DataTables > Buttons > PDF > Include links on export

gk-dt-buttons-pdf-links.js

document.addEventListener( 'DOMContentLoaded', function () {
	wp.hooks.addFilter( 'gk.datatables.options', 'dt-custom-code', function ( options ) {
		options.buttons = options.buttons.map( button => {
			if ( button.extend !== 'pdf' ) {
				return button;
			}

			const originalBodyFunction = button.exportOptions?.format?.body;

			button.exportOptions = button.exportOptions || {};

			button.exportOptions.format = button.exportOptions.format || {};

			button.exportOptions.format.body = function ( data, row, column, node ) {
				const output = originalBodyFunction ? originalBodyFunction( data, row, column, node ) : data;

				return data.startsWith( '<a' ) ? data : output;
			};

			button.customize = function ( doc ) {
				doc.content.forEach( item => {
					if ( !item.table ) {
						return;
					}

					item.table.body.forEach( row => {
						row.forEach( cell => {
							if ( typeof cell.text !== 'string' || !cell.text.startsWith( '<a' )  ) {
								return;
							}

							cell.text = {
								text: jQuery( cell.text ).text(),
								link: jQuery( cell.text ).attr( 'href' ),
								style: 'linkStyle'
							};
						} );
					} );
				} );

				doc.styles.linkStyle = {
					decoration: 'underline',
					color: 'blue'
				};
			};

			return button;
		} );

		return options;
	} );
} );