首頁 > 開發者 > JavaScript
<html>
<head>
<title></title>
<script type="text/javascript">
var EventUtil = {
addHandler: function (element, type, handler) {
if (element.addEventListener) {
element.addEventListener(type, handler, false);
}
else if (element.attachEvent) {
element.attachEvent("on" + type, handler);
}
else {
element["on" + type] = handler;
}
},
getEvent: function (event) {
return event ? event : window.event;
},
getTarget: function (event) {
return event.target || event.scrElement;
},
preventDefault: function (event) {
if (event.preventDefault) {
event.preventDefault();
}
else {
event.returnValue = false;
}
},
removeHandler: function (element, type, handler) {
if (element.removeEventListener) {
element.removeEventListener(type, handler, false);
}
else if (element.detachEvent) {
element.detachEvent("on" + type, handler);
}
else {
element["on" + type] = null;
}
},
stopPropagation: function (event) {
if (event.stopPropagation) {
event.stopPropagation();
}
else {
event.cancelBubble = true;
}
}
};
EventUtil.addHandler(window, "load", function (event) {
var testdiv = document.getElementById("testdiv");
EventUtil.addHandler(testdiv, "contextmenu", function (event) {
event = EventUtil.getEvent(event);
EventUtil.preventDefault(event);
var menu = document.getElementById("myMenu");
menu.style.left = event.clientX + "px";
menu.style.top = event.clientY + "px";
menu.style.visibility = "visible";
});
EventUtil.addHandler(document, "click", function (event) {
document.getElementById("myMenu").style.visibility = "hidden";
});
});
</script>
</head>
<body>
<div id="testdiv" style=" width:500px; height:500px; background-color:#eee; ">div</div>
<div id="myMenu" style=" width:100px; height:100px; background-color:Red;position:absolute;">menu</div>
</body>
</html>
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