Example of some recent work

media block

/**
 * Block call back for a media block.
 */
function example_block_media($entity = NULL, $child_title = NULL) {
  $block = array();
  $wrapper = empty($entity) ? entity_metadata_wrapper('node', menu_get_object()) : $entity;

  if ($wrapper->type->value() == 'parent' || $wrapper->type->value() == 'child') {
    if ($value = $wrapper->field_video_embed_code->value(array(
      'sanitize' => TRUE
    ))) {
      $block['content'] = theme('example_brightcove', array(
        '@videoPlayer' => $value[0],
        'videoID' => '1234567910',
        'attributes' => array(
          'class' => 'example-media',
        ),
      ));
    }
    elseif ($value = $wrapper->field_flickr->value(array(
      'sanitize' => TRUE
    ))) {
      $block['content'] = theme('example_flickr_set_slideshow', array(
        'set_id' => $value,
        'attributes' => array(
          'class' => 'example-media',
        ),
      ));
    }
    elseif ($wrapper->field_files->value()) {
      $description = $wrapper->field_files[0]->description->value() !== '' ? $wrapper->field_files[0]->description->value()
          : $description = $wrapper->title->value();

      // If we call recursively, and no description is set, then use the title of the child
      if (isset($child_title) && $wrapper->field_files[0]->description->value() == '') {
        $description = $child_title;
      }

      $description = filter_xss($description);

      $block['content'] = theme('image', array(
        'path' => $wrapper->field_files[0]->file->url->value(),
        'alt' => $description,
        'title' => $description,
        'width' => '300px',
        'height' => '220px',
        'attributes' => array(
          'class' => 'example-media',
        ),
      ));
    }
    elseif ($wrapper->type->value() == 'child') {
      // Pass in the title of the service detail node to use as the title/alt
      // text of the image (in case one wasn't set).
      // field_parent_node_ref is a required field on child content type.
      $block = example_block_media($wrapper->field_parent_node_ref, $wrapper->title->value());
    }
  }
  return $block;
}

/**
 * Implements hook_theme().
 */
function example_theme() {
  return array(
    'example_brightcove' => array(
      'variables' => array(
        'height',
        'width',
        'playerID',
        '@videoPlayer',
        'attributes'
      ),
    ),
    'example_flickr_set_slideshow' => array(
      'variables' => array(
        'set_id',
        'attributes'
      ),
    ),
  );
}

/**
 * Theme callback for brightcove videos
 */
function theme_example_brightcove($variables) {
  $attributes = $variables['attributes'];

  $parameters = array(
    'bgcolor' => '#FFFFFF',
    'width' => '300',
    'height' => '217',
    'playerID' => '10987654321',
    'playerKey' => 'AQ~~,AAAAwXeOQqE~,AGDFDSHafasseDGDdsaase',
    'isVid' => 'true',
    'dynamicStreaming' => 'true',
    'wmode' => 'transparent',
    '@videoPlayer' => '',
  );

  if (isset($variables['width'])) {
    $parameters['width'] = $variables['width'];
  }
  if (isset($variables['height'])) {
    $parameters['height'] = $variables['height'];
  }
  if (isset($variables['playerID'])) {
    $parameters['playerID'] = $variables['playerID'];
  }
  if (isset($variables['@videoPlayer'])) {
    $parameters['@videoPlayer'] = $variables['@videoPlayer'];
  }

  $parameter_html = '';
  foreach ($parameters as $key => $value) {
    $parameter_html .= "\t<param name='" . $key . "' value='" . $value . "' />" . PHP_EOL;
  }

  $output = '<div' . drupal_attributes($attributes) . ' style="display:none"></div>' . PHP_EOL;
  $output .= '<object class="BrightcoveExperience" id="';
  $output .= drupal_html_id('myExperience') . '">' . PHP_EOL . $parameter_html . '</object>' . PHP_EOL;
  $output .= '<script type="text/javascript" src="http://admin.brightcove.com/js/BrightcoveExperiences.js"></script>'
      . PHP_EOL;
  $output .= '<script type="text/javascript">brightcove.createExperiences();</script>';

  return $output;
}

/**
 * Theme callback for rendering a flickr slideshow.
 */
function theme_exampleflickr_set_slideshow($variables) {

  $attributes = $variables['attributes'];

  $output = "<div" . drupal_attributes($attributes) . " >" . PHP_EOL;
  $output .= "<iframe align='center' src='http://www.flickr.com/slideShow/index.gne?set_id=";
  $output .= $variables['set_id'];
  $output .= "' frameBorder='0' width='300' height='220' scrolling='no'></iframe>" . PHP_EOL;
  $output .= "</div>";

  return $output;
}