fix

app.py

@@ -5,6 +5,7 @@ Gradio Web Interface for City Map Poster Generator
 
 import os
 import json
+import tempfile
 
 # Monkey-patch gradio_client bug before importing gradio
 # Fix for: TypeError: argument of type 'bool' is not iterable
@@ -253,7 +254,10 @@ def generate_poster(
 
     # Generate output filename (using English/Slugified names)
     en_city = translate(selected_location, "en")
-    output_file = cmp.generate_output_filename(en_city, theme_name, output_format)
+    temp_dir = tempfile.gettempdir()
+    output_file = cmp.generate_output_filename(
+        en_city, theme_name, output_format, directory=temp_dir
+    )
 
     try:
         # Wrap the generator to yield status updates and final result
@@ -289,17 +293,17 @@ def generate_poster(
                 elif "Done" in status:
                     status_display = "完成！"
 
-            yield None, f"⏳ {status_display}"
+            yield None, f"⏳ {status_display}", None
 
         progress(1.0, desc="完成!")
 
-        yield output_file, f"✅ 海报生成成功！保存至: {output_file}"
+        yield output_file, f"✅ 海报生成成功！保存至: {output_file}", output_file
 
     except Exception as e:
         import traceback
 
         traceback.print_exc()
-        yield None, f"❌ 生成失败: {str(e)}"
+        yield None, f"❌ 生成失败: {str(e)}", None
 
 
 def update_provinces(country, lang="en"):
@@ -532,6 +536,7 @@ def create_interface():
                 output_status = gr.Textbox(label="状态", interactive=False)
 
                 download_btn = gr.DownloadButton(label="📥 下载海报", visible=False)
+                poster_state = gr.State()
 
         # --- Event Handlers ---
 
@@ -677,10 +682,10 @@ def create_interface():
                 lang_radio,
                 layers_checkbox,
             ],
-            outputs=[output_image, output_status],
+            outputs=[output_image, output_status, poster_state],
         ).then(
             fn=on_generate_complete,
-            inputs=[output_image, output_status],
+            inputs=[poster_state, output_status],
             outputs=[output_image, output_status, download_btn],
         )
 

create_map_poster.py

@@ -43,18 +43,18 @@ def load_fonts():
 FONTS = load_fonts()
 
 
-def generate_output_filename(city, theme_name, output_format):
+def generate_output_filename(city, theme_name, output_format, directory=POSTERS_DIR):
     """
     Generate unique output filename with city, theme, and datetime.
     """
-    if not os.path.exists(POSTERS_DIR):
-        os.makedirs(POSTERS_DIR)
+    if not os.path.exists(directory):
+        os.makedirs(directory)
 
     timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
     city_slug = city.lower().replace(" ", "_")
     ext = output_format.lower()
     filename = f"{city_slug}_{theme_name}_{timestamp}.{ext}"
-    return os.path.join(POSTERS_DIR, filename)
+    return os.path.join(directory, filename)
 
 
 def get_available_themes():