Image field should implements image_url_plain view mode

if you hack the file.fields.inc file, by changing the hook_field_formatter_info(), it work out of the box. Instead of having the image, you have the url of the original file. That mean we have to handle the style and output the right link.

<?php
/**
 * Implements hook_field_formatter_info().
 */
function file_field_formatter_info() {
  return array(
    'file_default' => array(
      'label' => t('Generic file'),
      'field types' => array('file'),
    ),
    'file_table' => array(
      'label' => t('Table of files'),
      'field types' => array('file'),
    ),
    'file_url_plain' => array(
      'label' => t('URL to file'),
      'field types' => array('file', 'image'), // Added image.
    ),
  );
}
?>

Here is the code to implements in a module if you want a quick work around:

<?php
/**
 * Implements hook_field_info().
 */
function MODULE_field_formatter_info() {
  return array(
    'file_url_plain' => array(
      'label' => t('URL to image'),
      'field types' => array('image'),
      'settings' => array('image_style' => '', 'image_link' => ''),
    ),
  );
}

/**
 * Implements hook_field_formatter_view().
 */
function MODULE_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
  $element = array();

  foreach ($items as $delta => $item) {
    $style_path = image_style_path($display['settings']['image_style'], $item['uri']);
    if (!file_exists($style_path)) {
      $style_path = image_style_url($display['settings']['image_style'], $item['uri']);
    }

    $element[$delta] = array(
      '#markup' => empty($style_path) ? '' : file_create_url($style_path),
    );
  }

  return $element;
}

/**
 * Implements hook_field_formatter_settings_form().
 */
function MODULE_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
  return image_field_formatter_settings_form($field, $instance, $view_mode, $form, $form_state);
}

/**
 * Implements hook_field_formatter_settings_summary().
 */
function MODULE_field_formatter_settings_summary($field, $instance, $view_mode) {
  return image_field_formatter_settings_summary($field, $instance, $view_mode);
}

?>

I think this need some review, but it is pretty straightforward to integrate in the image field.

Attached a simplier solution

Patch is ignored.

Let's submit again..

Ha thanks, anyway I think I missed something in the patch, the correct handling of images styles; here it just gives url to the original file, but the goal was to give url to a styled image.

Attached a patch adding the feature for image field to display image url as plain text.

(Mainly useful for AMF or JSON serialization where you need a specific type of image but not the original URL).

Need review, and with the good patch extension this time.

What the hell with that ?!

Tricking the Test Engine with a fake index...

In case of

This image.field.inc changed since 7.0 ?

I can't navigate through git repository neither clone it (i'm on 3G bandwidth with my phone and limits download to 8MB).

Let's try this

The previous patch actually introduce a tab instead of a space, so use this one instead.

(If it passes obviously..)

Changed component to image module.

This problem can be fixed more generally by: #1133984: Formatting fields values not only for html output.