Implementing "Show in Finder" button in Objective-C - objective-c

Question

In my application I would like to create a 'Show in Finder' button.
I have been able to figure out how to pop up a Finder window of that directory but haven't figured out how to highlight the file like the OS does.
Is this possible?

Answer 1

NSArray *fileURLs = [NSArray arrayWithObjects:fileURL1, /* ... */ nil];
[[NSWorkspace sharedWorkspace] activateFileViewerSelectingURLs:fileURLs];
stolen from
Launch OSX Finder window with specific files selected

Answer 2

You can use NSWorkspace method -selectFile:inFileViewerRootedAtPath: like this:
[[NSWorkspace sharedWorkspace] selectFile:fullPathString inFileViewerRootedAtPath:pathString];

Answer 3

Its worth mentioning that owen's method only works from osx 10.6 or later (Ref: https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSWorkspace_Class/Reference/Reference.html ).
So if your writing something to run on the older generations its probably better to do it in the way suggested by justin as its not been deprecated (yet).

Answer 4

// Place the following code within your Document subclass
// enable or disable the menu item called "Show in Finder"
override func validateUserInterfaceItem(anItem: NSValidatedUserInterfaceItem) -> Bool {
if anItem.action() == #selector(showInFinder) {
return self.fileURL?.path != nil;
} else {
return super.validateUserInterfaceItem(anItem)
}
}
// action for the "Show in Finder" menu item, etc.
#IBAction func showInFinder(sender: AnyObject) {
func showError() {
let alert = NSAlert()
alert.messageText = "Error"
alert.informativeText = "Sorry, the document couldn't be shown in the Finder."
alert.runModal()
}
// if the path isn't known, then show an error
let path = self.fileURL?.path
guard path != nil else {
showError()
return
}
// try to select the file in the Finder
let workspace = NSWorkspace.sharedWorkspace()
let selected = workspace.selectFile(path!, inFileViewerRootedAtPath: "")
if !selected {
showError()
}
}