80 lines
2.1 KiB
TypeScript
80 lines
2.1 KiB
TypeScript
// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { v4 as uuid } from 'uuid';
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import React, { useMemo, useCallback } from 'react';
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import type { LocalizerType } from '../types/Util';
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import type { ConversationType } from '../state/ducks/conversations';
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import { Avatar, AvatarSize } from './Avatar';
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export type PropsType = Readonly<{
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i18n: LocalizerType;
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conversations: ReadonlyArray<ConversationType>;
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}>;
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const MAX_AVATARS = 2;
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export function CollidingAvatars({
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i18n,
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conversations,
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}: PropsType): JSX.Element {
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const clipId = useMemo(() => uuid(), []);
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const onRef = useCallback(
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(elem: HTMLDivElement | null): void => {
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if (elem) {
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// Note that these cannot be set through html attributes
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elem.style.setProperty('--clip-path', `url(#${clipId})`);
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}
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},
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[clipId]
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);
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return (
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<div className="CollidingAvatars" ref={onRef}>
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{conversations.slice(0, MAX_AVATARS).map(({ id, type, ...convo }) => {
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return (
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<Avatar
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key={id}
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className="CollidingAvatars__avatar"
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i18n={i18n}
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size={AvatarSize.TWENTY_FOUR}
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conversationType={type}
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badge={undefined}
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{...convo}
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/>
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);
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})}
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{/*
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This clip path is a rectangle with the right-bottom corner cut off
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by a circle:
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AAAAAAA
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AAAAAAA
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AAAAA
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AAA
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AAA
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AA
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AA
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The idea is that we cut a circle away from the top avatar so that there
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is a bit of transparent area between two avatars:
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AAAAAAA
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AAAAAAA
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AAAAA
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AAA B
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AAA BB
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AA BBB
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AA BBB
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See CollidingAvatars.scss for how this clipPath is applied.
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*/}
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<svg width={0} height={0} className="CollidingAvatars__clip_svg">
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<clipPath id={clipId} clipPathUnits="objectBoundingBox">
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<path d="M0 0 h1 v0.4166 A0.54166 0.54166 0 0 0.4166 1 H0 Z" />
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</clipPath>
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</svg>
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</div>
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);
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}
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