inline HRESULT __stdcall ISimpleDropTarget::DragOver(DWORD grfKeyState, POINTL ptl, DWORD * pdwEffect)
{
POINT pt;
pt.x = ptl.x;
pt.y = ptl.y;
if (m_pdth && PrevFancyRenderer) {
m_pdth->DragOver(&pt, *pdwEffect);
}
bool canDrop = m_RightData && AllowDrop(ptl);
if (canDrop) {
*pdwEffect = OnDragOver(grfKeyState, ptl);
}
if (m_DataObject && m_pdth) {
m_pdth->Show(canDrop);
}
if (!canDrop)
{
*pdwEffect = DROPEFFECT_NONE;
}
return S_OK;
}
inline HRESULT __stdcall ISimpleDropTarget::DragEnter(IDataObject * pDataObject, DWORD grfKeyState, POINTL ptl, DWORD * pdwEffect)
{
POINT pt;
pt.x = ptl.x;
pt.y = ptl.y;
if (m_pdth && PrevFancyRenderer) {
m_pdth->DragEnter(m_hwnd, pDataObject, &pt, *pdwEffect);
}
m_DataObject = pDataObject;
dragInAction = true;
m_RightData = QueryDataObject(pDataObject);
bool canDrop = m_RightData && AllowDrop(ptl);
if (canDrop)
{
SetFocus(m_hwnd);
auto files = GetFiles(pDataObject);
*pdwEffect = OnDragEnter(files, grfKeyState, ptl);
}
else
{
*pdwEffect = DROPEFFECT_NONE;
}
return S_OK;
}
PRBool
nsEditorHookUtils::DoAllowDropHook(nsIDOMDocument *aDoc, nsIDOMEvent *aEvent,
nsIDragSession *aSession)
{
nsCOMPtr<nsISimpleEnumerator> enumerator;
GetHookEnumeratorFromDocument(aDoc, getter_AddRefs(enumerator));
if (!enumerator)
return PR_TRUE;
PRBool hasMoreHooks = PR_FALSE;
while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks)) && hasMoreHooks)
{
nsCOMPtr<nsISupports> isupp;
if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
break;
nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
if (override)
{
PRBool allowDrop = PR_TRUE;
nsresult hookResult = override->AllowDrop(aEvent, aSession, &allowDrop);
NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in AllowDrop");
if (!allowDrop)
return PR_FALSE;
}
}
return PR_TRUE;
}
EVisibility SDropTarget::GetDragOverlayVisibility() const
{
if ( FSlateApplication::Get().IsDragDropping() )
{
if ( AllowDrop(FSlateApplication::Get().GetDragDroppingContent()) || (bIsDragOver && bIsDragEventRecognized) )
{
return EVisibility::HitTestInvisible;
}
}
return EVisibility::Hidden;
}
inline HRESULT __stdcall ISimpleDropTarget::Drop(IDataObject * pDataObject, DWORD grfKeyState, POINTL ptl, DWORD * pdwEffect)
{
POINT pt;
pt.x = ptl.x;
pt.y = ptl.y;
if (m_pdth) {
m_pdth->Drop(pDataObject, &pt, *pdwEffect);
}
m_DataObject = NULL;
dragInAction = false;
bool canDrop = m_RightData && AllowDrop(ptl);
if (canDrop)
{
auto files = GetFiles(pDataObject);
OnDragDrop(files, grfKeyState, ptl);
}
else
{
*pdwEffect = DROPEFFECT_NONE;
}
return S_OK;
}
void InventoryViewController::DragObserver(InventoryView* container, Rocket::Core::Element* element)
{
std::vector<InventoryView*>::iterator itView = _views.begin();
std::vector<InventoryView*>::iterator end = _views.end();
for (; itView != end && (!((*(*itView)) == element->GetParentNode())) ; ++itView);
if (itView != _views.end())
{
InventoryView& view = (*(*itView));
if (AllowDrop(view, *container))
{
InventoryObject* object = view.GetObjectFromId(std::string(element->GetId().CString()));
if (container->GetInventory().CanCarry(object) && CanSwap(object))
{
view.GetInventory().DelObject(object);
container->GetInventory().AddObject(object);
view.UpdateView();
container->UpdateView();
}
}
}
}
FReply SDropTarget::OnDragOver(const FGeometry& MyGeometry, const FDragDropEvent& DragDropEvent)
{
// Handle the reply if we are allowed to drop, otherwise do not handle it.
return AllowDrop(DragDropEvent.GetOperation()) ? FReply::Handled() : FReply::Unhandled();
}