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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.h"
#include "WindowNativeMessageEventArgs.h"
#include "cru/platform/gui/InputMethod.h"
#include <imm.h>
namespace cru::platform::gui::win {
class CRU_WIN_GUI_API AutoHIMC : public Object {
CRU_DEFINE_CLASS_LOG_TAG("AutoHIMC")
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 CRU_WIN_GUI_API WinInputMethodContext
: public WinNativeResource,
public virtual IInputMethodContext {
CRU_DEFINE_CLASS_LOG_TAG("WinInputMethodContext")
public:
WinInputMethodContext(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<StringView>* TextEvent() override;
private:
void OnWindowNativeMessage(WindowNativeMessageEventArgs& args);
String GetResultString();
AutoHIMC GetHIMC();
private:
WinNativeWindow* native_window_;
EventRevokerListGuard event_guard_;
Event<std::nullptr_t> composition_start_event_;
Event<std::nullptr_t> composition_end_event_;
Event<std::nullptr_t> composition_event_;
Event<StringView> text_event_;
};
} // namespace cru::platform::gui::win
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