Слайдер 3D Blogger
Карусель можно установить как гаджет, например в подвале. Заходим в Дизайн — Добавить гаджет — HTML/JavaScript.
Или в статье — добавляем код в редактор Блоггера в режиме HTML.
Добавление кода в блог
Код:
<div class="slider" id="slider">
<div class="slider-content" id="slider-content">
<div class="sl-img">
<div class="sl-img-item sl-img-item-active" data-id="1"><img src="фото 1"/></div>
<div class="sl-img-item" data-id="2"><img src="фото 2"/></div>
<div class="sl-img-item" data-id="3"><img src="фото 3"/></div>
<div class="sl-img-item" data-id="4"><img src="фото 4"/></div>
<div class="sl-img-item" data-id="5"><img src="фото 5"/></div>
<div class="sl-img-item" data-id="6"><img src="фото 6"/></div>
</div>
<div class="sl-text">
<div class="sl-text-item sl-text-item-active" data-id="1">
<div class="sl-text-item-head">
<h3>Название 1</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 1</p>
</div>
</div>
<div class="sl-text-item" data-id="2">
<div class="sl-text-item-head">
<h3>Название 2</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 2</p>
</div>
</div>
<div class="sl-text-item" data-id="3">
<div class="sl-text-item-head">
<h3>Название 3</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 3</p>
</div>
</div>
<div class="sl-text-item" data-id="4">
<div class="sl-text-item-head">
<h3>Название 4</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 4</p>
</div>
</div>
<div class="sl-text-item" data-id="5">
<div class="sl-text-item-head">
<h3>Название 5</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 5</p>
</div>
<div class="sl-text-item-info"></div>
</div>
<div class="sl-text-item" data-id="6">
<div class="sl-text-item-head">
<h3>Название 6</h3>
</div>
<div class="sl-text-item-info">
<p>Описание 6</p>
</div>
</div>
</div>
</div>
<div class="slider__nav">
<div class="sl-nav-arrows">
<div class="sl-nav-arrow sl-nav-arrow-left" id="left">Лево</div>
<div class="sl-nav-arrow sl-nav-arrow-right" id="right">Право</div>
</div>
<div class="sl-nav-dots" id="sl-nav-dots">
<div class="sl-nav-dot sl-nav-dot-active" data-id="1"></div>
<div class="sl-nav-dot" data-id="2"></div>
<div class="sl-nav-dot" data-id="3"></div>
<div class="sl-nav-dot" data-id="4"></div>
<div class="sl-nav-dot" data-id="5"></div>
<div class="sl-nav-dot" data-id="6"></div>
</div>
</div>
</div>
<style>:root {
--z-distance: 150px;
--from-left: 1;
--mobile-bkp: 650px;
--slider-height: 600px;
}
.slider *,
.slider *::before,
.slider *::after {
box-sizing: border-box;
}
.slider {
width: 100%;
margin: 20px 0;
height: var(--slider-height);
display: flex;
perspective: 1000px;
transform-style: preserve-3d;
position: relative;
}
.slider::before,
.slider::after {
content: '';
left: 0;
top: 0;
display: block;
position: absolute;
width: 100%;
height: var(--slider-height);
background-position: center;
background-size: cover;
will-change: opacity;
z-index: -1;
box-shadow: 0 0 0 50vmax rgba(0, 0, 0, 0.3) inset;
}
.slider::before {
background-image: var(--img-prev);
}
.slider::after {
transition: opacity 0.7s;
opacity: 0;
background-image: var(--img-next);
}
.slider--bg-next::after {
opacity: 1;
}
.slider-content {
margin: auto;
width: 65%;
height: 65%;
will-change: transform;
transform-style: preserve-3d;
pointer-events: none;
transform: translateZ(var(--z-distance));
}
.sl-img {
overflow: hidden;
position: absolute;
width: 100%;
height: calc(100% - 50px);
z-index: 0;
box-shadow: 0 0 30px #000;
}
.sl-img-item {
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
will-change: transform;
transition-timing-function: ease-in;
visibility: hidden;
}
.sl-img-item img {
display: block;
position: relative;
left: -30px;
top: -30px;
width: calc(100% + 60px);
max-width: calc(100% + 60px);
height: calc(100% + 60px);
object-fit: cover;
will-change: transform;
}
.sl-img-item-active {
z-index: 20;
visibility: visible;
}
.sl-img-item-subactive {
z-index: 15;
visibility: visible;
}
.sl-img-item-next {
transform: translateX(100%);
}
.sl-img-item-prev {
transform: translateX(-100%);
}
.sl-img-item-transit {
transition: transform 0.7s, opacity 0.7s;
}
.sl-text {
position: relative;
height: 100%;
}
.sl-text-item {
position: absolute;
width: 100%;
height: 100%;
padding: 10px;
perspective: 1000px;
transform-style: preserve-3d;
}
.sl-text-item > * {
overflow: hidden;
position: absolute;
}
.sl-text-item h3,
.sl-text-item p {
transition: transform 0.35s ease-out;
overflow: hidden;
padding: 10px 20px;
margin: 0;
font-family: 'Roboto', sans-serif;
font-weight: normal;
text-align: center;
}
.sl-text-item h3 {
background-color: rgba(191, 226, 255, 0.9);
font-size: 30px;
text-transform: uppercase;
color: #000;
position: relative;
transform: translateX(-100%);
}
.sl-text-item p {
color: #FFF;
font-size: 20px;
background-color: rgba(51, 122, 183, 0.9);
transform: translateX(100%);
}
.sl-text-item h3::before,
.sl-text-item p::before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
transform: translateX(0);
transition: transform 0.35s ease-out 0.28s;
}
.sl-text-item-head {
top: -10px;
left: -10px;
transform: translateZ(20px);
}
.sl-text-item-info {
bottom: 40px;
right: 0;
max-width: 75%;
min-width: min-content;
transform: translateZ(20px);
}
.sl-text-item-active h3,
.sl-text-item-active p {
transform: translateX(0);
}
.sl-text-item-active h3::before {
transform: translateX(102%);
}
.sl-text-item-active p::before {
transform: translateX(-102%);
}
.sl-text-item-backwards h3::before,
.sl-text-item-backwards p::before {
transition: transform 0.35s ease-in;
}
.sl-text-item-backwards h3,
.sl-text-item-backwards p {
transition: transform 0.35s ease-in 0.35s;
}
.slider__nav {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: var(--slider-height);
text-align: center;
}
.sl-nav-arrows {
display: flex;
justify-content: space-between;
width: 100%;
position: absolute;
top: 0;
left: 0;
height: var(--slider-height);
}
.sl-nav-arrow {
height: calc(var(--slider-height) - 100px);
width: 50vw;
text-indent: -9999px;
white-space: nowrap;
}
.sl-nav-arrow-left {
--arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 4 4'%3E %3Cpolyline points='3 1 1 2 3 3' stroke='white' stroke-width='.6' stroke-opacity='.6' fill='none'%3E%3C/polyline%3E %3C/svg%3E");
cursor: var(--arrow) 30 30, auto;
}
.sl-nav-arrow-right {
--arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 4 4'%3E %3Cpolyline points='1 1 3 2 1 3' stroke='white' stroke-width='.6' stroke-opacity='.6' fill='none'%3E%3C/polyline%3E %3C/svg%3E");
cursor: var(--arrow) 30 30, auto;
}
.sl-nav-dots {
top: calc(var(--slider-height) - 80px);
display: inline-flex;
position: relative;
padding: 12px;
pointer-events: none;
}
.sl-nav-dots::before {
content: '';
position: absolute;
left: 22px;
top: 12px;
width: 20px;
height: 20px;
background-color: rgba(51, 122, 183, 0.9);
transition: transform 0.7s ease-out;
transform: translateX(calc(40px * (var(--from-left) - 1)));
}
.sl-nav-dot {
margin: 0 10px;
width: 20px;
height: 20px;
border: 2px solid rgba(191, 226, 255, 0.9);
cursor: pointer;
pointer-events: all;
display: inline-block;
transition: border-color 0.3s ease-out;
}
.sl-nav-dot:hover {
border-color: rgba(255, 255, 255, 1);
}
.sl-nav-dot:active {
border-color: rgba(255, 255, 255, 1);
}
@media only screen and (max-width: 650px) {
.slider::before,
.slider::after {
display: none;
}
.slider-content {
width: 100%;
height: var(--slider-height);
transform: translateZ(0);
}
.sl-img {
height: 100%;
box-shadow: none;
}
.sl-text-item-info {
bottom: 116px;
left: 50%;
transform: translate(-50%, 0);
}
.sl-text-item-info p {
padding: 20px;
}
.sl-text-item-head {
top: 40px;
left: 40px;
transform: translateZ(0);
}
.sl-text-item-head h3 {
font-size: 26px;
}
.sl-nav-dots {
background-color: rgba(0, 0, 0, 0.3);
}
.sl-nav-arrow {
width: 10%;
position: relative;
cursor: auto;
height: var(--slider-height);
}
.sl-nav-arrow::before {
content: '';
background-image: var(--arrow);
background-size: cover;
width: 40px;
height: 40px;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.sl-nav-arrow-left {
background-image: linear-gradient(to right, rgba(0, 0, 0, 0.7) 0, transparent 100%);
}
.sl-nav-arrow-left:active {
background-image: linear-gradient(to right, rgba(0, 0, 0, 0.9) 0, transparent 100%);
}
.sl-nav-arrow-right {
background-image: linear-gradient(to left, rgba(0, 0, 0, 0.7) 0, transparent 100%);
}
.sl-nav-arrow-right:active {
background-image: linear-gradient(to left, rgba(0, 0, 0, 0.9) 0, transparent 100%);
}
/* Фикс для ресайза */
.slider-content,
.sl-img-item img {
transform: none!important;
}
} </style>
<script>function lerp({ x, y }, { x: targetX, y: targetY }) {
const fraction = 0.1;
x += (targetX - x) * fraction;
y += (targetY - y) * fraction;
return { x, y };
}
class Slider {
constructor (el) {
const imgClass = this.IMG_CLASS = 'sl-img-item';
const textClass = this.TEXT_CLASS = 'sl-text-item';
const activeImgClass = this.ACTIVE_IMG_CLASS = `${imgClass}-active`;
const activeTextClass = this.ACTIVE_TEXT_CLASS = `${textClass}-active`;
this.el = el;
this.contentE0 = document.getElementById('slider');
this.contentEl = document.getElementById('slider-content');
this.onMouseMove = this.onMouseMove.bind(this);
this.activeImg = el.getElementsByClassName(activeImgClass);
this.activeText = el.getElementsByClassName(activeTextClass);
this.images = el.getElementsByTagName('img');
document.getElementById('sl-nav-dots').addEventListener('click', this.onDotClick.bind(this));
document.getElementById('left').addEventListener('click', this.prev.bind(this));
document.getElementById('right').addEventListener('click', this.next.bind(this));
window.addEventListener('resize', this.onResize.bind(this));
this.onResize();
this.length = this.images.length;
this.lastX = this.lastY = this.targetX = this.targetY = 0;
}
onResize () {
const htmlStyles = getComputedStyle(document.documentElement);
const mobileBreakpoint = htmlStyles.getPropertyValue('--mobile-bkp');
const isMobile = this.isMobile = matchMedia(`only screen and (max-width: ${mobileBreakpoint})`).matches;
this.halfWidth = this.contentE0.offsetWidth / 2;
this.halfHeight = this.contentE0.offsetHeight / 2;
this.zDistance = htmlStyles.getPropertyValue('--z-distance');
if (!isMobile && !this.mouseWatched) {
this.mouseWatched = true;
this.el.addEventListener('mousemove', this.onMouseMove);
this.el.style.setProperty(
'--img-prev',
`url(${this.images[+this.activeImg[0].dataset.id - 1].src})`
);
this.contentEl.style.setProperty('transform', `translateZ(${this.zDistance})`);
} else if (isMobile && this.mouseWatched) {
this.mouseWatched = false;
this.el.removeEventListener('mousemove', this.onMouseMove);
this.contentEl.style.setProperty('transform', 'none');
}
}
getMouseCoefficients ({ clientX, clientY } = {}) {
const halfWidth = this.halfWidth;
const halfHeight = this.halfHeight;
const xCoeff = ((clientX || this.targetX) - halfWidth) / halfWidth;
const yCoeff = (halfHeight - (clientY || this.targetY)) / halfHeight;
return { xCoeff, yCoeff }
}
onMouseMove ({ clientX, clientY }) {
this.targetX = clientX - this.contentE0.getBoundingClientRect().left;
this.targetY = clientY - this.contentE0.getBoundingClientRect().top;
if (!this.animationRunning) {
this.animationRunning = true;
this.runAnimation();
}
}
runAnimation () {
if (this.animationStopped) {
this.animationRunning = false;
return;
}
const maxX = 10;
const maxY = 10;
const newPos = lerp({
x: this.lastX,
y: this.lastY
}, {
x: this.targetX,
y: this.targetY
});
const { xCoeff, yCoeff } = this.getMouseCoefficients({
clientX: newPos.x,
clientY: newPos.y
});
this.lastX = newPos.x;
this.lastY = newPos.y;
this.positionImage({ xCoeff, yCoeff });
this.contentEl.style.setProperty('transform', `
translateZ(${this.zDistance})
rotateX(${maxY * yCoeff}deg)
rotateY(${maxX * xCoeff}deg)
`);
if (this.reachedFinalPoint) {
this.animationRunning = false;
} else {
requestAnimationFrame(this.runAnimation.bind(this));
}
}
get reachedFinalPoint () {
const lastX = ~~this.lastX;
const lastY = ~~this.lastY;
const targetX = this.targetX;
const targetY = this.targetY;
return (lastX == targetX || lastX - 1 == targetX || lastX + 1 == targetX)
&& (lastY == targetY || lastY - 1 == targetY || lastY + 1 == targetY);
}
positionImage ({ xCoeff, yCoeff }) {
const maxImgOffset = 1;
const currentImage = this.activeImg[0].children[0];
currentImage.style.setProperty('transform', `
translateX(${maxImgOffset * -xCoeff}em)
translateY(${maxImgOffset * yCoeff}em)
`);
}
onDotClick ({ target }) {
if (this.inTransit) return;
const dot = target.closest('.sl-nav-dot');
if (!dot) return;
const nextId = dot.dataset.id;
const currentId = this.activeImg[0].dataset.id;
if (currentId == nextId) return;
this.startTransition(nextId);
}
transitionItem (nextId) {
function onImageTransitionEnd (e) {
e.stopPropagation();
nextImg.classList.remove(transitClass);
self.inTransit = false;
this.className = imgClass;
this.removeEventListener('transitionend', onImageTransitionEnd);
}
const self = this;
const el = this.el;
const currentImg = this.activeImg[0];
const currentId = currentImg.dataset.id;
const imgClass = this.IMG_CLASS;
const textClass = this.TEXT_CLASS;
const activeImgClass = this.ACTIVE_IMG_CLASS;
const activeTextClass = this.ACTIVE_TEXT_CLASS;
const subActiveClass = `${imgClass}-subactive`;
const transitClass = `${imgClass}-transit`;
const nextImg = el.querySelector(`.${imgClass}[data-id='${nextId}']`);
const nextText = el.querySelector(`.${textClass}[data-id='${nextId}']`);
let outClass = '';
let inClass = '';
this.animationStopped = true;
nextText.classList.add(activeTextClass);
el.style.setProperty('--from-left', nextId);
currentImg.classList.remove(activeImgClass);
currentImg.classList.add(subActiveClass);
if (currentId < nextId) {
outClass = `${imgClass}-next`;
inClass = `${imgClass}-prev`;
} else {
outClass = `${imgClass}-prev`;
inClass = `${imgClass}-next`;
}
nextImg.classList.add(outClass);
requestAnimationFrame(() => {
nextImg.classList.add(transitClass, activeImgClass);
nextImg.classList.remove(outClass);
this.animationStopped = false;
this.positionImage(this.getMouseCoefficients());
currentImg.classList.add(transitClass, inClass);
currentImg.addEventListener('transitionend', onImageTransitionEnd);
});
if (!this.isMobile)
this.switchBackgroundImage(nextId);
}
startTransition (nextId) {
function onTextTransitionEnd(e) {
if (!e.pseudoElement) {
e.stopPropagation();
requestAnimationFrame(() => {
self.transitionItem(nextId);
});
this.removeEventListener('transitionend', onTextTransitionEnd);
}
}
if (this.inTransit) return;
const activeText = this.activeText[0];
const backwardsClass = `${this.TEXT_CLASS}-backwards`;
const self = this;
this.inTransit = true;
activeText.classList.add(backwardsClass);
activeText.classList.remove(this.ACTIVE_TEXT_CLASS);
activeText.addEventListener('transitionend', onTextTransitionEnd);
requestAnimationFrame(() => {
activeText.classList.remove(backwardsClass);
});
}
next () {
if (this.inTransit) return;
let nextId = +this.activeImg[0].dataset.id + 1;
if (nextId > this.length)
nextId = 1;
this.startTransition(nextId);
}
prev () {
if (this.inTransit) return;
let nextId = +this.activeImg[0].dataset.id - 1;
if (nextId < 1)
nextId = this.length;
this.startTransition(nextId);
}
switchBackgroundImage (nextId) {
function onBackgroundTransitionEnd (e) {
if (e.target === this) {
this.style.setProperty('--img-prev', imageUrl);
this.classList.remove(bgClass);
this.removeEventListener('transitionend', onBackgroundTransitionEnd);
}
}
const bgClass = 'slider--bg-next';
const el = this.el;
const imageUrl = `url(${this.images[+nextId - 1].src})`;
el.style.setProperty('--img-next', imageUrl);
el.addEventListener('transitionend', onBackgroundTransitionEnd);
el.classList.add(bgClass);
}
}
const sliderEl = document.getElementById('slider');
const slider = new Slider(sliderEl);
let timer = 0;
function autoSlide () {
requestAnimationFrame(() => {
slider.next();
});
timer = setTimeout(autoSlide, 4000);
}
function stopAutoSlide () {
clearTimeout(timer);
this.removeEventListener('touchstart', stopAutoSlide);
this.removeEventListener('mousemove', stopAutoSlide);
}
sliderEl.addEventListener('mousemove', stopAutoSlide);
sliderEl.addEventListener('touchstart', stopAutoSlide);
timer = setTimeout(autoSlide, 4000); </script>
Размеры изображения для слайдера не имеют значения, поскольку края обрезаются по видимой области.
В код вставляем адреса своих изображений — выделила красным цветом.
Меняем название фотографий в коде выделила синим цветом.
Пишем своё описание фото - зелёным цветом.
Просмотреть работу слайдера можно на тестовом блоге, в подвале сайта.
Комментарии со спамом удаляются.