printfriendly.module in PrintFriendly & PDF 8

Adds PrintFriendly button to chosen node types and provides a block.

File

printfriendly.module

<?php

/**
 * @file
 * Adds PrintFriendly button to chosen node types and provides a block.
 */
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\printfriendly\Form\PrintfriendlyConfigForm;
use Drupal\Core\Url;
use Drupal\Core\Link;
use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\node\NodeInterface;
use Drupal\Core\Render\Markup;

/**
 * Implements hook_help().
 */
function printfriendly_help($route_name, \Drupal\Core\Routing\RouteMatchInterface $route_match) {
  switch ($route_name) {

    // Main module help for the block module.
    case 'help.page.printfriendly':
      return '<p>' . t('PrintFriendly module lets you include a link to let your site users to quickly print, email or download the page as a PDF file using printfriendly service. <a href="http://www.printfriendly.com">PrintFriendly.com</a>') . '</p>';
  }
}

/**
 * Attach PrintFriendly Script.
 *
 */
function printfriendly_page_attachments(array &$page) {
  $config = \Drupal::config('printfriendly.settings');
  $custom_js = "var pfHeaderImgUrl = '" . $config
    ->get('printfriendly_page_custom_header') . "';";
  $custom_js .= "var pfHeaderTagline = '" . $config
    ->get('printfriendly_tagline') . "';";
  $custom_js .= "var pfdisableClickToDel  = " . $config
    ->get('printfriendly_click_delete') . ";";
  $custom_js .= "var pfHideImages = " . $config
    ->get('printfriendly_images') . ";";
  $custom_js .= "var pfImageDisplayStyle = '" . $config
    ->get('printfriendly_image_style') . "';";
  $custom_js .= "var pfDisablePDF = " . $config
    ->get('printfriendly_pdf') . ";";
  $custom_js .= "var pfDisableEmail = " . $config
    ->get('printfriendly_email') . ";";
  $custom_js .= "var pfDisablePrint = " . $config
    ->get('printfriendly_print') . ";";
  $custom_js .= "var pfCustomCSS = '" . $config
    ->get('printfriendly_custom_css') . "';";
  $js = 'http://cdn.printfriendly.com/printfriendly.js';
  if ($config
    ->get('printfriendly_website_protocol') == 'https') {
    $js = 'https://pf-cdn.printfriendly.com/ssl/main.js';
  }
  $custom_js .= "(function(){var js, pf;pf = document.createElement('script');pf.type = 'text/javascript';";
  $custom_js .= "pf.src='" . $js . "';document.getElementsByTagName('head')[0].appendChild(pf)})();";
  $page['#attached']['html_head'][] = [
    [
      '#tag' => 'script',
      '#value' => $custom_js,
    ],
    'declare_printfriendly_inline',
  ];
}
function printfriendly_node_view(array &$build, NodeInterface $node, EntityViewDisplayInterface $display, $view_mode) {
  $config = \Drupal::config('printfriendly.settings');
  if (in_array($view_mode, array_filter($config
    ->get('printfriendly_display', array(
    'full',
  ))))) {
    if (in_array($node
      ->getType(), $config
      ->get('printfriendly_types', array()), TRUE) && \Drupal::currentUser()
      ->hasPermission('access printfriendly')) {
      if ($view_mode == 'teaser') {
        $block = printfriendly_create_button('/node/' . $node
          ->id(), FALSE);
      }
      else {
        $block = printfriendly_create_button();
      }
      $build['printfriendly'] = array(
        '#markup' => $block['#markup'],
        '#attributes' => array(
          'class' => array(
            'links',
            'inline',
            'printfriendly-node',
            $node
              ->getType(),
          ),
        ),
      );
    }
  }
}
function printfriendly_create_button($url = NULL, $popup = TRUE) {
  global $base_url;
  $config = \Drupal::config('printfriendly.settings');
  $current_path = \Drupal::service('path.current')
    ->getPath();
  $query_string = \Drupal::request()->query
    ->all();
  if (!$url) {
    $url = Url::fromURI($base_url . $current_path, array(
      'query' => $query_string,
    ));
    $full_path = $url
      ->toString();
  }
  else {
    $url = Url::fromURI($base_url . $url, array(
      'query' => $query_string,
    ));
    $full_path = $url
      ->toString();
  }
  $image = drupal_get_path('module', 'printfriendly') . '/images/' . $config
    ->get('printfriendly_image', 'button-print-grnw20.png');
  if ($popup) {
    return array(
      '#type' => 'link',
      '#markup' => Markup::create('<a href="http://www.printfriendly.com/print?url=' . $full_path . '" class="printfriendly" onclick="window.print(); return false;" title="Printer Friendly and PDF"><img src="' . file_create_url($image) . '" alt="Printer Friendly and PDF" /></a>'),
    );
  }
  else {
    return array(
      '#markup' => Markup::create('<a href="http://www.printfriendly.com/print?url=' . $full_path . '" class="printfriendly" title="Printer Friendly and PDF"><img src="' . file_create_url($image) . '" alt="Printer Friendly and PDF" /></a>'),
    );
  }
}

Functions

Name	Description
printfriendly_create_button
printfriendly_help	Implements hook_help().
printfriendly_node_view
printfriendly_page_attachments	Attach PrintFriendly Script.