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CrossBrowserEventUtil.html
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CrossBrowserEventUtil.html
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<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<input type="button" name="" value="button" id="myBtn">
<br>
<input type="button" name="" value="button" id="myBtn">
<br>
<input type="button" name="" value="button" id="myBtn">
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<input type="button" name="" value="button" id="myBtn">
<br>
<br>
<input type="button" name="" value="button3" id="myBtn3">
<br>
<br>
<input type="button" name="" value="myBtn2" id="myBtn2">
<br>
<br>
<input type="button" name="" value="myBtn1" id="myBtn1">
<br>
<br>
<input type="text" name="" id="myInputText">
<input type="text" name="" id="myInputText1">
<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;
}
},
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;
}
},
getEvent: function(event) {
return event ? event : window.event;
},
getTarget: function(event) {
return event.target || event.srcElement;
},
getRelatedTarget: function(event) {
if (event.relatedTarget) {
return event.relatedTarget;
}else if (event.toElement) {
return event.toElement;
}else if (event.fromElement) {
return event.fromElement;
}else {
return null;
}
},
getButton: function(event) {
if (document.implementation.hasFeature("MouseEvents", "2.0")) {
return event.button;
}else {
switch (event.button) {
case 0:
case 1:
case 3:
case 5:
case 7:
return 0;
case 2:
case 6:
return 2;
case 4:
return 1;
}
}
},
getCharCode: function(event) {
if (typeof event.charCode == "number") {
return event.charCode;
}else {
return event.keyCode;
}
},
preventDefault: function(event) {
if (event.preventDefault) {
event.preventDefault();
}else {
event.returnValue = false;
}
},
stopProgagation: function(event) {
if (event.stopProgagation) {
event.stopProgagation();
}else {
event.cancelBubble = true;
}
}
};
/// Coordinates
var btn = document.getElementById("myBtn1");
EventUtil.addHandler(btn, "click", function(event) {
event = EventUtil.getEvent(event);
alert("Client coordinates: " + event.clientX + "," + event.clientY + "\n"
+ "Page coordinates: " + event.pageX + "," + event.pageY + "\n"
+ "Screen coordinates: " + event.screenX + "," + event.screenY);
});
/// Related target
var myBtn2 = document.getElementById("myBtn2");
EventUtil.addHandler(myBtn2, "mouseout", function(event) {
event = EventUtil.getEvent(event);
var target = EventUtil.getTarget(event);
var relatedTarget = EventUtil.getRelatedTarget(event);
alert("mouseout: " + "\n" + "from target: " + target.tagName + "to relatedTarget: " + relatedTarget.tagName);
});
/// Button
var mybtn3 = document.getElementById("myBtn3");
EventUtil.addHandler(mybtn3, "mousedown", function(event) {
event = EventUtil.getEvent(event);
alert(EventUtil.getButton(event));
});
/// Key code
var myInputText = document.getElementById("myInputText");
EventUtil.addHandler(myInputText, "keypress", function(event) {
event = EventUtil.getEvent(event);
var identifier = event.key || event.keyIdentifier;
alert(EventUtil.getCharCode(event) + ":" + identifier);
});
/// textInput event
var myInputText1 = document.getElementById("myInputText1");
EventUtil.addHandler(myInputText1, "textInput", function(event) {
event = EventUtil.getEvent(event);
alert(event.data);
});
</script>
</body>
</html>