From 974c40fcb4b75a2290cdac0f95a905621eaf5a1a Mon Sep 17 00:00:00 2001
From: ChaoticByte <contact@chaoticbyte.net>
Date: Tue, 7 Jan 2025 22:46:13 +0100
Subject: [PATCH] Remember last opened file and open it on start, implements
 #33

---
 src/Filesystem.gd | 14 ++++++++++++++
 src/Main.gd       |  5 +++++
 2 files changed, 19 insertions(+)

diff --git a/src/Filesystem.gd b/src/Filesystem.gd
index 2ead478..760bc07 100644
--- a/src/Filesystem.gd
+++ b/src/Filesystem.gd
@@ -65,11 +65,25 @@ func load_shader(path: String):
 	if "/" in path: # update current working directory
 		self.cwd = path.substr(0, path.rfind("/"))
 	self.last_shader_savepath = path
+	store_last_opened_file()
 
 func save_shader(path: String):
 	print("Save ", path)
 	var file = FileAccess.open(path, FileAccess.WRITE)
 	file.store_string(self.shader_code)
+	file.flush()
 	if "/" in path: # update current working directory
 		self.cwd = path.substr(0, path.rfind("/"))
 	self.last_shader_savepath = path
+	store_last_opened_file()
+
+func store_last_opened_file():
+	var f = FileAccess.open("user://last_opened", FileAccess.WRITE)
+	if f != null:
+		f.store_pascal_string(last_shader_savepath)
+		f.flush()
+
+func remember_last_opened_file():
+	var f = FileAccess.open("user://last_opened", FileAccess.READ)
+	if f != null:
+		last_shader_savepath = f.get_pascal_string()
diff --git a/src/Main.gd b/src/Main.gd
index 6c59d07..2acdbf4 100644
--- a/src/Main.gd
+++ b/src/Main.gd
@@ -1,6 +1,7 @@
 extends Node
 
 @onready var editor_window = %EditorWindow
+@onready var ui_container = %UserInterfaceContainer
 @onready var app_name = ProjectSettings.get_setting("application/config/name")
 
 func _ready():
@@ -11,6 +12,10 @@ func _ready():
 		editor_window.position.y)
 	get_window().min_size = Vector2i(400, 400)
 	editor_window.min_size = Vector2i(560, 400)
+	# Load last opened file
+	Filesystem.remember_last_opened_file()
+	if Filesystem.last_shader_savepath != "":
+		ui_container.get_node("Editor")._on_open_shader_dialog_file_selected(Filesystem.last_shader_savepath)
 
 func update_title(current_file: String = ""):
 	if current_file == "":