93 lines
1.9 KiB
Vue
93 lines
1.9 KiB
Vue
<!-- CollapseTransition.vue -->
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<template>
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<view :style="wrapStyle" class="collapse-wrapper">
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<view ref="contentRef" class="content-inner">
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<slot />
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</view>
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</view>
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</template>
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<script setup>
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import { ref, watch, nextTick } from 'vue';
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const props = defineProps({
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show: Boolean,
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duration: {
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type: Number,
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default: 300,
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},
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});
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const wrapStyle = ref({
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height: '0rpx',
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opacity: 0,
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overflow: 'hidden',
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transition: `all ${props.duration}ms ease`,
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});
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const contentRef = ref(null);
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// 获取高度（兼容 H5 + 小程序）
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function getContentHeight() {
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return new Promise((resolve) => {
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const query = uni.createSelectorQuery().in(this ? this : undefined);
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query
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.select('.content-inner')
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.boundingClientRect((data) => {
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resolve(data?.height || 0);
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})
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.exec();
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});
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}
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// 动画执行
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async function expand() {
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const height = await getContentHeight();
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wrapStyle.value = {
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height: height + 'px',
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opacity: 1,
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overflow: 'hidden',
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transition: `all ${props.duration}ms ease`,
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};
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setTimeout(() => {
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wrapStyle.value.height = 'auto';
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}, props.duration);
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}
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async function collapse() {
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const height = await getContentHeight();
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wrapStyle.value = {
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height: height + 'px',
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opacity: 1,
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overflow: 'hidden',
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transition: 'none',
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};
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// 等待下一帧开始收起动画
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await nextTick();
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requestAnimationFrame(() => {
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wrapStyle.value = {
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height: '0rpx',
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opacity: 0,
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overflow: 'hidden',
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transition: `all ${props.duration}ms ease`,
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};
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});
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}
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watch(
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() => props.show,
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(val) => {
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if (val) expand();
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else collapse();
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}
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);
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</script>
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<style scoped>
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.collapse-wrapper {
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width: 100%;
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}
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</style>
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