function dropCandidate()

in pysteve/www/htdocs/js/steve_stv.js [246:284]

• 35 lines of code
• 14 McCabe index (conditional complexity)

function dropCandidate(ev) {
    if (ev.preventDefault) ev.preventDefault();
    if (ballotNames.length >= maxnum) {
        return; // MNTV lockout
    }
    source = ev.dataTransfer ? ev.dataTransfer.getData("Text") : tb;
    source = source ? source : tb
    dest = ev.target.getAttribute("data")
    dest = dest ? dest : "LOWER"
    if (dest == source) { // touch fixes
        dest = "LOWER"
    }
    var z = 0;
    if (dest == "UPPER") { dest = ballotNames[0]; z = 0}
    if (dest == "LOWER") { dest = ballotNames[ballotNames.length -1]; z = 1;}
    if (dest && candidates.indexOf(dest) != -1) {
        return;
    }
    if (ballotNames.indexOf(source) == -1 && candidates.indexOf(source) != -1) {
        var x = ballotNames.indexOf(dest)
        x += z
        if (ballotNames.indexOf(dest) != -1) {
            ballotNames.splice(x,0,source);
            ballotChars.splice(x,0,chars[candidates.indexOf(source)]);
        } else {
            ballotNames.push(source)
            ballotChars.push(chars[candidates.indexOf(source)])
        }
        chars.splice(candidates.indexOf(source), 1)
        candidates.splice(candidates.indexOf(source), 1)
        
        fadeIn(0, "ballot", Math.random())
        //ev.preventDefault()
        drawCandidates();
        drawList();
        
    }
    
}