add optional autosave to file content

ServerUI.gd

@@ -7,6 +7,9 @@ const SERVER_STATUS_TEXT: Dictionary = {
 
 const ACCEPTED_FILE_FORMATS := ["md"] # server should ignore these file types when adding endpoints
 
+export(bool) var enable_file_autosave := true # if true, will save the active file's contents every save_file_timeout seconds.
+export(float) var save_file_timeout := 4.0 # the time to save document content after the edited signal of TextEdit
+
 enum ContextMenuOptions {
 	MOVE_UP,
 	MOVE_DOWN,
@@ -24,7 +27,6 @@ onready var file_tree_context_menu := $"%FileTreeContextMenu"
 
 onready var document_input_textedit := $"%DocInputTextEdit"
 onready var content_preview_richtextlabel := $"%ContentPreviewRichTextLabel"
-onready var document_input_timer := $"%EditedTimeout"
 
 onready var server_folder_dialog := $"%ServerFolderDialog"
 
@@ -157,7 +159,6 @@ func _generate_filestxt():
 			files += "%s %s %s\n" % [file.file_path, file.date, file.title]
 
 	var f := File.new()
-
 	if f.open(server_dir.plus_file("files.txt"), File.WRITE) == OK:
 		f.store_string(files)
 		f.close()
@@ -236,6 +237,26 @@ func _on_DocInputTextEdit_text_changed() -> void:
 		current_file.content = new_text
 		current_file.dirty = true
 
+		if !current_file.timer:
+			var t := Timer.new()
+			t.wait_time = save_file_timeout
+			t.one_shot = true
+			current_file.timer = t
+			add_child(t)
+			t.connect("timeout", self, "_on_EditedTimeout_timeout", [t, current_file])
+		else:
+			current_file.timer.stop()
+			current_file.timer.start()
+
+
+func _on_EditedTimeout_timeout(timer: Timer, file: FileDef) -> void:
+	file.timer = null
+	timer.queue_free()
+
+	var f := File.new()
+	if f.open(server_dir.plus_file(file.file_path), File.WRITE) == OK:
+		f.store_string(file.content)
+
 
 func FileDef(
 	file_path: String,
@@ -259,3 +280,5 @@ class FileDef:
 	var dirty: bool = false
 
 	var content: String
+
+	var timer: Timer

ServerUI.tscn

@@ -206,11 +206,6 @@ size_flags_vertical = 3
 show_line_numbers = true
 wrap_enabled = true
 
-[node name="EditedTimeout" type="Timer" parent="VBoxContainer/HSplitContainer/VBoxContainer/HBoxContainer/VBoxContainer/HSplitContainer/ContentEditContainer/DocInputTextEdit"]
-unique_name_in_owner = true
-wait_time = 3.0
-one_shot = true
-
 [node name="ContentPreviewContainer" type="VBoxContainer" parent="VBoxContainer/HSplitContainer/VBoxContainer/HBoxContainer/VBoxContainer/HSplitContainer"]
 margin_left = 390.0
 margin_right = 848.0