From 1b9c26d0e28bf5eeab864099bc422444bc439fd3 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 2 Jan 2023 17:04:08 -0500
Subject: Ensure that views have an event handler set

Otherwise, there will be crashes in the implementation.
---
 src/internal.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/internal.c b/src/internal.c
index bc5080f..2f277bb 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -109,6 +109,11 @@ puglPreRealize(PuglView* const view)
     return PUGL_BAD_BACKEND;
   }
 
+  // Ensure that the view has an event handler
+  if (!view->eventFunc) {
+    return PUGL_BAD_CONFIGURATION;
+  }
+
   // Set the size to the default if it hasn't already been set
   if (!isValidSize(view->frame.width, view->frame.height)) {
     const PuglViewSize defaultSize = view->sizeHints[PUGL_DEFAULT_SIZE];
-- 
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