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#pragma once
#include "../resource.hpp"
#include "base.hpp"
#include "cru/common/event.hpp"
#include <memory>
namespace cru::platform::native {
// It is a reference, so there is a ref count, remember to destroy it to release
// the ref after use.
struct IInputMethodContextRef : virtual INativeResource {
// Return true if you should draw composition text manually. Return false if
// system will take care of that for you.
virtual bool ShouldManuallyDrawCompositionText() = 0;
// Reset composition string. Use this method to prepare typing.
virtual void Reset() = 0;
// Get the composition string.
virtual std::string GetCompositionText() = 0;
// Set the candidate window lefttop. Use this method to prepare typing.
virtual void SetCandidateWindowPosition(const Point& point) = 0;
// Triggered when user starts composition.
virtual IEvent<std::nullptr_t>* CompositionStartEvent() = 0;
// Triggered when user stops composition.
virtual IEvent<std::nullptr_t>* CompositionEndEvent() = 0;
// Triggered every time composition text changes, event args is the new
// composition text.
virtual IEvent<std::string>* CompositionTextChangeEvent() = 0;
};
struct IInputMethodManager : virtual INativeResource {
// Get a reference of context of a window.
virtual std::unique_ptr<IInputMethodContextRef> GetContext(
INativeWindow* window) = 0;
};
} // namespace cru::platform::native
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