windows-xp/Source/XPSP1/NT/shell/shell32/menuband/iaccess.cpp

#include "shellprv.h"
// APPCOMPAT (lamadio): Conflicts with one defined in winuserp.h
#undef WINEVENT_VALID       //It's tripping on this...
#include "winable.h"
#include "apithk.h"
#include "mnbandid.h"
#include "initguid.h"
#include "iaccess.h"

#include "mluisupp.h"

CAccessible::CAccessible(HMENU hmenu, WORD wID):
    _hMenu(hmenu), _wID(wID), _cRef(1)
{
    _fState = MB_STATE_TRACK;
}

CAccessible::CAccessible(IMenuBand* pmb): _cRef(1)
{
    _fState = MB_STATE_MENU;
    _pmb = pmb;
    if (_pmb)
    {
        _pmb->AddRef();
    }
}

CAccessible::CAccessible(IMenuBand* pmb, int iIndex): _cRef(1)
{
    _fState = MB_STATE_ITEM;
    _iAccIndex = iIndex;
    _pmb = pmb;
    if (_pmb)
    {
        _pmb->AddRef();
    }
}

CAccessible::~CAccessible()
{
    ATOMICRELEASE(_pTypeInfo);
    ATOMICRELEASE(_pInnerAcc);
    switch (_fState)
    {
    case MB_STATE_TRACK:
        ASSERT(!_hwndMenuWindow || IsWindow(_hwndMenuWindow));
        if (_hwndMenuWindow)
        {
            // Don't Destroy hmenu. It's part of a larger one...
            SetMenu(_hwndMenuWindow, NULL);
            DestroyWindow(_hwndMenuWindow);
            _hwndMenuWindow = NULL;
        }
        break;

    case MB_STATE_ITEM:
        ATOMICRELEASE(_pmtbItem);
        // Fall Through

    case MB_STATE_MENU:
        ATOMICRELEASE(_pmtbTop);
        ATOMICRELEASE(_pmtbBottom);
        ATOMICRELEASE(_psma);
        ATOMICRELEASE(_pmb);
        break;
    }
}

HRESULT CAccessible::InitAcc()
{
    HRESULT hr = E_FAIL;
    if (_fInitialized)
        return NOERROR;

    _fInitialized = TRUE;   // We're initialized if we fail or not...

    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (EVAL(_hMenu))
        {
            _hwndMenuWindow = CreateWindow(TEXT("static"),
                TEXT("MenuWindow"), WS_POPUP, 0, 0, 0, 0, NULL,
                _hMenu, g_hinst, NULL);
            if (EVAL(_hwndMenuWindow))
            {
                IAccessible* paccChild1;
                hr = CreateStdAccessibleObject(_hwndMenuWindow, OBJID_MENU, IID_PPV_ARG(IAccessible, &paccChild1));
                if (SUCCEEDED(hr))
                {
                    VARIANT varChild;
                    varChild.vt = VT_I4;
                    varChild.lVal = _wID + 1;        //Accesibility is 1 based

                    // In order to get "On par" with the OleAcc's implementation of the HMENU wrapper,
                    // we need to do this twice. Once gets us the IAccessible for the "MenuItem" on the 
                    // "Menubar". The second gets us the "Menuitem's" child. This is what we need to emulate
                    // their heirarchy.
                    IDispatch* pdispChild1;
                    hr = paccChild1->get_accChild(varChild, &pdispChild1);

                    // OLEAcc returns a Success code (S_FALSE) while initializing the out param to zero.
                    // Explicitly test this situation.

                    // Does this have a Child?
                    if (hr == S_OK)
                    {
                        // Yes. Look for that child
                        IAccessible* paccChild2;
                        hr = pdispChild1->QueryInterface(IID_PPV_ARG(IAccessible, &paccChild2));

                        // Does this have a child?
                        if (hr == S_OK)
                        {
                            // Yep, then we store this guy's child...
                            IDispatch* pdispChild2;
                            varChild.lVal = 1;        //Get the first child
                            hr = paccChild2->get_accChild(varChild, &pdispChild2);
                            if (hr == S_OK)
                            {
                                hr = pdispChild2->QueryInterface(IID_PPV_ARG(IAccessible, &_pInnerAcc));
                                pdispChild2->Release();
                            }
                            paccChild2->Release();
                        }
                        pdispChild1->Release();
                    }
                    paccChild1->Release();
                }
            }
        }
        break;


    case MB_STATE_ITEM:
    case MB_STATE_MENU:
        hr = _pmb->QueryInterface(IID_PPV_ARG(IShellMenuAcc, &_psma));
        if (SUCCEEDED(hr))
        {
            _psma->GetTop(&_pmtbTop);
            _psma->GetBottom(&_pmtbBottom);
            if (!_pmtbTop || !_pmtbBottom)
            {
                hr = E_FAIL;
            }
        }

        if (SUCCEEDED(hr) && (_fState == MB_STATE_ITEM))
        {
            VARIANT varChild;
            _GetVariantFromChildIndex(NULL, _iAccIndex, &varChild);
            if (SUCCEEDED(_GetChildFromVariant(&varChild, &_pmtbItem, &_iIndex)))
                _idCmd = GetButtonCmd(_pmtbItem->_hwndMB, _iIndex);
        }

        break;
    }

    return hr;
}



/*----------------------------------------------------------
Purpose: IUnknown::AddRef method

*/
STDMETHODIMP_(ULONG) CAccessible::AddRef()
{
    _cRef++;
    return _cRef;
}


/*----------------------------------------------------------
Purpose: IUnknown::Release method

*/
STDMETHODIMP_(ULONG) CAccessible::Release()
{
    ASSERT(_cRef > 0);
    _cRef--;

    if (_cRef > 0)
        return _cRef;

    delete this;
    return 0;
}

/*----------------------------------------------------------
Purpose: IUnknown::QueryInterface method

*/
STDMETHODIMP CAccessible::QueryInterface(REFIID riid, LPVOID * ppvObj)
{
    HRESULT hres;
    static const QITAB qit[] = 
    {
        QITABENT(CAccessible, IDispatch),
        QITABENT(CAccessible, IAccessible),
        QITABENT(CAccessible, IEnumVARIANT),
        QITABENT(CAccessible, IOleWindow),
        { 0 },
    };

    hres = QISearch(this, (LPCQITAB)qit, riid, ppvObj);

    return hres;
}

/*----------------------------------------------------------
Purpose: IDispatch::GetTypeInfoCount method

*/
STDMETHODIMP CAccessible::GetTypeInfoCount(UINT * pctinfo)
{
    if (_pInnerAcc)
        return _pInnerAcc->GetTypeInfoCount(pctinfo);
    *pctinfo = 1;
    return NOERROR;
}

/*----------------------------------------------------------
Purpose: IDispatch::GetTypeInfo method

*/
STDMETHODIMP CAccessible::GetTypeInfo(UINT itinfo, LCID lcid, ITypeInfo ** pptinfo)
{
    *pptinfo = NULL;
    if (_pInnerAcc)
        return _pInnerAcc->GetTypeInfo(itinfo, lcid, pptinfo);

    if (itinfo != 0)
        return DISP_E_BADINDEX;

    if (EVAL(_LoadTypeLib()))
    {
        *pptinfo = _pTypeInfo;
        _pTypeInfo->AddRef();
        return NOERROR;
    }
    else
        return E_FAIL;
}

/*----------------------------------------------------------
Purpose: IDispatch::GetIDsOfNames method

*/
STDMETHODIMP CAccessible::GetIDsOfNames(REFIID riid, OLECHAR ** rgszNames, UINT cNames,
        LCID lcid, DISPID * rgdispid)
{
    if (_pInnerAcc)
        return _pInnerAcc->GetIDsOfNames(riid, rgszNames, cNames, lcid, rgdispid);

    if (IID_NULL != riid)
        return DISP_E_UNKNOWNINTERFACE;

    if (EVAL(_LoadTypeLib()))
    {
        return _pTypeInfo->GetIDsOfNames(rgszNames, cNames, rgdispid);
    }
    else
        return E_FAIL;
}


/*----------------------------------------------------------
Purpose: IDispatch::Invoke method

*/
STDMETHODIMP CAccessible::Invoke(DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags,
    DISPPARAMS * pdispparams, VARIANT * pvarResult, EXCEPINFO * pexcepinfo,
    UINT * puArgErr)

{
    if (_pInnerAcc)
        return _pInnerAcc->Invoke(dispidMember, riid, lcid, wFlags, pdispparams, pvarResult, 
            pexcepinfo, puArgErr);
    
    if (IID_NULL != riid)
        return DISP_E_UNKNOWNINTERFACE;

    if (EVAL(_LoadTypeLib()))
    {
        return _pTypeInfo->Invoke(static_cast<IDispatch*>(this),
            dispidMember, wFlags, pdispparams, pvarResult, pexcepinfo, puArgErr);
    }
    else
        return E_FAIL;
}

BOOL CAccessible::_LoadTypeLib()
{
    ITypeLib* pTypeLib;
    if (_pTypeInfo)
        return TRUE;

    if (SUCCEEDED(LoadTypeLib(L"oleacc.dll", &pTypeLib)))
    {
        pTypeLib->GetTypeInfoOfGuid(IID_IAccessible, &_pTypeInfo);
        ATOMICRELEASE(pTypeLib);
        return TRUE;
    }
    return FALSE;
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accParent method

*/
STDMETHODIMP CAccessible::get_accParent(IDispatch ** ppdispParent)
{   
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accParent(ppdispParent);
        break;

    case MB_STATE_MENU:
        {
            IUnknown* punk;
            if (SUCCEEDED(_psma->GetParentSite(IID_PPV_ARG(IUnknown, &punk))))
            {
                IAccessible* pacc;
                if (SUCCEEDED(IUnknown_QueryService(punk, SID_SMenuBandParent, 
                    IID_PPV_ARG(IAccessible, &pacc))))
                {
                    VARIANT varChild = {VT_I4, CHILDID_SELF};     // Init
                    hres = pacc->get_accFocus(&varChild);
                    if (SUCCEEDED(hres))
                    {
                        hres = pacc->get_accChild(varChild, ppdispParent);
                    }
                    VariantClear(&varChild);
                    pacc->Release();
                }
                else
                {
                    // Another implementation headache: Accessibility requires
                    // us to return S_FALSE when there is no parent.

                    *ppdispParent = NULL;
                    hres = S_FALSE;
                }

                punk->Release();
            }

            return hres;
        }
    case MB_STATE_ITEM:
        // The parent of an item is the menuband itself
        return IUnknown_QueryService(_psma, SID_SMenuPopup, IID_PPV_ARG(IDispatch, ppdispParent));
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accChildCount method

*/
STDMETHODIMP CAccessible::get_accChildCount(long * pChildCount)
{   
    *pChildCount = 0;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accChildCount(pChildCount);
        break;

    case MB_STATE_MENU:
        {
            int iTopCount = ToolBar_ButtonCount(_pmtbTop->_hwndMB);
            int iBottomCount = ToolBar_ButtonCount(_pmtbBottom->_hwndMB);
            *pChildCount = (_pmtbTop != _pmtbBottom)? iTopCount + iBottomCount : iTopCount;
        }
        break;
    case MB_STATE_ITEM:
        if (_pmtbItem->v_GetFlags(_idCmd) & SMIF_SUBMENU)
            *pChildCount = 1;
        break;

    }
    
    return NOERROR;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accChild method

*/
STDMETHODIMP CAccessible::get_accChild(VARIANT varChildIndex, IDispatch ** ppdispChild)     
{   
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accChild(varChildIndex, ppdispChild);
        break;

    case MB_STATE_MENU:
        {
            if (varChildIndex.vt == VT_I4 && varChildIndex.lVal == CHILDID_SELF)
            {
                // So this is the ONLY menthod that is allowed to fail when something is
                // unavailable.
                *ppdispChild = NULL;
                hres = E_INVALIDARG;
            }
            else
            {
                int iIndex;
                // Since it's returing an index, we don't need to test the success case
                _GetChildFromVariant(&varChildIndex, NULL, &iIndex);
                hres = _GetAccessibleItem(iIndex, ppdispChild);
            }
        }
        break;

    case MB_STATE_ITEM:
        if (_pmtbItem->v_GetFlags(_idCmd) & SMIF_SUBMENU)
        {
            VARIANT varChild;
            hres = _GetVariantFromChildIndex(_pmtbItem->_hwndMB, _iIndex, &varChild);
            if (SUCCEEDED(hres))
            {
                hres = _psma->GetSubMenu(&varChild, IID_PPV_ARG(IDispatch, ppdispChild));
                if (FAILED(hres))
                {
                    hres = S_FALSE;
                }
            }
        }
        else
            hres = E_NOINTERFACE;
        break;
    }
    
    return hres;   
}

HRESULT CAccessible::_GetAccName(BSTR* pbstr)
{
    IDispatch* pdisp;
    HRESULT hres = get_accParent(&pdisp);
    // Get parent can return a success code, but still fail to return a parent.
    // 
    if (hres == S_OK)
    {
        IAccessible* pacc;
        hres = pdisp->QueryInterface(IID_PPV_ARG(IAccessible, &pacc));
        if (SUCCEEDED(hres))
        {
            VARIANT varChild;
            hres = pacc->get_accFocus(&varChild);
            if (SUCCEEDED(hres))
                hres = pacc->get_accName(varChild, pbstr);
        }
    }

    return hres;
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accName method

*/
STDMETHODIMP CAccessible::get_accName(VARIANT varChild, BSTR* pszName)
{   
    CMenuToolbarBase* pmtb = _pmtbItem;
    int idCmd = _idCmd;
    int iIndex = _iIndex;

    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accName(varChild, pszName);
        break;

    case MB_STATE_MENU:
        if (varChild.lVal == CHILDID_SELF)
        {
            if (_GetAccName(pszName) == S_FALSE)
            {
                TCHAR sz[100];
                LoadString(HINST_THISDLL, IDS_ACC_APP, sz, ARRAYSIZE(sz));
                *pszName = SysAllocStringT(sz);
                if (!*pszName)
                    return E_OUTOFMEMORY;
            }
            return NOERROR;
        }
        else
        {
            if (FAILED(_GetChildFromVariant(&varChild, &pmtb, &iIndex)))
                return DISP_E_MEMBERNOTFOUND;

            idCmd = GetButtonCmd(pmtb->_hwndMB, iIndex);
        }

        // Fall Through

    case MB_STATE_ITEM:
        {
            TCHAR sz[MAX_PATH];
            int idString = 0;
            TBBUTTON tbb;
            if (ToolBar_GetButton(pmtb->_hwndMB, iIndex, &tbb) && 
                tbb.fsStyle & BTNS_SEP)
            {
                idString = IDS_ACC_SEP;
            }
            else if (pmtb->GetChevronID() == _idCmd)
            {
                idString = IDS_ACC_CHEVRON;
            }

            if (idString != 0)
            {
                LoadString(HINST_THISDLL, idString, sz, ARRAYSIZE(sz));
                *pszName = SysAllocStringT(sz);
            }
            else if (SendMessage(pmtb->_hwndMB, TB_GETBUTTONTEXT, idCmd, (LPARAM)sz) > 0)
            {
                SHStripMneumonic(sz);
                *pszName = SysAllocString(sz);
            }

            if (_fState == MB_STATE_MENU)
                pmtb->Release();

            if (!*pszName)
                return E_OUTOFMEMORY;

            return NOERROR;
        }
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accValue method

*/
STDMETHODIMP CAccessible::get_accValue(VARIANT varChild, BSTR* pszValue)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accValue(varChild, pszValue);
        break;

    case MB_STATE_MENU:
    case MB_STATE_ITEM:
        *pszValue = NULL;
        return S_FALSE;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accDescription method

*/
STDMETHODIMP CAccessible::get_accDescription(VARIANT varChild, BSTR * pszDescription)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accDescription(varChild, pszDescription);
        break;

    case MB_STATE_MENU:
        if (FAILED(_GetAccName(pszDescription)))
        {
            TCHAR sz[100];
            LoadString(HINST_THISDLL, IDS_ACC_APPMB, sz, ARRAYSIZE(sz));
            *pszDescription = SysAllocStringT(sz);
            if (!*pszDescription)
                return E_OUTOFMEMORY;
        }
        break;
    case MB_STATE_ITEM:
        return get_accName(varChild, pszDescription);
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accRole method

*/
STDMETHODIMP CAccessible::get_accRole(VARIANT varChild, VARIANT *pvarRole)
{   
    pvarRole->vt = VT_I4;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accRole(varChild, pvarRole);
        break;

    case MB_STATE_MENU:
        {
            BOOL fVertical, fOpen;
            _psma->GetState(&fVertical, &fOpen);
            pvarRole->lVal = fVertical ? ROLE_SYSTEM_MENUPOPUP : ROLE_SYSTEM_MENUBAR;
            return NOERROR;
        }

    case MB_STATE_ITEM:
        pvarRole->lVal = ROLE_SYSTEM_MENUITEM;
        return NOERROR;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accState method

*/
STDMETHODIMP CAccessible::get_accState(VARIANT varChild, VARIANT *pvarState)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accState(varChild, pvarState);
        break;

    case MB_STATE_MENU:
        {
            // All menus can be selected, and given focus. Most will be visible.
            DWORD dwState = STATE_SYSTEM_FOCUSABLE;

            BOOL fOpen, fVertical;
            _psma->GetState(&fVertical, &fOpen);

            // Do we have a menu popped up?
            if (fOpen)
            {
                // Yes, then we have focus
                dwState |= STATE_SYSTEM_FOCUSED;
            }
            else if (fVertical)
            {
                // If we're a vertical menu without being popped up, then we're invisible.
                dwState |= STATE_SYSTEM_INVISIBLE;
            }


            pvarState->vt = VT_I4;
            pvarState->lVal = dwState;
        }
        return NOERROR;

    case MB_STATE_ITEM:
        {
            DWORD dwState = 0;

            TBBUTTON tbb;
            if (-1 != ToolBar_GetButton(_pmtbItem->_hwndMB, _iIndex, &tbb))
            {
                dwState = tbb.fsState; // ToolBar_GetState returns -1 for some menus, need to use ToolBar_GetButton
            }

            int idHotTracked = ToolBar_GetHotItem(_pmtbItem->_hwndMB);
            
            DWORD dwAccState;            
            if (dwState & TBSTATE_ENABLED)
            {
                dwAccState = STATE_SYSTEM_FOCUSABLE;
            }
            else
            {
                dwAccState = STATE_SYSTEM_UNAVAILABLE;
            }

            if (dwState & (TBSTATE_PRESSED | TBSTATE_ENABLED))
            {
                dwAccState |= STATE_SYSTEM_SELECTABLE | STATE_SYSTEM_FOCUSED;
            }

            if ((-1 != idHotTracked) && (idHotTracked == _iIndex))
            {
                dwAccState |= STATE_SYSTEM_HOTTRACKED;
            }

            if (_pmtbItem->v_GetFlags(_idCmd) & SMIF_SUBMENU)
            {
                dwAccState |= STATE_SYSTEM_HASPOPUP;
            }

            pvarState->vt = VT_I4;
            pvarState->lVal = dwAccState;

            return NOERROR;
        }
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accHelp method

*/
STDMETHODIMP CAccessible::get_accHelp(VARIANT varChild, BSTR* pszHelp)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accHelp(varChild, pszHelp);
        break;

    case MB_STATE_MENU:
    case MB_STATE_ITEM:
        // Not implemented
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accHelpTopic method

*/
STDMETHODIMP CAccessible::get_accHelpTopic(BSTR* pszHelpFile, VARIANT varChild, long* pidTopic)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accHelpTopic(pszHelpFile, varChild, pidTopic);
        break;

    case MB_STATE_MENU:
    case MB_STATE_ITEM:
        // Not implemented
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

#define CH_PREFIX TEXT('&')

TCHAR GetAccelerator(LPCTSTR psz, BOOL bUseDefault)
{
    TCHAR ch = (TCHAR)-1;
    LPCTSTR pszAccel = psz;
    // then prefixes are allowed.... see if it has one
    do 
    {
        pszAccel = StrChr(pszAccel, CH_PREFIX);
        if (pszAccel) 
        {
            pszAccel = CharNext(pszAccel);

            // handle having &&
            if (*pszAccel != CH_PREFIX)
                ch = *pszAccel;
            else
                pszAccel = CharNext(pszAccel);
        }
    } while (pszAccel && (ch == (TCHAR)-1));

    if ((ch == (TCHAR)-1) && bUseDefault)
    {
        // Since we're unicocde, we don't need to mess with MBCS
        ch = *psz;
    }

    return ch;
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accKeyboardShortcut method

*/
STDMETHODIMP CAccessible::get_accKeyboardShortcut(VARIANT varChild, BSTR* pszKeyboardShortcut)
{   
    CMenuToolbarBase* pmtb;
    int iIndex;
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    *pszKeyboardShortcut = NULL;

    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accKeyboardShortcut(varChild, pszKeyboardShortcut);
        break;

    case MB_STATE_ITEM:
        pmtb = _pmtbItem;
        pmtb->AddRef();
        iIndex = _iIndex;
        goto labelGetaccel;

    case MB_STATE_MENU:
        {
            if (varChild.lVal != CHILDID_SELF)
            {
                if (SUCCEEDED(_GetChildFromVariant(&varChild, &pmtb, &iIndex)))
                {
labelGetaccel:
                    TCHAR sz[MAX_PATH];
                    TCHAR szAccel[100] = TEXT("");
                    int idCmd = GetButtonCmd(pmtb->_hwndMB, iIndex);
                    if (S_FALSE == _psma->IsEmpty())
                    {
                        if (SendMessage(pmtb->_hwndMB, TB_GETBUTTONTEXT, idCmd, (LPARAM)sz) > 0)
                        {
                            BOOL fVertical, fOpen;
                            _psma->GetState(&fVertical, &fOpen);
                            if (!fVertical)
                            {
                                LoadString(HINST_THISDLL, IDS_ACC_ALT, szAccel, ARRAYSIZE(szAccel));
                            }
                            szAccel[lstrlen(szAccel)] = GetAccelerator(sz, TRUE);
                            szAccel[lstrlen(szAccel)] = TEXT('\0');
                            hres = S_OK;
                        }
                    }

                    if (SUCCEEDED(hres))
                    {
                        *pszKeyboardShortcut = SysAllocStringT(szAccel);
                        if (!*pszKeyboardShortcut)
                            hres = E_OUTOFMEMORY;
                    }
                    pmtb->Release();
                }
            }
        }
        break;
    }
    
    return hres;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accFocus method

*/
STDMETHODIMP CAccessible::get_accFocus(VARIANT * pvarFocusChild)
{   
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accFocus(pvarFocusChild);
        break;

    case MB_STATE_MENU:
        {
            pvarFocusChild->vt = VT_I4;
            pvarFocusChild->lVal = CHILDID_SELF;

            CMenuToolbarBase* pmtbTracked;
            _psma->GetTracked(&pmtbTracked);
            if (pmtbTracked)
            {
                int iIndex = ToolBar_GetHotItem(pmtbTracked->_hwndMB);
                hres = _GetVariantFromChildIndex(pmtbTracked->_hwndMB, 
                    iIndex, pvarFocusChild);
                pmtbTracked->Release();
            }
        }
        break;

    case MB_STATE_ITEM:
        // Not implemented;
        break;
    }
    
    return hres;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accSelection method

*/
STDMETHODIMP CAccessible::get_accSelection(VARIANT * pvarSelectedChildren)     
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accSelection(pvarSelectedChildren);
        break;

    case MB_STATE_MENU:
        return get_accFocus(pvarSelectedChildren);
        break;

    case MB_STATE_ITEM:
        // Not implemented;
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::get_accDefaultAction method

*/
STDMETHODIMP CAccessible::get_accDefaultAction(VARIANT varChild, BSTR* pszDefaultAction)
{   
    TCHAR sz[MAX_PATH];

    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->get_accDefaultAction(varChild, pszDefaultAction);
        break;

    case MB_STATE_MENU:
        {
            LoadString(HINST_THISDLL, IDS_ACC_CLOSE, sz, ARRAYSIZE(sz));
            *pszDefaultAction = SysAllocStringT(sz);

            if (!*pszDefaultAction)
                return E_OUTOFMEMORY;

            return NOERROR;
        }

    case MB_STATE_ITEM:
        {
            if (S_OK == _psma->IsEmpty())
            {
                sz[0] = TEXT('\0');
            }
            else
            {
                int iId = (_pmtbItem->v_GetFlags(_idCmd) & SMIF_SUBMENU) ? IDS_ACC_OPEN: IDS_ACC_EXEC;
                LoadString(HINST_THISDLL, iId, sz, ARRAYSIZE(sz));
            }

            *pszDefaultAction = SysAllocStringT(sz);
            if (!*pszDefaultAction)
                return E_OUTOFMEMORY;

            return NOERROR;
        }
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::accSelect method

*/
STDMETHODIMP CAccessible::accSelect(long flagsSelect, VARIANT varChild)     
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->accSelect(flagsSelect, varChild);
        break;

    case MB_STATE_MENU:
    case MB_STATE_ITEM:
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::accLocation method

*/
STDMETHODIMP CAccessible::accLocation(long* pxLeft, long* pyTop, long* pcxWidth, long* pcyHeight, VARIANT varChild)
{   
    CMenuToolbarBase* pmtb;
    int iIndex;
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, varChild);
        break;

    case MB_STATE_ITEM:
        pmtb = _pmtbItem;
        pmtb->AddRef();
        iIndex = _iIndex;
        hres = NOERROR;
        goto labelGetRect;

    case MB_STATE_MENU:
        {
            RECT rc;
            if (varChild.vt == VT_I4)
            {
                if (varChild.lVal == CHILDID_SELF)
                {
                    IUnknown* punk;
                    hres = _psma->GetParentSite(IID_PPV_ARG(IUnknown, &punk));
                    if (SUCCEEDED(hres))
                    {
                        IOleWindow* poct;
                        hres = IUnknown_QueryService(punk, SID_SMenuPopup, IID_PPV_ARG(IOleWindow, &poct));
                        if (SUCCEEDED(hres))
                        {
                            HWND hwnd;
                            hres = poct->GetWindow(&hwnd);
                            if (SUCCEEDED(hres))
                            {
                                // Return the window rect of the menubar.
                                GetWindowRect(hwnd, &rc);
                            }

                            poct->Release();
                        }

                        punk->Release();
                    }
                }
                else
                {
                    hres = _GetChildFromVariant(&varChild, &pmtb, &iIndex);
                    if (SUCCEEDED(hres))
                    {
labelGetRect:           int idCmd = GetButtonCmd(pmtb->_hwndMB, iIndex);
                        if (!ToolBar_GetRect(pmtb->_hwndMB, idCmd, &rc))  //1 based index
                            hres = E_INVALIDARG;
                        MapWindowPoints(pmtb->_hwndMB, NULL, (LPPOINT)&rc, 2);
                        pmtb->Release();
                    }
                }

                if (SUCCEEDED(hres))
                {
                    *pxLeft = rc.left;
                    *pyTop = rc.top;
                    *pcxWidth = rc.right - rc.left;
                    *pcyHeight = rc.bottom - rc.top;
                }
            }
        }
        break;
    }
    
    return hres;   
}

/*----------------------------------------------------------
Purpose: IAccessible::accNavigate method

*/
STDMETHODIMP CAccessible::accNavigate(long navDir, VARIANT varStart, VARIANT * pvarEndUpAt)     
{   
    HRESULT hres = DISP_E_MEMBERNOTFOUND;
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->accNavigate(navDir, varStart, pvarEndUpAt);
        break;

    case MB_STATE_MENU:
        return _Navigate(navDir, varStart, pvarEndUpAt);
        break;

    case MB_STATE_ITEM:
        {
            VARIANT varChild;
            _GetVariantFromChildIndex(NULL, _iAccIndex, &varChild);
            return _Navigate(navDir, varChild, pvarEndUpAt);
        }
    }
    
    return hres;   
}

/*----------------------------------------------------------
Purpose: IAccessible::accHitTest method

*/
STDMETHODIMP CAccessible::accHitTest(long xLeft, long yTop, VARIANT * pvarChildAtPoint)
{   
    POINT pt = {xLeft, yTop};
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->accHitTest(xLeft, yTop, pvarChildAtPoint);
        break;

    case MB_STATE_MENU:
        {
            if (_psma)
            {
                int iIndex;
                HWND hwnd = WindowFromPoint(pt);

                if (hwnd == _pmtbTop->_hwndMB || hwnd == _pmtbBottom->_hwndMB)
                {
                    ScreenToClient(hwnd, &pt);
                    iIndex = ToolBar_HitTest(hwnd, &pt);
                    if (iIndex >= 0)
                    {
                        pvarChildAtPoint->vt = VT_DISPATCH;
                        // This call expects the index to be an "Accessible" index which is one based
                        VARIANT varChild;
                        _GetVariantFromChildIndex(hwnd, iIndex, &varChild);

                        //Since this is just returining an index, we don't need to test success
                        _GetChildFromVariant(&varChild, NULL, &iIndex);
                        return _GetAccessibleItem(iIndex, &pvarChildAtPoint->pdispVal);
                    }
                }

                // Hmm, must be self
                pvarChildAtPoint->vt = VT_I4;
                pvarChildAtPoint->lVal = CHILDID_SELF;

                return S_OK;
            }
        }
        break;

    case MB_STATE_ITEM:
        {
            RECT rc;
            MapWindowPoints(NULL, _pmtbItem->_hwndMB, &pt, 1);

            if (ToolBar_GetRect(_pmtbItem->_hwndMB, _idCmd, &rc) &&
                PtInRect(&rc, pt))
            {
                pvarChildAtPoint->vt = VT_I4;
                pvarChildAtPoint->lVal = CHILDID_SELF;
            }
            else
            {
                pvarChildAtPoint->vt = VT_EMPTY;
                pvarChildAtPoint->lVal = (DWORD)(-1);
            }
            return NOERROR;
        }
        break;

    }
    
    return DISP_E_MEMBERNOTFOUND;
}

/*----------------------------------------------------------
Purpose: IAccessible::accDoDefaultAction method

*/
STDMETHODIMP CAccessible::accDoDefaultAction(VARIANT varChild)
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->accDoDefaultAction(varChild);
        break;

    case MB_STATE_MENU:
        if (_psma)
            return _psma->DoDefaultAction(&varChild);
        break;

    case MB_STATE_ITEM:
        if (SendMessage(_pmtbItem->_hwndMB, TB_SETHOTITEM2, _iIndex, 
            HICF_OTHER | HICF_RESELECT | HICF_TOGGLEDROPDOWN))
            return NOERROR;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::put_accName method

*/
STDMETHODIMP CAccessible::put_accName(VARIANT varChild, BSTR szName)     
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
        if (_pInnerAcc)
            return _pInnerAcc->put_accName(varChild, szName);
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}

/*----------------------------------------------------------
Purpose: IAccessible::put_accValue method

*/
STDMETHODIMP CAccessible::put_accValue(VARIANT varChild, BSTR pszValue)  
{   
    switch (_fState)
    {
    case MB_STATE_TRACK:
       if (_pInnerAcc)
            return _pInnerAcc->put_accValue(varChild, pszValue);
        break;
    }
    
    return DISP_E_MEMBERNOTFOUND;   
}


HRESULT CAccessible::_Navigate(long navDir, VARIANT varStart, VARIANT * pvarEndUpAt)
{
    ASSERT(pvarEndUpAt);
    int iIndex = 0;         // 1 based index
    int iTBIndex;
    HRESULT hres = S_FALSE;
    TBBUTTONINFO tbInfo;
    int idCmd;
    VARIANT varTemp;
    CMenuToolbarBase* pmtb;
    BOOL fVertical;
    BOOL fOpen;


    tbInfo.cbSize = sizeof(TBBUTTONINFO);

    pvarEndUpAt->vt = VT_DISPATCH;
    pvarEndUpAt->pdispVal = NULL;

    _GetChildFromVariant(&varStart, NULL, &iIndex);

    _psma->GetState(&fVertical, &fOpen);
    if (!fVertical)
    {
        static const long navMap[] = 
        {
            NAVDIR_LEFT,    // Map to Up
            NAVDIR_RIGHT,   // Map to Down
            NAVDIR_UP,      // Map to Left
            NAVDIR_DOWN,    // Map to Right
        };
        if (IsInRange(navDir, NAVDIR_UP, NAVDIR_RIGHT))
            navDir = navMap[navDir - NAVDIR_UP];
    }

    switch (navDir)
    {
    case NAVDIR_NEXT:
        {
            VARIANT varVert = {0};
            // For the Vertical case, Next should return an error. 

            // Is this band vertical?
            // Don't do this for anything but the menu case.
            if (_fState == MB_STATE_MENU &&
                SUCCEEDED(IUnknown_QueryServiceExec(_psma, SID_SMenuBandParent, &CGID_MenuBand, 
                          MBANDCID_ISVERTICAL, 0, NULL, &varVert)) &&
                varVert.boolVal == VARIANT_TRUE)
            {
                ASSERT(VT_BOOL == varVert.vt);
                // Yes. Then punt
                hres = S_FALSE;
                break;
            }
            // Fall Through
        }
        //Fall through

    case NAVDIR_DOWN:
        hres = NOERROR;
        while (SUCCEEDED(hres))
        {
            iIndex++;
            hres = _GetVariantFromChildIndex(NULL, iIndex, &varTemp);
            if (SUCCEEDED(hres))
            {
                hres = _GetChildFromVariant(&varTemp, &pmtb, &iTBIndex);
                if (SUCCEEDED(hres))
                {
                    tbInfo.dwMask = TBIF_STATE | TBIF_STYLE;
                    idCmd = GetButtonCmd(pmtb->_hwndMB, iTBIndex);
                    ToolBar_GetButtonInfo(pmtb->_hwndMB, idCmd, &tbInfo);
                    pmtb->Release();

                    if (!(tbInfo.fsState & TBSTATE_HIDDEN) &&
                        !(tbInfo.fsStyle & TBSTYLE_SEP))
                    {
                        break;
                    }
                }
            }
        }
        break;

    case NAVDIR_FIRSTCHILD:
        if (_fState == MB_STATE_ITEM)
        {
            pvarEndUpAt->vt = VT_EMPTY;
            pvarEndUpAt->pdispVal = NULL;
            hres = S_FALSE;
            break;
        }

        iIndex = 0;
        hres = NOERROR;
        break;

    case NAVDIR_LASTCHILD:
        if (_fState == MB_STATE_ITEM)
        {
            pvarEndUpAt->vt = VT_EMPTY;
            pvarEndUpAt->pdispVal = NULL;
            hres = S_FALSE;
            break;
        }
        iIndex = -1;
        hres = NOERROR;
        break;

    case NAVDIR_LEFT:
        pvarEndUpAt->vt = VT_DISPATCH;
        return get_accParent(&pvarEndUpAt->pdispVal);
        break;

    case NAVDIR_RIGHT:
        {
            CMenuToolbarBase* pmtb = (varStart.lVal & TOOLBAR_MASK)? _pmtbTop : _pmtbBottom;
            int idCmd = GetButtonCmd(pmtb->_hwndMB, (varStart.lVal & ~TOOLBAR_MASK) - 1);
            if (pmtb->v_GetFlags(idCmd) & SMIF_SUBMENU)
            {
                IMenuPopup* pmp;
                hres = _psma->GetSubMenu(&varStart, IID_PPV_ARG(IMenuPopup, &pmp));
                if (SUCCEEDED(hres))
                {
                    IAccessible* pacc;
                    hres = IUnknown_QueryService(pmp, SID_SMenuBandChild, IID_PPV_ARG(IAccessible, &pacc));
                    if (SUCCEEDED(hres))
                    {
                        hres = pacc->accNavigate(NAVDIR_FIRSTCHILD, varStart, pvarEndUpAt);
                        pacc->Release();
                    }
                    pmp->Release();
                }
            }

                return hres;
        }
        break;

    case NAVDIR_PREVIOUS:
        {
            VARIANT varVert = {0};
            // For the Vertical case, Pervious should return an error. 

            // Is this band vertical?
            // Don't do this for anything but the menu case.
            if (_fState == MB_STATE_MENU &&
                SUCCEEDED(IUnknown_QueryServiceExec(_psma, SID_SMenuBandParent, &CGID_MenuBand, 
                          MBANDCID_ISVERTICAL, 0, NULL, &varVert)) &&
                varVert.boolVal == VARIANT_TRUE)
            {
                ASSERT(VT_BOOL == varVert.vt);
                // Yes. Then punt
                hres = S_FALSE;
                break;
            }
            // Fall Through
        }
        //Fall through

    case NAVDIR_UP:
        hres = NOERROR;
        while (SUCCEEDED(hres))
        {
            iIndex--;
            hres = _GetVariantFromChildIndex(NULL, iIndex, &varTemp);
            if (SUCCEEDED(hres))
            {
                hres = _GetChildFromVariant(&varTemp, &pmtb, &iTBIndex);
                if (SUCCEEDED(hres))
                {
                    if (iTBIndex == 0)    
                    {   
                        hres = S_FALSE;
                        //Don't navigate to self, allow the top bar to get a whack.
                        IUnknown* punk;
                        if (SUCCEEDED(_psma->GetParentSite(IID_PPV_ARG(IUnknown, &punk))))
                        {
                            IOleCommandTarget* poct;
                            if (SUCCEEDED(IUnknown_QueryService(punk, SID_SMenuBandParent, 
                                IID_PPV_ARG(IOleCommandTarget, &poct))))
                            {
                                VARIANT varVert = {0};

                                if (SUCCEEDED(poct->Exec(&CGID_MenuBand, MBANDCID_ISVERTICAL, 0, NULL, &varVert)) &&
                                    varVert.boolVal == VARIANT_FALSE)
                                {
                                    ASSERT(VT_BOOL == varVert.vt);

                                    IAccessible* pacc;
                                    if (SUCCEEDED(IUnknown_QueryService(punk, SID_SMenuBandParent, 
                                        IID_PPV_ARG(IAccessible, &pacc))))
                                    {
                                        VARIANT varChild = {VT_I4, CHILDID_SELF};
                                        hres = pacc->get_accFocus(&varChild);
                                        if (SUCCEEDED(hres))
                                        {
                                            hres = pacc->get_accChild(varChild, &pvarEndUpAt->pdispVal);
                                        }

                                        VariantClear(&varChild);
                                        pacc->Release();
                                    }
                                }
                                poct->Release();
                            }
                            punk->Release();
                        }
                    }   // iTBIndex == 0

                    tbInfo.dwMask = TBIF_STATE | TBIF_STYLE;
                    idCmd = GetButtonCmd(pmtb->_hwndMB, iTBIndex);
                    ToolBar_GetButtonInfo(pmtb->_hwndMB, idCmd, &tbInfo);
                    pmtb->Release();

                    if (!(tbInfo.fsState & TBSTATE_HIDDEN) &&
                        !(tbInfo.fsStyle & TBSTYLE_SEP))
                    {
                        break;
                    }
                }
            }
        }
        break;

    default:
        hres = E_INVALIDARG;
    }

    if (SUCCEEDED(hres) && S_FALSE != hres)
        hres = _GetAccessibleItem(iIndex, &pvarEndUpAt->pdispVal);

    return hres;
}

HRESULT CAccessible::_GetVariantFromChildIndex(HWND hwnd, int iIndex, VARIANT* pvarChild)
{
    // First bit: Top 1, bottom 0
    // Rest is index into that toolbar.
    pvarChild->vt = VT_I4;
    pvarChild->lVal = iIndex + 1;

    if (hwnd)
    {
        if (hwnd == _pmtbTop->_hwndMB)
        {
            pvarChild->lVal |= TOOLBAR_MASK;
        }
    }
    else
    {
        // Caller wants us to figure out based on index from top.
        int iTopCount = ToolBar_ButtonCount(_pmtbTop->_hwndMB);
        int iBottomCount = ToolBar_ButtonCount(_pmtbBottom->_hwndMB);
        int iTotalCount = (_pmtbTop != _pmtbBottom)? iTopCount + iBottomCount : iTopCount;

        if (iIndex < iTopCount)
        {
            pvarChild->lVal |= TOOLBAR_MASK;
        }
        else
        {
            pvarChild->lVal -= iTopCount;
        }

        // This works because:
        // If there are 2 toolbars, the bottom one is represented by top bit clear.
        // If there is only one, then it doesn't matter if it's top or bottom.

        // lVal is not zero based....
        if (iIndex == -1)
            pvarChild->lVal = iTotalCount;

        if (iIndex >= iTotalCount)
            return E_FAIL;
    }

    return NOERROR;
}

HRESULT CAccessible::_GetChildFromVariant(VARIANT* pvarChild, CMenuToolbarBase** ppmtb, int* piIndex)
{
    ASSERT(_pmtbTop && _pmtbBottom);
    ASSERT(piIndex);

    if (ppmtb)
        *ppmtb = NULL;

    *piIndex = -1;

    // Passing a NULL for an HWND returns the index from the beginning of the set.
    int iAdd = 0;
    if (pvarChild->vt != VT_I4)
        return E_FAIL;

    if (pvarChild->lVal & TOOLBAR_MASK)
    {
        if (ppmtb)
        {
            *ppmtb = _pmtbTop;
        }
    }
    else
    {
        if (ppmtb)
        {
            *ppmtb = _pmtbBottom;
        }
        else
        {
            iAdd = ToolBar_ButtonCount(_pmtbTop->_hwndMB);
        }
    }

    if (ppmtb && *ppmtb)
        (*ppmtb)->AddRef();

    *piIndex = (pvarChild->lVal & ~TOOLBAR_MASK) + iAdd - 1;

    return (ppmtb && !*ppmtb) ? E_FAIL : S_OK;
}


HRESULT CAccessible::_GetAccessibleItem(int iIndex, IDispatch** ppdisp)
{
    HRESULT hres = E_OUTOFMEMORY;
    CAccessible* pacc = new CAccessible(_pmb, iIndex);

    if (pacc)
    {
        if (SUCCEEDED(pacc->InitAcc()))
        {
            hres = pacc->QueryInterface(IID_PPV_ARG(IDispatch, ppdisp));
        }
        pacc->Release();
    }
    return hres;
}

// *** IEnumVARIANT methods ***
STDMETHODIMP CAccessible::Next(unsigned long celt, 
                        VARIANT * rgvar, 
                        unsigned long * pceltFetched)
{

    // Picky customer complaint. Check for NULL...
    if (pceltFetched)
        *pceltFetched = 1;
    return _GetVariantFromChildIndex(NULL, _iEnumIndex++, rgvar);
}

STDMETHODIMP CAccessible::Skip(unsigned long celt)
{
    return E_NOTIMPL;
}

STDMETHODIMP CAccessible::Reset()
{
    _iEnumIndex = 0;
    return NOERROR;
}

STDMETHODIMP CAccessible::Clone(IEnumVARIANT ** ppenum)
{
    return E_NOTIMPL;
}

// *** IOleWindow methods ***
STDMETHODIMP CAccessible::GetWindow(HWND * lphwnd)
{
    *lphwnd = NULL;

    switch (_fState)
    {
    case MB_STATE_TRACK:
        *lphwnd = _hwndMenuWindow;
        break;

    case MB_STATE_ITEM:
        *lphwnd = _pmtbItem->_hwndMB;
        break;

    case MB_STATE_MENU:
        *lphwnd = _pmtbTop->_hwndMB;
        break;
    }

    if (*lphwnd)
        return NOERROR;

    return E_FAIL;
}

STDMETHODIMP CAccessible::ContextSensitiveHelp(BOOL fEnterMode)
{
    return E_NOTIMPL;
}