application.js

对进制转换详细的说明文档

return attribute?attribute.toString().slice(23,-2):null;
},
_flag:function(element,attribute){
return $(element).hasAttribute(attribute)?attribute:null;
},
style:function(element){
return element.style.cssText.toLowerCase();
},
title:function(element){
return element.title;
}
}
}
};
Element._attributeTranslations.write={
names:Object.extend({
cellpadding:'cellPadding',
cellspacing:'cellSpacing'
},Element._attributeTranslations.read.names),
values:{
checked:function(element,value){
element.checked=!!value;
},
style:function(element,value){
element.style.cssText=value?value:'';
}
}
};
Element._attributeTranslations.has={};
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex '+
'encType maxLength readOnly longDesc frameBorder').each(function(attr){
Element._attributeTranslations.write.names[attr.toLowerCase()]=attr;
Element._attributeTranslations.has[attr.toLowerCase()]=attr;
});
(function(v){
Object.extend(v,{
href:v._getAttr,
src:v._getAttr,
type:v._getAttr,
action:v._getAttrNode,
disabled:v._flag,
checked:v._flag,
readonly:v._flag,
multiple:v._flag,
onload:v._getEv,
onunload:v._getEv,
onclick:v._getEv,
ondblclick:v._getEv,
onmousedown:v._getEv,
onmouseup:v._getEv,
onmouseover:v._getEv,
onmousemove:v._getEv,
onmouseout:v._getEv,
onfocus:v._getEv,
onblur:v._getEv,
onkeypress:v._getEv,
onkeydown:v._getEv,
onkeyup:v._getEv,
onsubmit:v._getEv,
onreset:v._getEv,
onselect:v._getEv,
onchange:v._getEv
});
})(Element._attributeTranslations.read.values);
}
else if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){
Element.Methods.setOpacity=function(element,value){
element=$(element);
element.style.opacity=(value==1)?0.999999:
(value==='')?'':(value<0.00001)?0:value;
return element;
};
}
else if(Prototype.Browser.WebKit){
Element.Methods.setOpacity=function(element,value){
element=$(element);
element.style.opacity=(value==1||value==='')?'':
(value<0.00001)?0:value;
if(value==1)
if(element.tagName.toUpperCase()=='IMG'&&element.width){
element.width++;element.width--;
}else try{
var n=document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);
}catch(e){}
return element;
};
Element.Methods.cumulativeOffset=function(element){
var valueT=0,valueL=0;
do{
valueT+=element.offsetTop||0;
valueL+=element.offsetLeft||0;
if(element.offsetParent==document.body)
if(Element.getStyle(element,'position')=='absolute')break;
element=element.offsetParent;
}while(element);
return Element._returnOffset(valueL,valueT);
};
}
if(Prototype.Browser.IE||Prototype.Browser.Opera){
Element.Methods.update=function(element,content){
element=$(element);
if(content&&content.toElement)content=content.toElement();
if(Object.isElement(content))return element.update().insert(content);
content=Object.toHTML(content);
var tagName=element.tagName.toUpperCase();
if(tagName in Element._insertionTranslations.tags){
$A(element.childNodes).each(function(node){element.removeChild(node)});
Element._getContentFromAnonymousElement(tagName,content.stripScripts())
.each(function(node){element.appendChild(node)});
}
else element.innerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
if('outerHTML'in document.createElement('div')){
Element.Methods.replace=function(element,content){
element=$(element);
if(content&&content.toElement)content=content.toElement();
if(Object.isElement(content)){
element.parentNode.replaceChild(content,element);
return element;
}
content=Object.toHTML(content);
var parent=element.parentNode,tagName=parent.tagName.toUpperCase();
if(Element._insertionTranslations.tags[tagName]){
var nextSibling=element.next();
var fragments=Element._getContentFromAnonymousElement(tagName,content.stripScripts());
parent.removeChild(element);
if(nextSibling)
fragments.each(function(node){parent.insertBefore(node,nextSibling)});
else
fragments.each(function(node){parent.appendChild(node)});
}
else element.outerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
Element._returnOffset=function(l,t){
var result=[l,t];
result.left=l;
result.top=t;
return result;
};
Element._getContentFromAnonymousElement=function(tagName,html){
var div=new Element('div'),t=Element._insertionTranslations.tags[tagName];
if(t){
div.innerHTML=t[0]+html+t[1];
t[2].times(function(){div=div.firstChild});
}else div.innerHTML=html;
return $A(div.childNodes);
};
Element._insertionTranslations={
before:function(element,node){
element.parentNode.insertBefore(node,element);
},
top:function(element,node){
element.insertBefore(node,element.firstChild);
},
bottom:function(element,node){
element.appendChild(node);
},
after:function(element,node){
element.parentNode.insertBefore(node,element.nextSibling);
},
tags:{
TABLE:['<table>','</table>',1],
TBODY:['<table><tbody>','</tbody></table>',2],
TR:['<table><tbody><tr>','</tr></tbody></table>',3],
TD:['<table><tbody><tr><td>','</td></tr></tbody></table>',4],
SELECT:['<select>','</select>',1]
}
};
(function(){
Object.extend(this.tags,{
THEAD:this.tags.TBODY,
TFOOT:this.tags.TBODY,
TH:this.tags.TD
});
}).call(Element._insertionTranslations);
Element.Methods.Simulated={
hasAttribute:function(element,attribute){
attribute=Element._attributeTranslations.has[attribute]||attribute;
var node=$(element).getAttributeNode(attribute);
return!!(node&&node.specified);
}
};
Element.Methods.ByTag={};
Object.extend(Element,Element.Methods);
if(!Prototype.BrowserFeatures.ElementExtensions&&
document.createElement('div')['__proto__']){
window.HTMLElement={};
window.HTMLElement.prototype=document.createElement('div')['__proto__'];
Prototype.BrowserFeatures.ElementExtensions=true;
}
Element.extend=(function(){
if(Prototype.BrowserFeatures.SpecificElementExtensions)
return Prototype.K;
var Methods={},ByTag=Element.Methods.ByTag;
var extend=Object.extend(function(element){
if(!element||element._extendedByPrototype||
element.nodeType!=1||element==window)return element;
var methods=Object.clone(Methods),
tagName=element.tagName.toUpperCase(),property,value;
if(ByTag[tagName])Object.extend(methods,ByTag[tagName]);
for(property in methods){
value=methods[property];
if(Object.isFunction(value)&&!(property in element))
element[property]=value.methodize();
}
element._extendedByPrototype=Prototype.emptyFunction;
return element;
},{
refresh:function(){
if(!Prototype.BrowserFeatures.ElementExtensions){
Object.extend(Methods,Element.Methods);
Object.extend(Methods,Element.Methods.Simulated);
}
}
});
extend.refresh();
return extend;
})();
Element.hasAttribute=function(element,attribute){
if(element.hasAttribute)return element.hasAttribute(attribute);
return Element.Methods.Simulated.hasAttribute(element,attribute);
};
Element.addMethods=function(methods){
var F=Prototype.BrowserFeatures,T=Element.Methods.ByTag;
if(!methods){
Object.extend(Form,Form.Methods);
Object.extend(Form.Element,Form.Element.Methods);
Object.extend(Element.Methods.ByTag,{
"FORM":Object.clone(Form.Methods),
"INPUT":Object.clone(Form.Element.Methods),
"SELECT":Object.clone(Form.Element.Methods),
"TEXTAREA":Object.clone(Form.Element.Methods)
});
}
if(arguments.length==2){
var tagName=methods;
methods=arguments[1];
}
if(!tagName)Object.extend(Element.Methods,methods||{});
else{
if(Object.isArray(tagName))tagName.each(extend);
else extend(tagName);
}
function extend(tagName){
tagName=tagName.toUpperCase();
if(!Element.Methods.ByTag[tagName])
Element.Methods.ByTag[tagName]={};
Object.extend(Element.Methods.ByTag[tagName],methods);
}
function copy(methods,destination,onlyIfAbsent){
onlyIfAbsent=onlyIfAbsent||false;
for(var property in methods){
var value=methods[property];
if(!Object.isFunction(value))continue;
if(!onlyIfAbsent||!(property in destination))
destination[property]=value.methodize();
}
}
function findDOMClass(tagName){
var klass;
var trans={
"OPTGROUP":"OptGroup","TEXTAREA":"TextArea","P":"Paragraph",
"FIELDSET":"FieldSet","UL":"UList","OL":"OList","DL":"DList",
"DIR":"Directory","H1":"Heading","H2":"Heading","H3":"Heading",
"H4":"Heading","H5":"Heading","H6":"Heading","Q":"Quote",
"INS":"Mod","DEL":"Mod","A":"Anchor","IMG":"Image","CAPTION":
"TableCaption","COL":"TableCol","COLGROUP":"TableCol","THEAD":
"TableSection","TFOOT":"TableSection","TBODY":"TableSection","TR":
"TableRow","TH":"TableCell","TD":"TableCell","FRAMESET":
"FrameSet","IFRAME":"IFrame"
};
if(trans[tagName])klass='HTML'+trans[tagName]+'Element';
if(window[klass])return window[klass];
klass='HTML'+tagName+'Element';
if(window[klass])return window[klass];
klass='HTML'+tagName.capitalize()+'Element';
if(window[klass])return window[klass];
window[klass]={};
window[klass].prototype=document.createElement(tagName)['__proto__'];
return window[klass];
}
if(F.ElementExtensions){
copy(Element.Methods,HTMLElement.prototype);
copy(Element.Methods.Simulated,HTMLElement.prototype,true);
}
if(F.SpecificElementExtensions){
for(var tag in Element.Methods.ByTag){
var klass=findDOMClass(tag);
if(Object.isUndefined(klass))continue;
copy(T[tag],klass.prototype);
}
}
Object.extend(Element,Element.Methods);
delete Element.ByTag;
if(Element.extend.refresh)Element.extend.refresh();
Element.cache={};
};
document.viewport={
getDimensions:function(){
var dimensions={},B=Prototype.Browser;
$w('width height').each(function(d){
var D=d.capitalize();
if(B.WebKit&&!document.evaluate){
dimensions[d]=self['inner'+D];
}else if(B.Opera&&parseFloat(window.opera.version())<9.5){
dimensions[d]=document.body['client'+D]
}else{
dimensions[d]=document.documentElement['client'+D];
}
});
return dimensions;
},
getWidth:function(){
return this.getDimensions().width;
},
getHeight:function(){
return this.getDimensions().height;
},
getScrollOffsets:function(){
return Element._returnOffset(
window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft,
window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop);
}
};
var Selector=Class.create({
initialize:function(expression){
this.expression=expression.strip();
if(this.shouldUseSelectorsAPI()){
this.mode='selectorsAPI';
}else if(this.shouldUseXPath()){
this.mode='xpath';
this.compileXPathMatcher();
}else{
this.mode="normal";
this.compileMatcher();
}
},
shouldUseXPath:function(){
if(!Prototype.BrowserFeatures.XPath)return false;
var e=this.expression;
if(Prototype.Browser.WebKit&&
(e.include("-of-type")||e.include(":empty")))
return false;
if((/(\[[\w-]*?:|:checked)/).test(e))
return false;
return true;
},
shouldUseSelectorsAPI:function(){
if(!Prototype.BrowserFeatures.SelectorsAPI)return false;
if(!Selector._div)Selector._div=new Element('div');
try{
Selector._div.querySelector(this.expression);
}catch(e){
return false;
}
return true;
},
compileMatcher:function(){
var e=this.expression,ps=Selector.patterns,h=Selector.handlers,
c=Selector.criteria,le,p,m;
if(Selector._cache[e]){
this.matcher=Selector._cache[e];
return;
}
this.matcher=["this.matcher = function(root) {",
"var r = root, h = Selector.handlers, c = false, n;"];
while(e&&le!=e&&(/\S/).test(e)){
le=e;
for(var i in ps){
p=ps[i];
if(m=e.match(p)){
this.matcher.push(Object.isFunction(c[i])?c[i](m):
new Template(c[i]).evaluate(m));
e=e.replace(m[0],'');
break;
}
}
}
this.matcher.push("return h.unique(n);\n}");
eval(this.matcher.join('\n'));
Selector._cache[this.expression]=this.matcher;
},
compileXPathMatcher:function(){
var e=this.expression,ps=Selector.patterns,
x=Selector.xpath,le,m;
if(Selector._cache[e]){
this.xpath=Selector._cache[e];return;
}
this.matcher=['.//*'];
while(e&&le!=e&&(/\S/).test(e)){
le=e;
for(var i in ps){
if(m=e.match(ps[i])){
this.matcher.push(Object.isFunction(x[i])?x[i](m):
new Template(x[i]).evaluate(m));
e=e.replace(m[0],'');
break;
}
}
}
this.xpath=this.matcher.join('');
Selector._cache[this.expression]=this.xpath;
},
findElements:function(root){
root=root||document;
var e=this.expression,results;
switch(this.mode){
case'selectorsAPI':
if(root!==document){
var oldId=root.id,id=$(root).identify();
e="#"+id+" "+e;
}
results=$A(root.querySelectorAll(e)).map(Element.extend);
root.id=oldId;
return results;
case'xpath':
return document._getElementsByXPath(this.xpath,root);
default:
return this.matcher(root);
}
},
match:function(element){
this.tokens=[];
var e=this.expression,ps=Selector.patterns,as=Selector.assertions;
var le,p,m;
while(e&&le!==e&&(/\S/).test(e)){
le=e;
for(var i in ps){
p=ps[i];
if(m=e.match(p)){
if(as[i]){
this.tokens.push([i,Object.clone(m)]);
e=e.replace(m[0],'');
}else{
return this.findElements(document).include(element);
}
}
}
}
var match=true,name,matches;
for(var i=0,token;token=this.tokens[i];i++){
name=token[0],matches=token[1];
if(!Selector.assertions[name](element,matches)){
match=false;break;
}
}
return match;
},
toString:function(){
return this.expression;
},
inspect:function(){
return"#<Selector:"+this.expression.inspect()+">";
}
});
Object.extend(Selector,{
_cache:{},
xpath:{
descendant:"//*",
child:"/*",
adjacent:"/following-sibling::*[1]",
laterSibling:'/following-sibling::*',
tagName:function(m){
if(m[1]=='*')return'';
return"[local-name()='"+m[1].toLowerCase()+
"' or local-name()='"