<?php
// $Id: itweak_upload.module,v 1.2 2010-02-11 16:27:04 iva2k Exp $

/**
 * @file
 * iTweakUpload - Tweak file upload form.
 */

/**
 * Implementation of hook_init().
 */
function itweak_upload_init() {
  drupal_add_css(drupal_get_path('module', 'itweak_upload') . '/itweak_upload.css');
}

/**
 * Worker code for itweak_upload_form_alter().
 * Modify a bit the attachment fieldset, add js.
 */
function _itweak_upload_upload_form_alter(&$form, $form_state, $type) {
  drupal_add_js(drupal_get_path('module', 'itweak_upload') . '/itweak_upload.js');
  $form['attachments']['#collapsible'] = 0;	//FIXME: make configurable
  $form['attachments']['#collapsed'] = 0;	//FIXME: make configurable
  $form['attachments']['#title'] = t('Attach files to this @type', array('@type' => $type));
  global $user;
  $limits = _upload_file_limits($user);
  $form['attachments']['#description'] = ($limits['resolution'] ? t('Images are larger than %resolution will be resized. ', array('%resolution' => $limits['resolution'])) : '') . t('Files must be smaller than %filesize and have one of the following extensions: %extensions.', array('%filesize' => format_size($limits['file_size']), '%extensions' => $limits['extensions']));
  $form['buttons']['#weight'] = 100;
}

/**
 * Implementation of hook_form_alter().
 */
function itweak_upload_form_alter(&$form, $form_state, $form_id) {
  if (isset($form['type']) && isset($form['#node'])) {
    if ($form['type']['#value'] .'_node_form' == $form_id) {
      _itweak_upload_upload_form_alter($form, $form_state, strtolower(node_get_types('name', $form['#node']->type)));
    }
  }

  if ($form_id == 'comment_form') {
      _itweak_upload_upload_form_alter($form, $form_state, 'comment');
  }
}

/**
 * Implementation of hook_theme().
 */
function itweak_upload_theme() {
  return array(
    // Using explicit 'function' setting here allows to avoid namespace collisions.
    // Was not able to find that method in handbooks. [iva2k]
    'upload_form_new' =>  array(
      'arguments' => array('form' => NULL),
      'function' => 'itweak_upload_upload_form_new',
    ),
    'comment_upload_form_new' =>  array(
      'arguments' => array('form' => NULL),
      'function' => 'itweak_upload_comment_upload_form_new',
    ),
    'upload_form_current' =>  array(
      'arguments' => array('form' => NULL),
      'function' => 'itweak_upload_upload_form_current',
    ),
    'comment_upload_form_current' =>  array(
      'arguments' => array('form' => NULL),
      'function' => 'itweak_upload_comment_upload_form_current',
    ),
    'upload_attachments' => array(
      'arguments' => array('files' => NULL),
      'function' => 'itweak_upload_upload_attachments',
    ),
    'comment_upload_attachments' => array(
//?
      'arguments' => array('files' => NULL, 'display_images' => FALSE, 'preset' => NULL),
//      'arguments' => array('files' => NULL),
      'function' => 'itweak_upload_comment_upload_attachments',
    ),
  );
}


/**
 * Implementation of theme_upload_form_new().
 * Theme the fieldset for new attachment. 
 */
function itweak_upload_upload_form_new($form) {
  unset($form['new']['upload']['#title']);
  unset($form['new']['upload']['#description']);
  drupal_add_tabledrag('upload-attachments', 'order', 'sibling', 'upload-weight');
  return drupal_render($form);
}

/**
 * Implementation of theme_upload_form_current().
 * Theme the upload form for current attachments.
 */
function itweak_upload_upload_form_current($form) {

  drupal_add_tabledrag('upload-attachments', 'order', 'sibling', 'upload-weight');

  foreach (element_children($form) as $key) {
    // Add class to group weight fields for drag and drop.
    $form[$key]['weight']['#attributes']['class'] = 'upload-weight';
    $row = array('');
    $output = '';
    // Description: we save the URL, remove it as a description and change the size of the input
    $url = $form[$key]['description']['#description'];
    unset($form[$key]['description']['#description']);
    $form[$key]['description']['#size'] = 40;
    $form[$key]['description']['#attributes'] = array('class' => 'rename');
    $output .= drupal_render($form[$key]['description']);
    // Size & URL
    $output .= '<span class="details">'. drupal_render($form[$key]['size']) .' - '. $url .'</span>';
    $row[] = array(
      'data' => $output,
      'class' => 'file container-inline'
    );
    // Remove
    $form[$key]['remove']['#attributes'] = array('class' => 'remove');
    $form[$key]['remove']['#suffix'] = ' '. t('Remove');
	$row[] = array(
      'data' => drupal_render($form[$key]['remove']),
      'class' => 'remove container-inline'
    );
    // List
    $form[$key]['list']['#suffix'] = ' '. t('List');
	$row[] = array(
      'data' => drupal_render($form[$key]['list']),
      'class' => 'list container-inline'
    );
    // Weight
    $row[] = drupal_render($form[$key]['weight']);
    // Add the extension as a class for styling
    $extension = strtolower(substr(strrchr($form[$key]['filename']['#value'], '.'), 1));
    $rows[] = array('data' => $row, 'class' => 'draggable mime-'. $extension);
  }
  $output = theme('table', array(), $rows, array('id' => 'upload-attachments'));
  $output .= drupal_render($form);
  return $output;
}

/**
 * Implementation of theme_upload_attachments().
 * Theme the attachments output.
 */
function itweak_upload_upload_attachments($files) {
  $items = array();
  foreach ($files as $file) {
    $file = (object)$file;
    if ($file->list && empty($file->remove)) {
      $extension = strtolower(substr(strrchr($file->filename, '.'), 1));
      $href = file_create_url($file->filepath);
      $text = $file->description ? $file->description : $file->filename;
      $items[] = array(
        'data' => l($text, $href) .' - '. format_size($file->filesize),
        'class' => 'mime-'. $extension,
      );
    }
  }
  if (count($items)) {
    return theme('item_list', $items, $title = NULL, $type = 'ul', array('class' => 'attachment-list', 'id' => 'attachments'));
  }
}

/**
 * Stubs for comment_upload theme. Same as upload, therefore simple redirects.
 */
/**
 * Implementation of theme_comment_upload_form_new().
 */
function itweak_upload_comment_upload_form_new($form) {
  return itweak_upload_upload_form_new($form);
}
/**
 * Implementation of theme_comment_upload_form_current().
 */
function itweak_upload_comment_upload_form_current($form) {
  return itweak_upload_upload_form_current($form);
}
/**
 * Implementation of theme_comment_upload_attachments().
 */
function itweak_upload_comment_upload_attachments($files) {
  return itweak_upload_upload_attachments($files);
}