From 84faac2dd474895ebe1ea276dea1f05c73f5169e Mon Sep 17 00:00:00 2001
From: SoftFever <softfeverever@gmail.com>
Date: Mon, 2 Feb 2026 23:48:22 +0800
Subject: [PATCH] fix an issue the bbl printer not working

---
 src/slic3r/GUI/GUI_App.cpp       | 14 +++++++++-----
 src/slic3r/GUI/Plater.cpp        |  2 +-
 src/slic3r/GUI/WebViewDialog.cpp | 28 ++++++++++++++--------------
 3 files changed, 24 insertions(+), 20 deletions(-)

diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index a7a0d49fa0..1a3db613f9 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -3482,12 +3482,16 @@ void GUI_App::switch_printer_agent()
     }
 
     // Read printer_agent from config, falling back to default
-    const DynamicPrintConfig& config = preset_bundle->printers.get_edited_preset().config;
     std::string effective_agent_id = ORCA_PRINTER_AGENT_ID;
-    if (config.has("printer_agent")) {
-        const std::string& value = config.option<ConfigOptionString>("printer_agent")->value;
-        if (!value.empty())
-            effective_agent_id = value;
+    if (preset_bundle->is_bbl_vendor()) {
+        effective_agent_id = BBL_PRINTER_AGENT_ID;
+    } else {
+        const DynamicPrintConfig& config = preset_bundle->printers.get_edited_preset().config;
+        if (config.has("printer_agent")) {
+            const std::string& value = config.option<ConfigOptionString>("printer_agent")->value;
+            if (!value.empty())
+                effective_agent_id = value;
+        }
     }
 
     // Check if agent is registered
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index c1691296dc..7b944f414c 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -9826,7 +9826,7 @@ void Plater::priv::on_tab_selection_changing(wxBookCtrlEvent& e)
     update_sidebar();
     int old_sel = e.GetOldSelection();
     if (wxGetApp().preset_bundle && wxGetApp().preset_bundle->use_bbl_device_tab() && new_sel == MainFrame::tpMonitor) {
-        if (!wxGetApp().getAgent()) {
+        if (!Slic3r::NetworkAgent::is_network_module_loaded()) {
             e.Veto();
             BOOST_LOG_TRIVIAL(info) << boost::format("skipped tab switch from %1% to %2%, lack of network plugins") % old_sel % new_sel;
             if (q) {
diff --git a/src/slic3r/GUI/WebViewDialog.cpp b/src/slic3r/GUI/WebViewDialog.cpp
index 5d9301b7ca..46dddf3812 100644
--- a/src/slic3r/GUI/WebViewDialog.cpp
+++ b/src/slic3r/GUI/WebViewDialog.cpp
@@ -487,24 +487,24 @@ void WebViewPanel::SendLoginInfo()
 
 void WebViewPanel::ShowNetpluginTip()
 {
-    // Install Network Plugin
-    const auto bblnetwork_enabled =wxGetApp().app_config->get_bool("installed_networking");
-    if(!bblnetwork_enabled) {
-        return;
+    const auto bblnetwork_enabled = wxGetApp().app_config->get_bool("installed_networking");
+
+    // Show tip if: plugin is enabled but incompatible, OR BBL printer selected but plugin not loaded
+    bool need_show = false;
+    if (bblnetwork_enabled) {
+        need_show = !wxGetApp().is_compatibility_version();
+    } else if (wxGetApp().preset_bundle && wxGetApp().preset_bundle->is_bbl_vendor()) {
+        need_show = true;
     }
-    bool        bValid       = wxGetApp().is_compatibility_version();
 
-    int nShow = 0;
-    if (!bValid) nShow = 1;
+    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": need_show=%1%") % need_show;
 
-    BOOST_LOG_TRIVIAL(info) << __FUNCTION__<< boost::format(": bValid=%1%, nShow=%2%")%bValid %nShow;
+    json res = json::object();
+    res["command"] = "network_plugin_installtip";
+    res["sequence_id"] = "10001";
+    res["show"] = need_show ? 1 : 0;
 
-    json m_Res           = json::object();
-    m_Res["command"]     = "network_plugin_installtip";
-    m_Res["sequence_id"] = "10001";
-    m_Res["show"]        = nShow;
-
-    wxString strJS = wxString::Format("window.postMessage(%s)", m_Res.dump(-1, ' ', false, json::error_handler_t::ignore));
+    wxString strJS = wxString::Format("window.postMessage(%s)", res.dump(-1, ' ', false, json::error_handler_t::ignore));
 
     RunScript(strJS);
 }