vxe-table-select-area
Version:
一个基于 vxe-table 的可区域选中复制、粘贴的组件
278 lines (274 loc) • 10.5 kB
JavaScript
import XEUtils from 'xe-utils'
import UtilTools from '../../tools/utils'
import DomTools from '../../tools/dom'
const cellType = 'footer'
function mergeFooterMethod (mergeFooterList, _rowIndex, _columnIndex) {
for (let mIndex = 0; mIndex < mergeFooterList.length; mIndex++) {
const { row: mergeRowIndex, col: mergeColIndex, rowspan: mergeRowspan, colspan: mergeColspan } = mergeFooterList[mIndex]
if (mergeColIndex > -1 && mergeRowIndex > -1 && mergeRowspan && mergeColspan) {
if (mergeRowIndex === _rowIndex && mergeColIndex === _columnIndex) {
return { rowspan: mergeRowspan, colspan: mergeColspan }
}
if (_rowIndex >= mergeRowIndex && _rowIndex < mergeRowIndex + mergeRowspan && _columnIndex >= mergeColIndex && _columnIndex < mergeColIndex + mergeColspan) {
return { rowspan: 0, colspan: 0 }
}
}
}
}
export default {
name: 'VxeTableFooter',
props: {
footerTableData: Array,
tableColumn: Array,
fixedColumn: Array,
fixedType: String,
size: String
},
mounted () {
const { $parent: $xetable, $el, $refs, fixedType } = this
const { elemStore } = $xetable
const prefix = `${fixedType || 'main'}-footer-`
elemStore[`${prefix}wrapper`] = $el
elemStore[`${prefix}table`] = $refs.table
elemStore[`${prefix}colgroup`] = $refs.colgroup
elemStore[`${prefix}list`] = $refs.tfoot
elemStore[`${prefix}xSpace`] = $refs.xSpace
},
destroyed () {
const { $parent: $xetable, fixedType } = this
const { elemStore } = $xetable
const prefix = `${fixedType || 'main'}-footer-`
elemStore[`${prefix}wrapper`] = null
elemStore[`${prefix}table`] = null
elemStore[`${prefix}colgroup`] = null
elemStore[`${prefix}list`] = null
elemStore[`${prefix}xSpace`] = null
},
render (h) {
let { _e, $parent: $xetable, fixedType, fixedColumn, tableColumn, footerTableData } = this
const {
$listeners: tableListeners,
tId,
footerRowClassName,
footerCellClassName,
footerRowStyle,
footerCellStyle,
footerAlign: allFooterAlign,
mergeFooterList,
footerSpanMethod,
align: allAlign,
scrollXLoad,
columnKey,
columnOpts,
showFooterOverflow: allColumnFooterOverflow,
currentColumn,
overflowX,
scrollbarWidth,
tooltipOpts,
visibleColumn,
expandColumn
} = $xetable
// 如果是使用优化模式
if (fixedType) {
// 如果存在展开行使用全量渲染
if (!expandColumn && (scrollXLoad || allColumnFooterOverflow)) {
if (!mergeFooterList.length || !footerSpanMethod) {
tableColumn = fixedColumn
} else {
tableColumn = visibleColumn
}
} else {
tableColumn = visibleColumn
}
}
return h('div', {
class: ['vxe-table--footer-wrapper', fixedType ? `fixed-${fixedType}--wrapper` : 'body--wrapper'],
attrs: {
xid: tId
},
on: {
scroll: this.scrollEvent
}
}, [
fixedType ? _e() : h('div', {
class: 'vxe-body--x-space',
ref: 'xSpace'
}),
h('table', {
class: 'vxe-table--footer',
attrs: {
xid: tId,
cellspacing: 0,
cellpadding: 0,
border: 0
},
ref: 'table'
}, [
/**
* 列宽
*/
h('colgroup', {
ref: 'colgroup'
}, tableColumn.map((column, $columnIndex) => {
return h('col', {
attrs: {
name: column.id
},
key: $columnIndex
})
}).concat(scrollbarWidth ? [
h('col', {
attrs: {
name: 'col_gutter'
}
})
] : [])),
/**
* 底部
*/
h('tfoot', {
ref: 'tfoot'
}, footerTableData.map((list, _rowIndex) => {
const $rowIndex = _rowIndex
return h('tr', {
class: ['vxe-footer--row', footerRowClassName ? XEUtils.isFunction(footerRowClassName) ? footerRowClassName({ $table: $xetable, _rowIndex, $rowIndex, fixed: fixedType, type: cellType }) : footerRowClassName : ''],
style: footerRowStyle ? (XEUtils.isFunction(footerRowStyle) ? footerRowStyle({ $table: $xetable, _rowIndex, $rowIndex, fixed: fixedType, type: cellType }) : footerRowStyle) : null
}, tableColumn.map((column, $columnIndex) => {
const { type, showFooterOverflow, footerAlign, align, footerClassName } = column
const showAllTip = tooltipOpts.showAll || tooltipOpts.enabled
const isColGroup = column.children && column.children.length
const fixedHiddenColumn = fixedType ? column.fixed !== fixedType && !isColGroup : column.fixed && overflowX
const footOverflow = XEUtils.isUndefined(showFooterOverflow) || XEUtils.isNull(showFooterOverflow) ? allColumnFooterOverflow : showFooterOverflow
const footAlign = footerAlign || align || allFooterAlign || allAlign
let showEllipsis = footOverflow === 'ellipsis'
const showTitle = footOverflow === 'title'
const showTooltip = footOverflow === true || footOverflow === 'tooltip'
let hasEllipsis = showTitle || showTooltip || showEllipsis
const attrs = { colid: column.id }
const tfOns = {}
const columnIndex = $xetable.getColumnIndex(column)
const _columnIndex = $xetable.getVTColumnIndex(column)
const itemIndex = _columnIndex
const params = { $table: $xetable, $grid: $xetable.xegrid, _rowIndex, $rowIndex, column, columnIndex, $columnIndex, _columnIndex, itemIndex, items: list, fixed: fixedType, type: cellType, data: footerTableData }
// 虚拟滚动不支持动态高度
if (scrollXLoad && !hasEllipsis) {
showEllipsis = hasEllipsis = true
}
if (showTitle || showTooltip || showAllTip) {
tfOns.mouseenter = evnt => {
if (showTitle) {
DomTools.updateCellTitle(evnt.currentTarget, column)
} else if (showTooltip || showAllTip) {
$xetable.triggerFooterTooltipEvent(evnt, params)
}
}
}
if (showTooltip || showAllTip) {
tfOns.mouseleave = evnt => {
if (showTooltip || showAllTip) {
$xetable.handleTargetLeaveEvent(evnt)
}
}
}
if (tableListeners['footer-cell-click']) {
tfOns.click = evnt => {
$xetable.emitEvent('footer-cell-click', Object.assign({ cell: evnt.currentTarget }, params), evnt)
}
}
if (tableListeners['footer-cell-dblclick']) {
tfOns.dblclick = evnt => {
$xetable.emitEvent('footer-cell-dblclick', Object.assign({ cell: evnt.currentTarget }, params), evnt)
}
}
// 合并行或列
if (mergeFooterList.length) {
const spanRest = mergeFooterMethod(mergeFooterList, _rowIndex, _columnIndex)
if (spanRest) {
const { rowspan, colspan } = spanRest
if (!rowspan || !colspan) {
return null
}
if (rowspan > 1) {
attrs.rowspan = rowspan
}
if (colspan > 1) {
attrs.colspan = colspan
}
}
} else if (footerSpanMethod) {
// 自定义合并方法
const { rowspan = 1, colspan = 1 } = footerSpanMethod(params) || {}
if (!rowspan || !colspan) {
return null
}
if (rowspan > 1) {
attrs.rowspan = rowspan
}
if (colspan > 1) {
attrs.colspan = colspan
}
}
return h('td', {
class: ['vxe-footer--column', column.id, {
[`col--${footAlign}`]: footAlign,
[`col--${type}`]: type,
'col--last': $columnIndex === tableColumn.length - 1,
'fixed--hidden': fixedHiddenColumn,
'col--ellipsis': hasEllipsis,
'col--current': currentColumn === column
}, UtilTools.getClass(footerClassName, params), UtilTools.getClass(footerCellClassName, params)],
attrs,
style: footerCellStyle ? (XEUtils.isFunction(footerCellStyle) ? footerCellStyle(params) : footerCellStyle) : null,
on: tfOns,
key: columnKey || columnOpts.useKey ? column.id : $columnIndex
}, [
h('div', {
class: ['vxe-cell', {
'c--title': showTitle,
'c--tooltip': showTooltip,
'c--ellipsis': showEllipsis
}]
}, column.renderFooter(h, params))
])
}).concat(scrollbarWidth ? [
h('td', {
class: 'vxe-footer--gutter col--gutter'
})
] : []))
}))
])
])
},
methods: {
/**
* 滚动处理
* 如果存在列固定左侧，同步更新滚动状态
* 如果存在列固定右侧，同步更新滚动状态
*/
scrollEvent (evnt) {
const { $parent: $xetable, fixedType } = this
const { $refs, scrollXLoad, triggerScrollXEvent, lastScrollLeft } = $xetable
const { tableHeader, tableBody, tableFooter, validTip } = $refs
const headerElem = tableHeader ? tableHeader.$el : null
const footerElem = tableFooter ? tableFooter.$el : null
const bodyElem = tableBody.$el
const scrollLeft = footerElem ? footerElem.scrollLeft : 0
const isX = scrollLeft !== lastScrollLeft
$xetable.lastScrollLeft = scrollLeft
$xetable.lastScrollTime = Date.now()
if (headerElem) {
headerElem.scrollLeft = scrollLeft
}
if (bodyElem) {
bodyElem.scrollLeft = scrollLeft
}
if (scrollXLoad && isX) {
triggerScrollXEvent(evnt)
}
if (isX && validTip && validTip.visible) {
validTip.updatePlacement()
}
$xetable.emitEvent('scroll', { type: cellType, fixed: fixedType, scrollTop: bodyElem.scrollTop, scrollLeft, isX, isY: false }, evnt)
}
}
}