function image_field_widget_form
7.x image.field.inc | image_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) |
Implements hook_field_widget_form().
File
- drupal-7.x/
modules/ image/ image.field.inc, line 327 - Implement an image field, based on the file module's file field.
Code
function image_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
// Add display_field setting to field because file_field_widget_form() assumes it is set.
$field['settings']['display_field'] = 0;
$elements = file_field_widget_form($form, $form_state, $field, $instance, $langcode, $items, $delta, $element);
$settings = $instance['settings'];
foreach (element_children($elements) as $delta) {
// Add upload resolution validation.
if ($settings['max_resolution'] || $settings['min_resolution']) {
$elements[$delta]['#upload_validators']['file_validate_image_resolution'] = array($settings['max_resolution'], $settings['min_resolution']);
}
// If not using custom extension validation, ensure this is an image.
$supported_extensions = array('png', 'gif', 'jpg', 'jpeg');
$extensions = isset($elements[$delta]['#upload_validators']['file_validate_extensions'][0]) ? $elements[$delta]['#upload_validators']['file_validate_extensions'][0] : implode(' ', $supported_extensions);
$extensions = array_intersect(explode(' ', $extensions), $supported_extensions);
$elements[$delta]['#upload_validators']['file_validate_extensions'][0] = implode(' ', $extensions);
// Add all extra functionality provided by the image widget.
$elements[$delta]['#process'][] = 'image_field_widget_process';
}
if ($field['cardinality'] == 1) {
// If there's only one field, return it as delta 0.
if (empty($elements[0]['#default_value']['fid'])) {
$elements[0]['#description'] = theme('file_upload_help', array('description' => field_filter_xss($instance['description']), 'upload_validators' => $elements[0]['#upload_validators']));
}
}
else {
$elements['#file_upload_description'] = theme('file_upload_help', array('upload_validators' => $elements[0]['#upload_validators']));
}
return $elements;
}