63 lines
1.7 KiB
JavaScript
63 lines
1.7 KiB
JavaScript
/**
|
|
* Copyright (c) HashiCorp, Inc.
|
|
* SPDX-License-Identifier: MPL-2.0
|
|
*/
|
|
|
|
import Component from '@glimmer/component';
|
|
import { tracked } from '@glimmer/tracking';
|
|
import { action } from '@ember/object';
|
|
|
|
/**
|
|
* @module PaginationControls
|
|
* PaginationControls components are used to paginate through item lists
|
|
*
|
|
* @example
|
|
* ```js
|
|
* <PaginationControls @startPage={{1}} @total={{100}} @size={{15}} @onChange={{this.onPageChange}} />
|
|
* ```
|
|
* @param {number} total - total number of items
|
|
* @param {number} [startPage=1] - initial page number to select
|
|
* @param {number} [size=15] - number of items to display per page
|
|
* @param {function} onChange - callback fired on page change
|
|
*/
|
|
|
|
export default class PaginationControls extends Component {
|
|
@tracked page;
|
|
|
|
constructor() {
|
|
super(...arguments);
|
|
this.page = this.args.startPage || 1;
|
|
this.size = this.args.size || 15; // size selector may be added in future version
|
|
}
|
|
|
|
get totalPages() {
|
|
return Math.ceil(this.args.total / this.size);
|
|
}
|
|
get displayInfo() {
|
|
const { total } = this.args;
|
|
const end = this.page * this.size;
|
|
return `${end - this.size + 1}-${end > total ? total : end} of ${total}`;
|
|
}
|
|
get pages() {
|
|
// show 5 pages with 2 on either side of the current page
|
|
let start = this.page - 2 >= 1 ? this.page - 2 : 1;
|
|
const incrementer = start + 4;
|
|
const end = incrementer <= this.totalPages ? incrementer : this.totalPages;
|
|
const pageNumbers = [];
|
|
while (start <= end) {
|
|
pageNumbers.push(start);
|
|
start++;
|
|
}
|
|
return pageNumbers;
|
|
}
|
|
get hasMorePages() {
|
|
return this.pages.lastObject !== this.totalPages;
|
|
}
|
|
|
|
@action
|
|
changePage(page) {
|
|
this.page = page;
|
|
this.args.onChange(page);
|
|
}
|
|
}
|