jQuery add/removeClass & AJAX not working - javascript

I'm using Isotope with AJAX to pull in some posts in WordPress, pretty much everything is there, except for the default Isotope animation runs when I AJAX in content, which looks a bit weird. I still wanted it to animate when filtered though.
So I thought I could just use add/removeClass within my AJAX function to turn it off/on when needed, but if I do the animation never runs.
Any ideas where I'm going wrong here?
var page = 1;
var loading = true;
var $window = $(window);
var $content = $('.isotope');
if( $('body').hasClass('home') ) {
var loopHandler = '/inc/loop-handler.php';
} else {
var loopHandler = '/inc/loop-handler-archive.php';
}
var load_posts = function(){
$.ajax({
type : "GET",
data : {numPosts : 1, pageNumber: page},
dataType : "html",
url : templateDir+loopHandler,
beforeSend : function(){
if(page != 1){
$('.loader').append('<div id="temp_load" style="text-align:center; z-index:9999;">\
<img src="'+templateDir+'/img/ajax-loader.gif" />\
</div>');
}
},
success : function(data){
$data = $(data);
if($data.length){
var itemHeight = $('.item').height();
var height = $content.height()+itemHeight*2;
$content.append($data);
$content.css('min-height', height);
$data.hide();
// should stop the animation
$('.isotope').addClass('no-transition');
$content.isotope('destroy');
$content.imagesLoaded( function(){
$content.isotope({
// options
layoutMode: 'fitRows',
itemSelector : '.item'
});
});
$data.fadeIn(700, function(){
$("#temp_load").fadeOut(700).remove();
loading = false;
});
// should start up the animation again
$('.isotope').removeClass('no-transition');
$content.css('min-height', '0');
} else {
$("#temp_load").remove();
}
},
error : function(jqXHR, textStatus, errorThrown) {
$("#temp_load").remove();
alert(jqXHR + " :: " + textStatus + " :: " + errorThrown);
}
});
}
$window.scroll(function() {
var content_offset = $content.offset();
console.log(content_offset.top);
if(!loading && ($window.scrollTop() +
$window.height()) > ($content.scrollTop() +
$content.height() + content_offset.top)) {
loading = true;
page++;
load_posts();
}
});
load_posts();
If you need any of the HTML/PHP I'm happy to post it up. Also, here's the dev site if you want to check it out.

I don't know Isotope and I have not tested if it works. But I have refactor your code with annotations to help you better understand the problem.
I think it comes from how you call removeClass and addClass successively, the two instantly cancel.
var page = 1;
var loading = true;
var $window = $(window);
var $content = $('.isotope');
var loopHandler = '/inc/loop-handler.php';
var isotopeController = {
append: function($data) {
// Add AJAX data
var itemHeight = $('.item').height();
var height = $content.height() + itemHeight * 2;
$content.append($data);
$content.css('min-height', height);
// Stop
isotopeController.stop($data);
// Restart
$content.imagesLoaded(function() {
// When images loaded !
isotopeController.start($data);
});
},
start: function($data) {
// Start isotope
$content.isotope({
layoutMode: 'fitRows',
itemSelector: '.item'
});
// Show data
$data.fadeIn(700, function() {
$("#temp_load").fadeOut(700).remove();
loading = false;
});
// Start the animation
$content.removeClass('no-transition');
$content.css('min-height', '0');
},
stop: function($data) {
// Hide data
$data.hide();
// Stop the animation
$content.addClass('no-transition');
// Stop isotope
$content.isotope('destroy');
},
loadPosts: function() {
$.ajax({
type: "GET",
data: {
numPosts: 1,
pageNumber: page
},
dataType: "html",
url: templateDir + loopHandler,
beforeSend: function() {
if (page != 1) {
$('.loader').append('' +
'<div id="temp_load" style="text-align:center; z-index:9999;">' +
'<img src="' + templateDir + '/img/ajax-loader.gif" />' +
'</div>'
);
}
},
success: function(data) {
var $data = $(data);
if ($data.length) {
isotopeController.append($data);
} else {
$("#temp_load").remove();
}
},
error: function(jqXHR, textStatus, errorThrown) {
$("#temp_load").remove();
alert(jqXHR + " :: " + textStatus + " :: " + errorThrown);
}
});
}
};
$window.scroll(function() {
var content_offset = $content.offset();
if (!loading && ($window.scrollTop() + $window.height()) > ($content.scrollTop() + $content.height() + content_offset.top)) {
loading = true;
page++;
isotopeController.loadPosts();
}
});
// On load
$(function() {
if (!$('body').hasClass('home')) {
loopHandler = '/inc/loop-handler-archive.php';
}
isotopeController.loadPosts();
});

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Javascript module parttern ajax

I am learning javascript design patterns. So am converting my rough jquery code into cleaner module pattern. The question is, how will i call a click event after ajax has loaded in module pattern (Object literal). I used to solve it using $(document).ajaxcomplete(callback).
here is the working supergetti code
$('.meidaBtn, #media_load_btn').on('click', function(event) {
event.preventDefault();
$('.media').show(500);
$('#mediaBox').html('Loading...');
var link = location.origin + '/dashboard/media';
$.ajax({
url: link
}).done(function(data) { // data what is sent back by the php page
$('#mediaBox').html(data); // display data
// Click through
$('.imageBox img').bind('click', function() {
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var alt = $(this).attr('alt');
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});
Here is the javascript module pattern / object literal
var mediaPlugin = {
init: function() {
this.cacheDom();
this.bindEvents();
},
// Cache Dom
cacheDom: function() {
this.baseUrl = location.origin + '/dashboard/media';
this.$button = $('.meidaBtn, #media_load_btn');
this.$media = $('.media');
this.$mediaBox = $('#mediaBox');
this.$imageBox = $('.imageBox img');
},
// Bind Events
bindEvents: function() {
this.$button.on('click', this.render.bind(this));
this.$imageBox.on('click', this.addImage.bind(this));
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// Show Data
render: function(e) {
e.preventDefault();
this.$media.show(500);
this.loadData();
},
// Load the data
loadData: function() {
var that = this;
$.ajax({
url: this.baseUrl,
type: 'GET',
success: function(data) {
// console.log(that.$mediaBox);
that.$mediaBox.html(data);
},
error: function() {
console.log("An error occored!");
},
complete: function() {
// console.log("I am now complete");
// that.loadMore();
}
});
},
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var src = $(this).attr('src');
var alt = $(this).attr('alt');
src = src.replace('tumbnail_', '');
tinyMCE.execCommand('mceInsertContent', false, '<img src="' + src + '" alt="' + alt + '">');
this.$media.hide();
}
};
mediaPlugin.init();
The method provided below adds a simple property to the object which is used as a delegate/callback. You simply point your function to it and then it is called automatically since it is called in the complete event.
var mediaPlugin = {
init: function() {
this.cacheDom();
this.bindEvents();
},
// Cache Dom
cacheDom: function() {
this.baseUrl = location.origin + '/dashboard/media';
this.$button = $('.meidaBtn, #media_load_btn');
this.$media = $('.media');
this.$mediaBox = $('#mediaBox');
this.$imageBox = $('.imageBox img');
},
// Bind Events
bindEvents: function() {
this.$button.on('click', this.render.bind(this));
this.$imageBox.on('click', this.addImage.bind(this));
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// Show Data
render: function(e) {
e.preventDefault();
this.$media.show(500);
this.loadData();
},
loadDataComplete: function() {},
// Load the data
loadData: function() {
var that = this;
$.ajax({
url: this.baseUrl,
type: 'GET',
success: function(data) {
// console.log(that.$mediaBox);
that.$mediaBox.html(data);
},
error: function() {
console.log("An error occored!");
},
complete: function() {
// console.log("I am now complete");
// that.loadMore();
that.loadDataComplete();
}
});
},
// Add Image
addImage: function() {
var src = $(this).attr('src');
var alt = $(this).attr('alt');
src = src.replace('tumbnail_', '');
tinyMCE.execCommand('mceInsertContent', false, '<img src="' + src + '" alt="' + alt + '">');
this.$media.hide();
}
};
var myCompleteFunction = function myCompleteFunction() {}
mediaPlugin.init();
mediaPlugin.loadDataComplete = myCompleteFunction;
mediaPlugin.loadData();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
I finally figured how to get this code working. I used jquery .delegate() and i now work like magic. Below is the working code. thanks #abc123 for stoping by.
var media = (function(){
// Cache dom
var baseUrl = location.origin+'/dashboard/media';
var $button = $('.meidaBtn, #media_load_btn');
var $media = $('.media');
var $mediaBox = $('#mediaBox');
var $imageBox = $mediaBox.find('img');
var options = {
url: baseUrl,
type: 'GET',
success: function(data){
$mediaBox.html(data);
},
error: function(){
console.log("An error occored!");
},
complete: function(){
// console.log("I am now complete");
// that.loadMore();
}
};
// Bind Events
$button.on('click', _render);
$mediaBox.delegate('.imageBox', 'click', _addImage);
function _render(e){
e.preventDefault();
$media.show(500);
_loadData();
}
// Load images
function _loadData(){
$.ajax(options);
}
// Add Images
function _addImage(){
img = $(this).find('img');
console.log(img.attr('src')); // This should display the image url
}
})();

Disable page behind on processing using Javascript in MVC4

I am using MVC4 in my project. On click of a button on a page, I need to show a dialog and then on confirmation, I need to do an event processing.
$('#btn1).click(function (e) {
e.preventDefault();
var meetingvar = new Array();
var cells = $(this).closest('td').siblings('td');
meetingvar = $(cells[2]).text().split(",");
var params = {};
params.meetingdate = meetingvar[0];
params.meetingstate = meetingvar[1];
params.meetingvenue = meetingvar[2];
$.ajax(
{
type: 'GET',
url: '/[Controler]/[action1],
data: { MeetingDate: params.meetingdate, MeetingState: params.meetingstate, MeetingVenue: params.meetingvenue },
beforeSend: function (jqXHR, settings) {
setLoaderLabel('Please wait...');
showLoader();
}
}).done(function (data, textStatus, jqXHR) //success callback
{
if ($.trim(data) == 1) {
var dialog = $('<p>Confirmation Required. Do you want to overwite ?</p>').dialog({
buttons: {
"Yes": function () { //alert('you chose yes');
window.location.href = '/[Controller]/[Action2]?MeetingDate=' + meetingvar[0] + '&MeetingState=' + meetingvar[1] + '&MeetingVenue=' + meetingvar[2] + '&toGen=1';
},
"No": function () { //alert('you chose no');
window.location.href = '/[controller]/[action2]?MeetingDate=' + meetingvar[0] + '&MeetingState=' + meetingvar[1] + '&MeetingVenue=' + meetingvar[2] + '&toGen=0';
},
"Cancel": function () {
dialog.dialog('close');
}
}
});
}
if ($.trim(data) == 0) {
showLoader();
window.location.href = '/[controller]/[action1]?MeetingDate=' + meetingvar[0] + '&MeetingState=' + meetingvar[1] + '&MeetingVenue=' + meetingvar[2] + '&toGen=1';
}
if ($.trim(data) == 2) {
ShowErrorMessage('<p>NOT DEFINED</p>');
}
}).fail(function (jqXHR, textStatus, errorThrown) //error callback
{
var errorMsg = GetAjaxResponseTitle(jqXHR.responseText);
ShowErrorMessage('<p>' + errorThrown + '</p>' + errorMsg);
hideLoader();
}).always(function () //complete callback
{
hideLoader();
});
});
Here , on success, from first action1 is it going to success, with the Loader(basically disabling the main page). But I need the same Loader functionality on Click of Yes or No, because, before redirecting there is an event which takes some time. At this stage, shouldn't allow user to click on any other button on the base page. Don't know how to achieve this. Please appreciate any help.
Thanks In advance

Multiple calls to Ajax instead of once

I have the following code which works fine for most cases, but the problem I am having is on mouse over . After you hover for 10 sec the content expands and then calls ajax. The Ajax is making calls 5 times instead of just once.
I am not sure why its keep calling 5 times. Can someone help me fix this so ajax call runs only once?
Here is my code snippet below and the full working fiddle demo is here
$(".previewCard-content").hide();
var timeo = null;
$("body").on("mouseenter", ".previewCard-showhide", function() { // Use rather mouseenter!
var $that = $(this); // Store the `this` reference
clearTimeout(timeo); // Clear existent timeout on m.Enter
timeo = setTimeout(function() { // Before setting a new one
$that.hide().closest('p').next(".previewCard-content").slideDown("slow");
/**************** AJAX CALL********************/
var LinkTextVal = $that.closest('.previewCard-b').find('.previewCardPageLink').text();
console.log(" LinkTextVal " + LinkTextVal);
var descPageName = LinkTextVal + ' | About';
if ($('#userID').val() !== '' && $('#userID').val() !== undefined && $('#userID').val() !== null) {
$.ajax({
url: '/localhost/biz/actions/searchBookmark' + '?cachestop=' + nocache,
type: "get",
data: {
bookmarkName: descPageName
},
success: function(response) {
if (response === true) {
$that.parents('.previewCard-b').find('.save a').addClass('saved');
$that.parents('.previewCard-b').find('.save a').addClass('active');
$that.parents('.previewCard-b').find('.save a').find(".action-text").text("Saved");
}
},
error: function(e) {
console.log('Unable to check if a bookmark exists for the user.');
}
});
}
/***************** END AJaX/SAVE BUTTON ************/
}, 1000);
}).on("mouseleave", ".previewCard-showhide", function() { // mouse leaves? Clear the timeout again!
clearTimeout(timeo);
});
$(".close-btn").on("click", function() {
var $itemB = $(that).closest(".previewCard-b");
$itemB.find(".previewCard-content").slideUp();
$itemB.find(".previewCard-showhide").show();
});
Mouse hover events happen every time the mouse moves over the element. You need is to have a boolean which checks if you have sent the AJAX Request or not, and if it hasn't send the AJAX request, else ignore the event.
$(".previewCard-content").hide();
var timeo = null;
var ajaxSent = false
$("body").on("mouseenter", ".previewCard-showhide", function() { // Use rather mouseenter!
var $that = $(this); // Store the `this` reference
clearTimeout(timeo); // Clear existent timeout on m.Enter
timeo = setTimeout(function() { // Before setting a new one
$that.hide().closest('p').next(".previewCard-content").slideDown("slow");
/**************** AJAX CALL********************/
var LinkTextVal = $that.closest('.previewCard-b').find('.previewCardPageLink').text();
console.log(" LinkTextVal " + LinkTextVal);
var descPageName = LinkTextVal + ' | About';
if ($('#userID').val() !== '' && $('#userID').val() !== undefined && $('#userID').val() !== null && !ajaxSent) {
ajaxSent = true;
$.ajax({
url: '/localhost/biz/actions/searchBookmark' + '?cachestop=' + nocache,
type: "get",
data: {
bookmarkName: descPageName
},
success: function(response) {
if (response === true) {
$that.parents('.previewCard-b').find('.save a').addClass('saved');
$that.parents('.previewCard-b').find('.save a').addClass('active');
$that.parents('.previewCard-b').find('.save a').find(".action-text").text("Saved");
}
},
error: function(e) {
console.log('Unable to check if a bookmark exists for the user.');
}
});
}
/***************** END AJaX/SAVE BUTTON ************/
}, 1000);
}).on("mouseleave", ".previewCard-showhide", function() { // mouse leaves? Clear the timeout again!
clearTimeout(timeo);
});
$(".close-btn").on("click", function() {
var $itemB = $(that).closest(".previewCard-b");
$itemB.find(".previewCard-content").slideUp();
$itemB.find(".previewCard-showhide").show();
});

Ajax call doesn't work after success

I have a problem with ajax call after success.
I am trying to call my following javascript codes:
function imgResize($, sr) {
var debounce = function(func, threshold, execAsap) {
var timeout;
return function debounced() {
var obj = this,
args = arguments;
function delayed() {
if (!execAsap)
func.apply(obj, args);
timeout = null;
};
if (timeout)
clearTimeout(timeout);
else if (execAsap)
func.apply(obj, args);
timeout = setTimeout(delayed, threshold || 100);
};
}
// smartresize
jQuery.fn[sr] = function(fn) {
return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr);
};
};
//CALL ON PAGE LOAD OR ANY TIME YOU WANT TO USE IT
imgResize(jQuery, 'smartresize');
/* Wait for DOM to be ready */
// Detect resize event
$(window).smartresize(function() {
// Set photo image size
$('.photo-row').each(function() {
var $pi = $(this).find('.photo-item'),
cWidth = $(this).parent('.photo').width();
// Generate array containing all image aspect ratios
var ratios = $pi.map(function() {
return $(this).find('img').data('org-width') / $(this).find('img').data('org-height');
}).get();
// Get sum of widths
var sumRatios = 0,
sumMargins = 0,
minRatio = Math.min.apply(Math, ratios);
for (var i = 0; i < $pi.length; i++) {
sumRatios += ratios[i] / minRatio;
};
$pi.each(function() {
sumMargins += parseInt($(this).css('margin-left')) + parseInt($(this).css('margin-right'));
});
// Calculate dimensions
$pi.each(function(i) {
var minWidth = (cWidth - sumMargins) / sumRatios;
$(this).find('img')
.height(Math.floor(minWidth / minRatio))
.width(Math.floor(minWidth / minRatio) * ratios[i]);
});
});
});
/* Wait for images to be loaded */
$(window).load(function() {
$(".photo").each(function() {
var imgGrab = $(this).find('.photo-item');
var imgLength = imgGrab.length;
for (i = 0; i < imgLength; i = i + 3) {
imgGrab.eq(i + 1)
.add(imgGrab.eq(i + 1))
.add(imgGrab.eq(i + 2))
.wrapAll('<div class="photo-row"></div>');
}
$(this).find(".photo-item").each(function() {
if ($(this).parent().is(":not(.photo-row)")) {
$(this).wrap('<div class="photo-row"></div>');
}
});
// Store original image dimensions
$(this).find('.photo-item img').each(function() {
$(this)
.data('org-width', $(this)[0].naturalWidth)
.data('org-height', $(this)[0].naturalHeight);
});
});
$(window).resize();
});
And here is my ajax code for LOAD MORE POST
$('body').on("click",'.morep', function(event) {
event.preventDefault();
var ID = $(this).attr("id");
var P_ID = $(this).attr("rel");
var URL = $.base_url + 'more_post.php';
var dataString = "lastpid=" + ID + "&post_id=" + P_ID;
if (ID) {
$.ajax({
type: "POST",
url: URL,
data: dataString,
cache: false,
beforeSend: function() {
$("#more" + ID).html('<img src="loaders/ajaxloader.gif" />');
},
success: function(html) {
$("div.post-content").append(html);
$("#more" + ID).remove();
imgResize(jQuery, 'smartresize');
}
});
} else {
$("#more").html('FINISHED');
}
return false;
});
The ajax should call imgResize(jQuery, 'smartresize'); but it is not working. What I am missing here anyone can help me here ?

Ajax loop WordPress Posts

I'm trying to apply this tutorial on my website
Getting Loopy - Ajax Powered Loops with jQuery and WordPress
DEMO
I applied everything and I'm getting this error from Chrome console
Uncaught TypeError: undefined is not a function
This my code:
// ajaxLoop.js
jQuery(function($){
var page = 1;
var loading = true;
var $window = $(window);
var $content = $("#articles-wrapper");
var load_posts = function(){
$.ajax({
type : "GET",
data : {numPosts : 5, pageNumber: page},
dataType : "html",
url : "http://www.dzlng.com/demo/wp-content/themes/dzlng/loopHandler.php",
beforeSend : function(){
if(page != 1){
/* $content.append('<div id="temp_load" style="text-align:center">\
loading....\
</div>');*/
}
},
success : function(html){
$data = $(html);
if($data.length){
//$data.hide();
var newItems = $(html).appendTo($("#articles-wrapper"));
imagesLoaded('#articles-wrapper', function() {
$("#articles-wrapper").isotope('appended', newItems );
});
$data.fadeIn(500, function(){
$("#temp_load").remove();
loading = false;
});
} else {
$("#temp_load").remove();
}
},
error : function(jqXHR, textStatus, errorThrown) {
$("#temp_load").remove();
alert(jqXHR + " :: " + textStatus + " :: " + errorThrown);
}
});
}
$window.scroll(function() {
var content_offset = $content.offset();
//console.log(content_offset.top);
if(!loading && ($window.scrollTop() +
$window.height()) > ($content.scrollTop() + $content.height() + content_offset.top)) {
loading = true;
page++;
load_posts();
}
});
load_posts();
});
And:
<?php
//loopHandler.php
// Our include
define('WP_USE_THEMES', false);
require_once('../../../wp-load.php');
// Our variables
$numPosts = (isset($_GET['numPosts'])) ? $_GET['numPosts'] : 0;
$page = (isset($_GET['pageNumber'])) ? $_GET['pageNumber'] : 0;
query_posts(array(
'posts_per_page' => $numPosts,
'paged' => $page
));
// our loop
if (have_posts()) {
while (have_posts()){
the_post();
get_template_part( 'content', 'item' );
}
}
wp_reset_query();
?>
I tried few stuff but it's not working.

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