Allow passing arbitrary link attributes to TitleColumn

wagtail/admin/templates/wagtailadmin/tables/attrs.html

@@ -0,0 +1 @@
+{% for name, value in attrs.items %}{% if value is not False %} {{ name }}{% if value is not True %}="{{ value|stringformat:'s' }}"{% endif %}{% endif %}{% endfor %}

wagtail/admin/templates/wagtailadmin/tables/title_cell.html

@@ -1,7 +1,7 @@
 <td class="{% if column.classname %}{{ column.classname }} {% endif %}title">
     <div class="title-wrapper">
         {% if link_url %}
-            <a href="{{ link_url }}" {% if link_classname %}class="{{ link_classname }}"{% endif %}>{{ value }}</a>
+            <a {% include "wagtailadmin/tables/attrs.html" with attrs=link_attrs %}>{{ value }}</a>
         {% else %}
             {{ value }}
         {% endif %}

wagtail/admin/tests/ui/test_tables.py

@@ -94,6 +94,7 @@ class TestTable(TestCase):
                     "hostname",
                     url_name="wagtailsites:edit",
                     link_classname="choose-site",
+                    link_attrs={"data-chooser": "yes"},
                 ),
                 Column("site_name", label="Site name"),
             ],
@@ -112,7 +113,7 @@ class TestTable(TestCase):
                     <tr>
                         <td class="title">
                             <div class="title-wrapper">
-                                <a href="/admin/sites/%d/" class="choose-site">blog.example.com</a>
+                                <a href="/admin/sites/%d/" class="choose-site" data-chooser="yes">blog.example.com</a>
                             </div>
                         </td>
                         <td>My blog</td>
@@ -120,7 +121,7 @@ class TestTable(TestCase):
                     <tr>
                         <td class="title">
                             <div class="title-wrapper">
-                                <a href="/admin/sites/%d/" class="choose-site">gallery.example.com</a>
+                                <a href="/admin/sites/%d/" class="choose-site" data-chooser="yes">gallery.example.com</a>
                             </div>
                         </td>
                         <td>My gallery</td>

wagtail/admin/ui/tables.py

@@ -128,17 +128,28 @@ class TitleColumn(Column):
     cell_template_name = "wagtailadmin/tables/title_cell.html"
 
     def __init__(
-        self, name, url_name=None, get_url=None, link_classname=None, **kwargs
+        self,
+        name,
+        url_name=None,
+        get_url=None,
+        link_classname=None,
+        link_attrs=None,
+        **kwargs,
     ):
         super().__init__(name, **kwargs)
         self.url_name = url_name
         self._get_url_func = get_url
+        self.link_attrs = link_attrs or {}
         self.link_classname = link_classname
 
     def get_cell_context_data(self, instance, parent_context):
         context = super().get_cell_context_data(instance, parent_context)
-        context["link_url"] = self.get_link_url(instance, parent_context)
-        context["link_classname"] = self.link_classname
+        context["link_attrs"] = self.link_attrs.copy()
+        context["link_attrs"]["href"] = context["link_url"] = self.get_link_url(
+            instance, parent_context
+        )
+        if self.link_classname is not None:
+            context["link_attrs"]["class"] = self.link_classname
         return context
 
     def get_link_url(self, instance, parent_context):