Club Drupal

<?php

/**

 * @file

 * Theming functions for the flexslider module.

 *

 * Preprocessor functions fill variables for templates and helper

 * functions to make theming easier.

 */

/**

 * Default theme implementation for flexslider_list

 */

function theme_flexslider_list(&$variables) {

  // Reference configuration variables

  $optionset = &$variables['settings']['optionset'];

  $items = &$variables['items'];

  $attributes = &$variables['settings']['attributes'];

  $type = &$variables['settings']['type'];

  $output = '';

  // Build the list

  if (!empty($items)) {

    $output .= "<$type" . drupal_attributes($attributes) . '>';

    foreach ($items as $item) {

      $caption = '';

      if (!empty($item['caption'])) {

        $caption = $item['caption'];

      }

      $output .= theme('flexslider_list_item', array(

        'item' => $item['slide'],

        'settings' => array(

          'optionset' => $optionset,

        ),

        'caption' => $caption,

      ));

    }

    $output .= "</$type>";

  }

  return $output;

}

/**

 * Default theme implementation for flexslider_list_item

 */

function theme_flexslider_list_item(&$variables) {

  return '<li' . drupal_attributes($variables['settings']['attributes']) . '>' . $variables['item'] . $variables['caption'] . "</li>\n";

}

/**

 * Prepares variables for flexslider templates.

 *

 * @see flexslider.tpl.php.

 */

function template_process_flexslider(&$variables) {

  // Reference configuration variables

  $optionset = &$variables['settings']['optionset'];

  $settings = &$variables['settings'];

  $items = &$variables['items'];

  // Set the default container type

  if (empty($settings['type'])) {

    $settings['type'] = 'ul';

  }

  // Load the selected optionset

  if (!empty($optionset)) {

    $optionset = flexslider_optionset_load($optionset);

  }

  // Check if an optionset was loaded

  if (empty($optionset)) {

    // Fall back to 'default' option set

    $optionset = flexslider_optionset_load('default');

    watchdog('flexslider', 'Fallback to default optionset.', array(), WATCHDOG_WARNING);

  }

  // Configure attributes for containing elements

  $attributes = array();

  // Merge with defined attributes

  if (isset($settings['attributes']) and is_array($settings['attributes'])) {

    $attributes += $settings['attributes'];

  }

  // Set the ID for each flexslider instance if none is provided

  if (empty($attributes['id'])) {

    $flexslider_id = &drupal_static('flexslider_id', 0);

    $attributes['id'] = 'flexslider-' . ++$flexslider_id;

  }

  // Add the namespace to any classes

  // @todo figure out what this is supposed to do

  if (!empty($attributes['class']) && !empty($optionset->options['namespace'])) {

    foreach ($attributes['class'] as $key => $value) {

      $attributes['class'][$key] = $optionset->options['namespace'] . $value;

    }

  }

  // Add the flexslider class to be namespaced

  $attributes['class'][] = 'flexslider';

  // Add the optionset name as a class to the container.

  $attributes['class'][] = 'optionset-' . drupal_html_class($optionset->name);

  // Add the image style name as a class to the container.

  if (!empty($settings['image_style'])) {

    $attributes['class'][] = 'imagestyle-' . drupal_html_class($settings['image_style']);

  }

  // Add the attributes to the settings array.

  $settings['attributes'] = $attributes;

  // Finally, add the configuration to the page

  flexslider_add($variables['settings']['attributes']['id'], $variables['settings']['optionset']);

}

/**

 * Prepares variables for flexslider list templates.

 *

 * @see flexslider-list.tpl.php.

 */

function template_process_flexslider_list(&$variables) {

  // Reset the list of attributes

  $variables['settings']['attributes'] = array(

    // @todo find a way to detect the outter container class if possible

    'class' => array('slides'),

  );

}

/**

 * Prepares variables for flexslider list item templates.

 *

 * @see flexslider-list-item.tpl.php.

 */

function template_process_flexslider_list_item(&$variables) {

  // Reset the list of attributes

  $variables['settings']['attributes'] = array();

  // Reference configuration variables

  $item = &$variables['item'];

  $settings = &$variables['settings'];

  $caption = &$variables['caption'];

  $attributes = &$variables['settings']['attributes'];

  // Generated thumbnail support

  if (isset($settings['optionset']->options['controlNav']) and $settings['optionset']->options['controlNav'] === "thumbnails") {

    // If the thumbnails are enabled in the option set, scan for the first img

    // tag and extract the src attribute to set as the thumbnail data

    $src = array();

    preg_match("/<img.+?src=[\"'](.+?)[\"'].+?>/", $item, $src);

    if (!empty($src[1])) {

      $attributes['data-thumb'] = $src[1];

    }

    // Let's also get the alt attribute to apply to thumbnails.

    // This only works in library version 2.6+.

    $alt = array();

    preg_match("/<img.+?alt=[\"'](.*?)[\"'].+?>/", $item, $alt);

    if (!empty($alt)) {

      $attributes['data-thumb-alt'] = $alt[1];

    }

  }

  if (isset($settings['optionset']->options['thumbCaptions']) and $settings['optionset']->options['thumbCaptions'] and !empty($caption)) {

    $attributes['data-thumbcaption'] = $caption;

    // Prevent captions from appearing in the slider as well

    if (isset($settings['optionset']->options['thumbCaptionsBoth']) and FALSE === $settings['optionset']->options['thumbCaptionsBoth']) {

      $caption = '';

    }

  }

  if (!empty($caption)) {

    $caption = '<div class="flex-caption">' . $caption . '</div>';

  }

}