function resp_img_field_formatter_settings_form_alter in Responsive images and styles 8

Implements hook_field_formatter_settings_form_alter().

File

./resp_img.module, line 279

Code

function resp_img_field_formatter_settings_form_alter(&$element, &$form_state, $context) {
  if (isset($context['field']['type']) && $context['field']['type'] === 'image') {
    $settings = $context['instance']['display'][$context['view_mode']]['settings'];
    $theme_breakpoints = breakpoints_breakpoint_load_all_active();
    if (!empty($theme_breakpoints)) {
      $element['resp_img_responsive'] = array(
        '#type' => 'checkbox',
        '#title' => t('Go responsive'),
        '#default_value' => isset($settings['resp_img_responsive']) ? $settings['resp_img_responsive'] : FALSE,
        // @todo: needs better wording
        '#description' => t('If you enable this, you can select an image style for each defined breakpoint/breakpoint.<br />
          The image style at the top will be used as default/fallback.<br />
          If you leave all dropdowns empty the logic will try to use the default breakpoint.'),
      );
      $element['resp_img'] = array(
        '#type' => 'container',
        '#states' => array(
          'invisible' => array(
            'input[name="fields[field_image][settings_edit_form][settings][resp_img_responsive]"]' => array(
              'checked' => FALSE,
            ),
          ),
        ),
      );
      $image_styles = image_style_options(TRUE);
      foreach ($theme_breakpoints as $breakpoint_name => $breakpoint) {
        $label = $breakpoint->name . ' [' . $breakpoint->breakpoint . ']';
        $element['resp_img'][$breakpoint_name]['1x'] = array(
          '#title' => check_plain($label),
          '#type' => 'select',
          '#options' => $image_styles,
          '#default_value' => isset($settings['resp_img'][$breakpoint_name]['1x']) ? $settings['resp_img'][$breakpoint_name]['1x'] : '',
        );
        if (isset($breakpoint->multipliers) && !empty($breakpoint->multipliers)) {
          foreach ($breakpoint->multipliers as $multiplier => $value) {
            if ($multiplier != '1x' && $value) {
              $element['resp_img'][$breakpoint_name][$multiplier] = array(
                '#title' => check_plain($multiplier . ' ' . $label),
                '#type' => 'select',
                '#options' => $image_styles,
                '#default_value' => isset($settings['resp_img'][$breakpoint_name][$multiplier]) ? $settings['resp_img'][$breakpoint_name][$multiplier] : '',
              );
            }
          }
        }
      }
    }
  }
}