Logic Issue A or C (C and B)

Question

ive got the following code for a drag and drop event:

if (event.getType().equals("mousedown")){
    isMouseDown = true;
}

if (event.getType().equals("mouseup")){
    isMouseDown = false;
}

if (event.getType().equals("mouseout")){
    isMouseDown = false;
}

if (event.getType().equals("mousemove")){
    if (isMouseDown)
        thisMove(event);    
}

how can i shorten this now with a better logic i tried

isMouseDown = event.getType().equals("mousedown") && !(event.getType().equals("mousemove") && isMouseDown);

if (event.getType().equals("mousemove") && isMouseDown)
    thisMove(event);

but its wrong...

Answer 1

You can change your code as follow:

   switch(event.getType()){
        case "mousedown":
            isMouseDown = true;
            break;
        case "mouseup":
        case "mouseout":
            isMouseDown=false;
            break;
        case "mousemove":
            if(isMouseDown)  thisMove(event);
            break;
        default:
            break;
    }