{"version":3,"file":"table-grid.js","sources":["../../../../../../packages/components/table-v2/src/table-grid.tsx"],"sourcesContent":["import { computed, defineComponent, inject, ref, unref } from 'vue'\nimport {\n  DynamicSizeGrid,\n  FixedSizeGrid,\n} from '@element-plus/components/virtual-list'\nimport { isNumber, isObject } from '@element-plus/utils'\nimport { Header } from './components'\nimport { TableV2InjectionKey } from './tokens'\nimport { tableV2GridProps } from './grid'\nimport { sum } from './utils'\n\nimport type { UnwrapRef } from 'vue'\nimport type {\n  DynamicSizeGridInstance,\n  GridDefaultSlotParams,\n  GridItemKeyGetter,\n  GridItemRenderedEvtParams,\n  GridScrollOptions,\n  ResetAfterIndex,\n  Alignment as ScrollStrategy,\n} from '@element-plus/components/virtual-list'\nimport type { TableV2HeaderInstance } from './components'\nimport type { TableV2GridProps } from './grid'\n\nconst COMPONENT_NAME = 'ElTableV2Grid'\n\nconst useTableGrid = (props: TableV2GridProps) => {\n  const headerRef = ref<TableV2HeaderInstance>()\n  const bodyRef = ref<DynamicSizeGridInstance>()\n\n  const totalHeight = computed(() => {\n    const { data, rowHeight, estimatedRowHeight } = props\n\n    if (estimatedRowHeight) {\n      return\n    }\n\n    return data.length * (rowHeight as number)\n  })\n\n  const fixedRowHeight = computed(() => {\n    const { fixedData, rowHeight } = props\n\n    return (fixedData?.length || 0) * (rowHeight as number)\n  })\n\n  const headerHeight = computed(() => sum(props.headerHeight))\n\n  const gridHeight = computed(() => {\n    const { height } = props\n    return Math.max(0, height - unref(headerHeight) - unref(fixedRowHeight))\n  })\n\n  const hasHeader = computed(() => {\n    return unref(headerHeight) + unref(fixedRowHeight) > 0\n  })\n\n  const itemKey: GridItemKeyGetter = ({ data, rowIndex }) =>\n    data[rowIndex][props.rowKey]\n\n  function onItemRendered({\n    rowCacheStart,\n    rowCacheEnd,\n    rowVisibleStart,\n    rowVisibleEnd,\n  }: GridItemRenderedEvtParams) {\n    props.onRowsRendered?.({\n      rowCacheStart,\n      rowCacheEnd,\n      rowVisibleStart,\n      rowVisibleEnd,\n    })\n  }\n\n  function resetAfterRowIndex(index: number, forceUpdate: boolean) {\n    bodyRef.value?.resetAfterRowIndex(index, forceUpdate)\n  }\n\n  function scrollTo(x: number, y: number): void\n  function scrollTo(options: GridScrollOptions): void\n  function scrollTo(leftOrOptions: number | GridScrollOptions, top?: number) {\n    const header$ = unref(headerRef)\n    const body$ = unref(bodyRef)\n\n    if (isObject(leftOrOptions)) {\n      header$?.scrollToLeft(leftOrOptions.scrollLeft)\n      body$?.scrollTo(leftOrOptions)\n    } else {\n      header$?.scrollToLeft(leftOrOptions)\n      body$?.scrollTo({\n        scrollLeft: leftOrOptions,\n        scrollTop: top,\n      })\n    }\n  }\n\n  function scrollToTop(scrollTop: number) {\n    unref(bodyRef)?.scrollTo({\n      scrollTop,\n    })\n  }\n\n  function scrollToRow(row: number, strategy: ScrollStrategy) {\n    unref(bodyRef)?.scrollToItem(row, 1, strategy)\n  }\n\n  function forceUpdate() {\n    unref(bodyRef)?.$forceUpdate()\n    unref(headerRef)?.$forceUpdate()\n  }\n\n  return {\n    bodyRef,\n    forceUpdate,\n    fixedRowHeight,\n    gridHeight,\n    hasHeader,\n    headerHeight,\n    headerRef,\n    totalHeight,\n\n    itemKey,\n    onItemRendered,\n    resetAfterRowIndex,\n    scrollTo,\n    scrollToTop,\n    scrollToRow,\n  }\n}\n\nconst TableGrid = defineComponent({\n  name: COMPONENT_NAME,\n  props: tableV2GridProps,\n  setup(props, { slots, expose }) {\n    const { ns } = inject(TableV2InjectionKey)!\n\n    const {\n      bodyRef,\n      fixedRowHeight,\n      gridHeight,\n      hasHeader,\n      headerRef,\n      headerHeight,\n      totalHeight,\n\n      forceUpdate,\n      itemKey,\n      onItemRendered,\n      resetAfterRowIndex,\n      scrollTo,\n      scrollToTop,\n      scrollToRow,\n    } = useTableGrid(props)\n\n    expose({\n      forceUpdate,\n      /**\n       * @description fetch total height\n       */\n      totalHeight,\n      /**\n       * @description scroll to a position\n       */\n      scrollTo,\n      /**\n       * @description scroll vertically to position y\n       */\n      scrollToTop,\n      /**\n       * @description scroll to a given row\n       * @params row {Number} which row to scroll to\n       * @params strategy {ScrollStrategy} use what strategy to scroll to\n       */\n      scrollToRow,\n      /**\n       * @description reset rendered state after row index\n       */\n      resetAfterRowIndex,\n    })\n\n    const getColumnWidth = () => props.bodyWidth\n\n    return () => {\n      const {\n        cache,\n        columns,\n        data,\n        fixedData,\n        useIsScrolling,\n        scrollbarAlwaysOn,\n        scrollbarEndGap,\n        scrollbarStartGap,\n        style,\n        rowHeight,\n        bodyWidth,\n        estimatedRowHeight,\n        headerWidth,\n        height,\n        width,\n\n        getRowHeight,\n        onScroll,\n      } = props\n\n      const isDynamicRowEnabled = isNumber(estimatedRowHeight)\n      const Grid = isDynamicRowEnabled ? DynamicSizeGrid : FixedSizeGrid\n      const _headerHeight = unref(headerHeight)\n\n      return (\n        <div role=\"table\" class={[ns.e('table'), props.class]} style={style}>\n          <Grid\n            ref={bodyRef}\n            // special attrs\n            data={data}\n            useIsScrolling={useIsScrolling}\n            itemKey={itemKey}\n            // column attrs\n            columnCache={0}\n            columnWidth={isDynamicRowEnabled ? getColumnWidth : bodyWidth}\n            totalColumn={1}\n            // row attrs\n            totalRow={data.length}\n            rowCache={cache}\n            rowHeight={isDynamicRowEnabled ? getRowHeight : rowHeight}\n            // DOM attrs\n            width={width}\n            height={unref(gridHeight)}\n            class={ns.e('body')}\n            role=\"rowgroup\"\n            scrollbarStartGap={scrollbarStartGap}\n            scrollbarEndGap={scrollbarEndGap}\n            scrollbarAlwaysOn={scrollbarAlwaysOn}\n            // handlers\n            onScroll={onScroll}\n            onItemRendered={onItemRendered}\n            perfMode={false}\n          >\n            {{\n              default: (params: GridDefaultSlotParams) => {\n                const rowData = data[params.rowIndex]\n                return slots.row?.({\n                  ...params,\n                  columns,\n                  rowData,\n                })\n              },\n            }}\n          </Grid>\n          {unref(hasHeader) && (\n            <Header\n              ref={headerRef}\n              class={ns.e('header-wrapper')}\n              columns={columns}\n              headerData={data}\n              headerHeight={props.headerHeight}\n              fixedHeaderData={fixedData}\n              rowWidth={headerWidth}\n              rowHeight={rowHeight}\n              width={width}\n              height={Math.min(_headerHeight + unref(fixedRowHeight), height)}\n            >\n              {{\n                dynamic: slots.header,\n                fixed: slots.row,\n              }}\n            </Header>\n          )}\n        </div>\n      )\n    }\n  },\n})\n\nexport default TableGrid\n\nexport type TableGridRowSlotParams = {\n  columns: TableV2GridProps['columns']\n  rowData: any\n} & GridDefaultSlotParams\n\nexport type TableGridInstance = InstanceType<typeof TableGrid> &\n  UnwrapRef<{\n    forceUpdate: () => void\n    /**\n     * @description fetch total height\n     */\n    totalHeight: number\n\n    /**\n     * @description scrollTo a position\n     * @param { number | ScrollToOptions } arg1\n     * @param { number } arg2\n     */\n    scrollTo(leftOrOptions: number | GridScrollOptions, top?: number): void\n\n    /**\n     * @description scroll vertically to position y\n     */\n    scrollToTop(scrollTop: number): void\n    /**\n     * @description scroll to a given row\n     * @params row {Number} which row to scroll to\n     * @params @optional strategy {ScrollStrategy} use what strategy to scroll to\n     */\n    scrollToRow(row: number, strategy: ScrollStrategy): void\n    /**\n     * @description reset rendered state after row index\n     * @param { number } rowIndex\n     * @param { boolean } forceUpdate\n     */\n    resetAfterRowIndex: ResetAfterIndex\n  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