javascript怎么模拟键盘按上
日期：2014-05-16 浏览次数：20422 次
javascript如何模拟键盘按下
需要写一个js方法：escKeyPress()。这个方法用于模拟按下键盘上的ESC键，我现在有一个模拟鼠标左键单击的js方法，
是从网上找的，但是本人太菜，搜了半天也弄不到模拟键盘点击的js方法，请求大虾帮忙！！
------解决方案--------------------
Hi,
我写了个例子，在IE6和Firefox3.5中已经测试过. 你要是想支持其他浏览器需要查相应的文档。
用法:
创建一个新HTML文件,copy下面的内容进去就可以了
--------------------------------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Simulate Event</title>
<script type="text/javascript">
function simulateKeyEvent(target,
keyCode)
{
if (!target){
alert("Target is not exist");
}
var customEvent = null;
var a = typeof document.createEvent;
if(typeof document.createEvent == "function")
{
try {
//firefox
customEvent = document.createEvent("KeyEvents");
customEvent.initKeyEvent("keypress", true, true,window, false,
false,false, false, keyCode, keyCode);
} catch (ex){
document.write("Shit happends. This example is only demonstrating event simulation in firefox and IE.");
}
target.dispatchEvent(customEvent);
} else if (document.createEventObject){ //IE
customEvent = document.createEventObject();
customEvent.bubbles = true;
customEvent.cancelable = true;
customEvent.view = window;
customEvent.ctrlKey = false;
customEvent.altKey = false;
customEvent.shiftKey = false;
customEvent.metaKey = false;
customEvent.keyCode = keyCode;
target.fireEvent("onkeypress", customEvent);
} else {
document.write("This example is only demonstrating event simulation in firefox and IE.");
}
}
</script>
</head>
<body>
<input id="testinput" type="button" value="kick you"/>
</body>
<script type="text/javascript">
var target =document.getElementById("testinput");
target.onkeypress = function(event){
var event = (event)?event:window.event;
if(event.keyCode == 27){
alert('"ESC" pressed');
}
};
simulateKeyEvent(target,27);
</script>
</html>
需要写一个js方法：escKeyPress()。这个方法用于模拟按下键盘上的ESC键，我现在有一个模拟鼠标左键单击的js方法，
- JScript code
function doClick(linkId){
var fireOnThis = document.getElementById(linkId);
if (document.createEvent)
{
var evObj = document.createEvent('MouseEvents');
evObj.initEvent( 'click', true, false );
fireOnThis.dispatchEvent(evObj);
}
else if (document.createEventObject)
{
fireOnThis.fireEvent('onclick');
}
}
是从网上找的，但是本人太菜，搜了半天也弄不到模拟键盘点击的js方法，请求大虾帮忙！！
------解决方案--------------------
Hi,
我写了个例子，在IE6和Firefox3.5中已经测试过. 你要是想支持其他浏览器需要查相应的文档。
用法:
创建一个新HTML文件,copy下面的内容进去就可以了
--------------------------------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Simulate Event</title>
<script type="text/javascript">
function simulateKeyEvent(target,
keyCode)
{
if (!target){
alert("Target is not exist");
}
var customEvent = null;
var a = typeof document.createEvent;
if(typeof document.createEvent == "function")
{
try {
//firefox
customEvent = document.createEvent("KeyEvents");
customEvent.initKeyEvent("keypress", true, true,window, false,
false,false, false, keyCode, keyCode);
} catch (ex){
document.write("Shit happends. This example is only demonstrating event simulation in firefox and IE.");
}
target.dispatchEvent(customEvent);
} else if (document.createEventObject){ //IE
customEvent = document.createEventObject();
customEvent.bubbles = true;
customEvent.cancelable = true;
customEvent.view = window;
customEvent.ctrlKey = false;
customEvent.altKey = false;
customEvent.shiftKey = false;
customEvent.metaKey = false;
customEvent.keyCode = keyCode;
target.fireEvent("onkeypress", customEvent);
} else {
document.write("This example is only demonstrating event simulation in firefox and IE.");
}
}
</script>
</head>
<body>
<input id="testinput" type="button" value="kick you"/>
</body>
<script type="text/javascript">
var target =document.getElementById("testinput");
target.onkeypress = function(event){
var event = (event)?event:window.event;
if(event.keyCode == 27){
alert('"ESC" pressed');
}
};
simulateKeyEvent(target,27);
</script>
</html>
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