misskey/packages/frontend/src/directives/click-anime.ts

import { Directive } from 'vue';
import { defaultStore } from '@/store';

export default {
	mounted(el: HTMLElement, binding, vn) {
		if (!defaultStore.state.animation) return;

		const target = el.children[0];

		if (target == null) return;

		target.classList.add('_anime_bounce_standBy');

		el.addEventListener('mousedown', () => {
			target.classList.remove('_anime_bounce');

			target.classList.add('_anime_bounce_standBy');
			target.classList.add('_anime_bounce_ready');

			target.addEventListener('mouseleave', () => {
				target.classList.remove('_anime_bounce_ready');
			});
		});

		el.addEventListener('click', () => {
			target.classList.add('_anime_bounce');
			target.classList.remove('_anime_bounce_ready');
		});

		el.addEventListener('animationend', () => {
			target.classList.remove('_anime_bounce');
			target.classList.add('_anime_bounce_standBy');
		});
	},
} as Directive;