Merge pull request #366 from dorilla/feature/stop-propagation-on-click

Allow the clicking of a rail to propagate

README.md

@@ -308,6 +308,11 @@ The number of pixels the content width can surpass the container width without e
 The number of pixels the content height can surpass the container height without enabling the Y axis scroll bar. Allows some "wiggle room" or "offset break", so that Y axis scroll bar is not enabled just because of a few pixels.  
 **Default: 0**
 
+### stopPropagationOnClick
+When set to false, when clicking on a rail, the click event will be allowed to propagate.
+
+**Default: true**
+
 ## Contribution
 
 #### Please read [Contributing](https://github.com/noraesae/perfect-scrollbar/wiki/Contributing) in the wiki before making any contribution.

src/js/plugin/default-setting.js

@@ -14,5 +14,6 @@ module.exports = {
   suppressScrollX: false,
   suppressScrollY: false,
   scrollXMarginOffset: 0,
-  scrollYMarginOffset: 0
+  scrollYMarginOffset: 0,
+  stopPropagationOnClick: true
 };

src/js/plugin/handler/click-rail.js

@@ -13,7 +13,9 @@ function bindClickRailHandler(element, i) {
   }
   var stopPropagation = window.Event.prototype.stopPropagation.bind;
 
+  if (i.settings.stopPropagationOnClick) {
     i.event.bind(i.scrollbarY, 'click', stopPropagation);
+  }
   i.event.bind(i.scrollbarYRail, 'click', function (e) {
     var halfOfScrollbarLength = h.toInt(i.scrollbarYHeight / 2);
     var positionTop = i.railYRatio * (e.pageY - window.scrollY - pageOffset(i.scrollbarYRail).top - halfOfScrollbarLength);
@@ -32,7 +34,9 @@ function bindClickRailHandler(element, i) {
     e.stopPropagation();
   });
 
+  if (i.settings.stopPropagationOnClick) {
     i.event.bind(i.scrollbarX, 'click', stopPropagation);
+  }
   i.event.bind(i.scrollbarXRail, 'click', function (e) {
     var halfOfScrollbarLength = h.toInt(i.scrollbarXWidth / 2);
     var positionLeft = i.railXRatio * (e.pageX - window.scrollX - pageOffset(i.scrollbarXRail).left - halfOfScrollbarLength);