Swift:在NSStatusBar上右键/左键单击

Question

我正在构建一个NSStatusBar应用程序，希望根据用户在图标上单击的是向左还是向右来调用不同的函数。

这是我到目前为止所知道的：

let statusItem = NSStatusBar.systemStatusBar().statusItemWithLength(-1)

func applicationDidFinishLaunching(aNotification: NSNotification) {
    let icon = NSImage(named: "statusIcon")
    icon?.setTemplate(true)

    statusItem.image = icon
    statusItem.menu = statusMenu
}

这样，每次点击都会显示statusMenu。如何区分mouseEvents？

Answer 1

此代码段

func menuSelected (sender:AnyObject) {
  var clickMask: Int = 0
  if let clickEvent = NSApp.currentEvent! {  // see what caused calling of the menu action
    // modifierFlags contains a number with bits set for various modifier keys
    // ControlKeyMask is the enum for the Ctrl key
    // use logical and with the raw values to find if the bit is set in modifierFlags
    clickMask = Int(clickEvent.modifierFlags.rawValue) & Int(NSEventModifierFlags.ControlKeyMask.rawValue)
  }
  if clickMask != 0 { ... } // click with Ctrl pressed
}

从我的代码中检查ctrl-click。它位于从菜单项调用的方法中，如下所示：

let item = NSMenuItem(title: title, action: Selector("menuSelected:"), keyEquivalent: "")