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import Cocoa
/// This helps manage the stateful nature of NSCursor hiding and unhiding.
class Cursor {
private static var counter: UInt = 0
static var isVisible: Bool {
counter == 0
}
static func hide() {
counter += 1
NSCursor.hide()
}
/// Unhide the cursor. Returns true if the cursor was previously hidden.
static func unhide() -> Bool {
// Its always safe to call unhide when the counter is zero because it
// won't go negative.
NSCursor.unhide()
if (counter > 0) {
counter -= 1
return true
}
return false
}
static func unhideCompletely() -> UInt {
let counter = self.counter
for _ in 0..<counter {
assert(unhide())
}
assert(self.counter == 0)
return counter
}
}
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