Add icon support to generic breadcrumbs template tag

client/scss/components/_breadcrumbs.scss

@@ -12,8 +12,15 @@
       }
     }
 
-    .w-breadcrumbs__sublabel {
+    .w-breadcrumbs__sublabel,
+    .w-breadcrumbs__icon {
       display: inline-block;
     }
+
+    .w-breadcrumbs__icon {
+      width: theme('spacing.5');
+      height: theme('spacing.5');
+      margin-inline-end: theme('spacing[2.5]');
+    }
   }
 }

wagtail/admin/templates/wagtailadmin/shared/breadcrumbs.html

@@ -6,6 +6,7 @@
     `items` - A list of {"url": Union[str, None], "label": str, "sublabel": Union[str, None]} dicts
     `classname` - Modifier classes
     `is_expanded` - Whether the breadcrumbs are always expanded or not, if True the breadcrumbs will not be collapsible
+    `icon_name` - The name of the icon to display before the final item when the breadcrumbs are collapsed
 {% endcomment %}
 {% with breadcrumb_link_classes='w-flex w-items-center w-text-text-label w-pr-0.5 w-text-14 w-no-underline w-outline-offset-inside w-border-b w-border-b-2 w-border-transparent w-box-content hover:w-border-current hover:w-text-text-label' breadcrumb_item_classes='w-h-full w-flex w-items-center w-overflow-hidden w-transition w-duration-300 w-whitespace-nowrap w-flex-shrink-0' icon_classes='w-w-4 w-h-4 w-ml-3' %}
     {# Breadcrumbs are visible on mobile by default but hidden on desktop #}
@@ -48,6 +49,11 @@
                                     data-w-breadcrumbs-target="content"
                                 {% endif %}
                             >
+                                {% fragment as icon %}
+                                    {% if icon_name and forloop.last %}
+                                        {% icon name=icon_name classname="w-breadcrumbs__icon w-hidden" %}
+                                    {% endif %}
+                                {% endfragment %}
                                 {% fragment as sublabel %}
                                     {% if item.sublabel %}
                                         <span class="w-sr-only">: </span>
@@ -58,11 +64,13 @@
                                 {% endfragment %}
                                 {% if item.url is not None %}
                                     <a class="{{ breadcrumb_link_classes }}" href="{{ item.url }}">
+                                        {{ icon }}
                                         {{ item.label }}
                                         {{ sublabel }}
                                     </a>
                                 {% else %}
                                     <div class="w-flex w-justify-start w-items-center">
+                                        {{ icon }}
                                         {{ item.label }}
                                         {{ sublabel }}
                                     </div>

wagtail/admin/templatetags/wagtailadmin_tags.py

@@ -67,8 +67,13 @@ register.filter("naturaltime", naturaltime)
 
 
 @register.inclusion_tag("wagtailadmin/shared/breadcrumbs.html")
-def breadcrumbs(items, is_expanded=False, classname=None):
-    return {"items": items, "is_expanded": is_expanded, "classname": classname}
+def breadcrumbs(items, is_expanded=False, classname=None, icon_name=None):
+    return {
+        "items": items,
+        "is_expanded": is_expanded,
+        "classname": classname,
+        "icon_name": icon_name,
+    }
 
 
 @register.inclusion_tag("wagtailadmin/shared/page_breadcrumbs.html", takes_context=True)