[ActionScript] AS3解决html与flash鼠标滚轮冲突的问题

<script type="text/javascript">
<!--
var winWidth = 0;
var winHeight = 0;
var scrHeight = 0;
function findDimensions() //函数：获取尺寸
{
//获取窗口宽度
if (window.innerWidth)
winWidth = window.innerWidth;
else if ((document.body) && (document.body.clientWidth))
winWidth = document.body.clientWidth;
//获取窗口高度
if (window.innerHeight)
winHeight = window.innerHeight;
else if ((document.body) && (document.body.clientHeight))
winHeight = document.body.clientHeight;

//通过深入Document内部对body进行检测，获取窗口大小
if (document.documentElement  && document.documentElement.clientHeight && document.documentElement.clientWidth)
{
winHeight = document.documentElement.clientHeight;//窗口的高度
winWidth = document.documentElement.clientWidth;

}

//scrHeight = document.documentElement.scrollTop;//滚去的高度
scrHeight = getScrollTop();//滚去的高度
sendToActionScript(winWidth+"_"+winHeight+"_"+scrHeight);//alert(winWidth+"_"+winHeight+"_"+scrHeight);
}
//findDimensions();                  //调用函数，获取数值
window.onresize=findDimensions;
window.onscroll=findDimensions;
//window.onload = findDimensions;
//setTimeout("sendToActionScript(winWidth+'_'+winHeight+'_'+scrHeight)",5000);
//setTimeout("findDimensions()",5000);
/**
* 获取滚动条距离顶端的距离
* @return {}支持IE6 火狐 谷歌浏览器
*/
function getScrollTop() {
var scrollPos;
if (window.pageYOffset) {
scrollPos = window.pageYOffset; }
else if (document.compatMode && document.compatMode != 'BackCompat')
{
scrollPos = document.documentElement.scrollTop;
}else if (document.body) {
scrollPos = document.body.scrollTop;
}
return scrollPos;
}
function thisMovie(movieName) {
if (navigator.appName.indexOf("Microsoft") != -1) {
return window[movieName];
} else {
return document[movieName];
}
}
function sendToActionScript(value) {
thisMovie("FlashAndHtmlWheelConflict").sendToActionScript(value);
}
function wheelToFlash(boolean){
if(boolean){
disabledMouseWheel();
}else{
window.onmousewheel = document.onmousewheel = findDimensions;
}
}

/**
* 禁用鼠标滚轮事件
* @return {}支持ie9、chrome、opera Firefox
*/
function disabledMouseWheel() {
if (document.addEventListener) {
document.addEventListener('DOMMouseScroll', scrollFunc, false);
}//W3C
window.onmousewheel = document.onmousewheel = scrollFunc;//IE/Opera/Chrome
}
function scrollFunc(evt) {
evt = evt || window.event;
if(evt.preventDefault) {
// Firefox
evt.preventDefault();
evt.stopPropagation();
} else {
// IE
evt.cancelBubble=true;
evt.returnValue = false;
}
return false;
}
//window.onload=disabledMouseWheel;
//-->
</script>

package
{
import flash.display.DisplayObjectContainer;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.external.ExternalInterface;
import flash.text.TextField;

/**
* @author Frost.Yen
* @E-mail 871979853@qq.com
* @create 2015-9-4 上午12:11:13
*
*/
[SWF(height="1000",width="800")]
public class FlashAndHtmlWheelConflict extends Sprite
{
private var _t:TextField;
private var _wheelH:Number = 0;
private var _htmlW:Number;
private var _htmlH:Number;
private var _scrollH:Number;

private var _sp1:Sprite;
private var _sp2:Sprite;
public function FlashAndHtmlWheelConflict()
{
init();
external();
}
private function init():void
{
_t = new TextField();
_t.autoSize = "left";
this.addChild(_t);
this.graphics.beginFill(0xff00ff,0.5);
this.graphics.drawRect(0,0,800,1000);
_sp1 = new Sprite();
_sp2 = new Sprite();
_sp1.graphics.beginFill(0x00ff00);
_sp1.graphics.drawRect(0,0,300,500);
_sp1.graphics.endFill();
this.addChild(_sp1);
_sp2.graphics.beginFill(0x00ff00);
_sp2.graphics.drawRect(0,0,300,500);
_sp2.graphics.endFill();
this.addChild(_sp2);_sp2.x = 400;
_sp1.addEventListener(MouseEvent.MOUSE_WHEEL,onMouseWheel1);
_sp2.addEventListener(MouseEvent.MOUSE_WHEEL,onMouseWheel2);
}
private function external():void
{
if (ExternalInterface.available)
{
try
{
ExternalInterface.addCallback("sendToActionScript", onResize);
}
catch(error:Error)
{
trace("Error: " + error);
}
catch(secError:SecurityError)
{
trace("Security error: " + secError);
}
}
else
{
trace("ExternalInterface is not available");
}
}
private function onResize(value:String):void
{
_htmlW = Number(value.split("_")[0]);
_htmlH = Number(value.split("_")[1]);
_scrollH = Number(value.split("_")[2]);
_t.text = "html窗口width:"+_htmlW+"--html窗口height"+_htmlH+"--html滚动height"+_scrollH+"--flash滚动height"+_wheelH;
_t.x = (stage.stageWidth - _t.width)*.5;
_t.y = (stage.stageHeight - _t.height)*.5;
}
private function onMouseWheel1(e:MouseEvent):void
{
_wheelH += e.delta; trace(e.delta,"e.delta");
_t.text = "html窗口width:"+_htmlW+"--html窗口height"+_htmlH+"--html滚动height"+_scrollH+"--flash滚动height"+_wheelH;
_t.x = (stage.stageWidth - _t.width)*.5;
_t.y = (stage.stageHeight - _t.height)*.5;
ExternalInterface.call("wheelToFlash",true);
}
private function onMouseWheel2(e:MouseEvent):void
{
ExternalInterface.call("wheelToFlash",false);
}
private function wheelToFlash(target:DisplayObjectContainer):void
{

}
}
}