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108 lines
3.1 KiB
108 lines
3.1 KiB
import useState from '../../_util/hooks/useState';
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import type { Ref } from 'vue';
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import { computed } from 'vue';
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import type { PaginationProps } from '../../pagination';
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import type { TablePaginationConfig } from '../interface';
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export const DEFAULT_PAGE_SIZE = 10;
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export function getPaginationParam(
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pagination: TablePaginationConfig | boolean | undefined,
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mergedPagination: TablePaginationConfig,
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) {
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const param: any = {
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current: mergedPagination.current,
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pageSize: mergedPagination.pageSize,
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};
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const paginationObj = pagination && typeof pagination === 'object' ? pagination : {};
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Object.keys(paginationObj).forEach(pageProp => {
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const value = (mergedPagination as any)[pageProp];
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if (typeof value !== 'function') {
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param[pageProp] = value;
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}
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});
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return param;
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}
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function extendsObject<T extends Object>(...list: T[]) {
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const result: T = {} as T;
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list.forEach(obj => {
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if (obj) {
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Object.keys(obj).forEach(key => {
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const val = (obj as any)[key];
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if (val !== undefined) {
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(result as any)[key] = val;
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}
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});
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}
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});
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return result;
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}
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export default function usePagination(
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totalRef: Ref<number>,
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paginationRef: Ref<TablePaginationConfig | false | undefined>,
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onChange: (current: number, pageSize: number) => void,
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): [Ref<TablePaginationConfig>, () => void] {
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const pagination = computed(() =>
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paginationRef.value && typeof paginationRef.value === 'object' ? paginationRef.value : {},
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);
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const paginationTotal = computed(() => pagination.value.total || 0);
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const [innerPagination, setInnerPagination] = useState<{
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current?: number;
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pageSize?: number;
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}>(() => ({
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current: 'defaultCurrent' in pagination.value ? pagination.value.defaultCurrent : 1,
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pageSize:
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'defaultPageSize' in pagination.value ? pagination.value.defaultPageSize : DEFAULT_PAGE_SIZE,
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}));
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// ============ Basic Pagination Config ============
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const mergedPagination = computed(() => {
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const mP = extendsObject<Partial<TablePaginationConfig>>(
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innerPagination.value,
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pagination.value,
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{
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total: paginationTotal.value > 0 ? paginationTotal.value : totalRef.value,
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},
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);
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// Reset `current` if data length or pageSize changed
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const maxPage = Math.ceil((paginationTotal.value || totalRef.value) / mP.pageSize!);
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if (mP.current! > maxPage) {
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// Prevent a maximum page count of 0
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mP.current = maxPage || 1;
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}
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return mP;
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});
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const refreshPagination = (current = 1, pageSize?: number) => {
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if (pagination.value === false) return;
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setInnerPagination({
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current,
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pageSize: pageSize || mergedPagination.value.pageSize,
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});
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};
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const onInternalChange: PaginationProps['onChange'] = (current, pageSize) => {
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if (pagination.value) {
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pagination.value.onChange?.(current, pageSize);
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}
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refreshPagination(current, pageSize);
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onChange(current, pageSize || mergedPagination.value.pageSize);
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};
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return [
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computed(() => {
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return pagination.value === false
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? {}
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: { ...mergedPagination.value, onChange: onInternalChange };
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}),
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refreshPagination,
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];
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}
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