Extract history icon link for slim header's actions into a template include

wagtail/admin/templates/wagtailadmin/pages/page_listing_header.html

@@ -18,15 +18,8 @@
         {% include "wagtailadmin/shared/side_panel_toggles.html" %}
         {# Page history #}
         {% if parent_page.get_latest_revision %}
-            <a href="{% url 'wagtailadmin_pages:history' parent_page.id %}"
+            {% url 'wagtailadmin_pages:history' parent_page.id as history_url %}
-                class="{{ nav_icon_button_classes }}"
+            {% include "wagtailadmin/shared/headers/_history_icon_link.html" with history_url=history_url nav_icon_button_classes=nav_icon_button_classes nav_icon_classes=nav_icon_classes only %}
-                aria-label="{% trans 'History' %}"
-                data-controller="w-tooltip"
-                data-w-tooltip-content-value="{% trans 'History' %}"
-                data-w-tooltip-offset-value="[0, 0]"
-            >
-                {% icon name="history" classname=nav_icon_classes %}
-            </a>
         {% endif %}
 
         {% include "wagtailadmin/shared/page_status_tag_new.html" with page=parent_page %}

wagtail/admin/templates/wagtailadmin/shared/headers/_history_icon_link.html

@@ -0,0 +1,11 @@
+{% load wagtailadmin_tags i18n %}
+
+<a href="{{ history_url }}"
+    class="{{ nav_icon_button_classes }}"
+    aria-label="{% trans 'History' %}"
+    data-controller="w-tooltip"
+    data-w-tooltip-content-value="{% trans 'History' %}"
+    data-w-tooltip-offset-value="[0, 0]"
+>
+    {% icon name="history" classname=nav_icon_classes %}
+</a>

wagtail/admin/templates/wagtailadmin/shared/headers/page_edit_header.html

@@ -19,15 +19,8 @@
 
     {# Page history #}
     {% if page.get_latest_revision %}
-        <a href="{% url 'wagtailadmin_pages:history' page.id %}"
+        {% url 'wagtailadmin_pages:history' page.id as history_url %}
-            class="{{ nav_icon_button_classes }}"
+        {% include "wagtailadmin/shared/headers/_history_icon_link.html" with history_url=history_url nav_icon_button_classes=nav_icon_button_classes nav_icon_classes=nav_icon_classes only %}
-            aria-label="{% trans 'History' %}"
-            data-controller="w-tooltip"
-            data-w-tooltip-content-value="{% trans 'History' %}"
-            data-w-tooltip-offset-value="[0, 0]"
-        >
-            {% icon name="history" classname=nav_icon_classes %}
-        </a>
     {% endif %}
 
     {% include "wagtailadmin/shared/page_status_tag_new.html" with page=page_for_status %}

wagtail/snippets/templates/wagtailsnippets/snippets/headers/edit_header.html

@@ -5,13 +5,5 @@
     {{ block.super }}
 
     {# Object history #}
-    <a href="{{ view.get_history_url }}"
+    {% include "wagtailadmin/shared/headers/_history_icon_link.html" with history_url=history_url nav_icon_button_classes=nav_icon_button_classes nav_icon_classes=nav_icon_classes only %}
-        class="{{ nav_icon_button_classes }}"
-        aria-label="{% trans 'History' %}"
-        data-controller="w-tooltip"
-        data-w-tooltip-content-value="{% trans 'History' %}"
-        data-w-tooltip-offset-value="[0, 0]"
-    >
-        {% icon name="history" classname=nav_icon_classes %}
-    </a>
 {% endblock %}