Issue #1732672 by damiankloip, dawehner: Added description option to exposed filters.

css/views-admin.seven.css

@@ -127,7 +127,8 @@ fieldset.fieldset-no-legend {
 .dependent-options,
 .dependent-options.form-item,
 .form-item-options-expose-required,
-.form-item-options-expose-label {
+.form-item-options-expose-label,
+.form-item-options-expose-description {
   margin-left: 1.5em;
 }
 
@@ -139,7 +140,8 @@ fieldset.fieldset-no-legend {
 .views-admin-dependent .dependent-options .form-type-select,
 .views-admin-dependent .dependent-options .form-type-textfield,
 .form-item-options-expose-required,
-.form-item-options-expose-label {
+.form-item-options-expose-label,
+.form-item-options-expose-description {
   margin-bottom: 6px;
   margin-top: 6px;
 }

css/views-admin.theme.css

@@ -933,7 +933,8 @@ ul#views-display-menu-tabs li.add ul.action-list li{
 /* @group Expose filter form items */
 
 .form-item-options-expose-required,
-.form-item-options-expose-label {
+.form-item-options-expose-label,
+.form-item-options-expose-description {
   margin-bottom: 6px;
   margin-left: 18px;
   margin-top: 6px;

includes/admin.inc

@@ -3508,6 +3508,7 @@ function theme_views_ui_expose_filter_form($variables) {
     $output .= drupal_render($form['required']);
   }
   $output .= drupal_render($form['label']);
+  $output .= drupal_render($form['description']);
 
   $output .= drupal_render($form['operator']);
   $output .= drupal_render($form['value']);
@@ -3558,6 +3559,7 @@ function theme_views_ui_build_group_filter_form($variables) {
   $output .= '<div class="views-right-60">';
   $output .= drupal_render($form['widget']);
   $output .= drupal_render($form['label']);
+  $output .= drupal_render($form['description']);
   $output .= '</div>';
 
   $header = array(

lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php

@@ -120,6 +120,7 @@ function option_definition() {
       'contains' => array(
         'operator_id' => array('default' => FALSE),
         'label' => array('default' => '', 'translatable' => TRUE),
+        'description' => array('default' => '', 'translatable' => TRUE),
         'use_operator' => array('default' => FALSE, 'bool' => TRUE),
         'operator' => array('default' => ''),
         'identifier' => array('default' => ''),
@@ -144,6 +145,7 @@ function option_definition() {
     $options['group_info'] = array(
       'contains' => array(
         'label' => array('default' => '', 'translatable' => TRUE),
+        'description' => array('default' => '', 'translatable' => TRUE),
         'identifier' => array('default' => ''),
         'optional' => array('default' => TRUE, 'bool' => TRUE),
         'widget' => array('default' => 'select'),
@@ -494,6 +496,13 @@ function expose_form(&$form, &$form_state) {
       '#size' => 40,
     );
 
+    $form['expose']['description'] = array(
+      '#type' => 'textfield',
+      '#default_value' => $this->options['expose']['description'],
+      '#title' => t('Description'),
+      '#size' => 60,
+    );
+
     if (!empty($form['operator']['#type'])) {
        // Increase the width of the left (operator) column.
       $form['operator']['#prefix'] = '<div class="views-group-box views-left-40">';
@@ -668,6 +677,7 @@ function expose_options() {
       'operator' => $this->options['id'] . '_op',
       'identifier' => $this->options['id'],
       'label' => $this->definition['title'],
+      'description' => NULL,
       'remember' => FALSE,
       'multiple' => FALSE,
       'required' => FALSE,
@@ -680,6 +690,7 @@ function expose_options() {
   function build_group_options() {
     $this->options['group_info'] = array(
       'label' => $this->definition['title'],
+      'description' => NULL,
       'identifier' => $this->options['id'],
       'optional' => TRUE,
       'widget' => 'select',
@@ -824,6 +835,12 @@ function build_group_form(&$form, &$form_state) {
       '#title' => t('Label'),
       '#size' => 40,
     );
+    $form['group_info']['description'] = array(
+      '#type' => 'textfield',
+      '#default_value' => $this->options['group_info']['description'],
+      '#title' => t('Description'),
+      '#size' => 60,
+    );
     $form['group_info']['optional'] = array(
       '#type' => 'checkbox',
       '#title' => t('Optional'),
@@ -1116,6 +1133,7 @@ function exposed_info() {
       return array(
         'value' => $this->options['group_info']['identifier'],
         'label' => $this->options['group_info']['label'],
+        'description' => $this->options['group_info']['description'],
       );
     }
 
@@ -1123,6 +1141,7 @@ function exposed_info() {
       'operator' => $this->options['expose']['operator_id'],
       'value' => $this->options['expose']['identifier'],
       'label' => $this->options['expose']['label'],
+      'description' => $this->options['expose']['description'],
     );
   }
 

theme/theme.inc

@@ -934,16 +934,23 @@ function template_preprocess_views_exposed_form(&$vars) {
     }
     $widget = new stdClass;
     // set up defaults so that there's always something there.
-    $widget->label = $widget->operator = $widget->widget = NULL;
+    $widget->label = $widget->operator = $widget->widget = $widget->description = NULL;
 
     $widget->id = isset($form[$info['value']]['#id']) ? $form[$info['value']]['#id'] : '';
+
     if (!empty($info['label'])) {
       $widget->label = check_plain($info['label']);
     }
     if (!empty($info['operator'])) {
       $widget->operator = drupal_render($form[$info['operator']]);
     }
+
     $widget->widget = drupal_render($form[$info['value']]);
+
+    if (!empty($info['description'])) {
+      $widget->description = check_plain($info['description']);
+    }
+
     $vars['widgets'][$id] = $widget;
   }
 

theme/views-exposed-form.tpl.php

@@ -43,6 +43,11 @@
         <div class="views-widget">
           <?php print $widget->widget; ?>
         </div>
+        <?php if (!empty($widget->description)): ?>
+          <div class="description">
+            <?php print $widget->description; ?>
+          </div>
+        <?php endif; ?>
       </div>
     <?php endforeach; ?>
     <?php if (!empty($sort_by)): ?>