window.onmousemove在IE和Firefox中

Question

以下代码的目的是当用户按住SHIFT键时,某些文本将指示他们正在按下它.它在Firefox中运行良好,但IE不承认它.

window.onmousemove = function(e) {
        e = e || window.event;
        var copyLabel = document.getElementById("<%= lblCopyEnabled.ClientID %>");
        if (e.shiftKey) {
            copyLabel.style.display = "inline";
            ob_copyOnNodeDrop = true;
        }
        else {
            copyLabel.style.display = "none";
            ob_copyOnNodeDrop = false;
        }
    }

建议表示赞赏.

Answer 1

尽管MSDN文档说的是什么,onmousemove但在应用于window对象时不起作用.如果您将其应用于document对象,它应该适用于所有浏览器:

document.onmousemove = function(e) {
    e = e || window.event;
    var copyLabel = document.getElementById("<%= lblCopyEnabled.ClientID %>");
    if (e.shiftKey) {
        copyLabel.style.display = "inline";
        ob_copyOnNodeDrop = true;
    }
    else {
        copyLabel.style.display = "none";
        ob_copyOnNodeDrop = false;
    }
}

演示:http://jsfiddle.net/AndyE/aUxSz/