Adding inspector plugin to handle timeline selection from the dialog node :)

Author: coppolaemilio

addons/dialogic/Editor/Pieces/ChangeTimeline.tscn

@@ -90,5 +90,4 @@ size_flags_horizontal = 3
 items = [ "Move Up", null, 0, false, false, 0, 0, null, "", false, "Move Down", null, 0, false, false, 1, 0, null, "", false, "", null, 0, false, false, 2, 0, null, "", true, "Remove", null, 0, false, false, 3, 0, null, "", false ]
 
 [node name="DragController" parent="." instance=ExtResource( 5 )]
-
 [connection signal="about_to_show" from="PanelContainer/VBoxContainer/Header/MenuButton" to="." method="_on_MenuButton_about_to_show"]

addons/dialogic/Nodes/dialog_node.gd

@@ -9,8 +9,9 @@ var waiting_for_answer: bool = false
 var waiting_for_input: bool = false
 var settings
 
-export(String) var timeline_id: String # Timeline-var-replace
+#export(String) var timeline: String # Timeline-var-replace
 
+export(String, "TimelineDropdown") var timeline: String
 
 var dialog_resource
 var characters
@@ -23,8 +24,8 @@ var questions #for keeping track of the questions answered
 
 func _ready():
 	# Checking if the dialog should read the code from a external file
-	if timeline_id != '':
-		dialog_script = set_current_dialog('/' + timeline_id + '.json')
+	if timeline != '':
+		dialog_script = set_current_dialog('/' + timeline + '.json')
 
 	# Connecting resize signal
 	get_viewport().connect("size_changed", self, "resize_main")

addons/dialogic/Other/inspector_timeline_picker.gd

@@ -0,0 +1,22 @@
+extends EditorInspectorPlugin
+
+var TimelinePicker = preload("res://addons/dialogic/Other/timeline_picker.gd")
+
+
+func can_handle(object):
+	# We support all objects in this example.
+	return true
+
+
+func parse_property(object, type, path, hint, hint_text, usage):
+	# We check for this hint text. It would look like: export(String, "TimelineDropdown")
+	if hint_text == "TimelineDropdown":
+		# We handle properties of type string.
+		if type == TYPE_STRING:
+			# Create an instance of the custom property editor and register
+			# it to a specific property path.
+			add_property_editor(path, TimelinePicker.new())
+			# Inform the editor to remove the default property editor for
+			# this property type.
+			return true
+		return false

addons/dialogic/Other/timeline_picker.gd

@@ -0,0 +1,57 @@
+tool
+extends EditorProperty
+
+
+# The main control for editing the property.
+var timelines_dropdown = MenuButton.new()
+# An internal value of the property.
+var current_value = ''
+# A guard against internal changes when the property is updated.
+var updating = false
+
+
+func _init():
+	# Add the control as a direct child of EditorProperty node.
+	add_child(timelines_dropdown)
+	# Make sure the control is able to retain the focus.
+	add_focusable(timelines_dropdown)
+	# Setup the initial state and connect to the signal to track changes.
+	timelines_dropdown.connect("about_to_show", self, "_about_to_show_menu")
+	timelines_dropdown.get_popup().connect("index_pressed", self, '_on_timeline_selected')
+
+
+func _about_to_show_menu():
+	# Ignore the signal if the property is currently being updated.
+	if (updating):
+		return
+
+	# Adding timelines
+	timelines_dropdown.get_popup().clear()
+	var index = 0
+	for c in DialogicUtil.get_timeline_list():
+		timelines_dropdown.get_popup().add_item(c['name'])
+		timelines_dropdown.get_popup().set_item_metadata(index, {'file': c['file'], 'color': c['color']})
+		index += 1
+
+func _on_timeline_selected(index):
+	var text = timelines_dropdown.get_popup().get_item_text(index)
+	var metadata = timelines_dropdown.get_popup().get_item_metadata(index)
+	current_value = metadata['file'].replace('.json', '')
+	timelines_dropdown.text = text
+	emit_changed(get_edited_property(), current_value)
+
+
+func update_property():
+	# Read the current value from the property.
+	var new_value = get_edited_object()[get_edited_property()]
+	if (new_value == current_value):
+		return
+
+	# Update the control with the new value.
+	updating = true
+	current_value = new_value
+	# Checking for the display name
+	for c in DialogicUtil.get_timeline_list():
+		if c['file'].replace('.json', '') == current_value:
+			timelines_dropdown.text = c['name']
+	updating = false

addons/dialogic/dialogic.gd

@@ -5,15 +5,21 @@ var _editor_view # This is the plugin Scene
 var _panel_button: Button
 var _editor_selection: EditorSelection
 
-func _enter_tree():
+var _parts_inspector
+
+func _enter_tree() -> void:
+	_parts_inspector = preload("res://addons/dialogic/Other/inspector_timeline_picker.gd").new()
+	add_inspector_plugin(_parts_inspector)
+	
 	_add_custom_editor_view()
 
 	get_editor_interface().get_editor_viewport().add_child(_editor_view)
 	# Hide the main panel. Very much required.
 	make_visible(false)
 
-func _exit_tree():
+func _exit_tree() -> void:
 	_remove_custom_editor_view()
+	remove_inspector_plugin(_parts_inspector)
 
 func has_main_screen():
 	return true