add UI for reordering callbacks

modules/shared_items.py

@@ -1,5 +1,8 @@
+import html
 import sys
 
+from modules import script_callbacks, scripts, ui_components
+from modules.options import OptionHTML, OptionInfo
 from modules.shared_cmd_options import cmd_opts
 
 
@@ -118,6 +121,45 @@ def ui_reorder_categories():
     yield "scripts"
 
 
+def callbacks_order_settings():
+    options = {
+        "sd_vae_explanation": OptionHTML("""
+    For categories below, callbacks added to dropdowns happen before others, in order listed.
+    """),
+
+    }
+
+    callback_options = {}
+
+    for category, _ in script_callbacks.enumerate_callbacks():
+        callback_options[category] = script_callbacks.ordered_callbacks(category, enable_user_sort=False)
+
+    for method_name in scripts.scripts_txt2img.callback_names:
+        callback_options["script_" + method_name] = scripts.scripts_txt2img.create_ordered_callbacks_list(method_name, enable_user_sort=False)
+
+    for method_name in scripts.scripts_img2img.callback_names:
+        callbacks = callback_options.get("script_" + method_name, [])
+
+        for addition in scripts.scripts_img2img.create_ordered_callbacks_list(method_name, enable_user_sort=False):
+            if any(x.name == addition.name for x in callbacks):
+                continue
+
+            callbacks.append(addition)
+
+        callback_options["script_" + method_name] = callbacks
+
+    for category, callbacks in callback_options.items():
+        if not callbacks:
+            continue
+
+        option_info = OptionInfo([], f"{category} callback priority", ui_components.DropdownMulti, {"choices": [x.name for x in callbacks]})
+        option_info.needs_restart()
+        option_info.html("<div class='info'>Default order: <ol>" + "".join(f"<li>{html.escape(x.name)}</li>\n" for x in callbacks) + "</ol></div>")
+        options['prioritized_callbacks_' + category] = option_info
+
+    return options
+
+
 class Shared(sys.modules[__name__].__class__):
     """
     this class is here to provide sd_model field as a property, so that it can be created and loaded on demand rather than