public void OnEnable()
{
dialogue = target as Dialogue;
gameObject = EditorUtility.CreateGameObjectWithHideFlags(
"Dialogue Preview",
HideFlags.HideAndDontSave,
typeof(AudioSource)
);
source = gameObject.GetComponent <AudioSource>();
editorCoroutine = EditorCoroutine.Setup();
dialogue.SubtitleSystem.OnShowText += this.OnShowText;
dialogue.SubtitleSystem.OnClearText += this.OnClearText;
}