// Classic Shell (c) 2009-2010, Ivo Beltchev
// The sources for Classic Shell are distributed under the MIT open source license
#include "stdafx.h"
#include "Accessibility.h"
#include "MenuContainer.h"
#include "TranslationSettings.h"
CMenuAccessible::CMenuAccessible( CMenuContainer *pOwner )
{
m_RefCount=1;
m_pOwner=pOwner;
CreateStdAccessibleObject(pOwner->m_hWnd,OBJID_CLIENT,IID_IAccessible,(void**)&m_pStdAccessible);
}
CMenuAccessible::~CMenuAccessible( void )
{
}
void CMenuAccessible::Reset( void )
{
m_pOwner=NULL;
m_pStdAccessible=NULL;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accParent( IDispatch **ppdispParent )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
if (m_pStdAccessible)
return m_pStdAccessible->get_accParent(ppdispParent);
*ppdispParent=NULL;
return S_FALSE;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accChildCount( long *pcountChildren )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
*pcountChildren=(long)m_pOwner->m_Items.size();
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accChild( VARIANT varChild, IDispatch **ppdispChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
*ppdispChild=NULL; // no child IAccessibles
if (varChild.vt!=VT_I4) return E_INVALIDARG;
return S_FALSE;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accName( VARIANT varChild, BSTR *pszName )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
*pszName=NULL;
if (varChild.vt!=VT_I4) return S_FALSE;
if (varChild.lVal==CHILDID_SELF) return S_FALSE;
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size()) return S_FALSE;
if (m_pOwner->m_Items[index].id==MENU_SEPARATOR) return S_FALSE;
wchar_t text[256];
wcscpy_s(text,m_pOwner->m_Items[index].name);
for (wchar_t *c1=text,*c2=text;;c1++)
{
if (*c1!='&')
*c2++=*c1;
if (*c1==0) break;
}
*pszName=SysAllocString(text);
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accDescription( VARIANT varChild, BSTR *pszDescription )
{
return get_accName(varChild,pszDescription);
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accRole( VARIANT varChild, VARIANT *pvarRole )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
pvarRole->vt=VT_EMPTY;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
if (varChild.lVal==CHILDID_SELF)
{
pvarRole->vt=VT_I4;
pvarRole->lVal=ROLE_SYSTEM_MENUPOPUP;
return S_OK;
}
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size()) return E_INVALIDARG;
pvarRole->vt=VT_I4;
pvarRole->lVal=m_pOwner->m_Items[index].id==MENU_SEPARATOR?ROLE_SYSTEM_SEPARATOR:ROLE_SYSTEM_MENUITEM;
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accState( VARIANT varChild, VARIANT *pvarState )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
pvarState->vt=VT_EMPTY;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
int flags=STATE_SYSTEM_FOCUSABLE;
int index=varChild.lVal-1;
if (index>=0 && index<(int)m_pOwner->m_Items.size())
{
const CMenuContainer::MenuItem &item=m_pOwner->m_Items[index];
CWindow toolbar=m_pOwner->m_Toolbars[item.column];
if (toolbar.SendMessage(TB_GETHOTITEM)==item.btnIndex)
flags|=STATE_SYSTEM_FOCUSED;
if (item.bFolder)
flags|=STATE_SYSTEM_HASPOPUP;
if (item.id==MENU_SEPARATOR)
flags=0;
}
pvarState->vt=VT_I4;
pvarState->lVal=flags;
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accKeyboardShortcut( VARIANT varChild, BSTR *pszKeyboardShortcut )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
*pszKeyboardShortcut=NULL;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
int flags=0;
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size())
return S_FALSE;
const CMenuContainer::MenuItem &item=m_pOwner->m_Items[index];
wchar_t str[2]={item.accelerator,0};
*pszKeyboardShortcut=SysAllocString(str);
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accFocus( VARIANT *pvarChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
HWND focus=GetFocus();
pvarChild->vt=VT_EMPTY;
for (std::vector<CWindow>::iterator it=m_pOwner->m_Toolbars.begin();it!=m_pOwner->m_Toolbars.end();++it)
{
if (it->m_hWnd==focus)
{
int index=(int)it->SendMessage(TB_GETHOTITEM);
if (index>=0)
{
TBBUTTON button;
it->SendMessage(TB_GETBUTTON,index,(LPARAM)&button);
pvarChild->vt=VT_I4;
pvarChild->lVal=(int)button.dwData-CMenuContainer::ID_OFFSET+1;
}
break;
}
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accSelection( VARIANT *pvarChildren )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
pvarChildren->vt=VT_EMPTY;
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::get_accDefaultAction( VARIANT varChild, BSTR *pszDefaultAction )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
*pszDefaultAction=NULL;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
if (varChild.lVal==CHILDID_SELF)
{
*pszDefaultAction=SysAllocString(FindTranslation("Menu.ActionClose",L"Close"));
return S_OK;
}
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size())
return S_FALSE;
const CMenuContainer::MenuItem &item=m_pOwner->m_Items[index];
if (item.id!=MENU_SEPARATOR && item.id!=MENU_EMPTY)
*pszDefaultAction=SysAllocString(item.bFolder?FindTranslation("Menu.ActionOpen",L"Open"):FindTranslation("Menu.ActionExecute",L"Execute"));
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::accSelect( long flagsSelect, VARIANT varChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
if (flagsSelect&SELFLAG_TAKEFOCUS)
{
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size())
return S_FALSE;
m_pOwner->ActivateItem(index,CMenuContainer::ACTIVATE_SELECT,NULL);
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::accLocation( long *pxLeft, long *pyTop, long *pcxWidth, long *pcyHeight, VARIANT varChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
RECT rc;
if (varChild.lVal==CHILDID_SELF)
{
m_pOwner->GetWindowRect(&rc);
}
else
{
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size())
return S_FALSE;
const CMenuContainer::MenuItem &item=m_pOwner->m_Items[index];
CWindow toolbar=m_pOwner->m_Toolbars[item.column];
toolbar.SendMessage(TB_GETITEMRECT,item.btnIndex,(LPARAM)&rc);
toolbar.ClientToScreen(&rc);
}
*pxLeft=rc.left;
*pyTop=rc.top;
*pcxWidth=rc.right-rc.left;
*pcyHeight=rc.bottom-rc.top;
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::accNavigate( long navDir, VARIANT varStart, VARIANT *pvarEndUpAt )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
pvarEndUpAt->vt=VT_EMPTY;
if (varStart.vt!=VT_I4) return E_INVALIDARG;
switch (navDir)
{
case NAVDIR_FIRSTCHILD:
if (varStart.lVal!=CHILDID_SELF) return S_FALSE;
pvarEndUpAt->vt=VT_I4;
pvarEndUpAt->lVal=1;
break;
case NAVDIR_LASTCHILD:
if (varStart.lVal!=CHILDID_SELF) return S_FALSE;
pvarEndUpAt->vt=VT_I4;
pvarEndUpAt->lVal=(int)m_pOwner->m_Items.size();
break;
case NAVDIR_NEXT:
case NAVDIR_DOWN:
if (varStart.lVal==CHILDID_SELF)
{
if (m_pStdAccessible)
return m_pStdAccessible->accNavigate(navDir,varStart,pvarEndUpAt);
return S_FALSE;
}
if (varStart.lVal>=(int)m_pOwner->m_Items.size())
pvarEndUpAt->vt=VT_EMPTY;
else
{
pvarEndUpAt->vt=VT_I4;
pvarEndUpAt->lVal=varStart.lVal+1;
}
break;
case NAVDIR_PREVIOUS:
case NAVDIR_UP:
if (varStart.lVal==CHILDID_SELF)
{
if (m_pStdAccessible)
return m_pStdAccessible->accNavigate(navDir,varStart,pvarEndUpAt);
return S_FALSE;
}
if (varStart.lVal<1)
pvarEndUpAt->vt=VT_EMPTY;
else
{
pvarEndUpAt->vt=VT_I4;
pvarEndUpAt->lVal=varStart.lVal-1;
}
break;
// Unsupported directions.
case NAVDIR_LEFT:
case NAVDIR_RIGHT:
if (varStart.lVal==CHILDID_SELF)
{
if (m_pStdAccessible)
return m_pStdAccessible->accNavigate(navDir,varStart,pvarEndUpAt);
}
return S_FALSE;
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::accHitTest( long xLeft, long yTop, VARIANT *pvarChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
POINT pt={xLeft,yTop};
RECT rc;
m_pOwner->GetWindowRect(&rc);
if (!PtInRect(&rc,pt))
{
pvarChild->vt=VT_EMPTY;
return S_FALSE;
}
for (std::vector<CWindow>::iterator it=m_pOwner->m_Toolbars.begin();it!=m_pOwner->m_Toolbars.end();++it)
{
POINT pt2=pt;
it->ScreenToClient(&pt2);
int index=(int)it->SendMessage(TB_HITTEST,0,(LPARAM)&pt2);
if (index>=0)
{
TBBUTTON button;
it->SendMessage(TB_GETBUTTON,index,(LPARAM)&button);
pvarChild->vt=VT_I4;
pvarChild->lVal=(int)button.dwData-CMenuContainer::ID_OFFSET+1;
break;
}
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE CMenuAccessible::accDoDefaultAction( VARIANT varChild )
{
if (!m_pOwner) return RPC_E_DISCONNECTED;
if (varChild.vt!=VT_I4) return E_INVALIDARG;
if (varChild.lVal==CHILDID_SELF)
{
// close
for (std::vector<CMenuContainer*>::reverse_iterator it=CMenuContainer::s_Menus.rbegin();*it!=m_pOwner;++it)
(*it)->PostMessage(WM_CLOSE);
m_pOwner->PostMessage(WM_CLOSE);
return S_OK;
}
int index=varChild.lVal-1;
if (index<0 || index>=(int)m_pOwner->m_Items.size())
return S_FALSE;
// open or execute
const CMenuContainer::MenuItem &item=m_pOwner->m_Items[index];
if (item.id!=MENU_SEPARATOR && item.id!=MENU_EMPTY)
m_pOwner->ActivateItem(index,item.bFolder?CMenuContainer::ACTIVATE_OPEN:CMenuContainer::ACTIVATE_EXECUTE,NULL);
return S_OK;
}
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