widget_delegate.hpp

 
 
 
#pragma once
 
#include "../dispatch/dispatch.hpp"
#include "../utility/utility.hpp"
#include "../GUI/GUI.hpp"
 
namespace hi { inline namespace v1 {
 
struct widget_delegate {
    using notifier_type = notifier<void()>;
    using callback_type = notifier_type::callback_type;
 
    notifier_type _notifier;
 
    virtual ~widget_delegate() = default;
 
    virtual void init(widget_intf const& sender) noexcept {}
 
    virtual void deinit(widget_intf const& sender) noexcept {}
 
 
    template<forward_of<void()> Func>
    [[nodiscard]] callback_type subscribe(Func&& func, callback_flags flags = callback_flags::synchronous) noexcept
    {
        return _notifier.subscribe(std::forward<Func>(func), flags);
    }
};
 
}}