fix: macOS deep links after wxWidgets 3.3.2 upgrade (#13737)

Fix macOS orcaslicer:// deep links after wxWidgets 3.3.2 upgrade

Install an OrcaSlicer-owned kAEGetURL Apple Event handler from
on_init_inner(). The wxWidgets 3.3.2 handler registered in
applicationWillFinishLaunching: stopped delivering URL events to
GUI_App::MacOpenURL on macOS (#13119), so links from Printables /
Thingiverse opened a blank project instead of importing the model.

Registering our own handler late in startup is last-writer-wins on
NSAppleEventManager and routes back to the existing MacOpenURL ->
start_download path, restoring the pre-upgrade behavior without
touching wxWidgets.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

src/slic3r/CMakeLists.txt

@@ -687,6 +687,8 @@ if (APPLE)
             GUI/Mouse3DHandlerMac.mm
             GUI/InstanceCheckMac.mm
             GUI/InstanceCheckMac.h
+            GUI/DeepLinkHandlerMac.mm
+            GUI/DeepLinkHandlerMac.h
             GUI/GUI_UtilsMac.mm
             GUI/wxMediaCtrl2.mm
             GUI/wxMediaCtrl2.h

src/slic3r/GUI/DeepLinkHandlerMac.h

@@ -0,0 +1,16 @@
+#ifndef slic3r_GUI_DeepLinkHandlerMac_h_
+#define slic3r_GUI_DeepLinkHandlerMac_h_
+
+namespace Slic3r {
+namespace GUI {
+
+// Re-registers a Cocoa Apple Event handler for kInternetEventClass/kAEGetURL.
+// Works around a regression observed after upgrading to wxWidgets 3.3.2 on
+// macOS Tahoe (#13119) where wxWidgets' built-in handler is registered but
+// never fires for orcaslicer:// deep links.
+void register_mac_deep_link_handler();
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif

src/slic3r/GUI/DeepLinkHandlerMac.mm

@@ -0,0 +1,41 @@
+#import <AppKit/AppKit.h>
+#import <Foundation/Foundation.h>
+
+#include <boost/log/trivial.hpp>
+
+#include "DeepLinkHandlerMac.h"
+#include "GUI_App.hpp"
+
+@interface OrcaDeepLinkHandler : NSObject
+- (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)reply;
+@end
+
+@implementation OrcaDeepLinkHandler
+- (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)reply
+{
+    NSString *url = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
+    if (url == nil || url.length == 0)
+        return;
+    BOOST_LOG_TRIVIAL(info) << "Deep link received: " << [url UTF8String];
+    Slic3r::GUI::wxGetApp().MacOpenURL(wxString::FromUTF8([url UTF8String]));
+}
+@end
+
+namespace Slic3r {
+namespace GUI {
+
+void register_mac_deep_link_handler()
+{
+    static OrcaDeepLinkHandler *handler = nil;
+    if (handler == nil)
+        handler = [[OrcaDeepLinkHandler alloc] init];
+
+    [[NSAppleEventManager sharedAppleEventManager]
+        setEventHandler:handler
+            andSelector:@selector(handleGetURLEvent:withReplyEvent:)
+          forEventClass:kInternetEventClass
+             andEventID:kAEGetURL];
+}
+
+} // namespace GUI
+} // namespace Slic3r

src/slic3r/GUI/GUI_App.cpp

@@ -100,6 +100,9 @@
 #include "Mouse3DController.hpp"
 #include "RemovableDriveManager.hpp"
 #include "InstanceCheck.hpp"
+#ifdef __APPLE__
+#include "DeepLinkHandlerMac.h"
+#endif
 #include "NotificationManager.hpp"
 #include "UnsavedChangesDialog.hpp"
 #include "SavePresetDialog.hpp"
@@ -2547,6 +2550,12 @@ std::string get_system_info()
 bool GUI_App::on_init_inner()
 {
     wxLog::SetActiveTarget(new wxBoostLog());
+
+#ifdef __APPLE__
+    // Override wxWidgets' kAEGetURL handler so orcaslicer:// deep links keep
+    // working after the wxWidgets 3.3.2 upgrade on macOS (#13119).
+    register_mac_deep_link_handler();
+#endif
 #if BBL_RELEASE_TO_PUBLIC
     wxLog::SetLogLevel(wxLOG_Message);
 #endif