PDA

View Full Version : Dynamic Ajax Content - refresh



swade
07-18-2006, 10:37 PM
1) Script Title: Dynamic Ajax Content

2) Script URL (on DD): http://www.dynamicdrive.com/dynamicindex17/ajaxcontent.htm

3) Describe problem: Is there a way to keep the currently loaded source of containerid rather than the original source?

i.e., if I've just loaded ferrari.jpg and click the browser's Reload, is there a way to retain ferrari.jpg as contentarea's source instead of reloading the original text/src?

jscheuer1
07-19-2006, 05:47 AM
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Ajax Rotating Includes Script</title>
<script type="text/javascript">

/***********************************************
* Dynamic Ajax Content- Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
* Modified to reload most recent ajaxpage content on page reload in:
* http://www.dynamicdrive.com/forums by jscheuer1
***********************************************/

var loadedobjects=""
var rootdomain="http://"+window.location.hostname

function ajaxpage(url, containerid){
createCookie('ajaxloaded', url+','+containerid, 1)
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
page_request.open('GET', url, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}

//cookie unit from www.quirksmode.org

function createCookie(name,value,days)
{
if (days)
{
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++)
{
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}

function eraseCookie(name)
{
createCookie(name,"",-1);
}

//end cookie unit

onload=function() {
if (readCookie('ajaxloaded')!=null&&readCookie('ajaxloaded').indexOf('null')<0){
var args=unescape(readCookie('ajaxloaded')).split(',')
ajaxpage(args[0],args[1])
}
}


</script>

<style type="text/css">
#leftcolumn{
float:left;
width:150px;
height: 400px;
border: 3px solid black;
padding: 5px;
padding-left: 8px;

}

#leftcolumn a{
padding: 3px 1px;
display: block;
width: 100%;
text-decoration: none;
font-weight: bold;
border-bottom: 1px solid gray;
}

#leftcolumn a:hover{
background-color: #FFFF80;
}

#rightcolumn{
float:left;
width:550px;
min-height: 400px;
border: 3px solid black;
margin-left: 10px;
padding: 5px;
padding-bottom: 8px;
}

* html #rightcolumn{ /*IE only style*/
height: 400px;
}
</style>
</head>

<body>

<div id="leftcolumn">
<a href="javascript:ajaxpage('ajaxfiles/external.htm', 'rightcolumn');">Porsche Page</a>
<a href="javascript:ajaxpage('ajaxfiles/external2.htm', 'rightcolumn');">Ferrari Page</a>
<a href="javascript:ajaxpage('ajaxfiles/external3.htm', 'rightcolumn');">Aston Martin Page</a>

<div style="margin-top: 2em">Load CSS & JS files</div>
<a href="javascript:loadobjs('ajaxfiles/style.css', 'ajaxfiles/tooltip.js');">Load "style.css" and "tooltip.js"</a>

</div>

<div id="rightcolumn"><h3>Choose a page to load.</h3></div>
<div style="clear: left; margin-bottom: 1em"></div>

</body>

</html>

jscheuer1
07-19-2006, 07:47 AM
My above reply will work to refresh the ajax content. If you also want to refresh scripts and style loaded previously by loadobjs(), use this version:


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Ajax Rotating Includes Script</title>
<script type="text/javascript">

/***********************************************
* Dynamic Ajax Content- Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
* Modified to reload most recent ajaxpage content and loaded objects on page reload in:
* http://www.dynamicdrive.com/forums by jscheuer1
***********************************************/

var loadedobjects=""
var rootdomain="http://"+window.location.hostname

function ajaxpage(url, containerid){
createCookie('ajaxloaded', url+','+containerid, 1)
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
page_request.open('GET', url, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
createCookie('objsloaded', loadedobjects, 1)
}

//cookie unit from www.quirksmode.org

function createCookie(name,value,days)
{
if (days)
{
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++)
{
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}

function eraseCookie(name)
{
createCookie(name,"",-1);
}

//end cookie unit

onload=function() {
if (readCookie('ajaxloaded')!=null&&readCookie('ajaxloaded').indexOf('null')<0){
var args=unescape(readCookie('ajaxloaded')).split(',')
ajaxpage(args[0],args[1]);
}
if (readCookie('objsloaded')!=null&&readCookie('objsloaded').indexOf('null')<0){
args=unescape(readCookie('objsloaded')).split(' ')
for (var i_tem = 0; i_tem < args.length; i_tem++)
loadobjs(args[i_tem]);
}
}


</script>

<style type="text/css">
#leftcolumn{
float:left;
width:150px;
height: 400px;
border: 3px solid black;
padding: 5px;
padding-left: 8px;

}

#leftcolumn a{
padding: 3px 1px;
display: block;
width: 100%;
text-decoration: none;
font-weight: bold;
border-bottom: 1px solid gray;
}

#leftcolumn a:hover{
background-color: #FFFF80;
}

#rightcolumn{
float:left;
width:550px;
min-height: 400px;
border: 3px solid black;
margin-left: 10px;
padding: 5px;
padding-bottom: 8px;
}

* html #rightcolumn{ /*IE only style*/
height: 400px;
}
</style>
</head>

<body>

<div id="leftcolumn">
<a href="javascript:ajaxpage('ajaxfiles/external.htm', 'rightcolumn');">Porsche Page</a>
<a href="javascript:ajaxpage('ajaxfiles/external2.htm', 'rightcolumn');">Ferrari Page</a>
<a href="javascript:ajaxpage('ajaxfiles/external3.htm', 'rightcolumn');">Aston Martin Page</a>

<div style="margin-top: 2em">Load CSS & JS files</div>
<a href="javascript:loadobjs('ajaxfiles/style.css', 'ajaxfiles/tooltip.js');">Load "style.css" and "tooltip.js"</a>

</div>

<div id="rightcolumn"><h3>Choose a page to load.</h3></div>
<div style="clear: left; margin-bottom: 1em"></div>

</body>

</html>

Alt
01-10-2008, 09:58 PM
Hi, how can I setup that container div to auto-refresh in 60 sec. (kind of autoupdate when I change a content of each page).

Thanks in advance,
Alt