wysiwyg_imageupload.ajax.inc

<?php
// $Id$

// Copyright (c) 2010 Impressive.media
// Author: Eugen Mayer

/**
 * Called through ajax(AHAH), uploading an image and replacing
 * the upload form with an image-details form, if successfully uploaded.
 */
function _wysiwyg_imageupload_entity_upload($node_form_build_id) {
  // Load the cache which includes the currently already uploaded files.
  $cached_files = cache_get('wysiwyg_imageupload_' . $node_form_build_id);

  // Yet no file, initialize the array.
  if (empty($cached_files)) {
    $cached_files = new stdClass();
    $cached_files->data = array();
  }
  $cached_files = $cached_files->data;

  // Handle new uploads. Create the files in the files table and make them temperory.
  // The will need to be made persistend on form submit in the hook_comment or hook_nodeapi
  $img_details = _wysiwyg_imageupload_upload_file();
  if ($img_details->filepath != '') {
    $options = array();
    if (variable_get('wysiwyg_imageupload_filename_as_title_default', FALSE)) {
      $options['title'] = check_plain($img_details->filename);
    }
    // save the fid as used inline and generate a iid (inline id)
    $iid = _wysiwyg_imageupload_create_inline_entity($img_details, TRUE, $options);
    // we store the iid in the file object, so we can use it on submit of the node form
    // to update the inline-entry to be static and not temporary
    $img_details->iid = $iid;
    $cached_files[$iid] = $img_details;
    cache_set( 'wysiwyg_imageupload_' . $node_form_build_id, $cached_files, 'cache', CACHE_PERMANENT );
    return $iid;
  }
  //else
  return FALSE;
}

/**
 * Ajax callback to render a image for the wysiwyg editor
 */
function _wysiwyg_imageupload_render_wysiwyg($iid) {
  $image_obj = _wysiwyg_imageupload_load_inline_entity($iid);
  $output = theme('wysiwyg_imageupload_render_image_wysiwyg', $image_obj, array());

  $GLOBALS['devel_shutdown'] = FALSE;
  drupal_set_header('Content-Type: text/javascript; charset=utf-8');
  print _wysiwyg_imageupload_to_js(array('status' => TRUE, 'data' => $output));
  exit();
}

/**
 * Ajax callback to render some images for the wysiwyg editor
 */
function _wysiwyg_imageupload_render_wysiwyg_images($iids, $revisioned, $form_id) {
  $iids = split(',', $iids);
  $output = array();
  foreach ($iids as $iid) {
    $image_obj = _wysiwyg_imageupload_load_inline_entity($iid);
    $output[$iid] = theme('wysiwyg_imageupload_render_image_wysiwyg', $image_obj, array('wysiwyg_placeholder' => '1'));
  }

  $GLOBALS['devel_shutdown'] = FALSE;
  drupal_set_header('Content-Type: text/javascript; charset=utf-8');
  print _wysiwyg_imageupload_to_js(array('status' => TRUE, 'data' => $output));
  exit();
}

/**
 * Helper to convert a inline-image into a backend tag
 */
function _wysiwyg_imageupload_render_backend($iid, $arguments = "") {
  $image_obj = _wysiwyg_imageupload_load_inline_entity($iid);
  return "[[wysiwyg_imageupload:$iid:$arguments]]";
}