Ticket #30359: 30359.patch

src/wp-admin/js/widgets.js

@@ -739 +739 @@
         }
 };
 
+
+
+var elmnt1 = document.querySelector(".widget-liquid-right");
+var elmnt2 = document.querySelector(".widget-liquid-left");
+
+var isInViewport = function (elmnt1) {
+    var bounding = elmnt1.getBoundingClientRect();
+    return (
+        bounding.top >= 0 &&
+        bounding.left >= 0 &&
+        bounding.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
+        bounding.right <= (window.innerWidth || document.documentElement.clientWidth)
+    );
+};
+
+if (isInViewport(elmnt1)) {
+    elmnt1.style.position = "sticky";
+        elmnt1.style.position = "-webkit-sticky";
+        elmnt1.style.top = "42px";
+}
+
+
+
+window.onscroll = function scrollBottom(){
+    if(elmnt1.getBoundingClientRect().bottom <= window.innerHeight) {           
+                ////
+          } 
+
+    if(elmnt2.getBoundingClientRect().bottom <= window.innerHeight) {           
+                ////
+          } 
+}
+
+
 $document.ready( function(){ wpWidgets.init(); } );
 
 })(jQuery);