From 03b8fd01864db0b71490400c08d7a9c9a7763223 Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Mon, 25 Dec 2017 13:26:28 -0800
Subject: [PATCH] UI: Call frontend callbacks in reverse order

Allows safely removing callbacks from within the callbacks themselves.
---
 UI/api-interface.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/UI/api-interface.cpp b/UI/api-interface.cpp
index dd17db0b8..b7d0a8c3b 100644
--- a/UI/api-interface.cpp
+++ b/UI/api-interface.cpp
@@ -428,7 +428,8 @@ struct OBSStudioAPI : obs_frontend_callbacks {
 
 	void on_load(obs_data_t *settings) override
 	{
-		for (auto cb : saveCallbacks)
+		for (size_t i = saveCallbacks.size(); i > 0; i--) {
+			auto cb = saveCallbacks[i - 1];
 			cb.callback(settings, false, cb.private_data);
 		}
 	}
@@ -443,8 +444,10 @@ struct OBSStudioAPI : obs_frontend_callbacks {
 
 	void on_save(obs_data_t *settings) override
 	{
-		for (auto cb : saveCallbacks)
+		for (size_t i = saveCallbacks.size(); i > 0; i--) {
+			auto cb = saveCallbacks[i - 1];
 			cb.callback(settings, true, cb.private_data);
+		}
 	}
 
 	void on_event(enum obs_frontend_event event) override
@@ -452,8 +455,10 @@ struct OBSStudioAPI : obs_frontend_callbacks {
 		if (main->disableSaving)
 			return;
 
-		for (auto cb : callbacks)
+		for (size_t i = callbacks.size(); i > 0; i--) {
+			auto cb = callbacks[i - 1];
 			cb.callback(event, cb.private_data);
+		}
 	}
 };