[V3-Linux] Systray OnClick on initial icon click (#3907)

Support linux systrays first click to open

- Convert event handling to switch statement for better readability
- Fix menu event handlers to properly trigger open/close callbacks
- Update click behavior to use doubleClickHandler for Activate

CHANGELOG.md

mkdocs-website/docs/en/changelog.md

@@ -32,6 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   in [#3888](https://github.com/wailsapp/wails/pull/3888)
 
 ### Changed
+- Refactored systray click messaging to better align with user interactions by @atterpac in [#3907](https://github.com/wailsapp/wails/pull/3907)
 - Asset embed to include `all:frontend/dist` to support frameworks that generate subfolders by @atterpac in [#3887](https://github.com/wailsapp/wails/pull/3887)
 - Taskfile refactor by [leaanthony](https://github.com/leaanthony) in [#3748](https://github.com/wailsapp/wails/pull/3748)
 - Upgrade to `go-webview2` v1.0.16 by [leaanthony](https://github.com/leaanthony)

v3/examples/systray/main.go

@@ -92,6 +92,17 @@ func main() {
 	})
 
 	systemTray.SetMenu(myMenu)
+	systemTray.OnClick(func() {
+		println("System tray clicked!")
+	})
+
+	systemTray.OnDoubleClick(func() {
+		println("System tray double clicked!")
+	})
+
+	systemTray.OnRightClick(func() {
+		println("System tray right clicked!")
+	})
 
 	//systemTray.AttachWindow(window).WindowOffset(5)
 

v3/pkg/application/systemtray_linux.go

@@ -421,7 +421,7 @@ func newSystemTrayImpl(s *SystemTray) systemTrayImpl {
 }
 
 func (s *linuxSystemTray) openMenu() {
-	// FIXME: Use DBUS to open?
+	// FIXME: Emit com.canonical to open?
 	globalApplication.info("systray error: openMenu not implemented on Linux")
 }
 
@@ -622,17 +622,19 @@ func (s *linuxSystemTray) GetProperty(id int32, name string) (value dbus.Variant
 
 // Event is com.canonical.dbusmenu.Event method.
 func (s *linuxSystemTray) Event(id int32, eventID string, data dbus.Variant, timestamp uint32) (err *dbus.Error) {
-	if eventID == "clicked" {
+	switch eventID {
+	case "clicked":
 		if item, ok := s.itemMap[id]; ok {
 			InvokeAsync(item.menuItem.handleClick)
 		}
+	case "opened":
+		if s.parent.clickHandler != nil {
+			s.parent.clickHandler()
 		}
-	if eventID == "opened" {
 		if s.parent.onMenuOpen != nil {
 			s.parent.onMenuOpen()
 		}
-	}
+	case "closed":
-	if eventID == "closed" {
 		if s.parent.onMenuClose != nil {
 			s.parent.onMenuClose()
 		}
@@ -698,14 +700,16 @@ func (s *linuxSystemTray) GetLayout(parentID int32, recursionDepth int32, proper
 
 // Activate implements org.kde.StatusNotifierItem.Activate method.
 func (s *linuxSystemTray) Activate(x int32, y int32) (err *dbus.Error) {
-	s.parent.clickHandler()
+	if s.parent.doubleClickHandler != nil {
+		s.parent.doubleClickHandler()
+	}
 	return
 }
 
 // ContextMenu is org.kde.StatusNotifierItem.ContextMenu method
 func (s *linuxSystemTray) ContextMenu(x int32, y int32) (err *dbus.Error) {
 	fmt.Println("ContextMenu", x, y)
-	return
+	return nil
 }
 
 func (s *linuxSystemTray) Scroll(delta int32, orientation string) (err *dbus.Error) {