How to open NSSavePanel in FIFinderSync

Question

I'm make a Finder extension which can create file at selected folder.I have already set the "Permission/Access" of "User Selected File" to "Read/Write". But the panel doesn't display.

    override func menu(for menuKind: FIMenuKind) -> NSMenu {
        // Produce a menu for the extension.
        let menu = NSMenu(title: "")
        menu.addItem(withTitle: "Example Menu Item", action: #selector(sampleAction(_:)), keyEquivalent: "")
        return menu
    }
    
    @IBAction func sampleAction(_ sender: AnyObject?) {
        let savePanel = NSSavePanel()
        savePanel.canCreateDirectories = true
        savePanel.showsTagField = false
        savePanel.nameFieldStringValue = "newfile.txt"
        savePanel.level = NSWindow.Level(rawValue: Int(CGWindowLevelForKey(.modalPanelWindow)))
        savePanel.begin { (result) in
            if result.rawValue == NSApplication.ModalResponse.OK.rawValue {
                //write file
            }
        }
    }

And I set FIFinderSyncController.default().directoryURLs = [URL(fileURLWithPath: "/")]

I found some Finder extension App like 'Easy New File' can open save panel. How they achieve it?

Answer 1

Add NSApp.activate(ignoringOtherApps: true) and DispatchQueue.main.async .

        NSApp.activate(ignoringOtherApps: true)
        DispatchQueue.main.async {
            let savePanel = NSSavePanel()
            savePanel.directoryURL = URL(fileURLWithPath: target.path)
            savePanel.canCreateDirectories = true
            savePanel.showsTagField = false
            savePanel.nameFieldStringValue = "newfile".localized
            savePanel.level = NSWindow.Level(rawValue: Int(CGWindowLevelForKey(.modalPanelWindow)))
            if (savePanel.runModal() == NSApplication.ModalResponse.OK),let url = savePanel.url{
                //wirte file to url
            }
        }