API Reference / @gtkx/runtime / registerWrapperClassResolver

Function: registerWrapperClassResolver()

registerWrapperClassResolver(cls, resolver): void

Defined in: packages/runtime/dist/registry.d.ts:114

Lets a class registered with registerWrapperClass pick a subclass for each handle it wraps, for types whose one GType covers several C-level subtypes, the way a cairo surface reports image or recording through cairo_surface_get_type. The resolver runs when a handle is wrapped as that class explicitly, the way a boxed value a binding hands back is; a wrapper resolved from a handle's runtime GType never consults it, and a subclass passed to wrapHandle directly is used as given.

Parameters

cls

AnyClass

Registered wrapper class whose handles the resolver classifies.

resolver

WrapperClassResolver

Returns the class to instantiate for one handle, cls itself included.

Returns

void

Throws

If cls is not a registered wrapper class.