vue.js는 뷰포트에 들어가는 요소에 표시/발생합니다.
일단 jQuery는 하지 말아주세요.이것을 jQuery 등에서 할 수 있습니다.요점은 불필요한 의존관계 없이 할 수 있다는 것입니다.
이 시나리오에서는 스크롤할 수 있는 여러 섹션으로 구성된 단일 페이지 웹 사이트를 만듭니다.브라우저가 해당 섹션으로 스크롤되면 Vue.js의 트랜지션을 사용하여 페이드인 할 수 있습니다.이 전환은 aptribute를 사용하여 작동시킬 수 있지만 문제는 초기 렌더 트리거가 화면 밖에 있는 요소에서 작동한다는 것입니다.또한 브라우저가 요소를 스크롤할 때까지 트리거를 미루고 싶습니다.
vue-observe-visibility와 같은 라이브러리를 찾았지만 솔직히 데이터 속성 로드를 생성하여 트리거를 true로 변경하고 v-if 문을 통해 페이드 효과를 트리거하고 싶지는 않습니다.그게 말이 됐으면 좋겠어요.
지시문을 사용하는 한 가지 방법은 청취자가 있는 것입니다.요소가 뷰에 있으면 불투명도를 1(또는 x-점수)로 전환하는 클래스를 추가합니다.그러면 일단 보이는 대로 듣는 사람을 파괴해버려.
따라서 각 항목의 상태를 관리할 필요가 없으므로 요소에 쉽게 추가할 수 있으며 변경만 쉽게 추가할 수 있습니다.<div>
로.<div class="hidden hidden-left" v-infocus="'showElement'">
이 작업을 수행하는 모든 개체에 대해 지정합니다.
new Vue ({
el: '#app',
data() {},
methods: {},
directives: {
infocus: {
isLiteral: true,
inserted: (el, binding, vnode) => {
let f = () => {
let rect = el.getBoundingClientRect()
let inView = (
rect.width > 0 &&
rect.height > 0 &&
rect.top >= 0 &&
rect.bottom <= (window.innerHeight || document.documentElement.clientHeight)
)
if (inView) {
el.classList.add(binding.value)
window.removeEventListener('scroll', f)
}
}
window.addEventListener('scroll', f)
f()
}
}
}
})
#app {
font-family: 'Avenir', Helvetica, Arial, sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-align: center;
color: #2c3e50;
margin-top: 60px;
}
div {
min-height: 120px;
}
h1,
h2 {
font-weight: normal;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
/* the classes */
.hidden {
opacity: 0;
}
.hidden-right {
transform: translate(50px, 0);
}
.hidden-left {
transform: translate(-50px, 0);
}
.showElement {
opacity: 1;
transform: translate(0, 0);
-webkit-transition: all 0.5s ease-out;
-moz-transition: all 0.5s ease-out;
transition: all 0.5s ease-out;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.8/vue.min.js"></script>
<div id="app">
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-left" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
<div class="hidden hidden-right" v-infocus="'showElement'">
<h2>Ecosystem</h2>
<ul>
<li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
<li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
<li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
<li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
</ul>
</div>
</div>
...단, 컴포넌트가 마운트 해제되었을 때 리스너를 제거할 수 있으면 좋겠습니다.SPA에서는 이로 인해 청취자가 남아있을 수 있습니다.
언급URL : https://stackoverflow.com/questions/47491109/vue-js-transition-to-appear-occur-on-element-entering-viewport
'programing' 카테고리의 다른 글
Java 추상 클래스 (0) | 2022.08.13 |
---|---|
동적 구성 요소가 완전히 로드된 경우 확인하는 방법 (0) | 2022.08.13 |
하위 구성 요소와 함께 Vuex를 사용하는 올바른 방법 (0) | 2022.08.13 |
UNIX의 pthread.h를 Windows에서 컴파일할 수 있습니까? (0) | 2022.08.13 |
모든 데이터를 모든 슬롯에 할당 (0) | 2022.08.12 |