make PNG Info HTML style selectable

allowing user choose between new and old styles of HTML for PNG info page

modules/extras.py

@@ -44,11 +44,11 @@ def pnginfo_html_v1(geninfo, items):
 
 
 def pnginfo_html_v2(geninfo, items):
-    # raise ValueError
+
     prompt, negative_prompt, last_line = infotext_utils.split_infotext(geninfo)
     res = infotext_utils.parameters_to_dict(last_line)
     if not any([prompt, res, items]):
-        raise ValueError
+        return pnginfo_html_v1(geninfo, items)
 
     info_html = ''
     if prompt:
@@ -90,21 +90,25 @@ def pnginfo_html_v2(geninfo, items):
     return info_html
 
 
+pnginfo_html_map = {
+    'Default': pnginfo_html_v2,
+    'Parsed': pnginfo_html_v2,
+    'Raw': pnginfo_html_v1,
+}
+
+
 def run_pnginfo(image):
     if image is None:
         return '', '', ''
 
     geninfo, items = images.read_info_from_image(image)
-    try:
-        info = pnginfo_html_v2(geninfo, items)
-    except ValueError:
-        info = pnginfo_html_v1(geninfo, items)
+    info_html = pnginfo_html_map.get(shared.opts.png_info_html_style, pnginfo_html_v2)(geninfo, items)
 
-    if len(info) == 0:
+    if len(info_html) == 0:
         message = "Nothing found in the image."
-        info = f"<div><p>{message}<p></div>"
+        info_html = f"<div><p>{message}<p></div>"
 
-    return '', geninfo, info
+    return '', geninfo, info_html
 
 
 def create_config(ckpt_result, config_source, a, b, c):

modules/shared_items.py

@@ -74,6 +74,11 @@ def reload_hypernetworks():
     shared.hypernetworks = hypernetwork.list_hypernetworks(cmd_opts.hypernetwork_dir)
 
 
+def list_pnginfo_html_methods():
+    from modules.extras import pnginfo_html_map
+    return list(pnginfo_html_map)
+
+
 def get_infotext_names():
     from modules import infotext_utils, shared
     res = {}

modules/shared_options.py

@@ -366,7 +366,7 @@ It is displayed in UI below the image. To use infotext, paste it into the prompt
 <li>Discard: remove style text from prompt, keep styles dropdown as it is.</li>
 <li>Apply if any: remove style text from prompt; if any styles are found in prompt, put them into styles dropdown, otherwise keep it as it is.</li>
 </ul>"""),
-
+    "png_info_html_style": OptionInfo("Default", "PNG Info style", gr.Radio, lambda: {"choices": shared_items.list_pnginfo_html_methods()}).info('"Default -> Parsed"'),
 }))
 
 options_templates.update(options_section(('ui', "Live previews", "ui"), {