118 lines
3.7 KiB
TypeScript
118 lines
3.7 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { ReactChild } from 'react';
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import React, { useState } from 'react';
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import { noop } from 'lodash';
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import type { LocalizerType } from '../types/Util';
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import { Button, ButtonVariant } from './Button';
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import { Spinner } from './Spinner';
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export enum CallingLobbyJoinButtonVariant {
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CallIsFull = 'CallIsFull',
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Join = 'Join',
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Loading = 'Loading',
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Start = 'Start',
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AskToJoin = 'AskToJoin',
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}
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type PropsType = {
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disabled?: boolean;
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i18n: LocalizerType;
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onClick: () => void;
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variant: CallingLobbyJoinButtonVariant;
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};
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/**
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* This component is a little weird. Why not just render a button with some children?
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*
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* The contents of this component can change but we don't want its size to change, so we
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* render all the variants invisibly, compute the maximum size, and then render the
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* "final" button with those dimensions.
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*
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* For example, we might initially render "Join call" and then render a spinner when you
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* click the button. The button shouldn't resize in that situation.
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*/
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export function CallingLobbyJoinButton({
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disabled,
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i18n,
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onClick,
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variant,
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}: PropsType): JSX.Element {
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const [width, setWidth] = useState<undefined | number>();
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const [height, setHeight] = useState<undefined | number>();
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const childrenByVariant: Record<CallingLobbyJoinButtonVariant, ReactChild> = {
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[CallingLobbyJoinButtonVariant.CallIsFull]: i18n(
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'icu:CallingLobbyJoinButton--call-full'
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),
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[CallingLobbyJoinButtonVariant.Loading]: (
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<Spinner size="18px" svgSize="small" />
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),
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[CallingLobbyJoinButtonVariant.Join]: i18n(
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'icu:CallingLobbyJoinButton--join'
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),
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[CallingLobbyJoinButtonVariant.Start]: i18n(
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'icu:CallingLobbyJoinButton--start'
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),
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[CallingLobbyJoinButtonVariant.AskToJoin]: i18n(
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'icu:CallingLobbyJoinButton--ask-to-join'
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),
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};
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return (
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<>
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{Boolean(width && height) && (
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<Button
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className="CallingLobbyJoinButton CallControls__JoinLeaveButton"
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disabled={disabled}
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onClick={onClick}
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style={{ width, height }}
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tabIndex={0}
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variant={ButtonVariant.Calling}
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>
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{childrenByVariant[variant]}
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</Button>
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)}
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<div
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style={{
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visibility: 'hidden',
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position: 'fixed',
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left: -9999,
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top: -9999,
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}}
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>
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{Object.values(CallingLobbyJoinButtonVariant).map(candidateVariant => (
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<Button
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key={candidateVariant}
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className="CallingLobbyJoinButton CallControls__JoinLeaveButton"
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variant={ButtonVariant.Calling}
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onClick={noop}
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ref={(button: HTMLButtonElement | null) => {
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if (!button) {
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return;
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}
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const { width: variantWidth, height: variantHeight } =
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button.getBoundingClientRect();
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// We could set the padding in CSS, but we don't do that in case some other
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// styling causes a re-render of the button but not of the component. This
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// is easiest to reproduce in Storybook, where the font hasn't loaded yet;
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// we compute the size, then the font makes the text a bit larger, and
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// there's a layout issue.
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setWidth((previousWidth = 0) =>
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Math.ceil(Math.max(previousWidth, variantWidth))
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);
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setHeight((previousHeight = 0) =>
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Math.ceil(Math.max(previousHeight, variantHeight))
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);
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}}
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>
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{childrenByVariant[candidateVariant]}
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</Button>
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))}
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</div>
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</>
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);
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}
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