add a mapping/resources installation dialog

1 files changed, 9 insertions, 5 deletions

diff --git a/html/dialog.js b/html/dialog.js
index a2406e8..a4e275f 100644
--- a/html/dialog.js
+++ b/html/dialog.js
@@ -131,11 +131,15 @@ const loader = (ctx, ...msg) => show_dialog(ctx, null, msg);
 #EXPORT loader
 
 /*
- * Wrapper around target.addEventListener() that makes the requested callback
- * only execute if dialog is not shown.
+ * Wrapper the requested callback into one that only executes it if dialog is
+ * not shown.
  */
-function onevent(ctx, target, event, cb)
+function when_hidden(ctx, cb)
 {
-    target.addEventListener(event, e => !ctx.shown && cb(e));
+    function wrapped_cb(...args) {
+	if (!ctx.shown)
+	    return cb(...args);
+    }
+    return wrapped_cb;
 }
-#EXPORT onevent
+#EXPORT when_hidden