vitepress/src/client/theme-default/components/VPLocalNavOutlineDropdown.vue

148 lines
3.1 KiB

<script setup lang="ts">
import { onContentUpdated } from 'vitepress'
import { nextTick, ref } from 'vue'
import { useData } from '../composables/data'
import { resolveTitle, type MenuItem } from '../composables/outline'
import VPDocOutlineItem from './VPDocOutlineItem.vue'
import VPIconChevronRight from './icons/VPIconChevronRight.vue'
defineProps<{
headers: MenuItem[]
}>()
const { theme } = useData()
const open = ref(false)
const vh = ref(0)
const items = ref<HTMLDivElement>()
onContentUpdated(() => {
open.value = false
})
function toggle() {
open.value = !open.value
vh.value = window.innerHeight + Math.min(window.scrollY - 64, 0)
}
function onItemClick(e: Event) {
if ((e.target as HTMLElement).classList.contains('outline-link')) {
// disable animation on hash navigation when page jumps
if (items.value) {
items.value.style.transition = 'none'
}
nextTick(() => {
open.value = false
})
}
}
function scrollToTop() {
open.value = false
window.scrollTo({ top: 0, left: 0, behavior: 'smooth' })
}
</script>
<template>
<div class="VPLocalNavOutlineDropdown" :style="{ '--vp-vh': vh + 'px' }">
<button @click="toggle" :class="{ open }" v-if="headers.length > 0">
{{ resolveTitle(theme) }}
<VPIconChevronRight class="icon" />
</button>
<button @click="scrollToTop" v-else>
{{ theme.returnToTopLabel || 'Return to top' }}
</button>
<Transition name="flyout">
<div v-if="open"
ref="items"
class="items"
@click="onItemClick"
>
<a class="top-link" href="#" @click="scrollToTop">
{{ theme.returnToTopLabel || 'Return to top' }}
</a>
<VPDocOutlineItem :headers="headers" />
</div>
</Transition>
</div>
</template>
<style scoped>
.VPLocalNavOutlineDropdown {
padding: 12px 20px 11px;
}
.VPLocalNavOutlineDropdown button {
display: block;
font-size: 12px;
font-weight: 500;
line-height: 24px;
color: var(--vp-c-text-2);
transition: color 0.5s;
position: relative;
}
.VPLocalNavOutlineDropdown button:hover {
color: var(--vp-c-text-1);
transition: color 0.25s;
}
.VPLocalNavOutlineDropdown button.open {
color: var(--vp-c-text-1);
}
.icon {
display: inline-block;
vertical-align: middle;
margin-left: 2px;
width: 14px;
height: 14px;
fill: currentColor;
}
:deep(.outline-link) {
font-size: 14px;
padding: 2px 0;
}
.open > .icon {
transform: rotate(90deg);
}
.items {
position: absolute;
left: 20px;
right: 20px;
top: 64px;
background-color: var(--vp-local-nav-bg-color);
padding: 4px 10px 16px;
border: 1px solid var(--vp-c-divider);
border-radius: 8px;
max-height: calc(var(--vp-vh, 100vh) - 86px);
overflow: hidden auto;
box-shadow: var(--vp-shadow-3);
}
.top-link {
display: block;
color: var(--vp-c-brand);
font-size: 13px;
font-weight: 500;
padding: 6px 0;
margin: 0 13px 10px;
border-bottom: 1px solid var(--vp-c-divider);
}
.flyout-enter-active {
transition: all .2s ease-out;
}
.flyout-leave-active {
transition: all .15s ease-in;
}
.flyout-enter-from,
.flyout-leave-to {
opacity: 0;
transform: translateY(-16px);
}
</style>