Embed a nice screensaver so we don't depend on XScreensaver

.github/workflows/platform_tests.yml

@@ -21,7 +21,7 @@ jobs:
         go-version: ${{ matrix.go-version }}
 
     - name: Get dependencies
-      run: sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev bc
+      run: sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev bc libpam-dev
       if: ${{ runner.os == 'Linux' }}
 
     - name: Tests

.github/workflows/static_analysis.yml

@@ -16,7 +16,7 @@ jobs:
 
     - name: Get dependencies
       run: |
-        sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev
+        sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev libpam-dev
         go install golang.org/x/tools/cmd/goimports@latest
         go install github.com/fzipp/gocyclo/cmd/gocyclo@latest
         go install golang.org/x/lint/golint@latest

desk.go

@@ -25,6 +25,9 @@ type Desktop interface {
 
 	Desktop() int
 	SetDesktop(int)
+
+	DelayScreenSaver()
+	TriggerScreenSaver()
 }
 
 var instance Desktop

go.mod

@@ -3,11 +3,12 @@ module fyshos.com/fynedesk
 go 1.19
 
 require (
-	fyne.io/fyne/v2 v2.5.5-0.20250208132135-967702162d53
+	fyne.io/fyne/v2 v2.5.5-0.20250208220124-36dce94b9595
 	github.com/BurntSushi/xgb v0.0.0-20201008132610-5f9e7b3c49cd
 	github.com/BurntSushi/xgbutil v0.0.0-20160919175755-f7c97cef3b4e
 	github.com/FyshOS/appie v0.0.0-20250103211310-00f097d8e19d
 	github.com/FyshOS/backgrounds v0.0.0-20230616202904-0a8b6ebaa184
+	github.com/FyshOS/saver v0.0.0-20250125211336-528339462781
 	github.com/Knetic/govaluate v3.0.0+incompatible
 	github.com/disintegration/imaging v1.6.2
 	github.com/godbus/dbus/v5 v5.1.0

go.sum

@@ -37,8 +37,8 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-fyne.io/fyne/v2 v2.5.5-0.20250208132135-967702162d53 h1:qXq2uL+bCtlg9uNnlXGdj+9eamAjMhuL4fQVDJrHVqo=
-fyne.io/fyne/v2 v2.5.5-0.20250208132135-967702162d53/go.mod h1:6/uEYg4FEhspAcWgsokutm9wFMHDNSYuEHCKTYWSho8=
+fyne.io/fyne/v2 v2.5.5-0.20250208220124-36dce94b9595 h1:oWbNIUNmmRx3DjnGQ5lKzKGvmEemtxcSrcAZKvSY/IE=
+fyne.io/fyne/v2 v2.5.5-0.20250208220124-36dce94b9595/go.mod h1:6/uEYg4FEhspAcWgsokutm9wFMHDNSYuEHCKTYWSho8=
 fyne.io/systray v1.11.0 h1:D9HISlxSkx+jHSniMBR6fCFOUjk1x/OOOJLa9lJYAKg=
 fyne.io/systray v1.11.0/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
 github.com/ActiveState/termtest/conpty v0.5.0 h1:JLUe6YDs4Jw4xNPCU+8VwTpniYOGeKzQg4SM2YHQNA8=
@@ -59,6 +59,8 @@ github.com/FyshOS/appie v0.0.0-20250103211310-00f097d8e19d h1:bkIQPpxGMalOufoLbL
 github.com/FyshOS/appie v0.0.0-20250103211310-00f097d8e19d/go.mod h1:Gtvb1fKDXbE9HjMtoYdB2MPSSGy6PdtMl0TC9dSF8q0=
 github.com/FyshOS/backgrounds v0.0.0-20230616202904-0a8b6ebaa184 h1:Za0NHFsT0CCXf/X4hEaywjvEECccrM/xVVL8BzAy6JI=
 github.com/FyshOS/backgrounds v0.0.0-20230616202904-0a8b6ebaa184/go.mod h1:cOUmJ3HUVmH3W3u9Gj5hM73ZgrDxGNHKMr5T/sBKqLU=
+github.com/FyshOS/saver v0.0.0-20250125211336-528339462781 h1:jGmHNeimIf4DDEe8jkoUNX9r10+qGtkUG+3PMpjGSEs=
+github.com/FyshOS/saver v0.0.0-20250125211336-528339462781/go.mod h1:yIuAuYqnEyKaiNU4MD4xmyLcZl9QdDr2uTmT7lt02tI=
 github.com/Knetic/govaluate v3.0.0+incompatible h1:7o6+MAPhYTCF0+fdvoz1xDedhRb4f6s9Tn1Tt7/WTEg=
 github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=

internal/ui/dbus/ScreenSaver.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<node name="/ScreenSaver">
+<interface name="org.freedesktop.ScreenSaver">
+    <method name="Inhibit">
+        <arg direction="in" type="s" name="application_name"/>
+        <arg direction="in" type="s" name="reason_for_inhibit"/>
+        <arg direction="out" type="u" name="cookie"/>
+    </method>
+    <method name="UnInhibit">
+        <arg direction="in" type="u" name="cookie"/>
+    </method>
+</interface>
+</node>

internal/ui/desk.go

@@ -115,7 +115,12 @@ func (l *desktop) ShowMenuAt(menu *fyne.Menu, pos fyne.Position) {
 }
 
 func (l *desktop) updateBackgrounds(path string) {
-	l.root.Content().(*fyne.Container).Objects[0].(*background).updateBackground(path)
+	root := l.root.Content().(*fyne.Container).Objects[0]
+	if back, ok := root.(*background); ok {
+		back.updateBackground(path)
+	} else { // embed mode has another container
+		root.(*fyne.Container).Objects[0].(*background).updateBackground(path)
+	}
 }
 
 func (l *desktop) createPrimaryContent() fyne.CanvasObject {
@@ -150,6 +155,7 @@ func (l *desktop) RecentApps() []appie.AppData {
 
 func (l *desktop) Run() {
 	go l.wm.Run()
+	go l.watchScreenActivity()
 	l.run() // use the configured run method
 }
 
@@ -343,19 +349,9 @@ func (l *desktop) registerShortcuts() {
 	l.AddShortcut(fynedesk.NewShortcut("Calculator", fynedesk.KeyCalculator, 0),
 		l.calculator)
 	l.AddShortcut(fynedesk.NewShortcut("Lock screen", fyne.KeyL, fynedesk.UserModifier),
-		l.lockScreen)
-}
-
-func (l *desktop) startXscreensaver() {
-	_, err := exec.LookPath("xscreensaver")
-	if err != nil {
-		fyne.LogError("xscreensaver command not found", err)
-		return
-	}
-	err = exec.Command("xscreensaver", "-no-splash").Start()
-	if err != nil {
-		fyne.LogError("Failed to lock screen", err)
-	}
+		func() {
+			l.TriggerScreenSaver()
+		})
 }
 
 // Screens returns the screens provider of the current desktop environment for access to screen functionality.
@@ -374,7 +370,9 @@ func NewDesktop(app fyne.App, mgr fynedesk.WindowManager, icons appie.Provider,
 
 	desk.setupRoot()
 	wm.StartAuthAgent()
-	go desk.startXscreensaver()
+	if desk.Settings().ScreenSaverType() == "XScreensaver" {
+		go desk.startXscreensaver()
+	}
 	return desk
 }
 
@@ -383,12 +381,14 @@ func NewDesktop(app fyne.App, mgr fynedesk.WindowManager, icons appie.Provider,
 // If run during CI for testing it will return an in-memory window using the
 // fyne/test package.
 func NewEmbeddedDesktop(app fyne.App, icons appie.Provider) fynedesk.Desktop {
-	desk := newDesktop(app, &embededWM{}, icons)
+	wm := &embededWM{}
+	desk := newDesktop(app, wm, icons)
 	desk.run = desk.runEmbed
 	desk.showMenu = desk.showMenuEmbed
 
 	desk.root = desk.newDesktopWindowEmbed()
-	desk.root.SetContent(desk.createPrimaryContent())
+	over := wm.setWindow(desk.root)
+	desk.root.SetContent(container.NewStack(desk.createPrimaryContent(), over))
 	return desk
 }
 
@@ -411,16 +411,17 @@ func (l *desktop) calculator() {
 	}
 }
 
-func (l *desktop) lockScreen() {
-	_, err := exec.LookPath("xscreensaver-command")
-	if err != nil {
-		fyne.LogError("xscreensaver-command not found", err)
-		l.WindowManager().Blank()
-		return
-	}
-	err = exec.Command("xscreensaver-command", "-lock").Start()
-	if err != nil {
-		fyne.LogError("Failed to lock screen", err)
-		l.WindowManager().Blank()
-	}
-}
+//func (l *desktop) runCommand() {
+//	w := l.app.NewWindow("Run Command")
+//	input := widget.NewEntry()
+//	// TODO add history etc...
+//	run := widget.NewButton("Run", func() {
+//
+//	})
+//	run.Importance = widget.HighImportance
+//
+//	w.SetContent(container.NewVBox(widget.NewLabel("Enter command to run:"),
+//		container.NewBorder(nil, nil, nil, run, input)))
+//	w.Resize(fyne.NewSize(250, 40))
+//	w.Show()
+//}

internal/ui/desk_test.go

@@ -66,7 +66,7 @@ func TestBackgroundChange(t *testing.T) {
 	l.settings = wmTest.NewSettings()
 	l.setupRoot()
 
-	bg := l.root.Content().(*fyne.Container).Objects[0].(*background)
+	bg := l.root.Content().(*fyne.Container).Objects[0].(*fyne.Container).Objects[0].(*background)
 
 	workingDir, err := os.Getwd()
 	if err != nil {

internal/ui/embed_wm.go

@@ -2,14 +2,21 @@ package ui
 
 import (
 	"image"
-
-	"fyne.io/fyne/v2"
+	"image/color"
 
 	"fyshos.com/fynedesk"
+	"github.com/FyshOS/saver"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	deskDriver "fyne.io/fyne/v2/driver/desktop"
+	"fyne.io/fyne/v2/widget"
 )
 
 type embededWM struct {
 	windows []fynedesk.Window
+	root    fyne.Window
 }
 
 func (e *embededWM) AddWindow(win fynedesk.Window) {
@@ -79,3 +86,55 @@ func (e *embededWM) Close() {
 		windows[0].Close() // ensure our root is asked to close as well
 	}
 }
+
+var visible bool
+
+func (e *embededWM) ShowScreensaver(s *saver.ScreenSaver) {
+	if visible {
+		return
+	}
+
+	visible = true
+	over := container.NewStack(canvas.NewRectangle(color.Black))
+
+	s.OnUnlocked = func() {
+		visible = false
+		e.root.Canvas().Overlays().Remove(over)
+	}
+
+	over.Add(s.MakeUI(e.root))
+	over.Resize(e.root.Canvas().Size())
+	e.root.Canvas().Overlays().Add(over)
+}
+
+func (e *embededWM) setWindow(win fyne.Window) fyne.CanvasObject {
+	e.root = win
+
+	return newSaverMonitor(fynedesk.Instance().DelayScreenSaver)
+}
+
+type saverMonitor struct {
+	widget.BaseWidget
+
+	cb func()
+}
+
+func newSaverMonitor(cb func()) fyne.CanvasObject {
+	s := &saverMonitor{cb: cb}
+	s.ExtendBaseWidget(s)
+	return s
+}
+
+func (s *saverMonitor) CreateRenderer() fyne.WidgetRenderer {
+	return widget.NewSimpleRenderer(canvas.NewRectangle(color.Transparent))
+}
+
+func (s *saverMonitor) MouseIn(*deskDriver.MouseEvent) {
+}
+
+func (s *saverMonitor) MouseMoved(*deskDriver.MouseEvent) {
+	s.cb()
+}
+
+func (s *saverMonitor) MouseOut() {
+}

internal/ui/menu.go

@@ -109,11 +109,14 @@ func (w *widgetPanel) showAccountMenu(_ fyne.CanvasObject) {
 			w2.Close()
 		}}}
 	isEmbed := w.desk.(*desktop).root.Title() != RootWindowName
+	items1 = append(items1, &widget.Button{Icon: wmtheme.LockIcon, Importance: widget.LowImportance, OnTapped: func() {
+		w2.Close()
+		go func() {
+			time.Sleep(time.Millisecond * 300)
+			w.desk.TriggerScreenSaver()
+		}()
+	}})
 	if !isEmbed {
-		items1 = append(items1, &widget.Button{Icon: wmtheme.LockIcon, Importance: widget.LowImportance, OnTapped: func() {
-			w2.Close()
-			w.desk.(*desktop).lockScreen()
-		}})
 		if os.Getenv("FYNE_DESK_RUNNER") != "" {
 			items1 = append(items1, &widget.Button{Icon: theme.ViewRefreshIcon(), Importance: widget.LowImportance, OnTapped: func() {
 				os.Exit(5)