From 532d662722da1fa8cce211ced79da575059d359c Mon Sep 17 00:00:00 2001
From: Ben Harris <bjh21@bjh21.me.uk>
Date: Thu, 27 Oct 2022 10:12:54 +0100
Subject: js: Very bad attempt at making puzzles change size when zooming

This has the entertaining consequence that repeatedly zooming in and out
causes puzzles to gradually shrink, thus demonstrating that recording
the nominal size correctly will be necessary.
---
 emcclib.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'emcclib.js')

diff --git a/emcclib.js b/emcclib.js
index 17fd880..f29137a 100644
--- a/emcclib.js
+++ b/emcclib.js
@@ -544,12 +544,15 @@ mergeInto(LibraryManager.library, {
      * size.
      */
     js_canvas_set_size: function(w, h) {
+        var dpr = window.devicePixelRatio || 1;
         onscreen_canvas.width = w;
         offscreen_canvas.width = w;
-        resizable_div.style.width = w / (window.devicePixelRatio || 1) + "px";
+        resizable_div.style.width = w / dpr + "px";
+        nominal_width = w / dpr;
 
         onscreen_canvas.height = h;
         offscreen_canvas.height = h;
+        nominal_height = h / dpr;
     },
 
     /*
-- 
cgit v1.1