Merge pull request #125 from nwg-piotr/icon-theme

update README.md

.github/FUNDING.yml

@@ -1 +1,2 @@
 github: nwg-piotr
+liberapay: nwg

README.md

@@ -54,6 +54,8 @@ $ nwg-drawer -h
 Usage of nwg-drawer:
   -c uint
     	number of Columns (default 6)
+  -close
+    	close drawer of existing instance
   -d	Turn on Debug messages
   -fm string
     	File Manager (default "thunar")
@@ -86,6 +88,8 @@ Usage of nwg-drawer:
     	Disable file search
   -o string
     	name of the Output to display the drawer on (sway & Hyprland only)
+  -open
+    	open drawer of existing instance
   -ovl
     	use OVerLay layer
   -pbexit string
@@ -97,9 +101,11 @@ Usage of nwg-drawer:
   -pbreboot string
     	command for the Reboot power bar icon
   -pbsize int
-    	power bar icon size (default 64)
+    	power bar icon size (only works w/ built-in icons) (default 64)
   -pbsleep string
     	command for the sleep power bar icon
+  -pbuseicontheme
+    	use icon theme instead of built-in icons in power bar
   -r	Leave the program resident in memory
   -s string
     	Styling: css file name (default "drawer.css")
@@ -137,6 +143,15 @@ this should be a little bit faster.
 Running a resident instance should speed up use of the drawer significantly. Pay attention to the fact, that you
 need to `pkill -f nwg-drawer` and reload the compositor to apply any new arguments!
 
+If you want to explicitly specify commands to open and close the resident instance, which can be helpful for touchpad gestures, please use the `-open` and `-close` parameters. Similarly, some signals can also be use: pkill -USR2 nwg-drawer to open and pkill -SIGRTMIN+3 nwg-drawer to close.
+
+For a MacOS-style three-finger pinch:
+
+```text
+bindgesture pinch:4:inward exec pkill -SIGUSR2 nwg-drawer
+bindgesture pinch:4:outward exec pkill -SIGRTMIN+3 nwg-drawer
+```
+
 ## Logging
 
 In case you encounter an issue, you may need debug messages. If you use the resident instance, you'll see nothing

go.mod

@@ -4,7 +4,7 @@ go 1.22
 
 require (
 	github.com/allan-simon/go-singleinstance v0.0.0-20210120080615-d0997106ab37
-	github.com/dlasky/gotk3-layershell v0.0.0-20230802002603-b0c42cd8474f
+	github.com/dlasky/gotk3-layershell v0.0.0-20240515133811-5c5115f0d774
 	github.com/fsnotify/fsnotify v1.7.0
 	github.com/gotk3/gotk3 v0.6.3
 	github.com/joshuarubin/go-sway v1.2.0
@@ -14,6 +14,6 @@ require (
 require (
 	github.com/joshuarubin/lifecycle v1.1.4 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.17.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
 )

go.sum

@@ -7,6 +7,8 @@ github.com/dlasky/gotk3-layershell v0.0.0-20221218201547-1f6674a3f872 h1:16qcNl+
 github.com/dlasky/gotk3-layershell v0.0.0-20221218201547-1f6674a3f872/go.mod h1:JHLx2Wz4mAPVwn4PFhC69ydwyHP4A3wQvlg7HKVVc1U=
 github.com/dlasky/gotk3-layershell v0.0.0-20230802002603-b0c42cd8474f h1:qDnUQAD7tVX/gnL6uSgouzfGNA4xXH+B/fd6Ko19GgM=
 github.com/dlasky/gotk3-layershell v0.0.0-20230802002603-b0c42cd8474f/go.mod h1:JHLx2Wz4mAPVwn4PFhC69ydwyHP4A3wQvlg7HKVVc1U=
+github.com/dlasky/gotk3-layershell v0.0.0-20240515133811-5c5115f0d774 h1:o87OVL4olQBlVwN3+NSVQpS6gj9FWUYtxOfHXWZigUE=
+github.com/dlasky/gotk3-layershell v0.0.0-20240515133811-5c5115f0d774/go.mod h1:JHLx2Wz4mAPVwn4PFhC69ydwyHP4A3wQvlg7HKVVc1U=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
@@ -16,6 +18,8 @@ github.com/gotk3/gotk3 v0.6.2 h1:sx/PjaKfKULJPTPq8p2kn2ZbcNFxpOJqi4VLzMbEOO8=
 github.com/gotk3/gotk3 v0.6.2/go.mod h1:/hqFpkNa9T3JgNAE2fLvCdov7c5bw//FHNZrZ3Uv9/Q=
 github.com/gotk3/gotk3 v0.6.3 h1:+Ke4WkM1TQUNOlM2TZH6szqknqo+zNbX3BZWVXjSHYw=
 github.com/gotk3/gotk3 v0.6.3/go.mod h1:/hqFpkNa9T3JgNAE2fLvCdov7c5bw//FHNZrZ3Uv9/Q=
+github.com/gotk3/gotk3 v0.6.4 h1:5ur/PRr86PwCG8eSj98D1eXvhrNNK6GILS2zq779dCg=
+github.com/gotk3/gotk3 v0.6.4/go.mod h1:/hqFpkNa9T3JgNAE2fLvCdov7c5bw//FHNZrZ3Uv9/Q=
 github.com/joshuarubin/go-sway v1.2.0 h1:t3eqW504//uj9PDwFf0+IVfkD+WoOGaDX5gYIe0BHyM=
 github.com/joshuarubin/go-sway v1.2.0/go.mod h1:qcDd6f25vJ0++wICwA1BainIcRC67p2Mb4lsrZ0k3/k=
 github.com/joshuarubin/lifecycle v1.0.0/go.mod h1:sRy++ATvR9Ee21tkRdFkQeywAWvDsue66V70K0Dnl54=
@@ -40,6 +44,8 @@ golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
 golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
 golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
@@ -50,6 +56,8 @@ golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
 golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
+golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

main.go

@@ -21,7 +21,7 @@ import (
 	"github.com/gotk3/gotk3/gtk"
 )
 
-const version = "0.4.7"
+const version = "0.4.9"
 
 var (
 	appDirs          []string
@@ -155,6 +155,8 @@ var targetOutput = flag.String("o", "", "name of the Output to display the drawe
 var displayVersion = flag.Bool("v", false, "display Version information")
 var keyboard = flag.Bool("k", false, "set GTK layer shell Keyboard interactivity to 'on-demand' mode")
 var overlay = flag.Bool("ovl", false, "use OVerLay layer")
+var flagDrawerOpen = flag.Bool("open", false, "open drawer of existing instance")
+var flagDrawerClose = flag.Bool("close", false, "close drawer of existing instance")
 var gtkTheme = flag.String("g", "", "GTK theme name")
 var gtkIconTheme = flag.String("i", "", "GTK icon theme name")
 var iconSize = flag.Int("is", 64, "Icon Size")
@@ -179,7 +181,8 @@ var pbLock = flag.String("pblock", "", "command for the Lock power bar icon")
 var pbPoweroff = flag.String("pbpoweroff", "", "command for the Poweroff power bar icon")
 var pbReboot = flag.String("pbreboot", "", "command for the Reboot power bar icon")
 var pbSleep = flag.String("pbsleep", "", "command for the sleep power bar icon")
-var pbSize = flag.Int("pbsize", 64, "power bar icon size")
+var pbSize = flag.Int("pbsize", 64, "power bar icon size (only works w/ built-in icons)")
+var pbUseIconTheme = flag.Bool("pbuseicontheme", false, "use icon theme instead of built-in icons in power bar")
 var debug = flag.Bool("d", false, "Turn on Debug messages")
 
 func main() {
@@ -201,8 +204,10 @@ func main() {
 	// v0.2: we also need to support SIGUSR from now on
 	showWindowChannel := make(chan interface{}, 1)
 	signalChan := make(chan os.Signal, 1)
-	signal.Notify(signalChan, syscall.SIGTERM, syscall.SIGUSR1)
+	const (
-
+		SIG25 = syscall.Signal(0x25) // Which is SIGRTMIN+3 on Linux, it's not used by the system
+	)
+	signal.Notify(signalChan, syscall.SIGTERM, syscall.SIGUSR1, syscall.SIGUSR2, SIG25)
 	go func() {
 		for {
 			s := <-signalChan
@@ -210,7 +215,7 @@ func main() {
 			case syscall.SIGTERM:
 				log.Info("SIGTERM received, bye bye")
 				gtk.MainQuit()
-			case syscall.SIGUSR1:
+			case syscall.SIGUSR1: // toggle drawer
 				if *resident {
 					// As win.Show() called from inside a goroutine randomly crashes GTK,
 					// let's just set e helper variable here. We'll be checking it with glib.TimeoutAdd.
@@ -225,6 +230,23 @@ func main() {
 					log.Info("SIGUSR1 received, and I'm not resident, bye bye")
 					gtk.MainQuit()
 				}
+			case syscall.SIGUSR2: // open drawer
+				if *resident {
+					log.Debug("SIGUSR2 received, showing the window")
+					showWindowChannel <- struct{}{}
+				} else {
+					log.Info("SIGUSR2 received, and I'm not resident but I'm still here, doing nothing")
+				}
+			case SIG25: // close drawer
+				if *resident {
+					log.Debug("SIG25 received, hiding the window")
+					if win.IsVisible() {
+						restoreStateAndHide()
+					}
+				} else {
+					log.Info("A signal received, and I'm not resident, bye bye")
+					gtk.MainQuit()
+				}
 			default:
 				log.Infof("Unknown signal: %s", s.String())
 			}
@@ -233,8 +255,8 @@ func main() {
 
 	// If running instance found, we want it to show the window. The new instance will send SIGUSR1 and die
 	// (equivalent of `pkill -USR1 nwg-drawer`).
-	// Otherwise the command may behave in two ways:
+	// Otherwise, the command may behave in two ways:
-	// 	1. kill the running non-residennt instance and exit;
+	// 	1. kill the running non-resident instance and exit;
 	// 	2. die if a resident instance found.
 	lockFilePath := path.Join(dataHome(), "nwg-drawer.lock")
 	lockFile, err := singleinstance.CreateLockFile(lockFilePath)
@@ -246,8 +268,17 @@ func main() {
 				if *resident {
 					log.Warnf("Resident instance already running (PID %v)", i)
 				} else {
-					log.Infof("Showing resident instance (PID %v)", i)
+					var err error
-					err := syscall.Kill(i, syscall.SIGUSR1)
+					if *flagDrawerClose {
+						log.Infof("Closing resident instance (PID %v)", i)
+						err = syscall.Kill(i, SIG25)
+					} else if *flagDrawerOpen {
+						log.Infof("Showing resident instance (PID %v)", i)
+						err = syscall.Kill(i, syscall.SIGUSR2)
+					} else {
+						log.Infof("Toggling resident instance (PID %v)", i)
+						err = syscall.Kill(i, syscall.SIGUSR1)
+					}
 					if err != nil {
 						return
 					}
@@ -594,27 +625,52 @@ func main() {
 			powerBarWrapper.PackStart(powerButtonsWrapper, true, false, 12)
 
 			if *pbPoweroff != "" {
-				btn := powerButton(filepath.Join(dataDirectory, "img/poweroff.svg"), *pbPoweroff)
+				btn, _ := gtk.ButtonNew()
+				if !*pbUseIconTheme {
+					btn = powerButton(filepath.Join(dataDirectory, "img/poweroff.svg"), *pbPoweroff)
+				} else {
+					btn = powerButton("system-shutdown-symbolic", *pbPoweroff)
+				}
 				powerButtonsWrapper.PackEnd(btn, true, false, 0)
 				firstPowerBtn = btn
 			}
 			if *pbSleep != "" {
-				btn := powerButton(filepath.Join(dataDirectory, "img/sleep.svg"), *pbSleep)
+				btn, _ := gtk.ButtonNew()
+				if !*pbUseIconTheme {
+					btn = powerButton(filepath.Join(dataDirectory, "img/sleep.svg"), *pbSleep)
+				} else {
+					btn = powerButton("face-yawn-symbolic", *pbSleep)
+				}
 				powerButtonsWrapper.PackEnd(btn, true, false, 0)
 				firstPowerBtn = btn
 			}
 			if *pbReboot != "" {
-				btn := powerButton(filepath.Join(dataDirectory, "img/reboot.svg"), *pbReboot)
+				btn, _ := gtk.ButtonNew()
+				if !*pbUseIconTheme {
+					btn = powerButton(filepath.Join(dataDirectory, "img/reboot.svg"), *pbReboot)
+				} else {
+					btn = powerButton("system-reboot-symbolic", *pbReboot)
+				}
 				powerButtonsWrapper.PackEnd(btn, true, false, 0)
 				firstPowerBtn = btn
 			}
 			if *pbExit != "" {
-				btn := powerButton(filepath.Join(dataDirectory, "img/exit.svg"), *pbExit)
+				btn, _ := gtk.ButtonNew()
+				if !*pbUseIconTheme {
+					btn = powerButton(filepath.Join(dataDirectory, "img/exit.svg"), *pbExit)
+				} else {
+					btn = powerButton("system-log-out-symbolic", *pbExit)
+				}
 				powerButtonsWrapper.PackEnd(btn, true, false, 0)
 				firstPowerBtn = btn
 			}
 			if *pbLock != "" {
-				btn := powerButton(filepath.Join(dataDirectory, "img/lock.svg"), *pbLock)
+				btn, _ := gtk.ButtonNew()
+				if !*pbUseIconTheme {
+					btn = powerButton(filepath.Join(dataDirectory, "img/lock.svg"), *pbLock)
+				} else {
+					btn = powerButton("system-lock-screen-symbolic", *pbLock)
+				}
 				powerButtonsWrapper.PackEnd(btn, true, false, 0)
 				firstPowerBtn = btn
 			}

tools.go

@@ -181,7 +181,7 @@ func dataHome() string {
 		dir = path.Join(home, ".local/share/nwg-drawer")
 	}
 
-	log.Infof("Data home: %s", dir)
+	log.Debugf("Data home: %s", dir)
 	createDir(dir)
 
 	return dir

uicomponents.go

@@ -298,19 +298,24 @@ func flowBoxButton(entry desktopEntry) *gtk.Button {
 	return button
 }
 
-func powerButton(iconPath, command string) *gtk.Button {
+func powerButton(iconPathOrName, command string) *gtk.Button {
 	button, _ := gtk.ButtonNew()
 	button.SetAlwaysShowImage(true)
 
 	var pixbuf *gdk.Pixbuf
 	var img *gtk.Image
 	var err error
-	pixbuf, err = gdk.PixbufNewFromFileAtSize(iconPath, *pbSize, *pbSize)
+	if !*pbUseIconTheme {
-	if err != nil {
+		pixbuf, err = gdk.PixbufNewFromFileAtSize(iconPathOrName, *pbSize, *pbSize)
-		pixbuf, _ = createPixbuf("unknown", *pbSize)
+		if err != nil {
-		log.Warnf("Couldn't find icon %s", iconPath)
+			pixbuf, _ = createPixbuf("unknown", *pbSize)
+			log.Warnf("Couldn't find icon %s", iconPathOrName)
+		}
+		img, _ = gtk.ImageNewFromPixbuf(pixbuf)
+	} else {
+		img, _ = gtk.ImageNewFromIconName(iconPathOrName, gtk.ICON_SIZE_DIALOG)
 	}
-	img, _ = gtk.ImageNewFromPixbuf(pixbuf)
+
 	button.SetImage(img)
 	button.SetImagePosition(gtk.POS_TOP)