implemented more stuff along with samples

_examples/find_focused_window/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/tlinden/i3ipc"
+)
+
+func main() {
+	ipc := i3ipc.NewI3ipc("SWAYSOCK")
+
+	err := ipc.Connect()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	tree, err := ipc.GetTree()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	focused := tree.FindFocused()
+
+	if focused != nil {
+		fmt.Printf("focused node: %s\n  id: %d\n  Geometry: %dx%d\n",
+			focused.Name, focused.Id, focused.Geometry.Width, focused.Geometry.Height)
+	}
+}