Simple Event Monitor

Sources/Popover/EventMonitor.swift

@@ -0,0 +1,34 @@
+//
+//  File.swift
+//  
+//
+//  Created by Ivan Sapozhnik on 03.04.20.
+//
+
+import Cocoa
+
+class EventMonitor {
+    private var monitor: Any?
+    private let mask: NSEvent.EventTypeMask
+    private let handler: (NSEvent?) -> Void
+
+    init(mask: NSEvent.EventTypeMask, handler: @escaping (NSEvent?) -> Void) {
+        self.mask = mask
+        self.handler = handler
+    }
+
+    deinit {
+        stop()
+    }
+
+    func start() {
+        monitor = NSEvent.addGlobalMonitorForEvents(matching: mask, handler: handler)
+    }
+
+    func stop() {
+        guard let monitor = self.monitor else { return }
+
+        NSEvent.removeMonitor(monitor)
+        self.monitor = nil
+    }
+}

Sources/Popover/Popover.swift

@@ -9,38 +9,12 @@
 import Cocoa
 
 public class Popover: NSObject {
-    private class StatusItemContainerView: NSView {
-        enum Constants {
-            static let maxContainerSize: CGFloat = 22.0
-            static let maxContentHeight: CGFloat = 18.0
-        }
-
-        func embed(_ view: NSView) {
-            addSubview(view)
-
-            let selfFrame = NSRect(
-                x: 0,
-                y: 0,
-                width: max(NSWidth(view.bounds), Constants.maxContainerSize),
-                height: Constants.maxContainerSize
-            )
-            let contentFrame = NSRect(
-                x: 0,
-                y: (Constants.maxContainerSize-Constants.maxContentHeight) / 2,
-                width: NSWidth(view.bounds),
-                height: Constants.maxContentHeight
-            )
-
-            frame = selfFrame
-            view.frame = contentFrame
-        }
-    }
-
     public var item: NSStatusItem!
 
-    private var popoverWindowController: PopoverWindowController?
     private let windowConfiguration: PopoverConfiguration
+    private var popoverWindowController: PopoverWindowController?
     private var statusItemContainer: StatusItemContainerView?
+    private var eventMonitor: EventMonitor?
 
     private var isPopoverWindowVisible: Bool {
         return (popoverWindowController != nil) ? popoverWindowController!.windowIsOpen : false
@@ -48,6 +22,13 @@ public class Popover: NSObject {
 
     public init(with configuration: PopoverConfiguration) {
         windowConfiguration = configuration
+
+        super.init()
+
+        eventMonitor = EventMonitor(mask: [.rightMouseDown, .leftMouseDown], handler: { [weak self] event in
+            guard let self = self else { return }
+            self.dismissPopoverWindow()
+        })
     }
 
     public func presentPopover(with image: NSImage, contentViewController viewController: NSViewController) {
@@ -60,6 +41,16 @@ public class Popover: NSObject {
         popoverWindowController = PopoverWindowController(with: self, contentViewController: viewController, windowConfiguration: windowConfiguration)
     }
 
+    public func showPopoverWindow() {
+        popoverWindowController?.show()
+        eventMonitor?.start()
+    }
+
+    public func dismissPopoverWindow() {
+        popoverWindowController?.dismiss()
+        eventMonitor?.stop()
+    }
+
     private func configureStatusBarButton(with image: NSImage) {
         item = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
         guard let button = item.button else { return }
@@ -93,12 +84,4 @@ public class Popover: NSObject {
             showPopoverWindow()
         }
     }
-
-    public func dismissPopoverWindow() {
-        popoverWindowController?.dismiss()
-    }
-
-    public func showPopoverWindow() {
-        popoverWindowController?.show()
-    }
 }

Sources/Popover/StatusItemContainerView.swift

@@ -0,0 +1,35 @@
+//
+//  File.swift
+//  
+//
+//  Created by Ivan Sapozhnik on 03.04.20.
+//
+
+import Cocoa
+
+class StatusItemContainerView: NSView {
+    enum Constants {
+        static let maxContainerSize: CGFloat = 22.0
+        static let maxContentHeight: CGFloat = 18.0
+    }
+
+    func embed(_ view: NSView) {
+        addSubview(view)
+
+        let selfFrame = NSRect(
+            x: 0,
+            y: 0,
+            width: max(NSWidth(view.bounds), Constants.maxContainerSize),
+            height: Constants.maxContainerSize
+        )
+        let contentFrame = NSRect(
+            x: 0,
+            y: (Constants.maxContainerSize-Constants.maxContentHeight) / 2,
+            width: NSWidth(view.bounds),
+            height: Constants.maxContentHeight
+        )
+
+        frame = selfFrame
+        view.frame = contentFrame
+    }
+}