widget.module

<?php

/**
 * @file
 * Module file for the widget module.
 */
use Drupal\Component\Utility\Html;

/**
 * Implements hook_theme().
 */
function widget_theme() {
  return array(
    'widget_main_with_quicktabs' => array(
      'variables' => array('regions' => array()),
      'template' => 'widget-main-with-quicktabs',
    ),
    'widget_1col' => array(
      'variables' => array('regions' => array(), 'label' => NULL),
      'template' => 'widget-1col',
    ),
    'widget_2col' => array(
      'variables' => array('regions' => array(), 'label' => NULL),
      'template' => 'widget-2col',
    ),
    'widget_2col_2' => array(
      'variables' => array('regions' => array(), 'label' => NULL),
      'template' => 'widget-2col-2',
    ),
    'widget_2col_2_1' => array(
      'variables' => array('regions' => array(), 'label' => NULL),
      'template' => 'widget-2col-2-1',
    ),
    'widget_3col' => array(
      'variables' => array('regions' => array(), 'label' => NULL),
      'template' => 'widget-3col',
    ),
  );
}

/**
 * Prepares tabs data for the quicktab layout template.
 */
function widget_preprocess_widget_main_with_quicktabs(&$variables) {
  $variables['tabs'] = array();
  foreach ($variables['regions'] as $tab_id => $content) {
    // @todo this condition is not nice, instead it should be possible to have
    //   multiple blocks in one region.
    // Only add blocks that are in a "tab" region.
    if (strpos($tab_id, 'tab_')) {
      if (!empty($variables['regions'][$tab_id]['#blocks'])) {
        // Don't print the label as it's used as tab title label.
        $variables['regions'][$tab_id]['#blocks'][0]['#configuration']['label_display'] = FALSE;
        // Add data: label and content of each tab.
        $variables['tabs'][$tab_id] = array(
          'label' => $variables['regions'][$tab_id]['#blocks'][0]['#configuration']['label'],
          'content' => $variables['regions'][$tab_id]['#blocks'],
          // @todo would maybe make sense to make this configurable.
          'id' => 'widget-tab-' . Html::cleanCssIdentifier($tab_id),
        );

      }
    }
  }
  ksort($variables['tabs']);
}

/**
 * Alters label display for widget blocks with certain layouts.
 *
 * Moves the label into the links region or unsets that region if label display
 * is disabled.
 */
function widget_preprocess_block(&$variables) {
  if ($variables['plugin_id'] == 'widget_block' && in_array($variables['configuration']['layout'], array('widget_1col', 'widget_2col', 'widget_2col_2', 'widget_2col_2_1', 'widget_3col'))) {
    if ($variables['configuration']['label_display']) {
      $variables['content']['#label'] = isset($variables['elements']['content']['#regions']['main']['#blocks'][0]['content']['#widget_title']) ?
        $variables['elements']['content']['#regions']['main']['#blocks'][0]['content']['#widget_title'] :
        $variables['label'];
      $variables['label'] = NULL;
    }
    else {
      unset($variables['content']['#regions']['links']);
    }
    if(isset($variables['configuration']['classes'])) {
      $variables['classes'] = $variables['configuration']['classes'];
    }
  }
}