prompt to save dirty deck when closing it

graph_node_renderer/deck_holder_renderer.gd

@@ -12,7 +12,7 @@ const DEBUG_DECKS_LIST := preload("res://graph_node_renderer/debug_decks_list.ts
 const PERSISTENCE_NAMESPACE := "default"
 
 ## Reference to the main windows [TabContainerCustom]
-@onready var tab_container: TabContainerCustom = %TabContainerCustom as TabContainerCustom
+@onready var tab_container := %TabContainerCustom as TabContainerCustom
 ## Reference to the [FileDialog] used for File operations through the program.
 @onready var file_dialog: FileDialog = $FileDialog
 
@@ -34,6 +34,7 @@ enum FileMenuId {
 @onready var file_popup_menu: PopupMenu = %File as PopupMenu
 var max_recents := 4
 var recent_files := []
+@onready var unsaved_changes_dialog_single_deck := $UnsavedChangesDialogSingleDeck as UnsavedChangesDialogSingleDeck
 
 enum ConnectionsMenuId {
 	OBS,
@@ -43,10 +44,10 @@ enum ConnectionsMenuId {
 ## Weak Reference to the Deck that is currently going to be saved.
 var _deck_to_save: WeakRef
 
-@onready var no_obsws: NoOBSWS = %NoOBSWS as NoOBSWS
+@onready var no_obsws := %NoOBSWS as NoOBSWS
 
-@onready var obs_setup_dialog: OBSWebsocketSetupDialog = $OBSWebsocketSetupDialog as OBSWebsocketSetupDialog
-@onready var twitch_setup_dialog : TwitchSetupDialog = $Twitch_Setup_Dialog as TwitchSetupDialog
+@onready var obs_setup_dialog := $OBSWebsocketSetupDialog as OBSWebsocketSetupDialog
+@onready var twitch_setup_dialog := $Twitch_Setup_Dialog as TwitchSetupDialog
 
 
 func _ready() -> void:
@@ -62,14 +63,11 @@ func _ready() -> void:
 
 	tab_container.tab_close_requested.connect(
 		func(tab: int):
-			var groups := DeckHolder.close_deck(tab_container.get_tab_metadata(tab, "id"))
-			# close tabs associated with this deck's groups
-			for group in groups:
-				for c_tab in tab_container.get_tab_count():
-					if tab_container.get_tab_metadata(c_tab, "id") == group:
-						tab_container.close_tab(tab)
-						await get_tree().process_frame
-			tab_container.close_tab(tab)
+			if tab_container.get_tab_metadata(tab, "dirty"):
+				unsaved_changes_dialog_single_deck.set_meta("tab", tab)
+				unsaved_changes_dialog_single_deck.show()
+				return
+			close_tab(tab)
 	)
 
 	file_dialog.canceled.connect(disconnect_file_dialog_signals)
@@ -116,6 +114,17 @@ func add_empty_deck() -> void:
 func close_current_tab() -> void:
 	tab_container.close_tab(tab_container.get_current_tab())
 
+
+func close_tab(tab: int) -> void:
+	var groups := DeckHolder.close_deck(tab_container.get_tab_metadata(tab, "id"))
+	# close tabs associated with this deck's groups
+	for group in groups:
+		for c_tab in tab_container.get_tab_count():
+			if tab_container.get_tab_metadata(c_tab, "id") == group:
+				tab_container.close_tab(tab)
+				await get_tree().process_frame
+	tab_container.close_tab(tab)
+
 ## Opens [member file_dialog] with the mode [member FileDialog.FILE_MODE_SAVE_FILE]
 ## as well as getting a weakref to the active [Deck]
 func open_save_dialog(path: String) -> void:
@@ -185,14 +194,21 @@ func get_active_deck() -> Deck:
 
 ## Saves the active [Deck] in [member tab_container]
 func save_active_deck() -> void:
-	if get_active_deck().save_path.is_empty():
+	save_tab(tab_container.get_current_tab())
+
+
+func save_tab(tab: int) -> void:
+	var renderer := tab_container.get_content(tab) as DeckRendererGraphEdit
+	var deck := renderer.deck
+	if deck.save_path.is_empty():
 		open_save_dialog("res://")
 	else:
-		var json := JSON.stringify(get_active_deck().to_dict(), "\t")
-		var f := FileAccess.open(get_active_deck().save_path, FileAccess.WRITE)
+		var json := JSON.stringify(deck.to_dict(), "\t")
+		var f := FileAccess.open(deck.save_path, FileAccess.WRITE)
 		f.store_string(json)
-		add_recent_file(get_active_deck().save_path)
-		(tab_container.get_content(tab_container.get_current_tab()) as DeckRendererGraphEdit).dirty = false
+		add_recent_file(deck.save_path)
+		renderer.dirty = false
+
 
 ## Disconnects the [FileDialog] signals if they are already connected.
 func disconnect_file_dialog_signals() -> void:
@@ -281,6 +297,7 @@ func _on_deck_renderer_dirty_state_changed(renderer: DeckRendererGraphEdit) -> v
 		tab_container.set_tab_title(idx, "%s(*)" % title)
 	else:
 		tab_container.set_tab_title(idx, title.trim_suffix("(*)"))
+	tab_container.set_tab_metadata(idx, "dirty", renderer.dirty)
 
 
 func add_recent_file(path: String) -> void:
@@ -328,3 +345,13 @@ func add_recents_to_menu() -> void:
 		
 	RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "recent_files", recent_files)
 	RendererPersistence.commit(PERSISTENCE_NAMESPACE)
+
+
+func _on_unsaved_changes_dialog_single_deck_confirmed() -> void:
+	save_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))
+	close_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))
+
+
+func _on_unsaved_changes_dialog_single_deck_custom_action(action: StringName) -> void:
+	if action == &"force_close":
+		close_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))

graph_node_renderer/deck_holder_renderer.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=18 format=3 uid="uid://duaah5x0jhkn6"]
+[gd_scene load_steps=19 format=3 uid="uid://duaah5x0jhkn6"]
 
 [ext_resource type="Script" path="res://graph_node_renderer/deck_holder_renderer.gd" id="1_67g2g"]
 [ext_resource type="PackedScene" uid="uid://b84f2ngtcm5b8" path="res://graph_node_renderer/tab_container_custom.tscn" id="1_s3ug2"]
@@ -7,6 +7,7 @@
 [ext_resource type="Script" path="res://addons/no_twitch/twitch_connection.gd" id="5_3n36q"]
 [ext_resource type="PackedScene" uid="uid://eioso6jb42jy" path="res://graph_node_renderer/obs_websocket_setup_dialog.tscn" id="5_uo2gj"]
 [ext_resource type="PackedScene" uid="uid://bq2lxmbnic4lc" path="res://graph_node_renderer/twitch_setup_dialog.tscn" id="7_7rhap"]
+[ext_resource type="PackedScene" uid="uid://cuwou2aa7qfc2" path="res://graph_node_renderer/unsaved_changes_dialog_single_deck.tscn" id="8_qf6ve"]
 
 [sub_resource type="InputEventKey" id="InputEventKey_giamc"]
 device = -1
@@ -158,7 +159,11 @@ script = ExtResource("5_3n36q")
 [node name="Twitch_Setup_Dialog" parent="." instance=ExtResource("7_7rhap")]
 visible = false
 
+[node name="UnsavedChangesDialogSingleDeck" parent="." instance=ExtResource("8_qf6ve")]
+
 [connection signal="id_pressed" from="MarginContainer/VSplitContainer/VBoxContainer/MenuBar/File" to="." method="_on_file_id_pressed"]
 [connection signal="id_pressed" from="MarginContainer/VSplitContainer/VBoxContainer/MenuBar/Connections" to="." method="_on_connections_id_pressed"]
 [connection signal="id_pressed" from="MarginContainer/VSplitContainer/VBoxContainer/MenuBar/Debug" to="." method="_on_debug_id_pressed"]
 [connection signal="connect_button_pressed" from="OBSWebsocketSetupDialog" to="." method="_on_obs_websocket_setup_dialog_connect_button_pressed"]
+[connection signal="confirmed" from="UnsavedChangesDialogSingleDeck" to="." method="_on_unsaved_changes_dialog_single_deck_confirmed"]
+[connection signal="custom_action" from="UnsavedChangesDialogSingleDeck" to="." method="_on_unsaved_changes_dialog_single_deck_custom_action"]

graph_node_renderer/unsaved_changes_dialog_single_deck.gd

@@ -0,0 +1,6 @@
+extends ConfirmationDialog
+class_name UnsavedChangesDialogSingleDeck
+
+
+func _init() -> void:
+	add_button("Don't Save", true, "force_close")

graph_node_renderer/unsaved_changes_dialog_single_deck.tscn

@@ -0,0 +1,20 @@
+[gd_scene load_steps=2 format=3 uid="uid://cuwou2aa7qfc2"]
+
+[ext_resource type="Script" path="res://graph_node_renderer/unsaved_changes_dialog_single_deck.gd" id="1_qpf7a"]
+
+[node name="UnsavedChangesDialogSingleDeck" type="ConfirmationDialog"]
+initial_position = 2
+size = Vector2i(356, 206)
+ok_button_text = "Save"
+script = ExtResource("1_qpf7a")
+
+[node name="Label" type="Label" parent="."]
+offset_left = 8.0
+offset_top = 8.0
+offset_right = 348.0
+offset_bottom = 157.0
+text = "This deck has unsaved changes. Closing it will discard any changes.
+Save now?"
+horizontal_alignment = 1
+vertical_alignment = 1
+autowrap_mode = 3