求救TW2平滑滚动插件问题
请高手能解释下里面关键位置的参数吗？比如说要想修改自动不用每次点击、默认平滑滚动更快些。该在那里修改
// Yet Another Smooth Scrolling for IE ver.1.0.1
// Copyright (c) 2008 kataho ( [email=kataho.mail@gmail.com]kataho.mail@gmail.com[/email] )
//
// ==UserScript==
// @name YetAnotherSmoothScrolling for IE
// @namespace [url=http://www.aa.alpha-net.ne.jp/kataho/xpi/yassie.html]http://www.aa.alpha-net.ne.jp/kataho/xpi/yassie.html[/url]
// @description Make scrolling comfortable smooth
// @include *
// ==/UserScript==
document.yass_samp =
{
init: function(_this)
{
/* >> Only here you need to edit for changing smooth animation in detail */
// Pixels scroll with one wheel tick
_this.m_pref.wheelstep = 100; // (0 - inf)
// Latency of rising of speed in beginning of a movement
var smooth_begin = 25.5; // (0.0 - 100.0)
// Latency of fading of speed in ending of a movement
var smooth_end = 58.4; // (0.0 - 100.0)
// Sensitivity for wheel spinning speed that makes wider scale-up to movement
_this.m_pref.wheelaccel = 217; // (0 - inf)
/* << */
_this.m_pref.wheeldumping = (900-(8.9*smooth_end))/1000;
_this.m_pref.wheelbdumping = (8.9*smooth_begin)/890;
},
m_pref: {},
m_sobj: null,
m_jumpto: 0,
m_wheelactive: false,
m_lastfunctime: 0,
m_lasteventtime: 0,
m_speed: 300,
range: function(t,min,max) { return (t<min)?min:((t>max)?max:t); },
handleEvent: function(ev)
{
var detail = -ev.wheelDelta;
_this = document.yass_samp;
var lastbody = (_this.m_sobj) ? _this.m_sobj.body : null;
_this.m_sobj = _this.findNodeToScroll(ev.srcElement,detail);
if(_this.m_sobj == null || _this.m_sobj.body != lastbody)
{
_this.m_wheelactive = false;
}
if(!_this.m_sobj) { return true; }
//alert(_this.m_sobj.log);
if(detail == 0) return false;
var ctm = (new Date()).getTime();
// branch for step
var step = _this.m_pref.wheelstep;
_this.m_speed = (_this.m_speed + Math.min(300,ctm - _this.m_lasteventtime)) / 2;
_this.m_lasteventtime = ctm;
if(!_this.m_wheelactive)
{
var delta = step * ((detail<0)?-1:1);
_this.m_sobj.body.scrollTop += (delta<0)?-1:1;
_this.m_jumpto = _this.m_sobj.body.scrollTop + delta;
_this.m_wheelactive = true;
_this.m_lastscrolltop = _this.m_sobj.body.scrollTop;
_this.m_lastfunctime = (new Date()).getTime() - 17;
_this.m_vpos = _this.m_sobj.body.scrollTop;
_this.m_lastd = 0;
_this.funcwheel(_this,ev.fromkeyboard,delta);
}
else
{
var accel = _this.m_pref.kbdaccel/100;
if(!ev.fromkeyboard)
{
var remain = _this.m_jumpto - _this.m_sobj.body.scrollTop;
if((remain * detail) < 0)
{
_this.m_jumpto = _this.m_sobj.body.scrollTop;
return false;
}
accel = _this.range(_this.m_pref.wheelaccel/_this.m_speed, 1.0, (400/step));
}
_this.m_jumpto += Math.round(step*((detail<0)?-1:1) * accel);
}
return false;
},
funcwheel: function(_this,kbd,idelta)
{
if(_this.m_wheelactive == false) return;
if(!_this.m_sobj) { _this.m_wheelactive = false; return; }
var tm = (new Date()).getTime();
var frametime = (tm - _this.m_lastfunctime);
var fframetime = frametime/17;
if(frametime == 0) { setTimeout("document.yass_samp.funcwheel(document.yass_samp,"+kbd+","+idelta+");",1); return; }
_this.m_lastfunctime = tm;
var f = kbd?_this.m_pref.kbddumping:_this.m_pref.wheeldumping;
var bdump = kbd?_this.m_pref.kbdbdumping:_this.m_pref.wheelbdumping;
if(bdump>0)
{
var timefromev = tm - _this.m_lasteventtime + 17;
var bd = 1.0;
bd = _this.range(timefromev/(bdump*2000) + ((_this.m_lastd!=0)?0.20:0.0), 0.05, 1.0);
_this.m_lastd = bd;
f *= bd;
}
f *= _this.range(fframetime,0.6,1.0);
if(fframetime > 1.0) f += (1.0-f) * f * Math.min((fframetime-1.0), 1.0);
var fordest = (_this.m_jumpto - _this.m_vpos);
var d = fordest * f;
var lenfordest = Math.abs(fordest);
if(lenfordest<=1 || (lenfordest<10 && d*d<0.4) || d*idelta<0 || _this.m_sobj.body.scrollTop != _this.m_lastscrolltop ) { _this.m_wheelactive = false; return; }
_this.m_vpos += d;
_this.m_sobj.body.scrollTop = _this.m_vpos;
if(_this.m_sobj.body.scrollTop == 0
|| _this.m_sobj.body.scrollTop == _this.m_sobj.maxscroll
) { _this.m_wheelactive = false; return; }
_this.m_lastscrolltop = _this.m_sobj.body.scrollTop;
setTimeout("document.yass_samp.funcwheel(document.yass_samp,"+kbd+","+idelta+");",1);
},
findNodeToScroll: function(orig,hint)
{
// vertically scrollable?
function getscrolltype(hscroll, hclient)
{
if(hclient < 50) return false;
if(hscroll <= hclient) return false;
return true;
}
var scrollovercheck =
(!hint)?
(function(){return true;}):(
(hint<0)?
(function(a,b){return (a>0);}):
(function(a,b){return (a<b)&&(b>1)/* <- magic code | there is an area unmovable really but looks like 1px scrollable */;})
);
var doc = orig.ownerDocument.documentElement;
if(doc && doc.nodeName.toLowerCase() != "html") { return null; }
var bodies = doc.getElementsByTagName("body");
if(!bodies || bodies.length == 0) { return null; }
var body = bodies[0];
var node = (orig == doc) ? body : orig;
var retobj =
{
originalTarget: orig
};
var log = "";
do{
log += node.nodeName + "("+node.clientHeight+")";
if(/option|optgroup/.test(node.nodeName.toLowerCase())) { return null; }
if(node.clientHeight && (node == doc || node == body))
{
var realheight = node.clientHeight;
log += "(" + node.scrollTop + " " + (node.scrollHeight-realheight) + ")";
if(getscrolltype(node.scrollHeight, realheight) && scrollovercheck(node.scrollTop,node.scrollHeight-realheight))
{
retobj.body = node;
retobj.height = realheight;
retobj.maxscroll = node.scrollHeight - node.clientHeight;
retobj.log = log;
return retobj;
}
}
if(node == doc) break;
log += "->";
node = node.parentNode;
}while(node);
try{
if(orig.ownerDocument.frames.frameElement)
return this.findNodeToScroll(orig.ownerDocument.frames.frameElement.ownerDocument.documentElement,hint);
}catch(e){}
// exception for ie spcecific weird page
if(doc.clientHeight == 0 && body.clientHeight > 0 && (doc.scrollHeight - body.clientHeight) > 0)
{
return null;
}
// no scrollable area found in content ( mainly for image only page to handle )
// return body
retobj.body = body;
retobj.height = body.clientHeight;
retobj.maxscroll = body.scrollHeight - body.clientHeight;
retobj.log = log + "default";
return retobj;
}
};
document.attachEvent("onmousewheel", document.yass_samp.handleEvent);
document.yass_samp.init(document.yass_samp); 好可爱，居然还有2个表情tw23yct [twfaceM018]这个插件本可以由高手完美弄出来的,可惜没人做,只能放弃了...... 我这个一滚滚太多了
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