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#pragma once
#include "UiEventArgs.hpp"
#include "cru/common/Event.hpp"
namespace cru::ui::events {
// TEventArgs must not be a reference type. This class help add reference.
// EventArgs must be reference because the IsHandled property must be settable.
template <typename TEventArgs>
class RoutedEvent {
public:
static_assert(std::is_base_of_v<UiEventArgs, TEventArgs>,
"TEventArgs must be subclass of UiEventArgs.");
static_assert(!std::is_reference_v<TEventArgs>,
"TEventArgs must not be reference.");
using RawEventArgs = TEventArgs;
using IEventType = IEvent<TEventArgs&>;
using EventArgs = typename IEventType::EventArgs;
RoutedEvent() = default;
RoutedEvent(const RoutedEvent& other) = delete;
RoutedEvent(RoutedEvent&& other) = delete;
RoutedEvent& operator=(const RoutedEvent& other) = delete;
RoutedEvent& operator=(RoutedEvent&& other) = delete;
~RoutedEvent() = default;
IEvent<TEventArgs&>* Direct() { return &direct_; }
IEvent<TEventArgs&>* Bubble() { return &bubble_; }
IEvent<TEventArgs&>* Tunnel() { return &tunnel_; }
private:
Event<TEventArgs&> direct_;
Event<TEventArgs&> bubble_;
Event<TEventArgs&> tunnel_;
};
} // namespace cru::ui::event
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