24 lines
839 B
TypeScript
24 lines
839 B
TypeScript
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import { Pipe, PipeTransform } from '@angular/core';
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@Pipe({
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standalone: true,
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name: 'calculatePageRange'
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})
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export class CalculatePageRangePipe implements PipeTransform {
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transform(totalPages: number, currentPage: number, totalPagesCount: number): number[] {
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const visiblePages = 10;
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let startPage = Math.max(currentPage - 5, 1);
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let endPage = Math.min(startPage + visiblePages - 1, totalPagesCount);
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// Adjust the start and end if near the beginning or end
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if (currentPage < 6) {
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endPage = Math.min(visiblePages, totalPagesCount);
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} else if (currentPage > totalPagesCount - 5) {
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startPage = Math.max(totalPagesCount - visiblePages + 1, 1);
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}
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// Generate the range of page numbers to display
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return Array.from({ length: (endPage - startPage) + 1 }, (_, i) => startPage + i);
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}
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}
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