I have this script that would play video when it reaches certain position ( on scroll ), but the problem is if you pause it and continue scrolling it would start playing again... I tried to do "one" on scroll function but that would not work since it would allow it to check for scroll only once which would be only on top of the screen...
$(window).scroll(function() {
$('.video-panel').each(function(){
var imagePos = $(this).offset().top;
var topOfWindow = $(window).scrollTop();
var myVideo = document.getElementById("lunar-video");
if (imagePos < topOfWindow+$(window).height()/1.4) {
$(".video-panel video").fadeIn();
$("#lunar-video").prop('play');
console.log('blejacki');
// $(".video-panel").addClass('blejacki');
}
});
});
Just add a class to the element and check if that class already exists.
if (imagePos < topOfWindow+$(window).height()/1.4) {
$(".video-panel video").fadeIn();
var $lv = $('#lunar-video');
if(!$lv.hasClass('is-playing')){
$lv.prop('play');
$lv.addClass('is-playing');
}
}
Related
I'm currently making an overlay that covers a sticky top bar when the user has scrolled beyond a certain point (down) and disappears when scrolling back up. However, I'd like to be able to scroll for at least 50px before the code is executed (something like a gap before the overlay is triggered).
$(function() {
var prevScroll = $(document).scrollTop(); //initial position
$(window).scroll(function() {
var newScroll = $(document).scrollTop(); //position from top after scrolling
if(newScroll > prevScroll) { // checks if the user has scrolled up or down
var fromNew = $(document).scrollTop(); // holds value to compare with the position + gap amount
if (fromNew > newScroll + 50) { //checks to see if scrolled for 50px
$("#stick-start").fadeIn("fast");
prevScroll = newScroll + 50; //initial position + scrolled amount
};
} else {
var fromNew = $(document).scrollTop();
if (fromNew > newScroll - 50) {
if ($("#stick-start").hasClass("is-stuck")) {
$("#stick-start").fadeOut("fast");
prevScroll = newScroll - 50;
};
};
};
});
});
The condition that checks whether you're scrolling up or down works. But as it is now, the overlay just keeps fading in and out repeatedly. How do I make it so that you have to scroll at least 50px before anything happens ?
I think this should get you where you're going.
var $document = $(document);
$(window).scroll(function() {
if ($document.scrollTop() >= 50) {
$("#stick-start").fadeIn("fast");
} else {
$("#stick-start").fadeOut("fast");
}
});
EDIT: had an error, should be good now.
$(window).scroll(function() {
if ($(this).scrollTop() >= 50) {
$("#stick-start").fadeIn();
} else {
$("#stick-start").fadeOut();
}
});
I'm creating a page with sticky nav and it doesn't stick to the top immediately after the header image moves away (it's less than full page size). It only sticks after the size of one full page image has passed. The text inside the nav bar also moves after it sticks.
You can view the code here: https://jsfiddle.net/zinctan/7a436ojz/
This is my javascript:
$(function() {
// when we scroll down the window, do this:
$(window).scroll(function(){
//Getting the scroll percentage
var windowHeight = $(window).height();
var scrollHeight = $(window).scrollTop();
var scrollPercentage = (scrollHeight / windowHeight);
console.log(scrollPercentage);
// if we have scrolled past 200, add the alternate class to nav bar
if(scrollPercentage > 1) {
$('.navHighlighter').addClass('scrolling');
} else {
$('.navHighlighter').removeClass('scrolling');
}
});
$('a[href*=#]:not([href=#])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top - 80
}, 1000);
return false;
}
}
}); // code courtesy of CSS-Tricks
// apply the class of nav-active to the current nav link
$('a').on('click', function(e) {
e.preventDefault();
$('li.nav-active').removeClass('nav-active');
$(this).parent('li').addClass('nav-active');
});
// get an array of 'href' of each a tag
var navLink = $('ul.navHighlighter a');
console.log(navLink);
var aArray = [];
for(var i = 0; i < navLink.length; i++) {
console.log(i);
var aChild = navLink[i];
var navArray = $(aChild).attr('href');
console.log(navArray);
aArray.push(navArray);
console.log(aArray);
var selector = aArray.join(" , ");
console.log(selector);
}
$(window).scroll(function(){
var scrollTop = $(window).scrollTop();
var tops = [];
$(selector).each(function(){
var top = $(this).position().top - 90;
if(scrollTop > top) {
var id = $(this).attr('id');
$('.nav-active').removeClass('nav-active');
$('a[href="#'+id+'"]').parent().addClass('nav-active');
}
tops.push(top);
});
});
});
Any help would be useful! Thank you :)
First of all it is a good practice to use:
$(document).ready(function(){
});
and then write your jQuery code in that function in order to assure that your script code will run after your html web page is fully loaded.
Now, I think that that should work:
$(document).ready(function() {
var topDist = $(".navHighlighter").position(); //save the position of your navbar, better use an id for that
$(document).scroll(function () {
var scroll = $(this).scrollTop();
if (scroll > topDist.top) { //when the scrolling reaches the very top of your navbar
$('.navHighlighter').addClass('scrolling');
} else {
$('.navHighlighter').removeClass('scrolling');
}
});
*rest of your code goes here*
});
Also, add:
top:0;
width: 100%;
to your .scrolling class in order to command your navbar to start just at the top of the user's window and to cover the whole width of the web page (position:fixed creates some issues on that so you have to set the width of your element, remember that).
I hope I helped and I got your demands right. Happy coding! :)
The menu is currently set up so that when you open a page it is visible at the bottom of the page. As you scroll up the black menu panel will disappear out of view then reappear with the logo from the top.
Is there a way to reverse it so that once you scroll back up the black menu will disappear and reappear at the bottom of the page?
see website by clicking here
var distance = $('#content-div').offset().top,
$window = $(window);
var didscroll=true;
$window.scroll(function() {
if(didscroll==true){
if ( $window.scrollTop() >= distance ) {
didscroll = false;
//alert("r");
// Your div has reached the top
jQuery('.header').css({"position":"fixed","top":'-100px',"left":0});
jQuery('a.logo').css("visibility","visible");
jQuery( ".header" ).slideDown( 5000, function() {
jQuery(this).css({"top":0});
});
}
}
});
});
Remove the inline styles when you reached the breakpoint. Like this
if ( $window.scrollTop() >= distance ) {
$(".header").attr({style : ""});
$("a.logo").attr({style : ""});
}
Try this one..
var oritop = -100;
$(window).scroll(function() { //on scroll,
var scrollt = window.scrollY; //get the amount of scrolling
var elm = $(".box"); //get the box we want to make sticky
if(oritop < 0) {
oritop= elm.offset().top; //cache the original top offset
}
if(scrollt >= oritop) { //if you scrolled past it,
//make it sticky or else
}
else { //otherwise
//Do what you want to
}
});
I want scroll page content on mouse scroll.
I have 5 images in page, at a time i want to show one image per screen.
If i scroll down second image showed be shown, if i scroll up previous image should be shown. Like wise until the last image.I have tried an example but have no idea how achieve this.
JavaScript:
var winHeight = $(window).height();
var prevHeight = 0;
var scrollCount = 0;
var docHeight = $(document).height();
$(document).ready(function(){
$(window).scroll(function(e){
console.log("in scroll top");
var top = $(window).scrollTop();
console.log("top - "+top);
if(top !=0 && top != docHeight){
if(top > prevHeight){
scrollCount = scrollCount+1;
}else{
scrollCount = scrollCount-1;
}
console.log("scroll count="+scrollCount);
$(window).scrollTop(winHeight*scrollCount);
prevHeight = top;
if(scrollCount < 0){
scrollCount = 0;
}
e.preventDefault();
}
});
My example is here http://jsbin.com/iwOsiFIY/1/
Just set the margins to what you want them to be for each image in CSS. Or a workaround is adding a bunch of "p" tags in HTML without actually adding a paragraph, The first way is the best. You might also need some JavaScript for resizing.
I am trying to make a navigation, that sets the "active" class to links whenever it scrolls a specified ammount of pixels. But there is a div on the page, that get's its size based on user interaction.
This is the code for setting the active class.
$(function() {
//caches a jQuery object containing the header element
var header = $(".active");
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >=760) {
header.removeClass('active').addClass("active1");
}
else { header.removeClass('active1').addClass('active');}
});
var header1 = $("#work");
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >= 759 && scroll < 780) {
header1.removeClass('#work').addClass("active");
} else {
header1.removeClass("active").addClass('#work');
}
});
var header2 = $("#about");
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll > 779 && scroll < 1450) {
header2.removeClass('#about').addClass("active");
} else {
header2.removeClass("active").addClass('#about');
}
});
var header3 = $("#contact");
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll > 1449) {
header3.removeClass('#contact').addClass("active");
} else {
header3.removeClass("active").addClass('#contact');
}
});
});
How do I get the height of a div which has it's class set as auto, and then apply it in the code above ?
EDIT: I tried the $('#ID').height(); but it gets the height when the website is loaded, and it doesn't work after any user interacts with the div.
In basically get the height of the DIV
$('#ID').height();
it returns height.
I guess this is what you are looking for
Sample DEMO
if($("#ID").offset().top < $(window).scrollTop() + $(window).outerHeight())
If you create a fiddle possibly can do the same for you
Hope this helps, Thank you