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- <?php
- /**
- * @file
- * Field formatters for Views RSS: Core Elements module.
- */
- /**
- * Implements hook_field_formatter_info().
- */
- function views_rss_core_field_formatter_info() {
- $formatters = array(
- 'enclosure' => array(
- 'label' => t('RSS <enclosure> element'),
- 'field types' => array('file', 'media', 'image', 'text', 'link_field'),
- ),
- );
- return $formatters;
- }
- /**
- * Implements hook_field_formatter_settings_form().
- */
- function views_rss_core_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
- $display = $instance['display'][$view_mode];
- $settings = $display['settings'];
- $element = NULL;
- if ($field['type'] == 'image') {
- $image_styles = image_style_options(FALSE);
- $element['image_style'] = array(
- '#title' => t('Image style'),
- '#type' => 'select',
- '#default_value' => $settings['image_style'],
- '#empty_option' => t('None (original image)'),
- '#options' => $image_styles,
- );
- }
- return $element;
- }
- /**
- * Implements hook_field_formatter_settings_summary().
- */
- function views_rss_core_field_formatter_settings_summary($field, $instance, $view_mode) {
- $display = $instance['display'][$view_mode];
- $settings = $display['settings'];
- $summary = array();
- if ($field['type'] == 'image') {
- $image_styles = image_style_options(FALSE);
- // Unset possible 'No defined styles' option.
- unset($image_styles['']);
- // Styles could be lost because of enabled/disabled modules that defines
- // their styles in code.
- if (!empty($settings['image_style']) && !empty($image_styles[$settings['image_style']])) {
- $summary[] = t('Image style: @style', array('@style' => $image_styles[$settings['image_style']]));
- }
- else {
- $summary[] = t('Original image');
- }
- }
- return implode('<br />', $summary);
- }
- /**
- * Implements hook_field_formatter_view().
- *
- * This is a dirty trick here. Essentially, we do not want to call a theme
- * function from here, as it should be called from within a view (amongst
- * other to have $view object in $variables). Therefore here we want to
- * return value only, hence use of array('#markup' => $value). However,
- * in some cases it won't be just a simple string value to return,
- * sometimes we'd want to return an array (for example value with
- * additional arguments) - hence the need to serialize it (plus add
- * "serialized" string at the beginning so that our field preprocess
- * function template_preprocess_views_view_views_rss_field() is able
- * to recognize it as serialized array and treat accordingly.
- *
- * Any better ideas?
- */
- function views_rss_core_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
- $element = NULL;
- foreach ($items as $delta => $item) {
- // Inside a view item may contain NULL data. In that case, just return.
- if (
- ($field['type'] == 'file' || $field['type'] == 'image') && empty($item['fid'])
- || $field['type'] == 'media' && empty($item['file']->fid)
- || $field['type'] == 'text' && empty($item['safe_value'])
- || $field['type'] == 'link_field' && empty($item['url'])
- ) {
- unset($items[$delta]);
- continue;
- }
- // Get full image URL based on provided image style.
- if ($field['type'] == 'image' && !empty($display['settings']['image_style']) && $image_style = image_style_load($display['settings']['image_style'])) {
- $uri = image_style_url($display['settings']['image_style'], $item['uri']);
- // Get file size of image preset file (if it has already been created,
- // otherwise just create it first and then get file size).
- $path = image_style_path($display['settings']['image_style'], $item['uri']);
- if (file_exists($path) || image_style_create_derivative($image_style, $item['uri'], $path)) {
- $item['filesize'] = filesize($path);
- }
- }
- elseif ($field['type'] == 'media') {
- $uri = file_create_url($item['file']->uri);
- $item['filesize'] = $item['file']->filesize;
- $item['filemime'] = $item['file']->filemime;
- }
- elseif ($field['type'] == 'text' || $field['type'] == 'link_field') {
- $uri = ($field['type'] == 'text') ? $item['safe_value'] : $item['url'];
- // Great idea to use get_headers() here by Dan Feidt,
- // http://drupal.org/user/60005 Thanks Dan!
- $headers = get_headers($uri, $format = 1);
- $item['filesize'] = $headers['Content-Length'];
- $item['filemime'] = $headers['Content-Type'];
- }
- else {
- $uri = file_create_url($item['uri']);
- }
- // XML element array in format_xml_elements() format.
- $rss_element = array(
- 'key' => 'enclosure',
- 'attributes' => array(
- 'url' => $uri,
- 'length' => $item['filesize'],
- 'type' => $item['filemime'],
- ),
- );
- $element[$delta] = array(
- '#item' => $item,
- '#markup' => format_xml_elements(array($rss_element)),
- '#rss_element' => $rss_element,
- );
- }
- return $element;
- }
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