//
// utb.h
//

#ifndef UTB_H
#define UTB_H

#include "private.h"

#ifndef ASFW_ANY
#define ASFW_ANY    ((DWORD)-1)
#endif

typedef void (*REGISTERSYSTEMTHREAD)(DWORD dw, DWORD reserve);
typedef BOOL (*ALLOWSETFOREGROUNDWINDOW)(DWORD dw);
ALLOWSETFOREGROUNDWINDOW EnsureAllowSetForeground();
REGISTERSYSTEMTHREAD EnsureRegSys();

HRESULT RegisterLangBarNotifySink(ITfLangBarEventSink *pSink, HWND hwnd, DWORD dwFlags, DWORD *pdwCookie);
HRESULT UnregisterLangBarNotifySink(DWORD dwCookie);

BOOL CALLBACK EnumChildWndProc(HWND hwnd, LPARAM lParam);
BOOL FindTrayEtc();
BOOL IsNotifyTrayWnd(HWND hWnd);

void LangBarClosed();

//////////////////////////////////////////////////////////////////////////////
//
// CLangBarMgr
//
//////////////////////////////////////////////////////////////////////////////

// If we ever go crazy for perf, this class could be a single static instance,
// since it has no state.  We need to get rid of the ATL CComCoClass and
// CComObjectRoot to do this.
class CLangBarMgr : 
      public ITfLangBarMgr_P,
      public CComObjectRoot_CreateInstance<CLangBarMgr>
{
public:
    CLangBarMgr();
    ~CLangBarMgr();

    BEGIN_COM_MAP_IMMX(CLangBarMgr)
        COM_INTERFACE_ENTRY(ITfLangBarMgr)
        COM_INTERFACE_ENTRY(ITfLangBarMgr_P)
    END_COM_MAP_IMMX()

    //
    // ITfLangBarManager
    //
    STDMETHODIMP AdviseEventSink(ITfLangBarEventSink *pSink, HWND hwnd, DWORD dwFlags, DWORD *pdwCookie);
    STDMETHODIMP UnadviseEventSink(DWORD dwCookie);
    STDMETHODIMP GetThreadMarshalInterface(DWORD dwThreadId, DWORD dwType, REFIID riid, IUnknown **ppunk);
    STDMETHODIMP GetThreadLangBarItemMgr(DWORD dwThreadId, ITfLangBarItemMgr **pplbi, DWORD *pdwThreadId) ;
    STDMETHODIMP GetInputProcessorProfiles(DWORD dwThreadId, ITfInputProcessorProfiles **ppaip, DWORD *pdwThreadId) ;
    STDMETHODIMP RestoreLastFocus(DWORD *pdwThreadId, BOOL fPrev);
    STDMETHODIMP SetModalInput(ITfLangBarEventSink *pSink, DWORD dwThreadId, DWORD dwFlags);
    STDMETHODIMP ShowFloating(DWORD dwFlags);
    STDMETHODIMP GetShowFloatingStatus(DWORD *pdwFlags);

    //
    // ITfLangBarManager_P
    //
    STDMETHODIMP GetPrevShowFloatingStatus(DWORD *pdwFlags);

    static HRESULT s_ShowFloating(DWORD dwFlags);
    static HRESULT s_GetShowFloatingStatus(DWORD *pdwFlags);

private:
    static BOOL CheckFloatingBits(DWORD dwBits);

    DBG_ID_DECLARE;
};


#endif //UTB_H