鼠标脱动,IE和FF不兼容(页 1) - JavaScript论坛

zhangyao3287 发表于 2008-6-17 10:11

鼠标脱动,IE和FF不兼容

FF下报错 EventObject.setCapture is not a function

var EventObject = 0, Old_X, New_X;
function button_down(event){//拖动按钮按下事件
event = event ? event :(window.event ? window.event : null);
EventObject = event.srcElement ? event.srcElement : event.target;
Old_X = event.clientX;
EventObject.setCapture();
}
function button_move(event){//拖动按钮移动事件
if(EventObject){
      New_X = event.clientX;
try{
      var MovePels = EventObject.style.pixelLeft+New_X-Old_X;
      var MaxBound = document.getElementById(EventObject.id+"Box").offsetWidth-EventObject.offsetWidth;
}
      catch(e){}
      if(EventObject && MovePels <= MaxBound && MovePels >= 0){
         EventObject.style.pixelLeft += New_X-Old_X;
Old_X = New_X;
         }
      }
}
function button_up(){//拖动按钮松开事件
if(EventObject){
      EventObject.releaseCapture();
      EventObject = 0;
      }
}

zhangyao3287 发表于 2008-6-18 08:54

有人看没人回啊

zhangyao3287 发表于 2008-6-18 18:00

人还是要靠自己啊

var EventObject = 0, Old_X, New_X;
var isIE = /msie/i.test(navigator.userAgent);
var isFF = /firefox/i.test(navigator.userAgent);
function button_down(event){//拖动按钮按下事件
event = event ? event :(window.event ? window.event : null);
EventObject = event.srcElement ? event.srcElement : event.target;
Old_X = event.clientX;
document.onmousemove = button_move;
document.onmouseup = button_up;
if(isIE)EventObject.setCapture();
if(isFF)document.addEventListener("mousemove",button_move,true);
}
function button_move(event){//拖动按钮移动事件
event = event ? event :(window.event ? window.event : null);
if(EventObject){
      New_X = event.clientX;
try{
      var MovePels = parseInt(EventObject.style.left,10)+New_X-Old_X;
      var MaxBound = document.getElementById(EventObject.id+"Box").offsetWidth-EventObject.offsetWidth;
}
      catch(e){}
      if(EventObject && MovePels <= MaxBound && MovePels >= 0){
         EventObject.style.left = parseInt(EventObject.style.left,10) + New_X-Old_X + "px";
Old_X = New_X;
document.getElementById("writer").innerHTML = EventObject.id + ":" +parseInt(EventObject.style.left,10);
         }
      }
}
function button_up(){//拖动按钮松开事件
if(EventObject){
document.onmousemove = null;
document.onmouseup = null;
if(isIE)EventObject.releaseCapture();
if(isFF)document.removeEventListener("mousemove",button_move,true);
      EventObject = 0;
      }
}

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