I'm building a little site with full page horizontal and vertical scrolling. Check out a codepen demo here. There is a bug with the demo, the 'left' and 'up' buttons don't work how they're supposed to. The 'right' and 'down' buttons work fine. I just threw that together to show you what I'm talking about (excuse my inline styling).
First off, I need to incorporate touchEvents to make the full page scrolling work on mobile devices. If the user swipes left, right, down, or up, the page should move accordingly. I'm still learning the fundamentals of JS and I have no idea where to start with that.
Secondly, I have a few doubts about whether or not I'm using best practices in my JS. For one thing, I repeat myself a lot. For another, I'm pretty sure there's a simpler method for what I'm trying to do. I'd appreciate it if you could take a look at my code and give me some suggestions. Thanks!
You need to modify these two in CSS:
#center.cslide-up {
top: 100vh;
}
#center.cslide-left {
left: 100vw;
}
First one: When the up button is clicked, it will move 100vh down from top position.
Second one: When the left button is clicked, it will move 100vw right from left position.
As far as for mobile phones, I'd suggest try using:
Hammer.js : https://hammerjs.github.io/
Or Refer this answer: https://stackoverflow.com/a/23230280/2474466
And you can reduce the lines of code by cooking up a function and calling it like this: (Make sure to declare panel2 variable globally)
btnL.addEventListener('click', function() {
swiper("left");
});
btnLBack.addEventListener('click', function() {
swiper("left");
});
function swiper(dir){
panelC.classList.toggle('cslide-'+dir);
if(dir=="up") panel2=panelU;
else if(dir=="right") panel2=panelR;
else if(dir=="left") panel2=panelL;
else if(dir=="down") panel2=panelD;
panel2.classList.toggle('slide-'+dir);
}
The function swiper takes a single argument dir which determines in which direction it has to be moved. And you can concatenate the dir with cslide- to move the center container. And use if/else conditions to determine which panel to move and use the same idea for it as well.
And to make it more simpler and a bit efficient, if you're not making use of any other eventlisteners for the buttons or panels and the only aim is to toggle the class around, you can just use inline onClick="swiper('direction');" attribute on the panels and buttons to trigger it only when needed instead of defining the eventlisteners in the script.
var panel2;
var panelC = document.getElementById('center');
var panelU = document.getElementById('up');
var panelR = document.getElementById('right');
var panelD = document.getElementById('down');
var panelL = document.getElementById('left');
var btnU = document.getElementById('btn-up');
var btnR = document.getElementById('btn-right');
var btnD = document.getElementById('btn-down');
var btnL = document.getElementById('btn-left');
var btnUBack = document.getElementById('btn-up-back');
var btnRBack = document.getElementById('btn-right-back');
var btnDBack = document.getElementById('btn-down-back');
var btnLBack = document.getElementById('btn-left-back');
btnU.addEventListener('click', function() {
swiper("up");
});
btnUBack.addEventListener('click', function() {
swiper("up");
});
btnR.addEventListener('click', function() {
swiper("right");
});
btnRBack.addEventListener('click', function() {
swiper("right");
});
btnD.addEventListener('click', function() {
swiper("down");
});
btnDBack.addEventListener('click', function() {
swiper("down");
});
btnL.addEventListener('click', function() {
swiper("left");
});
btnLBack.addEventListener('click', function() {
swiper("left");
});
function swiper(dir){
panelC.classList.toggle('cslide-'+dir);
if(dir=="up") panel2=panelU;
else if(dir=="right") panel2=panelR;
else if(dir=="left") panel2=panelL;
else if(dir=="down") panel2=panelD;
panel2.classList.toggle('slide-'+dir);
}
* {
margin: 0;
padding: 0;
transition: 1.5s ease;
-webkit-transition: 1.5s ease;
overflow: hidden;
background: white;
}
.panel {
width: 100vw;
height: 100vh;
display: block;
position: absolute;
border: 1px solid blue;
}
.btn {
position: absolute;
padding: 16px;
cursor: pointer;
}
#center {
top: 0px;
left: 0px;
right: 0px;
bottom: 0px;
}
#center.cslide-up {
top: 100vh;
}
#center.cslide-left {
left: 100vw;
}
#center.cslide-right {
left: -100vw;
}
#center.cslide-down {
top: -100vh;
}
#up {
top: -100vh;
}
#up.slide-up {
top: 0;
}
#right {
right: -100vw;
}
#right.slide-right {
right: 0;
}
#down {
bottom: -100vh;
}
#down.slide-down {
bottom: 0;
}
#left {
left: -100vw
}
#left.slide-left {
left: 0;
}
<div class="panel" id="center">
<div class="btn" id="btn-up" style="text-align: center; width: 100%;">
up
</div>
<div class="btn" id="btn-right" style="right: 0; top: 50%;">
right
</div>
<div class="btn" id="btn-down" style="text-align: center; bottom: 0; width: 100%;">
down
</div>
<div class="btn" id="btn-left" style="top: 50%;">
left
</div>
</div>
<div class="panel" id="up">
<div class="btn" id="btn-up-back" style="bottom: 0; width: 100%; text-align: center;">
back
</div>
</div>
<div class="panel" id="right">
<div class="btn" id="btn-right-back" style="left: 0; top: 50%;">
back
</div>
</div>
<div class="panel" id="down">
<div class="btn" id="btn-down-back" style="top: 0; width: 100%; text-align: center;">
back
</div>
</div>
<div class="panel" id="left">
<div class="btn" id="btn-left-back" style="right: 0; top: 50%;">
back
</div>
</div>
Related
I have an app that shows the active menu with javascript, it is an app made with Cordova.
The problem is that when I press the button to go back, it does not show me the active menu, the previous one is still here.
Is there a possibility to solve this? What I do is with javascript hide the non-active image and show the active image when pressed.
I have attached the code here:
<body>
<script>
var webAppWindow;
</script>
<iframe id="elframe" src="https://uoapp.es/cuenta/" name="iframe" style="position:fixed; width: 100%; height: 94%; "
onLoad="cambioiframe();"></iframe>
<div class="navbar">
<img src="img/logo-uo.png"
style="position: fixed;left: 50%; bottom: 0px; transform: translateX(-50%); width: 120px;" alt="logo"></a>
<a href="https://uoapp.es/blog" target="iframe"><img src="img/icons8-news-64-active.png"
style="position: fixed; left: 0%; bottom: 0px; width: 50px; display: none;" id="blog-activo"
alt="blog"></a>
<a href="https://uoapp.es/blog" target="iframe" onclick="mostraricono1();"><img src="img/icons8-news-64.png"
style="position: fixed;left: 0%; bottom: 0px; width: 50px;" id="blog-no-activo" alt="blog"></a>
<div class="contacto">
<a href="https://uoapp.es/contacto" target="iframe"><img src="img/icons8-group-message-64-active.png"
style="position: fixed;left: 15%; bottom: 0px; width: 50px; display: none;" id="contacto-activo"
alt="contacto"></a>
<a href="https://uoapp.es/contacto" target="iframe" onclick="mostraricono2();"><img
src="img/icons8-group-message-64.png" style="position: fixed;left: 15%; bottom: 0px; width: 50px;"
id="contacto-no-activo" alt="contacto"></a>
<a href="https://uoapp.es/directorio/" target="iframe"><img src="img/icons8-page-64-active.png"
id="directorio-activo" alt="directorio"
style="position: fixed;left: 72%; bottom: 0px; width: 50px; display: none;"></a>
<a href="https://uoapp.es/directorio/" target="iframe" onclick="mostraricono3();"><img
src="img/icons8-page-64.png" id="directorio-no-activo" alt="directorio"
style="position: fixed;left: 72%; bottom: 0px; width: 50px;"></a>
<a href="https://uoapp.es/cuenta/" target="iframe"><img src="img/icons8-user-male-64-active.png"
id="cuenta-activo" alt="cuenta"
style="position: fixed;left: 86%; bottom: 0px; width: 50px; display: none;"></a>
<a href="https://uoapp.es/cuenta/" target="iframe" onclick="mostraricono4();"><img
src="img/icons8-user-male-64.png" id="cuenta-no-activo" alt="cuenta"
style="position: fixed;left: 86%; bottom: 0px; width: 50px;"></a>
</div>
<script src="cordova.js"></script>
<script src="js/index.js"></script>
<script>
</script>
<p id="OneSignalUserId"></p>
<p style="word-break: break-all;" id="OneSignalPushToken"></p>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
app.initialize();
</script>
Javascript code is:
function mostraricono1() {
const blog_noactivo = document.getElementById('blog-no-activo');
blog_noactivo.style.display = "none";
const blog_activo = document.getElementById('blog-activo')
blog_activo.style.display = "block";
const contacto_noactivo = document.getElementById('contacto-no-activo');
contacto_noactivo.style.display = "block";
const contacto_activo = document.getElementById('contacto-activo')
contacto_activo.style.display = "none";
const directorio_noactivo = document.getElementById('directorio-no-activo');
directorio_noactivo.style.display = "block";
const directorio_activo = document.getElementById('directorio-activo')
directorio_activo.style.display = "none";
const cuenta_noactivo = document.getElementById('cuenta-no-activo');
cuenta_noactivo.style.display = "block";
const cuenta_activo = document.getElementById('cuenta-activo')
cuenta_activo.style.display = "none";
}
That is the function show icons 1 then there are the other 3 functions that are identical for each image
I hope someone can help me. If someone can, thank you!
one of the solutions is to give them serial id or serial class name , put for the first one
id = 'id1' and the second element give it an id = 'id2' and so on
then we gonna handle it in the java script using a counter like
var i = 1 ;
so if you want an element of id1 ,it gonna be ('id'+i) and after clicking the next button ,the counter increase (i++) and when clicking the previous button the counter decrease (i--)
below is an example of what i mean
// get all the elemnts of the main div
var selectedDiv = document.querySelectorAll('.contacto div')
// the counter
var i = 1;
function btnRing(clicked_id) {
// this for hide all the elements inside the main div
//when clicking any button the all elements is gonna hide
selectedDiv.forEach(div => {
div.style.display = "none"
})
// this for next button
if (clicked_id === 'btn1') {
// this line to make the previous button active when clicking the next button
document.getElementById('btn2').style.pointerEvents = 'all'
//this to show the next element
document.getElementById('div' + (i + 1)).style.display = 'block'
// increase the counter when clicking next
i++
// this for deactivating the next button when is there is no more elements
if (i >= 4) {
document.getElementById(clicked_id).style.pointerEvents = 'none'
}
//this is the previous button
} else if (clicked_id === 'btn2') {
// this for activating the next button after i deactivate it above
document.getElementById('btn1').style.pointerEvents = 'all'
//decrease the counter
i--
// showing the previous elemnt
document.getElementById('div' + i).style.display = 'block'
//this for deactivating the previous button after is no more elements
if (i <= 1) {
document.getElementById(clicked_id).style.pointerEvents = 'none'
}
}
}
#div1,
#div2,
#div3,
#div4 {
height: 10rem;
width: 10rem;
background-color: brown;
color: aliceblue;
display: none;
}
#div1 {
display: block;
}
<div class="contacto">
<div id="div1">DIV 1</div>
<div id="div2">DIV 2</div>
<div id="div3">DIV 3</div>
<div id="div4">DIV 4</div>
</div>
<button id='btn1' onclick="btnRing(this.id)">next</button>
<button id='btn2' onclick="btnRing(this.id)">previous</button>
I am trying to achieve an effect of looping through images if a div is hovered or not.
If mouseenter div then cycle through images
if mouseleave div then stop cycling through images and remove all images (only background image will be visible).
currently I am using a setTimeout to fire itself recursively but I am having trouble with jquery on detecting if the mouse is hovering or left the object.
function logoImageLoop() {
$(".one-box .social_gallery .social_img:first").show().next(".social_img").hide().end().appendTo(".one-box .social_gallery");
};
var oneBoxIsHover = false;
$(".one-box").mouseenter(function(){
timeout();
function timeout() {
setTimeout(function(){
logoImageLoop();
timeout();
}, 100);
};
});
Here is a codepen for reference: http://codepen.io/H0BB5/pen/xEpqbv
A similar effect I am trying to achieve can be seen when hovering the cargo logo on this website: http://cargocollective.com/
You just need to clear the timer on mouseleave.
var timer = null;
$(".one-box").mouseenter(function(){
timeout();
function timeout() {
timer = setTimeout(function(){
logoImageLoop();
timeout();
}, 100);
};
}).mouseleave(function(){
clearTimeout(timer);
});
Here's a codepen: http://codepen.io/anon/pen/rrpwYJ
I would use an interval, and the JQuery .hover() functionality. Simply replacing your $(".one-box").mouseenter() with this will run the loop while you're hovered and remove it once your mouse leaves the area.
The important bit:
var imageChangeInterval;
$(".one-box").hover(function() {
imageChangeInterval = setInterval(function() {
logoImageLoop();
}, 100);
}, function() {
clearInterval(imageChangeInterval);
});
Full example:
function logoImageLoop() {
$(".one-box .social_gallery .social_img:first").show().next(".social_img").hide().end().appendTo(".one-box .social_gallery");
};
var oneBoxIsHover = false;
// New code:
var imageChangeInterval;
$(".one-box").hover(function() {
imageChangeInterval = setInterval(function() {
logoImageLoop();
}, 100);
}, function() {
clearInterval(imageChangeInterval);
});
.one-box {
position: relative;
height: 300px;
width: 300px;
}
.one-box a {
width: 100%;
}
.one-box a img {
max-width: 100%;
}
/* .social_img { display: none; } */
a#social_logo {
background-image: url(https://s3-us-west-2.amazonaws.com/staging-site-assets/one-method/instagram-logo.png);
background-repeat: no-repeat;
background-position: 0 0;
display: block;
position: absolute;
width: 73px;
height: 73px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 99;
}
.one_box .social_gallery {
position: absolute;
left: 0;
top: 0;
opacity: 1;
display: none;
}
.nav_logo .social_gallery .social_img {
position: absolute;
float: none;
margin: 0;
opacity: 1;
filter: alpha(opacity=100);
overflow: hidden;
top: 0;
left: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="one-box nav_logo">
<a id="social_logo" href="#" alt=""></a>
<div class="social_gallery img_wall gallery">
<div class="social_img wall_img">
<a class="social_link" href="#">
<img src="https://placeholdit.imgix.net/~text?txtsize=28&bg=222&txt=300%C3%97300&w=300&h=300" />
</a>
</div>
<div class="social_img">
<a class="social_link" href="#">
<img src="https://placeholdit.imgix.net/~text?txtsize=28&bg=fb2&txt=300%C3%97300&w=300&h=300" />
</a>
</div>
<div class="social_img">
<a class="social_link" href="#">
<img src="https://placeholdit.imgix.net/~text?txtsize=28&bg=777&txt=300%C3%97300&w=300&h=300" />
</a>
</div>
<div class="social_img">
<a class="social_link" href="#">
<img src="https://placeholdit.imgix.net/~text?txtsize=28&bg=fb2&txt=300%C3%97300&w=300&h=300" />
</a>
</div>
</div>
<div>
After studying, looking at tutorials, getting some help here, I almost got this script working as intended. However, I'm not at a stand still and my brain hurts trying to figure out the logic.
The problem is the script allows for over scrolling forward. How can I stop that?
jQuery:
var $item = $('.slider'),
start = 0,
view = $('#main-header').width(),
end = $('.slider').width();
$('.next').click(function () {
if (start < view) {
start++;
$item.animate({
'left': '-=100%'
});
}
});
$('.prev').click(function () {
if (start > 0) {
start--;
$item.animate({
'left': '+=100%'
});
}
});
HTML:
<div id="main-header">
<div class="slider">
<div class="item-post" style="background: url(http://4.bp.blogspot.com/-LjJWOy7K-Q0/VOUJbMJr0_I/AAAAAAAAdAg/I2V70xea8YE/s320-c/enviroment-5.jpg) center"></div>
<div class="item-post" style="background: url(http://1.bp.blogspot.com/-l3UnbspFvv0/VOUK8M-34UI/AAAAAAAAdA0/ooGyXrHdNcg/s320-c/enviroment-2.jpg)"></div>
<div class="item-post" style="background: url(http://2.bp.blogspot.com/-cun1kQ42IBs/VOUaSPfnebI/AAAAAAAAdBQ/yTEj9K-BGdk/s320-c/fashion-3.jpg)"></div>
</div>
<div class="prev"></div>
<div class="next"></div>
</div>
CSS:
#main-header {
overflow: hidden;
position: relative;
}
.slider {
width: 100%;
height: 200px;
position: relative;
}
.item-post {
width: 100%;
height: 200px;
background: rgba(0, 0, 0, 0.1);
background-size: cover !important;
background-position: center !important;
position: absolute;
top: 0;
}
.item-post:first-of-type {
left: 0;
}
.item-post:nth-of-type(2) {
left: 100%;
}
.item-post:last-of-type {
left: 200%;
}
.prev, .next {
position: absolute;
top: 0;
bottom: 0;
width: 25px;
background: rgba(0, 0, 0, 0.2);
cursor: pointer;
}
.prev {
left: 0;
}
.next {
right: 0;
}
jsfiddle: http://jsfiddle.net/51maaks8/8/
In order to determine whether there is another slide visible, you could create a function that adds the .offsetLeft value of the parent element to the .offsetLeft value of the last visible slide element and its width. You would then subtract the width of the parent element from the sum of these calculations.
In doing so, you are essentially calculating the position of the last slide element relative to the left positioning of the .item-wrapper parent element.
function moreVisibleSlides() {
var $last = $('#slider > .item-wrapper > .item-post:last:visible'),
positionRelativeToParent = $last.parent()[0].offsetLeft + $last[0].offsetLeft + $last.width() - $item.width();
return positionRelativeToParent > 5;
}
For the click event listener, only slide the element if there are more visible slides, which is determined by the boolean returned by the moreVisibleSlides function. In addition, I also added a check (!$item.is(':animated')) to prevent the next slide from being animated if there is currently an animation in progress. This ensures that you can't click the .next button multiple times during an animation and then over scroll regardless of whether or not there are more visible slides.
Updated Example
$('.next').click(function () {
if (moreVisibleSlides() && !$item.is(':animated')) {
start++;
$item.animate({
'left': '-=100%'
});
}
});
So, I am doing an assignment for my high school web design class, and I am having trouble getting the z-index of an image to change. There is supposed to be 2 images on top of each other. When you click the button on the page, the image on bottom will come to the top (or the top image will go to the bottom). Here is my code that I`m using:
The javascript
<script type="text/javascript">
function Switch()
{
document.getElementById("mononoke2").style.zIndex = "-1";
}
And here is the HTML
<div id="mononoke2">
<img src="mononoke2.png" alt="ashandsan">
</div>
<div id="mononoke3">
<img src="mononoke3.jpg" alt="sanandmoro" width="1234" height="694">
</div>
<button type="button" onclick="Switch()">Flippity Flip</button>
And the CSS
#mononoke2 {
margin-left: 0px auto;
margin-right: 0px auto;
display: block;
position: absolute;
z-index: 100;
}
#mononoke3 {
margin-left: 0px auto;
margin-right: 0px auto;
display: block;
position: relative;
left: 50px;
z-index: 20;
}
use jQuery.
$("#id").css("zindex","-1");
Change your JS function to this:
function Switch() {
var element = document.getElementById("mononoke2");
var style = window.getComputedStyle(element);
var index = style.getPropertyValue("z-index");
if(index > 0)
{
document.getElementById("mononoke2").style.zIndex = "-30";
}
else
{
document.getElementById("mononoke2").style.zIndex = "100";
}
}
I have 2 <div>s with ids A and B. div A has a fixed width, which is taken as a sidebar.
The layout looks like diagram below:
The styling is like below:
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
}
I have <a id="toggle">toggle</a> which acts as a toggle button. On the toggle button click, the sidebar may hide to the left and div B should stretch to fill the empty space. On second click, the sidebar may reappear to the previous position and div B should shrink back to the previous width.
How can I get this done using jQuery?
$('button').toggle(
function() {
$('#B').css('left', '0')
}, function() {
$('#B').css('left', '200px')
})
Check working example at http://jsfiddle.net/hThGb/1/
You can also see any animated version at http://jsfiddle.net/hThGb/2/
See this fiddle for a preview and check the documentation for jquerys toggle and animate methods.
$('#toggle').toggle(function(){
$('#A').animate({width:0});
$('#B').animate({left:0});
},function(){
$('#A').animate({width:200});
$('#B').animate({left:200});
});
Basically you animate on the properties that sets the layout.
A more advanced version:
$('#toggle').toggle(function(){
$('#A').stop(true).animate({width:0});
$('#B').stop(true).animate({left:0});
},function(){
$('#A').stop(true).animate({width:200});
$('#B').stop(true).animate({left:200});
})
This stops the previous animation, clears animation queue and begins the new animation.
You can visit w3school for the solution on this the link is here and there is another example also available that might surely help,
Take a look
The following will work with new versions of jQuery.
$(window).on('load', function(){
var toggle = false;
$('button').click(function() {
toggle = !toggle;
if(toggle){
$('#B').animate({left: 0});
}
else{
$('#B').animate({left: 200});
}
});
});
Using Javascript
var side = document.querySelector("#side");
var main = document.querySelector("#main");
var togg = document.querySelector("#toogle");
var width = window.innerWidth;
window.document.addEventListener("click", function() {
if (side.clientWidth == 0) {
// alert(side.clientWidth);
side.style.width = "200px";
main.style.marginLeft = "200px";
main.style.width = (width - 200) + "px";
togg.innerHTML = "Min";
} else {
// alert(side.clientWidth);
side.style.width = "0";
main.style.marginLeft = "0";
main.style.width = width + "px";
togg.innerHTML = "Max";
}
}, false);
button {
width: 100px;
position: relative;
display: block;
}
div {
position: absolute;
left: 0;
border: 3px solid #73AD21;
display: inline-block;
transition: 0.5s;
}
#side {
left: 0;
width: 0px;
background-color: red;
}
#main {
width: 100%;
background-color: white;
}
<button id="toogle">Max</button>
<div id="side">Sidebar</div>
<div id="main">Main</div>
$('#toggle').click(function() {
$('#B').toggleClass('extended-panel');
$('#A').toggle(/** specify a time here for an animation */);
});
and in the CSS:
.extended-panel {
left: 0px !important;
}
$(document).ready(function () {
$(".trigger").click(function () {
$("#sidebar").toggle("fast");
$("#sidebar").toggleClass("active");
return false;
});
});
<div>
<a class="trigger" href="#">
<img id="icon-menu" alt='menu' height='50' src="Images/Push Pin.png" width='50' />
</a>
</div>
<div id="sidebar">
</div>
Instead #sidebar give the id of ur div.
This help to hide and show the sidebar, and the content take place of the empty space left by the sidebar.
<div id="A">Sidebar</div>
<div id="B"><button>toggle</button>
Content here: Bla, bla, bla
</div>
//Toggle Hide/Show sidebar slowy
$(document).ready(function(){
$('#B').click(function(e) {
e.preventDefault();
$('#A').toggle('slow');
$('#B').toggleClass('extended-panel');
});
});
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
background:orange;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
background:green;
}
/* makes the content take place of the SIDEBAR
which is empty when is hided */
.extended-panel {
left: 0px !important;
}