Js: Mouse Coordinates Relative To An Element

Is it cross-browser to catch the mouse coordinates relative to a div box with this: pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById('thebox').offsetLeft;

Solution 1:

this works for me; change to your framework:

functionassignPosition(element,event) {
cX=event.clientX; cY=event.clientY;
if ($$(element).pageYOffset)
   {
   rX=$$(element).pageXOffset;
   rY=$$(element).pageYOffset;
   }
if (document.body)
   {
   rX=document.body.scrollLeft;
   rY=document.body.scrollTop;
   }
if (document.documentElement && document.documentElement.scrollTop)
   {
   rX=document.documentElement.scrollLeft;
   rY=document.documentElement.scrollTop;
   }
cX+=rX;
cY+=rY;
$$(element).style.left=cX+"px";
$$(element).style.top=cY+"px";
}

Solution 2:

In case you do not have all/most of the browser types/versions to test on, you might take a look at this: W3C DOM Compatibility - Events Linked from above: W3C DOM Compatibility - CSS Object Model View

Gives you an idea of how compatible the codes are.

Solution 3:

functiondodoubleclick(e){
             var mouseX, mouseY;

                if(e.offsetX) {
                    mouseX = e.offsetX;
                    mouseY = e.offsetY;
                }
                elseif(e.layerX) {
                    mouseX = e.layerX;
                    mouseY = e.layerY;
                }
alert("mousex:"+mouseX+"and"+"mousey:"+mouseY);

}

this snippet will gives you mouse coordinates