Fullscreen drag-slider with parallax

Fullscreen-drag-slider-with-parallax.markdown

Fullscreen drag-slider with parallax

Sort of responsive. Tested in Chrome/FF/last IE, everywhere looks fine.

Source of inspiration - https://stupid-studio.com/ (their js is minified, so all code is mine, except some parts of svg, like viewBox/minHeight).

A Pen by Nikolay Talanov on CodePen.

License.

index.html

<div class="slider-container">
  <div class="slider-control left inactive"></div>
  <div class="slider-control right"></div>
  <div class="slider">
    <div class="slide slide-0 active">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading">Project name 1</h2>
          <p class="slide__text-desc">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia.</p>
          <a class="slide__text-link">Project link</a>
        </div>
      </div>
    </div>
    <div class="slide slide-1 ">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading">Project name 2</h2>
          <p class="slide__text-desc">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia.</p>
          <a class="slide__text-link">Project link</a>
        </div>
      </div>
    </div>
    <div class="slide slide-2">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading">Project name 3</h2>
          <p class="slide__text-desc">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia.</p>
          <a class="slide__text-link">Project link</a>
        </div>
      </div>
    </div>
    <div class="slide slide-3">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading">Project name 4</h2>
          <p class="slide__text-desc">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio veniam minus illo debitis nihil animi facere, doloremque voluptate tempore quia.</p>
          <a class="slide__text-link">Project link</a>
        </div>
      </div>
    </div>
  </div>
</div>

script.js

$(document).ready(function() {
  
  var $slider = $(".slider"),
      $slideBGs = $(".slide__bg"),
      diff = 0,
      curSlide = 0,
      numOfSlides = $(".slide").length-1,
      animating = false,
      animTime = 500;
  
  function manageControls() {
    $(".slider-control").removeClass("inactive");
    if (!curSlide) $(".slider-control.left").addClass("inactive");
    if (curSlide === numOfSlides) $(".slider-control.right").addClass("inactive");
  }
  
  function changeSlides(instant) {
    if (!instant) {
      animating = true;
      manageControls();
      $slider.addClass("animating");
      $slider.css("top");
      $(".slide").removeClass("active");
      $(".slide-"+curSlide).addClass("active");
      setTimeout(function() {
        $slider.removeClass("animating");
        animating = false;
      }, animTime);
    }
    $slider.css("transform", "translate3d("+ -curSlide*100 +"%,0,0)");
    $slideBGs.css("transform", "translate3d("+ curSlide*50 +"%,0,0)");
    diff = 0;
  }

  function navigateLeft() {
    if (animating) return;
    if (curSlide > 0) curSlide--;
    changeSlides();
  }

  function navigateRight() {
    if (animating) return;
    if (curSlide < numOfSlides) curSlide++;
    changeSlides();
  }

  $(document).on("mousedown touchstart", ".slider", function(e) {
    if (animating) return;
    var startX = e.pageX || e.originalEvent.touches[0].pageX;
    diff = 0;
    
    $(document).on("mousemove touchmove", function(e) {
      var x = e.pageX || e.originalEvent.touches[0].pageX;
      diff = (startX - x) / $(window).width() * 70;
      if ((!curSlide && diff < 0) || (curSlide === numOfSlides && diff > 0)) diff /= 2;
      $slider.css("transform", "translate3d("+ (-curSlide*100 - diff) +"%,0,0)");
      $slideBGs.css("transform", "translate3d("+ (curSlide*50 + diff/2) +"%,0,0)");
    });
  });
  
  $(document).on("mouseup touchend", function(e) {
    $(document).off("mousemove touchmove");
    if (animating) return;
    if (!diff) {
      changeSlides(true);
      return;
    }
    if (diff > -8 && diff < 8) {
      changeSlides();
      return;
    }
    if (diff <= -8) {
      navigateLeft();
    }
    if (diff >= 8) {
      navigateRight();
    }
  });
  
  $(document).on("click", ".slider-control", function() {
    if ($(this).hasClass("left")) {
      navigateLeft();
    } else {
      navigateRight();
    }
  });
  
});

style.scss

@import "compass/css3";
@font-face {
  src: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/polar.otf');
  font-family: 'Polar';
}
$polar: 'Polar', Helvetica, Arial, sans-serif;
$openSans: 'Open Sans', Helvetica, Arial, sans-serif;
@mixin mediaMaxWidth($w) {
  @media (max-width: $w) {
    @content;
  }
}
*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html, body {
  font-size: 62.5%;
  height: 100%;
  overflow: hidden;
}
body {
  background: #000;
}
svg {
  display: block;
  overflow: visible;
}
.slider-container {
  position: relative;
  height: 100%;
  user-select: none;
  cursor: all-scroll;
}
.slider-control {
  z-index: 2;
  position: absolute;
  top: 0;
  width: 12%;
  height: 100%;
  transition: opacity 0.3s;
  opacity: 0;

  &.inactive:hover {
    cursor: auto;
  }

  &:not(.inactive):hover {
    opacity: 1;
    cursor: pointer;
  }

  &.left {
    left: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.18) 0%, rgba(0,0,0,0) 100%);
  }
  &.right {
    right: 0;
    background: linear-gradient(to right, rgba(0,0,0,0) 0%, rgba(0,0,0,0.18) 100%);
  }
}
.slider {
  z-index: 1;
  position: relative;
  height: 100%;

  &.animating {
    transition: transform 0.5s;

    .slide__bg {
      transition: transform 0.5s;
    }
  }
}
.slide {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;

  &.active {

    .slide__overlay,
    .slide__text{
      opacity: 1;
      transform: translateX(0);
    }
  }

  &__bg {
    position: absolute;
    top: 0;
    left: -50%;
    width: 100%;
    height: 100%;
    background-size: cover;
  }
  &:nth-child(1) {
    left: 0;

    .slide__bg {
      left: 0;
      background-image: url('http://i.imgur.com/1HeKcko.jpg');
    }

    .slide__overlay-path {
      fill: rgb(233, 156, 126);
    }

    @include mediaMaxWidth(991px) {
      .slide__text {
        background-color: rgba(233, 156, 126, 0.8);
      } 
    }
  }
  &:nth-child(2) {
    left: 100%;

    .slide__bg {
      left: -50%;
      background-image: url('http://i.imgur.com/YAdjqmQ.jpg');
    }

    .slide__overlay-path {
      fill: rgb(225, 204, 174);
    }

    @include mediaMaxWidth(991px) {
      .slide__text {
        background-color: rgba(225, 204, 174, 0.8);
      } 
    }
  }
  &:nth-child(3) {
    left: 200%;

    .slide__bg {
      left: -100%;
      background-image: url('http://i.imgur.com/3pu2X8D.jpg');
    }

    .slide__overlay-path {
      fill: rgb(173, 197, 205);
    }

    @include mediaMaxWidth(991px) {
      .slide__text {
        background-color: rgba(173, 197, 205, 0.8);
      } 
    }
  }
  &:nth-child(4) {
    left: 300%;

    .slide__bg {
      left: -150%;
      background-image: url('http://i.imgur.com/njcLNVE.jpg');
    }

    .slide__overlay-path {
      fill: rgb(203, 198, 195);
    }

    @include mediaMaxWidth(991px) {
      .slide__text {
        background-color: rgba(203, 198, 195, 0.8);
      } 
    }
  }

  &__content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }

  &__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 100%;
    min-height: 810px;
    transition: transform 0.5s 0.5s, opacity 0.2s 0.5s;
    transform: translate3d(-20%, 0, 0);
    opacity: 0;

    @include mediaMaxWidth(991px) {
      display: none;
    }

    path {
      opacity: 0.8;
    }
  }

  &__text {
    position: absolute;
    width: 25%;
    bottom: 15%;
    left: 12%;
    color: #fff;
    transition: transform 0.5s 0.8s, opacity 0.5s 0.8s;
    transform: translateY(-50%);
    opacity: 0;

    @include mediaMaxWidth(991px) {
      left: 0;
      bottom: 0;
      width: 100%;
      height: 20rem;
      text-align: center;
      transform: translateY(50%);
      transition: transform 0.5s 0.5s, opacity 0.5s 0.5s;
      padding: 0 1rem;
    }

    &-heading {
      font-family: $polar;
      font-size: 5rem;
      margin-bottom: 2rem;
      
      @include mediaMaxWidth(991px) {
        line-height: 20rem;
        font-size: 3.5rem;
      }
    }

    &-desc {
      font-family: $openSans;
      font-size: 1.8rem;
      margin-bottom: 1.5rem;

      @include mediaMaxWidth(991px) {
        display: none;
      }
    }

    &-link {
      z-index: 5;
      display: inline-block;
      position: relative;
      padding: 0.5rem;
      cursor: pointer;
      font-family: $openSans;
      font-size: 2.3rem;
      perspective: 1000px;
      
      @include mediaMaxWidth(991px) {
        display: none;
      }

      &:before {
        z-index: -1;
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: #000;
        transform-origin: 50% 100%;
        transform: rotateX(-85deg);
        transition: transform 0.3s;
      }

      &:hover:before {
        transform: rotateX(0);
      }
    }
  }
}