PrincePDF.php in Forena Reports 8
PrincePDF
Implements Prince PDF Generation
Namespace
Drupal\forena_pdf\FrxPlugin\DocumentFile
forena_pdf/src/FrxPlugin/Document/PrincePDF.phpView source
<?php
/**
* @file PrincePDF
*
* Implements Prince PDF Generation
*/
namespace Drupal\forena_pdf\FrxPlugin\Document;
use Drupal\forena\FrxAPI;
use Drupal\forena\FrxPlugin\Document\DocumentBase;
/**
* Provides PDF file exports using Prince XML
*
* @FrxDocument(
* id= "pdf-prince",
* name="PDF Generation using Prince XML",
* ext="pdf"
* )
*/
class PrincePDF extends DocumentBase {
use FrxAPI;
private $p;
public function __construct() {
include_once 'libraries/prince/prince.php';
$this->content_type = 'application/pdf';
$prince_path = \Drupal::config('forena_pdf.settings')
->get('prince_path');
if (class_exists('\\Prince') && forena_library_file('prince')) {
$this->p = new \Prince($prince_path);
}
}
/**
* [@inheritdoc}
*/
public function flush() {
//@TODO: figure out how to deal with options
$options = [];
//@TODO: Figure out how to pass style portions of css doucments to the PDF.
$css = '';
$style_css = '';
$disable_links = \Drupal::config('forena_pdf.settings')
->get('disable_links');
$html = $this->write_buffer;
if ($disable_links) {
$html = preg_replace('/<a href=\\"(.*?)\\">(.*?)<\\/a>/', "\\2", $html);
}
$link_class = $disable_links ? 'prince-disable-links' : '';
$output = '<html><head>';
$output .= '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>';
if (!empty($options['css']) || isset($r->rpt_xml->head->style)) {
$output .= '<style type="text/css">';
$output .= $css;
if ($style_css) {
$sheet = (string) $r->rpt_xml->head->style;
$output .= $sheet;
}
$output .= '</style>';
}
$output .= '<title>' . $this->title . "</title></head><body class='forena-report {$link_class}'><h1>" . $this->title . '</h1>' . $html . '</body></html>';
$prince_css = drupal_get_path('module', 'forena_pdf') . '/forena_pdf_prince.css';
// Generate the document
if ($this->p) {
$p = $this->p;
foreach ($this
->documentManager()->stylesheets as $type => $sheets) {
foreach ($sheets as $sheet) {
switch ($type) {
case 'all':
case 'print':
case 'screen':
case 'pdf':
$p
->addStyleSheet($sheet);
break;
}
}
}
$msg = array();
$pdf_file = tempnam(file_directory_temp(), 'prince_pdf');
if ($p
->convert_string_to_file($output, $pdf_file, $msg)) {
$output = file_get_contents($pdf_file);
}
else {
$this
->app()
->error('Could not generate PDF File', print_r($msg, 1));
$output = '';
}
// We don't care if this fails because it's temproary.
@unlink($pdf_file);
return $output;
}
else {
$this
->error(t('Prince XML Not Properly Installed'));
return '';
}
}
/**
* {@inheritdoc}
*/
public function header() {
$this->headers['Content-Type'] = $this->content_type;
$this->headers['Cache-Control'] = '';
$this->headers['Pragma'] = '';
$this->headers['Cache-Control'] = 'must-revalidate';
}
}