closes #5152

package.json

@@ -52,7 +52,7 @@
     "morgan": "^1.3.2",
     "mousetrap": "^1.5.3",
     "nconf": "~0.8.2",
-    "nodebb-plugin-composer-default": "4.2.12",
+    "nodebb-plugin-composer-default": "4.2.13",
     "nodebb-plugin-dbsearch": "1.0.3",
     "nodebb-plugin-emoji-extended": "1.1.1",
     "nodebb-plugin-emoji-one": "1.1.5",

public/src/modules/scrollStop.js

@@ -0,0 +1,32 @@
+'use strict';
+
+/* globals console, define */
+
+/*
+	The point of this library is to enhance(tm) a textarea so that if scrolled,
+	you can only scroll to the top of it and the event doesn't bubble up to
+	the document... because it does... and it's annoying at times.
+
+	While I'm here, might I say this is a solved issue on Linux?
+*/
+
+define('scrollStop', function () {
+	var Module = {};
+
+	Module.apply = function (element) {
+		$(element).on('mousewheel', function (e) {
+			var scrollTop = this.scrollTop;
+			var scrollHeight = this.scrollHeight;
+			var elementHeight = this.getBoundingClientRect().height;
+			
+			if (
+				(e.originalEvent.deltaY < 0 && scrollTop === 0) ||							// scroll up
+				(e.originalEvent.deltaY > 0 && (elementHeight + scrollTop) > scrollHeight)	// scroll down
+			) {
+				return false;
+			}
+		});
+	};
+
+	return Module;
+});