path) {
// history.push({ pathname: tag?.path, query: tag?.query });
// return { ...item, refresh: item.refresh + 1, active: true };
// }
// return { ...item, active: false };
// });
// setTagList(tagsCopy);
await setrefresh(false);
setrefresh(true);
};
return (
<>
<RouteContext.Consumer>
{(value) => {
setTimeout(() => {
setCurrentPath(value.currentMenu?.path);
}, 0);
routeContextRef.current = value;
return null;
}}
</RouteContext.Consumer>
<div className={styles.tag_view}>
<div className={styles.tags_container}>
<Tags
tagList={tagList}
closeTag={handleCloseTag}
closeAllTag={handleCloseAll}
closeOtherTag={handleCloseOther}
refreshTag={handleRefreshTag}
home={home}
/>
</div>
</div>
<div className={styles.child}>
<div className={styles.contianbox}>
<Scrollbars
thumbMinSize={10}
autoHide
style={{ width: '100%', height: '100%' }}
hideTracksWhenNotNeeded={true}
>
{refresh && children}
</Scrollbars>
</div>
</div>
</>
);
};
export default TagView;