119 lines
2.9 KiB
Swift
119 lines
2.9 KiB
Swift
import Cocoa
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import SwiftUI
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/// This helps manage the stateful nature of NSCursor hiding and unhiding.
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class Cursor {
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private static var counter: UInt = 0
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static var isVisible: Bool {
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counter == 0
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}
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static func hide() {
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counter += 1
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NSCursor.hide()
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}
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/// Unhide the cursor. Returns true if the cursor was previously hidden.
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static func unhide() -> Bool {
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// Its always safe to call unhide when the counter is zero because it
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// won't go negative.
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NSCursor.unhide()
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if counter > 0 {
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counter -= 1
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return true
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}
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return false
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}
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static func unhideCompletely() -> UInt {
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let counter = self.counter
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for _ in 0 ..< counter {
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assert(unhide())
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}
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assert(self.counter == 0)
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return counter
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}
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}
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enum CursorStyle {
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case `default`
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case grabIdle
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case grabActive
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case horizontalText
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case verticalText
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case link
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case resizeLeft
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case resizeRight
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case resizeUp
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case resizeDown
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case resizeUpDown
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case resizeLeftRight
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case contextMenu
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case crosshair
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case operationNotAllowed
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}
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extension CursorStyle {
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var cursor: NSCursor {
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switch self {
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case .default:
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return .arrow
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case .grabIdle:
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return .openHand
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case .grabActive:
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return .closedHand
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case .horizontalText:
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return .iBeam
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case .verticalText:
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return .iBeamCursorForVerticalLayout
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case .link:
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return .pointingHand
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case .resizeLeft:
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if #available(macOS 15.0, *) {
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return .columnResize(directions: .left)
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} else {
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return .resizeLeft
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}
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case .resizeRight:
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if #available(macOS 15.0, *) {
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return .columnResize(directions: .right)
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} else {
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return .resizeRight
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}
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case .resizeUp:
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if #available(macOS 15.0, *) {
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return .rowResize(directions: .up)
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} else {
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return .resizeUp
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}
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case .resizeDown:
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if #available(macOS 15.0, *) {
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return .rowResize(directions: .down)
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} else {
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return .resizeDown
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}
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case .resizeUpDown:
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if #available(macOS 15.0, *) {
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return .rowResize
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} else {
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return .resizeUpDown
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}
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case .resizeLeftRight:
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if #available(macOS 15.0, *) {
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return .columnResize
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} else {
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return .resizeLeftRight
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}
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case .contextMenu:
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return .contextualMenu
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case .crosshair:
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return .crosshair
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case .operationNotAllowed:
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return .operationNotAllowed
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}
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}
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}
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