From 14ed2048450d55a0edafb675f1d07e89c8b53ad0 Mon Sep 17 00:00:00 2001
From: Dave Pagurek <davepagurek@gmail.com>
Date: Thu, 6 Oct 2022 20:00:58 -0400
Subject: [PATCH] Make sure setAttributes updates lingering references to the
 old canvas

---
 src/webgl/p5.RendererGL.js       |  1 +
 test/unit/webgl/p5.RendererGL.js | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/src/webgl/p5.RendererGL.js b/src/webgl/p5.RendererGL.js
index ab22ad2808..158c49efc0 100755
--- a/src/webgl/p5.RendererGL.js
+++ b/src/webgl/p5.RendererGL.js
@@ -297,6 +297,7 @@ p5.RendererGL.prototype._resetContext = function(options, callback) {
       document.body.appendChild(c);
     }
     this._pInst.canvas = c;
+    this.canvas = c;
   }
 
   const renderer = new p5.RendererGL(
diff --git a/test/unit/webgl/p5.RendererGL.js b/test/unit/webgl/p5.RendererGL.js
index b0f60762f4..71753a5e85 100644
--- a/test/unit/webgl/p5.RendererGL.js
+++ b/test/unit/webgl/p5.RendererGL.js
@@ -756,4 +756,15 @@ suite('p5.RendererGL', function() {
       done();
     });
   });
+
+  suite('setAttributes', function() {
+    test('It leaves a reference to the correct canvas', function(done) {
+      const renderer = myp5.createCanvas(10, 10, myp5.WEBGL);
+      assert.equal(myp5.canvas, renderer.canvas);
+
+      myp5.setAttributes({ alpha: true });
+      assert.equal(myp5.canvas, renderer.canvas);
+      done();
+    });
+  });
 });