Develop Reference

show loading image before the content loads through jquery or ajax

Hello mates just stuck with a problem.
i am using click() and load() function to get my content in a css class
$("#feed").click(function(){
$(".homefeed").load("feedcontainer.php");
$("#elementcontainer").show();
});
$("#news").click(function(){
$(".homefeed").load("n.php");
$("#elementcontainer").show();
});
$("#info").click(function(){
$(".homefeed").load("newinfo.php");
$("#elementcontainer").hide();
});
As you can see when i click a div then i am able to load a php file content in a .homefeed class container and it is working perfectly
all i want to show a loading image..like loading....loading..... before the content loads..
because when i click one of those div then it is loaded into homefeed container perfectly but it is taking some time so i just want to show user some loading image to keep them engaged
any guess how to achieve it now?
thank you.

Try this: $(".homefeed").prepend(response); change to $(".homefeed").html(response)
$("#info").click(function (e) {
$("#loadimg").show();
jQuery.ajax({
type: "POST",
url: "newinfo.php",
dataType:"text",
cache: true,
success:function(response){
$(".homefeed").html(response);
$("#loadimg").hide();
},
});
});

You can use jquery blockUI plugin. jquery blockUI

Use the .beforeSend option in the jQuery AJAX call. Note, that this only works if your AJAX call is asynchronous. If you call it using synchronous, it won't do any animations/queries/callbacks (as jQ is busy blocking everything until your call comes back).
$.ajax({
url: "http://myurl.dot.com.jpeg.image.file.chmtl.php.asp.cfm",
async:false,
cache: false,
beforeSend: function( xhr ) {
// do stuff here to do the 'loading' animation
// (show a dialog, reveal a spinner, etc)
},
done: function(data){
//process response here
}
})
http://api.jquery.com/jquery.ajax/

Is it possible to update jquery tab set

I have a jquery tab set:
<div id="tabs">
<ul>
<li>Mileage Log</li>
<li>Trips</li>
</ul>
<div id="tabs-1">something</div>
<div-id="tabs-2">something</div>
</div>
My content on my tabs fires some javascript code that posts form data (I included that code). The problem is that I would like the tab element to refresh so any new content can be shown. Is there a built-in way to refresh the tabs using the "success:" option. I am currently using "location.reload();" but it just refreshes the whole page. Not ideal.
Thanks.
My Javascript
<script>
$(document).ready(function () {
//Submit form to add record.
$('#addmileage').submit(function (e)
{
e.preventDefault();
$.ajax({
data: $('#addmileage').serialize(),
type:'POST',
url:'actionpages/add_trip.cfm?ticketid=<cfoutput>#url.ticketid#</cfoutput>',
success: function(){
$('.success').fadeIn(200).show();
location.reload();
$('.error').fadeOut(200).hide();
}
});
});
$('.deleteMileageForm').submit(function (e)
{
e.preventDefault();
$.ajax({
data: $(this).serialize(), // **** modified this line ****
type:'POST',
url:'actionpages/delete_trip.cfm',
success: function () {
$('.successTab2').fadeIn(200).show();
location.reload();
$('.errorTab2', $row).fadeOut(200).hide();
}
});
});
});
</script>

The only way I think you could achieve this, is to have the server-side functions you're calling in AJAX, return a block of HTML which you could inject into the of the tab you want to reload. And if you're going to do that, you'll need to put the functions in a CFC instead of the CFM page you're calling now.
So, you would generate the way you're doing now to build the initial page, but save the generated HTML as a string and then return it to the jQuery AJAX call.
As just a really bare-bones example:
$('.deleteMileageForm').submit(function (e)
{
e.preventDefault();
$.ajax({
data: $(this).serialize(), // **** modified this line ****
type:'post',
dataType: 'json',
url:'actionpages/actions.cfc?method=deleteTrip&returnformat=json',
success: function (result) {
$('.successTab2').fadeIn(200).show();
$('.errorTab2', $row).fadeOut(200).hide();
$('#tab2').html(result);
}
});
Then on the server you'll need an actions.cfc with remotely accessible functions:
<component>
<cffunction name="deleteTrip" access="remote">
<cfset newHTML = "<h1>This is new HTML!</h1>">
<cfreturn newHTML>
</cffunction>
</component>
I've put everything into JSON format, just because I always use JSON. :)
Not sure how familiar you are with CFCs, returnformats, etc. But hopefully this is a push in the right direction.

You need to refresh the tabs in the success function using DOM Manipulation. It may be the case, that your scripts like actionpages/delete_trip.cfm have to return new information which you need to refresh the tabs (for example in the JSON format).
Some notes:
The function location.reload(); may reload the page from the browser cache. Use location.reload(true); if you do not want this behavior.
$('.successTab2').fadeIn(200) should be enough (.show() is not needed). You also do not need the .hide() function.

jQuery click event interrupts setInterval

I'm creating script where I use AJAX from jQuery. I've got a problem, as on my website I've got hidden object. Moreover I use setInterval to frequently refresh a piece of my script. Everything works well, but until I click on link to set this hidden object to be visible. When I click on link and make object visible, setInterval stops refreshing page. This is my code to AJAX:
$(document).ready(setInterval(function() {
$.ajax({
type: "POST",
url: "score.php",
success: function(html){
$("#loadplace").hide().show().html(html);
}
});
return false;}, 60000));
and this is code for link:
$('div#bar a#squad1').click(function(e) {
e.preventDefault();
$('div#s1 table.events1').hide();
$('div#s1 table.index_players1').fadeIn();
});
$('div#bar a#events1').click(function(e) {
e.preventDefault();
$('div#s1 table.index_players1').hide();
$('div#s1 table.events1').fadeIn();
});
is there any solution in jQuery for my problem ?
P.S. I hope you understand what I wrote, I know that my English is not so good as I wish it to be.

How to open an html page in and html div?

The question might be a little misleading as I don't want to know how to open a html document in a div ,but I asked the question as I am currently facing a problem where I can't replace the html file which I have already placed in a div
I have already placed a html file in a div using ajax like this:
$.ajax({
url: 'calender.aspx',//this is html.aspx file
cache: false,
dataType: "html",
success: function (data) {
$(".mainBar").html(data);//mainBar is the div
}
});
this file gets placed on page load i.e document.ready function ,till here everything is fine.....my trouble starts when I want to replace the file,what I do is call a javascript function say replaceFile() on button click and write the same code to replace the file (changing the url of course)
like this
function replaceFile()
{
$.ajax({
url: 'Another.aspx',
cache: false,
dataType: "html",
success: function (data) {
$(".mainBar").html(data);
}
});
}
but this doesn't work,please help me out!

I guess your binding is not working when you try to click on the content you loaded via ajax . So you might want to change the binding of onclick from
$("#someButtonId").click(function(){
replaceFile();
});
to
$(document).on("click","#someButtonId",function(){
replaceFile();
});
jQuery on works with current and future elements.

with this function you will load the page into the element named result
.load( url , data, complete(responseText, textStatus, XMLHttpRequest)] )
function replaceFile(url)
{
$('#result').load(url, function() {
alert('Load was performed.');
});
}
replaceFile('htmlfile.html');

You can load this in Firebug and set a break point at $(".mainBar").html(data); to make sure it's being called. You don't have a failure handler, so it's possible that it's actually receiving an HTTP failure code, not a success code.
I'd also look at the network traffic under the Net tab to see what the request/response looks like. That's an easy way to find out what is really going on with most AJAX calls. IE9 has similar developer tools if you want to use it and not Firefox or Chrome.

Help me make a jquery AJAXed divs' links work like an iframe

I want to make a few divs on the same page work similar to iframes. Each will load a URL which contains links. When you click on those links I want an AJAX request to go out and replace the div's html with new html from the page of the clicked link. It will be very similar to surfing a page inside an iframe.
Here is my code to initially load the divs (this code works):
onload:
$.ajax({
url: "http://www.foo.com/videos.php",
cache: false,
success: function(html){
$("#HowToVideos").replaceWith(html);
}
});
$.ajax({
url: "http://www.foo.com/projects.php",
cache: false,
success: function(html){
$("#HowToProjects").replaceWith(html);
}
});
This is a sample of code that I'm not quite sure how to implement but explains the concept. Could I get some help with some selectors(surround in ?'s) and or let me know what is the correct way of doing this? I also want to display a loading icon, which I need to know where the right place to place the function is.
$(".ajaxarea a").click(function(){
var linksURL = this.href; //
var ParentingAjaxArea = $(this).closest(".ajaxarea");;
$.ajax({
url: linksURL,
cache: false,
success: function(html){
$(ParentingAjaxArea).replaceWith(html);
}
});
return false;
});
$(".ajaxarea").ajaxStart(function(){
// show loading icon
});

Assuming you want to listen to click events for all anchor tags inside all elements with class ajaxarea, then your selector works fine:
$(".ajaxarea a").click(function(){ .. });
And this line of code, while not a selector (you're just accessing a property on the DOM element that was clicked), should work fine as well:
var linksUrl = this.href;
As for ParentingAjaxArea, you'll need to use $(this).closest() with a selector to determine which parent you want, but it's hard to give a specific example without knowing your HTML structure. It looks like you want ParentingAjaxArea to be either the element with id #HowToProjects or #HowToVideos, so you could write:
var ParentingAjaxArea = $(this).closest("#HowToProjects, #HowToVideos");
As for the loading dialog, I think this answer explains a good method (using ajaxStart and ajaxStop).
Edit: I also noticed you're using the click event--If you plan on being able to attach event handlers to links that will be inserted into the DOM via AJAX later, look at delegate or live.

$(".ajaxarea a").live('click',function(e){
e.preventDefault(); //*
var URL = $(this).attr('href');
var parentFrame = $(this).parent(".ajaxarea"); //**
$.ajax({
url: URL,
cache: false,
success: function(html){
parentFrame.replaceWith(html); //***
}
});
});
* - added preventDefault to prevent click action (see e in function's arguments)
** - instead of closest, i used parent – like it more for it's descriptive qualities
*** - the var containing parent AJAX frame should be jQuery object, no need to wrap it in $(..)
This should work fine, but beware, it's untested.
edit:
You probably need a live (okay, I'm sure you need it). what click() does it's that it adds to all elements at the time in DOM an onClick event. What live() does, it's that it waits for any change in DOM and runs used selector (.ajaxarea a) again and if it fits for any of new elements, it adds the action. In pseudocode, it does basically this:
DOM.hasChanged{
$('selector').click(..)
}

I used this example for my own web page:
http://www.queness.com/post/328/a-simple-ajax-driven-website-with-jqueryphp
It works quite well and uses hash tags and jQuery.history.js for the history of your browser. It works very nice, because you can let something like a media player just continue playing. Take a look at my own site elsewise, where you can find the javascript file: ajaxpages.js. I haven't used live(), but maybe I should.

Figured it out! The problem was I was using the function ".replacewith()" which was removing my AJAXed div(class="ajaxarea") entirely instead of replacing the content. The proper function to use here was ".html()".
Here is my working code to make an AJAXed div work like an iframe:
//onload to initialize the div
$.ajax({
url: "http://www.foo.com/projects.php",
cache: false,
success: function(html){
$('#HowToProjects').html(html);
}
});
$(".ajaxarea a").live('click',function(e){ // must use live instead of .click()
e.preventDefault();
var URL = $(this).attr('href');
var parentFrame = $(this).closest(".ajaxarea");
$.ajax({
url: URL,
cache: false,
success: function(html){
parentFrame.html(html);
}
});
});