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브라우저 간 JavaScript(jQuery가 아님)를 스크롤하여 상단 애니메이션으로 이동합니다.
링크에 적용할 수 있는 간단한 크로스 브라우저 "스크롤 투 톱" 애니메이션을 찾고 있습니다.jQuery/Moo 등의 JS 라이브러리는 필요 없습니다.
// jQuery Equivilant to convert to pure JS...
$('html, body').animate({scrollTop:0}, 400);
저는 도서관에 뛰어들기 전에 JS를 100% 배웠어야 하는 사람에게 완벽한 경우입니다. : (
function scrollTo(element, to, duration) {
if (duration <= 0) return;
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop === to) return;
scrollTo(element, to, duration - 10);
}, 10);
}
데모:
function runScroll() {
scrollTo(document.body, 0, 600);
}
var scrollme;
scrollme = document.querySelector("#scrollme");
scrollme.addEventListener("click",runScroll,false)
function scrollTo(element, to, duration) {
if (duration <= 0) return;
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop == to) return;
scrollTo(element, to, duration - 10);
}, 10);
}<p>Very long page.Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. 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</p>
<button id=scrollme type="button">To the top</button>이미 많은 해결책이 있는 것 같습니다.어쨌든, 여기 또 있어요 쉬운 방정식을 사용하죠
// first add raf shim
// http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
window.requestAnimFrame = (function(){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function( callback ){
window.setTimeout(callback, 1000 / 60);
};
})();
// main function
function scrollToY(scrollTargetY, speed, easing) {
// scrollTargetY: the target scrollY property of the window
// speed: time in pixels per second
// easing: easing equation to use
var scrollY = window.scrollY || document.documentElement.scrollTop,
scrollTargetY = scrollTargetY || 0,
speed = speed || 2000,
easing = easing || 'easeOutSine',
currentTime = 0;
// min time .1, max time .8 seconds
var time = Math.max(.1, Math.min(Math.abs(scrollY - scrollTargetY) / speed, .8));
// easing equations from https://github.com/danro/easing-js/blob/master/easing.js
var easingEquations = {
easeOutSine: function (pos) {
return Math.sin(pos * (Math.PI / 2));
},
easeInOutSine: function (pos) {
return (-0.5 * (Math.cos(Math.PI * pos) - 1));
},
easeInOutQuint: function (pos) {
if ((pos /= 0.5) < 1) {
return 0.5 * Math.pow(pos, 5);
}
return 0.5 * (Math.pow((pos - 2), 5) + 2);
}
};
// add animation loop
function tick() {
currentTime += 1 / 60;
var p = currentTime / time;
var t = easingEquations[easing](p);
if (p < 1) {
requestAnimFrame(tick);
window.scrollTo(0, scrollY + ((scrollTargetY - scrollY) * t));
} else {
console.log('scroll done');
window.scrollTo(0, scrollTargetY);
}
}
// call it once to get started
tick();
}
// scroll it!
scrollToY(0, 1500, 'easeInOutQuint');
window.scroll({top: 0, left: 0, behavior: 'smooth' });
필요한 경우, 사용 가능한 폴리 매립지가 있습니다.
TimWolla의 답변을 수정하여 2차 인아웃 완화(약간 부드러움 :)를 사용했습니다.다음으로 동작 예를 제시하겠습니다.jsFiddle 。이완 기능은 Robert Penner의 이완 기능을 이용할 수 있습니다.
document.getElementsByTagName('button')[0].onclick = function () {
scrollTo(document.body, 0, 1250);
}
function scrollTo(element, to, duration) {
var start = element.scrollTop,
change = to - start,
increment = 20;
var animateScroll = function(elapsedTime) {
elapsedTime += increment;
var position = easeInOut(elapsedTime, start, change, duration);
element.scrollTop = position;
if (elapsedTime < duration) {
setTimeout(function() {
animateScroll(elapsedTime);
}, increment);
}
};
animateScroll(0);
}
function easeInOut(currentTime, start, change, duration) {
currentTime /= duration / 2;
if (currentTime < 1) {
return change / 2 * currentTime * currentTime + start;
}
currentTime -= 1;
return -change / 2 * (currentTime * (currentTime - 2) - 1) + start;
}
JQuery 코드가 없으면 도움이 됩니다.
function TopscrollTo() {
if(window.scrollY!=0)
{
setTimeout(function() {
window.scrollTo(0,window.scrollY-30);
TopscrollTo();
}, 100);
}
}
이 TopscrollTo() 함수는 버튼을 클릭할 때 이벤트 또는 원하는 다른 요소/이벤트에서 호출합니다.
@TimWolla의 코드를 수정하여 옵션과 이동 기능을 추가하였습니다.또한 document.body.scrollTop 및 document.documentElement.scrollTop을 사용하는 크로스브라우저 지원이 추가되었습니다.
// scroll to top
scrollTo(0, 1000);
// Element to move, time in ms to animate
function scrollTo(element, duration) {
var e = document.documentElement;
if(e.scrollTop===0){
var t = e.scrollTop;
++e.scrollTop;
e = t+1===e.scrollTop--?e:document.body;
}
scrollToC(e, e.scrollTop, element, duration);
}
// Element to move, element or px from, element or px to, time in ms to animate
function scrollToC(element, from, to, duration) {
if (duration <= 0) return;
if(typeof from === "object")from=from.offsetTop;
if(typeof to === "object")to=to.offsetTop;
scrollToX(element, from, to, 0, 1/duration, 20, easeOutCuaic);
}
function scrollToX(element, xFrom, xTo, t01, speed, step, motion) {
if (t01 < 0 || t01 > 1 || speed<= 0) {
element.scrollTop = xTo;
return;
}
element.scrollTop = xFrom - (xFrom - xTo) * motion(t01);
t01 += speed * step;
setTimeout(function() {
scrollToX(element, xFrom, xTo, t01, speed, step, motion);
}, step);
}
function easeOutCuaic(t){
t--;
return t*t*t+1;
}
http://jsfiddle.net/forestrf/tPQSv/
최소판 : http://jsfiddle.net/forestrf/tPQSv/139/
// c = element to scroll to or top position in pixels
// e = duration of the scroll in ms, time scrolling
// d = (optative) ease function. Default easeOutCuaic
function scrollTo(c,e,d){d||(d=easeOutCuaic);var a=document.documentElement;if(0===a.scrollTop){var b=a.scrollTop;++a.scrollTop;a=b+1===a.scrollTop--?a:document.body}b=a.scrollTop;0>=e||("object"===typeof b&&(b=b.offsetTop),"object"===typeof c&&(c=c.offsetTop),function(a,b,c,f,d,e,h){function g(){0>f||1<f||0>=d?a.scrollTop=c:(a.scrollTop=b-(b-c)*h(f),f+=d*e,setTimeout(g,e))}g()}(a,b,c,0,1/e,20,d))};
function easeOutCuaic(t){
t--;
return t*t*t+1;
}
CSS 속성 스크롤 동작에 대해서는 아무도 언급하지 않았습니다.
CSS
html {
scroll-behavior: smooth;
}
JS
window.scrollTo(0,0)
function scroll(y, duration) {
var initialY = document.documentElement.scrollTop || document.body.scrollTop;
var baseY = (initialY + y) * 0.5;
var difference = initialY - baseY;
var startTime = performance.now();
function step() {
var normalizedTime = (performance.now() - startTime) / duration;
if (normalizedTime > 1) normalizedTime = 1;
window.scrollTo(0, baseY + difference * Math.cos(normalizedTime * Math.PI));
if (normalizedTime < 1) window.requestAnimationFrame(step);
}
window.requestAnimationFrame(step);
}
이를 통해 어디서든 지정된 "y"까지 부드럽게 스크롤(코사인 기능)할 수 있습니다.
자바스크립트를 사용하지 않고 할 수 있는 순수한 .setTimeout ★★★★★★★★★★★★★★★★★」requestAnimationFramejQuery 입니다.
즉, 스크롤할 요소를 스크롤 뷰에서 찾아 스크롤 Into View를 사용합니다.
el.scrollIntoView({behavior:"smooth"});
여기 플렁크러가 있습니다.
순수 자바스크립트 스크롤러 클래스
오래된 질문이지만 애니메이션에 대한 통제력을 좀 더 갖고 싶다면 화려한 것들과 더 많은 옵션으로 대답할 수 있을 것 같아서요.
다음은 스크롤을 관리하는 순수 JS 클래스입니다.
CODEPEN에서 데모 보기 또는 바닥으로 이동하여 SINPET 실행
// ------------------- USE EXAMPLE ---------------------
// *Set options
var options = {
'showButtonAfter': 200, // show button after scroling down this amount of px
'animate': "linear", // [false|normal|linear] - for false no aditional settings are needed
'normal': { // applys only if [animate: normal] - set scroll loop distanceLeft/steps|ms
'steps': 20, // the more steps per loop the slower animation gets
'ms': 10 // the less ms the quicker your animation gets
},
'linear': { // applys only if [animate: linear] - set scroll px|ms
'px': 30, // the more px the quicker your animation gets
'ms': 10 // the less ms the quicker your animation gets
},
};
// *Create new Scroller and run it.
var scroll = new Scroller(options);
scroll.init();
풀 클래스 스크립트 + 사용 예:
// PURE JAVASCRIPT (OOP)
function Scroller(options) {
this.options = options;
this.button = null;
this.stop = false;
}
Scroller.prototype.constructor = Scroller;
Scroller.prototype.createButton = function() {
this.button = document.createElement('button');
this.button.classList.add('scroll-button');
this.button.classList.add('scroll-button--hidden');
this.button.textContent = "^";
document.body.appendChild(this.button);
}
Scroller.prototype.init = function() {
this.createButton();
this.checkPosition();
this.click();
this.stopListener();
}
Scroller.prototype.scroll = function() {
if (this.options.animate == false || this.options.animate == "false") {
this.scrollNoAnimate();
return;
}
if (this.options.animate == "normal") {
this.scrollAnimate();
return;
}
if (this.options.animate == "linear") {
this.scrollAnimateLinear();
return;
}
}
Scroller.prototype.scrollNoAnimate = function() {
document.body.scrollTop = 0;
document.documentElement.scrollTop = 0;
}
Scroller.prototype.scrollAnimate = function() {
if (this.scrollTop() > 0 && this.stop == false) {
setTimeout(function() {
this.scrollAnimate();
window.scrollBy(0, (-Math.abs(this.scrollTop()) / this.options.normal['steps']));
}.bind(this), (this.options.normal['ms']));
}
}
Scroller.prototype.scrollAnimateLinear = function() {
if (this.scrollTop() > 0 && this.stop == false) {
setTimeout(function() {
this.scrollAnimateLinear();
window.scrollBy(0, -Math.abs(this.options.linear['px']));
}.bind(this), this.options.linear['ms']);
}
}
Scroller.prototype.click = function() {
this.button.addEventListener("click", function(e) {
e.stopPropagation();
this.scroll();
}.bind(this), false);
this.button.addEventListener("dblclick", function(e) {
e.stopPropagation();
this.scrollNoAnimate();
}.bind(this), false);
}
Scroller.prototype.hide = function() {
this.button.classList.add("scroll-button--hidden");
}
Scroller.prototype.show = function() {
this.button.classList.remove("scroll-button--hidden");
}
Scroller.prototype.checkPosition = function() {
window.addEventListener("scroll", function(e) {
if (this.scrollTop() > this.options.showButtonAfter) {
this.show();
} else {
this.hide();
}
}.bind(this), false);
}
Scroller.prototype.stopListener = function() {
// stop animation on slider drag
var position = this.scrollTop();
window.addEventListener("scroll", function(e) {
if (this.scrollTop() > position) {
this.stopTimeout(200);
} else {
//...
}
position = this.scrollTop();
}.bind(this, position), false);
// stop animation on wheel scroll down
window.addEventListener("wheel", function(e) {
if (e.deltaY > 0) this.stopTimeout(200);
}.bind(this), false);
}
Scroller.prototype.stopTimeout = function(ms) {
this.stop = true;
// console.log(this.stop); //
setTimeout(function() {
this.stop = false;
console.log(this.stop); //
}.bind(this), ms);
}
Scroller.prototype.scrollTop = function() {
var curentScrollTop = document.documentElement.scrollTop || document.body.scrollTop;
return curentScrollTop;
}
// ------------------- USE EXAMPLE ---------------------
// *Set options
var options = {
'showButtonAfter': 200, // show button after scroling down this amount of px
'animate': "normal", // [false|normal|linear] - for false no aditional settings are needed
'normal': { // applys only if [animate: normal] - set scroll loop distanceLeft/steps|ms
'steps': 20, // the more steps per loop the slower animation gets
'ms': 10 // the less ms the quicker your animation gets
},
'linear': { // applys only if [animate: linear] - set scroll px|ms
'px': 30, // the more px the quicker your animation gets
'ms': 10 // the less ms the quicker your animation gets
},
};
// *Create new Scroller and run it.
var scroll = new Scroller(options);
scroll.init();/* CSS */
@import url(https://fonts.googleapis.com/css?family=Open+Sans);
body {
font-family: 'Open Sans', sans-serif;
font-size: 1.2rem;
line-height: 2rem;
height: 100%;
position: relative;
padding: 0 25%;
}
.scroll-button {
font-size: 1.2rem;
line-height: 2rem;
padding: 10px;
width: 50px;
height: 50px;
background: black;
color: white;
border-radius: 50%;
position: fixed;
right: 20px;
bottom: 20px;
visibility: visible;
filter: alpha(opacity=50);
filter: progid: DXImageTransform.Microsoft.Alpha(Opacity=50);
opacity: 0.5;
cursor: pointer;
transition: all 1.2s;
-webkit-transition: all 1.2s;
-moz-transition: all 1.2s;
-ms-transition: all 1.2s;
-o-transition: all 1.2s;
}
.scroll-button:hover {
filter: alpha(opacity=100);
filter: progid: DXImageTransform.Microsoft.Alpha(Opacity=100);
opacity: 1;
}
.scroll-button--hidden {
filter: alpha(opacity=0);
filter: progid: DXImageTransform.Microsoft.Alpha(Opacity=0);
opacity: 0;
visibility: hidden;
}<!-- HTML -->
<h1>Scroll down by 200px for button to appear</h1>
<ul>
<li>Cross-browser</li>
<li>Copy/Paste solution</li>
<li>3 animate modes: <b>["normal"|"linear"|false]</b></li>
<li>Customize your aniamtion with aveilable settings - make it snapy or fluent</li>
<li>Double click to skip animation</li>
<li>Every next single click adds initial speed</li>
<li>Stop scroll animation by draging down the scroll bar</li>
<li>Stop scroll animation by mouse wheel down</li>
<li>Animated button fade-in-out on scroll</li>
</ul>
<br />
<br />
<pre>
// ------------------- USE EXAMPLE ---------------------
// *Set options
var options = {
'showButtonAfter': 200, // show button after scroling down this amount of px
'animate': "normal", // [false|normal|linear] - for false no aditional settings are needed
'normal': { // applys only if [animate: normal] - set scroll loop distanceLeft/steps|ms
'steps': 20, // the more steps the slower animation gets
'ms': 20 // the less ms the quicker your animation gets
},
'linear': { // applys only if [animate: linear] - set scroll px|ms
'px': 55, // the more px the quicker your animation gets
'ms': 10 // the less ms the quicker your animation gets
},
};
// *Create new Scroller and run it.
var scroll = new Scroller(options);
scroll.init();
</pre>
<br />
<br />
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<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Obcaecati quibusdam, tempora cupiditate quaerat tempore ullam delectus voluptates optio eum placeat provident consequatur iure reprehenderit vero quae sapiente architecto earum nemo.</span><span>Quis molestias sint fuga doloribus, necessitatibus nulla. Esse ipsa, itaque asperiores. Tempora a sequi nobis cumque incidunt aspernatur, pariatur rem voluptatibus. Atque veniam magnam, ea laudantium ipsum reprehenderit sapiente repellendus.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, pariatur at explicabo aliquid repudiandae vero eum quasi totam voluptates iusto unde ad repellendus ipsam et voluptatem hic adipisci! Vero, nobis!</span><span>Consequatur eligendi quo quas omnis architecto dolorum aperiam doloremque labore, explicabo enim incidunt vitae saepe, quod soluta illo odit provident amet beatae quasi animi. Similique nostrum molestiae animi corrupti qui?</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Molestias quis, tempora laborum incidunt qui fuga adipisci doloremque iusto commodi vitae est, nemo iure placeat ut sit optio, consequuntur voluptas impedit.</span><span>Eos officiis, hic esse unde eaque, aut tenetur voluptate quam sint vel exercitationem totam dolor odio soluta illo praesentium non corrupti! Consequuntur velit, mollitia excepturi. Minus, veniam accusantium! Aliquam, ea!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Reprehenderit quis reiciendis veritatis expedita velit vitae amet magni sunt rerum in blanditiis aut tempore quia fugiat, voluptates officia quaerat quam id.</span><span>Sapiente tempore repudiandae, quae doloremque ullam odio quia ea! Impedit atque, ipsa consequatur quis obcaecati voluptas necessitatibus, cupiditate sunt amet ab modi illum inventore, a dolor enim similique architecto est!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Itaque non aliquam, sit illo quas deserunt esse nobis reprehenderit quidem fuga beatae eligendi reiciendis omnis qui repellat velit earum blanditiis possimus.</span><span>Provident aspernatur ducimus, illum beatae debitis vitae non dolorum rem officia nostrum natus accusantium perspiciatis ad soluta maiores praesentium eveniet qui hic quis at quaerat ea perferendis. Ut, aut, natus.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ratione corrupti quibusdam, sed hic veniam. Perspiciatis ex, quod architecto natus autem totam at commodi excepturi maxime pariatur corporis, veritatis vero, praesentium.</span><span>Nesciunt suscipit, nobis eos perferendis ex quaerat inventore nihil qui magnam saepe rerum velit reiciendis ipsam deleniti ducimus eligendi odio eius minima vero, nisi voluptates amet eaque, iste, labore laudantium.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo, voluptas accusantium ad omnis velit distinctio! Adipisci magnam nihil nostrum molestiae rem dolores, ut ad nemo, dolor quos itaque maiores quaerat!</span><span>Quia ad suscipit reprehenderit vitae inventore eius non culpa maiores omnis sit obcaecati vel placeat quibusdam, ipsa exercitationem nam odit, magni nobis. Quam quas, accusamus expedita molestiae asperiores eaque ex?</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rerum explicabo doloribus nihil iusto quasi vel expedita dignissimos amet mollitia, temporibus aut atque architecto assumenda dolorum nam velit deserunt totam numquam.</span><span>Ab perferendis labore, quae. Quidem architecto quo officia deserunt ea doloribus libero molestias id nisi perferendis eum porro, quibusdam! Odit aliquid placeat rem aut officia minus sit esse eos obcaecati!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Eligendi nostrum repellendus placeat, unde aperiam. Fuga, voluptas, minima. Debitis nemo ducimus itaque laboriosam error quaerat reprehenderit quo animi incidunt. Nulla, quis!</span><span>Explicabo assumenda dicta ratione? Tempora commodi asperiores, explicabo doloremque eius quia impedit possimus architecto sit nemo odio eum fuga minima dolor iste mollitia sequi dolorem perspiciatis unde quisquam laborum soluta.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Veniam officia corporis, reiciendis laudantium, voluptate voluptates necessitatibus assumenda, delectus quisquam velit deserunt! Reprehenderit, vel quaerat accusantium nesciunt libero animi. Sequi, eveniet?</span><span>Animi natus pariatur porro, alias, veniam aut est tempora adipisci molestias harum modi cumque assumenda enim! Expedita eveniet autem illum rerum nostrum ipsum alias neque aut, dolorum impedit pariatur non?</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quis aliquid rerum, odio veniam ipsam ad officia quos repellat ex aperiam voluptatum optio est animi possimus minus. Sapiente voluptates amet dolorem.</span><span>Illo necessitatibus similique asperiores inventore ut cumque nihil assumenda debitis explicabo rerum, dolorum molestiae culpa accusantium. Nisi doloremque optio provident blanditiis, eum ipsam asperiores, consequatur aliquam vel sit mollitia sunt.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim, totam harum perferendis. Minus ea perferendis laboriosam, iste, qui corrupti, quas veritatis omnis officiis animi fuga perspiciatis impedit! Error, harum, voluptas.</span><span>Omnis laborum, cum mollitia facilis ipsa unde distinctio maxime nesciunt illum perspiciatis ut officiis, eligendi numquam dolorem quod modi ipsam est rerum perferendis repellendus totam. Maxime excepturi culpa alias labore.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Impedit deleniti, odit sit consequatur dolorum omnis repellendus, alias vel ullam numquam. Nostrum obcaecati hic, possimus delectus nam atque aliquid explicabo cum.</span><span>Explicabo tenetur minima consequatur, aliquam, laudantium non consequuntur facilis sint, suscipit debitis ex atque mollitia magni quod repellat ratione dolorum excepturi molestiae cumque iusto eos unde? Voluptatum dolores, porro provident!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. At laboriosam fuga aperiam eveniet, obcaecati esse, nulla porro iure molestiae praesentium sint fugiat ea voluptate suscipit voluptates mollitia, voluptatibus. Autem, non.</span><span>Numquam velit culpa tempora ratione ipsum minus modi in? Nisi reiciendis, voluptate voluptatem maxime repellat quae odio, repellendus aliquid laborum dolorem. Labore, fuga ea minima explicabo quae voluptatum necessitatibus, similique.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quasi, rerum dolorum nemo error fugiat ut, modi, architecto libero maxime laborum repellendus doloribus neque aperiam adipisci quaerat obcaecati deserunt consequuntur amet!</span><span>Sint, assumenda nisi obcaecati doloremque iste. Perspiciatis accusantium, distinctio impedit cum esse recusandae sunt. Officiis culpa dolore eius, doloribus natus, dolorum excepturi vitae fugiat ullam provident harum! Suscipit, assumenda, harum.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odit, nihil tenetur tempore eligendi qui nesciunt consequatur delectus accusantium consectetur ipsa, nulla doloribus dolores rerum corporis, laborum, laboriosam hic mollitia repellat.</span><span>Ab deleniti vitae blanditiis quod tenetur! Voluptatem temporibus ab eaque quis? Quis odio aliquid harum temporibus totam, ipsa eius iusto fugiat enim in, quibusdam molestiae aliquam consequatur nulla, consequuntur sint.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illum odit praesentium quos, earum nesciunt laudantium illo tempora eligendi, porro doloremque mollitia neque aperiam inventore nam maxime dolor labore aspernatur molestias.</span><span>Voluptatibus provident hic cupiditate placeat, ut reprehenderit nisi eum, dolores ad sed quis. Doloribus molestiae, quae rem odit expedita soluta, facilis animi corporis velit ut in, recusandae harum laboriosam veritatis.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Incidunt repudiandae molestias magnam delectus veritatis labore, corporis dicta officia quos, ad corrupti odit! Ad hic officia maxime eveniet consectetur similique adipisci!</span><span>Quia at, nesciunt aliquid delectus ex alias voluptas maxime hic esse. Incidunt, laborum quos mollitia dolores et! Voluptas commodi asperiores, fugit quidem quis corporis, a eaque, animi, autem deserunt repellendus.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sequi quas, voluptas hic minima inventore optio, id quidem placeat necessitatibus omnis voluptatibus vitae mollitia tempora consequuntur consequatur, illo facilis accusamus illum.</span><span>Voluptates consequuntur ipsam odit. Eius quis ipsam vitae, nihil molestias perferendis corporis recusandae consequatur vero iure blanditiis quas adipisci quos voluptatem rem illo voluptate. Eveniet officiis iure sit laborum veniam.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Suscipit a quis cumque nostrum quisquam molestiae pariatur, asperiores natus necessitatibus adipisci illum cupiditate nam vero, tempora excepturi laborum, earum. Voluptates, nobis.</span><span>Pariatur suscipit, hic blanditiis libero, iusto, quam cupiditate nam error id asperiores repellat ab consequatur vitae ipsa voluptatem totam magni reiciendis expedita maxime dolor! Minus explicabo quas, laborum ab omnis!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore qui ad assumenda placeat optio illo molestias corporis dolorum cum. Doloribus eius autem obcaecati minima, asperiores iure dignissimos ducimus suscipit dolorem.</span><span>Blanditiis earum accusamus eaque temporibus necessitatibus voluptatum dolorem enim debitis inventore assumenda quae error perspiciatis aut, nulla delectus quam ipsa sapiente ea aliquam laboriosam repudiandae. Nesciunt praesentium, beatae eos quasi!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cupiditate dicta voluptate impedit? Ad voluptatum dicta earum perferendis asperiores. Dolore distinctio modi expedita consequatur provident perspiciatis neque totam rerum placeat quas.</span><span>Eveniet optio est possimus iste accusantium ipsum illum. Maiores saepe repudiandae facere, delectus iure dolorem vitae nihil pariatur minima, reprehenderit eligendi dolore impedit, nisi doloribus quidem similique. Optio, delectus, minus.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iste ex molestiae architecto enim nihil tempore, atque consequuntur doloribus recusandae sed consequatur veniam quos, in consectetur perspiciatis magni nostrum ab voluptates.</span><span>Nisi quos mollitia quis in maiores asperiores labore deserunt! Voluptate voluptas adipisci qui hic officia molestias, laborum necessitatibus sint nam vel minus incidunt perspiciatis recusandae sunt, rerum suscipit doloremque possimus!</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. At nihil perferendis quae quidem facilis aliquid pariatur possimus hic asperiores, recusandae exercitationem adipisci atque laborum, delectus, odit ab reprehenderit distinctio dolor.</span><span>Non excepturi quos aspernatur repudiandae laboriosam, unde molestias, totam, sapiente harum accusamus delectus laborum ipsam velit amet nisi! Consectetur aliquam provident voluptatibus saepe repudiandae eveniet laborum beatae, animi, voluptate dolores.</span></p>
<p><span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque magni, eum ipsa, veritatis facere voluptatem dolorum nobis neque minus debitis asperiores iste. Pariatur sequi quam, tempora. Dignissimos, esse similique tempora.</span><span>Ex delectus excepturi autem sunt, nemo repudiandae, recusandae nostrum accusantium nobis temporibus magnam eligendi similique veritatis deleniti, eaque blanditiis possimus at! Repellat alias laboriosam ipsum commodi dolorem, corporis dolore suscipit!</span></p>만만하다.
var scrollIt = function(time) {
// time = scroll time in ms
var start = new Date().getTime(),
scroll = document.documentElement.scrollTop + document.body.scrollTop,
timer = setInterval(function() {
var now = Math.min(time,(new Date().getTime())-start)/time;
document.documentElement.scrollTop
= document.body.scrollTop = (1-time)/start*scroll;
if( now == 1) clearTimeout(timer);
},25);
}
아래 javascript만의 솔루션을 만들었습니다.
간단한 사용법:
EPPZScrollTo.scrollVerticalToElementById('wrapper', 0);
엔진 객체(필터, fps 값을 조작할 수 있음):
/**
*
* Created by Borbás Geri on 12/17/13
* Copyright (c) 2013 eppz! development, LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
var EPPZScrollTo =
{
/**
* Helpers.
*/
documentVerticalScrollPosition: function()
{
if (self.pageYOffset) return self.pageYOffset; // Firefox, Chrome, Opera, Safari.
if (document.documentElement && document.documentElement.scrollTop) return document.documentElement.scrollTop; // Internet Explorer 6 (standards mode).
if (document.body.scrollTop) return document.body.scrollTop; // Internet Explorer 6, 7 and 8.
return 0; // None of the above.
},
viewportHeight: function()
{ return (document.compatMode === "CSS1Compat") ? document.documentElement.clientHeight : document.body.clientHeight; },
documentHeight: function()
{ return (document.height !== undefined) ? document.height : document.body.offsetHeight; },
documentMaximumScrollPosition: function()
{ return this.documentHeight() - this.viewportHeight(); },
elementVerticalClientPositionById: function(id)
{
var element = document.getElementById(id);
var rectangle = element.getBoundingClientRect();
return rectangle.top;
},
/**
* Animation tick.
*/
scrollVerticalTickToPosition: function(currentPosition, targetPosition)
{
var filter = 0.2;
var fps = 60;
var difference = parseFloat(targetPosition) - parseFloat(currentPosition);
// Snap, then stop if arrived.
var arrived = (Math.abs(difference) <= 0.5);
if (arrived)
{
// Apply target.
scrollTo(0.0, targetPosition);
return;
}
// Filtered position.
currentPosition = (parseFloat(currentPosition) * (1.0 - filter)) + (parseFloat(targetPosition) * filter);
// Apply target.
scrollTo(0.0, Math.round(currentPosition));
// Schedule next tick.
setTimeout("EPPZScrollTo.scrollVerticalTickToPosition("+currentPosition+", "+targetPosition+")", (1000 / fps));
},
/**
* For public use.
*
* @param id The id of the element to scroll to.
* @param padding Top padding to apply above element.
*/
scrollVerticalToElementById: function(id, padding)
{
var element = document.getElementById(id);
if (element == null)
{
console.warn('Cannot find element with id \''+id+'\'.');
return;
}
var targetPosition = this.documentVerticalScrollPosition() + this.elementVerticalClientPositionById(id) - padding;
var currentPosition = this.documentVerticalScrollPosition();
// Clamp.
var maximumScrollPosition = this.documentMaximumScrollPosition();
if (targetPosition > maximumScrollPosition) targetPosition = maximumScrollPosition;
// Start animation.
this.scrollVerticalTickToPosition(currentPosition, targetPosition);
}
};
여기에 있는 몇 가지 답을 바탕으로 하지만 사인 곡선을 사용하여 원활한 전환을 위한 간단한 산술 사용:
scrollTo(element, from, to, duration, currentTime) {
if (from <= 0) { from = 0;}
if (to <= 0) { to = 0;}
if (currentTime>=duration) return;
let delta = to-from;
let progress = currentTime / duration * Math.PI / 2;
let position = delta * (Math.sin(progress));
setTimeout(() => {
element.scrollTop = from + position;
this.scrollTo(element, from, to, duration, currentTime + 10);
}, 10);
}
사용방법:
// Smoothly scroll from current position to new position in 1/2 second.
scrollTo(element, element.scrollTop, element.scrollTop + 400, 500, 0);
PS. ES6 스타일에 유의하십시오.
이는 위의 답변에 기초한 크로스 브라우저 접근법입니다.
function scrollTo(to, duration) {
if (duration < 0) return;
var scrollTop = document.body.scrollTop + document.documentElement.scrollTop;
var difference = to - scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
scrollTop = scrollTop + perTick;
document.body.scrollTop = scrollTop;
document.documentElement.scrollTop = scrollTop;
if (scrollTop === to) return;
scrollTo(to, duration - 10);
}, 10);
}
또 다른 접근법은 window.scrollBy를 사용하고 있습니다.
function scroll(pxPerFrame, duration) {
if (!pxPerFrame || !duration) return;
const end = new Date().getTime() + duration;
step();
function step() {
window.scrollBy(0, pxPerFrame);
if (new Date().getTime() < end) {
window.setTimeout(step, 1000 / 60);
} else {
console.log('done scrolling');
}
}
}body {
width: 200px;
}<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
<p>
<button onclick="scroll(-5, 3000)">
scroll(-5, 3000)
</button>
</p>@timwolla answer의 @akai 버전을 선택하고 그 대신 stop Animation 기능을 추가했기 때문에 새로운 애니메이션을 시작하기 전에 이전 애니메이션을 중지할 수 있습니다.
if ( this.stopAnimation )
this.stopAnimation()
this.stopAnimation = scrollTo( el, scrollDestination, 300 )
// definitions
function scrollTo(element, to, duration) {
var start = element.scrollTop,
change = to - start,
increment = 20,
timeOut;
var animateScroll = function(elapsedTime) {
elapsedTime += increment;
var position = easeInOut(elapsedTime, start, change, duration);
element.scrollTop = position;
if (elapsedTime < duration) {
timeOut = setTimeout(function() {
animateScroll(elapsedTime);
}, increment);
}
};
animateScroll(0);
return stopAnimation
function stopAnimation() {
clearTimeout( timeOut )
}
}
function easeInOut(currentTime, start, change, duration) {
currentTime /= duration / 2;
if (currentTime < 1) {
return change / 2 * currentTime * currentTime + start;
}
currentTime -= 1;
return -change / 2 * (currentTime * (currentTime - 2) - 1) + start;
}
상기 솔루션을 기반으로 한 또 다른 크로스 브라우저 접근법
function doScrollTo(to, duration) {
var element = document.documentElement;
var start = element.scrollTop,
change = to - start,
increment = 20,
i = 0;
var animateScroll = function(elapsedTime) {
elapsedTime += increment;
var position = easeInOut(elapsedTime, start, change, duration);
if (i === 1 && window.scrollY === start) {
element = document.body;
start = element.scrollTop;
}
element.scrollTop = position;
if (!i) i++;
if (elapsedTime < duration) {
setTimeout(function() {
animateScroll(elapsedTime);
}, increment);
}
};
animateScroll(0);
}
실제 스크롤 변경을 제어하고 0인 경우 스크롤 요소를 변경하는 것이 중요합니다.
JS 솔루션(o jQuery 포함).
element.onclick = () => window.scrollTo({ top: 0, behavior: 'smooth' })
아래로 선형 스크롤 애니메이션.순수 JS, JQuery 없음아마 내 해결책이 누군가에게 도움이 될 거야.
let action_count = 8;
let speed_ms = 15;
let objDiv = document.getElementsByClassName('js_y5_area3').item(0);
let scroll_height = objDiv.scrollHeight;
let window_height = objDiv.offsetHeight;
let scroll_top = objDiv.scrollTop;
let need_scroll_top = scroll_height - window_height;
if (scroll_top < need_scroll_top)
{
let step = Math.ceil((need_scroll_top - scroll_top) / action_count);
let scrollInterval = setInterval(function()
{
scroll_top += step;
objDiv.scrollTop = scroll_top;
if (scroll_top >= need_scroll_top)
{
clearInterval(scrollInterval);
}
}, speed_ms);
}
변수를 변경할 수 있습니다.action_count,speed_ms스크롤 애니메이션을 취향에 맞게 구성할 수 있습니다.
이 솔루션 사용
animate(document.documentElement, 'scrollTop', 0, 200);
감사해요.
위의 게시물들은 대부분 javascript로 버튼을 검색한다는 것을 알았습니다.버튼 하나만 있으면 됩니다.버튼 내부에 "클릭" 요소를 정의할 것을 권장합니다.그런 다음 "클릭"이 기능을 호출하여 스크롤합니다.
이렇게 하면 여러 개의 버튼을 사용할 수 있습니다.단, 버튼의 모양은 다음과 같습니다.
<button onclick="scrollTo(document.body, 0, 1250)">To the top</button>
언급URL : https://stackoverflow.com/questions/8917921/cross-browser-javascript-not-jquery-scroll-to-top-animation
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