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cherrypick/packages/client/src/components/global/spacer.vue

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<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">
import { defineComponent, onMounted, onUnmounted, ref } from 'vue';
export default defineComponent({
props: {
contentMax: {
type: Number,
required: false,
default: null,
}
},
setup(props, context) {
let ro: ResizeObserver;
const root = ref<HTMLElement>(null);
const content = ref<HTMLElement>(null);
const margin = ref(0);
const adjust = (rect: { width: number; height: number; }) => {
if (rect.width > (props.contentMax || 500)) {
margin.value = 32;
} else {
margin.value = 12;
}
};
onMounted(() => {
ro = new ResizeObserver((entries) => {
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/* iOS
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adjust({
width: entries[0].borderBoxSize[0].inlineSize,
height: entries[0].borderBoxSize[0].blockSize,
});
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*/
adjust({
width: root.value.offsetWidth,
height: root.value.offsetHeight,
});
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});
ro.observe(root.value);
if (props.contentMax) {
content.value.style.maxWidth = `${props.contentMax}px`;
}
});
onUnmounted(() => {
ro.disconnect();
});
return {
root,
content,
margin,
};
},
});
</script>
<style lang="scss" module>
.root {
box-sizing: border-box;
width: 100%;
}
.content {
margin: 0 auto;
}
</style>