使用js进行CSS3动画播放/暂停

时间：2015-05-05 01:02:46

标签： javascript html css3 animation

我需要在我的网站上制作一个能够暂停并继续播放的动画。我一直在努力让这个工作，并最终在某处暂停其中一个需要暂停的图像。我无法弄清楚如何暂停所有图像，任何人都可以帮助我吗？

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// JavaScript Document
var play = document.getElementById("play");
var pause = document.getElementById("pause");
var animated = document.getElementsByClassName("animated");
play.addEventListener('click', playAnimation);
pause.addEventListener('click', pauseAnimation);

function playAnimation() {
  for (var i = 0; i < animated.length; i += 1) {
    animated[i].style.WebkitAnimationPlayState = "running";
    animated[i].style.animationPlayState = "running";
  }
}

function pauseAnimation() {
  for (var i = 0; i < animated.length; i += 1) {
    animated[i].style.WebkitAnimationPlayState = "paused";
    animated[i].style.animationPlayState = "paused";
  }
}
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@charset "utf-8";

/* CSS Document */

body {
  margin: 0;
}
.wrapper {
  width: 100%;
  margin: 0 auto;
}
main {
  display: block;
  background-color: #fff;
}
.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}
header {
  height: 75px;
  background: #ebebeb url(img/taylor%20logo.png) no-repeat center;
  background-size: 150px 47.75px;
}
section.module.parallax {
  height: 600px;
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-attachment: fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}
section.module.parallax-1 {
  background-image: url(img/tay1.png);
}
section.module.parallax-2 {
  background-image: url(img/taylor-swift-009.jpg);
}
section.module.parallax-3 {
  background-image: url(img/Taylor-Swift.jpg);
}
section.module.content {
  padding: 40px 0;
  background: #fff0fb;
}
section.module p {
  margin-bottom: 40px;
  font-size: 16px;
  font-weight: 300;
  color: #7a7a7a;
}
footer {
  padding: 20px 5px;
  background: #EBEBEB;
  color: #514f4f;
}
footer nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: right;
}
footer nav li {
  display: inline-block;
}
footer nav a {
  display: block;
  margin: 0 5px;
  color: #fff;
}
.social:hover {
  -webkit-transform: scale(1.2);
  transform: scale(1.2);
}
.social {
  -webkit-transition: all 0.7s ease;
  transition: all 0.7s ease;
}
/*****ANIMATION*****/

#animation {
  height: 450px;
  width: 1000px;
  background: url(img/scene.png) fixed no-repeat center;
}
#animation:hover {
  animation-play-state: paused;
  -webkit-animation-play-state: paused;
}
.flash {
  position: relative;
  height: 50px;
  width: 50px;
  margin: 0 auto;
  background: url(img/spritesheet.png) no-repeat left center;
}
@keyframes play {
  100% {
    background-position: -100px;
  }
}
@-webkit-keyframes play {
  100% {
    background-position: -100px;
  }
}
.flash-1 {
  animation: play .5s steps(2) infinite;
  -webkit-animation: play .5s steps(2) infinite;
  top: 50px;
  left: 400px;
}
.flash-2 {
  left: 100px;
  animation: play .5s steps(2) infinite;
  animation-delay: .2s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .2s;
}
.flash-3 {
  left: 350px;
  animation: play .5s steps(2) infinite;
  animation-delay: .3s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .3s;
}
.flash-4 {
  left: 70px;
  bottom: 80px;
  animation: play .5s steps(2) infinite;
  animation-delay: 1s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: 1s;
}
.flash-5 {
  left: 375px;
  bottom: 70px;
  animation: play .5s steps(2) infinite;
  animation-delay: .2s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .2s;
}
.flash-6 {
  bottom: 100px;
  animation: play .5s steps(2) infinite;
  animation-delay: .2s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .2s;
}
.flash-7 {
  bottom: 290px;
  left: 170px;
  animation: play .5s steps(2) infinite;
  animation-delay: .4s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .4s;
}
.flash-8 {
  bottom: 150px;
  left: 200px;
  animation: play .5s steps(2) infinite;
  animation-delay: .3s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .3s;
}
.flash-9 {
  bottom: 370px;
  left: 450px;
  animation: play .5s steps(2) infinite;
  animation-delay: .7s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .7s;
}
.flash-10 {
  bottom: 300px;
  left: 100px;
  animation: play .5s steps(2) infinite;
  animation-delay: .9s;
  -webkit-animation: play .5s steps(2) infinite;
  -webkit-animation-delay: .9s;
}
.speech img {
  position: absolute;
  left: 0;
  animation-name: speechFadeInOut;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-duration: 1s;
  animation-direction: alternate;
  -webkit-animation-name: speechFadeInOut;
  -webkit-animation-timing-function: linear;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-duration: 1s;
  -webkit-animation-direction: alternate;
  -webkit-transition: opacity 1s linear;
  -moz-transition: opacity 1s linear;
  -o-transition: opacity 1s linear;
  transition: opacity 1s linear;
}
.speech {
  position: relative;
  height: 100px;
  width: 100px;
}
.speech-1 {
  bottom: 750px;
  left: 420px;
}
.speech-2 {
  bottom: 900px;
  left: 900px;
}
@keyframes speechFadeInOut {
  0% {
    opacity: 0;
  }
  45% {
    opacity: 0.2;
  }
  55% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@-moz-keyframes speechFadeInOut {
  0% {
    opacity: 0;
  }
  45% {
    opacity: 0.2;
  }
  55% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes speechFadeInOut {
  0% {
    opacity: 0;
  }
  45% {
    opacity: 0.2;
  }
  55% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
#taylorCartoon {
  position: relative;
  bottom: 380px;
  left: 820px;
  animation-name: taylorWalk;
  animation-timing-function: ease-in-out;
  animation-iteration-count: 1;
  animation-duration: 10s;
  animation-direction: alternate;
  animation-delay: 2s;
  -webkit-animation-name: taylorWalk;
  -webkit-animation-timing-function: ease-in-out;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-duration: 10s;
  -webkit-animation-direction: alternate;
  -webkit-animation-delay: 2s;
}
@keyframes taylorWalk {
  from {
    left: 820px;
  }
  to {
    left: 420px;
    opacity: 0%;
  }
}
@-webkit-keyframes taylorWalk {
  from {
    left: 820px;
  }
  to {
    left: 420px;
    opacity: 0%;
  }
}
@-moz-keyframes taylorWalk {
  from {
    left: 820px;
  }
  to {
    left: 420px;
    opacity: 0%;
  }
}
.control {
  height: 60px;
  width: 60px;
  border: 0;
  padding: 5px;
  display: inline-block;
}
.playHolder {
  background: url(img/play.png) no-repeat;
  background-size: 100%;
  margin-left: 100px;
}
.pauseHolder {
  background: url(img/pause.png) no-repeat;
  background-size: 100%;
  margin-left: 100px;
}
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<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <link href="style.css" media="all" rel="stylesheet">
  <script src="modernizr.js"></script>
  <title>Taylor Swift</title>
</head>

<body>
  <div class="wrapper">
    <div>
      <header>
      </header>
    </div>
    <main>
      <section class="module parallax parallax-1">
        <div class="container">
        </div>
      </section>
      <section class="module content">
        <div class="container">
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur
            adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p>
        </div>
      </section>
      <section class="module parallax parallax-2">
        <div class="container">
        </div>
      </section>
      <section class="module content">
        <div class="container">
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur
            adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p>
        </div>
      </section>
      <section class="module parallax parallax-3">
        <div class="container">
        </div>
      </section>
      <section class="module content">
        <div class="container">
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur
            adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p>
        </div>
      </section>
      MUSIC VIDEO
      <section class="module content">
        <div class="container">
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur
            adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p>
        </div>
      </section>
      <div id="animation" class="animated">
        <div class="flash flash-1" class="animated">
        </div>
        <div class="flash flash-2" class="animated">
        </div>
        <div class="flash flash-3" class="animated">
        </div>
        <div class="flash flash-4" class="animated">
        </div>
        <div class="flash flash-5" class="animated">
        </div>
        <div class="flash flash-6" class="animated">
        </div>
        <div class="flash flash-7" class="animated">
        </div>
        <div class="flash flash-8" class="animated">
        </div>
        <div class="flash flash-9" class="animated">
        </div>
        <div class="flash flash-10" class="animated">
        </div>
        <div id="taylorCartoon" class="animated">
          <img src="img/taylor cartoon .png" width="181" height="300" />
        </div>
        <div class="speech speech-1" class="animated">
          <img src="img/SPEECH1.png" width="100" height="99" />
        </div>
        <div class="speech speech-2" class="animated">
          <img src="img/speech2.png" width="100" height="99" />
        </div>
      </div>
      <div>
        <button type="button" class="button" id="play">Play</button>
        <button type="button" class="button" id="pause">Pause</button>
      </div>
    </main>
    <footer>
      <div class="copyright">
        <small>
              &copy; Lana Yaffe 2015 | Taylor Swift
            </small>
      </div>
      <nav>
        <ul>
          <li class="social">
            <a href="http://http://taylorswift.tumblr.com/">
              <img src="img/Tumblr.png" />
            </a>
          </li>
          <li class="social">
            <a href="http://twitter.com/taylorswift13">
              <img src="img/Twitter.png" />
            </a>
          </li>
          <li class="social">
            <a href="https://www.facebook.com/TaylorSwift">
              <img src="img/Facebook.png" />
            </a>
          </li>
          <li class="social">
            <a href="https://instagram.com/taylorswift/">
              <img src="img/Instagram.png" />
            </a>
          </li>
        </ul>
      </nav>
    </footer>
  </div>
  <script src="js.js"></script>
</body>

</html>
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1 个答案:

答案 0 :(得分：0)

如果您希望类.animated的所有动画停止运行，您可以执行以下操作：

body.pause .animated {
    animation-play-state: paused;
}

然后做：

function pause_all() {
    document.body.className = "pause";
}

function play_all() {
    document.body.className = "";
}

我不知道这是否有效，因为如果没有图像，很难看出动画是否正常工作。

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