BOOL COleClientItem::ActivateAs(LPCTSTR lpszUserType,
REFCLSID clsidOld, REFCLSID clsidNew)
{
ASSERT_VALID(this);
ASSERT(lpszUserType == NULL || AfxIsValidString(lpszUserType));
ASSERT(m_lpObject != NULL);
// enable activate as
m_scLast = _AfxOleDoTreatAsClass(lpszUserType, clsidOld, clsidNew);
if (FAILED(m_scLast))
return FALSE;
// reload all items in this doucment
COleDocument* pDoc = GetDocument();
ASSERT_VALID(pDoc);
POSITION pos = pDoc->GetStartPosition();
COleClientItem* pItem;
while ((pItem = pDoc->GetNextClientItem(pos)) != NULL)
{
// reload it, so activate as works as appropriate
pItem->Reload();
}
ASSERT_VALID(this);
return TRUE;
}
//****************************************************************************
COleClientItem* CBCGPFrameWnd::GetInPlaceActiveItem ()
{
CFrameWnd* pActiveFrame = GetActiveFrame ();
if (pActiveFrame == NULL)
{
return NULL;
}
ASSERT_VALID (pActiveFrame);
CView* pView = pActiveFrame->GetActiveView ();
if (pView == NULL || pView->IsKindOf (RUNTIME_CLASS (CBCGPPrintPreviewView)))
{
return NULL;
}
ASSERT_VALID (pView);
COleDocument* pDoc = DYNAMIC_DOWNCAST (COleDocument, pView->GetDocument ());
if (pDoc == NULL)
{
return NULL;
}
ASSERT_VALID (pDoc);
return pDoc->GetInPlaceActiveItem (pView);
}
BOOL COleFrameHook::NotifyAllInPlace(
BOOL bParam, BOOL (COleFrameHook::*pNotifyFunc)(BOOL bParam))
{
ASSERT_VALID(this);
HWND hWndFrame = m_hWnd;
CWinApp* pApp = AfxGetApp();
// no doc manager - no templates
if (pApp->m_pDocManager == NULL)
return TRUE;
// walk all templates in the application
CDocTemplate* pTemplate;
POSITION pos = pApp->m_pDocManager->GetFirstDocTemplatePosition();
while (pos != NULL)
{
pTemplate = pApp->m_pDocManager->GetNextDocTemplate(pos);
ASSERT_VALID(pTemplate);
ASSERT_KINDOF(CDocTemplate, pTemplate);
// walk all documents in the template
POSITION pos2 = pTemplate->GetFirstDocPosition();
while (pos2)
{
COleDocument* pDoc = (COleDocument*)pTemplate->GetNextDoc(pos2);
ASSERT_VALID(pDoc);
if (pDoc->IsKindOf(RUNTIME_CLASS(COleDocument)))
{
// walk all COleClientItem objects in the document
COleClientItem* pItem;
POSITION pos3 = pDoc->GetStartPosition();
while ((pItem = pDoc->GetNextClientItem(pos3)) != NULL)
{
if (pItem->m_pInPlaceFrame != NULL &&
pItem->m_pInPlaceFrame->m_lpActiveObject != NULL &&
pItem->m_pView != NULL &&
AfxIsDescendant(hWndFrame, pItem->m_pView->m_hWnd))
{
// Whew! Found an in-place active item that is
// part of this frame window hierarchy.
COleFrameHook* pNotifyHook = pItem->m_pInPlaceFrame;
if (!(pNotifyHook->*pNotifyFunc)(bParam))
return FALSE;
}
}
}
}
}
return TRUE;
}
void COleServerItem::OnUpdateItems()
{
COleDocument* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// update all of the embedded objects
POSITION pos = pDoc->GetStartPosition();
COleClientItem* pItem;
while ((pItem = pDoc->GetNextClientItem(pos)) != NULL)
{
// update any out-of-date item
if (pItem->m_lpObject->IsUpToDate() != NULL)
pItem->m_lpObject->Update();
}
}
BOOL COleServerItem::OnQueryUpdateItems()
{
COleDocument* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// update all of the embedded objects
POSITION pos = pDoc->GetStartPosition();
COleClientItem* pItem;
while ((pItem = pDoc->GetNextClientItem(pos)) != NULL)
{
// if any item is out-of-date, then this item is out-of-date
if (pItem->m_lpObject->IsUpToDate() != NULL)
return TRUE; // update needed
}
return FALSE; // update not needed
}
BOOL COleClientItem::CanActivate()
{
// don't allow in-place activations with iconic aspect items
if (m_nDrawAspect == DVASPECT_ICON)
return FALSE;
// if no view has been set, attempt to find suitable one.
// (necessary to get links to embeddings to work correctly)
if (m_pView == NULL)
{
// only use pActivateView if this item is in same document
_AFX_OLE_STATE* pOleState = _afxOleState;
if (pOleState->m_pActivateView != NULL &&
pOleState->m_pActivateView->GetDocument() != GetDocument())
{
pOleState->m_pActivateView = NULL; // not in same document
}
CView* pView = pOleState->m_pActivateView;
if (pView == NULL)
{
// no routing view available - try to use the one with focus
CWnd* pWnd = CWnd::GetFocus();
while (pWnd != NULL && !pWnd->IsKindOf(RUNTIME_CLASS(CView)))
pWnd = pWnd->GetParent();
pView = STATIC_DOWNCAST(CView, pWnd);
if (pView == NULL)
{
// still no routing view available - just use first one
COleDocument* pDoc = GetDocument();
POSITION pos = pDoc->GetFirstViewPosition();
pView = pDoc->GetNextView(pos);
}
}
m_pView = pView;
}
return m_pView->GetSafeHwnd() != NULL;
}
void CDocItem::Serialize(CArchive& ar)
{
if (ar.IsStoring())
{
ASSERT_VALID(m_pDocument);
// nothing to do, there is no data
}
else
{
// if no document connected yet, attach it from the archive
if (m_pDocument == NULL)
{
COleDocument* pContainerDoc = (COleDocument*)ar.m_pDocument;
ASSERT_VALID(pContainerDoc);
ASSERT_KINDOF(COleDocument, pContainerDoc);
pContainerDoc->AddItem(this);
ASSERT(pContainerDoc == m_pDocument);
}
}
// perform ASSERT_VALID at the end because COleServerItem::AssertValid
// checks the validity of the m_pDocument pointer
ASSERT_VALID(this);
}