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usePagination.js
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Sat, Jul 12, 10:19

usePagination.js
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import _extends from "@babel/runtime/helpers/esm/extends";
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import { unstable_useControlled as useControlled } from '@mui/utils';
export default function usePagination() {
var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
// keep default values in sync with @default tags in Pagination.propTypes
var _props$boundaryCount = props.boundaryCount,
boundaryCount = _props$boundaryCount === void 0 ? 1 : _props$boundaryCount,
_props$componentName = props.componentName,
componentName = _props$componentName === void 0 ? 'usePagination' : _props$componentName,
_props$count = props.count,
count = _props$count === void 0 ? 1 : _props$count,
_props$defaultPage = props.defaultPage,
defaultPage = _props$defaultPage === void 0 ? 1 : _props$defaultPage,
_props$disabled = props.disabled,
disabled = _props$disabled === void 0 ? false : _props$disabled,
_props$hideNextButton = props.hideNextButton,
hideNextButton = _props$hideNextButton === void 0 ? false : _props$hideNextButton,
_props$hidePrevButton = props.hidePrevButton,
hidePrevButton = _props$hidePrevButton === void 0 ? false : _props$hidePrevButton,
handleChange = props.onChange,
pageProp = props.page,
_props$showFirstButto = props.showFirstButton,
showFirstButton = _props$showFirstButto === void 0 ? false : _props$showFirstButto,
_props$showLastButton = props.showLastButton,
showLastButton = _props$showLastButton === void 0 ? false : _props$showLastButton,
_props$siblingCount = props.siblingCount,
siblingCount = _props$siblingCount === void 0 ? 1 : _props$siblingCount,
other = _objectWithoutProperties(props, ["boundaryCount", "componentName", "count", "defaultPage", "disabled", "hideNextButton", "hidePrevButton", "onChange", "page", "showFirstButton", "showLastButton", "siblingCount"]);
var _useControlled = useControlled({
controlled: pageProp,
default: defaultPage,
name: componentName,
state: 'page'
}),
_useControlled2 = _slicedToArray(_useControlled, 2),
page = _useControlled2[0],
setPageState = _useControlled2[1];
var handleClick = function handleClick(event, value) {
if (!pageProp) {
setPageState(value);
}
if (handleChange) {
handleChange(event, value);
}
};
// https://dev.to/namirsab/comment/2050
var range = function range(start, end) {
var length = end - start + 1;
return Array.from({
length: length
}, function (_, i) {
return start + i;
});
};
var startPages = range(1, Math.min(boundaryCount, count));
var endPages = range(Math.max(count - boundaryCount + 1, boundaryCount + 1), count);
var siblingsStart = Math.max(Math.min(
// Natural start
page - siblingCount,
// Lower boundary when page is high
count - boundaryCount - siblingCount * 2 - 1),
// Greater than startPages
boundaryCount + 2);
var siblingsEnd = Math.min(Math.max(
// Natural end
page + siblingCount,
// Upper boundary when page is low
boundaryCount + siblingCount * 2 + 2),
// Less than endPages
endPages.length > 0 ? endPages[0] - 2 : count - 1);
// Basic list of items to render
// e.g. itemList = ['first', 'previous', 1, 'ellipsis', 4, 5, 6, 'ellipsis', 10, 'next', 'last']
var itemList = [].concat(_toConsumableArray(showFirstButton ? ['first'] : []), _toConsumableArray(hidePrevButton ? [] : ['previous']), _toConsumableArray(startPages), _toConsumableArray(siblingsStart > boundaryCount + 2 ? ['start-ellipsis'] : boundaryCount + 1 < count - boundaryCount ? [boundaryCount + 1] : []), _toConsumableArray(range(siblingsStart, siblingsEnd)), _toConsumableArray(siblingsEnd < count - boundaryCount - 1 ? ['end-ellipsis'] : count - boundaryCount > boundaryCount ? [count - boundaryCount] : []), _toConsumableArray(endPages), _toConsumableArray(hideNextButton ? [] : ['next']), _toConsumableArray(showLastButton ? ['last'] : []));
// Map the button type to its page number
var buttonPage = function buttonPage(type) {
switch (type) {
case 'first':
return 1;
case 'previous':
return page - 1;
case 'next':
return page + 1;
case 'last':
return count;
default:
return null;
}
};
// Convert the basic item list to PaginationItem props objects
var items = itemList.map(function (item) {
return typeof item === 'number' ? {
onClick: function onClick(event) {
handleClick(event, item);
},
type: 'page',
page: item,
selected: item === page,
disabled: disabled,
'aria-current': item === page ? 'true' : undefined
} : {
onClick: function onClick(event) {
handleClick(event, buttonPage(item));
},
type: item,
page: buttonPage(item),
selected: false,
disabled: disabled || item.indexOf('ellipsis') === -1 && (item === 'next' || item === 'last' ? page >= count : page <= 1)
};
});
return _extends({
items: items
}, other);
}

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