/*
***************************************************************************
* Copyright (C) 2007 by Cesar D. Rodas, Cristian Medeiros *
* {crodas,cmedieros}@phpy.org *
* *
* Permission is hereby granted, free of charge, to any person obtaining *
* a copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to *
* the following conditions: *
* *
* The above copyright notice and this permission notice shall be *
* included in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR *
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
* OTHER DEALINGS IN THE SOFTWARE. *
***************************************************************************
*/
var supportAjax=true; /* this browser suppor ajax? */
/**
* This function creates the event onclick that see if the browser support ajax,
* if support ask the page to server using ajax, on otherwise ask by normal way
*/
function JSaddor_OnLoadInit() {
var eList,i;
eList = document.getElementsByTagName("a");
for(i=0; i < eList.length; i++) {
eList[i].onclick = function (e) {
if (!supportAjax) return true; /* ajax is supported? not!, so quit of here*/
var ajaxUrl;
ajaxUrl = this.href;
var p = parseURL(ajaxUrl);
/**
* Suggested by Mgr. Jan Nemec,
*
* Provides a mechanism to avoid ajax query. This is done
* by ading rel="no-ajax" into the anchor tag.
*/
if ( this.rel) {
if (this.rel.indexOf('no-ajax') >= 0) return true;
}
var actual = parseURL(document.location.href);
/*
* The request link protocol is not the same than the actual page.
* So ask by regular way.
*/
if (p.protocol != actual.protocol) return true;
/*
* The request link is not a file, and the host is diferent from the the actual host
* so ask thought ajax is imposible. So ask by regular way.
*/
if ( p.protocol != "file" && p.host != actual.host) return true;
/* if ports are diferents, so do simple query*/
if (p.port != actual.port) return true;
/* do ajax query */
JSaddor_getPage( ajaxUrl );
return false;
};
}
}
/**
* Download Page using Ajax
*/
function JSaddor_getPage( url ) {
var success = function(t) {
/* try to parse the entry */
try {
elem = eval ( "(" + t.responseText +")");
JSaddor_DrawPage( elem );
JSaddor_OnLoadInit();
} catch(e) {
/* an error was happened, so do simple request by simple method */
JSaddor_DoNormalRequest( url );
}
}
var failure = function(t){
JSaddor_DoNormalRequest(url);
}
var myAjax = new Ajax.Request(url,
{
method:'post', onSuccess:success, onFailure:failure, parameters: "autoajaxvarname=Yes"
}
)
}
function JSaddor_DrawPage( obj ) {
try {
elem = document.getElementById( obj.destiny );
elem.innerHTML = obj.content;
} catch(e) {
throw "Error in DrawPage (" + e + ")";
}
eval( obj.before );
eval( obj.after );
}
/**
* Some times the Ajax request fails or the server doesn't answer
* as we expected (normaly when JSaddor is not installed on server side)
* so force to request that page in normal way.
*/
function JSaddor_DoNormalRequest(url) {
document.location.href = url;
}
function JSaddor_CleanString(str) {
str=str.replace(/\\n/g,"\n");
str=str.replace(/\\r/g,"\r");
return str;
}
/**
* This functions add an event to the actual window.
* Used for generate "on paged loaded" event and change the
* links for an Ajax query if is supported
*/
function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
if (oldonload)
oldonload();
func();
}
}
}
/**
* Parse URL
*
* Parse an URL and return and
* object with it parts.
*/
function parseURL(buffer) {
var result = { };
result.protocol = "";
result.user = "";
result.password = "";
result.host = "";
result.port = "";
result.path = "";
result.query = "";
var section = "PROTOCOL";
var start = 0;
var wasSlash = false;
while(start < buffer.length) {
if(section == "PROTOCOL") {
if(buffer.charAt(start) == ':') {
section = "AFTER_PROTOCOL";
start++;
} else if(buffer.charAt(start) == '/' && result.protocol.length() == 0) {
section = PATH;
} else {
result.protocol += buffer.charAt(start++);
}
} else if(section == "AFTER_PROTOCOL") {
if(buffer.charAt(start) == '/') {
if(!wasSlash) {
wasSlash = true;
} else {
wasSlash = false;
section = "USER";
}
start ++;
} else {
throw new ParseException("Protocol shell be separated with 2 slashes");
}
} else if(section == "USER") {
if(buffer.charAt(start) == '/') {
result.host = result.user;
result.user = "";
section = "PATH";
} else if(buffer.charAt(start) == '?') {
result.host = result.user;
result.user = "";
section = "QUERY";
start++;
} else if(buffer.charAt(start) == ':') {
section = "PASSWORD";
start++;
} else if(buffer.charAt(start) == '@') {
section = "HOST";
start++;
} else {
result.user += buffer.charAt(start++);
}
} else if(section == "PASSWORD") {
if(buffer.charAt(start) == '/') {
result.host = result.user;
result.port = result.password;
result.user = "";
result.password = "";
section = "PATH";
} else if(buffer.charAt(start) == '?') {
result.host = result.user;
result.port = result.password;
result.user = "";
result.password = "";
section = "QUERY";
start ++;
} else if(buffer.charAt(start) == '@') {
section = "HOST";
start++;
} else {
result.password += buffer.charAt(start++);
}
} else if(section == "HOST") {
if(buffer.charAt(start) == '/') {
section = "PATH";
} else if(buffer.charAt(start) == ':') {
section = "PORT";
start++;
} else if(buffer.charAt(start) == '?') {
section = "QUERY";
start++;
} else {
result.host += buffer.charAt(start++);
}
} else if(section == "PORT") {
if(buffer.charAt(start) = '/') {
section = "PATH";
} else if(buffer.charAt(start) == '?') {
section = "QUERY";
start++;
} else {
result.port += buffer.charAt(start++);
}
} else if(section == "PATH") {
if(buffer.charAt(start) == '?') {
section = "QUERY";
start ++;
} else {
result.path += buffer.charAt(start++);
}
} else if(section == "QUERY") {
result.query += buffer.charAt(start++);
}
}
if(section == "PROTOCOL") {
result.host = result.protocol;
result.protocol = "http";
} else if(section == "AFTER_PROTOCOL") {
throw new ParseException("Invalid url");
} else if(section == "USER") {
result.host = result.user;
result.user = "";
} else if(section == "PASSWORD") {
result.host = result.user;
result.port = result.password;
result.user = "";
result.password = "";
}
return result;
}
function ParseException(description) {
this.description = description;
}
/**
* Starting JSaddor
*/
addLoadEvent( JSaddor_OnLoadInit );
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