zapatec.js

zapatec suite 最新版 20070204,非常棒的ajax widgets 工具包

if (arrScripts[iScript][1].length){
Zapatec.Transport.evalGlobalScope(arrScripts[iScript][1]);
}
var strAttrs = arrScripts[iScript][0];
strAttrs = strAttrs.replace(/\s+/g, ' ').replace(/^\s/, '')
.replace(/\s$/, '').replace(/ = /g, '=');
if (strAttrs.indexOf('src=') >= 0){
var objContainer = document.body;
if (!objContainer){
objContainer = document.getElementsByTagName('head')[0];
if (!objContainer){
objContainer = document;
}
}
var arrAttrs = strAttrs.split(' ');
var objScript = Zapatec.Utils.createElement('script');
for (var iAttr = 0; iAttr < arrAttrs.length; iAttr++){
var arrAttr = arrAttrs[iAttr].split('=');
if (arrAttr.length > 1){
objScript.setAttribute(arrAttr[0],
arrAttr[1].match(/^[\s|"|']*([\s|\S]*[^'|"])[\s|"|']*$/)[1]);
}
else{
objScript.setAttribute(arrAttr[0], arrAttr[0]);
}
}
objContainer.appendChild(objScript);
}
}
};
Zapatec.Transport.fetchXmlDoc = function(objArgs){
if (objArgs == null || typeof objArgs != 'object'){
return null;
}
if (!objArgs.url){
return null;
}
if (typeof objArgs.async == 'undefined'){
objArgs.async = true;
}
if (!objArgs.onLoad){
objArgs.onLoad = null;
}
if (!objArgs.onError){
objArgs.onError = null;
}
if (!objArgs.method && typeof objArgs.username == 'undefined' &&
typeof objArgs.password == 'undefined'){
if (document.implementation && document.implementation.createDocument){
var objDocument = null;
if (!objArgs.reliable){
objArgs.reliable = false;
}
var objFetchArgs ={
};
for (var strKey in objArgs){
objFetchArgs[strKey] = objArgs[strKey];
}
if (objArgs.async){
objFetchArgs.onLoad = function(objRequest){
objFetchArgs.onLoad = null;
var parser = new DOMParser();
objDocument = parser.parseFromString(objRequest.responseText, "text/xml");
Zapatec.Transport.removeBusy(objArgs);
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
};
}
else{
objFetchArgs.onLoad = null;
}
var objRequest = Zapatec.Transport.fetch(objFetchArgs);
if (!objArgs.async && objRequest){
var parser = new DOMParser();
objDocument = parser.parseFromString(objRequest.responseText, "text/xml");
Zapatec.Transport.removeBusy(objArgs);
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
return objDocument;
}
}
if (typeof ActiveXObject != 'undefined'){
Zapatec.Transport.showBusy(objArgs);
try{
var objDocument = new ActiveXObject(Zapatec.Transport.XMLDOM);
objDocument.async = objArgs.async;
if (objArgs.async){
objDocument.onreadystatechange = function (){
if (objDocument.readyState == 4){
Zapatec.Transport.removeBusy(objArgs);
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
objDocument.onreadystatechange ={
};
}
};
}
objDocument.load(objArgs.url);
if (!objArgs.async){
Zapatec.Transport.removeBusy(objArgs);
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
return objDocument;
}
return null;
}
catch (objException){
Zapatec.Transport.removeBusy(objArgs);
};
}
}
var objFetchArgs ={
};
for (var strKey in objArgs){
objFetchArgs[strKey] = objArgs[strKey];
}
if (objArgs.async){
objFetchArgs.onLoad = function(objRequest){
Zapatec.Transport.parseXml({
strXml: objRequest.responseText,
onLoad: objArgs.onLoad,
onError: objArgs.onError
}
);
};
}
else{
objFetchArgs.onLoad = null;
}
var objRequest = Zapatec.Transport.fetch(objFetchArgs);
if (!objArgs.async && objRequest){
return Zapatec.Transport.parseXml({
strXml: objRequest.responseText,
onLoad: objArgs.onLoad,
onError: objArgs.onError
}
);
}
return null;
};
Zapatec.Transport.parseXml = function(objArgs){
if (objArgs == null || typeof objArgs != 'object'){
return null;
}
if (!objArgs.strXml){
return null;
}
if (!objArgs.onLoad){
objArgs.onLoad = null;
}
if (!objArgs.onError){
objArgs.onError = null;
}
if (window.DOMParser){
try{
var objDocument = (new DOMParser()).parseFromString(objArgs.strXml,
'text/xml');
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
return objDocument;
}
catch (objException){
Zapatec.Transport.displayError(0,
"Error: Can't parse.\n" +
'String does not appear to be a valid XML fragment.',
objArgs.onError);
};
return null;
}
if (typeof ActiveXObject != 'undefined'){
try{
var objDocument = new ActiveXObject(Zapatec.Transport.XMLDOM);
objDocument.loadXML(objArgs.strXml);
Zapatec.Transport.onXmlDocLoad(objDocument, objArgs.onLoad,
objArgs.onError);
return objDocument;
}
catch (objException){
};
}
return null;
};
Zapatec.Transport.onXmlDocLoad = function(objDocument, onLoad, onError){
var strError = null;
if (objDocument.parseError){
strError = objDocument.parseError.reason;
if (objDocument.parseError.srcText){
strError += 'Location: ' + objDocument.parseError.url +
'\nLine number ' + objDocument.parseError.line + ', column ' +
objDocument.parseError.linepos + ':\n' +
objDocument.parseError.srcText + '\n';
}
}
else if (objDocument.documentElement &&
objDocument.documentElement.tagName == 'parsererror'){
strError = objDocument.documentElement.firstChild.data + '\n' +
objDocument.documentElement.firstChild.nextSibling.firstChild.data;
}
else if (!objDocument.documentElement){
strError = 'String does not appear to be a valid XML fragment.';
}
if (strError){
Zapatec.Transport.displayError(0,
"Error: Can't parse.\n" + strError,
onError);
}
else{
if (typeof onLoad == 'function'){
onLoad(objDocument);
}
}
};
Zapatec.Transport.serializeXmlDoc = function(objDocument){
if (window.XMLSerializer){
return (new XMLSerializer).serializeToString(objDocument);
}
if (objDocument.xml){
return objDocument.xml;
}
};
Zapatec.Transport.fetchJsonObj = function(objArgs){
if (objArgs == null || typeof objArgs != 'object'){
return null;
}
if (!objArgs.url){
return null;
}
if (typeof objArgs.async == 'undefined'){
objArgs.async = true;
}
if (!objArgs.reliable){
objArgs.reliable = false;
}
var objFetchArgs ={
};
for (var strKey in objArgs){
objFetchArgs[strKey] = objArgs[strKey];
}
if (objArgs.async){
objFetchArgs.onLoad = function(objRequest){
Zapatec.Transport.parseJson({
strJson: objRequest.responseText,
reliable: objArgs.reliable,
onLoad: objArgs.onLoad,
onError: objArgs.onError
}
);
};
}
else{
objFetchArgs.onLoad = null;
}
var objRequest = Zapatec.Transport.fetch(objFetchArgs);
if (!objArgs.async && objRequest){
return Zapatec.Transport.parseJson({
strJson: objRequest.responseText,
reliable: objArgs.reliable,
onLoad: objArgs.onLoad,
onError: objArgs.onError
}
);
}
return null;
};
Zapatec.Transport.parseJson = function(objArgs){
if (objArgs == null || typeof objArgs != 'object'){
return null;
}
if (!objArgs.reliable){
objArgs.reliable = false;
}
if (!objArgs.onLoad){
objArgs.onLoad = null;
}
if (!objArgs.onError){
objArgs.onError = null;
}
var objJson = null;
try{
if (objArgs.reliable){
if (objArgs.strJson){
objJson = eval('(' + objArgs.strJson + ')');
}
}
else{
objJson = Zapatec.Transport.parseJsonStr(objArgs.strJson);
}
}
catch (objException){
var strError =
"Error: Can't parse.\nString doesn't appear to be a valid JSON fragment: ";
strError += objException.message;
if (typeof objException.text != 'undefined' && objException.text.length){
strError += '\n' + objException.text;
}
strError += '\n' + objArgs.strJson;
Zapatec.Transport.displayError(0, strError, objArgs.onError);
};
if (typeof objArgs.onLoad == 'function'){
objArgs.onLoad(objJson);
}
return objJson;
};
Zapatec.Transport.parseJsonStr = function(text){
var p = /^\s*(([,:{}\[\]])|"(\\.|[^\x00-\x1f"\\])*"|-?\d+(\.\d*)?([eE][+-]?\d+)?|true|false|null)\s*/,
token,
operator;
function error(m, t){
throw{
name: 'JSONError',
message: m,
text: t || operator || token
};
}
function next(b){
if (b && b != operator){
error("Expected '" + b + "'");
}
if (text){
var t = p.exec(text);
if (t){
if (t[2]){
token = null;
operator = t[2];
}
else{
operator = null;
try{
token = eval(t[1]);
}
catch (e){
error("Bad token", t[1]);
}
}
text = text.substring(t[0].length);
}
else{
error("Unrecognized token", text);
}
}
else{
token = operator = null;
}
}
function val(){
var k, o;
switch (operator){
case '{':
next('{');
o ={
};
if (operator != '}'){
for (;;){
if (operator || typeof token != 'string'){
error("Missing key");
}
k = token;
next();
next(':');
o[k] = val();
if (operator != ','){
break;
}
next(',');
}
}
next('}');
return o;
case '[':
next('[');
o = [];
if (operator != ']'){
for (;;){
o.push(val());
if (operator != ','){
break;
}
next(',');
}
}
next(']');
return o;
default:
if (operator !== null){
error("Missing value");
}
k = token;
next();
return k;
}
}
next();
return val();
};
Zapatec.Transport.serializeJsonObj = function(v){
var a = [];
function e(s){
a[a.length] = s;
}
function g(x){
var c, i, l, v;
switch (typeof x){
case 'object':
if (x){
if (x instanceof Array){
e('[');
l = a.length;
for (i = 0; i < x.length; i += 1){
v = x[i];
if (typeof v != 'undefined' &&
typeof v != 'function'){
if (l < a.length){
e(',');
}
g(v);
}
}
e(']');
return;
}
else if (typeof x.toString != 'undefined'){
e('{');
l = a.length;
for (i in x){
v = x[i];
if (x.hasOwnProperty(i) &&
typeof v != 'undefined' &&
typeof v != 'function'){
if (l < a.length){
e(',');
}
g(i);
e(':');
g(v);
}
}
return e('}');
}
}
e('null');
return;
case 'number':
e(isFinite(x) ? +x : 'null');
return;
case 'string':
l = x.length;
e('"');
for (i = 0; i < l; i += 1){
c = x.charAt(i);
if (c >= ' '){
if (c == '\\' || c == '"') {
e('\\');
}
e(c);
}
else{
switch (c){
case '\b':
e('\\b');
break;
case '\f':
e('\\f');
break;
case '\n':
e('\\n');
break;
case '\r':
e('\\r');
break;
case '\t':
e('\\t');
break;
default:
c = c.charCodeAt();
e('\\u00' + Math.floor(c / 16).toString(16) +
(c % 16).toString(16));
}
}
}
e('"');
return;
case 'boolean':
e(String(x));
return;
default:
e('null');
return;
}
}
g(v);
return a.join('');
};
Zapatec.Transport.displayError = function(iErrCode, strError, onError){
if (typeof onError == 'function'){
onError({
errorCode: iErrCode,
errorDescription: strError
}
);
}
else{
alert(strError);
}
};
Zapatec.Transport.translateUrl = function(objArgs){
if (!objArgs || !objArgs.url){
return null;
}
var arrFullUrl = objArgs.url.split('?', 2);
var strUrl = arrFullUrl[0];
if (strUrl.charAt(0) == '/' || strUrl.indexOf(':') >= 0){
return objArgs.url;
}
var strRelativeTo;
if (typeof objArgs.relativeTo != 'string'){
strRelativeTo = document.location.toString().split('?', 2)[0];
}
else{
strRelativeTo = objArgs.relativeTo.split('?', 2)[0];
if (strRelativeTo.indexOf('/') < 0){
strRelativeTo = document.location.toString().split('?', 2)[0];
}
else if (strRelativeTo.charAt(0) != '/' &&
strRelativeTo.indexOf(':') < 0){
strRelativeTo = Zapatec.Transport.translateUrl({
url: strRelativeTo
}
);
}
}
var arrUrl = strUrl.split('/');
var arrRelativeTo = strRelativeTo.split('/');
arrRelativeTo.pop();
for (var iToken = 0; iToken < arrUrl.length; iToken++){
var strToken = arrUrl[iToken];
if (strToken == '..'){
arrRelativeTo.pop();
}
else if (strToken != '.'){
arrRelativeTo.push(strToken);
}
}
arrFullUrl[0] = arrRelativeTo.join('/');
return arrFullUrl.join('?');
};
Zapatec.Transport.loading ={
};
Zapatec.Transport.setupEvents = function(objArgs){
if (!objArgs){
return{