4dkankan-components/docs/.vitepress/vitepress/components/globals/parallax-home.vue

<script setup lang="ts">
import { computed, reactive, ref } from 'vue'
import { useEventListener, useParallax, useThrottleFn } from '@vueuse/core'
import { useLang } from '../../composables/lang'
import homeLocale from '../../../i18n/pages/home.json'
import HomeSponsors from '../home/home-sponsors.vue'
import HomeCards from '../home/home-cards.vue'
import HomeFooter from './vp-footer.vue'
import type { CSSProperties } from 'vue'
const target = ref<HTMLElement | null>(null)
const parallax = reactive(useParallax(target))
const jumbotronRedOffset = ref(0)
const jumbotronRef = ref<HTMLElement | null>(null)
const lang = useLang()
const homeLang = computed(() => homeLocale[lang.value])

function jumpTo(path: string) {
    // vitepress has not router
    location.href = `/${lang.value}/${path}`
}

const containerStyle: CSSProperties = {
    display: 'flex',
    flexDirection: 'column',
    justifyContent: 'center',
    alignItems: 'center',
    transition: '.3s ease-out all',

    position: 'relative',

    perspective: '300px',
}

const cardStyle = computed(() => ({
    height: '30rem',
    width: '100%',
    transition: '.3s ease-out all',
    transform: `rotateX(${parallax.roll}deg) rotateY(${parallax.tilt}deg)`,
}))

const layerBase: CSSProperties = {
    position: 'absolute',
    width: '100%',
    height: '100%',
    transition: '.3s ease-out all',
}

const screenLayer = computed(() => ({
    ...layerBase,
    width: '80%',
    height: '80%',
    transform: `translateX(${parallax.tilt * 10 + 80}px) translateY(${parallax.roll * 10 + 50}px)`,
}))

const peopleLayer = computed(() => ({
    ...layerBase,
    width: '30%',
    height: '30%',
    right: 0,
    bottom: 0,
    transform: `translateX(${parallax.tilt * 25 + 25}px) translateY(${parallax.roll * 25}px) scale(1)`,
}))

// center layer
const leftLayer = computed(() => ({
    ...layerBase,
    width: '20%',
    height: '20%',
    transform: `translateX(${parallax.tilt * 12 + 205}px) translateY(${parallax.roll * 12 + 210}px)`,
}))

const leftBottomLayer = computed(() => ({
    ...layerBase,
    width: '30%',
    height: '30%',
    left: 0,
    bottom: 0,
    transform: `translateX(${parallax.tilt * 30 - 10}px) translateY(${parallax.roll * 30}px)`,
}))

const rightLayer = computed(() => ({
    ...layerBase,
    width: '33%',
    height: '33%',
    top: 0,
    right: 0,
    transform: `translateX(${parallax.tilt * 25 + 5}px) translateY(${parallax.roll * 25}px)`,
}))

const handleScroll = useThrottleFn(() => {
    const ele = jumbotronRef.value
    if (ele) {
        const rect = ele.getBoundingClientRect()
        const eleHeight = ele.clientHeight
        let calHeight = (180 - rect.top) * 2
        if (calHeight < 0) calHeight = 0
        if (calHeight > eleHeight) calHeight = eleHeight
        jumbotronRedOffset.value = calHeight
    }
}, 10)

useEventListener(window, 'scroll', handleScroll)
</script>

<template>
    <div ref="target" class="home-page">
        <div class="banner" text="center">
            <div class="banner-desc" m="t-4">
                <h1>{{ homeLang['title'] }}</h1>
                <p m="t-2">{{ homeLang['title_sub'] }}</p>
            </div>
        </div>
        <!-- <div ref="jumbotronRef" class="jumbotron">
            <div class="parallax-container" :style="containerStyle">
                <div :style="cardStyle">
                    <screen-svg :style="screenLayer" alt="banner" />
                    <people-svg :style="peopleLayer" alt="banner" class="cursor-pointer" @click="jumpTo('guide/quickstart.html')" />
                    <left-layer-svg :style="leftLayer" alt="banner" />
                    <left-bottom-layer-svg :style="leftBottomLayer" alt="banner" />
                    <right-layer-svg :style="rightLayer" alt="banner" />
                </div>
            </div>
        </div> -->
        <!-- <img src="/images/theme-index-blue.png" alt="banner" class="mobile-banner" /> -->
        <!-- <HomeSponsors /> -->
        <!-- <HomeCards /> -->
    </div>
    <HomeFooter :is-home="true" />
</template>

<style lang="scss">
@use '../../styles/mixins' as *;

.home-page {
    .mobile-banner {
        display: none;
    }

    .banner-dot h1 span {
        position: relative;
        &::after {
            content: '';
            position: absolute;
            right: -12px;
            bottom: 8px;
            background: var(--el-color-primary);
            height: 8px;
            width: 8px;
            border-radius: 100%;
        }
    }
    .banner-desc {
        h1 {
            font-size: 34px;
            margin: 0;
            line-height: 48px;
            color: var(--text-color);
        }

        p {
            font-size: 18px;
            color: var(--text-color-light);
        }
    }

    .count-down {
        .cd-main {
            background: #f1f6fe;
            border-radius: 10px;
            width: 50%;
            margin: 60px auto 120px;
            padding: 30px 0;
            font-size: 24px;
            color: #666;
            text-align: center;
            font-weight: 600;
        }
        .cd-date {
            font-size: 28px;
        }
        .cd-time {
            display: flex;
            justify-content: space-between;
            width: 80%;
            margin: 10px auto 0;
        }
        .cd-num {
            color: var(--el-color-primary);
            font-size: 78px;
            font-weight: bold;
        }
        .cd-num span {
            width: 50%;
            display: inline-block;
        }
        .cd-str {
            font-size: 22px;
            margin-top: -5px;
        }
    }

    .jumbotron {
        width: 800px;
        margin: 20px auto;
        position: relative;

        img {
            width: 100%;
        }

        .parallax-container {
            width: 800px;
        }
    }

    @media screen and (max-width: 959px) {
        .jumbotron {
            display: none !important;
        }

        .mobile-banner {
            display: inline-block;
        }
    }

    @media (max-width: 768px) {
        .jumbotron {
            width: 50%;
            display: flex;
            margin: auto;
            justify-content: center;
            align-items: center;

            .parallax-container {
                width: 100%;
            }
        }
    }

    @media (max-width: 768px) {
        .banner-desc {
            padding-top: 0px;
        }
        .cards {
            li {
                width: 80%;
                margin: 0 auto 20px;
                float: none;
            }
            .card {
                height: auto;
                padding-bottom: 54px;
            }
        }
        .banner-stars {
            display: none;
        }
        .banner-desc {
            h1 {
                font-size: 22px;
            }
            #line2 {
                display: none;
            }
            h2 {
                font-size: 32px;
            }
            p {
                width: auto;
            }
        }
        .banner-dot h1 span {
            &::after {
                right: -8px;
                bottom: 2px;
                height: 6px;
                width: 6px;
            }
        }
        .count-down {
            .cd-main {
                width: 90%;
                margin: 40px auto 40px;
                padding: 20px 0;
            }
            .cd-date {
                font-size: 22px;
            }
            .cd-num {
                font-size: 38px;
            }
            .cd-str {
                font-size: 12px;
                margin-top: 0px;
            }
        }
        .sponsors-list {
            display: flex;
            flex-direction: column;
            align-content: center;
            .sponsor {
                justify-content: left;
            }
        }
    }
    .theme-intro-b {
        position: fixed;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 200;
        .intro-banner {
            position: absolute;
        }
        img {
            width: 300px;
        }
        .title {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            color: #fff;
            text-align: center;
            font-weight: bold;
            font-size: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            p {
                padding: 0;
                margin: 10px 0;
            }
        }
    }
    .theme-intro-a {
        position: fixed;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 200;
        .mask {
            position: fixed;
            left: 0;
            right: 0;
            top: 0;
            bottom: 0;
            background: #000;
            opacity: 0.5;
        }
        .intro-banner {
            top: 50%;
            left: 50%;
            position: fixed;
            transform: translate(-50%, -50%);
            box-sizing: border-box;
            text-align: center;
            z-index: 100;
            img {
                width: 100%;
            }
            .intro-text {
                position: absolute;
                top: 50%;
                left: 0;
                right: 0;
                p {
                    padding: 0;
                    margin: 0;
                    font-size: 48px;
                    font-weight: bold;
                    color: #fff;
                }
            }
        }
    }
}
</style>