I am trying to build my own 'infinite scroll' so I have more control than using a plugin.
I currently have the below:
$(window).scroll(function(){
if ($(window).scrollTop() == $(document).height() - $(window).height()){
loadNew();
}
});
function loadNew(){
var next = $('a.next').attr('href');
$.ajax({
url: next,
success: function(html){
** GET ALL '.grid-item' TO USE BELOW**
var $newElems = $( **ALL .grid-item** ).css({ opacity: 0 });
$newElems.imagesLoaded(function(){
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true );
});
}
});
return false;
}
This is so far triggering when the user scrolls to the bottom of the page, its then getting the 'next' URL from the pagination and returning the full HTML of the page in the success call.
As you can see in my code, I want to get all divs with the class '.grid-item' to be used by the code below.
I am really struggling to get the '.grid-item' divs seperated to be used.
Is anyone able to explain how I can do this?
What you can do is convert the returned html to a jQuery object so that you can parse it using find() to get the relevant elements. This is done easily by wrapping the html like this, $(html), but if there is a doctype declaration then that will break it. What I normally do is make sure I've only got data that starts from the opening html tag.
Try this...
function loadNew(){
var next = $('a.next').attr('href');
$.ajax({
url: next,
success: function(html){
html = html.substr("<html"); // remove the doctype
var $newElems = $(html).find(".grid-item").css({ opacity: 0 });
$newElems.imagesLoaded(function(){
$container.append($newElems).masonry("appended", $newElems, true);
$newElems.css({ opacity: 1 });
});
}
});
return false;
}
Also, you need to first append the elements to the container, and then tell masonry that you've done so. The masonry appended call doesn't actually append anything.
Related
Hi everyone i have one problem about masonry items.
I have created this DEMO from codepen.io
In this demo you can see there is this javascript code:
$(window).load(function()
{
$( function() {
var $container = $('.posts-holder');
$container.masonry({
isFitWidth: true,
itemSelector: '.kesif-gonderi-alani'
});
});
});
I show only 10 posts when a page is opened. If user want to show other 10 posts then user needs to click (show more button). I created this ajax function for show more posts.
$('.showmore').live("click",function(event)
{
event.preventDefault();
var ID = $(this).attr("id");
var P_ID = $(this).attr("rel");
var URL=$.base_url+'diger_fotograflar_ajax.php';
var dataString = "lastid="+ ID+"&profile_id="+P_ID;
if(ID)
{
$.ajax({
type: "POST",
url: URL,
data: dataString,
cache: false,
beforeSend: function(){ $("#more"+ID).html('<img src="wall_icons/ajaxloader.gif" />'); },
success: function(html){
$("div.posts-holder").append(html).each(function(){
$('.posts-holder').masonry('reloadItems');
});
$("#more"+ID).remove();
}
});
}
else
{
$("#more").html('The End');// no results
}
return false;
});
this code working when clicking showmore button $('.posts-holder').masonry('reloadItems'); but collecting new posts in one place. But when I change the width of the page everything is improving.
I think that you can use $container.masonry(); after adding your elements, like this :
$("div.posts-holder").append(html).each(function(){
$('.posts-holder').masonry('reloadItems');
});
$container.masonry();
You can see it working here.
Hope that can help.
you have to use the appended method of masonry ... otherwise how would it know that you have added any new element.
Adding the elements simply wont align them as masonry doesnt have any event listner for new element added.
var el = $('<div class="kesif-gonderi-alani" style="height:300px;"></div>')
$container.masonry().append( el ).masonry( 'appended',el );
Hers is small demo on codepen http://codepen.io/knaman2609/pen/xbJMRY
Click on the button to append elements dynamically
http://masonry.desandro.com/methods.html
I'm using infinite scroll with masonry everything works fine and lines up correctly. I have a button that when i click it makes that div bigger and shows extra content. the button works and loads fine when the page initially loads but when i scroll down and infinite loads new items and if i click the button to show more it jumps to the top of the screen.
I'm guessing i have to do some callback? Im kinda confused on this. How should I approach it?
this is the code im using:
$(function(){
$(".fancybox").fancybox();
var $container = $('.main_containera');
$container.imagesLoaded(function(){
$container.masonry({
itemSelector: '.item1',
columnWidth: 0
});
});
var nextSelector = '.pagination-next a';
var origNextUrl = $(nextSelector).attr('href');
var offsetRegex = /(offset=)([0-9]+)/;
var offset = origNextUrl.match(offsetRegex)[2];
$container.infinitescroll({
navSelector : '.paginate', // selector for the paged navigation
nextSelector : '.pagination-next a', // selector for the NEXT link (to page 2)
itemSelector : '.item1', // selector for all items you'll retrieve
loading: {
finishedMsg: 'No more pages to load.',
img: 'http://i.imgur.com/6RMhx.gif'
}
},
// trigger Masonry as a callback
function( newElements ) {
// hide new items while they are loading
var $newElems = $( newElements ).css({ opacity: 0 });
// ensure that images load before adding to masonry layout
$newElems.imagesLoaded(function(){
// show elems now they're ready
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true );
});
}
);
$('.comment_tr').click(function (e) {
$(this).toggleClass('disabled');
$(this).parent().parent().parent().find('form').slideToggle(250, function () {
$('.main_containera').masonry();
});
e.preventDefault();
});
});
Try changing
$('.comment_tr').click(function (e) {
$(this).toggleClass('disabled');
$(this).parent().parent().parent().find('form').slideToggle(250, function () {
$('.main_containera').masonry();
});
e.preventDefault();
});
to
$('.comment_tr').click(function (e) {
$(this).toggleClass('disabled');
$(this).parent().parent().parent().find('form').slideToggle(250, function () {
$('.main_containera').masonry();
});
e.preventDefault();
e.stopPropagation( );
});
The click event may be propagating up to another link element which has an empty href or one that returns the user to the same page which usually just takes you back to the top. Alternatively, you could replace e.preventDefault(); and e.stopPropagation(); with return false;.
It's hard to say for sure that that's the issue without seeing the HTML though.
Could you post the HTML if that change doesn't work?
I'm making a simple responsive Wordpress Theme and I want only one page there, and the content loaded via AJAX, so I have an AJAX function:
jQuery(document).ready(function(){
jQuery.ajaxSetup({cache:false});
jQuery("#mainnav a").click(function(){
var post_link = jQuery(this).attr("href");
jQuery("body").load(post_link);
return false;
});
});
It's meant to load entire pages content (entire body) on clicking menu links. And it works well.
But the problem is I have a jQuery script responsible for centering content div:
(function (jQuery) {
jQuery.fn.centerAlign = function() {
return this.each(function(i){
var w = jQuery(this).width();
var ow = jQuery(this).outerWidth();
var ml = (w + (ow - w)) / 2;
var h = jQuery(this).height();
var oh = jQuery(this).outerHeight();
var mt = (h + (oh - h)) / 2;
jQuery(this).css("margin-top", "-" + mt + "px");
jQuery(this).css("top", "50%");
jQuery(this).css("margin-left", "-" + ml + "px");
jQuery(this).css("left", "50%");
jQuery(this).css("position", "absolute");
});
};
})(jQuery);
jQuery(document).ready(function() {
jQuery("#content").centerAlign();
});
That script centers the #content div at reload instatly, so I mean there is no delay. The div is centered from the start.
Problem is when I combine that scripts, because after AJAX loads the entire body, #content div is not positioned for ~1 second (in top-left corner of the page) and then it comes back to its place. So jQuery script works with a delay.
I coulnd't find a solution for that problem, .on and .live don't work for me. I think I could just load each page content into a #content div, not entire "body", but I don't know how to make it.
I'd appreciate if you can help me with that, so it will just resize the #content div with animation, not position it from start.
EDIT:
Ok, I ended up with such code:
jQuery(function(){
jQuery("#mainnav a").click(function(e){
var content=jQuery("#content");
jQuery.ajax({
url: jQuery(this).attr('href'),
dataType: "HTML",
beforeSend: function(){
content.empty();
},
success: function(){
content.load();
},
error : function(){
content.html("<p>Przepraszamy, ale strona jest chwilowo niedostępna</p>");
},
});
e.preventDefault();
})
})
It should work, but the problem is that I can't figure out what should I put in that lines:
success: function(){
content.load();
It workd up to that point. I clears the #content div but when I put content.load("#content"); it loads entire page, with menu and footer. And I want to load just #content content.
EDIT:
Ok. Firebug shows that this code is working, but there is nothing shown within the #content div in broswer window.
jQuery(function(){
jQuery("#mainnav a").click(function(e){
var content=jQuery("#content");
var href=jQuery(this).attr('href');
var text = jQuery(this).find('#content').html();
jQuery.ajax({
url: jQuery(this).attr('href'),
dataType: "HTML",
beforeSend: function(){
content.empty();
},
success: function(){
content
.html(text)
.centerAlign();
},
error : function(){
content.html("<p>Content Unavailable</p>");
},
});
e.preventDefault();
})
})
I think you're on the right track with your new code, you just need to fill out your success function:
success: function( html ){
html = jQuery(html).find('#content').html();
content.html(html).centerAlign();
},
or perhaps (using th1rdey3's idea):
success: function( html ){
html = jQuery(html).find('#content').centerAlign().html();
content.html( html );
},
You could centerAlign #content before placing it inside body. Something like this
var $div = jQuery('<div/>').load(post_link);
$div.find('#content').first().centerAlign();
jQuery('body').html($div.html());
or only loading the content part
var $div = jQuery('<div/>').load(post_link);
jQuery('#content').first().html($div.find('#content').first().html());
My javascript looks like the following:
<script type="text/javascript">
$(document).ready(function() {
// isotope
var $container = $('#content');
$container.imagesLoaded( function(){
$container.isotope({
filter: '*',
itemSelector : '.element',
getSortData : {
colors : function( $elem ) {
return $elem.find('.colors').text();
},
number : function( $elem ) {
return $elem.find('.number');
}
}
});
var $sortedItems = $container.data('isotope').$filteredAtoms;
// filter items when filter link is clicked
$('#filter a').click(function(){
alert("filter");
var selector = $(this).attr('data-filter');
$container.isotope({ filter: selector });
return false;
});
// sorting
$('#sort a').click(function(){
var sortType = $(this).attr('data-sort');
$container.isotope({ sortBy : sortType });
return false;
});
});
});
function updateContent(path, args) {
$.ajax({
url: (path+args),
type: "POST",
success: function( data ){
$(allCards).remove();
$("#content").html( data );
$('#content').isotope( 'reLayout', callback );
}
});
}
function callback() {
alert("success: "+$('#content').height());
}
</script>
Whenever I use the updateContent() function the height of the #content div becomes 0. I think there could be a race condition happening due to the content not having been fully loaded and isotope initializing before the next set of images have been loaded.
It works fine when I first load the document. However when I load a new set of images with updateContent() it sets the #content div height to 0. Ideally I'd like to be able to load a new set of images and isotope would initialize as it normally does and height should be an appropriate value for all of the images to fit inside the #content div.
The following part needs to be fixed and this is what I have so far...
$(allCards).remove(); // remove all previous images
$("#content").html( data ); // load new images
$('#content').isotope( 'reLayout', callback ); // <- reinit isotope to manage the new images
Basically I'd like it to remove all previous images and load all the new images in data and isotope would work with the new images.
I solved the issue by prepending. I'm putting this up so people don't have to suffer like I did.
$("#content").isotope( 'remove', $(".element"), function(){
$("#content").prepend($(data)).isotope( 'reloadItems' ).isotope({ sortBy: 'original-order' });
});
Have a look at http://isotope.metafizzy.co/docs/methods.html
Firstly make sure the markup your appending to $("#content") has the .element class.
If they don't have it, you'll need to append it to them before attempting to insert them into the isotope container.
Secondly try using the inbuilt method for removing appending objects
.isotope( 'addItems', $items, callback )
In your case it would be:
$("#content").isotope( 'remove', $(".element"), function(){
$("#content").isotope( 'addItems', $(data), function(){
$("#content").isotope( 'reLayout' callback );
});
});
You probably do not need to utilize the callbacks from 'remove' and 'addItems', but without a jsfiddle example it's hard to tell.
I would like to load some content using AJAX and Shadowbox
Basically I would like the user to goto a page in case javascript is off. So this is what I want to do :-
1) Cancel the click event i.e the User must not go to a different page.
2) Load content using ajax function in jQuery
3) Show the content inside a shadow box
My code works ok until loading content using ajax but the shadowbox is not displayed and the URL is gettin refreshed i guess, everything goes blank.
jQuery(document).ready(function($){
// rounded corners
$('img').addClass('corner iradius16');
DD_roundies.addRule('#nav li a',4,true);
DD_roundies.addRule('.grid',6,true);
$('h2 a').bind('click', function() {
var id = $(this).attr('id');
$.ajax({
url: "/ajax-post.php?p="+id,
success: function(data){
Shadowbox.open({
content: data,
player: "html",
height: 350,
width: 350
});
}
});
return false;
});
UPDATE 1
tried this code, and as soon as the shadowbox loads, the document gets reloaded and white.
Shadowbox.init({
skipSetup: true,
players: ["html"]
});
// LOAD
jQuery(document).ready(function($){
// rounded corners
$('img').addClass('corner iradius16');
DD_roundies.addRule('#nav li a',4,true);
DD_roundies.addRule('.grid',6,true);
$('.post h2 a').bind('click', function() {
var id = $(this).attr('id');
$.ajax({
url: "<?php bloginfo( 'template_directory'); ?>/ajax-post.php?p="+id,
success: function(data){
show_box(data);
}
});
return false;
});
});
//shadowbox
function show_box(html) {
Shadowbox.open({
content: html,
player: "html",
height: 350,
width: 350
});
}
UPDATE 2
Okay got the prbolem, the html that I am getting via ajax has some javascript in it and that is the reason for the page reload.
Why is this happening ? Any ideas ?
Since you're not getting any JavaScript errors try debugging by breaking it down:
Ensure that the binding to and overriding of the click event is functioning properly:
$('h2 a').bind('click', function() {
alert('click even fired');
return false;
});
If that works, check the data that your ajax request is returning:
$('h2 a').bind('click', function() {
var id = $(this).attr('id');
$.ajax({
url: "ajax-post.php?p="+id,
success: function(data){
alert(data);
}
});
return false;
});
The code looks like it should work, so I'm guessing there's either something wrong elsewhere (in which case the first test will likely fail) or you're getting some really odd data returned.
Need to run
Shadowbox.setup('h2 a');
This will reinitialise and bind it to any ajax loaded content