Develop Reference

Vertical Scrolling Issues on Mobile

So I'm having scrolling issues on my site when viewing on mobile browsers. For some reason, scrolling is sometimes stopped or frozen and there is a weird vertical scrolling bar line that appears randomly in the middle of the browser. I have no idea what this could be, I figure it's a js issue between the menu and the project container but not sure if it may be css overflow issue. The link is johnavent.net/projects if you want to view yourself.
Here's my JS for the menu:
var isLateralNavAnimating = false;
//open/close lateral navigation
$('.cd-nav-trigger').on('click', function(event){
event.preventDefault();
//stop if nav animation is running
if( !isLateralNavAnimating ) {
if($(this).parents('.csstransitions').length > 0 ) isLateralNavAnimating = true;
$('body').toggleClass('navigation-is-open');
$('.cd-navigation-wrapper').one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend', function(){
//animation is over
isLateralNavAnimating = false;
});
}
});
And here it is for my project contianers:
$('.cd-single-project').bgLoaded({
afterLoaded : function(){
showCaption($('.projects-container li').eq(0));
}
});
$('.cd-single-project').on('click', function(){
var selectedProject = $(this),
toggle = !selectedProject.hasClass('is-full-width');
if(toggle) toggleProject($(this), $('.projects-container'), toggle);
});
$('.projects-container .cd-close').on('click', function(){
toggleProject($('.is-full-width'), $('.projects-container'), false);
});
$('.projects-container .cd-scroll').on('click', function(){
$('.projects-container').animate({'scrollTop':$(window).height()}, 500);
});
$('.projects-container').on('scroll', function(){
window.requestAnimationFrame(changeOpacity);
});
function toggleProject(project, container, bool) {
if(bool) {
container.addClass('project-is-open');
project.addClass('is-full-width').siblings('li').removeClass('is-loaded');
} else {
var mq = window.getComputedStyle(document.querySelector('.projects-container'), '::before').getPropertyValue('content').replace(/"/g, "").replace(/'/g, ""),
delay = ( mq == 'mobile' ) ? 100 : 0;
container.removeClass('project-is-open');
project.animate({opacity: 0}, 800, function(){
project.removeClass('is-loaded');
$('.projects-container').find('.cd-scroll').attr('style', '');
setTimeout(function(){
project.attr('style', '').removeClass('is-full-width').find('.cd-title').attr('style', '');
}, delay);
setTimeout(function(){
showCaption($('.projects-container li').eq(0));
}, 300);
});
}
}
function changeOpacity(){
var newOpacity = 1- ($('.projects-container').scrollTop())/300;
$('.projects-container .cd-scroll').css('opacity', newOpacity);
$('.is-full-width .cd-title').css('opacity', newOpacity);
$('.is-full-width').hide().show(0);
}
function showCaption(project) {
if(project.length > 0 ) {
setTimeout(function(){
project.addClass('is-loaded');
showCaption(project.next());
}, 150);
}
}
});
(function($){
$.fn.bgLoaded = function(custom) {
var self = this;
var defaults = {
afterLoaded : function(){
this.addClass('bg-loaded');
}
};
var settings = $.extend({}, defaults, custom);
self.each(function(){
var $this = $(this),
bgImgs = window.getComputedStyle($this.get(0), '::before').getPropertyValue('content').replace(/'/g, "").replace(/"/g, "").split(', ');
$this.data('loaded-count',0);
$.each( bgImgs, function(key, value){
var img = value.replace(/^url\(["']?/, '').replace(/["']?\)$/, '');
$('<img/>').attr('src', img).load(function() {
$(this).remove();
$this.data('loaded-count',$this.data('loaded-count')+1);
if ($this.data('loaded-count') >= bgImgs.length) {
settings.afterLoaded.call($this);
}
});
});
});
};
Will post CSS if the issue does not lie within the JS but everything is what you would think and how it behaves on desktop.

Animation ( bar fills up over time ) with Jquery (Suggestion)

I would like to replicate the same functionality as at ign.com, where the indicator bar fills up over time. I got it working but I got some sync issues after a while. So i'm open to suggestions to do it from scratch (I'm beginner with all this animation stuff).
This is the code.
function GoProgressBar() {
var $lineStatus = $('.featured-articles-line-status');
$lineStatus.css('width', '0px');
$lineStatus.animate({ width: '694px' }, 12000, 'linear', GoProgressBar);
};
function GoOverlay(width, isLast, currentWidth) {
var $overlayLine = $('.status-overlay');
if (isLast) {
$overlayLine.css('width', '0px');
return;
}
if (currentWidth) {
$overlayLine.css('width', currentWidth);
$overlayLine.animate({ width: width }, 700);
} else {
$overlayLine.css('width', '0px');
$overlayLine.animate({ width: width }, 700);
}
};
function ShowNextElement() {
var $elements = $('.element'),
$overlayLine = $('.status-overlay'),
$liElements = $('#elements li'),
width;
if (currentElement === elements[elements.length - 1]) {
currentWidth = $overlayLine.width() + 'px',
width = currentWidth + $($liElements[(elements.length - 1)]).outerWidth() + 'px';
GoOverlay(width, true, currentWidth);
currentElement = elements[0];
$elements.hide();
$(currentElement).fadeIn(1000);
return;
}
i = elements.indexOf(currentElement) + 1;
var currentTab = $liElements[(i - 1)],
currentWidth = $overlayLine.width();
if (currentWidth) {
width = currentWidth + $(currentTab).outerWidth() + 'px';
GoOverlay(width, false, currentWidth);
} else {
width = $(currentTab).outerWidth() + 'px';
GoOverlay(width, false, false);
}
currentElement = elements[i];
$elements.hide();
$(currentElement).fadeIn(1000);
}
Thanks!

http://jqueryui.com/progressbar/
You could try this..
There are more features in addition to this,check it out.
Might come useful :)

There are a wealth of ways in which you could do this.
You should have some kind of controller to manage the show and hide.
var Application = {
show : function() {
jQuery('.application-overlay').stop().animate({ top: 40 }, 500);
jQuery('.cf-ribbon').stop().animate({height: 1000},500);
},
hide : function() {
jQuery('.application-overlay').stop().animate({ top: -1200 }, 500);
jQuery('.cf-ribbon').stop().animate({height: 200},500);
}
};
Then you have your triggers : Application.show();
jQuery(document).ready(function() {
jQuery('.cf-speakers .span2 a').hover(function() {
jQuery('span',this).stop().animate({ opacity: 1.0 },100);
}, function() {
jQuery('span',this).stop().animate({ opacity: 0.0 },100);
});;
jQuery('.apply-now').click(function(e) {
Application.show();
e.stopPropagation();
e.preventDefault();
});
jQuery('body').click(function(e) {
var application = jQuery('.application-overlay');
if( application.has(e.target).length === 0)
Application.hide();
});
jQuery('.gallery a').click(function(e) {
var src = jQuery(this).attr('href');
jQuery('.main-container img').hide().attr('src', src).fadeIn('fast');
jQuery('.gallery a').each(function() {
jQuery(this).removeClass('active');
});
jQuery(this).addClass('active');
e.stopPropagation();
e.preventDefault();
});
});
Your css would of course come into play also but that can be left to you!
This should give you an example of what you need .. But you're already on the right track, sometimes there is merit in reusing other people code too you know! :)

Keep dropdown open on hover jQuery

I'm making a quick animated drop down. I have it working great when you mouseover and mouseout on the initial button. I just cant get the HTML div that drops down to "hold" when you're hovered on the dropdown itself. here is a fiddle of what I'm doing: http://jsfiddle.net/kAhNd/
here's what I'm doing in the JS:
$('.navBarClickOrHover').mouseover(function () {
var targetDropDown = $(this).attr('targetDropDown');
var targetDropDownHeight = $('#' + targetDropDown).height();
$('#' + targetDropDown).animate({
'height': '200px'
});
}).mouseout(function () {
if ($('.dropdownCont').is(':hover') || $('.navBarClickOrHover').is(':hover')) {
} else {
var targetDropDown = $(this).attr('targetDropDown');
var targetDropDownHeight = $('#' + targetDropDown).height();
$('#' + targetDropDown).animate({
'height': '0px'
});
}
});
It works, but the element doesn't stay dropped down when you have your mouse over it. I added in
if ($('.dropdownCont').is(':hover') || $('.navBarClickOrHover').is(':hover')) {
}
to try to make it do nothing when you're hovered over '.dropdownCont'.
Having a hard time explaining it. I'm sorry, I hope I make sense. Any help would be awesome! here's my Fiddle: http://jsfiddle.net/kAhNd/

Here is your code transformed http://jsfiddle.net/krasimir/kAhNd/3/
var button = $('.navBarClickOrHover');
var isItOverTheDropdown = false;
var showDropDown = function() {
var targetDropDown = $('#' + button.attr('targetDropDown'));
var targetDropDownHeight = targetDropDown.height();
targetDropDown.animate({
'height': '200px'
});
targetDropDown.off("mouseenter").on("mouseenter", function() {
isItOverTheDropdown = true;
});
targetDropDown.off("mouseleave").on("mouseleave", function() {
isItOverTheDropdown = false;
hideDropDown();
});
}
var hideDropDown = function() {
var targetDropDown = $('#' + button.attr('targetDropDown'));
var targetDropDownHeight = targetDropDown.height();
targetDropDown.animate({
'height': '0px'
});
}
$('.navBarClickOrHover').mouseover(function () {
showDropDown();
}).mouseout(function () {
setTimeout(function() {
!isItOverTheDropdown ? hideDropDown : '';
}, 500);
});
I guess that this is what you want to achieve.

how to include .ready() function in .load()

On my site, I am using a jquery script to make my site dynamic ( most part of the site is charged once, and while you navigates, only the main content will change). It uses .load() . Unfortunatly this function tends to negate any javascript/Jquery code that is called by the container which is dynamic. So I have to call them during the load .
Here is the code of script:
$(function () {
if (Modernizr.history) {
var newHash = "",
$mainContent = $("#main-content"),
$pageWrap = $("#page-wrap"),
baseHeight = 0,
$el;
$pageWrap.height($pageWrap.height());
baseHeight = $pageWrap.height() - $mainContent.height();
$("nav").delegate("a", "click", function () {
_link = $(this).attr("href");
history.pushState(null, null, _link);
loadContent(_link);
return false;
});
function loadContent(href) {
$mainContent
.find("#guts")
.fadeOut(200, function () {
$mainContent.hide().load(href + " #guts", function () {
// I call the script here.
$.getScript('tablecloth/tablecloth.js', function () {
tablecloth();
});
$.getScript('js/domtab.js', function () {
domtab.init();
});
// This one is the one which doesn't work.
$.getScript('js/onReady.js', function () {
});
$mainContent.fadeIn(200, function () {
$pageWrap.animate({
height: baseHeight + $mainContent.height() + "px"
});
});
$("nav a").removeClass("current");
console.log(href);
$("nav a[href$=" + href + "]").addClass("current");
});
});
}
$(window).bind('popstate', function () {
_link = location.pathname.replace(/^.*[\\\/]/, ''); //get filename only
loadContent(_link);
});
} // otherwise, history is not supported, so nothing fancy here.
});
And I have a script for one page, that uses .click() function, onReady.js :
$(document).ready( function() {
var maxHeight = document.getElementById("flip1").scrollHeight;
var maxHeight2 = document.getElementById("fli1A").scrollHeight;
var parent = document.getElementById("flip-container");
var DivContainerHeight = $('#text1').scrollHeight;
$("#text_var").html(maxHeight2);
//alert(DivContainerHeight);
//document.getElementById('tooltip6').style.display = 'block';
document.getElementById('global').style.height = DivContainerHeight + 'px';
//$("#flip-tabs").css({ height: maxHeight+'px' });
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1300px'
});
$('#fl1A').on("click", function (e) {
$("#fli1A").show();
var maxHeight2 = document.getElementById("fli1A").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
$('#fl1B').on("click", function (e) {
$("#fli1B").show();
var maxHeight2 = document.getElementById("fli1B").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
$('#fl2A').on("click", function (e) {
$("#fli2A").show();
var maxHeight2 = document.getElementById("fli2A").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
$('#fl2B').on("click", function (e) {
$("#fli2B").show();
var maxHeight2 = document.getElementById("fli2B").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
$('#fl3A').on("click", function (e) {
$("#fli3A").show();
var maxHeight2 = document.getElementById("fli3A").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
$('#fl3B').on("click", function (e) {
$("#fli3B").show();
var maxHeight2 = document.getElementById("fli3B").scrollHeight;
//alert("New height: " + maxHeight2);
$("#text_var").html(maxHeight2);
$("#flip-tabs").css({
'height': maxHeight2 + 'px'
//'height': '1000px'
});
});
});
The code will work fine when I load directly for the first time, the page where I uses this code ( A.html), but if I load another page and then go to A.html again then it won't work anymore. It is as if the getscript will work the first time I load a page. Although tablcloth() and domtab() work fine for each page.
In the head of each page I have
<script type ="text/javascript" src="js/onReady.js"></script>
But I don't think it has any purpose.
Another question is it possible to make the script onReady load only when I load the page A.html ?

Instead of $(document).ready you could use function pageLoad(){}.
It's automatically called by the ScriptManager on a page, even on a postback.
I think that's your issue here, your changes doesn't get affected on a postback.
Hope this helps you.
Cheers

You can add events for dynamically created content in the doc ready function with jQuery's .on() method http://api.jquery.com/on/ this will prevent you from having to attach listeners on every load function call

I found the solution I remplaced the codes onReady.js by this :
this.tabHeight = function () {
codes......
};
window.onload = tabHeight;
And in the .load() I call it this way :
$.getScript('js/onReady.js', function () {
tabHeight();
});
In fact I just copied the way tablecloth did it.

jQuery issues (Safari/Chrome) with smooth scroll

I'm building a site which is a single scroll with smoothscrolls and some more JS for some feature across the page.
On Google Chrome, this seems to work for me with no issues at all; although a few friends have mixed results. On Safari, there seems to be a few issues but, most of all, none of the smooth scrolling seems to work (most of the JS) until you are past the 'landing slide'
I have tried to debug this and check the web inspector console, but no errors are appearing.
Can anyone help?
My JS code is here: http://goo.gl/rcvJe and the site I am building here: http://goo.gl/0vQUe
Many thanks in advance,
R
// Resizing each slide height per height of window
$(document).ready(function() {
if ( $(window).width() > 700 ) {
$(document).ready(function() {
var height = $(window).outerHeight() + 50;
$('.each-slide').outerHeight(height);
});
$(window).resize(function() {
var height = $(window).outerHeight() + 50;
$('.each-slide').outerHeight(height);
});
}
if ( $(window).width() > 700 ) {
$(document).ready(function() {
var height = $(window).outerHeight() - 199;
$('.first-slide').outerHeight(height);
});
$(window).resize(function() {
var height = $(window).outerHeight() - 199;
$('.first-slide').outerHeight(height);
});
}
});
// Initialise the smooth scrolling on anchors
$(document).ready(function() {
$('a.smooth-scroll-no-offset').smoothScroll({
easing: 'swing',
speed: 500
});
});
$(document).ready(function() {
$('a.smooth-scroll').smoothScroll({
easing: 'swing',
speed: 500,
offset: 100
});
});
// Fitvid
$(document).ready(function(){
$('.video-container').fitVids();
});
// Remove arrow hint when near bottom
/*$(window).scroll(function() {
if ($(window).scrollTop() + $(window).height() > $(document).height() - 700 ) {
$('.continue-down').fadeOut();
}
else {
$('.continue-down').fadeIn();
}
});*/
// Ajax subscribe form
$(function () {
$('#subForm').submit(function (e) {
e.preventDefault();
$.getJSON(
this.action + "?callback=?",
$(this).serialize(),
function (data) {
if (data.Status === 400) {
alert("Error: " + data.Message);
} else {
$('#subForm input[type=submit]').animate({opacity:0}).delay(2000).animate({opacity:1});
$('.confirmation-message').animate({opacity:1}).delay(2000).animate({opacity:0});;
$('#subForm').find('input[type=text]').val('');
}
});
});
});
// Some simple colours on hovers
$(document).ready(function() {
$('.menu-navigation-desktop ul li:nth-child(2) a').hover(function()
{ $('.site-intro a:nth-of-type(1)').css({'color':'#69B6D7','border-bottom':'1px solid'}); },
function () { $('.site-intro a:nth-of-type(1)').css({'color':'#333333','border-bottom':'0'}); }
);
$('.menu-navigation-desktop ul li:nth-child(3) a').hover(function()
{ $('.site-intro a:nth-of-type(2)').css({'color':'#A396C0','border-bottom':'1px solid'}); },
function () { $('.site-intro a:nth-of-type(2)').css({'color':'#333333','border-bottom':'0'}); }
);
$('.menu-navigation-desktop ul li:nth-child(4) a').hover(function()
{ $('.site-intro a:nth-of-type(3)').css({'color':'#777777','border-bottom':'1px solid'}); },
function () { $('.site-intro a:nth-of-type(3)').css({'color':'#333333','border-bottom':'0'}); }
);
});
// Contact form styles and triggers
$(document).ready(function(){
var $c=$('.menu-navigation-desktop ul li:nth-child(5) a').css('background-color');
$('.contact-form').css('background-color',$c);
$('.menu-navigation-desktop li a.contact-form-action').click(function() {
$('.contact-form').toggle();
});
});
// Animations
$(document).ready(function() {
$('.map-icon').addClass('animated pulse');
});
// Mobile navigation
$(document).ready(function() {
$('.navigation-trigger').click(function() {
$('.menu-navigation-mobile ul').slideToggle('fast');
$('span', this).text($('span', this).text() == 'navigatedown' ? 'navigateup' : 'navigatedown');
});
});
// Design process slider
$(document).ready(function() {
var unslider = $('.design-process-slider').unslider({
delay: false,
keys: true,
dots: true,
fluid: true
});
});
$(document).ready(function() {
$('.design-process-slider-arrow').click(function(event) {
event.preventDefault();
if ($(this).hasClass('next')) {
unslider.data('unslider')['next']();
} else {
unslider.data('unslider')['prev']();
};
});
});
// Sustainability slider
$(document).ready(function() {
var unslider2 = $('.sustainability-slider').unslider({
delay: false,
keys: true,
dots: false,
fluid: true
});
});
$(document).ready(function() {
$('.sustainability-slider-arrow').click(function(event) {
event.preventDefault();
if ($(this).hasClass('next')) {
unslider2.data('unslider')['next']();
} else {
unslider2.data('unslider')['prev']();
};
});
});
// Testimonial slider
$(document).ready(function() {
var unslider3 = $('.testimonial-slider').unslider({
delay: false,
keys: true,
dots: false,
fluid: true
});
});
$(document).ready(function() {
$('.testimonial-slider-arrow').click(function(event) {
event.preventDefault();
if ($(this).hasClass('next')) {
unslider3.data('unslider')['next']();
} else {
unslider3.data('unslider')['prev']();
};
});
});
// Map tip hovers
$(document).ready(function() {
$('.map-icon.one').hover(
function () {
$('.map-tip.one').fadeIn();
},
function () {
$('.map-tip.one').fadeOut();
}
);
$('.map-icon.two').hover(
function () {
$('.map-tip.two').fadeIn();
},
function () {
$('.map-tip.two').fadeOut();
}
);
$('.map-icon.three').hover(
function () {
$('.map-tip.three').fadeIn();
},
function () {
$('.map-tip.three').fadeOut();
}
);
$('.map-icon.four').hover(
function () {
$('.map-tip.four').fadeIn();
},
function () {
$('.map-tip.four').fadeOut();
}
);
});
// Testimonial circle cycles
$(document).ready(function() {
$('.testimonial-container').cycle();
});
//
$(document).ready(function() {
$('.menu-navigation-desktop ul li').click(function() {
$('.menu-navigation-desktop ul li').removeClass('active-slide');
$(this).addClass('active-slide');
});
});
$(document).ready(function() {
var sections = $('.each-slide-section-container'),
links = $('.menu-navigation-desktop ul li a'),
lis = $('.menu-navigation-desktop ul li');
$(window).scroll(function() {
var currentPosition = $(this).scrollTop();
links.removeClass('selected');
lis.removeClass('active-slide');
sections.each(function() {
var top = $(this).offset().top,
bottom = top + $(this).height();
if (currentPosition >= top && currentPosition <= bottom) {
var link = $('a[href="#' + this.id + '"]');
link.addClass('selected');
link.parent().addClass('active-slide');
}
});
});
});
$(document).ready(function() {
$('.each-slide .design-spread-container .design-spread-element').hover(
function () {
$(this).animate({
opacity: 1
})
},
function () {
$(this).animate({
opacity: 0
})
}
);
});

This issue with smoothScroll solved my problem.
https://github.com/kswedberg/jquery-smooth-scroll/issues/29