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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
// https://chromium.googlesource.com/chromium/chromium/+/refs/heads/master/ui/base/win/ime_input.cc
#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 AutoHIMC : public Object {
public:
explicit AutoHIMC(HWND hwnd);
CRU_DELETE_COPY(AutoHIMC)
AutoHIMC(AutoHIMC&& other);
AutoHIMC& operator=(AutoHIMC&& other);
~AutoHIMC() override;
HWND GetHwnd() const { return hwnd_; }
HIMC Get() const { return handle_; }
private:
HWND hwnd_;
HIMC handle_;
};
class WinInputMethodContext : public WinNativeResource,
public virtual IInputMethodContext {
public:
WinInputMethodContext(gsl::not_null<WinNativeWindow*> window);
CRU_DELETE_COPY(WinInputMethodContext)
CRU_DELETE_MOVE(WinInputMethodContext)
~WinInputMethodContext() override;
bool ShouldManuallyDrawCompositionText() override { return true; }
void EnableIME() override;
void DisableIME() override;
void CompleteComposition() override;
void CancelComposition() override;
CompositionText GetCompositionText() override;
void SetCandidateWindowPosition(const Point& point) override;
IEvent<std::nullptr_t>* CompositionStartEvent() override;
IEvent<std::nullptr_t>* CompositionEndEvent() override;
IEvent<std::nullptr_t>* CompositionEvent() override;
IEvent<std::string_view>* TextEvent() override;
private:
void OnWindowNativeMessage(WindowNativeMessageEventArgs& args);
std::string GetResultString();
std::optional<AutoHIMC> TryGetHIMC();
private:
std::shared_ptr<INativeWindowResolver> native_window_resolver_;
std::vector<EventRevokerGuard> event_revoker_guards_;
Event<std::nullptr_t> composition_start_event_;
Event<std::nullptr_t> composition_end_event_;
Event<std::nullptr_t> composition_event_;
Event<std::string_view> text_event_;
};
class WinInputMethodManager : public WinNativeResource,
public virtual IInputMethodManager {
public:
WinInputMethodManager(WinUiApplication* application);
CRU_DELETE_COPY(WinInputMethodManager)
CRU_DELETE_MOVE(WinInputMethodManager)
~WinInputMethodManager() override;
public:
std::unique_ptr<IInputMethodContext> GetContext(
INativeWindow* window) override;
};
} // namespace cru::platform::native::win
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