OrangePot OrangePot - 5 years ago 172
Swift Question

NSOpenPanel as sheet

Ive looked around at other answers, but nothing seems to be helping my case.

I have a viewController class which contains an IBAction for a button. This button should open a NSOpenPanel as a sheet from that viewController:

class ViewController: NSViewController {
@IBAction func folderSelection(sender: AnyObject) {
var myFiledialog: NSOpenPanel = NSOpenPanel()
myFiledialog.prompt = "Select path"
myFiledialog.worksWhenModal = true
myFiledialog.allowsMultipleSelection = false
myFiledialog.canChooseDirectories = true
myFiledialog.canChooseFiles = false
myFiledialog.resolvesAliases = true

//myFiledialog.runModal()

myFiledialog.beginSheetModalForWindow(self.view.window!, completionHandler: nil)


var chosenpath = myFiledialog.URL
if (chosenpath!= nil)
{
var TheFile = chosenpath!.absoluteString!
println(TheFile)
//do something with TheFile
}
else
{
println("nothing chosen")
}
}
}


The problem comes from myFileDialog.beginSheetModalForWindow(..) , it works with the line above, but that is not a sheet effect

Answer Source

You need to call beginSheetModalForWindow from your panel on your window, and use a completion block:

let myFiledialog = NSOpenPanel()
myFiledialog.prompt = "Select path"
myFiledialog.worksWhenModal = true
myFiledialog.allowsMultipleSelection = false
myFiledialog.canChooseDirectories = true
myFiledialog.canChooseFiles = false
myFiledialog.resolvesAliases = true
myFiledialog.beginSheetModalForWindow(window, completionHandler: { num in
    if num == NSModalResponseOK {
        let path = myFiledialog.URL
        print(path)
    } else {
        print("nothing chosen")
    }
})
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