In IB I connect a button to a VC and set the segue kind to 'Popover'. Now I have a problem. How do I get the NSPopover and its delegate?
-(void)prepareForSegue:(NSStoryboardSegue *)segue sender:(id)sender {
NSLog(@"%s: %@", __func__, segue.destinationController);
NSViewController* vc = segue.destinationController;
}
I tested this:
func handleClosePopover() {
print("Popover was closed")
}
class SeguedViewController: NSViewController, NSPopoverDelegate {
@IBOutlet weak var label: NSTextField!
var labelContent : String?
var delegate: InitialViewController? // Must be InitialViewController
override func viewDidLoad() {
super.viewDidLoad()
// Do view setup here.
label.stringValue = labelContent ?? "empty"
}
func popoverDidClose(_ notification: Notification) {
delegate?.handleClosePopover()
}
}
Hope that helps.
This sure works. I thought I could get the instance of NSPopover somehow and set its delegate property instead.
Could you explain precisely what you mean by "getting" the NSPopover and its delegate ? Which delegate ?
If I understand what you want, I would define a class for the popover and declare a delegate there (that's Swift, but easy to adapt to objC):
class SeguedViewController: NSViewController {
@IBOutlet weak var label: NSTextField!
var labelContent : String?
var delegate: NSViewController?
override func viewDidLoad() {
super.viewDidLoad()
// Do view setup here.
label.stringValue = labelContent ?? "empty"
}
}
And define them in tha calling VC
override func prepare(for segue: NSStoryboardSegue, sender: Any?) {
if let dest = segue.destinationController as? SeguedViewController {
dest.labelContent = "I passed text"
dest.delegate = self // For instance
}
}
Sorry for not stating my question clear enough. What I want is NSPopoverDelegate so that I know when the popover is closed so that I can perform some work accordingly.
I tested this:
func handleClosePopover() {
print("Popover was closed")
}
class SeguedViewController: NSViewController, NSPopoverDelegate {
@IBOutlet weak var label: NSTextField!
var labelContent : String?
var delegate: InitialViewController? // Must be InitialViewController
override func viewDidLoad() {
super.viewDidLoad()
// Do view setup here.
label.stringValue = labelContent ?? "empty"
}
func popoverDidClose(_ notification: Notification) {
delegate?.handleClosePopover()
}
}
Hope that helps.
This sure works. I thought I could get the instance of NSPopover somehow and set its delegate property instead.