feat: add signal handler for status-go

src/nimqml.nim

@@ -29,3 +29,8 @@ include "nimqml/private/qabstracttablemodel.nim"
 include "nimqml/private/qresource.nim"
 include "nimqml/private/qdeclarative.nim"
 include "nimqml/private/nimqmlmacros.nim"
+
+proc signal_handler*(receiver: pointer, signal: cstring, slot: cstring) =
+  var dosqobj = cast[DosQObject](receiver)
+  if(dosqobj.isNil == false):
+    dos_signal(receiver, signal, slot)

src/nimqml/private/dotherside.nim

@@ -191,6 +191,9 @@ proc dos_qmetaobject_create(superclassMetaObject: DosQMetaObject,
                             propertyDefinitions: ptr DosPropertyDefinitions): DosQMetaObject {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qmetaobject_delete(vptr: DosQMetaObject) {.cdecl, dynlib: dynLibName, importc.}
 
+# status-go signal handler
+proc dos_signal(vptr: pointer, signal: cstring, slot: cstring) {.cdecl, dynlib: dynLibName, importc.}
+
 # QUrl
 proc dos_qurl_create(url: cstring, parsingMode: cint): DosQUrl {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qurl_delete(vptr: DosQUrl) {.cdecl, dynlib: dynLibName, importc.}

src/nimqml/private/qobject.nim

@@ -68,3 +68,6 @@ proc newQObject*(): QObject =
   ## Create a new QObject
   new(result, delete)
   result.setup()
+
+proc vptr*(self: QObject): DosQObject =
+  result = self.vptr