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   1  <?php
   2  
   3  /**
   4   *  @file
   5   *  Theme & preprocess functions for the Views Slideshow: Imageflow module.
   6   */
   7  
   8  /**
   9   *  We'll grab only the first image from each row.
  10   */
  11  function template_preprocess_views_slideshow_imageflow(&$vars) {
  12    // Initialize our $images array.
  13    $vars['images'] = array();
  14  
  15    // Strip all images from the $rows created by the original view query.
  16    foreach($vars['rows'] as $item) {
  17      preg_match('@(<\s*img\s+[^>]*>)@i', $item, $matches);
  18      if ($image = $matches[1]) {
  19        // We need to add a URL to 'longdesc', as required by the plugin.
  20        // If our image is in an anchor tag, use its URL.
  21        preg_match('@<\s*a\s+href\s*=\s*"\s*([^"]+)\s*"[^>]*>[^<]*'. preg_quote($image) .'[^<]*<\s*/a\s*>@i', $item, $urls);
  22        if (!($url = $urls[1])) {
  23          // Otherwise link to the original image.
  24          preg_match('@src\s*=\s*"([^"]+)"@i', $image, $urls);
  25          if (!($url = $urls[1])) {
  26            // If we get this far, there are probably more serious problems.
  27            // But for now, we'll go to the front page instead.
  28            $url = url('<front>');
  29          }
  30        }
  31  
  32        // Add the URL to the image's longdesc tag.
  33        $image = preg_replace('@img\s+@i', 'img longdesc="'. $url .'" ', $image);
  34  
  35        // Add the image to our image array to display.
  36        $vars['images'][] = $image;
  37      }
  38    }
  39  
  40    // Find the path to our plugin.
  41    $path = views_slideshow_imageflow_path();
  42  
  43    // Add the required JS and CSS.
  44    $packed = views_slideshow_imageflow_variable_get('packed') ? '.packed' : '';
  45    drupal_add_js($path .'/imageflow'. $packed .'.js');
  46  
  47    // Only include the CSS if we're supposed to.
  48    // @see issue at http://drupal.org/node/769968.
  49    if (views_slideshow_imageflow_variable_get('include_css')) {
  50      drupal_add_css($path .'/imageflow'. $packed .'.css');
  51    }
  52  
  53    $drupal_path = drupal_get_path('module', 'views_slideshow_imageflow') . '/themes';
  54    drupal_add_js($drupal_path .'/js/views_slideshow_imageflow.js');
  55  
  56    $view = $vars['view'];
  57    $rows = $vars['rows'];
  58    $options = $vars['options'];
  59    switch ($options['views_slideshow_imageflow']['start']) {
  60      case 'start':
  61        $start = 1;
  62        break;
  63      case 'end':
  64        $start = sizeof($rows);
  65        break;
  66      case 'middle':
  67        $start = ceil(sizeof($rows) / 2);
  68        break;
  69      case 'random':
  70        $start = rand(1, sizeof($rows));
  71        break;
  72    }
  73  
  74    // Deal with views created before various options were available:
  75    // @TODO: Do this in an update function instead?
  76    $options['views_slideshow_imageflow']['captions'] = isset($options['views_slideshow_imageflow']['captions']) ? $options['views_slideshow_imageflow']['captions'] : TRUE;
  77    $options['views_slideshow_imageflow']['imageFocusM'] = isset($options['views_slideshow_imageflow']['imageFocusM']) ? $options['views_slideshow_imageflow']['imageFocusM'] : 1.0;
  78    $options['views_slideshow_imageflow']['scrollbarP'] = isset($options['views_slideshow_imageflow']['scrollbarP']) ? $options['views_slideshow_imageflow']['scrollbarP'] : 0.6;
  79    $options['views_slideshow_imageflow']['imageFocusMax'] = isset($options['views_slideshow_imageflow']['imageFocusMax']) ? $options['views_slideshow_imageflow']['imageFocusMax'] : 4;
  80    $settings = array(
  81      'aspectRatio' => $options['views_slideshow_imageflow']['aspect_ratio'],
  82      'imagesHeight' => $options['views_slideshow_imageflow']['images_height'],
  83      'imageCursor' => $options['views_slideshow_imageflow']['image_cursor'],
  84      'sliderCursor' => $options['views_slideshow_imageflow']['slider_cursor'],
  85      'startID' => $start,
  86      'slider' => $options['views_slideshow_imageflow']['slider'],
  87      'captions' => $options['views_slideshow_imageflow']['captions'],
  88      'imageFocusM' => $options['views_slideshow_imageflow']['imageFocusM'],
  89      'scrollbarP' => $options['views_slideshow_imageflow']['scrollbarP'],
  90      'imageFocusMax' => $options['views_slideshow_imageflow']['imageFocusMax'],
  91      'onClick' => $options['views_slideshow_imageflow']['onClick'],
  92    );
  93    drupal_add_js(array('viewsSlideshowImageFlow' => array('views-slideshow-imageflow-images-'. $vars['id'] => $settings)), 'setting');
  94  }