84 lines
2.1 KiB
Vue
84 lines
2.1 KiB
Vue
<template>
|
|
<div ref="rootEl">
|
|
<div ref="headerEl">
|
|
<slot name="header"></slot>
|
|
</div>
|
|
<div ref="bodyEl" :data-sticky-container-header-height="headerHeight">
|
|
<slot></slot>
|
|
</div>
|
|
<div ref="footerEl">
|
|
<slot name="footer"></slot>
|
|
</div>
|
|
</div>
|
|
</template>
|
|
|
|
<script lang="ts" setup>
|
|
import { onMounted, onUnmounted, provide, inject, Ref, ref, watch } from 'vue';
|
|
import { CURRENT_STICKY_BOTTOM, CURRENT_STICKY_TOP } from '@/const';
|
|
|
|
const rootEl = $shallowRef<HTMLElement>();
|
|
const headerEl = $shallowRef<HTMLElement>();
|
|
const footerEl = $shallowRef<HTMLElement>();
|
|
const bodyEl = $shallowRef<HTMLElement>();
|
|
|
|
let headerHeight = $ref<string | undefined>();
|
|
let childStickyTop = $ref(0);
|
|
const parentStickyTop = inject<Ref<number>>(CURRENT_STICKY_TOP, ref(0));
|
|
provide(CURRENT_STICKY_TOP, $$(childStickyTop));
|
|
|
|
let footerHeight = $ref<string | undefined>();
|
|
let childStickyBottom = $ref(0);
|
|
const parentStickyBottom = inject<Ref<number>>(CURRENT_STICKY_BOTTOM, ref(0));
|
|
provide(CURRENT_STICKY_BOTTOM, $$(childStickyBottom));
|
|
|
|
const calc = () => {
|
|
childStickyTop = parentStickyTop.value + headerEl.offsetHeight;
|
|
headerHeight = headerEl.offsetHeight.toString();
|
|
|
|
childStickyBottom = parentStickyBottom.value + footerEl.offsetHeight;
|
|
footerHeight = footerEl.offsetHeight.toString();
|
|
};
|
|
|
|
const observer = new ResizeObserver(() => {
|
|
window.setTimeout(() => {
|
|
calc();
|
|
}, 100);
|
|
});
|
|
|
|
onMounted(() => {
|
|
calc();
|
|
|
|
watch([parentStickyTop, parentStickyBottom], calc);
|
|
|
|
watch($$(childStickyTop), () => {
|
|
bodyEl.style.setProperty('--stickyTop', `${childStickyTop}px`);
|
|
}, {
|
|
immediate: true,
|
|
});
|
|
|
|
watch($$(childStickyBottom), () => {
|
|
bodyEl.style.setProperty('--stickyBottom', `${childStickyBottom}px`);
|
|
}, {
|
|
immediate: true,
|
|
});
|
|
|
|
headerEl.style.position = 'sticky';
|
|
headerEl.style.top = 'var(--stickyTop, 0)';
|
|
headerEl.style.zIndex = '1000';
|
|
|
|
footerEl.style.position = 'sticky';
|
|
footerEl.style.bottom = 'var(--stickyBottom, 0)';
|
|
footerEl.style.zIndex = '1000';
|
|
|
|
observer.observe(headerEl);
|
|
observer.observe(footerEl);
|
|
});
|
|
|
|
onUnmounted(() => {
|
|
observer.disconnect();
|
|
});
|
|
</script>
|
|
|
|
<style lang="scss" module>
|
|
|
|
</style>
|