From 1ffa4368cc87f96955f5358b5896156753b59a4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fl=C3=A1vio=20Zavan?=
 <959292+flaviozavan@users.noreply.github.com>
Date: Sun, 17 Sep 2023 21:10:43 +0300
Subject: [PATCH] Fix xwayland fullscreen crash (#135)

Introduces a trivial fix for a crash in xwayland that could be triggered when a
view with NULL size hints tried to go fullscreen
---
 src/viv_xwayland_shell.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/viv_xwayland_shell.c b/src/viv_xwayland_shell.c
index 3832f20..521f28f 100644
--- a/src/viv_xwayland_shell.c
+++ b/src/viv_xwayland_shell.c
@@ -369,17 +369,20 @@ static void implementation_grow_and_center_fullscreen(struct viv_view *view) {
     }
 
     int width = output->wlr_output->width;
-    if ((hints->max_width > 0) && ((int) hints->max_width < width)) {
-        width = hints->max_width;
-    } else if ((hints->min_width > 0) && ((int) hints->min_width > width)) {
-        width = hints->min_width;
-    }
-
     int height = output->wlr_output->height;
-    if ((hints->max_height > 0) && ((int) hints->max_height < height)) {
-        height = hints->max_height;
-    } else if ((hints->min_height > 0) && ((int) hints->min_height > height)) {
-        height = hints->min_height;
+
+    if (hints) {
+        if ((hints->max_width > 0) && ((int) hints->max_width < width)) {
+            width = hints->max_width;
+        } else if ((hints->min_width > 0) && ((int) hints->min_width > width)) {
+            width = hints->min_width;
+        }
+
+        if ((hints->max_height > 0) && ((int) hints->max_height < height)) {
+            height = hints->max_height;
+        } else if ((hints->min_height > 0) && ((int) hints->min_height > height)) {
+            height = hints->min_height;
+        }
     }
 
     int x = (output->wlr_output->width - width) / 2;