diff --git a/internal/desktop/filechooser.go b/internal/desktop/filechooser.go
index 346673d6..c37c9b27 100644
--- a/internal/desktop/filechooser.go
+++ b/internal/desktop/filechooser.go
@@ -1,9 +1,52 @@
 package desktop
 
 import (
+	"time"
 	"os/exec"
 )
 
+var (
+	file_chooser_dialog_open = false
+)
+
+func (manager *DesktopManagerCtx) fileChooserDialogStart() {
+	if manager.IsFileChooserDialogOpen() {
+		manager.CloseFileChooserDialog()
+	}
+
+	manager.OnWindowCreated(func(window uint32, name string, role string) {
+		if role != "GtkFileChooserDialog" {
+			return
+		}
+
+		// TODO: Implement, call event.
+		file_chooser_dialog_open = true
+	
+		manager.logger.Debug().
+			Uint32("window", window).
+			Msg("GtkFileChooserDialog has been opened")
+	})
+
+	manager.OnWindowConfigured(func(window uint32, name string, role string) {
+		if role != "GtkFileChooserDialog" {
+			return
+		}
+
+		go func(){
+			// TOOD: Refactor. 
+			manager.PutWindowBelow(window)
+
+			// Because first dialog is not put properly to background
+			time.Sleep(500 * time.Millisecond)
+			manager.PutWindowBelow(window)
+		}()
+	
+		manager.logger.Debug().
+			Uint32("window", window).
+			Msg("GtkFileChooserDialog has been put below main window")
+	})
+}
+
 func (manager *DesktopManagerCtx) HandleFileChooserDialog(uri string) error {
 	mu.Lock()
 	defer mu.Unlock()
@@ -23,6 +66,9 @@ func (manager *DesktopManagerCtx) HandleFileChooserDialog(uri string) error {
 			"sleep", "0.3",
 	)
 
+	// TODO: Implement, call event.
+	file_chooser_dialog_open = false
+
 	_, err := cmd.Output()
 	return err
 }
@@ -40,6 +86,8 @@ func (manager *DesktopManagerCtx) CloseFileChooserDialog() bool {
 		mu.Unlock()
 
 		if !manager.IsFileChooserDialogOpen() {
+			// TODO: Implement, call event.
+			file_chooser_dialog_open = false
 			return true
 		}
 	}
diff --git a/internal/desktop/manager.go b/internal/desktop/manager.go
index 96ddac60..21264741 100644
--- a/internal/desktop/manager.go
+++ b/internal/desktop/manager.go
@@ -53,6 +53,17 @@ func (manager *DesktopManagerCtx) Start() {
 
 	go xevent.EventLoop(manager.display)
 
+	go manager.fileChooserDialogStart()
+
+	manager.OnEventError(func(error_code uint8, message string, request_code uint8, minor_code uint8) {
+		manager.logger.Warn().
+			Uint8("error_code", error_code).
+			Str("message", message).
+			Uint8("request_code", request_code).
+			Uint8("minor_code", minor_code).
+			Msg("X event error occured")
+	})
+
 	go func() {
 		defer func() {
 			xorg.DisplayClose()