misskey/packages/frontend/src/components/global/MkSpacer.vue
2022-12-27 14:36:33 +09:00

97 lines
2.0 KiB
Vue

<template>
<div ref="root" :class="$style.root" :style="{ padding: margin + 'px' }">
<div ref="content" :class="$style.content">
<slot></slot>
</div>
</div>
</template>
<script lang="ts" setup>
import { inject, onMounted, onUnmounted, ref } from 'vue';
import { deviceKind } from '@/scripts/device-kind';
const props = withDefaults(defineProps<{
contentMax?: number | null;
marginMin?: number;
marginMax?: number;
}>(), {
contentMax: null,
marginMin: 12,
marginMax: 24,
});
let ro: ResizeObserver;
let root = $ref<HTMLElement>();
let content = $ref<HTMLElement>();
let margin = $ref(0);
const widthHistory = [null, null] as [number | null, number | null];
const heightHistory = [null, null] as [number | null, number | null];
const shouldSpacerMin = inject('shouldSpacerMin', false);
const adjust = (rect: { width: number; height: number; }) => {
if (shouldSpacerMin || deviceKind === 'smartphone') {
margin = props.marginMin;
return;
}
if (rect.width > (props.contentMax ?? 0) || (rect.width > 360 && window.innerWidth > 400)) {
margin = props.marginMax;
} else {
margin = props.marginMin;
}
};
onMounted(() => {
ro = new ResizeObserver((entries) => {
/* iOSが対応していない
adjust({
width: entries[0].borderBoxSize[0].inlineSize,
height: entries[0].borderBoxSize[0].blockSize,
});
*/
const width = root!.offsetWidth;
const height = root!.offsetHeight;
//#region Prevent infinite resizing
// https://github.com/misskey-dev/misskey/issues/9076
const pastWidth = widthHistory.pop();
widthHistory.unshift(width);
const pastHeight = heightHistory.pop();
heightHistory.unshift(height);
if (pastWidth === width && pastHeight === height) {
return;
}
//#endregion
adjust({
width,
height,
});
});
ro.observe(root!);
if (props.contentMax) {
content!.style.maxWidth = `${props.contentMax}px`;
}
});
onUnmounted(() => {
ro.disconnect();
});
</script>
<style lang="scss" module>
.root {
box-sizing: border-box;
width: 100%;
}
.content {
margin: 0 auto;
container-type: inline-size;
}
</style>