[fix] fix blank connection status popup by handling Gathering state

src/gui/assets/localization/localization_data.h

@@ -167,6 +167,8 @@ struct TranslationRow {
     u8"P2P отключено")                                                         \
   X(p2p_connecting, u8"正在建立对等连接...", "P2P Connecting ...",             \
     u8"Подключение P2P...")                                                    \
+  X(p2p_gathering, u8"正在收集候选地址...", "Gathering candidates ...",         \
+    u8"Сбор кандидатов...")                                                    \
   X(receiving_screen, u8"画面接收中...", "Receiving screen...",                \
     u8"Получение изображения...")                                              \
   X(p2p_failed, u8"对等连接失败", "P2P Failed", u8"Сбой P2P")                  \

src/gui/windows/connection_status_window.cpp

@@ -48,6 +48,22 @@ bool Render::ConnectionStatusWindow(
       }
       ret_flag = true;
     }
+  } else if (ConnectionStatus::Gathering == props->connection_status_) {
+    text = localization::p2p_gathering[localization_language_index_];
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
+    // cancel
+    if (ImGui::Button(
+            localization::cancel[localization_language_index_].c_str()) ||
+        ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+      show_connection_status_window_ = false;
+      re_enter_remote_id_ = true;
+      LOG_INFO("User cancelled connecting to [{}]", props->remote_id_);
+      if (props->peer_) {
+        LeaveConnection(props->peer_, props->remote_id_.c_str());
+      }
+      ret_flag = true;
+    }
   } else if (ConnectionStatus::Connected == props->connection_status_) {
     text = localization::p2p_connected[localization_language_index_];
     ImGui::SetCursorPosX(connection_status_window_width * 0.43f);