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