Fixed an update of Searcher on UI recreation.

Bug was caused by fa86a3d0, when instance of searcher was moved to GuiApp
and as result wasn't recreate on UI recreation.
Searcher instance is in MainFrame now.

src/slic3r/GUI/GUI_App.cpp

@@ -1099,7 +1099,7 @@ void GUI_App::check_and_update_searcher(ConfigOptionMode mode /*= comExpert*/)
         if (tab->supports_printer_technology(print_tech))
             search_inputs.emplace_back(Search::InputInfo{ tab->get_config(), tab->type() });
 
-    m_searcher.check_and_update(print_tech, mode, search_inputs);
+    m_searcher->check_and_update(print_tech, mode, search_inputs);
 }
 
 void GUI_App::jump_to_option(const std::string& opt_key, Preset::Type type, const std::wstring& category)
@@ -1109,7 +1109,7 @@ void GUI_App::jump_to_option(const std::string& opt_key, Preset::Type type, cons
 
 void GUI_App::jump_to_option(size_t selected)
 {
-    const Search::Option& opt = m_searcher.get_option(selected);
+    const Search::Option& opt = m_searcher->get_option(selected);
     if (opt.type == Preset::TYPE_PREFERENCES)
         open_preferences(opt.opt_key(), into_u8(opt.group));
     else
@@ -1128,12 +1128,12 @@ void GUI_App::jump_to_option(const std::string& composite_key)
 
             // Regularly searcher is sorted in respect to the options labels,
             // so resort searcher before get an option
-            m_searcher.sort_options_by_key();
-            const Search::Option& opt = m_searcher.get_option(opt_key, tab->type());
+            m_searcher->sort_options_by_key();
+            const Search::Option& opt = m_searcher->get_option(opt_key, tab->type());
             tab->activate_option(opt_key, into_u8(opt.category));
 
             // Revert sort of searcher back
-            m_searcher.sort_options_by_label();
+            m_searcher->sort_options_by_label();
             break;
         }
     }
@@ -1142,7 +1142,7 @@ void GUI_App::jump_to_option(const std::string& composite_key)
 void GUI_App::show_search_dialog()
 {
     check_and_update_searcher(get_mode());
-    m_searcher.show_dialog();
+    m_searcher->show_dialog();
 }
 
 static int get_app_font_pt_size(const AppConfig* app_config)

src/slic3r/GUI/GUI_App.hpp

@@ -12,7 +12,7 @@
 #include "ConfigWizard.hpp"
 #include "OpenGLManager.hpp"
 #include "libslic3r/Preset.hpp"
-#include "Search.hpp"
+#include "I18N.hpp"
 
 #include <wx/app.h>
 #include <wx/colour.h>
@@ -40,6 +40,10 @@ class PrintHostJobQueue;
 class Model;
 class AppUpdater;
 
+namespace Search {
+    class OptionsSearcher;
+}
+
 namespace GUI{
 
 class RemovableDriveManager;
@@ -176,7 +180,7 @@ private:
     std::string m_instance_hash_string;
 	size_t m_instance_hash_int;
 
-    Search::OptionsSearcher m_searcher;
+    Search::OptionsSearcher* m_searcher{ nullptr };
 
 public:
     bool            OnInit() override;
@@ -191,7 +195,8 @@ public:
     bool is_recreating_gui() const { return m_is_recreating_gui; }
     std::string logo_name() const { return is_editor() ? "PrusaSlicer" : "PrusaSlicer-gcodeviewer"; }
 
-    Search::OptionsSearcher& searcher() noexcept { return m_searcher; }
+    Search::OptionsSearcher& searcher() noexcept { return *m_searcher; }
+    void                     set_searcher(Search::OptionsSearcher* searcher) { m_searcher = searcher; }
     void                     check_and_update_searcher(ConfigOptionMode mode = comExpert);
     void                     jump_to_option(size_t selected);
     void                     jump_to_option(const std::string& opt_key, Preset::Type type, const std::wstring& category);

src/slic3r/GUI/MainFrame.cpp

@@ -166,6 +166,8 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
     // Load the icon either from the exe, or from the ico file.
     SetIcon(main_frame_icon(wxGetApp().get_app_mode()));
 
+    wxGetApp().set_searcher(&m_searcher);
+
     // initialize tabpanel and menubar
     init_tabpanel();
     if (wxGetApp().is_gcode_viewer())

src/slic3r/GUI/MainFrame.hpp

@@ -27,6 +27,7 @@
 #include "GUI_Utils.hpp"
 #include "Event.hpp"
 #include "UnsavedChangesDialog.hpp"
+#include "Search.hpp"
 
 class wxBookCtrlBase;
 class wxProgressDialog;
@@ -93,6 +94,7 @@ class MainFrame : public DPIFrame
     wxSizer*    m_main_sizer{ nullptr };
 
     size_t      m_last_selected_tab;
+    Search::OptionsSearcher m_searcher;
 
     std::string     get_base_name(const wxString &full_name, const char *extension = nullptr) const;
     std::string     get_dir_name(const wxString &full_name) const;

src/slic3r/GUI/Preferences.cpp

@@ -20,6 +20,7 @@
 #include "OG_CustomCtrl.hpp"
 #include "GLCanvas3D.hpp"
 #include "ConfigWizard.hpp"
+#include "Search.hpp"
 
 #include "Widgets/SpinInput.hpp"