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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 | 608x 1808x 1808x 1808x 1808x 1808x 1808x 1808x 7232x 1808x 510x 458x 52x 51x 51x 52x 50x 50x 52x 52x 52x 50x 50x 459x 52x 52x 672x 51x 1x 1x 1807x 1807x 1x 459x 459x 459x 1x 459x 1x 1806x 1806x 1x 1x 532x 1x 168x 168x 168x 1x | import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import { ReactElement, useEffect, useId, useRef, useState } from "react";
import { useTranslation } from "react-i18next";
import styled from "styled-components";
import { Checkbox } from "client/components/Checkbox";
import { Option } from "client/components/Dropdown";
import { TertiaryButton } from "client/components/TertiaryButton";
interface Props {
id?: string;
options: Option[];
selectedValues: readonly string[];
onToggle: (value: string) => void;
onClear: () => void;
placeholder: string;
testId?: string;
className?: string;
}
export const MultiSelectDropdown = ({
id,
options,
selectedValues,
onToggle,
onClear,
placeholder,
testId,
className,
}: Props): ReactElement => {
const { t } = useTranslation();
const [open, setOpen] = useState(false);
const containerRef = useRef<HTMLDivElement>(null);
const skipNextToggle = useRef(false);
const generatedId = useId();
const panelId = `${id ?? generatedId}-panel`;
const selectedOptions = options.filter((option) =>
selectedValues.includes(option.value),
);
useEffect(() => {
if (!open) {
return;
}
const handlePointerDown = (event: MouseEvent): void => {
Eif (containerRef.current?.contains(event.target as Node)) {
return;
}
setOpen(false);
// Clicking the control's own label forwards a click to the toggle
// button, which would reopen the panel this handler just closed
const label = (event.target as Element).closest("label");
if (label && id && label.htmlFor === id) {
skipNextToggle.current = true;
}
};
const handleKeyDown = (event: KeyboardEvent): void => {
Eif (event.key === "Escape") {
setOpen(false);
}
};
document.addEventListener("mousedown", handlePointerDown);
document.addEventListener("keydown", handleKeyDown);
return () => {
document.removeEventListener("mousedown", handlePointerDown);
document.removeEventListener("keydown", handleKeyDown);
};
}, [open, id]);
return (
<Container ref={containerRef} className={className}>
{/* Pills hold their own remove buttons, so the dropdown toggle is a
sibling button instead of wrapping the whole control (nested buttons
are invalid HTML) */}
<Control data-testid={testId}>
{selectedOptions.map((option) => (
<TagPill key={option.value}>
{option.title}
<RemoveButton
type="button"
aria-label={t("iconAltText.removeSelection", {
SELECTION: option.title,
})}
onClick={() => {
onToggle(option.value);
}}
>
<FontAwesomeIcon icon="xmark" />
</RemoveButton>
</TagPill>
))}
<ToggleButton
type="button"
id={id}
aria-haspopup="listbox"
aria-expanded={open}
aria-controls={panelId}
onClick={() => {
Iif (skipNextToggle.current) {
skipNextToggle.current = false;
return;
}
setOpen((prev) => !prev);
}}
>
{selectedOptions.length === 0 && (
<Placeholder>{placeholder}</Placeholder>
)}
<CaretIcon icon={open ? "chevron-up" : "chevron-down"} />
</ToggleButton>
</Control>
{open && (
<Panel id={panelId} role="group">
{selectedValues.length > 0 && (
<ClearButton onClick={onClear}>{t("clearSelection")}</ClearButton>
)}
{options.map((option) => (
<Checkbox
key={option.value}
id={`${panelId}-${option.value}`}
label={option.title}
checked={selectedValues.includes(option.value)}
onChange={() => {
onToggle(option.value);
}}
/>
))}
</Panel>
)}
</Container>
);
};
const Container = styled.div`
position: relative;
`;
const Control = styled.div`
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 4px;
box-sizing: border-box;
min-height: 38px;
border: 1px solid ${(props) => props.theme.borderInactive};
border-radius: 6px;
padding: 2px 6px;
background-color: ${(props) => props.theme.backgroundMain};
`;
const TagPill = styled.span`
display: inline-flex;
align-items: center;
gap: 6px;
background-color: ${(props) => props.theme.backgroundTag};
border-radius: 100px;
padding: 4px 8px;
font-size: ${(props) => props.theme.fontSizeSmaller};
color: ${(props) => props.theme.textTag};
white-space: nowrap;
`;
const RemoveButton = styled.button`
display: inline-flex;
align-items: center;
padding: 0;
border: none;
background: none;
color: ${(props) => props.theme.textTag};
cursor: pointer;
`;
const ToggleButton = styled.button`
display: flex;
flex: 1;
align-items: center;
align-self: stretch;
padding: 0;
border: none;
background: none;
font-size: ${(props) => props.theme.fontSizeNormal};
color: ${(props) => props.theme.textMain};
cursor: pointer;
text-align: left;
`;
const Placeholder = styled.span`
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
`;
const CaretIcon = styled(FontAwesomeIcon)`
margin: 0 0 0 auto;
font-size: ${(props) => props.theme.fontSizeSmaller};
`;
const Panel = styled.div`
position: absolute;
/* Above the program list's sticky timeslot headers (z-index: 2) */
z-index: 3;
top: calc(100% + 4px);
left: 0;
right: 0;
display: flex;
flex-direction: column;
gap: 8px;
padding: 12px;
border: 1px solid ${(props) => props.theme.borderInactive};
border-radius: 6px;
background-color: ${(props) => props.theme.backgroundMain};
box-shadow: ${(props) => props.theme.shadowLower};
`;
const ClearButton = styled(TertiaryButton)`
align-self: flex-start;
`;
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