From 3bc1871e392a623d83fa223c4c8712b6db255e5f Mon Sep 17 00:00:00 2001
From: paul121 <paul.weidner@gmail.com>
Date: Fri, 4 Jun 2021 10:18:56 -0700
Subject: [PATCH 1/4] Render each ID tag property on a separate line.

---
 modules/core/id_tag/farm_id_tag.module        | 12 +++
 .../Field/FieldFormatter/IdTagFormatter.php   | 24 +++++-
 .../id_tag/templates/field--id-tag.html.twig  | 75 +++++++++++++++++++
 3 files changed, 108 insertions(+), 3 deletions(-)
 create mode 100644 modules/core/id_tag/templates/field--id-tag.html.twig

diff --git a/modules/core/id_tag/farm_id_tag.module b/modules/core/id_tag/farm_id_tag.module
index 0e3717ee..2c3a3224 100644
--- a/modules/core/id_tag/farm_id_tag.module
+++ b/modules/core/id_tag/farm_id_tag.module
@@ -26,3 +26,15 @@ function farm_id_tag_type_allowed_values($bundle) {
   }
   return $allowed_values;
 }
+
+/**
+ * Implements hook_theme().
+ */
+function farm_id_tag_theme() {
+  return [
+    'field__id_tag' => [
+      'template' => 'field--id-tag',
+      'base hook' => 'field',
+    ],
+  ];
+}
diff --git a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
index ce95f240..830e32ae 100644
--- a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
+++ b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
@@ -25,9 +25,27 @@ class IdTagFormatter extends FormatterBase {
     $elements = [];
 
     foreach ($items as $delta => $item) {
-      $elements[$delta]['id'] = ['#markup' => $item->id];
-      $elements[$delta]['type'] = ['#markup' => $item->type];
-      $elements[$delta]['location'] = ['#markup' => $item->location];
+
+      // Render the ID if it exists.
+      if (!empty($item->id)) {
+        $elements[$delta]['id'] = [
+          '#markup' => $this->t('ID: @value', ['@value' => $item->id]),
+        ];
+      }
+
+      // Render the type if it exists.
+      if (!empty($item->type)) {
+        $elements[$delta]['type'] = [
+          '#markup' => $this->t('Type: @value', ['@value' => $item->type]),
+        ];
+      }
+
+      // Render the location if it exists.
+      if (!empty($item->location)) {
+        $elements[$delta]['location'] = [
+          '#markup' => $this->t('Location: @value', ['@value' => $item->location]),
+        ];
+      }
     }
 
     return $elements;
diff --git a/modules/core/id_tag/templates/field--id-tag.html.twig b/modules/core/id_tag/templates/field--id-tag.html.twig
new file mode 100644
index 00000000..d8680cde
--- /dev/null
+++ b/modules/core/id_tag/templates/field--id-tag.html.twig
@@ -0,0 +1,75 @@
+{#
+/**
+ * @file
+ * Theme override for the id-tag field type.
+ *
+ * Available variables:
+ * - attributes: HTML attributes for the containing element.
+ * - label_hidden: Whether to show the field label or not.
+ * - title_attributes: HTML attributes for the title.
+ * - label: The label for the field.
+ * - multiple: TRUE if a field can contain multiple items.
+ * - items: List of all the field items. Each item contains:
+ *   - attributes: List of HTML attributes for each item.
+ *   - content: The field item's content.
+ *     - id: The ID of the tag (optional).
+ *     - type: The type the tag (optional).
+ *     - location: The location of the tag (optional).
+ * - entity_type: The entity type to which the field belongs.
+ * - field_name: The name of the field.
+ * - field_type: The type of the field.
+ * - label_display: The display settings for the label.
+ *
+ *
+ * @see template_preprocess_field()
+ */
+#}
+{%
+  set classes = [
+  'field',
+  'field--name-' ~ field_name|clean_class,
+  'field--type-' ~ field_type|clean_class,
+  'field--label-' ~ label_display,
+  label_display == 'inline' ? 'clearfix',
+]
+%}
+{%
+  set title_classes = [
+  'field__label',
+  label_display == 'visually_hidden' ? 'visually-hidden',
+]
+%}
+
+{# Use a macro to render each id-tag item. Each property is wrapped in its own div. #}
+{% macro id_tag(item) %}
+  {% for property in item.content %}
+    <div>{{ property }}</div>
+  {% endfor %}
+{% endmacro %}
+
+{% if label_hidden %}
+  {% if multiple %}
+    <div{{ attributes.addClass(classes, 'field__items') }}>
+      {% for item in items %}
+        <div{{ item.attributes.addClass('field__item') }}>{{ _self.id_tag(item) }}</div>
+      {% endfor %}
+    </div>
+  {% else %}
+    {% for item in items %}
+      <div{{ attributes.addClass(classes, 'field__item') }}>{{ _self.id_tag(item) }}</div>
+    {% endfor %}
+  {% endif %}
+{% else %}
+  <div{{ attributes.addClass(classes) }}>
+    <div{{ title_attributes.addClass(title_classes) }}>{{ label }}</div>
+    {% if multiple %}
+    <div class="field__items">
+      {% endif %}
+      {% for item in items %}
+        <div{{ item.attributes.addClass('field__item') }}>{{ _self.id_tag(item) }}</div>
+      {% endfor %}
+      {% if multiple %}
+    </div>
+    {% endif %}
+  </div>
+{% endif %}

From bda93d43732de08db4200b2d3488a037240a1e7d Mon Sep 17 00:00:00 2001
From: paul121 <paul.weidner@gmail.com>
Date: Fri, 4 Jun 2021 10:20:16 -0700
Subject: [PATCH 2/4] Add "id-tag__{property}" class to each div.

---
 modules/core/id_tag/templates/field--id-tag.html.twig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/core/id_tag/templates/field--id-tag.html.twig b/modules/core/id_tag/templates/field--id-tag.html.twig
index d8680cde..4af519f9 100644
--- a/modules/core/id_tag/templates/field--id-tag.html.twig
+++ b/modules/core/id_tag/templates/field--id-tag.html.twig
@@ -43,7 +43,7 @@
 {# Use a macro to render each id-tag item. Each property is wrapped in its own div. #}
 {% macro id_tag(item) %}
   {% for property in item.content %}
-    <div>{{ property }}</div>
+    <div class="id-tag__{{ _key }}">{{ property }}</div>
   {% endfor %}
 {% endmacro %}
 

From 68a06cbf01c28d73ccb0314259e81db32356e3fb Mon Sep 17 00:00:00 2001
From: paul121 <paul.weidner@gmail.com>
Date: Fri, 4 Jun 2021 10:25:41 -0700
Subject: [PATCH 3/4] Render the tag_type label.

---
 .../Field/FieldFormatter/IdTagFormatter.php   | 57 ++++++++++++++++++-
 1 file changed, 54 insertions(+), 3 deletions(-)

diff --git a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
index 830e32ae..dec9043a 100644
--- a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
+++ b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
@@ -2,8 +2,11 @@
 
 namespace Drupal\farm_id_tag\Plugin\Field\FieldFormatter;
 
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\FormatterBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Plugin implementation of the 'id tag' formatter.
@@ -18,6 +21,54 @@ use Drupal\Core\Field\FormatterBase;
  */
 class IdTagFormatter extends FormatterBase {
 
+  /**
+   * The tag_type entity storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $tagTypeStorage;
+
+  /**
+   * Constructs an IdTagFormatter object.
+   *
+   * @param string $plugin_id
+   *   The plugin_id for the formatter.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The definition of the field to which the formatter is associated.
+   * @param array $settings
+   *   The formatter settings.
+   * @param string $label
+   *   The formatter label display setting.
+   * @param string $view_mode
+   *   The view mode.
+   * @param array $third_party_settings
+   *   Any third party settings.
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
+   *   The entity type manager service.
+   */
+  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, EntityTypeManagerInterface $entity_type_manager) {
+    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings);
+    $this->tagTypeStorage = $entity_type_manager->getStorage('tag_type');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $plugin_id,
+      $plugin_definition,
+      $configuration['field_definition'],
+      $configuration['settings'],
+      $configuration['label'],
+      $configuration['view_mode'],
+      $configuration['third_party_settings'],
+      $container->get('entity_type.manager'),
+    );
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -33,10 +84,10 @@ class IdTagFormatter extends FormatterBase {
         ];
       }
 
-      // Render the type if it exists.
-      if (!empty($item->type)) {
+      // Render the type if it exists. Use the tag_type label.
+      if (!empty($item->type) && $tag_type = $this->tagTypeStorage->load($item->type)) {
         $elements[$delta]['type'] = [
-          '#markup' => $this->t('Type: @value', ['@value' => $item->type]),
+          '#markup' => $this->t('Type: @value', ['@value' => $tag_type->label()]),
         ];
       }
 

From 0809f644d4352689149f6051ad27d35624645519 Mon Sep 17 00:00:00 2001
From: paul121 <paul.weidner@gmail.com>
Date: Fri, 4 Jun 2021 10:33:49 -0700
Subject: [PATCH 4/4] Add padding between id-tag field items.

---
 modules/core/id_tag/css/id_tag_field.css                      | 4 ++++
 modules/core/id_tag/farm_id_tag.libraries.yml                 | 4 ++++
 .../id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php | 1 +
 3 files changed, 9 insertions(+)
 create mode 100644 modules/core/id_tag/css/id_tag_field.css
 create mode 100644 modules/core/id_tag/farm_id_tag.libraries.yml

diff --git a/modules/core/id_tag/css/id_tag_field.css b/modules/core/id_tag/css/id_tag_field.css
new file mode 100644
index 00000000..fe0d5211
--- /dev/null
+++ b/modules/core/id_tag/css/id_tag_field.css
@@ -0,0 +1,4 @@
+/* Add padding between id-tag field items. */
+.field--type-id-tag .field__item:not(:last-child) {
+  padding-bottom: 1em;
+}
diff --git a/modules/core/id_tag/farm_id_tag.libraries.yml b/modules/core/id_tag/farm_id_tag.libraries.yml
new file mode 100644
index 00000000..d30519d6
--- /dev/null
+++ b/modules/core/id_tag/farm_id_tag.libraries.yml
@@ -0,0 +1,4 @@
+id_tag_field:
+  css:
+    theme:
+      css/id_tag_field.css: { }
diff --git a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
index dec9043a..2872d7d6 100644
--- a/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
+++ b/modules/core/id_tag/src/Plugin/Field/FieldFormatter/IdTagFormatter.php
@@ -99,6 +99,7 @@ class IdTagFormatter extends FormatterBase {
       }
     }
 
+    $elements['#attached']['library'][] = 'farm_id_tag/id_tag_field';
     return $elements;
   }