Surface::draw(): check if surface is configured

Fixes a protocol error.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/bar_state.rs b/src/bar_state.rs
index 2cbb677..a7937e2 100644
--- a/src/bar_state.rs
+++ b/src/bar_state.rs
@@ -327,6 +327,10 @@ impl Surface {
     }
 
     fn draw(&mut self, blocks: &[Block], blocks_cache: &mut Vec<ComputedBlock>) {
+        if self.dimensions == (0, 0) {
+            return;
+        }
+
         let config = self.config.borrow();
 
         let stride = 4 * self.dimensions.0 as i32;