Avoid creating zero-sized textures for titlebars

Creating a zero-sized wlr_texture is incorrect.

(cherry picked from commit 6327f1b36196d5b6e22be9c9f839f29d5f23f346)

1 files changed, 4 insertions, 0 deletions

diff --git a/sway/tree/container.c b/sway/tree/container.c
index 68fbec2f..e36b915e 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -531,6 +531,10 @@ static void update_title_texture(struct sway_container *con,
 	cairo_surface_destroy(dummy_surface);
 	cairo_destroy(c);
 
+	if (width == 0 || height == 0) {
+		return;
+	}
+
 	cairo_surface_t *surface = cairo_image_surface_create(
 			CAIRO_FORMAT_ARGB32, width, height);
 	cairo_t *cairo = cairo_create(surface);