add support for alwayson scripts for infotext API

modules/api/api.py

@@ -312,8 +312,13 @@ class Api:
                     script_args[script.args_from:script.args_to] = ui_default_values
         return script_args
 
-    def init_script_args(self, request, default_script_args, selectable_scripts, selectable_idx, script_runner):
+    def init_script_args(self, request, default_script_args, selectable_scripts, selectable_idx, script_runner, *, input_script_args=None):
         script_args = default_script_args.copy()
+
+        if input_script_args is not None:
+            for index, value in input_script_args.items():
+                script_args[index] = value
+
         # position 0 in script_arg is the idx+1 of the selectable script that is going to be run when using scripts.scripts_*2img.run()
         if selectable_scripts:
             script_args[selectable_scripts.args_from:selectable_scripts.args_to] = request.script_args
@@ -335,41 +340,58 @@ class Api:
                         script_args[alwayson_script.args_from + idx] = request.alwayson_scripts[alwayson_script_name]["args"][idx]
         return script_args
 
-    def apply_infotext(self, request, tabname):
+    def apply_infotext(self, request, tabname, *, script_runner=None, mentioned_script_args=None):
         if not request.infotext:
             return {}
 
+        possible_fields = generation_parameters_copypaste.paste_fields[tabname]["fields"]
         set_fields = request.model_dump(exclude_unset=True) if hasattr(request, "request") else request.dict(exclude_unset=True)  # pydantic v1/v2 have differenrt names for this
         params = generation_parameters_copypaste.parse_generation_parameters(request.infotext)
 
-        handled_fields = {}
-        for field in generation_parameters_copypaste.paste_fields[tabname]["fields"]:
-            if not field.api:
-                continue
-
-            if field.api in set_fields:
-                continue
-
+        def get_field_value(field, params):
             value = field.function(params) if field.function else params.get(field.label)
+            if value is None:
+                return None
+
+            if field.api in request.__fields__:
                 target_type = request.__fields__[field.api].type_
+            else:
+                target_type = type(field.component.value)
 
-            if value is None:
-                continue
+            if target_type == type(None):
+                return None
 
             if not isinstance(value, target_type):
                 value = target_type(value)
 
+            return value
+
+        for field in possible_fields:
+            if not field.api:
+                continue
+
+            if field.api in set_fields:
+                continue
+
+            value = get_field_value(field, params)
+            if value is not None:
                 setattr(request, field.api, value)
-            handled_fields[field.label] = 1
 
         if request.override_settings is None:
             request.override_settings = {}
 
-        overriden_settings = generation_parameters_copypaste.get_override_settings(params, skip_fields=handled_fields)
-        for infotext_text, setting_name, value in overriden_settings:
+        overriden_settings = generation_parameters_copypaste.get_override_settings(params)
+        for _, setting_name, value in overriden_settings:
             if setting_name not in request.override_settings:
                 request.override_settings[setting_name] = value
 
+        if script_runner is not None and mentioned_script_args is not None:
+            indexes = {v: i for i, v in enumerate(script_runner.inputs)}
+            script_fields = ((field, indexes[field.component]) for field in possible_fields if field.component in indexes)
+
+            for field, index in script_fields:
+                mentioned_script_args[index] = get_field_value(field, params)
+
         return params
 
     def text2imgapi(self, txt2imgreq: models.StableDiffusionTxt2ImgProcessingAPI):
@@ -380,7 +402,8 @@ class Api:
             script_runner.initialize_scripts(False)
             ui.create_ui()
 
-        self.apply_infotext(txt2imgreq, "txt2img")
+        infotext_script_args = {}
+        self.apply_infotext(txt2imgreq, "txt2img", script_runner=script_runner, mentioned_script_args=infotext_script_args)
 
         if not self.default_script_arg_txt2img:
             self.default_script_arg_txt2img = self.init_default_script_args(script_runner)
@@ -400,7 +423,7 @@ class Api:
         args.pop('alwayson_scripts', None)
         args.pop('infotext', None)
 
-        script_args = self.init_script_args(txt2imgreq, self.default_script_arg_txt2img, selectable_scripts, selectable_script_idx, script_runner)
+        script_args = self.init_script_args(txt2imgreq, self.default_script_arg_txt2img, selectable_scripts, selectable_script_idx, script_runner, input_script_args=infotext_script_args)
 
         send_images = args.pop('send_images', True)
         args.pop('save_images', None)