From 05fbfdaf6273962966105524c0b7c5ce97fa89d6 Mon Sep 17 00:00:00 2001
From: Adrian Campos <adriancampos@users.noreply.github.com>
Date: Wed, 24 Jun 2020 15:50:55 -0700
Subject: [PATCH] Add support for popup menu open/close event in Windows

---
 systray.go         |  6 ++++++
 systray_windows.go | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/systray.go b/systray.go
index 729b521a..d6a1cea1 100644
--- a/systray.go
+++ b/systray.go
@@ -15,6 +15,12 @@ import (
 var (
 	log = golog.LoggerFor("systray")
 
+	// MenuOpenedCh is the channel which will be notified when the popup menu is shown
+	MenuOpenedCh = make(chan struct{})
+
+	// MenuClosedCh is the channel which will be notified when the popup menu is closed
+	MenuClosedCh = make(chan struct{})
+	
 	systrayReady  func()
 	systrayExit   func()
 	menuItems     = make(map[int32]*MenuItem)
diff --git a/systray_windows.go b/systray_windows.go
index 02b5e6d9..faf0e188 100644
--- a/systray_windows.go
+++ b/systray_windows.go
@@ -599,6 +599,11 @@ func (t *winTray) hideMenuItem(menuItemId, parentId uint32) error {
 }
 
 func (t *winTray) showMenu() error {
+	select {
+	case MenuOpenedCh <- struct{}{}:
+	default:
+	}
+
 	const (
 		TPM_BOTTOMALIGN = 0x0020
 		TPM_LEFTALIGN   = 0x0000
@@ -623,6 +628,11 @@ func (t *winTray) showMenu() error {
 		return err
 	}
 
+	select {
+	case MenuClosedCh <- struct{}{}:
+	default:
+	}
+
 	return nil
 }