From 1e70d95724e7883702d14255cf7614854cae051b Mon Sep 17 00:00:00 2001
From: Jonathan Turner <jturner@mozilla.com>
Date: Thu, 13 Apr 2017 10:23:04 +1200
Subject: [PATCH] Don't unwrap for unknown keys

---
 ports/glutin/window.rs | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/ports/glutin/window.rs b/ports/glutin/window.rs
index 7fd69d51a9e..87f583f65b3 100644
--- a/ports/glutin/window.rs
+++ b/ports/glutin/window.rs
@@ -373,11 +373,16 @@ impl Window {
         } else {
             // Only send the character if we can print it (by ignoring characters like backspace)
             if !ch.is_control() {
-                let event = WindowEvent::KeyEvent(Some(ch),
-                                                  Window::char_to_script_key(ch).unwrap(),
-                                                  KeyState::Pressed,
-                                                  modifiers);
-                self.event_queue.borrow_mut().push(event);
+                match Window::char_to_script_key(ch) {
+                    Some(key) => {
+                        let event = WindowEvent::KeyEvent(Some(ch),
+                                                          key,
+                                                          KeyState::Pressed,
+                                                          modifiers);
+                        self.event_queue.borrow_mut().push(event);
+                    }
+                    None => {}
+                }
             }
         }
         self.last_pressed_key.set(None);