How stop slide show on mouse over in java script - javascript

I want to stop slide show on mouse over and start on mouse out.
I use this code but it doesn't work, and I cant figure out the problem.
here is my code and I would be thank if anybody help me.
var slideIndex = 1;
var timer = null;
showSlides(slideIndex);
function plusSlides(n) {
clearTimeout(timer);
showSlides(slideIndex += n);
}
function currentSlide(n) {
clearTimeout(timer);
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n==undefined){n = ++slideIndex}
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
timer = setTimeout(showSlides, 5000);
}
$("#slideshow-container").mouseenter(function () {
clearInterval(mySlides);
});
$(function () {
$("#slideshow-container").click(function () {
$("#slideshow-container").stop();
})
})
and this link is my code with css and html, maybe help.
http://jsfiddle.net/3kspho6g/2/

Please try below solution
Updated Javascript
<script type="text/javascript">
var slideIndex = 1;
var timer = null;
showSlides(slideIndex);
function plusSlides(n) {
clearTimeout(timer);
showSlides(slideIndex += n);
}
function currentSlide(n) {
clearTimeout(timer);
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n==undefined){n = ++slideIndex}
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
timer = setTimeout(showSlides, 2000);
}
function stopShow(timer) {
clearInterval(timer);
}
function startShow() {
timer = setTimeout(showSlides, 2000);
}
$(function() {
$('.slideshow-container').hover(function() {
stopShow(timer);
}, function() {
timer = setTimeout(showSlides, 2000);
});
});
</script>
HTML
<div class="slideshow-container">
<div class="mySlides fade">
<div class="numbertext">1 / 4</div>
<img src="https://drawingsdaily.com/wp-content/uploads/2018/06/forms-of-abstract-art-41-best-abstract-paintings-in-the-world-inspirationseek.jpg" style="width:100%;height:400px">
</div>
<div class="mySlides fade">
<div class="numbertext">2 / 4</div>
<img src="https://drawingsdaily.com/wp-content/uploads/2018/05/watercolor-painting-art-50-best-watercolor-paintings-from-top-artists-around-the-world.jpg" style="width:100%;height:400px">
</div>
<div class="mySlides fade">
<div class="numbertext">3 / 4</div>
<img src="https://www.painterartist.com/static/ptr/product_content/painter/2018/bob-ross/gallery/08.jpg" style="width:100%;height:400px">
</div>
<div class="mySlides fade">
<div class="numbertext">4 / 4</div>
<img src="https://afremov.com/images/product/image_427.jpeg" style="width:100%;height:400px">
</div>
<a class="prev" onclick="plusSlides(1)">❮</a>
<a class="next" onclick="plusSlides(-1)">❯</a>
</div>
<div style="text-align:center" class="dot1">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
<span class="dot" onclick="currentSlide(4)"></span>
</div>
CSS Same as it is
Hope this help!

If you use setTimeout you need to use clearTimeout and the value need to be your timer:
$("#slideshow-container").mouseenter(function () {
clearTimeout(timer);
});

Related

Javascript automatic slider not stopping, help needed

why wouldn't this work? I am trying to make it so when you click on the video/div that the iframe video is in it would stop the automatic slider but I just can't get it to work.
javascript:
let slideIndex = 0;
showSlides();
let click = 0;
function clicked() {
var button = document.document.getElementsByClassName('slideshow-container');
button.addEventListener('slideshow-container', function handleClick() {
if (click = 1) {
click = 0;
}
else {
click = 1;
}
});
return click;
}
function showSlides() {
let i;
let slides = document.getElementsByClassName("slides");
let dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) {slideIndex = 1}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
if (click != 1)
{
setTimeout(showSlides, 6666);
}
}
HTML:
<Center>
<div class="slideshow-container">
<div class="slides fade">
<div class="numbertext">1 / 3</div>
<iframe width="1000" height="500" src="https://www.youtube.com/embed/tgbNymZ7vqY"></iframe>
</div>
<div class="slides fade">
<div class="numbertext">2 / 3</div>
<iframe width="1000" height="500" src="https://www.youtube.com/embed/tgbNymZ7vqY"></iframe>
</div>
<div class="slides fade">
<div class="numbertext">3 / 3</div>
<iframe width="1000" height="500" src="https://www.youtube.com/embed/tgbNymZ7vqY"></iframe>
</div>
</div>
</br>
<div>
<span class="dot"></span>
<span class="dot"></span>
<span class="dot"></span>
</div>
</Center>
</div>
<br>
<script src="showSlides.js"></script>
Edit: as requested I swapped out the screenshots for the actual code and spent about 5 minutes trying to figure out how to actually post it and now I need more details but I don't know what to add so I'm writing this.
let slideIndex = 0;
var id = showSlides();
let click = 0;
function clicked() {
var button = document.document.getElementsByClassName('slideshow-container');
button.addEventListener('slideshow-container', function handleClick() {
if (click = 1) {
click = 0;
}
else {
click = 1;
}
});
return click;
}
function showSlides() {
let i;
let slides = document.getElementsByClassName("slides");
let dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) {slideIndex = 1}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
if (click != 1)
{
var timeoutId = setTimeout(showSlides, 6666);
return timeoutId
}
}
Then to stop it, just call
clearTimeout(id)

How do i add an autoplay to slider?

Hi to everyone I found a slider in w3schools.com and I already implement it; You can see it here. The w3schools tutorial has the script to add the autoplay but in this case, is one or another script. ¿Is there a way to use it with arrows and autoplay?
This is the only arrows script:
<script>
var slideIndex = 1;
showSlides(slideIndex);
// Next/previous controls
function plusSlides(n) {
showSlides(slideIndex += n);
}
// Thumbnail image controls
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
}
</script>
THANKS
You can do this with the code below. I have added a stop button so you can see how to stop the autoplaying as well.
N.B. I've added an id to your next button so there's no confusion about which element to click. Using class names isn't advisable if you might want to use .next elsewhere.
The code is fully commented.
Let me know if you wanted anything else.
// Start autoplaying automatically
var autoplayInterval = setInterval(function() {
// Get element via id and click next
document.getElementById("next").click();
}, 1000); // Do this every 1 second, increase this!
// Stop function added to button
function stopAutoplay() {
// Stop the autoplay
clearInterval(autoplayInterval);
}
var slideIndex = 1;
showSlides(slideIndex);
// Start autoplaying automatically
var autoplayInterval = setInterval(function() {
// Get element via id and click next
document.getElementById("next").click();
}, 1000); // Do this every 1 second, increase this!
// Stop function added to button
function stopAutoplay() {
// Stop the autoplay
clearInterval(autoplayInterval);
}
// Next/previous controls
function plusSlides(n) {
showSlides(slideIndex += n);
}
// Thumbnail image controls
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {
slideIndex = 1
}
if (n < 1) {
slideIndex = slides.length
}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
}
<body data-new-gr-c-s-check-loaded="14.991.0" data-gr-ext-installed="">
<!-- Slideshow container -->
<div class="slideshow-container">
<!-- Full-width images with number and caption text -->
<div class="mySlides fade" style="display: block;">
<div class="numbertext">1 / 3</div>
<img src="https://acrip.co/wp-content/uploads/2021/01/banner-panel-enero-19.jpg" style="width:100%">
<div class="text">Caption Text</div>
</div>
<div class="mySlides fade" style="display: none;">
<div class="numbertext">2 / 3</div>
<img src="https://acrip.co/wp-content/uploads/2021/01/banner-webinar-soluciones-20-3.jpg" style="width:100%">
<div class="text">Caption Two</div>
</div>
<div class="mySlides fade" style="display: none;">
<div class="numbertext">3 / 3</div>
<img src="https://acrip.co/wp-content/uploads/2020/12/slider_3-kactus.jpg" style="width:100%">
<div class="text">Caption Three</div>
</div>
<!-- Next and previous buttons -->
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a id="next" class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<!-- The dots/circles -->
<div style="text-align:center">
<span class="dot active" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
</div>
<br>
<button id="stopAutoplayButton" onclick="stopAutoplay();">Stop</button>
</body>

Convert inline javascript to external file

I am working on a carousel in w3school. They actually have an inline javascript code and I am trying to convert it to an external javascript file. I have this code in my external file
window.addEventListener('DOMContentLoaded', function () {
var slideIndex = 1;
showSlides(slideIndex);
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
}
}, false);
But when I navigate the carousel, it displays error Uncaught ReferenceError: currentSlide is not defined at HTMLSpanElement.onclick and does not work/navigate the images in the carousel
This is the HTML code
<div class="slideshow">
<div class="slideshow-container">
<div class="mySlides fade">
<img class="carousel-item" src="https://lorempixel.com/800/400/food/1">
</div>
<div class="mySlides fade">
<img class="carousel-item" src="https://lorempixel.com/800/400/food/2">
</div>
</div>
<div class="slide-nav">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
</div>
</div>
<script type="text/javascript" src="js/components.js"></script>
Because currentSlide is not globally accessible (HTML inline event handlers run in the global scope). You need to define it in the global scope for it to work:
function currentSlide(n) {
showSlides(slideIndex = n);
}
window.addEventListener("DOMContentLoaded", function() {...}, false);

Slideshow code doesn't work in Javascript

I made a slideshow. This is the HTML code!
<div class="slideshow-container">
<div class="mySlides fade">
<img src="img/background.png" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img/background2.png" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img/background3.png" style="width:100%">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
and this is the javascript code
<script>
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function showSlides(slideIndex) {
var i;
var slides = document.getElementsByClassName("mySlides");
if (slideIndex > slides.length) { slideIndex = 1; }
if (slideIndex < 1) { slideIndex = slides.length; }
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slides[slideIndex - 1].style.display = "block";
}
</script>
but due to some unknown reasons it doesn't work properly, please debug and explain why this code is not working?
You define your index variable twice: slideIndex. Once as a global variable and then as a function parameter, overwriting only the function parameter value. You can remove the function parameter and increment / decrease the slideIndex value in your plusSlides function.
var slideIndex = 1;
showSlides();
function plusSlides(n) {
slideIndex += n;
showSlides();
}
function showSlides() {
var slides = document.getElementsByClassName("mySlides");
if (slideIndex > slides.length) { slideIndex = 1; }
if (slideIndex < 1) { slideIndex = slides.length; }
for (var i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slides[slideIndex - 1].style.display = "block";
}

How do I pick images from folder and display in HTML?

I am trying to create a image slideshow. Presently I write a simple code to display images. Now when I add new images to the same folder I have to again update the code for displaying the new image. How do I make it dynamic so that the code automatically picks the image and displays in the HTML page.
<body>
<div class="slideshow-container">
<div class="mySlides fade">
<img src="img_nature_wide.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img_snow_wide.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img_mountains_wide.jpg" style="width:100%">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<div style="text-align:center">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
</div>
<script>
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {
slideIndex = 1
}
if (n < 1) {
slideIndex = slides.length
}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
}
</script>
</body>
Optionally, if you are not using server side scripting, you can use a JavaScript array and insert images. Will not work for 50 images, it's cumbersome.
document.addEventListener( 'DOMContentLoaded', function(){
// insert your images here
var imgs = [ 'one.jpg', 'two.jpg' ];
var div, img;
for( var x = 0; x < imgs.length;x++ ){
div = document.createElement('div');
div.className = 'mylides fade';
img = document.createElement('img');
img.src = imgs[x];
div.appendChild( img );
document.querySelector('.slideshow-container').insertBerofe( div, document.querySelector('.next') );
}
}, false
)

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