I'd like to process several blocks of parallel actions, but in a sequential manner.
As an example:
Thus, I want to process blocks, from which I don't know how long they will take and afterwards have a couple of actions, before beginning with another block. I already tried it through using .queue, .ready() etc, but that leads to very ugly or unusable code..
synchronous vs asynchronous $.post
may i know the difference?
I need to create a callback for a line of code that performs asynchronous work so that another a line of code can be called after it is finished. I've found a number of webpages that attempt to show how this can be done with two functions, one calling the other in Russian-doll fashion, but I can't see how to do it with my code.It takes the URL of a sound file, redefines a previously defined embed to point at that sound file, and then plays it. The problem is that I lose focus on the documentElement that was selected before the playIt() function is called. So in the playIt() function I save the focused element in a variable and focus() it after the embed-switcheroo and autoplay is performed. This doesn't work, because the "e.parentNode.replaceChild(clone, e);" is performed asynchronously; when it finishes, it clears the focus in the document (internal id's have changed? Reason unknown.) So I need the focus() code to follow the replaceChild() code. I want to accomplish this by having the focus() code execute as a callback following the replaceChild() code. How would I break this into two procedures, one calling the other, reproducing a synchronous flow?
View 8 Replies View RelatedWhen I try to fetch a page asyncronously I get a status 0 and the response text is empty: PHP Code:
var loaderImage = document.getElementById("loader");
loaderImage.style.display = "inline";
xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState==4 && xmlhttp.status == 200) {
response = xmlhttp.responseText;
alert(response);
[Code]....
I want to make a page which loads the div's with ajax The html code of the page is
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
//styles and other script code
<script language="javascript" src="../js/intro.js"></script>
</script>
[Code]....
Now the problem is that javascript "freezes" and setInterval does not work.. Is there any solution to load the files order such i have it in code one-by-one and run the message function?
I am using the awesome malsup cycle plugin, but it seems like the sync: true option isn't working 100% synchronous. If I activate the sync option and let exactly the same images fade, a short opacity effect occurs.
$(document).ready(function() {
$('.slideshow').cycle({
fx: 'fade',
sync: true,
speed: 1000,
timeout: 4000
});});
<div class="slideshow">
<img src="[URL]" width="200" height="200" />
<img src="[URL]" width="200" height="200" />
<img src="[URL]" width="200" height="200" />
<img src="[URL]" width="200" height="200" />
<img src="[URL]" width="200" height="200" />
</div>
I would like to fade some images with only few differences, and for the user it should look like only those few parts of the image change.
I have an ajax call that I want to display an ajax loader image before it makes the call and then hide that image after it completes the call. The below code is working fine in FF. But when the code is run in IE, for some reason the ajax call is made first and then the image isn't displayed until after the ajax call has completed. I've tried putting the .show() method before the ajax call and even in the beforeSend option of the ajax call, for some reason IE STILL makes the ajax call, and waits for it to complete, before it displays the image.
[Code]...
I'm having (once again) tremendous problems with IE (7), trying to create an application that behaves properly.
This time, it's with Ajax calls triggered by a button click, which do not behave asynchronously.
Here is the highlight of what I'm trying to achieve: a button clicked sends an ajax call to the server whilst the call is made and until the callback function has returned (or an error has been identified), a "wait" animation is triggered. (in the case below, simulated by appending a status in a div)
To achieve this, I decide to use .ajaxStart(), .ajaxStop() and .ajaxError() to trigger the wait animation. It works perfectly in FF and Chrome, but (as usual) not in IE. In IE, when I press the button, the button remains depressed until the ajax call is finished, and then all statuses are dumped at once onto screen. Not very asynchronous...
Here is my code:
If I uncomment line 11 and uncomment the alert, it seems that this forces IE to do things in the proper order. Obviously that's not a solution however...
Will I have to (once again) write IE-specific code to get things working properly?
I'm in the process of trying to shave off as much load time from my site as possible :) I notice that this takes a heck of a long time to load:
[Code]...
Is there a better way I can do this? Maybe using AJAX with ASynchronous? (like we're doing with GAnalytics on the site)
Can I do the following without my program crashing? [code]...
I have created an application that does something similar to the code I just posted. However, my program crashes intermittently. Sometimes it will crash after calling jQuery.get() a few times (with several http requests still pending). Other times it will get through all of them just fine.
I want to know if Ajax can handle that many asynchronous requests without crashing? Can someone look at this to see if there is something I am missing?
Im trying to use jquery to try to do what the image shows: Its for a website made for iphone so im trying to add the slide effect. It all seems a little complicated, but ill explain: 1-The user clicks a link
2-A loading message (or image) appears Meanwhile, the new page loads on a hidden side (its a FULL page, not just a div)
[Code]...
If this is synchronous, normal json request, I can capture the result (data) and return it to a calling function.
However jsonp is not synchronous. Whilst the data IS returned, and I can view it from within the success function, but I cannot access it after that.
$.ajax({
url: remote_url,
async: false,
cache: false,
[Code]....
I am building a library of functions which call this function, so I cannot have the data processing done within the success function, I need to extract the data itself.
I have some trouble with my app. User enters his login&pass, they are being checked on server using ajax, and if they're ok, i wanna open new page, which'll set cookies and session vars, but i have an universal script, and I need request something like universalScript?mode=login (mode is GET) and some POST parameters such as login and pass, besides it must be new page, not ajax, Some ideas?
View 2 Replies View RelatedI want to send another ajax request when one request is in process to get the status of first request.
If I call both the request the second request gets blocked till the completion of the first request.
I am experiencing some crazy stuff, at least crazy to me Both the 'if' and 'else' blocks (according to firebug) are being executed in the following anonymous function:
[Code]...
I've got a bunch of <div> blocks, with a fixed width and height, that are all left floated.I would like a user to be able to click a "remove" link and have it delete a box, and all the boxes to the right "slide in" to fill the void created.I have it working well enough with a "snap" transition. I made that term up because I'm not sure how else to describe it--by "snap" transition I mean that the boxes to the right "snap" into position--there's no "sliding" or easing as they move, it's just moment their in their old positions, and the next moment, everything has been rearranged and they're in their new positions. how to adequately describe it in text, so here's a video showing what I mean: [URL]
View 2 Replies View RelatedI'm trying to understand how jQuery works, so I wanted to create something in order to learn a little bit ;-) here's the case:
I want to create a box with a text in german. Above the text, there are buttons in order to change the language. So, by clicking on "French", the german text disappears and is replaced by the french one. So, I created the buttons and the DIV-Blocks.
The question is, which function I should use with jQuery in order to achieve my goal (?) show / hide ? replace? First, I should show only one DIV, and hide all these others, no?
so this may be a simple question. Anyway: This Script forces a div to be "clickable" what works fine.
$(document).ready(function(){
$(".pane-list li").click(function(){
window.location=$(this).find("a").attr("href");return false;
[code]....
Do anyone have idea about moving the blocks in left or right, or top/bottom like yahoo,
View 3 Replies View RelatedI have an error and I don't know how to solve it. Well I load a page into a div called 'entry_container'for my WP theme and I use this function:
[Code]...
How to determine how a absoluted positioned element was positioned?
For example, a div positioned with bottom: 10px, will have a "top" read in Firefox. But if using "top" to move the box, instead of moving it, it will grow or shrink.
Am working on a form, which has around 10 fields and 1 field for the captcha. Assuming that the user enters the wrong captcha code, am trying to use Ajax to ensure that the other field information isnt lost due to form submission.
I have also written a validation script, to ensure that all the field values have been entered.
I have written the ajax script, and am using this:
Code:
xmlhttp.open("GET",url, false);
The reason I am making a sync call is, depending on whether the user has entered the correct code, I am going to submit the form using javascript.
With IE, this works fine, but with FF it doesn't. Is there a workaround for this? If so, how?
The entire code for reference:
Code:
var xmlhttp
function showHint(str)
{
if (str.length==0)
{
[Code]....
I don't know if it's appropriate to discuss a JS library here, but I'm wanting to use jQuery to toggle the display of content based on a selected radio button. Here's an example HTML
Code:
<label><input type="radio" name="toggler" value="block01" />Show block 1</label>
<label><input type="radio" name="toggler" value="block02" />Show block 2</label>
<label><input type="radio" name="toggler" value="block03" />Show block 3</label>
<div id="block01>This is block 1</div>
<div id="block02>This is block 2</div>
<div id="block03>This is block 3</div>
Obviously the idea is that only one block is displayed at a time. I'm happy to get the effect anyway possible, but I do want to use jQuery because I believe it will be easier in the long run.
What I don't know how to do is to use the value of a selected radio option to show a block with the same ID as the value. I'm also not sure if I'm correctly select a name when I use $("[name='toggler']").
EDIT: Actually, I don't seem to be able to select the radio buttons using any other method than $("input"). Even if I give each input the same class I can't select it using $(".toggler").
[div id="WhateverHolder"]
[div class="item"][/div]
[div class="item"][/div]
[div class="item"][/div]
[code]....
I have looked for a plugin that can do this but to no avail what is the easiest way to do this in jQuery
An experiment i'm doing requires requires a synchronous cross-domain
request, without using a proxy. I wondered if anyone had any ideas to
help me achieve this.
Below is what I have tried, including my conclusions/assumptions
(which i'll happily be corrected on if it solves my problem!):
The requirement not to use a proxy means I can't use the synchronous
mode of XMLHttpRequest, as it will not let me go cross-domain.
On-demand loading of javascript enables me to achieve the cross-domain
request by loading javascript of the form:
callback(data);
which on loading calls callback(), but it is not obvious how to make
this synchronous. I've also managed to get the same effect using a
hidden IFRAME, but again it relies on a callback. Is there a good way
to wrap/transform this in to a synchronous request? Code:
I need to do something unusual. Say a user is browsing my site, and before they navigate away, I need to perform some actions like logging them out, for which they would need some data from the server. On onunload, a SJAX request (AJAX with that parameter as false) is issued, code flow hangs, and when the result comes in, code flow resumes and does what it needs to. If AJAX were used, the script would unload and never get the callback. Ok. So that's what I want. The problem is that I'm dealing with something other than an XMLHttpRequest object, and I can't simply supply a false parameter to the request function. I'm looking for some way to wrap an asynchronous routine of this object into a synchronous one. If call var result = myobject.get(data_to_send), code flow here hangs WHILE myobject calls this funky XMLHttpRequest-like object in asynchronous mode, waits for the callback, the callback is called, and myobject returns the result. So code stops synchronously outside of myobject.get, but waits asynchronously inside.
View 2 Replies View Related