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#ifndef MOZC_WIN32_IME_IME_UI_CONTEXT_H_
#define MOZC_WIN32_IME_IME_UI_CONTEXT_H_

#include <windows.h>
#include <imm.h>

#include <string>
#include <vector>

#include "win32/base/immdev.h"
#include "win32/ime/ime_scoped_context.h"

namespace mozc {
namespace client {
class ClientInterface;
}  // namespace client

namespace commands {
class Output;
class RendererCommand_ApplicationInfo;
}  // namespace commands

namespace win32 {
struct PrivateContext;
class IndicatorVisibilityTracker;
class ImeCore;
class UIVisibilityTracker;

// TODO(yukawa): Refactor for unit tests and better integration with ImeCore.
class UIContext {
 public:
  explicit UIContext(HIMC context_handle);
  bool GetLastOutput(commands::Output *output) const;
  HWND GetAttachedWindow() const;
  bool IsEmpty() const;
  bool IsCompositionStringEmpty() const;
  bool GetFocusedCharacterIndexInComposition(DWORD *index) const;
  bool GetCompositionForm(COMPOSITIONFORM *composition_form) const;
  bool GetCandidateForm(
      DWORD form_index, CANDIDATEFORM *candidate_form) const;
  bool GetCompositionFont(LOGFONTW *font) const;
  bool GetConversionMode(DWORD *conversion) const;
  bool GetVisibleConversionMode(DWORD *conversion) const;
  bool GetLogicalConversionMode(DWORD *conversion) const;
  bool GetOpenStatus() const;
  bool IsKanaInputPreferred() const;
  bool IsModeIndicatorEnabled() const;

  mozc::client::ClientInterface *client() const;
  const INPUTCONTEXT *input_context() const;
  UIVisibilityTracker *ui_visibility_tracker() const;
  IndicatorVisibilityTracker *indicator_visibility_tracker() const;

  bool FillCompositionForm(
      commands::RendererCommand_ApplicationInfo *info) const;
  bool FillCandidateForm(
      commands::RendererCommand_ApplicationInfo *info) const;
  bool FillCharPosition(commands::RendererCommand_ApplicationInfo *info) const;
  bool FillCaretInfo(commands::RendererCommand_ApplicationInfo *info) const;
  bool FillFontInfo(commands::RendererCommand_ApplicationInfo *info) const;
 private:
  const HIMC context_handle_;
  const ScopedHIMC<INPUTCONTEXT> input_context_;
  const ScopedHIMCC<PrivateContext> private_context_;
};
}  // namespace win32
}  // namespace mozc

#endif  // MOZC_WIN32_IME_IME_UI_CONTEXT_H_