On 25/07/2010, at 9:00 AM, mark wrote: > A problem which is driving me spastic: > I have an NSBrowser that allowes multiple selection. > When I double click one of the selected items, all other selected items > deselect. > I have set the doubleaction and action methods and correct target. These are > called AFTER the deselection. > I have tried to override doClick and that doesn't prevent the deselection. > Any ideas?
In general this is the expected behaviour. Most stuff that handles multiple selection doesn't wait to see if a click is going to end up as the first of a double-click, and so processes the first click in a straightforward way. Typically, this is to deselect everything except what was clicked (unless modifier keys are down that might extend or flip the selection). On the second click, the double-click is detected and the double action triggered. It is possible to be smarter when processing clicks and wait to see if a second click arrives within the double-click time before processing the first click, but you rarely see code that does this, since for one thing it seems unresponsive - every single-click will have no effect until the double-click period elapses. --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
