Add submit_button_active_label to create/edit views

wagtail/admin/templates/wagtailadmin/generic/form.html

@@ -63,6 +63,7 @@
                                     data-action="w-progress#activate"
                                     data-w-kbd-key-value="mod+s"
                                     data-w-kbd-scope-value="global"
+                                    data-w-progress-active-value="{{ submit_button_active_label }}"
                                 >
                                     {% icon name="spinner" %}
                                     <em data-w-progress-target="label">{{ submit_button_label }}</em>

wagtail/admin/views/account.py

@@ -232,6 +232,7 @@ class AccountView(WagtailAdminTemplateMixin, TemplateView):
     page_title = gettext_lazy("Account")
     header_icon = "user"
     submit_button_label = gettext_lazy("Save")
+    submit_button_active_label = gettext_lazy("Saving…")
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
@@ -241,6 +242,7 @@ class AccountView(WagtailAdminTemplateMixin, TemplateView):
         context["media"] = self.get_media(panels)
         context["user"] = self.request.user
         context["submit_button_label"] = self.submit_button_label
+        context["submit_button_active_label"] = self.submit_button_active_label
         return context
 
     def get_panels(self):

wagtail/admin/views/generic/models.py

@@ -443,6 +443,7 @@ class CreateView(
         "The %(model_name)s could not be created due to errors."
     )
     submit_button_label = gettext_lazy("Create")
+    submit_button_active_label = gettext_lazy("Creating…")
     actions = ["create"]
 
     def setup(self, request, *args, **kwargs):
@@ -543,6 +544,7 @@ class CreateView(
         side_panels = self.get_side_panels()
         context["action_url"] = self.add_url
         context["submit_button_label"] = self.submit_button_label
+        context["submit_button_active_label"] = self.submit_button_active_label
         context["side_panels"] = side_panels
         context["media"] += side_panels.media
         context["has_unsaved_changes"] = self.has_unsaved_changes
@@ -668,6 +670,7 @@ class EditView(
     success_message = gettext_lazy("%(model_name)s '%(object)s' updated.")
     error_message = gettext_lazy("The %(model_name)s could not be saved due to errors.")
     submit_button_label = gettext_lazy("Save")
+    submit_button_active_label = gettext_lazy("Saving…")
     actions = ["edit"]
 
     def setup(self, request, *args, **kwargs):
@@ -904,6 +907,7 @@ class EditView(
         context["side_panels"] = side_panels
         context["media"] += side_panels.media
         context["submit_button_label"] = self.submit_button_label
+        context["submit_button_active_label"] = self.submit_button_active_label
         context["has_unsaved_changes"] = self.has_unsaved_changes
         context["can_delete"] = self.can_delete
         if context["can_delete"]: