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Clean up til::event (#19654)

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Dedupe the two structs by using a type alias.
Also cleans up the implicit bool operator, template args, etc.
This commit is contained in:
Leonard Hecker
2025-12-17 17:57:04 +01:00
committed by GitHub
parent 2f8c51e23d
commit aefacd6a12
1 changed files with 7 additions and 17 deletions
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24
src/inc/til/winrt.h
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@@ -60,32 +60,22 @@ namespace til // Terminal Implementation Library. Also: "Today I Learned"
template<typename ArgsT>
struct event
{
event<ArgsT>() = default;
explicit operator bool() const noexcept { return static_cast<bool>(_handlers); }
winrt::event_token operator()(const ArgsT& handler) { return _handlers.add(handler); }
void operator()(const winrt::event_token& token) { _handlers.remove(token); }
operator bool() const noexcept { return bool(_handlers); }
template<typename... Arg>
void operator()(winrt::event_token token) { _handlers.remove(token); }
void raise(auto&&... args)
{
_handlers(std::forward<decltype(args)>(args)...);
}
private:
winrt::event<ArgsT> _handlers;
};
template<typename SenderT = winrt::Windows::Foundation::IInspectable, typename ArgsT = winrt::Windows::Foundation::IInspectable>
struct typed_event
{
typed_event<SenderT, ArgsT>() = default;
winrt::event_token operator()(const winrt::Windows::Foundation::TypedEventHandler<SenderT, ArgsT>& handler) { return _handlers.add(handler); }
void operator()(const winrt::event_token& token) { _handlers.remove(token); }
operator bool() const noexcept { return bool(_handlers); }
template<typename... Arg>
void raise(Arg const&... args)
{
_handlers(std::forward<decltype(args)>(args)...);
}
winrt::event<winrt::Windows::Foundation::TypedEventHandler<SenderT, ArgsT>> _handlers;
};
using typed_event = til::event<winrt::Windows::Foundation::TypedEventHandler<SenderT, ArgsT>>;
#endif
#ifdef WINRT_Windows_UI_Xaml_Data_H