UI state recovery

app.py

@@ -167,6 +167,8 @@ def export_history(h, s):
     pass
 
 with gr.Blocks(delete_cache=(86400, 86400)) as demo:
+    settings_state = gr.BrowserState({})
+    
     gr.Markdown("# Amazon™️ Bedrock™️ Chat™️ (Nils' Version™️) feat. Mistral™️ AI & Anthropic™️ Claude™️")
 
     with gr.Accordion("Startup"):
@@ -192,6 +194,46 @@ with gr.Blocks(delete_cache=(86400, 86400)) as demo:
         dl_settings_button = gr.Button("Download Settings")
         ul_settings_button = gr.Button("Upload Settings")
 
+        @demo.load(inputs=[settings_state], 
+                outputs=[aws_access, aws_secret, aws_token, system_prompt, 
+                        temp, max_tokens, model, region, python_use])
+        def load_from_browser_storage(saved_values):
+            if not saved_values:
+                return (aws_access.value, aws_secret.value, aws_token.value, 
+                        system_prompt.value, temp.value, max_tokens.value,
+                        model.value, region.value, python_use.value)
+            return (saved_values.get('aws_access', aws_access.value), 
+                    saved_values.get('aws_secret', aws_secret.value), 
+                    saved_values.get('aws_token', aws_token.value), 
+                    saved_values.get('system_prompt', system_prompt.value),
+                    saved_values.get('temp', temp.value), 
+                    saved_values.get('max_tokens', max_tokens.value),
+                    saved_values.get('model', model.value), 
+                    saved_values.get('region', region.value),
+                    saved_values.get('python_use', python_use.value))
+
+        @gr.on(
+            [aws_access.change, aws_secret.change, aws_token.change, 
+             system_prompt.change, temp.change, max_tokens.change,
+             model.change, region.change, python_use.change],
+            inputs=[aws_access, aws_secret, aws_token, system_prompt, 
+                    temp, max_tokens, model, region, python_use],
+            outputs=[settings_state]
+        )
+        def save_to_browser_storage(acc, sec, tok, prompt, temperature, 
+                                tokens, mdl, reg, py_use):
+            return {
+                'aws_access': acc,
+                'aws_secret': sec,
+                'aws_token': tok,
+                'system_prompt': prompt,
+                'temp': temperature,
+                'max_tokens': tokens,
+                'model': mdl,
+                'region': reg,
+                'python_use': py_use
+            }
+
         load_button.click(load_settings, js="""  
             () => {  
                 let elems = ['#aws_access textarea', '#aws_secret textarea', '#aws_token textarea', '#system_prompt textarea', '#temp input', '#max_tokens input', '#model', '#region'];