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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 { measurements, normalText } from './common-styles';
import RelayStatusIndicator from './RelayStatusIndicator';
interface IButtonColorProps {
selected: boolean;
disabled?: boolean;
location?: RelayLocation;
}
const buttonColor = (props: IButtonColorProps) => {
let background = colors.blue;
if (props.selected) {
background = colors.green;
} else if (props.location) {
if ('hostname' in props.location) {
background = colors.blue20;
} else if ('city' in props.location) {
background = colors.blue40;
}
}
let backgroundHover = colors.blue80;
if (props.selected || props.disabled) {
backgroundHover = background;
} else if (props.location) {
backgroundHover = colors.blue80;
}
return {
backgroundColor: background,
':not(:disabled):hover': {
backgroundColor: backgroundHover,
},
};
};
export const StyledLocationRowContainer = styled(Cell.Container)({
display: 'flex',
padding: 0,
background: 'none',
});
export const StyledLocationRowButton = styled(Cell.Row)(
buttonColor,
(props: { location?: RelayLocation }) => {
const paddingLeft =
props.location && 'hostname' in props.location
? 50
: props.location && 'city' in props.location
? 34
: 18;
return {
flex: 1,
border: 'none',
padding: `0 10px 0 ${paddingLeft}px`,
margin: 0,
};
},
);
export const StyledLocationRowIcon = styled.button(buttonColor, {
position: 'relative',
alignSelf: 'stretch',
paddingLeft: '22px',
paddingRight: measurements.viewMargin,
'&::before': {
content: '""',
position: 'absolute',
margin: 'auto',
top: 0,
left: 0,
bottom: 0,
height: '50%',
width: '1px',
backgroundColor: colors.darkBlue,
},
});
export const StyledLocationRowLabel = styled(Cell.Label)(normalText, {
fontWeight: 400,
});
interface IProps {
name: string;
active: boolean;
disabled: 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 (
<>
<StyledLocationRowContainer ref={ref} disabled={props.disabled}>
<StyledLocationRowButton
as="button"
ref={buttonRef}
onClick={handleClick}
selected={props.selected}
location={props.location}
disabled={props.disabled}>
<RelayStatusIndicator active={props.active} selected={props.selected} />
<StyledLocationRowLabel>{props.name}</StyledLocationRowLabel>
</StyledLocationRowButton>
{hasChildren ? (
<StyledLocationRowIcon
as={ChevronButton}
onClick={toggleCollapse}
up={props.expanded ?? false}
selected={props.selected}
disabled={props.disabled}
location={props.location}
aria-label={sprintf(
props.expanded
? messages.pgettext('accessibility', 'Collapse %(location)s')
: messages.pgettext('accessibility', 'Expand %(location)s'),
{ location: props.name },
)}
/>
) : null}
</StyledLocationRowContainer>
{hasChildren && (
<Accordion
expanded={props.expanded}
onWillExpand={onWillExpand}
onTransitionEnd={props.onTransitionEnd}
animationDuration={150}>
<Cell.Group noMarginBottom>{props.children}</Cell.Group>
</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.disabled === nextProps.disabled &&
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))
);
}
|
