Club Drupal

<?php

/**

 * @file

 * Display Suite forms integration.

 */

/**

 * Implements hook_theme().

 */

function ds_forms_theme() {

  $theme_functions = array();

  $theme_functions['ds_forms_custom_form'] = array(

    'render element' => 'form',

  );

  return $theme_functions;

}

/**

 * Implements hook_form_FORM_ID_alter().

 */

function ds_forms_form_field_ui_field_overview_form_alter(&$form, &$form_state) {

  // Determine if this entity type is supported

  if (_ds_forms_is_entity_type_supported($form['#entity_type'])) {

    // Add necessary variables for DS Field UI.

    $form['#view_mode'] = 'form';

    $form_state['no_panels'] = TRUE;

    $form_state['no_view_mode_suggestions'] = TRUE;

    // Make sure the refresh works.

    if (!module_exists('field_group')) {

      // This key is used to store the current updated field.

      $form_state += array(

        'formatter_settings_edit' => NULL,

      );

      // Add AJAX wrapper.

      $form['fields']['#prefix'] = '<div id="field-display-overview-wrapper">';

      $form['fields']['#suffix'] = '</div>';

      // See field_ui.admin.inc for more details on refresh rows.

      $form['refresh_rows'] = array('#type' => 'hidden');

      $form['refresh'] = array(

        '#type' => 'submit',

        '#value' => t('Refresh'),

        '#op' => 'refresh_table',

        '#submit' => array('field_ui_display_overview_multistep_submit'),

        '#ajax' => array(

          'callback' => 'field_ui_display_overview_multistep_js',

          'wrapper' => 'field-display-overview-wrapper',

          'effect' => 'fade',

          // The button stays hidden, so we hide the AJAX spinner too. Ad-hoc

          // spinners will be added manually by the client-side script.

          'progress' => 'none',

        ),

      );

      $form['#attached']['css'][] = drupal_get_path('module', 'ds_forms') . '/css/ds_forms.admin.css';

    }

    // Attach js.

    $form['#attached']['js'][] = drupal_get_path('module', 'ds_forms') . '/js/ds_forms.admin.js';

    // Load Display Suite.

    form_load_include($form_state, 'inc', 'ds', 'includes/ds.field_ui');

    ds_field_ui_fields_layouts($form, $form_state);

  }

}

/**

 * Implements hook_form_alter().

 */

function ds_forms_form_alter(&$form, &$form_state, $form_id) {

  if ($ds_form = ds_build_load($form, $form_id)) {

    if ($layout = ds_get_layout($ds_form->entity_type, $ds_form->bundle, 'form', FALSE)) {

      // Add the theming function and add the layout as a class.

      $form['#theme'] = array('ds_forms_custom_form');

      $class = strtr($layout['layout'], '_', '-');

      if ((isset($form['#attributes']['class']) && is_array($form['#attributes']['class'])) || !(isset($form['#attributes']['class']))) {

        $form['#attributes']['class'][] = $class;

      }

      elseif (isset($form['#attributes']['class']) && is_string($form['#attributes']['class'])) {

        $form['#attributes']['class'] .= ' ' . $class . ' ';

      }

    }

  }

}

/**

 * Implements hook_field_widget_WIDGET_TYPE_form_alter().

 */

function ds_forms_field_widget_field_collection_embed_form_alter(&$element, &$form_state, $context){

  if ($ds_form = ds_build_load($element, 'field_collection_embed')) {

    if ($layout = ds_get_layout($ds_form->entity_type, $ds_form->bundle, 'form', FALSE)) {

      // Add the theming function and add the layout as a class.

      $element['#theme'] = array('ds_forms_custom_form');

      $element['#form_id'] = 'field_collection_embed';

      $class = strtr($layout['layout'], '_', '-');

      if ((isset($element['#attributes']['class']) && is_array($element['#attributes']['class'])) || !(isset($element['#attributes']['class']))) {

        $element['#attributes']['class'][] = $class;

      }

      elseif (isset($element['#attributes']['class']) && is_string($element['#attributes']['class'])) {

        $element['#attributes']['class'] .= ' ' . $class . ' ';

      }

    }

  }

}

/**

 * Helper function to determine if this form can be loaded.

 */

function ds_build_load($form, $form_id) {

  $ds_form = FALSE;

  if (isset($form['#entity_type']) && isset($form['#bundle']) && $form_id != 'field_ui_field_overview_form' && $form_id != 'field_ui_display_overview_form'

      && $form_id != 'field_ui_field_settings_form' && $form_id != 'field_ui_widget_type_form' && $form_id != 'field_ui_field_edit_form' && !preg_match('/^editablefields_form_/', $form_id)) {

    $ds_form = new stdClass();

    $ds_form->entity_type = $form['#entity_type'];

    $ds_form->bundle = $form['#bundle'];

  }

  return $ds_form;

}

/**

 * Implements hook_preprocess_ds_forms_custom_form().

 */

function ds_forms_preprocess_ds_forms_custom_form(&$vars) {

  $form = ds_build_load($vars['form'], $vars['form']['#form_id']);

  if (!$form) {

    return;

  }

  $entity_type = $form->entity_type;

  $bundle = $form->bundle;

  if ($layout = ds_get_layout($entity_type, $bundle, 'form', FALSE)) {

    // Theme hook suggestions.

    $vars['theme_hook_suggestions'][] = $layout['layout'];

    $vars['theme_hook_suggestions'][] = $layout['layout'] . '__' . $entity_type;

    $vars['theme_hook_suggestions'][] = $layout['layout'] . '__' . $entity_type . '_' . $bundle;

    $form = &$vars['form'];

    // Add path to css file.

    if (isset($layout['css'])) {

      drupal_add_css($layout['path'] . '/' . $layout['layout'] . '.css');

    }

    // Add the hidden region.

    $layout['regions']['hidden'] = 'Hidden';

    // Create region variables based on the layout settings.

    foreach ($layout['regions'] as $region_name => $region) {

      // Create the region content.

      if ($region_name == 'hidden') {

        ds_forms_render_region($form, $region_name, $layout);

      }

      else {

        $vars[$region_name] = ds_forms_render_region($form, $region_name, $layout);

      }

      // Add extras classes to the region.

      $vars[$region_name . '_classes'] = !empty($layout['settings']['classes'][$region_name]) ? ' ' . implode(' ', $layout['settings']['classes'][$region_name]) : '';

      // Add a wrapper to the region.

      if (empty($layout['flexible'])) {

        $vars[$region_name . '_wrapper'] = isset($layout['settings']['wrappers'][$region_name]) ? $layout['settings']['wrappers'][$region_name] : 'div';

      }

    }

    // Add layout attributes if any

    if (!empty($layout['settings']['layout_attributes'])) {

      $vars['layout_attributes'] = ' ' . $layout['settings']['layout_attributes'];

    }

    else {

      $vars['layout_attributes'] = '';

    }

    if (isset($layout['settings']['classes']['layout_class'])) {

      foreach ($layout['settings']['classes']['layout_class'] as $layout_class) {

        $vars['classes_array'][] = $layout_class;

      }

    }

    // Ensure there is a class

    $vars['classes_array'][] = 'ds-form';

    // Merge the classes into a string

    $vars['classes'] = implode(' ', $vars['classes_array']);

    // Add a layout wrapper

    $vars['layout_wrapper'] = isset($layout['settings']['layout_wrapper']) ? $layout['settings']['layout_wrapper'] : 'div';

    // Add the rest of the form elements

    $vars['drupal_render_children'] = drupal_render_children($vars['form']);

  }

}

/**

 * Render a form region.

 *

 * @param $content

 *   An array of content fields.

 * @param $region

 *   The name of region to render.

 * @param $layout

 *   The layout definition.

 */

function ds_forms_render_region(&$content, $region, $layout) {

  $output = '';

  if (isset($layout['settings']['regions'][$region])) {

    foreach ($layout['settings']['regions'][$region] as $key => $field) {

      if ($region == 'hidden') {

        $content[$field]['#access'] = FALSE;

      }

      else {

        $output .= drupal_render($content[$field]);

      }

    }

  }

  return $output;

}

/**

 * Determines if this entity type is supported by ds_forms.

 *

 * Currently supports all fieldable entity types.

 */

function _ds_forms_is_entity_type_supported($entity_type) {

  $info = entity_get_info($entity_type);

  return !empty($info['fieldable']);

}