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js高级程序设计--事件模拟

2012-11-04 14:10 260 查看

var event,event1;
var btn=document.getElementById("myBtn");
btn.onclick=function(){
document.body.style.background="black";
}
if(client.browser.safari && client.browser.safari==2 ){
event=document.createEvent("UIEvent");
event.initEvent("click",true,true);
event.view=document.defaultView;
event.detail=0;
event.screenX=0;
event.screenY=0;
event.clientX=0;
event.clientY=0;
event.ctrlKey=false;
event.altkey=false;
event.metakey=false;
event.shiftKey=false;
event.button=0;
event.relatedTarget=null;
btn.dispatchEvent(event);
} else if(client.browser.ie){
event=document.createEventObject();
event.screenX=100;
event.screenY=0;
event.clientX=0;
event.clientY=0;
event.ctrlkey=false;
event.altkey=false;
event.shiftkey=false;
event.button=0;
btn.fireEvent("onclick",event);
} else {
//创建事件对象
event=document.createEvent("MouseEvents");
//初始化事件对象
event.initMouseEvent("click",true,true,document.defaultView,0,0,0,0,0,false,false,false,false,0,null);
//触发事件
btn.dispatchEvent(event);
}

//模拟键盘事件
var textbox=document.getElementById("myTextbox");
if(client.browser.firefox){
event1=document.createEvent("KeyEvents");
event1.initKeyEvent("keypress",true,true,document.defaultView,false,false,false,false,65,65);
textbox.dispatchEvent(event1);
} else if(client.browser.ie){
event1=document.createEventobject();
event1.altKey=false;
event1.ctrlKey=false;
event1.shiftKey=false;
event1.keyCode=65;
textbox.fireEvent("okeypress",event1);
} else {
//创建一个通用事件
event1=document.createEvent("Events");
event1.initEvent("keypress",true,true); //event1.initEvent(type,bubbles,cancelable);
event1.view=document.defaultView;
event1.altKey=false;
event1.ctrlKey=false;
event1.shiftKey=false;
event1.metaKey=false;
event1.keyCode=65;
event1.charCode=65;
textbox.dispatchEvent(event1);
}

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