window mouse position to stage position

[pugliese]

Is there a way to convert window.clientX / window.clientY to PIXI stage?

I have this scenario:

container.touchmove = container.mousemove = function(data){    currentPlayer.drawTo(data.getLocalPosition(container).x, data.getLocalPosition(container).y);}

but I need to listen and input mouse coords from the whole window, as when the user is dragging outside the stage, it stops drawing. this is what I need:
 

$(window).on('mousemove', function(ev){    var point = windowPointToPIXI ???? getLocalPosition(container);        where point.x and point.y would be the same as the one from previous:    data.getLocalPosition(container)    Then I can call:    currentPlayer.drawTo(point.x, point.y);});