How do I communicate between my NSViewController and the NSTableViewCell when I select that cell on my tableView? On iOS you could use setSelected but in OSX it is totally different. The NSTableCellView class doesn't have any function like that. I might be missing something simple. How do I talk with that cell? I have a custom class cell and on my tableView controller, I got:
func tableView(tableView: NSTableView, shouldSelectRow row: Int) -> Bool {
let previousSelected = NSIndexSet(index: selectedRow)
selectedRow = row
let indset = NSIndexSet(index: row)
// animate row expansion
self.tableView.noteHeightOfRowsWithIndexesChanged(indset)
// animate back the previously selected
self.tableView.noteHeightOfRowsWithIndexesChanged(previousSelected)
return true
}
I also have the height of Row...
func tableView(tableView: NSTableView, heightOfRow row: Int) -> CGFloat {
if row == selectedRow{
return 90
}else{
return 40
}
}
What I'm trying to do is to let my cell know it got selected, so it can display different things when selected. Anyone ?
Selection doesn't operate on cells, it operates on rows. NSTableRowView has a selected property. It's generally responsible for drawing the selected appearance of table rows with its drawSelectionInRect() method.
How exactly does your cell change its behavior or appearance based on whether it's selected? Are you sure that shouldn't be done by the row, instead? Perhaps you should be using a custom subclass of NSTableRowView.
If you must, you can find the row view from the cell view. One way is to just assume the cell's superview is the row view, which it should be when it's not nil. Another approach is to ask the table view which row the cell is for using rowForView(self) and then ask the table view for the row view using rowViewAtRow(_:makeIfNecessary:).