From 1590b2a65e51ec7b679a2a4648402c5f07bec8ce Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Wed, 16 Nov 2011 22:43:56 +0000
Subject: [PATCH] Add validator to the subtitle save command to check if there
 are actually unsaved changes

Originally committed to SVN as r5868.
---
 aegisub/src/command/subtitle.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/aegisub/src/command/subtitle.cpp b/aegisub/src/command/subtitle.cpp
index d7f92b826..300e1af3f 100644
--- a/aegisub/src/command/subtitle.cpp
+++ b/aegisub/src/command/subtitle.cpp
@@ -350,10 +350,15 @@ struct subtitle_save : public Command {
 	STR_MENU("&Save Subtitles")
 	STR_DISP("Save Subtitles")
 	STR_HELP("Saves subtitles.")
+	CMD_TYPE(COMMAND_VALIDATE)
 
 	void operator()(agi::Context *c) {
 		save_subtitles(c, c->ass->CanSave() ? c->ass->filename : "");
 	}
+
+	bool Validate(const agi::Context *c) {
+		return c->ass->IsModified();
+	}
 };