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javascript - 如何在另一部分使用 CSS 动画时延迟图像的出现

问题描述

我正在创建一个网页。在其中，我有移动图像的 CSS 动画，当您单击这些图像时，带有段落的更大版本的图像会显示在它们的位置。我试图拥有它，因此图像和段落的大版本被延迟，因此它会在其他图像移动后显示。我有这个单独工作，但是当我把它放在一起时，图像和段落的大版本不再延迟，我不知道为什么。这是我的代码： https ://jsfiddle.net/rfradkin/eq2h50kg/1/ 

var click = 0;
function checkClicks(imgs) {

	if(click == 0) {
		setTimeout(function(){ 
			myFunction(imgs);
		}, 10000);
	} else {
		myFunction(imgs);
	}

	click = 1;
}
function myFunction(imgs) {

	var expandImg = document.getElementById("expandedImg");
	expandImg.src = imgs.src;
	var imgParagraph = document.getElementById('img-paragraph');
	imgParagraph.innerHTML = imgs.getAttribute("yeep");

	expandImg.parentElement.style.display = "table-cell";
  imgParagraph.style.display = 'table-cell';
  document.getElementById('column1').classList.add('animate')
  document.getElementById('column2').classList.add('animate')
  document.getElementById('column3').classList.add('animate')
  document.getElementById('column4').classList.add('animate');

}
@font-face {
  font-family: 'futuralight';
  src: url('../Fonts/Futura Light/futura_light_regular-webfont.woff2') format('woff2'), url('../Fonts/Futura Light/futura_light_regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'tekoregular';
  src: url('../Fonts/Teko/teko-regular-webfont.woff2') format('woff2'), url('../Fonts/Teko/teko-regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'playfair_displayregular';
  src: url('../Fonts/Playfair Display/playfairdisplay-regular-webfont.woff2') format('woff2'), url('../Fonts/Playfair Display/playfairdisplay-regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'poppinsmedium';
  src: url('../Fonts/Poppins/poppins-medium-webfont.woff2') format('woff2'), url('../Fonts/Poppins/poppins-medium-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

* {
  margin: 0px;
  padding: 0px;
  border: 0px;
}

.topnav {
  background-color: rgb(84, 104, 217);
  overflow: hidden;
  font-family: 'futuralight';
  font-weight: 900;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 20px 21px;
  text-decoration: none;
  font-size: 19px;
  position: relative;
  left: 2%;
}

.topnav a:before {
  content: "";
  position: absolute;
  width: 84%;
  height: 2px;
  bottom: 6px;
  left: 8%;
  background-color: white;
  visibility: hidden;
  transform: scaleX(0);
  transition: all 0.3s ease-in-out 0s;
}

.topnav a:hover:before {
  visibility: visible;
  transform: scaleX(1);
}

.topnav a.active-menu:before {
  content: "";
  position: absolute;
  width: 84%;
  height: 2px;
  bottom: 6px;
  left: 8%;
  background-color: white;
  visibility: visible;
  transform: scaleX(1);
  transition: all 0.3s ease-in-out 0s;
}

.column {
  float: left;
  width: 25%;
  padding: 10px;
}


/* Style the images inside the grid */

.column img {
  opacity: 0.85;
  cursor: pointer;
}

.column img:hover {
  opacity: 1;
}

.totalbody {
  background-color: #EEF0FC;
  height: 5000px;
}


/* Clear floats after the columns */

.row:after {
  content: "";
  display: table;
  clear: both;
}


/* The expanding image container */

#expandedImg {
  width: 40%;
  padding-top:20px;
  padding-left:20px;
}


/* Expanding image text */


/* image paragraph */

#img-paragraph {
  display: none;
  vertical-align: top;
  text-align: left;
  position: absolute;
  height: 400px;
  width: 50%;
  background-color: white;
  box-shadow: 0 2.8px 2.2px rgba(0, 0, 0, 0.034), 0 6.7px 5.3px rgba(0, 0, 0, 0.048), 0 12.5px 10px rgba(0, 0, 0, 0.06), 0 22.3px 17.9px rgba(0, 0, 0, 0.072), 0 41.8px 33.4px rgba(0, 0, 0, 0.086), 0 100px 80px rgba(0, 0, 0, 0.12);
  border-radius: 7px;
  float: right;
  right: 30px;
  top: 120px;
}

#expanded-wrapper {
  width: 100%;
}


/* Closable button inside the expanded image */

.row {
  position: absolute;
  top: 80px;
}

.yeep1 {
  position: relative;
  left: 12px;
  top: 16px;
  color: rgb(84, 104, 217);
  font-weight: 900;
  font-size: 40px;
  font-family: 'futuralight';
  text-decoration: none;
  line-height: 1;
  padding-left:4%;
  padding-top:30px;
}

.yeep2 {
  color: purple;
}

.yeep3 {
  color: green;
}
.yeep4 {
  color: blue;
}

.yeep1::before {
  content: '';
  background-color: rgb(84, 104, 217);
  width: 12px;
  height: 100%;
  position: absolute;
  right: 100%;
  bottom: -16px;
}
#column1 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}

@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column2 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column3 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column4 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}

@media only screen and (max-width: 830px) and (min-width: 760px) {
  .topnav {
    background-color: yellow;
    overflow: hidden;
  }
}

@media only screen and (max-width: 759px) and (min-width: 646px) {
  .topnav {
    background-color: red;
    overflow: hidden;
  }
}

@media only screen and (max-width: 645px) {
  .topnav {
    background-color: black;
    overflow: hidden;
  }
}
<!-- I'm trying to have the images move to the bottom using a CSS animation after they are clicked. After I do this by adding the code that works for this, the function you wrote stopped working. I can't figure out why. Can you help me?-->



<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" type="text/css"  href="../CSS/styleprojects.css" />
    <script src='../Javascript/script.js'></script>
    <script src='../Javascript/fix.js'></script>
    <script src='../Javascript/jquery-3.5.1.min.js'></script>
    <title>Projects</title>
</head>
<body class='totalbody'>

  <header class="topnav" id="topnav">
    <a class="link" href="../index.html">Home</a>
    <a class="link" href="#Academics">Academics</a>
    <a class="active-menu" href="projects.html">Projects</a>
    <a class="link" href="communityservice.html">Community Service</a>
  </header>

  <div>
    <div id="expanded-wrapper">
      <img id="expandedImg">
      <p id="img-paragraph"></p>
    </div>
  </div>

  <div class="row">
    <div class="column" id='column1'>
      <img src="https://miro.medium.com/max/1200/1*mk1-6aYaf_Bes1E3Imhc0A.jpeg" alt="Nature" style="width:100%" yeep="<p class='yeep1'> Parapraph #1 </p>" onclick="myFunction(this);">
    </div>
    <div class="column" id='column2'>
      <img src="https://s.yimg.com/ny/api/res/1.2/Petngc9GmDGVfvqWtZW1uw--/YXBwaWQ9aGlnaGxhbmRlcjt3PTcwNTtoPTM4MC43/https://s.yimg.com/uu/api/res/1.2/p2FH9i2oATkHA6O0ucuC9A--~B/aD0yMTY7dz00MDA7c209MTthcHBpZD15dGFjaHlvbg--/https://media.zenfs.com/en/prnewswire.com/d908212583d777d158af74cb171ec897"
        alt="Snow" style="width:100%" yeep="<p class='yeep2'> Parapraph #2 </p>" onclick="myFunction(this);">
    </div>
    <div class="column" id='column3'>
      <img src="https://engineering.wustl.edu/news/PublishingImages/141020_jwb_brookings_007-1915x768.jpg?RenditionID=1" alt="Mountains" style="width:100%" yeep="<p class='yeep3'> Parapraph #3 </p>" onclick="myFunction(this);">
    </div>
    <div class="column" id='column4'>
      <img src="https://techcrunch.com/wp-content/uploads/2019/01/McKelvey-courtyard.jpg" alt="Lights" style="width:100%" yeep="<p class='yeep4'> Parapraph #4 </p>" onclick="myFunction(this);">

    </div>
  </div>
</body>
</html>

请看一下。我是编程新手，我能得到的任何帮助都会很有用。谢谢，如果您需要更多信息，请告诉我。

标签： javascripthtmlcss

解决方案

好的，快速解释这段代码......我们有 HTML 元素的 onclick 调用该函数handleClick并将其传递给它，this也就是被点击的 img。

在我们的处理程序中，我们从 src 属性中获取图像的来源，以及该yeep属性中包含的 p 元素。然后我们循环遍历每一列设置动画，当我们到达最后一列时，我们为动画创建一个变量并添加一个带有回调的事件处理程序（它需要被包装在一个匿名函数中，否则它不会正常工作）。我们将 column4（或最后一个）元素与 src 和 yeep 属性内容作为参数一起传递给回调。

一旦我们的动画完成，我们的回调就会触发，然后将较大的图像源和段落内容设置为它们各自的元素，然后设置它们的显示以使它们可见。

var click = 0;
function checkClicks(imgs) {

	if(click == 0) {
		setTimeout(function(){ 
			myFunction(imgs);
		}, 10000);
	} else {
		myFunction(imgs);
	}

	click = 1;
}

function whichAnimationEvent(){
  var t,
      el = document.createElement("fakeelement");

  var animations = {
    "animation"      : "animationend",
    "OAnimation"     : "oAnimationEnd",
    "MozAnimation"   : "animationend",
    "WebkitAnimation": "webkitAnimationEnd"
  }

  for (t in animations){
    if (el.style[t] !== undefined){
      return animations[t];
    }
  }
}

const customCallback = (e, s, y) => {
  let p = document.getElementById("img-paragraph");
  p.innerHTML = y;
  var expImg = document.getElementById("expandedImg");
  expImg.src = s;
  expImg.parentElement.style.display = "table-cell";
  p.style.display = "table-cell";
  let ele = document.getElementById("column4");
  ele.removeEventListener(window.animationEvent, customCallback);
}

const handleClick = (e) => {
  let yeep = e.getAttribute("yeep");
  let eleArr = ["column1", "column2", "column3", "column4"];
  for (ele in eleArr) {
    let thisEle = document.getElementById(eleArr[ele]);
    if (thisEle.classList) thisEle.classList.add('animate')
      else thisEle.className += " " + "animate";
    if (eleArr[ele] === "column4") {
      var animationEvent = whichAnimationEvent();
      thisEle.addEventListener(animationEvent, () => customCallback(thisEle, e.src, yeep));
    }
  }
}
@font-face {
  font-family: 'futuralight';
  src: url('../Fonts/Futura Light/futura_light_regular-webfont.woff2') format('woff2'), url('../Fonts/Futura Light/futura_light_regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'tekoregular';
  src: url('../Fonts/Teko/teko-regular-webfont.woff2') format('woff2'), url('../Fonts/Teko/teko-regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'playfair_displayregular';
  src: url('../Fonts/Playfair Display/playfairdisplay-regular-webfont.woff2') format('woff2'), url('../Fonts/Playfair Display/playfairdisplay-regular-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'poppinsmedium';
  src: url('../Fonts/Poppins/poppins-medium-webfont.woff2') format('woff2'), url('../Fonts/Poppins/poppins-medium-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}

* {
  margin: 0px;
  padding: 0px;
  border: 0px;
}

.topnav {
  background-color: rgb(84, 104, 217);
  overflow: hidden;
  font-family: 'futuralight';
  font-weight: 900;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 20px 21px;
  text-decoration: none;
  font-size: 19px;
  position: relative;
  left: 2%;
}

.topnav a:before {
  content: "";
  position: absolute;
  width: 84%;
  height: 2px;
  bottom: 6px;
  left: 8%;
  background-color: white;
  visibility: hidden;
  transform: scaleX(0);
  transition: all 0.3s ease-in-out 0s;
}

.topnav a:hover:before {
  visibility: visible;
  transform: scaleX(1);
}

.topnav a.active-menu:before {
  content: "";
  position: absolute;
  width: 84%;
  height: 2px;
  bottom: 6px;
  left: 8%;
  background-color: white;
  visibility: visible;
  transform: scaleX(1);
  transition: all 0.3s ease-in-out 0s;
}

.column {
  float: left;
  width: 25%;
  padding: 10px;
}


/* Style the images inside the grid */

.column img {
  opacity: 0.85;
  cursor: pointer;
}

.column img:hover {
  opacity: 1;
}

.totalbody {
  background-color: #EEF0FC;
  height: 5000px;
}


/* Clear floats after the columns */

.row:after {
  content: "";
  display: table;
  clear: both;
}


/* The expanding image container */

#expandedImg {
  width: 40%;
  padding-top:20px;
  padding-left:20px;
}


/* Expanding image text */


/* image paragraph */

#img-paragraph {
  display: none;
  vertical-align: top;
  text-align: left;
  position: absolute;
  height: 400px;
  width: 50%;
  background-color: white;
  box-shadow: 0 2.8px 2.2px rgba(0, 0, 0, 0.034), 0 6.7px 5.3px rgba(0, 0, 0, 0.048), 0 12.5px 10px rgba(0, 0, 0, 0.06), 0 22.3px 17.9px rgba(0, 0, 0, 0.072), 0 41.8px 33.4px rgba(0, 0, 0, 0.086), 0 100px 80px rgba(0, 0, 0, 0.12);
  border-radius: 7px;
  float: right;
  right: 30px;
  top: 120px;
}

#expanded-wrapper {
  width: 100%;
}


/* Closable button inside the expanded image */

.row {
  position: absolute;
  top: 80px;
}

.yeep1 {
  position: relative;
  left: 12px;
  top: 16px;
  color: rgb(84, 104, 217);
  font-weight: 900;
  font-size: 40px;
  font-family: 'futuralight';
  text-decoration: none;
  line-height: 1;
  padding-left:4%;
  padding-top:30px;
}

.yeep2 {
  color: purple;
}

.yeep3 {
  color: green;
}
.yeep4 {
  color: blue;
}

.yeep1::before {
  content: '';
  background-color: rgb(84, 104, 217);
  width: 12px;
  height: 100%;
  position: absolute;
  right: 100%;
  bottom: -16px;
}
#column1 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}

@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column2 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column3 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}
#column4 {
  position: relative;
}

.animate {
  -webkit-animation: floatBubble 2s normal ease-out;
  animation: floatBubble 2s forwards normal ease-out;
}
@-webkit-keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
  }
}
@keyframes floatBubble {
  0% {
      top:00px;
  }
  100% {
      top: 500px;
      left:50px;
  }
}

@media only screen and (max-width: 830px) and (min-width: 760px) {
  .topnav {
    background-color: yellow;
    overflow: hidden;
  }
}

@media only screen and (max-width: 759px) and (min-width: 646px) {
  .topnav {
    background-color: red;
    overflow: hidden;
  }
}

@media only screen and (max-width: 645px) {
  .topnav {
    background-color: black;
    overflow: hidden;
  }
}
<!-- I'm trying to have the images move to the bottom using a CSS animation after they are clicked. After I do this by adding the code that works for this, the function you wrote stopped working. I can't figure out why. Can you help me?-->



<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" type="text/css"  href="../CSS/styleprojects.css" />
    <script src='../Javascript/script.js'></script>
    <script src='../Javascript/fix.js'></script>
    <script src='../Javascript/jquery-3.5.1.min.js'></script>
    <title>Projects</title>
</head>
<body class='totalbody'>

  <header class="topnav" id="topnav">
    <a class="link" href="../index.html">Home</a>
    <a class="link" href="#Academics">Academics</a>
    <a class="active-menu" href="projects.html">Projects</a>
    <a class="link" href="communityservice.html">Community Service</a>
  </header>

  <div>
    <div id="expanded-wrapper">
      <img id="expandedImg">
      <p id="img-paragraph"></p>
    </div>
  </div>

  <div class="row">
    <div class="column" id='column1'>
      <img src="https://miro.medium.com/max/1200/1*mk1-6aYaf_Bes1E3Imhc0A.jpeg" alt="Nature" style="width:100%" yeep="<p class='yeep1'> Parapraph #1 </p>" onclick="handleClick(this);">
    </div>
    <div class="column" id='column2'>
      <img src="https://s.yimg.com/ny/api/res/1.2/Petngc9GmDGVfvqWtZW1uw--/YXBwaWQ9aGlnaGxhbmRlcjt3PTcwNTtoPTM4MC43/https://s.yimg.com/uu/api/res/1.2/p2FH9i2oATkHA6O0ucuC9A--~B/aD0yMTY7dz00MDA7c209MTthcHBpZD15dGFjaHlvbg--/https://media.zenfs.com/en/prnewswire.com/d908212583d777d158af74cb171ec897"
        alt="Snow" style="width:100%" yeep="<p class='yeep2'> Parapraph #2 </p>" onclick="handleClick(this);">
    </div>
    <div class="column" id='column3'>
      <img src="https://engineering.wustl.edu/news/PublishingImages/141020_jwb_brookings_007-1915x768.jpg?RenditionID=1" alt="Mountains" style="width:100%" yeep="<p class='yeep3'> Parapraph #3 </p>" onclick="handleClick(this);">
    </div>
    <div class="column" id='column4'>
      <img src="https://techcrunch.com/wp-content/uploads/2019/01/McKelvey-courtyard.jpg" alt="Lights" style="width:100%" yeep="<p class='yeep4'> Parapraph #4 </p>" onclick="handleClick(this);">

    </div>
  </div>
</body>
</html>

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