function image_field_widget_process

An element #process callback for the image_image field type.

Expands the image_image type to include the alt and title fields.

File

modules/image/image.field.inc, line 373

Code

function image_field_widget_process($element, &$form_state, $form) {
    $item = $element['#value'];
    $item['fid'] = $element['fid']['#value'];
    $instance = field_widget_instance($element, $form_state);
    $settings = $instance['settings'];
    $widget_settings = $instance['widget']['settings'];
    $element['#theme'] = 'image_widget';
    $element['#attached']['css'][] = drupal_get_path('module', 'image') . '/image.css';
    // Add the image preview.
    if ($element['#file'] && $widget_settings['preview_image_style']) {
        $variables = array(
            'style_name' => $widget_settings['preview_image_style'],
            'path' => $element['#file']->uri,
        );
        // Determine image dimensions.
        if (isset($element['#value']['width']) && isset($element['#value']['height'])) {
            $variables['width'] = $element['#value']['width'];
            $variables['height'] = $element['#value']['height'];
        }
        else {
            $info = image_get_info($element['#file']->uri);
            if (is_array($info)) {
                $variables['width'] = $info['width'];
                $variables['height'] = $info['height'];
            }
            else {
                $variables['width'] = $variables['height'] = NULL;
            }
        }
        $element['preview'] = array(
            '#type' => 'markup',
            '#markup' => theme('image_style', $variables),
        );
        // Store the dimensions in the form so the file doesn't have to be accessed
        // again. This is important for remote files.
        $element['width'] = array(
            '#type' => 'hidden',
            '#value' => $variables['width'],
        );
        $element['height'] = array(
            '#type' => 'hidden',
            '#value' => $variables['height'],
        );
    }
    // Add the additional alt and title fields.
    $element['alt'] = array(
        '#title' => t('Alternate text'),
        '#type' => 'textfield',
        '#default_value' => isset($item['alt']) ? $item['alt'] : '',
        '#description' => t('This text will be used by screen readers, search engines, or when the image cannot be loaded.'),
        // @see http://www.gawds.org/show.php?contentid=28
'#maxlength' => 512,
        '#weight' => -2,
        '#access' => (bool) $item['fid'] && $settings['alt_field'],
    );
    $element['title'] = array(
        '#type' => 'textfield',
        '#title' => t('Title'),
        '#default_value' => isset($item['title']) ? $item['title'] : '',
        '#description' => t('The title is used as a tool tip when the user hovers the mouse over the image.'),
        '#maxlength' => 1024,
        '#weight' => -1,
        '#access' => (bool) $item['fid'] && $settings['title_field'],
    );
    return $element;
}