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import React, { useCallback, useRef } from 'react';
import { sprintf } from 'sprintf-js';
import styled from 'styled-components';
import { colors } from '../../config.json';
import { compareRelayLocation, RelayLocation } from '../../shared/daemon-rpc-types';
import { messages } from '../../shared/gettext';
import Accordion from './Accordion';
import * as Cell from './cell';
import ChevronButton from './ChevronButton';
import RelayStatusIndicator from './RelayStatusIndicator';
interface IContainerProps {
selected: boolean;
disabled: boolean;
location: RelayLocation;
}
const Container = styled(Cell.Container)((props: IContainerProps) => {
const background =
'hostname' in props.location
? colors.blue20
: 'city' in props.location
? colors.blue40
: colors.blue;
const backgroundHover = 'country' in props.location ? colors.blue80 : colors.blue80;
return {
display: 'flex',
// The actual padding is 22px except for the tick icon which has 18.
paddingLeft: '18px',
marginBottom: '1px',
backgroundColor: props.selected ? colors.green : background,
':not(:disabled):hover': {
backgroundColor: props.selected
? colors.green
: props.disabled
? background
: backgroundHover,
},
};
});
const Button = styled.button((props: { location: RelayLocation }) => {
const paddingLeft = 'hostname' in props.location ? 32 : 'city' in props.location ? 16 : 0;
return {
display: 'flex',
alignItems: 'center',
flex: 1,
border: 'none',
background: 'none',
padding: `0 0 0 ${paddingLeft}px`,
margin: 0,
};
});
const StyledChevronButton = styled(ChevronButton)({
marginLeft: '18px',
});
const Label = styled(Cell.Label)({
fontFamily: 'Open Sans',
fontWeight: 'normal',
fontSize: '16px',
});
interface IProps {
name: string;
active: boolean;
location: RelayLocation;
selected: boolean;
expanded?: boolean;
onSelect?: (location: RelayLocation) => void;
onExpand?: (location: RelayLocation, value: boolean) => void;
onWillExpand?: (locationRect: DOMRect, expandedContentHeight: number) => void;
onTransitionEnd?: () => void;
children?: React.ReactElement<IProps>[];
}
function LocationRow(props: IProps, ref: React.Ref<HTMLDivElement>) {
const hasChildren = props.children !== undefined;
const buttonRef = useRef<HTMLButtonElement>() as React.RefObject<HTMLButtonElement>;
const toggleCollapse = useCallback(() => {
props.onExpand?.(props.location, !props.expanded);
}, [props.onExpand, props.expanded, props.location]);
const handleClick = useCallback(() => props.onSelect?.(props.location), [
props.onSelect,
props.location,
]);
const onWillExpand = useCallback(
(nextHeight: number) => {
const buttonRect = buttonRef.current?.getBoundingClientRect();
if (buttonRect) {
props.onWillExpand?.(buttonRect, nextHeight);
}
},
[props.onWillExpand],
);
return (
<>
<Container
ref={ref}
selected={props.selected}
disabled={!props.active}
location={props.location}>
<Button
ref={buttonRef}
onClick={handleClick}
location={props.location}
disabled={!props.active}>
<RelayStatusIndicator active={props.active} selected={props.selected} />
<Label>{props.name}</Label>
</Button>
{hasChildren ? (
<StyledChevronButton
onClick={toggleCollapse}
up={props.expanded ?? false}
aria-label={sprintf(
props.expanded
? messages.pgettext('accessibility', 'Collapse %(location)s')
: messages.pgettext('accessibility', 'Expand %(location)s'),
{ location: props.name },
)}
/>
) : null}
</Container>
{hasChildren && (
<Accordion
expanded={props.expanded}
onWillExpand={onWillExpand}
onTransitionEnd={props.onTransitionEnd}
animationDuration={150}>
{props.children}
</Accordion>
)}
</>
);
}
export default React.memo(React.forwardRef(LocationRow), compareProps);
function compareProps(oldProps: IProps, nextProps: IProps): boolean {
return (
React.Children.count(oldProps.children) === React.Children.count(nextProps.children) &&
oldProps.name === nextProps.name &&
oldProps.active === nextProps.active &&
oldProps.selected === nextProps.selected &&
oldProps.expanded === nextProps.expanded &&
oldProps.onSelect === nextProps.onSelect &&
oldProps.onExpand === nextProps.onExpand &&
oldProps.onWillExpand === nextProps.onWillExpand &&
oldProps.onTransitionEnd === nextProps.onTransitionEnd &&
compareRelayLocation(oldProps.location, nextProps.location) &&
compareChildren(oldProps.children, nextProps.children)
);
}
function compareChildren(
oldChildren?: React.ReactElement<IProps>[],
nextChildren?: React.ReactElement<IProps>[],
) {
if (oldChildren === undefined || nextChildren === undefined) {
return oldChildren === nextChildren;
}
return (
oldChildren.length === nextChildren.length &&
oldChildren.every((oldChild, i) => compareProps(oldChild.props, nextChildren[i].props))
);
}
|
