From ba6fe216a4c0e5d2db58731f30b4daf5f8815adf Mon Sep 17 00:00:00 2001
From: Anton Grischenko <f0rmat1k@yandex-team.ru>
Date: Sun, 3 May 2015 13:09:20 +0500
Subject: [PATCH] Added prevent event method #5

---
 README.md                                 |  4 ++-
 demo/index.html                           |  7 ++---
 dist/amd/wheel-indicator.js               | 35 +++++++++++++++------
 dist/amd/wheel-indicator.min.js           |  2 +-
 dist/commonjs/wheel-indicator.js          | 35 +++++++++++++++------
 dist/commonjs/wheel-indicator.min.js      |  2 +-
 dist/es6/wheel-indicator.js               | 35 +++++++++++++++------
 dist/jquery/jquery.wheel-indicator.js     | 35 +++++++++++++++------
 dist/jquery/jquery.wheel-indicator.min.js |  2 +-
 dist/wheel-indicator.min.js               |  2 +-
 lib/wheel-indicator.js                    | 38 ++++++++++++++++++-----
 11 files changed, 140 insertions(+), 57 deletions(-)
diff --git a/README.md b/README.md
index 9e22cab..bef3ae9 100644
--- a/README.md
+++ b/README.md
@@ -13,13 +13,15 @@
   var indicator = new WheelIndicator(document.querySelector('.element'));
   
   indicator.on(function(e){
-      console.log(e.direction); // "up" or "down"
+      e.prevent(); // если необходимо
+      console.log(e.direction); // "up" или "down"
   });
 ```
 
 **jquery**  
 ```javascript
   $('.jquery').on('wheel-indicator', function(e){
+      e.prevent(); // если необходимо
       console.log(e.direction); // "up" or "down"
   });
 ```
diff --git a/demo/index.html b/demo/index.html
index 3ad0da9..7b72984 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -3,7 +3,7 @@
 <head>
 	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
 	<script src="../lib/wheel-indicator.js"></script>
-	<script src="../dist/jquery.wheel-indicator.js"></script>
+	<script src="../dist/jquery/jquery.wheel-indicator.js"></script>
 
     <style>
         .customZone, .jquery {
@@ -20,19 +20,18 @@
 
     <br /><br />
     jquery
-    <code>
-
-    </code>
     <div class="jquery"></div>
 
 <script>
     var indicator = new WheelIndicator(document.querySelector('.customZone'));
 
     indicator.on(function(e){
+        e.prevent();
         document.querySelector('.customZone').innerHTML = document.querySelector('.customZone').innerHTML + e.direction + '<br />';
     });
 
     $('.jquery').on('wheel-indicator', function(e){
+        e.prevent();
         $(this).append(e.direction + '<br />');
     });
 </script>
diff --git a/dist/amd/wheel-indicator.js b/dist/amd/wheel-indicator.js
index d9d3abe..246b7c4 100644
--- a/dist/amd/wheel-indicator.js
+++ b/dist/amd/wheel-indicator.js
@@ -10,10 +10,15 @@ define('wheel-indicator', function () {
         this.direction = '';
         this.delta = '';
         this.timer = '';
+        this.prevent = false;
 
         var self = this;
         addEvent(elem, eventWheel, function(event) {
-            processDelta(getDeltaY(event), self);
+            processDelta(event, self);
+
+            if (self.prevent) {
+                event.preventDefault();
+            }
         });
     }
 
@@ -22,13 +27,17 @@ define('wheel-indicator', function () {
 
         on: function(cb){
             this.callback = cb || function(){};
+
+            return this;
         }
     };
 
-    function triggerEvent(self){
-        var event = {};
+    function triggerEvent(self, event){
+        event.prevent = function(){
+            preventDefault.call(self);
+        };
         event.direction = self.direction;
-        self.callback(event);
+        self.callback.call(this, event);
     }
 
     var getDeltaY = function(event){
@@ -44,8 +53,14 @@ define('wheel-indicator', function () {
         getDeltaY(event);
     };
 
-    function processDelta(deltaY, self)  {
-        var stepAcceleration = 0, i;
+    function preventDefault(){
+        this.prevent = true;
+    }
+
+    function processDelta(event, self) {
+        var stepAcceleration = 0,
+            deltaY = getDeltaY(event),
+            i;
 
         self.direction = deltaY > 0 ? self.direction = 'down' : self.direction = 'up';
         self.delta = Math.abs(deltaY);
@@ -60,7 +75,7 @@ define('wheel-indicator', function () {
         }, 200);
 
         if(self.isStopped) {
-            triggerEvent(self);
+            triggerEvent(self, event);
             self.isStopped = false;
             self.isAcceleration = true;
             stepAcceleration = 1;
@@ -68,6 +83,7 @@ define('wheel-indicator', function () {
             self.memoryAcceleration.shift();
             self.memoryAcceleration.push(stepAcceleration);
         } else {
+
             self.last5values.shift();
             self.last5values.push(self.delta);
 
@@ -91,7 +107,7 @@ define('wheel-indicator', function () {
                 //Произошло ускорение
                 if(!self.isAcceleration) {
                     self.isAcceleration = true;
-                    triggerEvent(self);
+                    triggerEvent(self, event);
                 }
             }
         }
@@ -100,8 +116,7 @@ define('wheel-indicator', function () {
     function addEvent(elem, type, handler){
         if(window.addEventListener) {
             elem.addEventListener(type, handler, false);
-        }
-        if(window.attachEvent) {
+        } else if (window.attachEvent) {
             elem.attachEvent('on' + type, handler);
         }
     }
diff --git a/dist/amd/wheel-indicator.min.js b/dist/amd/wheel-indicator.min.js
index 7b6b7cc..b38bf07 100644
--- a/dist/amd/wheel-indicator.min.js
+++ b/dist/amd/wheel-indicator.min.js
@@ -1 +1 @@
-define("wheel-indicator",function(){var e=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="";var t=this;n(e,o,function(e){i(c(e),t)})}function t(e){var t={};t.direction=e.direction,e.callback(t)}function i(e,i){var n,o=0;if(i.direction=i.direction=e>0?"down":"up",i.delta=Math.abs(e),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i)))}}function n(e,t,i){window.addEventListener&&e.addEventListener(t,i,!1),window.attachEvent&&e.attachEvent("on"+t,i)}var o="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){this.callback=e||function(){}}};var c=function(e){(c=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();return e});
\ No newline at end of file
+define("wheel-indicator",function(){var e=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="",this.prevent=!1;var t=this;o(e,c,function(e){n(e,t),t.prevent&&e.preventDefault()})}function t(e,t){t.prevent=function(){i.call(e)},t.direction=e.direction,e.callback.call(this,t)}function i(){this.prevent=!0}function n(e,i){var n,o=0,c=r(e);if(i.direction=i.direction=c>0?"down":"up",i.delta=Math.abs(c),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i,e),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i,e)))}}function o(e,t,i){window.addEventListener?e.addEventListener(t,i,!1):window.attachEvent&&e.attachEvent("on"+t,i)}var c="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){return this.callback=e||function(){},this}};var r=function(e){(r=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();return e});
\ No newline at end of file
diff --git a/dist/commonjs/wheel-indicator.js b/dist/commonjs/wheel-indicator.js
index 7a33c86..bb8b09b 100644
--- a/dist/commonjs/wheel-indicator.js
+++ b/dist/commonjs/wheel-indicator.js
@@ -9,10 +9,15 @@ var WheelIndicator = (function() {
         this.direction = '';
         this.delta = '';
         this.timer = '';
+        this.prevent = false;
 
         var self = this;
         addEvent(elem, eventWheel, function(event) {
-            processDelta(getDeltaY(event), self);
+            processDelta(event, self);
+
+            if (self.prevent) {
+                event.preventDefault();
+            }
         });
     }
 
@@ -21,13 +26,17 @@ var WheelIndicator = (function() {
 
         on: function(cb){
             this.callback = cb || function(){};
+
+            return this;
         }
     };
 
-    function triggerEvent(self){
-        var event = {};
+    function triggerEvent(self, event){
+        event.prevent = function(){
+            preventDefault.call(self);
+        };
         event.direction = self.direction;
-        self.callback(event);
+        self.callback.call(this, event);
     }
 
     var getDeltaY = function(event){
@@ -43,8 +52,14 @@ var WheelIndicator = (function() {
         getDeltaY(event);
     };
 
-    function processDelta(deltaY, self)  {
-        var stepAcceleration = 0, i;
+    function preventDefault(){
+        this.prevent = true;
+    }
+
+    function processDelta(event, self) {
+        var stepAcceleration = 0,
+            deltaY = getDeltaY(event),
+            i;
 
         self.direction = deltaY > 0 ? self.direction = 'down' : self.direction = 'up';
         self.delta = Math.abs(deltaY);
@@ -59,7 +74,7 @@ var WheelIndicator = (function() {
         }, 200);
 
         if(self.isStopped) {
-            triggerEvent(self);
+            triggerEvent(self, event);
             self.isStopped = false;
             self.isAcceleration = true;
             stepAcceleration = 1;
@@ -67,6 +82,7 @@ var WheelIndicator = (function() {
             self.memoryAcceleration.shift();
             self.memoryAcceleration.push(stepAcceleration);
         } else {
+
             self.last5values.shift();
             self.last5values.push(self.delta);
 
@@ -90,7 +106,7 @@ var WheelIndicator = (function() {
                 //Произошло ускорение
                 if(!self.isAcceleration) {
                     self.isAcceleration = true;
-                    triggerEvent(self);
+                    triggerEvent(self, event);
                 }
             }
         }
@@ -99,8 +115,7 @@ var WheelIndicator = (function() {
     function addEvent(elem, type, handler){
         if(window.addEventListener) {
             elem.addEventListener(type, handler, false);
-        }
-        if(window.attachEvent) {
+        } else if (window.attachEvent) {
             elem.attachEvent('on' + type, handler);
         }
     }
diff --git a/dist/commonjs/wheel-indicator.min.js b/dist/commonjs/wheel-indicator.min.js
index d39be1f..9511a02 100644
--- a/dist/commonjs/wheel-indicator.min.js
+++ b/dist/commonjs/wheel-indicator.min.js
@@ -1 +1 @@
-var WheelIndicator=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="";var t=this;o(e,n,function(e){i(c(e),t)})}function t(e){var t={};t.direction=e.direction,e.callback(t)}function i(e,i){var o,n=0;if(i.direction=i.direction=e>0?"down":"up",i.delta=Math.abs(e),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i),i.isStopped=!1,i.isAcceleration=!0,n=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(n);else{for(i.last5values.shift(),i.last5values.push(i.delta),o=5;o--;1==o)i.last5values[o-1]<i.last5values[o]&&n++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(n),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i)))}}function o(e,t,i){window.addEventListener&&e.addEventListener(t,i,!1),window.attachEvent&&e.attachEvent("on"+t,i)}var n="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){this.callback=e||function(){}}};var c=function(e){(c=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();exports.WheelIndicator=WheelIndicator;
\ No newline at end of file
+var WheelIndicator=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="",this.prevent=!1;var t=this;o(e,c,function(e){n(e,t),t.prevent&&e.preventDefault()})}function t(e,t){t.prevent=function(){i.call(e)},t.direction=e.direction,e.callback.call(this,t)}function i(){this.prevent=!0}function n(e,i){var n,o=0,c=r(e);if(i.direction=i.direction=c>0?"down":"up",i.delta=Math.abs(c),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i,e),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i,e)))}}function o(e,t,i){window.addEventListener?e.addEventListener(t,i,!1):window.attachEvent&&e.attachEvent("on"+t,i)}var c="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){return this.callback=e||function(){},this}};var r=function(e){(r=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();exports.WheelIndicator=WheelIndicator;
\ No newline at end of file
diff --git a/dist/es6/wheel-indicator.js b/dist/es6/wheel-indicator.js
index c2d1565..6a47fd2 100644
--- a/dist/es6/wheel-indicator.js
+++ b/dist/es6/wheel-indicator.js
@@ -9,10 +9,15 @@ var WheelIndicator = (function() {
         this.direction = '';
         this.delta = '';
         this.timer = '';
+        this.prevent = false;
 
         var self = this;
         addEvent(elem, eventWheel, function(event) {
-            processDelta(getDeltaY(event), self);
+            processDelta(event, self);
+
+            if (self.prevent) {
+                event.preventDefault();
+            }
         });
     }
 
@@ -21,13 +26,17 @@ var WheelIndicator = (function() {
 
         on: function(cb){
             this.callback = cb || function(){};
+
+            return this;
         }
     };
 
-    function triggerEvent(self){
-        var event = {};
+    function triggerEvent(self, event){
+        event.prevent = function(){
+            preventDefault.call(self);
+        };
         event.direction = self.direction;
-        self.callback(event);
+        self.callback.call(this, event);
     }
 
     var getDeltaY = function(event){
@@ -43,8 +52,14 @@ var WheelIndicator = (function() {
         getDeltaY(event);
     };
 
-    function processDelta(deltaY, self)  {
-        var stepAcceleration = 0, i;
+    function preventDefault(){
+        this.prevent = true;
+    }
+
+    function processDelta(event, self) {
+        var stepAcceleration = 0,
+            deltaY = getDeltaY(event),
+            i;
 
         self.direction = deltaY > 0 ? self.direction = 'down' : self.direction = 'up';
         self.delta = Math.abs(deltaY);
@@ -59,7 +74,7 @@ var WheelIndicator = (function() {
         }, 200);
 
         if(self.isStopped) {
-            triggerEvent(self);
+            triggerEvent(self, event);
             self.isStopped = false;
             self.isAcceleration = true;
             stepAcceleration = 1;
@@ -67,6 +82,7 @@ var WheelIndicator = (function() {
             self.memoryAcceleration.shift();
             self.memoryAcceleration.push(stepAcceleration);
         } else {
+
             self.last5values.shift();
             self.last5values.push(self.delta);
 
@@ -90,7 +106,7 @@ var WheelIndicator = (function() {
                 //Произошло ускорение
                 if(!self.isAcceleration) {
                     self.isAcceleration = true;
-                    triggerEvent(self);
+                    triggerEvent(self, event);
                 }
             }
         }
@@ -99,8 +115,7 @@ var WheelIndicator = (function() {
     function addEvent(elem, type, handler){
         if(window.addEventListener) {
             elem.addEventListener(type, handler, false);
-        }
-        if(window.attachEvent) {
+        } else if (window.attachEvent) {
             elem.attachEvent('on' + type, handler);
         }
     }
diff --git a/dist/jquery/jquery.wheel-indicator.js b/dist/jquery/jquery.wheel-indicator.js
index 265c70c..a0eb2e7 100644
--- a/dist/jquery/jquery.wheel-indicator.js
+++ b/dist/jquery/jquery.wheel-indicator.js
@@ -10,10 +10,15 @@
         this.direction = '';
         this.delta = '';
         this.timer = '';
+        this.prevent = false;
 
         var self = this;
         addEvent(elem, eventWheel, function(event) {
-            processDelta(getDeltaY(event), self);
+            processDelta(event, self);
+
+            if (self.prevent) {
+                event.preventDefault();
+            }
         });
     }
 
@@ -22,13 +27,17 @@
 
         on: function(cb){
             this.callback = cb || function(){};
+
+            return this;
         }
     };
 
-    function triggerEvent(self){
-        var event = {};
+    function triggerEvent(self, event){
+        event.prevent = function(){
+            preventDefault.call(self);
+        };
         event.direction = self.direction;
-        self.callback(event);
+        self.callback.call(this, event);
     }
 
     var getDeltaY = function(event){
@@ -44,8 +53,14 @@
         getDeltaY(event);
     };
 
-    function processDelta(deltaY, self)  {
-        var stepAcceleration = 0, i;
+    function preventDefault(){
+        this.prevent = true;
+    }
+
+    function processDelta(event, self) {
+        var stepAcceleration = 0,
+            deltaY = getDeltaY(event),
+            i;
 
         self.direction = deltaY > 0 ? self.direction = 'down' : self.direction = 'up';
         self.delta = Math.abs(deltaY);
@@ -60,7 +75,7 @@
         }, 200);
 
         if(self.isStopped) {
-            triggerEvent(self);
+            triggerEvent(self, event);
             self.isStopped = false;
             self.isAcceleration = true;
             stepAcceleration = 1;
@@ -68,6 +83,7 @@
             self.memoryAcceleration.shift();
             self.memoryAcceleration.push(stepAcceleration);
         } else {
+
             self.last5values.shift();
             self.last5values.push(self.delta);
 
@@ -91,7 +107,7 @@
                 //Произошло ускорение
                 if(!self.isAcceleration) {
                     self.isAcceleration = true;
-                    triggerEvent(self);
+                    triggerEvent(self, event);
                 }
             }
         }
@@ -100,8 +116,7 @@
     function addEvent(elem, type, handler){
         if(window.addEventListener) {
             elem.addEventListener(type, handler, false);
-        }
-        if(window.attachEvent) {
+        } else if (window.attachEvent) {
             elem.attachEvent('on' + type, handler);
         }
     }
diff --git a/dist/jquery/jquery.wheel-indicator.min.js b/dist/jquery/jquery.wheel-indicator.min.js
index c49e55a..2240ee1 100644
--- a/dist/jquery/jquery.wheel-indicator.min.js
+++ b/dist/jquery/jquery.wheel-indicator.min.js
@@ -1 +1 @@
-!function(e){var t=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="";var t=this;n(e,o,function(e){i(c(e),t)})}function t(e){var t={};t.direction=e.direction,e.callback(t)}function i(e,i){var n,o=0;if(i.direction=i.direction=e>0?"down":"up",i.delta=Math.abs(e),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i)))}}function n(e,t,i){window.addEventListener&&e.addEventListener(t,i,!1),window.attachEvent&&e.attachEvent("on"+t,i)}var o="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){this.callback=e||function(){}}};var c=function(e){(c=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();e.event.special["wheel-indicator"]={setup:function(){var i=e(this);if(!i.data("wheel-indicator")){var n=new t(this);i.data("wheel-indicator",n),n.on(function(e){i.trigger("wheel-indicator",e)})}},handle:function(t,i){var n=e.extend({},t,i);return t.handleObj.handler.apply(this,[n,i])}}}(jQuery);
\ No newline at end of file
+!function(e){var t=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="",this.prevent=!1;var t=this;o(e,r,function(e){n(e,t),t.prevent&&e.preventDefault()})}function t(e,t){t.prevent=function(){i.call(e)},t.direction=e.direction,e.callback.call(this,t)}function i(){this.prevent=!0}function n(e,i){var n,o=0,r=c(e);if(i.direction=i.direction=r>0?"down":"up",i.delta=Math.abs(r),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i,e),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i,e)))}}function o(e,t,i){window.addEventListener?e.addEventListener(t,i,!1):window.attachEvent&&e.attachEvent("on"+t,i)}var r="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){return this.callback=e||function(){},this}};var c=function(e){(c=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();e.event.special["wheel-indicator"]={setup:function(){var i=e(this);if(!i.data("wheel-indicator")){var n=new t(this);i.data("wheel-indicator",n),n.on(function(e){i.trigger("wheel-indicator",e)})}},handle:function(t,i){var n=e.extend({},t,i);return t.handleObj.handler.apply(this,[n,i])}}}(jQuery);
\ No newline at end of file
diff --git a/dist/wheel-indicator.min.js b/dist/wheel-indicator.min.js
index 07cc2f4..d835ed3 100644
--- a/dist/wheel-indicator.min.js
+++ b/dist/wheel-indicator.min.js
@@ -1 +1 @@
-var WheelIndicator=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="";var t=this;o(e,n,function(e){i(c(e),t)})}function t(e){var t={};t.direction=e.direction,e.callback(t)}function i(e,i){var o,n=0;if(i.direction=i.direction=e>0?"down":"up",i.delta=Math.abs(e),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i),i.isStopped=!1,i.isAcceleration=!0,n=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(n);else{for(i.last5values.shift(),i.last5values.push(i.delta),o=5;o--;1==o)i.last5values[o-1]<i.last5values[o]&&n++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(n),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i)))}}function o(e,t,i){window.addEventListener&&e.addEventListener(t,i,!1),window.attachEvent&&e.attachEvent("on"+t,i)}var n="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){this.callback=e||function(){}}};var c=function(e){(c=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();
\ No newline at end of file
+var WheelIndicator=function(){function e(e){this.last5values=[0,0,0,0,0],this.memoryAcceleration=[0,0,0],this.isAcceleration=!1,this.isStopped=!0,this.direction="",this.delta="",this.timer="",this.prevent=!1;var t=this;o(e,c,function(e){n(e,t),t.prevent&&e.preventDefault()})}function t(e,t){t.prevent=function(){i.call(e)},t.direction=e.direction,e.callback.call(this,t)}function i(){this.prevent=!0}function n(e,i){var n,o=0,c=r(e);if(i.direction=i.direction=c>0?"down":"up",i.delta=Math.abs(c),clearTimeout(i.timer),i.timer=setTimeout(function(){i.last5values=[0,0,0,0,0],i.memoryAcceleration=[0,0,0],i.isStopped=!0,i.isAcceleration=!1},200),i.isStopped)t(i,e),i.isStopped=!1,i.isAcceleration=!0,o=1,i.memoryAcceleration.shift(),i.memoryAcceleration.push(o);else{for(i.last5values.shift(),i.last5values.push(i.delta),n=5;n--;1==n)i.last5values[n-1]<i.last5values[n]&&o++;i.memoryAcceleration.shift(),i.memoryAcceleration.push(o),i.memoryAcceleration[2]<i.memoryAcceleration[1]&&i.memoryAcceleration[1]<i.memoryAcceleration[0]&&(i.isAcceleration=!1),i.memoryAcceleration[2]>i.memoryAcceleration[1]&&i.memoryAcceleration[1]>i.memoryAcceleration[0]&&(i.isAcceleration||(i.isAcceleration=!0,t(i,e)))}}function o(e,t,i){window.addEventListener?e.addEventListener(t,i,!1):window.attachEvent&&e.attachEvent("on"+t,i)}var c="onwheel"in document?"wheel":"mousewheel";e.prototype={Constructor:e,on:function(e){return this.callback=e||function(){},this}};var r=function(e){(r=e.wheelDelta?function(e){return e.wheelDelta/-120}:function(e){return e.deltaY})(e)};return e}();
\ No newline at end of file
diff --git a/lib/wheel-indicator.js b/lib/wheel-indicator.js
index 4fefb8d..a1435b2 100644
--- a/lib/wheel-indicator.js
+++ b/lib/wheel-indicator.js
@@ -9,10 +9,13 @@ var WheelIndicator = (function() {
         this.direction = '';
         this.delta = '';
         this.timer = '';
+        this.prevent = false;
 
         var self = this;
         addEvent(elem, eventWheel, function(event) {
-            processDelta(getDeltaY(event), self);
+            processDelta(event, self);
+
+            if (self.prevent) preventDefault(event);
         });
     }
 
@@ -26,10 +29,12 @@ var WheelIndicator = (function() {
         }
     };
 
-    function triggerEvent(self){
-        var event = {};
+    function triggerEvent(self, event){
+        event.prevent = function(){
+            setPreventDefault.call(self);
+        };
         event.direction = self.direction;
-        self.callback(event);
+        self.callback.call(this, event);
     }
 
     var getDeltaY = function(event){
@@ -45,8 +50,24 @@ var WheelIndicator = (function() {
         getDeltaY(event);
     };
 
-    function processDelta(deltaY, self)  {
-        var stepAcceleration = 0, i;
+    function setPreventDefault(){
+        this.prevent = true;
+    }
+
+    function preventDefault(e){
+        if(window.event) {
+            window.event.returnValue = false;
+        } else if(e.preventDefault) {
+            e.preventDefault();
+        } else {
+            event.returnValue = false;
+        }
+    }
+
+    function processDelta(event, self) {
+        var stepAcceleration = 0,
+            deltaY = getDeltaY(event),
+            i;
 
         self.direction = deltaY > 0 ? self.direction = 'down' : self.direction = 'up';
         self.delta = Math.abs(deltaY);
@@ -61,7 +82,7 @@ var WheelIndicator = (function() {
         }, 200);
 
         if(self.isStopped) {
-            triggerEvent(self);
+            triggerEvent(self, event);
             self.isStopped = false;
             self.isAcceleration = true;
             stepAcceleration = 1;
@@ -69,6 +90,7 @@ var WheelIndicator = (function() {
             self.memoryAcceleration.shift();
             self.memoryAcceleration.push(stepAcceleration);
         } else {
+
             self.last5values.shift();
             self.last5values.push(self.delta);
 
@@ -92,7 +114,7 @@ var WheelIndicator = (function() {
                 //Произошло ускорение
                 if(!self.isAcceleration) {
                     self.isAcceleration = true;
-                    triggerEvent(self);
+                    triggerEvent(self, event);
                 }
             }
         }
