change logging level

Add -open and -close options

.github/FUNDING.yml

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

README.md

@@ -13,9 +13,9 @@ and for files in XDG user directories. The grid view may also be filtered by cat
 You may pin applications by right-clicking them. Pinned items will appear above the application grid. Right-click
 a pinned item to unpin it. The pinned items cache is shared with [nwg-menu](https://github.com/nwg-piotr/nwg-menu).
 
-Below the grid there is the power bar - a row of buttons to lock the screen, exit the compositor, reboot, suspend and power
-the machine off. For each button to appear, you need to provide a corresponding command. See "Command line arguments"
-below.
+Below the grid there is the **power bar** - a row of buttons to lock the screen, exit the compositor, reboot, suspend 
+and power the machine off. For each button to appear, you need to provide a corresponding command. See "Command line 
+arguments" below. If the power bar is present, pressing **Tab** will move focus to its first button.
 
 <img src="https://github.com/nwg-piotr/nwg-drawer/assets/20579136/8f4eacb4-5395-4350-889b-a9037aa34f08" width=640 alt="screenshot"><br>
 
@@ -27,7 +27,7 @@ To close the window w/o running a program, you may use the `Esc` key, or right-c
 
 ### Dependencies
 
-- go >=1.20 (just to build)
+- go
 - gtk3
 - gtk-layer-shell
 - xdg-utils
@@ -51,9 +51,11 @@ confirmed to work well with the program. Also see **Files** below.
 
 ```text
 $ nwg-drawer -h
-Usage of /tmp/go-build3511850078/b001/exe/nwg-drawer:
+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 /tmp/go-build3511850078/b001/exe/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
@@ -137,6 +141,15 @@ 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

@@ -1,10 +1,10 @@
 module github.com/nwg-piotr/nwg-drawer
 
-go 1.21
+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/sys v0.16.0 // indirect
+	golang.org/x/sync v0.7.0 // 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=
@@ -48,6 +54,10 @@ golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
 golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 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

@@ -21,17 +21,20 @@ import (
 	"github.com/gotk3/gotk3/gtk"
 )
 
-const version = "0.4.5"
+const version = "0.4.8"
 
 var (
 	appDirs          []string
 	configDirectory  string
+	dataDirectory    string
 	pinnedFile       string
 	pinned           []string
 	id2entry         map[string]desktopEntry
 	preferredApps    map[string]interface{}
 	exclusions       []string
 	hyprlandMonitors []monitor
+	beenScrolled     bool
+	firstPowerBtn    *gtk.Button
 )
 
 var categoryNames = [...]string{
@@ -152,6 +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")
@@ -198,8 +203,10 @@ 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
@@ -207,7 +214,7 @@ 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.
@@ -222,6 +229,23 @@ 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())
 			}
@@ -230,10 +254,10 @@ 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:
-	// 	1. kill the running non-residennt instance and exit;
+	// Otherwise, the command may behave in two ways:
+	// 	1. kill the running non-resident instance and exit;
 	// 	2. die if a resident instance found.
-	lockFilePath := path.Join(dataDir(), "nwg-drawer.lock")
+	lockFilePath := path.Join(dataHome(), "nwg-drawer.lock")
 	lockFile, err := singleinstance.CreateLockFile(lockFilePath)
 	if err != nil {
 		pid, err := readTextFile(lockFilePath)
@@ -243,8 +267,17 @@ func main() {
 				if *resident {
 					log.Warnf("Resident instance already running (PID %v)", i)
 				} else {
-					log.Infof("Showing resident instance (PID %v)", i)
-					err := syscall.Kill(i, syscall.SIGUSR1)
+					var err error
+					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
 					}
@@ -265,6 +298,7 @@ func main() {
 
 	// ENVIRONMENT
 	configDirectory = configDir()
+	dataDirectory = dataDir()
 
 	// Placing the drawer config files in the nwg-panel config directory was a mistake.
 	// Let's move them to their own location.
@@ -290,7 +324,7 @@ func main() {
 
 	// Copy default style sheet if not found
 	if !pathExists(filepath.Join(configDirectory, "drawer.css")) {
-		err := copyFile("/usr/share/nwg-drawer/drawer.css", filepath.Join(configDirectory, "drawer.css"))
+		err := copyFile(filepath.Join(dataDirectory, "drawer.css"), filepath.Join(configDirectory, "drawer.css"))
 		if err != nil {
 			log.Errorf("Failed copying 'drawer.css' file: %s", err)
 		}
@@ -459,6 +493,10 @@ func main() {
 				}
 			}
 			return true
+		} else if key.KeyVal() == gdk.KEY_Tab {
+			if firstPowerBtn != nil {
+				firstPowerBtn.ToWidget().GrabFocus()
+			}
 		}
 		return false
 	})
@@ -518,6 +556,18 @@ func main() {
 	resultWindow.SetEvents(int(gdk.ALL_EVENTS_MASK))
 	resultWindow.SetPolicy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 
+	// On touch screen we don't want the button-release-event to launch the app if the user just wanted to scroll the
+	// window. Let's forbid doing so if the content has been scrolled. We will reset the value on button-press-event.
+	// Resolves https://github.com/nwg-piotr/nwg-drawer/issues/110
+	vAdj := resultWindow.GetVAdjustment()
+	vAdj.Connect("value-changed", func() {
+		beenScrolled = true
+	})
+	hAdj := resultWindow.GetHAdjustment()
+	hAdj.Connect("value-changed", func() {
+		beenScrolled = true
+	})
+
 	resultWindow.Connect("button-release-event", func(_ *gtk.ScrolledWindow, event *gdk.Event) bool {
 		btnEvent := gdk.EventButtonNewFromEvent(event)
 		if btnEvent.Button() == 3 {
@@ -566,32 +616,41 @@ func main() {
 	}
 
 	// Power Button Bar
-	if *pbExit != "" || *pbLock != "" || *pbPoweroff != "" || *pbReboot != "" || *pbSleep != "" {
-		powerBarWrapper, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
-		outerVBox.PackStart(powerBarWrapper, false, false, 0)
-		powerButtonsWrapper, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
-		powerBarWrapper.PackStart(powerButtonsWrapper, true, false, 12)
+	if dataDirectory != "" {
+		if *pbExit != "" || *pbLock != "" || *pbPoweroff != "" || *pbReboot != "" || *pbSleep != "" {
+			powerBarWrapper, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
+			outerVBox.PackStart(powerBarWrapper, false, false, 0)
+			powerButtonsWrapper, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
+			powerBarWrapper.PackStart(powerButtonsWrapper, true, false, 12)
 
-		if *pbLock != "" {
-			btn := powerButton("/usr/share/nwg-drawer/img/lock.svg", *pbLock)
-			powerButtonsWrapper.PackStart(btn, true, false, 0)
-		}
-		if *pbExit != "" {
-			btn := powerButton("/usr/share/nwg-drawer/img/exit.svg", *pbExit)
-			powerButtonsWrapper.PackStart(btn, true, false, 0)
-		}
-		if *pbReboot != "" {
-			btn := powerButton("/usr/share/nwg-drawer/img/reboot.svg", *pbReboot)
-			powerButtonsWrapper.PackStart(btn, true, false, 0)
-		}
-		if *pbSleep != "" {
-			btn := powerButton("/usr/share/nwg-drawer/img/sleep.svg", *pbSleep)
-			powerButtonsWrapper.PackStart(btn, true, false, 0)
-		}
-		if *pbPoweroff != "" {
-			btn := powerButton("/usr/share/nwg-drawer/img/poweroff.svg", *pbPoweroff)
-			powerButtonsWrapper.PackStart(btn, true, false, 0)
+			if *pbPoweroff != "" {
+				btn := powerButton(filepath.Join(dataDirectory, "img/poweroff.svg"), *pbPoweroff)
+				powerButtonsWrapper.PackEnd(btn, true, false, 0)
+				firstPowerBtn = btn
+			}
+			if *pbSleep != "" {
+				btn := powerButton(filepath.Join(dataDirectory, "img/sleep.svg"), *pbSleep)
+				powerButtonsWrapper.PackEnd(btn, true, false, 0)
+				firstPowerBtn = btn
+			}
+			if *pbReboot != "" {
+				btn := powerButton(filepath.Join(dataDirectory, "img/reboot.svg"), *pbReboot)
+				powerButtonsWrapper.PackEnd(btn, true, false, 0)
+				firstPowerBtn = btn
+			}
+			if *pbExit != "" {
+				btn := powerButton(filepath.Join(dataDirectory, "img/exit.svg"), *pbExit)
+				powerButtonsWrapper.PackEnd(btn, true, false, 0)
+				firstPowerBtn = btn
+			}
+			if *pbLock != "" {
+				btn := powerButton(filepath.Join(dataDirectory, "img/lock.svg"), *pbLock)
+				powerButtonsWrapper.PackEnd(btn, true, false, 0)
+				firstPowerBtn = btn
+			}
 		}
+	} else {
+		log.Warn("Couldn't find data dir, power bar icons unavailable")
 	}
 
 	statusLineWrapper, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)

tools.go

@@ -173,7 +173,7 @@ func configHome() string {
 	return path.Join(os.Getenv("HOME"), ".config")
 }
 
-func dataDir() string {
+func dataHome() string {
 	var dir string
 	if xdgData := os.Getenv("XDG_DATA_HOME"); xdgData != "" {
 		dir = path.Join(xdgData, "nwg-drawer")
@@ -181,7 +181,7 @@ func dataDir() string {
 		dir = path.Join(home, ".local/share/nwg-drawer")
 	}
 
-	log.Infof("Data dir: %s", dir)
+	log.Debugf("Data home: %s", dir)
 	createDir(dir)
 
 	return dir
@@ -197,7 +197,7 @@ func createDir(dir string) {
 }
 
 func copyFile(src, dst string) error {
-	log.Infof("Copying file: %s", dst)
+	log.Infof("Copying: '%s' => '%s'", src, dst)
 
 	var err error
 	var srcfd *os.File
@@ -233,6 +233,22 @@ func copyFile(src, dst string) error {
 	return os.Chmod(dst, srcinfo.Mode())
 }
 
+func dataDir() string {
+	xdgDataDirs := os.Getenv("XDG_DATA_DIRS")
+	if xdgDataDirs == "" {
+		xdgDataDirs = "/usr/local/share/:/usr/share/"
+	}
+	for _, d := range strings.Split(xdgDataDirs, ":") {
+		p := filepath.Join(d, "nwg-drawer")
+		if pathExists(p) {
+			log.Infof("Data dir: %v", p)
+			return p
+		}
+	}
+	log.Warnf("Data dir not found")
+	return ""
+}
+
 func getAppDirs() []string {
 	var dirs []string
 
@@ -321,9 +337,10 @@ func listDesktopFiles() []string {
 func setUpCategories() {
 	var other category
 
+	dDir := dataDir()
 	for _, cName := range categoryNames {
 		fileName := fmt.Sprintf("%s.directory", cName)
-		fp := filepath.Join("/usr/share/nwg-drawer/desktop-directories", fileName)
+		fp := filepath.Join(dDir, "desktop-directories", fileName)
 		lines, err := loadTextFile(fp)
 		if err == nil {
 			var cat category

uicomponents.go

@@ -264,11 +264,19 @@ func flowBoxButton(entry desktopEntry) *gtk.Button {
 		r := substring(desc, 0, 117)
 		desc = fmt.Sprintf("%s…", string(r))
 	}
+
+	button.Connect("button-press-event", func() {
+		// if not scrolled from now on, we will allow launching apps on button-release-event
+		beenScrolled = false
+	})
+
 	button.Connect("button-release-event", func(btn *gtk.Button, e *gdk.Event) bool {
 		btnEvent := gdk.EventButtonNewFromEvent(e)
 		if btnEvent.Button() == 1 {
-			launch(exec, terminal)
-			return true
+			if !beenScrolled {
+				launch(exec, terminal)
+				return true
+			}
 		} else if btnEvent.Button() == 3 {
 			pinItem(ID)
 			return true