Cloning content, appending and prepending

Cloning content, appending and prepending - javascript

I am trying to built an infinite scroll both upwards and downwards, using the isotope plugin.
But I'm stuck yet again after getting some help here on stackoverflow. Unfortunately the content only gets cloned once, but my intention is to clone and append/prepend it every time as soon as the user reaches the bottom or the top of the page.
I'm new to jQuery and I would really appreciate if you could help me debug it.
http://jsfiddle.net/sqJqr/7/
$(document).ready(function() {
var $newElements = $(".isotope").first().children().clone();
$(window).scroll(function() {
if ( $(window).scrollTop() >= ($('body').height() - $(window).height()) ) {
$(".isotope").append( $newElements ).isotope( 'appended', $newElements );
$isotope = $(".isotope").first().children().clone();
}
else if ( $(window).scrollTop() == 1 ) {
$(".isotope").prepend( $newElements ).isotope('reloadItems').isotope({ sortBy: 'original-order' });
$isotope = $(".isotope").first().children().clone();
}
return false;
});
});

It sounds like you are trying to do an infinite scroll. The isotope plugin is interoperable with the infinite scroll plugin so you shouldn't have a problem. Here is an example using both from this page:
$(function(){
var $container = $('#container');
$container.isotope({
itemSelector : '.element'
});
$container.infinitescroll({
navSelector : '#page_nav', // selector for the paged navigation
nextSelector : '#page_nav a', // selector for the NEXT link (to page 2)
itemSelector : '.element', // selector for all items you'll retrieve
loading: {
finishedMsg: 'No more pages to load.',
img: 'http://i.imgur.com/qkKy8.gif'
}
},
// call Isotope as a callback
function( newElements ) {
$container.isotope( 'appended', $( newElements ) );
}
);
});

Related

How to run masonry only after all html5 videos are loaded with infinitescroll?

masonry infinite scroll append html5 videos overlapping
i am currently using imagesLoaded library which checks whether images are loaded then calls masonry.
But it was not working with html5 video tag, because of this videos gets overlapped on one another.
so i changed calling masonry from document.ready to window.load and removed call to imagesLoaded on initial loading i.e.
from this
$(document).ready(function(){
var $container = $('#media');
// layout Masonry again after all images have loaded
$container.imagesLoaded( function() {
$container.masonry({
"columnWidth": "." + "col-sm-2",
itemSelector: '.item',
gutter: 0,
});
$('.item').css('opacity', '1.0');
});
});
to this
$(window).load(function(){
var $container = $('#media');
$container.masonry({
"columnWidth": "." + "col-sm-2",
itemSelector: '.item',
gutter: 0,
});
$('.item').css('opacity', '1.0');
});
now html5 videos in masonry are not overlapping, and are rendering perfectly on page's first load i.e. initial load,
but as i am also using infinite-scroll which adds more images/videos on scrolling page down, so when new videos are being added to container they are being overlapped , this behavior is caused by early running of masonry before all the video elements are being loaded as imagesloaded cant check the videos loaded.
this is the code.
$(document).ready(function(){
var $container = $('#media');
var no_more_media = "<?= Lang::get('lang.no_more_to_load') ?>";
var loading_more_media = "<?= Lang::get('lang.loading_more_media') ?>";
$container.imagesLoaded(function(){
$container.masonry();
});
$container.infinitescroll({
loading: {
finished: undefined,
finishedMsg: "<p>" + no_more_media + "</p>",
img: "data:image/gif;base64,R0lGODlhAQABAHAAACH5BAUAAAAALAAAAAABAAEAAAICRAEAOw==",
msg: null,
msgText: "<div class='loading'><i></i><i></i><i></i></div><p>" + loading_more_media + "</p>",
selector: null,
speed: 'fast',
start: undefined,
},
navSelector : "ul.pagination",
// selector for the paged navigation (it will be hidden)
nextSelector : "ul.pagination a:first",
// selector for the NEXT link (to page 2)
itemSelector : ".container #media .item",
animate: false,
bufferPx: 160,
},
function( newElements ) {
// hide new items while they are loading
//var $newElems =
$.each($(newElements), function(index, value){
item_click_events($(value));
});
$( newElements ).css({ opacity: 0 });
$(newElements).imagesLoaded(function(){
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
}
);
});
});
i have tried changing document.ready to window.load in above code too, and removing running imagesloaded altogether, but its not working with infinitescroll.,
e.g. modified code
$(window).load(function(){
var $container = $('#media');
var no_more_media = "<?= Lang::get('lang.no_more_to_load') ?>";
var loading_more_media = "<?= Lang::get('lang.loading_more_media') ?>";
$container.masonry();
$container.infinitescroll({
loading: {
finished: undefined,
finishedMsg: "<p>" + no_more_media + "</p>",
img: "data:image/gif;base64,R0lGODlhAQABAHAAACH5BAUAAAAALAAAAAABAAEAAAICRAEAOw==",
msg: null,
msgText: "<div class='loading'><i></i><i></i><i></i></div><p>" + loading_more_media + "</p>",
selector: null,
speed: 'fast',
start: undefined,
},
navSelector : "ul.pagination",
// selector for the paged navigation (it will be hidden)
nextSelector : "ul.pagination a:first",
// selector for the NEXT link (to page 2)
itemSelector : ".container #media .item",
animate: false,
bufferPx: 160,
},
function( newElements ) {
// hide new items while they are loading
//var $newElems =
$.each($(newElements), function(index, value){
item_click_events($(value));
});
$( newElements ).css({ opacity: 0 });
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
});
});
there is another way i can solve this overlapping issue, by specifying video width and height, but as its responsive design, specifying video width and height breaks the responsiveness.
so my question is ,
is there any js library simmilar to imagesloaded which makes sure all videos are loaded and then i can call to masonry ?
or how can i make sure the videos wont get overlapped on infinitescroll ?
update 1 :
i have tried many techniques, for infinitescroll
$(newElements).load(function(){
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
});
doesnt loads new content after pagescroll.
$(window).load(function(){
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
});
doesnt loads new content after pagescroll.
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
overlaps video content
so i have came up with calling infinite-scroll early and slowing down the container.masonry by 3 seconds which is working perfectly for now., but still waiting for proper solution.
e.g.
bufferPx: 700,
setTimeout(function(){
var $newElems = $( newElements );
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true);
}, 3000);
above is delaying running masonry by 3 seconds.
i tried looking for something like window.load for div, but there is none, so my best option is check whether all the videos and images are loaded and then call masonry after calling infinite-scroll
added working demo http://plnkr.co/edit/46YzHBJ7eFAXfsPqZB1q
you can see the issue, by clicking run and scrolling down.

Looks like you can fix it by waiting for the loadeddata event of the video's
Here is the basic idea:
function waitForvidLoad(vids, callback) {
/* if no videos i.e. mobile mode only gifs and jpgs then call callback else masonry breaks.*/
if(vids.length === 0){
callback();
}
var vidsLoaded = 0;
vids.on('loadeddata', function() {
vidsLoaded++;
if (vids.length === vidsLoaded) {
callback();
}
});
}
.
var $container = $('#container');
var vids = $('#container').find('video');
waitForvidLoad(vids, function() {
$container.imagesLoaded(function() {
$container.masonry({
itemSelector: '.box',
columnWidth: 100
});
});
Working plunker here:
http://plnkr.co/edit/jXJ7oFxF3sFWBAJuBqdQ?p=preview

changing $ sign with jQuery

Well i'm trying to make Masonry work with infinite-scroll, and i found the official appended method (http://desandro.github.io/masonry/demos/infinite-scroll.html) and tried to make it work on my code. but i needed to change some of the $ to jQuery and now it's working as masonry but the infinte scroll still not working, and i'm wondering if i forgot a dollar sign to change to jQuery from my code, Please help me
<script >
jQuery(function(){
var $container = jQuery('ul.products');
$container.imagesLoaded(function(){
$container.masonry({
itemSelector: 'li.product',
columnWidth : 295,
isFitWidth: true,
gutterWidth : 2
});
});
$container.infinitescroll({
navSelector : '#page-nav-woo', // selector for the paged navigation
nextSelector : '.next', // selector for the NEXT link (to page 2)
itemSelector : 'li.product', // 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 = jQuery( 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 );
});
}
);
});
</script>

Ok the solution for my problem is like this:
1.i installed the wp-plugin
2.for callback section added:
var $newElems = jQuery( 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.append( $newElems ).masonry( 'appended', $newElems, true );
});
3.behavior: Masonry
And it works like a charm! Thanks all!

Alternatively you can wrap your script in a closure:
(function($) {
// i can use $ instead of jQuery
} (jQuery));
or
(function(jQuery) {
// i can use jQuery instead of $
} ($));

scrolling position keeps going to top without me telling it to

I have a function that loads new items when I get close to the bottom of the page. It works great, the only issue is that when the new items load, then the scrolling position goes all the way back to the top, which is very messy and not what I want. Here is the function:
function loader(url) {
$.get(url, function(data) {
$newPosts = $(data).filter(function(){
return this.id === 'posts';
}).children();
$newPosts.hide();
$wall.masonry('destroy');
$('#posts').append($newPosts);
$newPosts.each(function(){
$(this).fadeIn('slow');
});
$wall.masonry({
itemSelector: '.entry, .entry_photo',
isAnimated : false
});
}).error(function(url) {
alert('error');
});
};
Jsfiddle
So as you can see, it jumps right back to the top and looks jagged. How can I prevent that? And why does it happen?

Seems to me that the call to destroy in masonry is the root of the issues here.
Use the appended method
$wall
.append( $newPosts )
.masonry( 'appended', $newPosts );
.masonry( 'layout' );

Replace your scroll function with this scripts and see.
DEMO http://jsfiddle.net/yeyene/ajjaz/7/
$(window).scroll(function(){
if ($('#posts').outerHeight() - $('body').scrollTop() - 420 <= 0) {
loader(site);
$('html, body').animate({ scrollTop: $(this).scrollTop() }, 'fast');
page += 1;
}
});

Masonry - Rails integration issue

How to catch "GET" parameter of masonry infinite scrolling for show number of page in url address.
JS:
$(function(){
var $container = $('#masonry-container');
$container.imagesLoaded(function(){
$container.masonry({
itemSelector: '.box',
columnWidth: 100
});
});
$container.infinitescroll({
navSelector : '#page-nav', // selector for the paged navigation
nextSelector : '#page-nav a', // selector for the NEXT link (to page 2)
itemSelector : '.box', // 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 );
});
}
);
});
How to find
vk_posts?page=2
and save to var.
After scrolling I have localhost:3000/vk_posts in all loaded pages. Masonry deletes selector $(".pagination a") and I cant to find href of this selector.

Trigger infinitescroll manually

I am using the following code to trigger infinitescroll on isotope masonry, however how do I use the "Click to load more posts" instead, "the manual trigger". I tried implementing from solutions on the internet but they do not work for me. Thanks.
/*--------------------------------------------------------------------------------*/
/* infinitescroll
/*--------------------------------------------------------------------------------*/
jQuery(document).ready(function($) {
var $container = $('.masonry');
$container.imagesLoaded( function(){
$container.isotope({
itemSelector : '.item'
});
});
$container.infinitescroll({
// selector for the paged navigation
navSelector : '.post-nav',
// selector for the NEXT link (to page 2)
nextSelector : '.post-nav .prev-post a',
// selector for all items you'll retrieve
itemSelector : '.item',
loading: {
finishedMsg: 'No more pages to load.',
img: 'http://i.imgur.com/qkKy8.gif'
}
},
function( newElements ) {
var $newElems = $( newElements ).css({ opacity: 0 });
$newElems.imagesLoaded(function() {
$newElems.animate({ opacity: 1 });
$container.isotope( 'appended', $( newElements ) );
$container.isotope('reLayout');
});
});
});

Assuming that you're using this plugin, the following should work to manually trigger a retrieve:
$container.infinitescroll('retrieve');

Develop Reference

JavaScript is the programming language of the Web.

Cloning content, appending and prepending - javascript

Related

How to run masonry only after all html5 videos are loaded with infinitescroll?

changing $ sign with jQuery

scrolling position keeps going to top without me telling it to

Masonry - Rails integration issue

Trigger infinitescroll manually

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