79 lines
1.7 KiB
Vue
79 lines
1.7 KiB
Vue
<script setup lang="ts">
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import type { ScrollViewOnScrollEvent } from '@uni-helper/uni-app-types'
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import { computed, defineComponent, ref } from 'vue'
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import { CLICK_EVENT, PREFIX } from '../_constants'
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import { getMainClass, getMainStyle } from '../_utils'
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import NutIcon from '../icon/icon.vue'
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import { backtopEmits, backtopProps } from './backtop'
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const props = defineProps(backtopProps)
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const emit = defineEmits(backtopEmits)
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const backTop = ref(false)
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const scrollTop = ref(1)
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const classes = computed(() => {
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return getMainClass(props, componentName, {
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show: backTop.value,
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})
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})
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const style = computed(() => {
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return getMainStyle(props, {
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right: `${props.right}px`,
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bottom: `${props.bottom}px`,
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zIndex: props.zIndex,
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})
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})
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function scroll(e: ScrollViewOnScrollEvent) {
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scrollTop.value = 2
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backTop.value = e.detail.scrollTop >= props.distance
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}
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function click(e: unknown) {
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scrollTop.value = 1
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emit(CLICK_EVENT, e as MouseEvent)
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}
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</script>
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<script lang="ts">
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const componentName = `${PREFIX}-backtop`
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export default defineComponent({
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name: componentName,
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options: {
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virtualHost: true,
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addGlobalClass: true,
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styleIsolation: 'shared',
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},
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})
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</script>
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<template>
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<view>
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<scroll-view
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:scroll-y="true"
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:style="{ height }"
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:scroll-top="scrollTop"
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:scroll-with-animation="true"
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@scroll="scroll"
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>
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<slot name="content" />
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</scroll-view>
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<view :class="classes" :style="style" @click.stop="click">
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<slot name="icon">
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<NutIcon
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:custom-color="customColor"
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name="top"
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:size="19"
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custom-class="nut-backtop-main"
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/>
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</slot>
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</view>
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</view>
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</template>
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<style lang="scss">
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@import './index';
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</style>
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