Make AssFile handle autosaving on every commit itself rather than going through FrameMain

Originally committed to SVN as r5247.

aegisub/src/ass_file.cpp

@@ -800,6 +800,11 @@ int AssFile::Commit(wxString desc, CommitType type, int amendId) {
 		UndoStack.pop_front();
 	}
 
+	if (OPT_GET("App/Auto/Save on Every Change")->GetBool()) {
+		if (!filename.empty() && CanSave())
+			Save(filename);
+	}
+
 	AnnounceCommit(type);
 	return commitId;
 }

aegisub/src/frame_main.cpp

@@ -126,7 +126,7 @@ FrameMain::FrameMain (wxArrayString args)
 
 	StartupLog("Initializing context models");
 	AssFile::top = context->ass = new AssFile;
-	context->ass->AddCommitListener(&FrameMain::OnSubtitlesCommit, this);
+	context->ass->AddCommitListener(&FrameMain::UpdateTitle, this);
 	context->ass->AddFileOpenListener(&FrameMain::OnSubtitlesOpen, this);
 	context->ass->AddFileSaveListener(&FrameMain::UpdateTitle, this);
 
@@ -1135,15 +1135,6 @@ void FrameMain::OnAudioClose()
 	SetDisplayMode(-1, 0);
 }
 
-void FrameMain::OnSubtitlesCommit() {
-	if (OPT_GET("App/Auto/Save on Every Change")->GetBool()) {
-		if (context->ass->IsModified() && context->ass->CanSave())
-			(*cmd::get("subtitle/save"))(context.get());
-	}
-
-	UpdateTitle();
-}
-
 void FrameMain::OnSubtitlesOpen() {
 	UpdateTitle();
 

aegisub/src/frame_main.h

@@ -158,7 +158,6 @@ private:
 
 	void OnVideoOpen();
 
-	void OnSubtitlesCommit();
 	void OnSubtitlesOpen();
 	void OnSubtitlesSave();