NSTableView hit tab to jump from row to row while editing

Question

I've got an NSTableView. While editing, if I hit tab it automatically jumps me to the next column. This is fantastic, but when I'm editing the field in the last column and I hit tab, I'd like focus to jump to the first column of the NEXT row.

Any suggestions?

Thanks to Michael for the starting code, it was very close to what ended up working! Here is the final code that I used, hope it will be helpful to someone else:

- (void) textDidEndEditing: (NSNotification *) notification {
    NSInteger editedColumn = [self editedColumn];
    NSInteger editedRow = [self editedRow];
    NSInteger lastColumn = [[self tableColumns] count] - 1;

    NSDictionary *userInfo = [notification userInfo];

    int textMovement = [[userInfo valueForKey:@"NSTextMovement"] intValue];

    [super textDidEndEditing: notification];

    if ( (editedColumn == lastColumn)
        && (textMovement == NSTabTextMovement)
        && editedRow < ([self numberOfRows] - 1)
        )
    {
        // the tab key was hit while in the last column, 
        // so go to the left most cell in the next row
        [self selectRowIndexes:[NSIndexSet indexSetWithIndex:(editedRow+1)] byExtendingSelection:NO];
        [self editColumn: 0 row: (editedRow + 1)  withEvent: nil select: YES];
    }

}

Answer 1

You can do this without subclassing by implementing control:textView:doCommandBySelector:

-(BOOL)control:(NSControl *)control textView:(NSTextView *)textView doCommandBySelector:(SEL)commandSelector {

    if(commandSelector == @selector(insertTab:) ) {
        // Do your thing
        return YES;
    } else {
        return NO;
    }   
}

(The NSTableViewDelegate implements the NSControlTextEditingDelegate protocol, which is where this method is defined)

This method responds to the actual keypress, so you're not constrained to the textDidEndEditing method, which only works for text cells.