From 3f1a2a71bda5baf551858623f0b1cc033685c887 Mon Sep 17 00:00:00 2001
From: SoftFever <softfeverever@gmail.com>
Date: Wed, 3 Jun 2026 20:14:29 +0800
Subject: [PATCH] feat(automation): implement WxUiBackend::open_files via
 Plater::load_files

---
 src/slic3r/GUI/Automation/WxUiBackend.cpp | 22 ++++++++++++++++++++++
 src/slic3r/GUI/Automation/WxUiBackend.hpp |  1 +
 2 files changed, 23 insertions(+)

diff --git a/src/slic3r/GUI/Automation/WxUiBackend.cpp b/src/slic3r/GUI/Automation/WxUiBackend.cpp
index 68ff154b88..a8d4e81b55 100644
--- a/src/slic3r/GUI/Automation/WxUiBackend.cpp
+++ b/src/slic3r/GUI/Automation/WxUiBackend.cpp
@@ -303,4 +303,26 @@ PngImage WxUiBackend::screenshot_window(const UiNode* target) {
     });
 }
 
+int WxUiBackend::open_files(const std::vector<std::string>& paths) {
+    return run_on_gui(m_gui_timeout_ms, [&]() -> int {
+        Plater* plater = wxGetApp().plater();
+        if (plater == nullptr)
+            throw AutomationError(kErrLoadFailed, "no plater to load into");
+        // Default strategy matches drag-drop / Plater::load_files's own default: it
+        // routes .3mf as a project and meshes as models based on file content, so no
+        // as_project flag is needed in v1. ask_multi=false: never prompt.
+        const LoadStrategy strategy = LoadStrategy::LoadModel | LoadStrategy::LoadConfig;
+        std::vector<size_t> loaded;
+        try {
+            loaded = plater->load_files(paths, strategy, /*ask_multi=*/false);
+        } catch (const std::exception& e) {
+            throw AutomationError(kErrLoadFailed,
+                                  std::string("load_files failed: ") + e.what());
+        }
+        if (loaded.empty())
+            throw AutomationError(kErrLoadFailed, "load_files loaded nothing");
+        return static_cast<int>(loaded.size());
+    });
+}
+
 }}} // namespace Slic3r::GUI::Automation
diff --git a/src/slic3r/GUI/Automation/WxUiBackend.hpp b/src/slic3r/GUI/Automation/WxUiBackend.hpp
index 6239cfbfae..39f90af6eb 100644
--- a/src/slic3r/GUI/Automation/WxUiBackend.hpp
+++ b/src/slic3r/GUI/Automation/WxUiBackend.hpp
@@ -19,6 +19,7 @@ public:
     bool     type_text(const std::string& text) override;
     bool     send_keys(const std::vector<KeyChord>& chords) override;
     PngImage screenshot_window(const UiNode* target) override;
+    int      open_files(const std::vector<std::string>& paths) override;
 
 private:
     int m_gui_timeout_ms;