From b173d1ce2c9d9a0d138c5c93deec5c62e3e84c50 Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Fri, 15 Oct 2021 22:08:02 -0700
Subject: [PATCH] UI: Disable paste source menu items when removed

Disables the "Paste (Reference)" and "Paste (Copy)" for sources when the
sources that have been copied have been removed

Fixes obsproject/obs-studio#4074
Closes obsproject/obs-studio#4096
---
 UI/window-basic-main.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/UI/window-basic-main.cpp b/UI/window-basic-main.cpp
index 16cbcac1d..2de43655c 100644
--- a/UI/window-basic-main.cpp
+++ b/UI/window-basic-main.cpp
@@ -7611,12 +7611,21 @@ void OBSBasic::UpdateEditMenu()
 		filter_count = obs_source_filter_count(source);
 	}
 
+	for (size_t i = copySources.size(); i > 0; i--) {
+		const size_t idx = i - 1;
+		OBSWeakSource &weak = copySources[idx];
+		if (obs_weak_source_expired(weak))
+			copySources.erase(copySources.begin() + idx);
+	}
+
 	ui->actionCopySource->setEnabled(idx != -1);
 	ui->actionEditTransform->setEnabled(idx != -1);
 	ui->actionCopyTransform->setEnabled(idx != -1);
 	ui->actionCopyFilters->setEnabled(filter_count > 0);
 	ui->actionPasteFilters->setEnabled(
 		!obs_weak_source_expired(copyFiltersSource) && idx != -1);
+	ui->actionPasteRef->setEnabled(!!copySources.size());
+	ui->actionPasteDup->setEnabled(!!copySources.size());
 
 	ui->actionMoveUp->setEnabled(idx != -1);
 	ui->actionMoveDown->setEnabled(idx != -1);