feat(scheme): add userdata support

Author: Curve

include/saucer/scheme.h

@@ -49,7 +49,7 @@ extern "C"
     SAUCER_EXPORT void saucer_scheme_executor_reject(saucer_scheme_executor *, saucer_scheme_error);
     SAUCER_EXPORT void saucer_scheme_executor_accept(saucer_scheme_executor *, saucer_scheme_response *);
 
-    typedef void (*saucer_scheme_handler)(saucer_scheme_request *, saucer_scheme_executor *);
+    typedef void (*saucer_scheme_handler)(saucer_scheme_request *, saucer_scheme_executor *, void *);
 
 #ifdef __cplusplus
 }

include/saucer/webview.h

@@ -148,7 +148,8 @@ extern "C"
     SAUCER_EXPORT void saucer_webview_uninject_all(saucer_webview *);
     SAUCER_EXPORT void saucer_webview_uninject(saucer_webview *, size_t);
 
-    SAUCER_EXPORT void saucer_webview_handle_scheme(saucer_webview *, const char *, saucer_scheme_handler);
+    SAUCER_EXPORT void saucer_webview_handle_scheme(saucer_webview *, const char *, saucer_scheme_handler,
+                                                    void *userdata);
     SAUCER_EXPORT void saucer_webview_remove_scheme(saucer_webview *, const char *);
 
     SAUCER_EXPORT size_t saucer_webview_on(saucer_webview *, saucer_webview_event, void *callback, bool clearable,

src/webview.cpp

@@ -299,11 +299,12 @@ extern "C"
         (*webview)->uninject(id);
     }
 
-    void saucer_webview_handle_scheme(saucer_webview *webview, const char *scheme, saucer_scheme_handler handler)
+    void saucer_webview_handle_scheme(saucer_webview *webview, const char *scheme, saucer_scheme_handler handler,
+                                      void *userdata)
     {
         (*webview)->handle_scheme(
-            scheme, [handler](saucer::scheme::request request, saucer::scheme::executor exec)
-            { handler(saucer_scheme_request{std::move(request)}, saucer_scheme_executor{std::move(exec)}); });
+            scheme, [handler, userdata](saucer::scheme::request request, saucer::scheme::executor exec)
+            { handler(saucer_scheme_request{std::move(request)}, saucer_scheme_executor{std::move(exec)}, userdata); });
     }
 
     void saucer_webview_remove_scheme(saucer_webview *webview, const char *scheme)