Centralise Paypal pop-up as suggested at #9

qr-merger · Jan 18, 2020 · 084a93a · 084a93a
1 parent 5b8398d
commit 084a93a
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/assets/js/dev-files/function.original.js b/assets/js/dev-files/function.original.js
@@ -189,7 +189,18 @@ if (typeof paypal === "undefined" || paypal === null || paypal === "") {
 else {
         function openbox() {
             selected = "yes";
-            window.open(paypal, "_blank", "width=360,height=560");
+            function openpaypal(url, w, h) { // code from https://stackoverflow.com/questions/4068373/center-a-popup-window-on-screen?answertab=votes#tab-top
+                var dualScreenLeft = window.screenLeft != undefined ? window.screenLeft : window.screenX;
+                var dualScreenTop = window.screenTop != undefined ? window.screenTop : window.screenY;
+                var width = window.innerWidth ? window.innerWidth : document.documentElement.clientWidth ? document.documentElement.clientWidth : screen.width;
+                var height = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : screen.height; 
+                var systemZoom = width / window.screen.availWidth;
+                var left = (width - w) / 2 / systemZoom + dualScreenLeft
+                var top = (height - h) / 2 / systemZoom + dualScreenTop
+                var newWindow = window.open(url, "_blank", 'width=' + w / systemZoom + ', height=' + h / systemZoom + ', top=' + top + ', left=' + left);
+                if (window.focus) newWindow.focus();
+            }
+            openpaypal(paypal,'420','680');
         }
     }
 

diff --git a/assets/js/dev-files/function.original.min.js b/assets/js/dev-files/function.original.min.js