Block mouse scroll in Javascript

Question

I made a program using Polymer and within one of the components in a specific area (the caption area of my chart) I want the scroll of the page not to work, is there any way to do this?

Answer 1

You can hide the scroll when the mouse passes in a certain area, in my example I put to hide the overflow while passing the <div id="azul">.

var azul = document.getElementById("azul");

azul.onmouseover = function(){
   document.body.style.overflowY = "hidden";
};

azul.onmouseout = function(){
   document.body.style.overflowY = "auto";
};

#total{
  height: 900px;
}

#amarela{
  background-color: yellow;
  height:50%;
}

#azul{
  background-color: blue;
  height:50%;
}

<div id="total">
  <div id="amarela"></div>
  <div id="azul"></div>
</div>

Source: https://stackoverflow.com/questions/7915882/disabling-mouse-scrolling