forked from mirror/misskey
35 lines
750 B
TypeScript
35 lines
750 B
TypeScript
import { Directive } from 'vue';
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export default {
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mounted(src, binding, vn) {
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const calc = () => {
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const height = src.clientHeight;
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const width = src.clientWidth;
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// 要素が(一時的に)DOMに存在しないときは計算スキップ
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if (height === 0) return;
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binding.value(width, height);
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};
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calc();
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// Vue3では使えなくなった
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// 無くても大丈夫か...？
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// TODO: ↑大丈夫じゃなかったので解決策を探す
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//vn.context.$on('hook:activated', calc);
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const ro = new ResizeObserver((entries, observer) => {
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calc();
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});
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ro.observe(src);
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src._get_size_ro_ = ro;
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},
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unmounted(src, binding, vn) {
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binding.value(0, 0);
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src._get_size_ro_.unobserve(src);
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}
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} as Directive;
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