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ant-design-vue/components/table/hooks/usePagination.ts

108 lines
3.1 KiB

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