修改AI生图相关日志信息

app/views/panels/ai_image_panel.py

@@ -30,6 +30,9 @@ def create_ai_image_panel(self):
     self._ai_image_requesting = False
     self._ai_image_progress_job = None
     self._ai_image_progress_phase = 0
+    self._ai_image_cancel_event = None
+    self._ai_image_request_seq = 0
+    self._ai_image_active_seq = 0
 
     container = ttk.Frame(frame, padding=10)
     container.pack(fill=tk.BOTH, expand=True)
@@ -170,6 +173,12 @@ def create_ai_image_panel(self):
         command=lambda: _start_new_session(self),
     )
     self.ai_image_new_session_btn.pack(side=tk.RIGHT, padx=(0, 6))
+    self.ai_image_stop_btn = ttk.Button(
+        send_row, text="停止", bootstyle="danger-outline", width=10,
+        command=lambda: _stop_request(self),
+    )
+    self.ai_image_stop_btn.pack(side=tk.RIGHT, padx=(0, 6))
+    self.ai_image_stop_btn.configure(state=tk.DISABLED)
 
     # 注册面板
     self.register_panel("ai_image", frame, None, "ai_image_visible")
@@ -386,25 +395,35 @@ def _send_prompt(self):
         messagebox.showinfo("提示", "请输入内容")
         return
 
+    self._ai_image_request_seq += 1
+    req_seq = self._ai_image_request_seq
+    self._ai_image_active_seq = req_seq
+    self._ai_image_cancel_event = threading.Event()
     _set_requesting(self, True)
     is_remote_url = _svc.is_remote_image_url(prompt)
     self.ai_image_status_var.set("下载中…" if is_remote_url else "后端处理中…")
 
     def _success(record):
-        self.root.after(0, lambda: _on_request_done(self, record, None))
+        self.root.after(0, lambda: _on_request_done(self, record, None, req_seq))
 
     def _error(exc):
-        self.root.after(0, lambda: _on_request_done(self, None, exc))
+        self.root.after(0, lambda: _on_request_done(self, None, exc, req_seq))
 
     if is_remote_url:
         _svc.import_image_from_url_async(
             prompt,
             on_success=_success,
             on_error=_error,
+            cancel_event=self._ai_image_cancel_event,
         )
         return
 
-    _svc.request_image_async(prompt, on_success=_success, on_error=_error)
+    _svc.request_image_async(
+        prompt,
+        on_success=_success,
+        on_error=_error,
+        cancel_event=self._ai_image_cancel_event,
+    )
 
 
 def _set_requesting(self, flag: bool):
@@ -412,6 +431,7 @@ def _set_requesting(self, flag: bool):
     try:
         self.ai_image_send_btn.configure(state=tk.DISABLED if flag else tk.NORMAL)
         self.ai_image_new_session_btn.configure(state=tk.DISABLED if flag else tk.NORMAL)
+        self.ai_image_stop_btn.configure(state=tk.NORMAL if flag else tk.DISABLED)
     except Exception:
         pass
     if flag:
@@ -432,7 +452,12 @@ def _set_requesting(self, flag: bool):
             pass
 
 
-def _on_request_done(self, record, exc):
+def _on_request_done(self, record, exc, req_seq):
+    # 旧请求回调（例如用户已点击停止后）直接忽略
+    if req_seq != getattr(self, "_ai_image_active_seq", 0):
+        return
+    self._ai_image_active_seq = 0
+    self._ai_image_cancel_event = None
     _set_requesting(self, False)
     if exc is not None:
         self.ai_image_status_var.set(f"失败: {exc}")
@@ -455,6 +480,18 @@ def _on_request_done(self, record, exc):
                 break
 
 
+def _stop_request(self):
+    """停止当前生成任务（协作取消：屏蔽后续回调并恢复 UI）。"""
+    if not getattr(self, "_ai_image_requesting", False):
+        return
+    event = getattr(self, "_ai_image_cancel_event", None)
+    if event is not None:
+        event.set()
+    self._ai_image_active_seq = 0
+    _set_requesting(self, False)
+    self.ai_image_status_var.set("已停止生成")
+
+
 def _save_current(self):
     rec = getattr(self, "ai_image_current", None)
     if rec is None: