misskey/packages/frontend/src/directives/adaptive-bg.ts
2024-02-13 15:59:27 +00:00

30 lines
784 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Directive } from 'vue';
export default {
mounted(src, binding, vn) {
const getBgColor = (el: HTMLElement) => {
const style = window.getComputedStyle(el);
if (style.backgroundColor && !['rgba(0, 0, 0, 0)', 'rgba(0,0,0,0)', 'transparent'].includes(style.backgroundColor)) {
return style.backgroundColor;
} else {
return el.parentElement ? getBgColor(el.parentElement) : 'transparent';
}
};
const parentBg = getBgColor(src.parentElement);
const myBg = window.getComputedStyle(src).backgroundColor;
if (parentBg === myBg) {
src.style.backgroundColor = 'var(--bg)';
} else {
src.style.backgroundColor = myBg;
}
},
} as Directive;