void
BListView::MouseDown(BPoint where)
{
if (!IsFocus()) {
MakeFocus();
Sync();
Window()->UpdateIfNeeded();
}
BMessage* message = Looper()->CurrentMessage();
int32 index = IndexOf(where);
int32 buttons = 0;
if (message != NULL)
message->FindInt32("buttons", &buttons);
int32 modifiers = 0;
if (message != NULL)
message->FindInt32("modifiers", &modifiers);
// If the user double (or more) clicked within the current selection,
// we don't change the selection but invoke the selection.
// TODO: move this code someplace where it can be shared everywhere
// instead of every class having to reimplement it, once some sane
// API for it is decided.
BPoint delta = where - fTrack->drag_start;
bigtime_t sysTime;
Window()->CurrentMessage()->FindInt64("when", &sysTime);
bigtime_t timeDelta = sysTime - fTrack->last_click_time;
bigtime_t doubleClickSpeed;
get_click_speed(&doubleClickSpeed);
bool doubleClick = false;
if (timeDelta < doubleClickSpeed
&& fabs(delta.x) < kDoubleClickThreshold
&& fabs(delta.y) < kDoubleClickThreshold
&& fTrack->item_index == index) {
doubleClick = true;
}
if (doubleClick && index >= fFirstSelected && index <= fLastSelected) {
fTrack->drag_start.Set(INT32_MAX, INT32_MAX);
Invoke();
return BView::MouseDown(where);
}
if (!doubleClick) {
fTrack->drag_start = where;
fTrack->last_click_time = system_time();
fTrack->item_index = index;
fTrack->was_selected = index >= 0 ? ItemAt(index)->IsSelected() : false;
fTrack->try_drag = true;
MouseDownThread<BListView>::TrackMouse(this,
&BListView::_DoneTracking, &BListView::_Track);
}
if (index >= 0) {
if (fListType == B_MULTIPLE_SELECTION_LIST) {
if ((modifiers & B_SHIFT_KEY) != 0) {
// select entire block
// TODO: maybe review if we want it like in Tracker
// (anchor item)
if (index >= fFirstSelected && index < fLastSelected) {
// clicked inside of selected items block, deselect all
// but from the first selected item to the clicked item
DeselectExcept(fFirstSelected, index);
} else {
Select(std::min(index, fFirstSelected), std::max(index,
fLastSelected));
}
} else {
if ((modifiers & B_COMMAND_KEY) != 0) {
// toggle selection state of clicked item (like in Tracker)
// toggle selection state of clicked item
if (ItemAt(index)->IsSelected())
Deselect(index);
else
Select(index, true);
} else
Select(index);
}
} else {
// toggle selection state of clicked item
if ((modifiers & B_COMMAND_KEY) != 0 && ItemAt(index)->IsSelected())
Deselect(index);
else
Select(index);
}
} else if ((modifiers & B_COMMAND_KEY) == 0)
DeselectAll();
BView::MouseDown(where);
}
void
NamesView::MouseMoved (BPoint myPoint, uint32 transitcode, const BMessage *dragMessage)
{
if ((dragMessage != NULL) && (dragMessage->HasRef("refs")))
{
// make sure the ref isn't a dir
entry_ref ref;
dragMessage->FindRef("refs", &ref);
BDirectory dir (&ref);
if (dir.InitCheck() != B_OK)
{
int32 nameIndex (IndexOf(myPoint));
if (nameIndex >= 0)
Select(nameIndex);
}
}
else if (fTracking)
{
if (transitcode == B_INSIDE_VIEW)
{
BListItem *item = ItemAt (IndexOf(myPoint));
if (item)
{
BListItem *lastitem (NULL);
int32 first (CurrentSelection (0));
int32 last (first);
int32 i (1);
while ((last = CurrentSelection(i++)) != -1)
lastitem = ItemAt(last);
if (lastitem)
last = IndexOf(lastitem);
else
last = first;
int32 current (IndexOf (myPoint));
if (current >= 0)
{
if (current < first)
{
// sweep up
Select (current, last, true);
}
else if (current > last)
{
// sweep down
Select (first, current, true);
}
else if (fCurrentindex > current)
{
// backtrack up
DeselectExcept (first, current);
}
else if (fCurrentindex < current)
{
// backtrack down
DeselectExcept (current, last);
}
fCurrentindex = current;
}
}
}
}
else
BListView::MouseMoved (myPoint, transitcode, dragMessage);
}
