n2corelibs-utilities-54559.js

模拟amazon.com的窗口弹出效果,当鼠标移到图片上时弹出模拟的窗口

goN2Locale.getString = function(id, sFallback)
{
var oCfg = goN2U.getConfigurationObject('JSFStringTable');
var str;
if (id && oCfg)
{
str = oCfg.getValue(id);
}
if (!str)
{
;//goN2Debug.error('Untranslated string '+id+' ("'+sFallback+'") used (or string table not available)');
return sFallback;
}
return str;
}
goN2Locale.getStrings = function(idsAndFallbacks)
{
var oCfg = goN2U.getConfigurationObject('JSFStringTable');
var trans = {};
if (oCfg)
{
var str;
for (id in idsAndFallbacks)
{
str = oCfg.getValue(id);
if (str)
{
trans[id] = str;
}
else
{
;
trans[id] = idsAndFallbacks[id];
}
}
}
else
{
;
}
return trans;
}
goN2Locale.getImageURL = function(id, sFallback)
{
var oCfg = goN2U.getConfigurationObject('JSFImageURL');
if (oCfg)
{
if (oCfg.getValue(id))
{
return oCfg.getValue(id);
}
else if (goN2U.isDefined(sFallback))
{
var fullPathFallback = window.gsN2ImageHost + sFallback;
;
return fullPathFallback;
}
else
{
;
str = '';
}
}
else
{
;//goN2Debug.error("JSF image table not available)");
}
return str;
}
goN2Locale.getImageURLs = function(idsAndFallbacks)
{
var oCfg = goN2U.getConfigurationObject('JSFImageURL');
var trans = {};
if (oCfg)
{
var url;
for (id in idsAndFallbacks)
{
url = oCfg.getValue(id);
if (url)
{
trans[id] = url;
}
else
{
var fullPathFallback = window.gsN2ImageHost + idsAndFallbacks[id];
;//goN2Debug.error("Couldn't find image tag \"" + id + '"; falling back to ' + fullPathFallback + ')');
trans[id] = fullPathFallback;
}
}
}
else
{
;
}
return trans;
}
if (typeof(HTMLElement) != 'undefined')
{
HTMLElement.prototype.insertAdjacentHTML = function(sWhere, sHTML)
{
goN2U.insertAdjacentHTML(this, sWhere, sHTML);
}
}
window.N2TextSizer=function(spanID) {
var spanEl = document.createElement("span");
if (spanEl) {
spanEl.setAttribute("id",spanID, 0);
document.body.appendChild(spanEl);
goN2U.hide(spanID);
this.span=spanEl;   // expects goN2Utility class to have been initialized
this.sID = spanID;
this.style=null;
}
this.getStringWidth = function (txt, len) {
;
if (len) this.span.innerText = txt.substring(0, len);
else this.span.innerText = txt;
return goN2U.getElementWidth(this.sID);
}
this.setStyle = function (style) {
if (style != this.style) {
goN2U.setClass (this.span, style);
this.style = style;
}
}
this.truncateToWidth = function (txt, width) {
var len = txt.length;
var txtwidth = this.getStringWidth(txt);
if (txtwidth >width) {
var reqlen = Math.floor(width/txtwidth*len) - 3;
var temptxt = txt.substring(0, reqlen);
temptxt += '...';
return temptxt;
} else {
return txt;
}
}
this.setContent = function (cont) {
this.span.innerHTML=cont;
return goN2U.getElementWidth(this.span);
}
this.getWidth = function () {
return goN2U.getElementWidth(this.span);
}
this.getHeight = function () {
return goN2U.getElementHeight(this.span);
}
}
window.N2FifoQueue=function(n) {
var current = 0;
var next = 0;
var size = n ? n : 20;
var q = new Array(n);
this.add = function (item) {
q[next] = item;
next++;
if (next == size) next = 0;
q[next] = null;  // to ensure we don't have current go past
}
this.current = function () {
return q[current];
}
this.next = function () {
var val = null;
if (q[current]) current++;  // don't advance past stop fence
if (current == size) current = 0;
val = q[current];
return val;
}
this.nextExists = function () {
var val = null;
var temp = current;
if (q[temp]) temp++;   // don't advance past stop fence
if (temp == size) temp = 0;
return q[temp] != null;
}
this.toString = function () {
var txt = "Current: " + current + "\n";
txt += "Next: " + next + "\n";
for (i=0;i<size;i++) {
txt += "["+i+"] = " + q[i];
if (i == current) txt += " <-Current ";
if (i == next) txt += " <-Next";
txt +="\n";
}
return txt
}
}
window.N2BrowseStack=function(n) {
var current = -1;
var size = n ? n : 20;
var q = new Array(n);
this.add = function (item) {
current++;
q[current] = item;
q[current+1] = null;   // once we add a new item any past it are toast
}
this.reset = function () {
current = -1;
q[0] = null;
q[1] = null;
}
this.previous = function (item) {
if (current >0) return q[current-1];
return null;
}
this.current = function () {
return q[current];
}
this.next = function () {
return q[current+1];
}
this.goBack = function () { if (current >0) current--; }
this.goForward = function () { if (q[current+1]) current++; }
this.toString = function () {
var txt = "Current: " + current + "\n";
for (i=0;i<=current;i++) {
txt += "["+i+"] = " + q[i].id;
if (i == current) txt += " <-Current ";
txt +="\n";
}
return txt
}
}
window.N2LinkNameInfo=function(sLinkID, sNameOverride) {
if (sLinkID) {
var oLink = goN2U.getElement(sLinkID);
var sName = "";
if (oLink) {
sName = oLink.name;
;
}
if (sNameOverride) {
sName = sNameOverride;
;
}
if (sName) {
var tmpArray = sName.split("|");
if (tmpArray.length >1) {
this.sLinkID = sLinkID;
this.sName = sName;
this.sFeature  = tmpArray[0];
this.sType = tmpArray[1];
this.sID = tmpArray[2];
this.sParams = tmpArray[3];
for (var i = 4; !goN2U.isUndefined(tmpArray[i]); i++) {
this.sParams = this.sParams + "|" + tmpArray[i];
}
}
}
} else {
;
}
this.getLinkID  = function () { return this.sLinkID; }
this.getLinkName= function () { return this.sName; }
this.getFeature = function () { return this.sFeature; }
this.getType    = function () { return this.sType; }
this.getID      = function () { return this.sID; }
this.getParams  = function () { return this.sParams; }
}
var gaN2HandlerChains = new Array();
var gaN2HandlerRunFns = new Array();
window.N2ChainEventHandler=function(sHandlerName, fFn, sComment) {
sHandlerName = sHandlerName.toLowerCase();
sComment = sComment ? sComment : 'unknown';
;
;
if ( (typeof fFn != 'function') || fFn == null) return false;
var aChain;
if (!gaN2HandlerChains[sHandlerName]) {
aChain = gaN2HandlerChains[sHandlerName] = new Array();
} else {
aChain =  gaN2HandlerChains[sHandlerName];
}
var oE = window;
if (sHandlerName != 'onload' && sHandlerName != 'onresize' && sHandlerName != 'onerror') {
oE = document.getElementsByTagName("body")[0];
if (oE == null) {
;
return;
}
}
if  (oE[sHandlerName])  {
if (oE[sHandlerName] != gaN2HandlerRunFns[sHandlerName]) {
aChain[0] = oE[sHandlerName];
var fn = new Function ("evt", "evt = evt ? evt : window.event; _N2RunHandlers(evt, '"+sHandlerName+"');");
gaN2HandlerRunFns[sHandlerName] = fn;
oE[sHandlerName] = fn;
}
var len = aChain.length;
;
aChain[len] = fFn;
} else {
;
oE[sHandlerName] = fFn;
}
return true;
}
function _N2RunHandlers( evt, sHandlerName ) {
var aH = gaN2HandlerChains[sHandlerName];
var len = aH.length;
for (var i=0;i<len;i++) {
aH[i](evt);
}
}
N2ChainEventHandler('onload',
function(){
n2RunEvent('onload');
n2RunEvent(gbN2Loaded ? 'onloadsuccess' : 'onloaderror');
},
'run onload events' );
window.goN2Drag = {
obj : null,
normalizeEvent : function (evt) {
evt = (evt) ? evt : ((window.event) ? window.event : null);
if (evt) {
if(!evt.target) {
evt.target = evt.srcElement;
}
} else {
;
}
return evt;
},
mouseDown : function(evt) {
evt = goN2Drag.normalizeEvent(evt);
if (evt) {
var oE = goN2Drag.obj = evt.target;
if (oE._n2bDraggable) {
oE._n2SavedMouseMove = document.onmousemove;
oE._n2SavedMouseUp = document.onmouseup;
document.onmousemove = goN2Drag.mouseMove;
document.onmouseup = goN2Drag.mouseUp;
if (document.body && document.body.setCapture) {
document.body.setCapture();
;
}
var mouseDownX = (evt.clientX)? evt.clientX : evt.pageX;
var mouseDownY = (evt.clientY)? evt.clientY : evt.pageY;
oE.dragOffsetX = mouseDownX - ((oE.offsetLeft) ? oE.offsetLeft : oE.left);
oE.dragOffsetY = mouseDownY - ((oE.offsetTop) ? oE.offsetTop : oE.top);
oE.buttonIsDown = true;
if (oE._oN2 && oE._oN2.mouseDown) {
oE._oN2.onMouseDown(evt)
}
}
}
},
mouseMove : function(evt) {
evt = goN2Drag.normalizeEvent(evt);
if (evt) {
var oE = goN2Drag.obj;
if (oE.buttonIsDown) {
var nX = (evt.clientX)? evt.clientX : evt.pageX;
nX -= oE.dragOffsetX;
var nY = (evt.clientY)? evt.clientY : evt.pageY;
nY -= oE.dragOffsetY;
nX = Math.max(oE._n2nMinLeft, nX);
nX = Math.min(oE._n2nMaxLeft, nX);
nY = Math.max(oE._n2nMinTop, nY);
nY = Math.min(oE._n2nMaxTop, nY);
var bDoShift = true;
if (oE._oN2 && oE._oN2.onMoved) {
bDoShift = oE._oN2.onMoved(nX, nY);
}
if (bDoShift) {
goN2U.shiftTo(oE, nX, nY);
}
}
}
},
mouseUp : function(evt) {
;
evt = goN2Drag.normalizeEvent(evt);
if (evt) {
var oE = goN2Drag.obj;
if (oE.buttonIsDown) {
if (document.body && document.body.releaseCapture) {
document.body.releaseCapture();
;
}
oE.buttonIsDown = false;
if (oE._oN2 && oE._oN2.onMouseUp) {
oE._oN2.onMouseUp();
}
}
document.onmousemove = oE._n2SavedMouseMove;
document.onmouseup   = oE._n2SavedMouseUp;
}
},
makeDraggable : function (sID, nMinLeft, nMaxLeft, nMinTop, nMaxTop) {
var oE = goN2U.getElement(sID);
if (oE) {
oE["onmousedown"] = goN2Drag.mouseDown;
oE._n2bDraggable = true;
oE._n2nMinLeft = goN2U.isDefined(nMinLeft) ? nMinLeft : 0;
oE._n2nMaxLeft = goN2U.isDefined(nMaxLeft) ? nMaxLeft : 10000;
oE._n2nMinTop = goN2U.isDefined(nMinTop) ? nMinTop : 0;
oE._n2nMaxTop = goN2U.isDefined(nMaxTop) ? nMaxTop : 10000;
;
} else {
;
}
return oE;
}
}
var goN2U = new N2Utilities();
goN2U.initialize();
n2RunThisWhen('onload',
function() {
if (!document.body) {
alert("Error: Must initialize Utilities library in the body. (body not found)");
return;
}
var sID = goN2U.sAnimationDivID = 'goN2UAnimatedBox';
var o = document.createElement("div");
if (o) {
document.body.appendChild(o);
o.setAttribute("id",sID, 0);
goN2U.setClass(sID, 'animatedBox');
} else {
;
}
}, 'animate box creation' );
if (window.goN2LibMon) goN2LibMon.endLoad('utilities');