Move 'add child page' to its own primary action

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

@@ -10,6 +10,12 @@
     {% page_breadcrumbs parent_page 'wagtailadmin_explore' url_root_name='wagtailadmin_explore_root' is_expanded=parent_page.is_root classname='sm:w-py-3 lg:w-py-7' %}
     {# Actions divider #}
     <div class="w-w-px w-h-[30px] w-ml-auto sm:w-ml-0 w-bg-border-furniture"></div>
+
+    {% page_permissions parent_page as parent_page_perms %}
+    {% if parent_page_perms.can_add_subpage %}
+        <a href="{% url "wagtailadmin_pages:add_subpage" parent_page.id %}" class="button button-small bicolor button--icon button-secondary w-ml-3">{% icon name="plus" wrapped=1 %}{% trans "Add child page" %}</a>
+    {% endif %}
+
     {# Page actions dropdown #}
     {% page_header_buttons parent_page user=request.user view_name="index" %}
 {% endblock %}

wagtail/admin/wagtail_hooks.py

@@ -392,7 +392,11 @@ def page_listing_more_buttons(page, user, next_url=None):
 @hooks.register("register_page_header_buttons")
 def page_header_buttons(page, user, view_name, next_url=None):
     yield PageListingEditButton(page=page, user=user, priority=10)
-    yield PageListingAddChildPageButton(page=page, user=user, priority=15)
+
+    # "add child" is a separate primary action on the index page
+    if view_name != "index":
+        yield PageListingAddChildPageButton(page=page, user=user, priority=15)
+
     yield PageListingMoveButton(page=page, user=user, priority=20)
     yield PageListingCopyButton(page=page, user=user, next_url=next_url, priority=30)
     yield PageListingDeleteButton(page=page, user=user, next_url=next_url, priority=50)