Added ability to specify direction to the 'setAllowScrolling' method.

README.md

@@ -209,11 +209,21 @@ $.fn.pagepiling.moveTo(3);
 $.fn.pagepiling.moveTo(3);
 ```
 
-### setAllowScrolling(boolean)
+### setAllowScrolling(boolean, [directions])
 Adds or remove the possibility of scrolling through sections by using the mouse wheel/trackpad or touch gestures (which is active by default).
 
+- `directions`: (optional parameter) Admitted values: `all`, `up`, `down`, `left`, `right` or a combination of them separated by commas like `down, right`. It defines the direction for which the scrolling will be enabled or disabled.
+
 ```javascript
-$.fn.pagepiling.setAllowScrolling(false);
+
+//disabling scrolling
+$.fn.fullpage.setAllowScrolling(false);
+
+//disabling scrolling down
+$.fn.fullpage.setAllowScrolling(false, 'down');
+
+//disabling scrolling down and right
+$.fn.fullpage.setAllowScrolling(false, 'down, right');
 ```
 
 ### setKeyboardScrolling(boolean)

jquery.pagepiling.js

@@ -18,6 +18,7 @@
         var lastAnimation = 0;
         var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0) || (navigator.maxTouchPoints));
         var touchStartY = 0, touchStartX = 0, touchEndY = 0, touchEndX = 0;
+        var isScrollAllowed = { 'up':true, 'down':true, 'left':true, 'right':true };
 
         //Defines the delay to take place before being able to scroll to the next section
         //BE CAREFUL! Not recommened to change it under 400 for a good behavior in laptops and
@@ -79,8 +80,18 @@
 
         /**
         * Adds or remove the possiblity of scrolling through sections by using the mouse wheel/trackpad or touch gestures.
+        * Optionally a second parameter can be used to specify the direction for which the action will be applied.
+        *
+        * @param directions string containing the direction or directions separated by comma.
         */
         PP.setAllowScrolling = function (value){
+            if(typeof directions != 'undefined'){
+                directions = directions.replace(/ /g,'').split(',');
+
+                $.each(directions, function (index, direction){
+                    setIsScrollable(value, direction);
+                });
+            }
             if(value){
                 PP.setMouseWheelScrolling(true);
                 addTouchHandler();
@@ -589,8 +600,10 @@
         * by 'automatically' scrolling a section or by using the default and normal scrolling.
         */
         function scrolling(type, scrollable){
-            var check;
-            var scrollSection;
+            if (!isScrollAllowed[type]){
+                return;
+            }
+            var check, scrollSection;
 
             if(type == 'down'){
                 check = 'bottom';
@@ -739,6 +752,19 @@
             }
         }
 
+        /**
+        * Set the allowed scroll direction
+        */
+        function setIsScrollable(value, direction){
+            switch (direction){
+                case 'up': isScrollAllowed.up = value; break;
+                case 'down': isScrollAllowed.down = value; break;
+                case 'left': isScrollAllowed.left = value; break;
+                case 'right': isScrollAllowed.right = value; break;
+                case 'all': PP.setAllowScrolling(value);
+            }
+        }
+
         /* Detecting touch events
         */
         function touchMoveHandler(event){