Implement back button logic.

1 files changed, 17 insertions, 0 deletions

diff --git a/main.gd b/main.gd
index 5612e01..ec449df 100644
--- a/main.gd
+++ b/main.gd
@@ -2,7 +2,10 @@ extends Control
 
 var power_throttle_timeout: float
 
+onready var popup			:= get_node("/root/main/popup") as ModalPopup
 onready var file_picker		:= get_node("/root/main/file_picker") as FileDialog
+onready var stage			:= get_node("/root/main/stage") as Stage
+onready var database		:= get_node("/root/main/database") as Database
 onready var controls_sensible_to_keyboard := [
 	self,
 	file_picker,
@@ -46,3 +49,17 @@ func _unhandled_input(event: InputEvent):
 	power_throttle_timeout = 3.5
 
 
+func _notification(what: int):
+	if what == MainLoop.NOTIFICATION_WM_GO_BACK_REQUEST:
+		if popup.visible:
+			popup.call_deferred("dismiss")
+		elif file_picker.visible:
+			file_picker.hide()
+		elif stage.visible:
+			stage.discard_action()
+		elif database.selected_idx != -1:
+			database.clear_selection()
+		else:
+			get_tree().quit()
+
+