added callback for creating new settings in extensions

modules/script_callbacks.py

@@ -1,6 +1,7 @@
 
 callbacks_model_loaded = []
 callbacks_ui_tabs = []
+callbacks_ui_settings = []
 
 
 def clear_callbacks():
@@ -22,6 +23,11 @@ def ui_tabs_callback():
     return res
 
 
+def ui_settings_callback():
+    for callback in callbacks_ui_settings:
+        callback()
+
+
 def on_model_loaded(callback):
     """register a function to be called when the stable diffusion model is created; the model is
     passed as an argument"""
@@ -40,3 +46,8 @@ def on_ui_tabs(callback):
     """
     callbacks_ui_tabs.append(callback)
 
+
+def on_ui_settings(callback):
+    """register a function to be called before UI  settingsare populated; add your settings
+    by using shared.opts.add_option(shared.OptionInfo(...)) """
+    callbacks_ui_settings.append(callback)

modules/shared.py

@@ -165,13 +165,13 @@ def realesrgan_models_names():
 
 
 class OptionInfo:
-    def __init__(self, default=None, label="", component=None, component_args=None, onchange=None, show_on_main_page=False, refresh=None):
+    def __init__(self, default=None, label="", component=None, component_args=None, onchange=None, section=None, refresh=None):
         self.default = default
         self.label = label
         self.component = component
         self.component_args = component_args
         self.onchange = onchange
-        self.section = None
+        self.section = section
         self.refresh = refresh
 
 
@@ -327,6 +327,7 @@ options_templates.update(options_section(('images-history', "Images Browser"), {
 
 }))
 
+
 class Options:
     data = None
     data_labels = options_templates
@@ -389,6 +390,20 @@ class Options:
         d = {k: self.data.get(k, self.data_labels.get(k).default) for k in self.data_labels.keys()}
         return json.dumps(d)
 
+    def add_option(self, key, info):
+        self.data_labels[key] = info
+
+    def reorder(self):
+        """reorder settings so that all items related to section always go together"""
+
+        section_ids = {}
+        settings_items = self.data_labels.items()
+        for k, item in settings_items:
+            if item.section not in section_ids:
+                section_ids[item.section] = len(section_ids)
+
+        self.data_labels = {k: v for k, v in sorted(settings_items, key=lambda x: section_ids[x[1].section])}
+
 
 opts = Options()
 if os.path.exists(config_filename):

modules/ui.py

@@ -1461,6 +1461,9 @@ def create_ui(wrap_gradio_gpu_call):
     components = []
     component_dict = {}
 
+    script_callbacks.ui_settings_callback()
+    opts.reorder()
+
     def open_folder(f):
         if not os.path.exists(f):
             print(f'Folder "{f}" does not exist. After you create an image, the folder will be created.')
@@ -1564,7 +1567,8 @@ Requested path was: {f}
 
                     previous_section = item.section
 
-                    gr.HTML(elem_id="settings_header_text_{}".format(item.section[0]), value='<h1 class="gr-button-lg">{}</h1>'.format(item.section[1]))
+                    elem_id, text = item.section
+                    gr.HTML(elem_id="settings_header_text_{}".format(elem_id), value='<h1 class="gr-button-lg">{}</h1>'.format(text))
 
                 if k in quicksettings_names:
                     quicksettings_list.append((i, k, item))