From e9aac4ce8ff01fa0d7c471b90921d1a13ff671b2 Mon Sep 17 00:00:00 2001
From: Consolatis <35009135+Consolatis@users.noreply.github.com>
Date: Mon, 26 Dec 2022 23:10:11 +0100
Subject: [PATCH] src/view.c: prevent fullscreen with no outputs available

---
 src/view.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/view.c b/src/view.c
index 61f7904f..e932b366 100644
--- a/src/view.c
+++ b/src/view.c
@@ -396,6 +396,7 @@ view_apply_tiled_geometry(struct view *view, struct output *output)
 static void
 view_apply_fullscreen_geometry(struct view *view, struct wlr_output *wlr_output)
 {
+	assert(wlr_output);
 	struct output *output =
 		output_from_wlr_output(view->server, wlr_output);
 	struct wlr_box box = { 0 };
@@ -619,6 +620,13 @@ view_set_fullscreen(struct view *view, bool fullscreen,
 	if (fullscreen != !view->fullscreen) {
 		return;
 	}
+	if (!wlr_output) {
+		wlr_output = view_wlr_output(view);
+		if (!wlr_output && fullscreen) {
+			/* Prevent fullscreen with no available outputs */
+			return;
+		}
+	}
 	if (view->impl->set_fullscreen) {
 		view->impl->set_fullscreen(view, fullscreen);
 	}
@@ -626,9 +634,6 @@ view_set_fullscreen(struct view *view, bool fullscreen,
 		wlr_foreign_toplevel_handle_v1_set_fullscreen(
 			view->toplevel_handle, fullscreen);
 	}
-	if (!wlr_output) {
-		wlr_output = view_wlr_output(view);
-	}
 	if (fullscreen) {
 		/*
 		 * Fullscreen via keybind or client request cancels