static/tgal.js (keyevent): Discard key events with spurious modifiers.

[tgal] / static / tgal.js

diff --git a/static/tgal.js b/static/tgal.js
index 33f380d4e56545a74e734e164d668b73d1cbe381..6e96dc2555058768326ff4b8d8f054e1ee5e4cf8 100644 (file)
--- a/static/tgal.js
+++ b/static/tgal.js
@@ -27,11 +27,13 @@
 /* Handle keyboard interaction. */
 addEventListener("keydown", function (ev) {
   var dir;
 /* Handle keyboard interaction. */
 addEventListener("keydown", function (ev) {
   var dir;

-  if (ev.key === " " || ev.key === "ArrowRight") dir = "next";
-  else if (ev.key === "Backspace" || ev.key === "ArrowLeft") dir = "prev";
-  else if (ev.key === "^") dir = "up";
+  if (ev.altKey || ev.ctrlKey || ev.metaKey) return;

   else if (ev.key === "<") dir = "first";
   else if (ev.key === ">") dir = "last";
   else if (ev.key === "<") dir = "first";
   else if (ev.key === ">") dir = "last";

+  else if (ev.key === "^") dir = "up";
+  else if (ev.shiftKey) return;
+  else if (ev.key === " " || ev.key === "ArrowRight") dir = "next";
+  else if (ev.key === "Backspace" || ev.key === "ArrowLeft") dir = "prev";

   else return;
   var elt = document.querySelector("link[rel=" + dir + "]");
   if (!elt) return;
   else return;
   var elt = document.querySelector("link[rel=" + dir + "]");
   if (!elt) return;