Expose oc_surface_bring_to_front/send_to_back() to orca apps, and always bring debug layer to front when displaying it

src/app/osx_app.m

@@ -1750,6 +1750,9 @@ void oc_osx_update_layers(oc_window_data* window)
 
 void oc_osx_surface_bring_to_front(oc_surface_data* surface)
 {
+    dispatch_block_t block = ^{
+      @autoreleasepool
+      {
           oc_window_data* window = oc_window_ptr_from_handle(surface->layer.window);
           if(window)
           {
@@ -1757,10 +1760,24 @@ void oc_osx_surface_bring_to_front(oc_surface_data* surface)
               oc_list_push_back(&window->osx.layers, &surface->layer.listElt);
               oc_osx_update_layers(window);
           }
+      }
+    };
+
+    if([NSThread isMainThread])
+    {
+        block();
+    }
+    else
+    {
+        dispatch_sync(dispatch_get_main_queue(), block);
+    }
 }
 
 void oc_osx_surface_send_to_back(oc_surface_data* surface)
 {
+    dispatch_block_t block = ^{
+      @autoreleasepool
+      {
           oc_window_data* window = oc_window_ptr_from_handle(surface->layer.window);
           if(window)
           {
@@ -1768,6 +1785,17 @@ void oc_osx_surface_send_to_back(oc_surface_data* surface)
               oc_list_push(&window->osx.layers, &surface->layer.listElt);
               oc_osx_update_layers(window);
           }
+      }
+    };
+
+    if([NSThread isMainThread])
+    {
+        block();
+    }
+    else
+    {
+        dispatch_sync(dispatch_get_main_queue(), block);
+    }
 }
 
 void oc_surface_cleanup(oc_surface_data* surface)

src/runtime.c

@@ -675,6 +675,8 @@ i32 orca_runloop(void* user)
 
         if(app->debugOverlay.show)
         {
+            oc_surface_bring_to_front(app->debugOverlay.surface);
+
             oc_ui_style debugUIDefaultStyle = { .bgColor = { 0 },
                                                 .color = { 1, 1, 1, 1 },
                                                 .font = app->debugOverlay.fontReg,

src/wasmbind/surface_api.json

@@ -36,6 +36,30 @@
 		{"name": "pixels",
 		 "type": {"name": "u8*", "tag": "p"}}]
 },
+{
+    "name": "oc_surface_contents_scaling",
+    "cname": "oc_surface_contents_scaling",
+    "ret": {"name": "oc_vec2", "tag": "S"},
+    "args": [
+        {"name": "surface",
+         "type": {"name": "oc_surface", "tag": "S"}}]
+},
+{
+    "name": "oc_surface_bring_to_front",
+    "cname": "oc_surface_bring_to_front",
+    "ret": {"name": "void", "tag": "v"},
+    "args": [
+        {"name": "surface",
+         "type": {"name": "oc_surface", "tag": "S"}}]
+},
+{
+    "name": "oc_surface_send_to_back",
+    "cname": "oc_surface_send_to_back",
+    "ret": {"name": "void", "tag": "v"},
+    "args": [
+        {"name": "surface",
+         "type": {"name": "oc_surface", "tag": "S"}}]
+},
 {
 	"name": "oc_surface_select",
 	"cname": "oc_surface_select",
@@ -52,14 +76,6 @@
 		{"name": "surface",
 		 "type": {"name": "oc_surface", "tag": "S"}}]
 },
-{
-    "name": "oc_surface_contents_scaling",
-    "cname": "oc_surface_contents_scaling",
-    "ret": {"name": "oc_vec2", "tag": "S"},
-    "args": [
-        {"name": "surface",
-         "type": {"name": "oc_surface", "tag": "S"}}]
-},
 {
 	"name": "oc_surface_render_commands",
 	"cname": "orca_surface_render_commands",