examples: add hyprctl example

examples/hyprctl/main.go

@@ -0,0 +1,86 @@
+// Limited reimplementation of hyprctl using hyprland-go to show an example
+// on how it can be used.
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/thiagokokada/hyprland-go"
+)
+
+// https://stackoverflow.com/a/28323276
+type arrayFlags []string
+
+func (i *arrayFlags) String() string {
+	return fmt.Sprintf("%v", *i)
+}
+
+func (i *arrayFlags) Set(v string) error {
+	*i = append(*i, v)
+	return nil
+}
+
+func must1[T any](v T, err error) T {
+	must(err)
+	return v
+}
+
+func must(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+func mustMarshalIndent(v any) []byte {
+	return must1(json.MarshalIndent(v, "", "   "))
+}
+
+func main() {
+	c := hyprland.MustClient()
+
+	dispatchFS := flag.NewFlagSet("dispatch", flag.ExitOnError)
+	var dispatch arrayFlags
+	dispatchFS.Var(&dispatch, "c", "Command to dispatch. Please quote commands with arguments (e.g.: 'exec kitty')")
+
+	setcursorFS := flag.NewFlagSet("setcursor", flag.ExitOnError)
+	theme := setcursorFS.String("theme", "Adwaita", "Cursor theme")
+	size := setcursorFS.Int("size", 32, "Cursor size")
+
+	flag.Parse()
+
+	if len(os.Args) < 2 {
+		fmt.Println("Expected subcommand.")
+		os.Exit(1)
+	}
+
+	switch os.Args[1] {
+	case "activewindow":
+		v := must1(c.ActiveWindow())
+		fmt.Printf("%s\n", mustMarshalIndent(v))
+	case "activeworkspace":
+		v := must1(c.ActiveWorkspace())
+		fmt.Printf("%s\n", mustMarshalIndent(v))
+	case "dispatch":
+		dispatchFS.Parse(os.Args[2:])
+		v := must1(c.Dispatch(dispatch...))
+		fmt.Printf("%s\n", v)
+	case "kill":
+		v := must1(c.Kill())
+		fmt.Printf("%s\n", v)
+	case "reload":
+		v := must1(c.Reload())
+		fmt.Printf("%s\n", v)
+	case "setcursor":
+		setcursorFS.Parse(os.Args[2:])
+		v := must1(c.SetCursor(*theme, *size))
+		fmt.Printf("%s\n", v)
+	case "version":
+		v := must1(c.Version())
+		fmt.Printf("%s\n", mustMarshalIndent(v))
+	default:
+		fmt.Printf("[ERROR] Unknown command: %s\n", os.Args[1])
+	}
+}

request_test.go

@@ -49,7 +49,6 @@ func setup() {
 	}
 }
 
-
 func teardown() {
 	if c != nil {
 		// Make sure that the Hyprland config is in a sane state