shrinktheweb_field.module

<?php
// $Id$

/**
 * @file
 * shrinktheweb Field allows links to web pages to be displayed as thumbnails
 *
 */

/**
 * Implements hook_menu()
 *
 */
function shrinktheweb_field_menu() {
  $items['admin/settings/shrinktheweb'] = array(
    'title' => 'ShrinkTheWeb Account',
    'description' => 'Details of your shrinktheweb Account.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('shrinktheweb_field_admin_settings'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
  );
  return $items;
}

/**
 * Our admin form
 *
 */
function shrinktheweb_field_admin_settings() {
  $form['shrinktheweb_account_code'] = array(
    '#type' => 'textfield',
    '#title' => t('Your public access key'),
    '#description' => t('The access key given to you by <a href="http://shrinktheweb.com">shrinktheweb.com</a> for access to web thumbnails.'),
    '#default_value' => variable_get('shrinktheweb_account_code', ''),
  );
  $form['shrinktheweb_account_secret_code'] = array(
    '#type' => 'textfield',
    '#title' => t('Your secret access key'),
    '#description' => t('The secret key given to you by <a href="http://shrinktheweb.com">shrinktheweb.com</a> for access to web thumbnails.'),
    '#default_value' => variable_get('shrinktheweb_account_secret_code', ''),
  );
  return system_settings_form($form);
}

/**
 * Declare our theme functions
 *
 */
function shrinktheweb_field_theme() {
  $theme = array(
    'shrinktheweb_field_formatter_micro' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
    'shrinktheweb_field_formatter_tiny' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
    'shrinktheweb_field_formatter_verysmall' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
    'shrinktheweb_field_formatter_small' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
    'shrinktheweb_field_formatter_large' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
    'shrinktheweb_field_formatter_xtralarge' => array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_shrinktheweb_field_formatter',
    ),
  );
  return $theme;
}

/**
 * Declare our formatters
 *
 */
function shrinktheweb_field_field_formatter_info() {
  $formatters = array();
  $formatters['micro'] = array(
    'label' => t('shrinktheweb micro image'),
    'field types' => array('link'),
  );
  $formatters['tiny'] = array(
    'label' => t('shrinktheweb tiny image'),
    'field types' => array('link'),
  );
  $formatters['verysmall'] = array(
    'label' => t('shrinktheweb very small image'),
    'field types' => array('link'),
  );
  $formatters['small'] = array(
    'label' => t('shrinktheweb small image'),
    'field types' => array('link'),
  );
  $formatters['large'] = array(
    'label' => t('shrinktheweb large image'),
    'field types' => array('link'),
  );
  $formatters['xtralarge'] = array(
    'label' => t('shrinktheweb xtralarge image'),
    'field types' => array('link'),
  );
  return $formatters;
}

/**
 * Themeable function for field output
 *
 */
function theme_shrinktheweb_field_formatter($element) {
  if ($element['#item']['url']) {
    return shrinktheweb_field_field_formatter($element['#field_name'], $element['#item'], $element['#formatter'], $element['#item']['url'], $element['#node']->title);
  }
}

/**
 * Implementation of hook_field_formatter().
 */
function shrinktheweb_field_field_formatter($field, $item, $formatter, $url, $title) {
  switch ($formatter) {
    default:
    case 'micro':
      $size = 'mcr';
      $width = 75;
      $height = 56;
      break;
    case 'tiny':
      $size = 'tiny';
      $width = 200;
      $height = 150;
      break;
    case 'verysmall':
      $size = 'vsm';
      $width = 100;
      $height = 75;
      break;
    case 'small':
      $size = 'sm';
      $width = 120;
      $height = 90;
      break;
    case 'large':
      $size = 'lg';
      $width = 200;
      $height = 150;
      break;
    case 'xtralarge':
      $size = 'xlg';
      $width = 320;
      $height = 240;
      break;
  }
  if (variable_get('shrinktheweb_account_code', '')) {
    $shrinktheweb_url = 'http://images.shrinktheweb.com/xino.php?embed=1' .
                        // '&stwu=' variable_get('shrinktheweb_account_secret_code', '') . 
                        '&stwaccesskeyid='. variable_get('shrinktheweb_account_code', '') . 
                        '&stwsize='. $size .'&stwurl='. _shrinktheweb_format_url($url);

    $image = theme('image', $shrinktheweb_url, $title, $title, array('height' => $height, 'width' => $width), FALSE);
    return l($image, $url, array('html' => TRUE, 'attributes' => $item['attributes']));
  }
}

function _shrinktheweb_format_url($url) {
  $parsed = parse_url($url);
  return $parsed['host'];
}