exif_display.module in EXIF Custom 7

Primary hook implementations for the EXIF Display module.

File

exif_display/exif_display.module

<?php

/**
 * @file
 * Primary hook implementations for the EXIF Display module.
 */

/**
 * Implements hook_field_extra_fields().
 */
function exif_display_field_extra_fields() {
  $extra['file']['image']['form']['exif_display'] = array(
    'label' => t('EXIF Display'),
    'description' => t('A read-only display of all EXIF data available on this image.'),
    'weight' => 2,
  );
  return $extra;
}

/**
 * Implements hook_form_FORM_ID_alter() for file_entity_edit().
 */
function exif_display_form_file_entity_edit_alter(&$form, &$form_state, $form_id) {

  // If there's no file entity, just bail.
  if (empty($form['#entity'])) {
    return;
  }

  // Load the data.
  $data = exif_custom_get_exif_fields($form['#entity']->uri);

  // If any data was found, display it in a simple table.
  if (!empty($data)) {
    $form['exif_display'] = array(
      '#type' => 'table',
      '#caption' => t('Available meta data for this image'),
      '#header' => array(
        t('Meta data field'),
        t('Value'),
      ),
      '#rows' => array(),
      '#multiple' => FALSE,
      '#js_select' => FALSE,
      '#input' => FALSE,
      '#element_validate' => array(
        'exif_display_element_table_validate',
      ),
    );
    foreach ($data as $key => $val) {
      if (is_array($val)) {
        $val = implode(', ', $val);
      }
      $val = trim($val);
      if (!empty($val) && $val !== '') {
        $form['exif_display']['#rows'][] = array(
          check_plain($key),
          check_plain($val),
        );
      }
    }
  }
}

/**
 * Callback for the table display for when using the Element module.
 */
function exif_display_element_table_validate() {
  return TRUE;
}

Functions

Name	Description
exif_display_element_table_validate	Callback for the table display for when using the Element module.
exif_display_field_extra_fields	Implements hook_field_extra_fields().
exif_display_form_file_entity_edit_alter	Implements hook_form_FORM_ID_alter() for file_entity_edit().