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// Some useful information can be found from chromium code:
// https://chromium.googlesource.com/chromium/chromium/+/refs/heads/master/ui/base/win/ime_input.h
#pragma once
#include "resource.hpp"
#include "cru/platform/native/input_method.hpp"
#include "window_native_message_event_args.hpp"
#include <imm.h>
namespace cru::platform::native::win {
class WinNativeWindow;
class WinInputMethodContextRef : public WinNativeResource,
public IInputMethodContextRef {
public:
WinInputMethodContextRef(WinNativeWindow* window);
CRU_DELETE_COPY(WinInputMethodContextRef)
CRU_DELETE_MOVE(WinInputMethodContextRef)
~WinInputMethodContextRef() override;
::HIMC GetHandle() const { return handle_; }
bool ShouldManuallyDrawCompositionText() override { return true; }
void Reset() override;
std::string GetCompositionText() override;
void SetCandidateWindowPosition(const Point& point) override;
IEvent<std::nullptr_t>* CompositionStartEvent() override;
IEvent<std::nullptr_t>* CompositionEndEvent() override;
IEvent<std::string>* CompositionTextChangeEvent() override;
private:
void OnWindowNativeMessage(WindowNativeMessageEventArgs& args);
private:
[[maybe_unused]] WinNativeWindow* window_;
std::vector<EventRevokerGuard> event_revoker_guards_;
::HWND window_handle_;
::HIMC handle_;
Event<std::nullptr_t> composition_start_event_;
Event<std::nullptr_t> composition_end_event_;
Event<std::string> composition_text_change_event_;
};
} // namespace cru::platform::native::win
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