//
/// Handle the DRAGLISTMSGSTRING notification by calling virtual functions
/// based on the notification message.
//
/// Responds to the DL_BEGINDRAG, DL_DRAGGING, DL_DROPPED, and DL_CANCELDRAG
/// messages by calling the BeginDrag, Dragging, Dropped, and CancelDrag functions
/// respectively.
//
TResult
TDragList::DragNotify(TParam1, TParam2 lp)
{
DRAGLISTINFO * info = (DRAGLISTINFO *)lp;
if (info) {
TPoint p = info->ptCursor;
int item = ItemFromPoint(p);
switch (info->uNotification) {
case DL_BEGINDRAG:
return BeginDrag(item, p);
case DL_DRAGGING:
return Dragging(item, p);
case DL_DROPPED:
Dropped(item, p);
break;
case DL_CANCELDRAG:
CancelDrag(item, p);
break;
default:
// Should not ever happen.
///TH perhaps throw an exception?
break;
}
}
return 0;
}
status_t
TBarView::DragStart()
{
if (!Dragging())
return B_OK;
BPoint loc;
uint32 buttons;
GetMouse(&loc, &buttons);
if (fExpando && fExpando->Frame().Contains(loc)) {
ConvertToScreen(&loc);
BPoint expandoLocation = fExpando->ConvertFromScreen(loc);
TTeamMenuItem* item = fExpando->TeamItemAtPoint(expandoLocation);
if (fLastDragItem)
init_tracking_hook(fLastDragItem, NULL, NULL);
if (item != NULL) {
if (item == fLastDragItem)
return B_OK;
fLastDragItem = item;
}
}
return B_OK;
}
void
TBarView::DragStop(bool full)
{
if (!Dragging())
return;
//
// revert the local click to open to
// the launch state, cached in constructor
_menu_info_ptr_->click_to_open = fClickToOpen;
if (fExpando) {
if (fLastDragItem) {
init_tracking_hook(fLastDragItem, NULL, NULL);
fLastDragItem = NULL;
}
}
if (full) {
delete fDragMessage;
fDragMessage = NULL;
delete fCachedTypesList;
fCachedTypesList = NULL;
}
}
void
TBarView::CacheDragData(const BMessage* incoming)
{
if (!incoming)
return;
if (Dragging() && SpringLoadedFolderCompareMessages(incoming, fDragMessage))
return;
// disposes then fills cached drag message and
// mimetypes list
SpringLoadedFolderCacheDragData(incoming, &fDragMessage, &fCachedTypesList);
}
bool
TBarView::InvokeItem(const char* signature)
{
// sent from TeamMenuItem
if (Dragging() && AppCanHandleTypes(signature)) {
SendDragMessage(signature);
// invoking okay to toss memory
DragStop(true);
return true;
}
return false;
}
void
TBarView::DragStop(bool full)
{
if (!Dragging())
return;
if (fExpando) {
if (fLastDragItem) {
init_tracking_hook(fLastDragItem, NULL, NULL);
fLastDragItem = NULL;
}
}
if (full) {
delete fDragMessage;
fDragMessage = NULL;
delete fCachedTypesList;
fCachedTypesList = NULL;
}
}
void
TBarView::HandleDeskbarMenu(BMessage* messagewithdestination)
{
if (!Dragging())
return;
// in mini-mode
if (fVertical && fState != kExpandoState) {
// if drop is in the team menu, bail
if (fBarMenuBar->CountItems() >= 2) {
uint32 buttons;
BPoint location;
GetMouse(&location, &buttons);
if (fBarMenuBar->ItemAt(1)->Frame().Contains(location))
return;
}
}
if (messagewithdestination) {
entry_ref ref;
if (messagewithdestination->FindRef("refs", &ref) == B_OK) {
BEntry entry(&ref, true);
if (entry.IsDirectory()) {
// if the ref received (should only be 1) is a directory
// then add the drag refs to the directory
AddRefsToDeskbarMenu(DragMessage(), &ref);
} else
SendDragMessage(NULL, &ref);
}
} else {
// adds drag refs to top level in deskbar menu
AddRefsToDeskbarMenu(DragMessage(), NULL);
}
// clean up drag message and types list
DragStop(true);
}
status_t
TBarView::DragStart()
{
// always set the click to open state
// to false during a drag
// so that a release on a menu/menubar will not
// leave the menu open (ExpandoMenuBar, BarMenuBar)
// will get reset to actual initial system
// state on DragStop
_menu_info_ptr_->click_to_open = false;
if (!Dragging())
return B_OK;
BPoint loc;
uint32 buttons;
GetMouse(&loc, &buttons);
if (fExpando && fExpando->Frame().Contains(loc)) {
ConvertToScreen(&loc);
BPoint expandoloc = fExpando->ConvertFromScreen(loc);
TTeamMenuItem *item = fExpando->ItemAtPoint(expandoloc);
if (fLastDragItem)
init_tracking_hook(fLastDragItem, NULL, NULL);
if (item) {
if (item == fLastDragItem)
return B_OK;
fLastDragItem = item;
}
}
return B_OK;
}
