antd/lib/table#TableEventListeners TypeScript Examples
The following examples show how to use
antd/lib/table#TableEventListeners.
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Example #1
| Source File: index.tsx From gant-design with MIT License | 4 votes |
|
GantTableList = function GantTableList<T extends Record>(props: GantTableListProps<T>, ref: React.Ref<HTMLDivElement>) {
const {
pagination,
rowSelection,
rowKey,
dataSource,
isZebra,
editable,
onRow: originOnRow,
bordered: customBorderd,
scroll,
wrap,
footerDirection,
flex,
orderList,
light,
spacing,
cellPadding,
onSave,
expandedRowKeys,
onExpand,
onExpandedRowsChange,
headerRight,
editActions,
tableWraper,
withIndex,
virtualScroll: virtualScrollConfig,
resizable: resizeCell,
onScroll,
defaultExpandAllRows
} = props
/* =======================warning======================= */
if (process.env.NODE_ENV !== "production") {
warning(
!("flex" in props),
`GantTableList \`flex\` is deprecated, please do not use`
)
warning(
!("resizeCell" in props),
`GantTableList \`resizeCell\` is deprecated, please use \`resizable\` instead`
)
}
const [tableKey] = useState(() => { // 用于缓存列宽度
if (props.tableKey) {
return props.tableKey
}
if (props.columns && props.columns.length) {
const str = props.columns.map(item => item.dataIndex + item.title).join('')
return window.escape(str).replace(/%u/g, '')
}
return Math.random().toString(32).slice(2)
})
const computedRowKey: RowKey<T> = useCallback(
(record, index) => {
if (!record) return index
const recordKey = typeof rowKey === 'function' ? rowKey(record, index) : record[rowKey || defaultKey];
return recordKey === undefined ? index : recordKey
}, [rowKey]
)
const scrollY = useMemo<string | number>(() => _.get(scroll, 'y') as string | number, [scroll])
// 有子节点禁用排序功能
//#region
// 是否是树形结构
const isTree: boolean = useMemo(() => dataSource.some(item => _.get(item, 'children.length')), [dataSource])
// 树状结构或者编辑状态下 禁止拖拽
const sortable = useMemo(() => isTree ? false : !!props.onDragEnd, [isTree, props.onDragEnd])
const [lock, setLock] = useState(true) // 控制onSave回调
const isEdit = useMemo(() => editable === EditStatus.EDIT, [editable])
// level-1层数据复制dataSource，防止数据污染
const dataList = useMemo(() => _.cloneDeep(dataSource), [dataSource])
// level-1层数据，编辑时数据
const [cacheDataList, setCacheDataList] = useState([])
useEffect(() => {
// edit状态下打开锁，其他状态不变
if (isEdit) {
setLock(false)
}
setCacheDataList(list => {
if (isEdit) {
return cloneDatasource(dataList)
}
return []
})
}, [dataList, isEdit])
//#endregion
// 处理表格columns，可能有嵌套头部
//#region
const [columns, setColumns] = useState(props.columns);
useEffect(() => {
setColumns(props.columns)
}, [props.columns])
// 展开的expandedRowKeys
const [expandRowKeys, setexpandRowKeys] = useState([])
useEffect(() => {
if (Array.isArray(expandedRowKeys)) {
setexpandRowKeys(expandedRowKeys)
}
}, [expandedRowKeys])
// 是否触发虚拟滚动
const virtualScroll = useMemo(() => !!(scrollY && virtualScrollConfig), [scrollY, virtualScrollConfig])
const virtualScrollConfigInner = useMemo<VirtualScroll<T>>(() => (virtualScroll ? virtualScrollConfig === true ? defaultVirtualScrollConfig : { ...defaultVirtualScrollConfig, ...virtualScrollConfig } : {} as VirtualScroll<T>), [virtualScroll, virtualScrollConfig])
// 虚拟滚动的条数
const thresholdInner = useMemo(() => _.get(virtualScrollConfigInner, 'threshold', defaultVirtualScrollConfig.threshold), [virtualScrollConfigInner])
/**
* level-2层数据
* 根据是否编辑获取数据列表
* 同时添加g-index序号，获取所有可展开rowKey
* 编辑状态下会有__origin属性
*/
const [dataListWithIndex, expandableRowKeys] = useMemo(() => {
const list = isEdit ? cacheDataList : dataList;
return computeIndexAndRowKey<T>(list, computedRowKey)
}, [isEdit, cacheDataList, dataList, computedRowKey])
useEffect(() => {
// 默认打开所有子菜单
if (defaultExpandAllRows && _.isUndefined(expandedRowKeys)) {
setexpandRowKeys(expandableRowKeys)
}
}, [])
/**
* 虚拟滚动的相关数据
*/
const [outlineNum, setOutLineNum] = useState(0)
/**
* level-2层数据
* 总数据、实际要渲染的rowkeys，用这个数据计算实际高度
* 通过复制dataListWithIndex数据计算，因为在虚拟滚动下要刨除掉children，但是不能影响源数据
*/
const [renderListAll, renderRowKeys, tilingListAll] = useMemo(() => {
if (dataListWithIndex.length === 0) return [[], [], []]
return computeIndex<T>(dataListWithIndex, expandRowKeys, virtualScroll)
}, [dataListWithIndex, expandRowKeys])
// 单元格padding和border高度
const padddingBorder = useMemo(() => 2 * parseInt(cellPadding as string) + 1, [cellPadding])
// dom高度
const originRowHeight = useMemo(() => {
let height = parseInt(virtualScrollConfigInner.rowHeight as string)
if (rowSelection) {
height = Math.max(height, 20 + padddingBorder)
}
if (isTree) {
return Math.max(height, 18 + padddingBorder)
}
return height || 0
}, [virtualScrollConfigInner, isTree, padddingBorder, rowSelection])
// 行高
// 对单元格中的选择框和树状结构的展开按钮有影响
const originLineHeight = useMemo(() => {
if (virtualScroll && virtualScrollConfigInner.center) {
return (originRowHeight - padddingBorder) + 'px'
}
}, [virtualScrollConfigInner, padddingBorder, virtualScroll])
// 计算滚动比例
const rate = 1
// const rate = useMemo(() => Math.ceil(Math.chain(renderRowKeys.length).multiply(originRowHeight).divide(3e+7).done()), [renderRowKeys, originRowHeight])
// 逻辑上的行高，包括border
const rowHeight = useMemo(() => originRowHeight / rate + 1, [originRowHeight, rate])
const mainHeight = useMemo(() => renderRowKeys.length * rowHeight, [renderRowKeys, rowHeight])
// 最终渲染的数据
const renderList = useMemo(() => {
let list = renderListAll
if (virtualScroll) {
list = getVirtualList(outlineNum, thresholdInner, renderRowKeys, tilingListAll)
}
return list
}, [virtualScroll, outlineNum, renderRowKeys, tilingListAll])
//#endredion
const minHeight = useMemo(() => renderList.length > 0 ? scrollY : undefined, [scrollY, renderList])
const storageWidth = useMemo(() => getStorageWidth(tableKey)['table'] || _.get(scroll, 'x') || '100%', [tableKey])
const headerFixed = useMemo(() => !_.isUndefined(scrollY), [scrollY])
const bordered = useMemo(() => light ? false : customBorderd, [light, customBorderd])
// 当展开项发生变化的时候主动触发table的更新，去重新计算滚动条
const [emitReCompute, setEmitReCompute] = useState(0)
// 业务层修改editable状态的时候，计算修改前后数据的
useEffect(() => {
if (editable === EditStatus.SAVE && !lock) {
// 保存之后，锁上保证下次更新不会再次进入
setLock(true)
console.time('计算diff')
const diffData = diffList(dataList, cacheDataList, isTree)
console.timeEnd('计算diff')
onSave(_.cloneDeep(cacheDataList), diffData)
}
}, [editable, dataList, cacheDataList, isTree, lock])
//行选择
//#region
const [computedRowSelection, setselectedRowKeys, footerselection] = useRowSelection(rowSelection, dataListWithIndex, bordered)
const computedPagination = usePagination(pagination, computedRowSelection, dataSource.length)
const footerCallback = useCallback((currentPageData) => {
return (
<>
{currentPageData.length ? footerselection : null}
<div className='gant-table-footer-inner' style={{ flexDirection: footerDirection }}>
<div className='gant-table-footer-tail' style={{ flexDirection: footerDirection }}>
{typeof props.tail === 'function' && props.tail(currentPageData)}
</div>
{computedPagination && <Pagination size='small' {...computedPagination} />}
</div>
</>
)
}, [props.tail, computedPagination, footerselection, footerDirection])
const footer = useMemo(() => {
if (!(dataSource.length && footerselection) && !props.tail && !computedPagination) return null
return footerCallback
}, [props.tail, dataSource, computedPagination, footerselection])
//#endregion
// 滚动加载
//#region
const onscroll = useCallback(_.debounce<any>((e) => {
// 编辑状态下不触发whell事件
if (!onScroll || isEdit) return
if (e.type === 'wheel') {
// 向下滚动，视图上移
if (e.deltaY > 0) {
onScroll()
}
// 向上滚动，视图下移
else { }
} else {
const bodyTable: ScrollElement = e.target
if (bodyTable.scrollTop > bodyTable.scrollTopBackUp) { // 向下滚动
const scrollAvailable = bodyTable.scrollHeight - bodyTable.clientHeight
const lef = scrollAvailable - bodyTable.scrollTop
if (lef <= bodyTable.scrollHeight * 0.01) { // 滚动到临界点
if (!bodyTable.scrollloaded) {
bodyTable.scrollloaded = true
onScroll()
bodyTable.scrollloaded = false
}
} else {
// scrollloaded控制在一定距离内不会重复调用
bodyTable.scrollloaded = false
}
}
bodyTable.scrollTopBackUp = bodyTable.scrollTop
}
e.preventDefault()
}, 50), [onScroll, isEdit])
const [tableGroup] = useState(new Map<string, HTMLTableElement>())
/**
* 计算虚拟滚动误差
* 平均每滚动多少条要修正误差
*/
const scrollError = useMemo(() => {
if (scrollY) {
// 最后一屏之前渲染的条数
const leave = renderRowKeys.length - thresholdInner
// 最大滚动高度
const maxScroll = mainHeight - parseInt(scrollY as string)
// 最多滚动多少条
const maxScrollLength = Math.floor(maxScroll / rowHeight)
// 偏差条数
const error = leave - maxScrollLength
if (error > 0) {
return Math.floor(maxScrollLength / error)
}
}
return 0
}, [mainHeight, scrollY, renderRowKeys, thresholdInner, rowHeight])
/**
* 虚拟滚动
*/
const onVScroll = useCallback((e) => {
const { scrollTop } = e.currentTarget
const outTopLinevir = Math.floor(scrollTop / rowHeight); // 用于计算table的位置
// 校正移动的条数，修正设置的值，防止在rate不为1的情况下，出现数据遗漏的问题
const outTopLine = outTopLinevir + (scrollError > 0 ? Math.floor(outTopLinevir / scrollError) : 0)
// 设置数据
setOutLineNum(outTopLine)
// 实际渲染的高度
// td有个border-bottom，要加1
const domHeight = thresholdInner * rowHeight * rate
const outTopHeight = outTopLinevir * rowHeight
let top = Math.max(0, Math.min(mainHeight - domHeight, outTopHeight))
tableGroup.forEach(table => setStyle(table, `transform: translate(0, ${top}px)`))
// const table = tableGroup.get('bodyTable')
// setStyle(table, `transform: translate(0, ${top}px)`)
// e.preventDefault()
}, [thresholdInner, rowHeight, renderRowKeys, rate, mainHeight, tableGroup, scrollError])
// 绑定滚动事件
const bindScroll = useCallback(
() => {
// if (tableWraper && _.isEmpty(computedPagination)) {
if (tableWraper) {
const bodyTable: ScrollElement = tableWraper.querySelector('.ant-table-body');
bodyTable.scrollTopBackUp = bodyTable.scrollTop || 0
bodyTable.addEventListener('wheel', onscroll, false)
bodyTable.addEventListener('scroll', onscroll, false)
if (virtualScroll) {
bodyTable.addEventListener('wheel', onVScroll, false)
bodyTable.addEventListener('scroll', onVScroll, false)
}
}
},
[tableWraper, onscroll, computedPagination, virtualScroll, onVScroll],
)
// 移除滚动事件
const removeScroll = useCallback(
() => {
if (tableWraper) {
const bodyTable = tableWraper.querySelector('.ant-table-body');
bodyTable.removeEventListener('wheel', onscroll, false)
bodyTable.removeEventListener('scroll', onscroll, false)
if (virtualScroll) {
bodyTable.removeEventListener('wheel', onVScroll, false)
bodyTable.removeEventListener('scroll', onVScroll, false)
}
}
},
[tableWraper, onscroll, virtualScroll, onVScroll],
)
useEffect(() => {
bindScroll()
return () => {
removeScroll()
}
}, [tableWraper, bindScroll, removeScroll])
// table header
const onHeaderCell = useCallback(
(col, { hasFixed, hasChildren, index, originOnHeaderCell }) => {
const { key, dataIndex, fixed, align, children, } = col
// 明亮模式下或者是固定列以及有嵌套表头不允许resize
const resizable = !(light || fixed || hasChildren)
type resizeCellProps = Partial<{
orderType: string,
key: string,
flex: boolean,
fixed: boolean,
hasFixed: boolean,
tableKey: string,
dataIndex: string,
headerFixed: boolean,
resizable: boolean,
}>
interface cellProps extends resizeCellProps {
style: React.CSSProperties
}
let headerCellProps: cellProps = {
style: { width: col.width, maxWidth: col.width } // 防止折行模式下，被内容撑出
}
const ordered = orderList.find(order => dataIndex === order.fieldName)
if (ordered) {
headerCellProps.orderType = ordered.orderType
}
if (resizeCell) headerCellProps = ({
...headerCellProps,
key,
flex,
fixed,
hasFixed, // 有固定的列
tableKey,
dataIndex,
headerFixed, // 表格头固定
// 当前列是否可以被缩放，弹性缩放下，最后一列不允许缩放
resizable: flex ? resizable && index !== length - 1 : resizable,
})
if (typeof originOnHeaderCell === 'function') return { ...headerCellProps, ...originOnHeaderCell(col) }
return headerCellProps
},
[light, cellPadding, tableKey, orderList, resizeCell, flex, headerFixed],
)
const onCell = useCallback(
(col, record, rowIndex, { hasFixed, originOnCell }) => {
const { dataIndex, editConfig, fixed } = col
const cellEditable = _.isPlainObject(editConfig) && !_.isEmpty(editConfig)
// 修正rowIndex值
const computedRowIndex = rowIndex + outlineNum
// 虚拟滚动或者带有固定列的表格不换行
// 根据是否有固定列，以及是否是虚拟滚动来控制文本是否折行
const cWrap = (virtualScroll || hasFixed) ? false : wrap
const style: React.CSSProperties = { width: col.width }
if (!cWrap) {
// 防止折行模式下，被内容撑出
// 如果有maxWidth，会有出现缩小单元格时内容在单元格外的异常
style.maxWidth = col.width
}
let defaultCellProps = {
style,
wrap: cWrap,
light,
record: { ...record },
sortable,
rowIndex: computedRowIndex,
dataIndex,
cellPadding,
editConfig: {},
}
if (cellEditable) defaultCellProps.editConfig = editConfig
if (originOnCell) {
return { ...defaultCellProps, ...originOnCell(record, computedRowIndex) }
}
return defaultCellProps
},
[wrap, light, sortable, tableKey, cellPadding, headerFixed, virtualScroll, outlineNum],
)
/**
* columns API
* @param editConfig object 编辑对象
* showDirt boolean 是否显示脏标记
* render function 编辑时的渲染函数
* editValue string|function 编辑组件的值
*/
const convertColumns = useCallback(
(cols, nest = false): GColumnProps<T>[] => {
const hasFixed = cols.some(col => col.fixed)
const computedCols = cols.map(({ width, onHeaderCell: originOnHeaderCell, onCell: originOnCell, render: originRender, ...col }, index) => {
// 添加自定义render
col.render = (...args) => renderColumnItem({ ...col, render: originRender }, ...args as [string, object, number])
const hasChildren = _.get(col, 'children.length')
if (hasChildren) {
// 嵌套表头不允许resize
col.children = convertColumns(col.children, true)
}
col.width = getStorageWidth(tableKey)[col.dataIndex] || width
col.onHeaderCell = col => onHeaderCell(col, { hasFixed, hasChildren, index, originOnHeaderCell })
col.onCell = (record, rowIndex) => onCell(col, record, rowIndex + outlineNum, { hasFixed, originOnCell })
return col
})
if (withIndex >= 0 && !nest) {
const index = {
dataIndex: 'g-index',
title: '序号',
width: 40,
}
return [...computedCols.slice(0, withIndex), index, ...computedCols.slice(withIndex)]
}
return computedCols
},
[onHeaderCell, onCell, tableKey, withIndex, outlineNum]
)
//#endregion
// 处理表格行删除线
const onRow = useCallback(
(record, index) => {
const pureRecord = getPureRecord(record)
type OptialProps = Partial<{
onClick: (e: React.MouseEvent) => void
}>
interface onRowProps extends OptialProps {
isDeleted: boolean,
rowIndex: number,
sortable: boolean,
originRecord?: T
}
const rowIndex = index + outlineNum
const defaultRowProps: onRowProps = {
isDeleted: record.isDeleted,
rowIndex,
sortable
}
if (isEdit) {
defaultRowProps.originRecord = record[originKey]
}
let originListener: TableEventListeners = {}
if (originOnRow) {
originListener = originOnRow(pureRecord, rowIndex)
}
if (_.get(rowSelection, 'clickable')) {
const getCheckBoxProps = _.get(rowSelection, 'getCheckboxProps')
let checkable = true
if (getCheckBoxProps && typeof getCheckBoxProps === 'function') {
const boxProps = getCheckBoxProps(pureRecord)
checkable = !_.get(boxProps, 'disable')
}
if (checkable) {
defaultRowProps.onClick = e => {
setselectedRowKeys(record)
if (typeof originListener.onClick === 'function') {
originListener.onClick(e)
}
}
}
}
if (originOnRow) {
return {
...originListener,
...defaultRowProps
}
}
return defaultRowProps
},
[sortable, setselectedRowKeys, rowSelection, outlineNum]
)
// 表格中所有使用的组件
// 控制什么时候显示可编辑组件
//#region
const onDragEnd = useCallback(
(result) => {
if (!result.destination) return
// 要减掉第一行，所以需要要减1
let sourceIndex = result.source.index;
let destinationIndex = result.destination.index;
const list = switchIndex(dataSource, sourceIndex, destinationIndex)
sortable && props.onDragEnd(list)
},
[dataSource, sortable]
)
const components = useMemo(
() => (
{
table: TableComponent,
header: {
// wrapper: HeaderWrapper,
row: HeaderRow,
cell: HeaderCell,
},
body: {
wrapper: (sortable ? BodyWrapper : 'tbody') as React.ReactType,
row: BodyRow, // 添加删除线支持
cell: BodyCell,
},
}
),
[resizeCell, BodyWrapper, sortable, HeaderCell]
);
//#endregion
const tableColumns = useMemo(() => convertColumns(columns), [columns, convertColumns, orderList])
// dataIndex的索引
const computedColIndex = useMemo(() => getComputedColIndex(tableColumns), [tableColumns])
const expandIconColumnIndex = useMemo(() => {
let index = 0
index = Math.max(tableColumns.findIndex(item => item.expandColumn), 0)
return computedRowSelection ? index + 1 : index
}, [tableColumns, computedRowSelection])
// 缺省显示
const emptyText = useMemo(() => {
return (
<div className="gant-align-center" style={{ height: scrollY }}>
<Empty image={Empty.PRESENTED_IMAGE_SIMPLE} description={props.emptyDescription} />
</div>
)
}, [scrollY, props.emptyDescription])
// 展开变化,触发重新计算滚动相关数据
const expandedRowsChange = useCallback(
(expandedRowKeys: string[] | number[]) => {
setEmitReCompute(e => e + 1)
},
[],
)
const expand = useCallback(
(expanded, record) => {
let rowkey = expandRowKeys
const key = record["g-row-key"];
if (expanded) {
rowkey = [...expandRowKeys, key]
} else {
// row was collapse
const expandedRowIndex = expandRowKeys.indexOf(key);
if (expandedRowIndex !== -1) rowkey = [...expandRowKeys.slice(0, expandedRowIndex), ...expandRowKeys.slice(expandedRowIndex + 1)]
}
setexpandRowKeys(rowkey)
if (onExpandedRowsChange) {
onExpandedRowsChange(rowkey)
}
if (onExpand) {
const pureRecord = getPureRecord<T>(record)
onExpand(expanded, pureRecord)
}
},
[onExpandedRowsChange, onExpand, expandRowKeys],
)
// 劫持headerRight
let headerRightElement = useMemo(() => {
let actions = null
if (isEdit && typeof editActions === 'function') {
const keys = computedRowSelection ? (computedRowSelection.selectedRowKeys || []) : []
actions = editActions([cacheDataList, setCacheDataList], keys)
}
return (
<>
{actions}
{headerRight}
</>
)
}, [isEdit, editActions, cacheDataList, headerRight, computedRowSelection])
const onResize = useCallback(
() => {
setEmitReCompute(e => e + 1)
},
[],
)
const dataContextValue = useMemo(() => ({
isTree,
cellPadding,
dataSource: cacheDataList,
setDataSource: setCacheDataList,
computedRowKey,
editable, // 用于控制脏标记的显示，如果是save就会清除掉脏标记
computedColIndex,
computedRowSelection,
originRowHeight,
originLineHeight,
}), [isTree, cellPadding, cacheDataList, editable, computedColIndex, computedRowSelection, originRowHeight, originLineHeight])
const tableContextValue = useMemo(() => ({
light,
spacing,
dataSource, // 滚动加载的时候触发更新header的overflow
emitReCompute, // 展开的时候触发更新header的overflow
headerFixed,
tableColumns,
onResize,
virtualScroll,
mainHeight,
tableGroup,
outlineNum,
thresholdInner,
renderRowKeys,
storageWidth,
scrollY,
}), [light, spacing, dataSource, emitReCompute, tableColumns, headerFixed, onResize, virtualScroll, mainHeight, tableGroup, outlineNum, thresholdInner, renderRowKeys, storageWidth, scrollY])
const bodyWrapperContext = useMemo(() => ({ onDragEnd }), [onDragEnd])
const style = useMemo(() => {
const s = { ...(props.style || {}) }
s['--padding'] = getStyleText(cellPadding)
s['--lineHeight'] = getStyleText(originLineHeight)
return s
}, [props.style, cellPadding, originLineHeight])
const getPrefixCls = (cls) => 'gant-' + cls;
const renderTable = () => {
const {
pagination,
title = '',
className,
headerLeft,
headerMarginBottom,
bodyStyle,
scroll = {},
headerProps,
locale = {},
...tableProps
} = props;
const tablePrefixCls = getPrefixCls('table');
const reizetablePrefixCls = getPrefixCls('table-resizable');
const sortablePrefixCls = getPrefixCls('table-sortable');
const zebraPrefixCls = getPrefixCls('table-zebra');
const lightPrefixCls = getPrefixCls('table-light');
return (
<>
{(title || headerRightElement || headerLeft) && (
<Header
title={title}
{...headerProps}
beforeExtra={headerLeft}
extra={headerRightElement}
/>
)}
<DataContext.Provider value={dataContextValue}>
<TableContext.Provider value={tableContextValue}>
<TableBodyWrapperContext.Provider value={bodyWrapperContext}>
<Table
size='small'
scroll={{ ...scroll, x: storageWidth }}
locale={{ emptyText, ...locale }}
{...tableProps}
expandedRowKeys={expandRowKeys}
onExpandedRowsChange={expandedRowsChange}
onExpand={expand}
bordered={bordered}
dataSource={renderList}
onRow={onRow}
// rowKey={computedRowKey}
rowKey='g-row-key'
components={{ ...components, ...tableProps.components }}
pagination={false}
footer={footer}
bodyStyle={{ minHeight, ...bodyStyle, }}
className={
classnames(
className,
tablePrefixCls,
{
[reizetablePrefixCls]: resizeCell,
// 明亮模式禁用斑马线
[zebraPrefixCls]: !light && isZebra,
[sortablePrefixCls]: sortable,
[lightPrefixCls]: light,
}
)
}
columns={tableColumns}
rowSelection={computedRowSelection as TableRowSelection<T>}
expandIconColumnIndex={expandIconColumnIndex}
style={style}
/>
</TableBodyWrapperContext.Provider>
</TableContext.Provider>
</DataContext.Provider>
</>
)
}
return (
<div ref={ref}>
{renderTable()}
</div >
)
}
