76 lines
1.6 KiB
Vue
76 lines
1.6 KiB
Vue
<template>
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<transition-group v-if="$store.state.device.animation"
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name="staggered-fade"
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tag="div"
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:css="false"
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@before-enter="beforeEnter"
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@enter="enter"
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@leave="leave"
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mode="out-in"
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appear
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>
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<slot></slot>
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</transition-group>
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<div v-else>
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<slot></slot>
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</div>
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</template>
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<script lang="ts">
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import Vue from 'vue';
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export default Vue.extend({
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props: {
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delay: {
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type: Number,
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required: false,
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default: 40
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},
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direction: {
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type: String,
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required: false,
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default: 'down'
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},
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reversed: {
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type: Boolean,
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required: false,
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default: false
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}
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},
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i: 0,
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methods: {
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beforeEnter(el) {
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el.style.opacity = 0;
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el.style.transform = this.direction === 'down' ? 'translateY(-64px)' : 'translateY(64px)';
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let index = this.$options.i;
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const delay = this.delay * index;
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el.style.transition = [getComputedStyle(el).transition, `transform 0.7s cubic-bezier(0.23, 1, 0.32, 1) ${delay}ms`, `opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1) ${delay}ms`].filter(x => x != '').join(',');
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this.$options.i++;
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},
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enter(el, done) {
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setTimeout(() => {
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el.style.opacity = 1;
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el.style.transform = 'translateY(0px)';
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el.addEventListener('transitionend', () => {
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el.style.transition = '';
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this.$options.i--;
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done();
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}, { once: true });
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});
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},
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leave(el) {
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el.style.opacity = 0;
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el.style.transform = this.direction === 'down' ? 'translateY(64px)' : 'translateY(-64px)';
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},
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focus() {
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this.$slots.default[0].elm.focus();
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}
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}
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});
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</script>
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<style lang="scss">
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.staggered-fade-move {
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transition: transform 0.7s !important;
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}
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</style>
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