슬라이더 이펙트

이미지1

이미지2

이미지3

이미지4

이미지5

소스보기

Javascript

HTML

CSS

const sliderWrap = document.querySelector(".slider__wrap");
const sliderImg = document.querySelector(".slider__img"); //보여지는영역
const sliderInner = document.querySelector(".slider__inner"); //움직이는 영역
const slider = document.querySelectorAll(".slider"); //각각 이미지
const sliderDot = document.querySelector(".slider__dot"); //닷

const sliderBtn = document.querySelector(".slider__btn"); //각각 이미지
const sliderBtnPrev = document.querySelector(".slider__btn .prev"); //왼쪽 버튼
const sliderBtnNext = document.querySelector(".slider__btn .next"); //오른쪽 버튼

let currentIndex = 0; //현재 이미지
let sliderLength = slider.length; //슬라이더 갯수
let sliderWidth = slider[0].offsetWidth; //이미지 가로값
let sliderFirst = slider[0]; //첫번째 이미지
let sliderLast = slider[slider.length - 1]; //마지막이미지

cloneFirst = sliderFirst.cloneNode(true); //첫번째 이미지복사
cloneLast = sliderLast.cloneNode(true); //마지막 이미지 복사

sliderInner.appendChild(cloneFirst);
sliderInner.insertBefore(cloneLast, sliderFirst);
let dotIndex = "";
function init() {
    //이미지 갯수 만큼 닷메뉴
    // for (i = 0; i < sliderLength; i++) {
    //     dotIndex += `<a href='#'' class='dot'>이미지${i}</a>`;
    // }
    slider.forEach((e, i) => {
        dotIndex += `<a href='#'' class='dot'>이미지${i + 1}</a>`;
    });
    sliderDot.innerHTML = dotIndex;
    sliderDot.firstElementChild.classList.add("active");
}
init();
let num = 0;
function gotoSlider(direction) {
    sliderInner.classList.add("transition");
    sliderBtn.classList.add("disable");
    setTimeout(() => {
        sliderBtn.classList.remove("disable");
    }, 500);
    let posInitial = sliderInner.offsetLeft;
    // console.log(posInitial);
    if (direction == -1) {
        sliderInner.style.left = posInitial + sliderWidth + "px";
        //닷버튼 엑티브
        dotActive(direction);
        currentIndex--;
    } else if (direction == 1) {
        sliderInner.style.left = posInitial - sliderWidth + "px";
        //닷버튼 엑티브
        dotActive(direction);
        currentIndex++;
    }
}
//순간이동 슬라이드
function checkIndex() {
    sliderInner.classList.remove("transition");
    if (currentIndex == sliderLength) {
        sliderInner.style.left = -(1 * sliderWidth) + "px";
        currentIndex = 0;
    }
    if (currentIndex == -1) {
        sliderInner.style.left = -(sliderLength * sliderWidth) + "px";
        currentIndex = sliderLength - 1;
    }
}

//닷 엑티브
num = 0;
function dotActive(act) {
    document.querySelectorAll(".dot").forEach((e, i) => {
        e.classList.remove("active");
    });

    if (act === -1) {
        num == 0 ? (num = 4) : (num = (num - 1) % sliderLength);
        sliderDot.children[num].classList.add("active");
    } else if (act === 1) {
        num = (num + 1) % sliderLength;
        sliderDot.children[num].classList.add("active");
    }
}

sliderBtnPrev.addEventListener("click", () => gotoSlider(-1));
sliderBtnNext.addEventListener("click", () => gotoSlider(1));
sliderInner.addEventListener("transitionend", checkIndex);

<main id="main">
    <section id="sliderType04">
        <div class="slider__wrap">
            <div class="slider__img">
                <div class="slider__inner">
                    <div class="slider s1"><span>이미지1</span><img src="../assets/img/effect_bg11@2x.jpg" alt="동물사진" /></div>
                    <div class="slider s2"><span>이미지2</span><img src="../assets/img/effect_bg12@2x.jpg" alt="동물사진" /></div>
                    <div class="slider s3"><span>이미지3</span><img src="../assets/img/effect_bg13@2x.jpg" alt="동물사진" /></div>
                    <div class="slider s4"><span>이미지4</span><img src="../assets/img/effect_bg14@2x.jpg" alt="동물사진" /></div>
                    <div class="slider s5"><span>이미지5</span><img src="../assets/img/effect_bg15@2x.jpg" alt="동물사진" /></div>
                </div>
            </div>
            <div class="slider__btn">
                <button href="#" class="prev">prev</button>
                <button href="#" class="next">next</button>
            </div>
            <div class="slider__dot">
            </div>
        </div>
    </section>
</main>

/* slider */
.slider__wrap {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 이미지 보이는 영역 */
.slider__img {
    position: relative;
    height: 450px;
    width: 800px;
    overflow: hidden;
}
/* 이미지를 감싸고 있는 부모 : 움직이는 부분 */
.slider__inner {
    display: flex;
    flex-wrap: wrap;
    width: 10000px;
    height: 450px;
    position: relative;
    left: -800px;
}
.slider__inner.transition {
    transition: all 0.3s;
}
/* 개별적인 이미지 */
.slider {
    position: relative;
    width: 800px;
    height: 450px;
}
.slider span {
    content: "";
    position: absolute;
    left: 5px;
    top: 5px;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    padding: 5px 10px;
}
/* .slider:nth-child(1)::before {
    content: "이미지5";
}
.slider:nth-child(2)::before {
    content: "이미지1";
}
.slider:nth-child(3)::before {
    content: "이미지2";
}
.slider:nth-child(4)::before {
    content: "이미지3";
}
.slider:nth-child(5)::before {
    content: "이미지4";
}
.slider:nth-child(6)::before {
    content: "이미지5";
}
.slider:nth-child(7)::before {
    content: "이미지1";
}  */

@media (max-width: 800px) {
    .slider__img {
        width: 400px;
        height: 260px;
    }
}

.slider__btn button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.4);
    text-align: center;
    line-height: 50px;
    transition: all 0.2s;
    display: block;
    color: #fff;
    user-select: none;
    cursor: pointer;
    border: 0;
}
.slider__btn button:hover {
    background: rgba(0, 0, 0, 0.8);
}
.slider__btn button.prev {
    left: 0;
}
.slider__btn button.next {
    right: 0;
}
.slider__btn.disable button {
    pointer-events: none;
}
.slider__dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 20px;
}
.slider__dot .dot {
    width: 20px;
    height: 20px;
    background: rgba(0, 0, 0, 0.4);
    display: inline-block;
    border-radius: 50%;
    margin: 3px;
    text-indent: -9999px;
    transition: all 0.4s;
}
.slider__dot .dot.active {
    background: rgba(255, 255, 255, 0.9);
}