Develop Reference

4 images are load in one scroll in sequencer

This is plugin's jquery code.in this code one image move in one scroll but my problem is i have to move 4 image one by one in one scroll in this sequencer.
and add specific time interval when one image move to another image please help me out of this problem.
Plugin Demo:https://www.jqueryscript.net/animation/jQuery-Plugin-To-Create-Image-Sequence-Animation-On-Scroll-Sequencer.html
(function($) {
$.fn.sequencer = function(options, cb) {
var self = this,
paths = [],
load = 0,
sectionHeight,
windowHeight,
currentScroll,
percentageScroll,
index;
if(options.path.substr(-1) === "/") {
options.path = options.path.substr(0, options.path.length - 1)
}
for (var i = 0; i <= options.count; i++) {
paths.push(options.path + "/" + i + "." + options.ext);
}
$("<div class='jquery-sequencer-preload'></div>").appendTo("body").css("display", "none");
$(paths).each(function() {
$("<img>").attr("src", this).load(function() {
$(this).appendTo("div.jquery-sequencer-preload");
load++;
if (load === paths.length) {
cb();
}
});
});
$(window).scroll(function() {
sectionHeight = $(self).height();
windowHeight = $(this).height();
currentScroll = $(this).scrollTop();
percentageScroll = 100 * currentScroll / (sectionHeight - windowHeight);
index = Math.round(percentageScroll / 100 * options.count);
if(index < options.count) {
$("img.sequencer").attr("src", paths[index]);
}
});
return this;
};
}(jQuery));

I think what you want here is setInterval().
You can write a function to change the image which should be pretty simple, and call that function as a parameter in setInterval().
So something along the lines of this at the end of your code:
setInterval(changeImage, 60000);
//executes the changeImage() function every 60 seconds
You can read more about setInterval() here.
I hope that helps!

jQuery curtain scroller app

I'm trying to build a curtain slider - much like what is used on the Apple site - http://www.apple.com/30-years/
http://jsfiddle.net/NYEaX/405/
I've created the following code - I need to add listeners to detect the mouse hovering over the far left/far right sides of the page - and then invoke an exponential slide.
var curtainSlider = {
invoke: function(el){
var that = this;
var list = $(el + " ul").find("li");
this.initialListWidth = list.outerWidth(true);
list
.mouseover(function() {
console.log("over");
that.expand(this);
})
.mouseout(function() {
console.log("out");
that.contract(this);
});
},
expand: function(el){
var that = this;
$(el).stop().animate({
width: that.initialListWidth*2
},400, function() {
// Animation complete.
});
},
contract: function(el){
var that = this;
$(el).stop().animate({
width: that.initialListWidth
},400, function() {
// Animation complete.
});
}
}
$(document).ready(function() {
console.log( "ready!" );
curtainSlider.invoke("#curtain");
});

**LATEST CODE - complete integration - http://jsfiddle.net/NYEaX/538/ **
I have stabilized this version of the scroller. - This curtains the images and spectrum fades them on start up. It repositions the a elements so the image is more centrally aligned.
http://jsfiddle.net/NYEaX/432/
I've separated out the code responsible for moving the slider unit, with an acceleration/deceleration. Its this part of the application I wish to focus on now.
http://jsfiddle.net/NYEaX/434/
I've tried to push the pagex variable into the animation part to help manipulate the duration of the animation. How can this be stabilized/improved on. I am finding it hard to reverse engineer the apple 30 year slider.
var curtainSlider = {
bindEvents: function(){
var that = this;
$("body").on("mousemove",function(event) {
if (event.pageX < 50) {
// animate curtain left
console.log("curtain left");
that.scroll("l", event.pageX);
}
if (event.pageX > (window.width - 50)) {
// animate curtain right
console.log("curtain right");
that.scroll("r", window.width - event.pageX);
}
});
},
scroll: function(direction, leveler){
var charge = "-";
if(direction == "r"){
charge = "+";
}
$('#curtainholder #slider').animate({
left: charge+"="+leveler
},400, function() {
// Animation complete.
});
},
invoke: function(el){
var that = this;
this.bindEvents();
}
}
$(document).ready(function() {
curtainSlider.invoke("#curtain");
});

Is there an universal solution for looping through and animating series of .png frames with jQuery / JavaScript?

I want to display a few animated "illustrations" on a website I'm working on.
.gif is not an option due to significant loss of quality.
Is there any solution out there that would allow me to iterate through a folder of PNG's and display them on screen?
Thanks in advance.

something like this will work if the images are named 1.png through 25.png for example.
var slides = 25; //number of slides
var i = 1; //first slide
var delay = 200; //set delay
var timer;
function pngani() {
if (i <= slides) {
$('#show img').attr('src', 'pathtofile/' + i + '.png');
}
i++;
}
$('#start').click(function () {
timer = setInterval(pngani, delay);
pngani();
});
$('#pause').click(function () {
clearInterval(timer);
timer = null;
});
$('#reset').click(function () {
i = 1;
$('#show img').attr('src', 'pathtofile/' + i + '.png');
});
I added a start, pause, and reset button, so the execution can be controlled.
made a fiddle: http://jsfiddle.net/filever10/Kur9u/

Animation issues using setInterval

I'm animating a div to left by 0px by clicking on the div colored in red. Below the div , classes are added to li's as the div moves along, but the classes gets added to only certain li's and not all.
Is there any other logic to fix this ?
Fiddle - http://jsfiddle.net/AsfFQ/16/
Below is the image of the issue

Try this jsFiddle example.
var pos;
var timer, selectLi = (function() {
var $block = $('.block'),
$container = $('.container'),
$lis = $('.container ul li'),
liWidth = $lis.width(),
$selectedLi;
return function() {
pos = $block.offset().left - $container.offset().left;
liNum = Math.round(pos / liWidth);
// $selectedLi && $selectedLi.removeClass('selected');
$selectedLi = $($lis.get(liNum));
$('li.eligible').each(function() {
if ($block.offset().left-3 <= $(this).offset().left) $(this).addClass('selected');
});
};
})();
$('.block').click(function() {
timer = setInterval(selectLi, 30);
$(this).animate({
left: 0
}, function() {
clearInterval(timer);
});
});
$('li').each(function() {
$(this).addClass('eligible');
if ($(this).offset().left > $('.block').offset().left) $(this).removeClass('eligible');
});​
This sets the eligible list items and then as the bar moves, compares their position to tjat of the bar and if they're in range, they get the class added.

Your little animation needs only a little code.
See jsfiddle example
var $block = $('.block'),
start = $block.offset().left;
$block.one('click').animate({left: 0})
.$('li').filter(function(){return $(this).offset().left<=start})
.repeat(30).filter(function(){return $(this).offset().left>=$block.offset().left})
.addClass('selected').unrepeat();
​
I'm using this plugin jquery-timing.
This also works when animating 100px on each click, see another fiddle:
var $block = $('.block');
$block.on('click').animate({left: '-=100px'})
.$('li').filter(function(){return $(this).offset().left<=$block.offset().left})
.repeat(30).filter(function(){return $(this).offset().left>=$block.offset().left})
.addClass('selected').unrepeat();
Have fun!

javascript 'over-clicking' bug

I have a bug in Javascript where I am animating the margin left property of a parent container to show its child divs in a sort of next/previous fashion. Problem is if clicking 'next' at a high frequency the if statement seems to be ignored (i.e. only works if click, wait for animation, then click again) :
if (marLeft === (-combinedWidth + (regWidth) + "px")) {
//roll margin back to 0
}
An example can be seen on jsFiddle - http://jsfiddle.net/ZQg5V/
Any help would be appreciated.

Try the below code which will basically check if the container is being animated just return from the function.
Working demo
$next.click(function (e) {
e.preventDefault();
if($contain.is(":animated")){
return;
}
var marLeft = $contain.css('margin-left'),
$this = $(this);
if (marLeft === (-combinedWidth + (regWidth) + "px")) {
$contain.animate({
marginLeft: 0
}, function () {
$back.fadeOut('fast');
});
} else {
$back.fadeIn(function () {
$contain.animate({
marginLeft: "-=" + regWidth + "px"
});
});
}
if (marLeft > -combinedWidth) {
$contain.animate({
marginLeft: 0
});
}
});

Sometimes is better if you create a function to take care of the animation, instead of writting animation code on every event handler (next, back). Also, users won't have to wait for the animation to finish in order to go the nth page/box.
Maybe this will help you:
if (jQuery) {
var $next = $(".next"),
$back = $(".back"),
$box = $(".box"),
regWidth = $box.width(),
$contain = $(".wrap")
len = $box.length;
var combinedWidth = regWidth*len;
$contain.width(combinedWidth);
var currentBox = 0; // Keeps track of current box
var goTo = function(n) {
$contain.animate({
marginLeft: -n*regWidth
}, {
queue: false, // We don't want animations to queue
duration: 600
});
if (n == 0) $back.fadeOut('fast');
else $back.fadeIn('fast');
currentBox = n;
};
$next.click(function(e) {
e.preventDefault();
var go = currentBox + 1;
if (go >= len) go = 0; // Index based, instead of margin based...
goTo(go);
});
$back.click(function(e) {
e.preventDefault();
var go = currentBox - 1;
if (go <= 0) go = 0; //In case back is pressed while fading...
goTo(go);
});
}
Here's an updated version of your jsFiddle: http://jsfiddle.net/victmo/ZQg5V/5/
Cheers!

Use a variable to track if the animation is taking place. Pseudocode:
var animating = false;
function myAnimation() {
if (animating) return;
animating = true;
$(this).animate({what:'ever'}, function() {
animating = false;
});
}
Crude, but it should give you the idea.
Edit: Your current code works fine for me as well, even if I jam out on the button. On firefox.