JQTOUCH - Anytime loading occurs, add a loading class?

I'm using JQTOUCH and in JQTOUCH several of the links are being loading via AJAX and then sliding in. The problem is that there is no loading indication provided to users.

I'd like a way to add a Loading class with an AJAX spinner, when ever the an ajax call is loading, and have the class removed when the loading is done, and the page is displayed.

开发者_JAVA百科Any ideas?

the showPageByHref() answer is partially correct.

But, instead of

$('body').append('<div id="loadinginprogress">Loading...</div>');

You need

$('.current').append('<div id="loadinginprogress">Loading...</div>');

Body is too general for jqtouch, need to be specific to the currently displayed DIV-page

showPageByHref() function in jqtouch js is a good start. i added it right into ajax call so the please wait will not flicker when you click on link that is already loaded etc.

In short - add loading div (id loadinginprogress in exmaple) right before the ajax call and remove later "success" or "error". the ajax call section would look something like that (shortened it ):

function showPageByHref(href, options) {
...
if (href != '#'){
    $('body').append('<div id="loadinginprogress">Loading...</div>');
    $.ajax({
        url: href,
        data: settings.data,
        type: settings.method,
        success: function (data, textStatus) {
            $('#loadinginprogress').remove()
            var firstPage = insertPages(data, settings.animation);
            if (firstPage)
            {
                if (settings.method == 'GET' && jQTSettings.cacheGetRequests && settings.$referrer)
                {
                    settings.$referrer.attr('href', '#' + firstPage.attr('id'));
                }
                if (settings.callback) {
                    settings.callback(true);
                }
            }
        },
        error: function (data) {
            $('#loadinginprogress').remove()
            if (settings.$referrer) settings.$referrer.unselect();
            if (settings.callback) {
                settings.callback(false);
            }
        }
    });
}
...
}

css for loading div would be something like:

#loadinginprogress {
    -webkit-border-radius: 10px;
    background-color: rgba(0,0,0,.5);
    color: white;
    font-size: 18px;
    font-weight: bold;
    height: 80px;
    left: 60px;
    line-height: 80px;
    margin: 0 auto;
    position: absolute;
    text-align: center;
    top: 120px;
    width: 200px;
    z-index: 5000;
}

This is the basic behavior if your links are li class="arrow" elements. how are you displaying your links and where do you want the loading-spinner to display?

Thank you for your different posts. They helped me a lot.

I have a solution to propose without patching the jQtouch code on which jQTouch relies. It uses jQuery ajax capabilities.

$(document).ready(function() {
...
  $('#jqt').ajaxStart(function() {
    console.log("ajaxStart");
    ...
  }).ajaxSuccess(function() {
    console.log("ajaxSuccess");
    ... 
  }).ajaxError(function() {
    console.log("ajaxError");
    .... 
  });
....
});

more details available in this jQuery doc page.

You could add a custom event handler, and trigger the loading.gif everytime the click on the specific element was done.

I just answered Darin Parker's question. Just check it out it may help you.