function textactions_evaluate_text in ImageCache Actions 5.2

Same name and namespace in other branches

1. 5.3 textactions.inc \textactions_evaluate_text()
2. 6 imagecache_textactions.module \textactions_evaluate_text()

Generate the dynamic text for this image. Was textactions caption - now merged as an option of text2canvas

TODO further code review for safety etc

Parameters

$image object, such as it is:

$action definition:

Return value

$text Plain string to be placed on the imagecache process.

1 call to textactions_evaluate_text()

textactions_text2canvas_image in ./textactions.inc

Place the source image on the current background

File

./textactions.inc, line 198

Code

function textactions_evaluate_text($image, $action) {

  // store our variables here
  $caption = array();

  // Find the image name
  $caption['path'] = substr($image->source, strrpos($image->source, '/') + 1);

  /*
   * This just doesn't work at the moment. Needs work
   *
    // If the image is a cck imagefield,
    // Find the image's optional title and alt text, as well as its node
    if (module_exists('imagefield')) {
      // a lot of work to find if the content_field_image_cache actually exists yet
      $table_found = false;

      $r = db_query("SHOW TABLES");
      while($row = db_fetch_array($r)) {
        if($row[0] == 'content_field_image_cache') {
          $table_found = true;
          break;
        }
      }
  $table_found = TRUE;
      if($table_found) {
        // if content_field_image_cache exists,
        // see if we can find info on the current image
        $result = db_fetch_object(db_query("SELECT c.nid, c.field_image_cache_title, c.field_image_cache_alt FROM {content_field_image_cache} c INNER JOIN {files} f ON c.field_image_cache_fid=f.fid WHERE f.filepath = '%s'", $caption['path']));
      }
      if ($result) {
        $caption['title']=$result->field_image_cache_title;
        $caption['alt']=$result->field_image_cache_alt;
        $caption['node']=node_load($result->nid);
      }
    }
  */

  // TODO more info, like supporting data for image.module image info
  // Process the php using drupal_eval (rather than eval), but with GLOBAL variables, so they can be passed successfully
  $GLOBALS['caption'] = $caption;
  $text = drupal_eval('<' . '?php global $caption; ' . $action['text'] . ' ?' . '>');
  $text = eval($action['text']);
  $text = check_plain($text);
  return $text;
}