@blueprintjs/datetime
Version:
Components for interacting with dates and times
95 lines • 5.25 kB
JavaScript
/*
* Copyright 2022 Palantir Technologies, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import classNames from "classnames";
import * as React from "react";
import { AbstractPureComponent, Button, Classes as CoreClasses, DISPLAYNAME_PREFIX, MenuItem, } from "@blueprintjs/core";
import { Select } from "@blueprintjs/select";
import { Classes } from "../../common";
import { formatTimezone, TimezoneDisplayFormat } from "../../common/timezoneDisplayFormat";
import { TIMEZONE_ITEMS } from "../../common/timezoneItems";
import { getInitialTimezoneItems, mapTimezonesWithNames } from "../../common/timezoneNameUtils";
/**
* Timezone select component.
*
* @see https://blueprintjs.com/docs/#datetime/timezone-select
*/
export class TimezoneSelect extends AbstractPureComponent {
static displayName = `${DISPLAYNAME_PREFIX}.TimezoneSelect`;
static defaultProps = {
date: new Date(),
disabled: false,
fill: false,
inputProps: {},
placeholder: "Select timezone...",
popoverProps: {},
showLocalTimezone: false,
};
timezoneItems;
initialTimezoneItems;
constructor(props) {
super(props);
const { showLocalTimezone, inputProps = {}, date } = props;
this.state = { query: inputProps.value || "" };
this.timezoneItems = mapTimezonesWithNames(date, TIMEZONE_ITEMS);
this.initialTimezoneItems = getInitialTimezoneItems(date, showLocalTimezone);
}
render() {
const { children, className, disabled, fill, inputProps, popoverProps } = this.props;
const { query } = this.state;
return (React.createElement(Select, { className: classNames(Classes.TIMEZONE_SELECT, className), disabled: disabled, fill: fill, inputProps: {
placeholder: "Search for timezones...",
...inputProps,
}, itemListPredicate: this.filterItems, itemRenderer: this.renderItem, items: query ? this.timezoneItems : this.initialTimezoneItems, noResults: React.createElement(MenuItem, { disabled: true, roleStructure: "listoption", text: "No matching timezones." }), onItemSelect: this.handleItemSelect, onQueryChange: this.handleQueryChange, popoverProps: {
...popoverProps,
popoverClassName: classNames(Classes.TIMEZONE_SELECT_POPOVER, popoverProps?.popoverClassName),
}, popoverTargetProps: { "aria-label": "timezone" }, resetOnClose: true, resetOnSelect: true }, children ?? this.renderButton()));
}
componentDidUpdate(prevProps, prevState) {
super.componentDidUpdate(prevProps, prevState);
const { date: nextDate } = this.props;
if (this.props.showLocalTimezone !== prevProps.showLocalTimezone) {
this.initialTimezoneItems = getInitialTimezoneItems(nextDate, this.props.showLocalTimezone);
}
if (nextDate != null && nextDate.getTime() !== prevProps.date?.getTime()) {
this.initialTimezoneItems = mapTimezonesWithNames(nextDate, this.initialTimezoneItems);
this.timezoneItems = mapTimezonesWithNames(nextDate, this.timezoneItems);
}
}
renderButton() {
const { buttonProps = {}, disabled, fill, placeholder, value, valueDisplayFormat } = this.props;
const selectedTimezone = this.timezoneItems.find(tz => tz.ianaCode === value);
const buttonContent = selectedTimezone !== undefined ? (formatTimezone(selectedTimezone, valueDisplayFormat ?? TimezoneDisplayFormat.COMPOSITE)) : (React.createElement("span", { className: CoreClasses.TEXT_MUTED }, placeholder));
return React.createElement(Button, { endIcon: "caret-down", disabled: disabled, text: buttonContent, fill: fill, ...buttonProps });
}
filterItems = (query, items) => {
// using list predicate so only one RegExp instance is needed
// escape bad regex characters, let spaces act as any separator
const expr = new RegExp(query.replace(/([[()+*?])/g, "\\$1").replace(" ", "[ _/\\(\\)]+"), "i");
return items.filter(item => expr.test(item.ianaCode) ||
expr.test(item.label) ||
expr.test(item.longName) ||
expr.test(item.shortName));
};
renderItem = (item, { handleClick, modifiers }) => {
if (!modifiers.matchesPredicate) {
return null;
}
return (React.createElement(MenuItem, { key: item.ianaCode, selected: modifiers.active, text: `${item.label}, ${item.longName}`, onClick: handleClick, label: item.shortName }));
};
handleItemSelect = (timezone) => this.props.onChange?.(timezone.ianaCode);
handleQueryChange = (query) => this.setState({ query });
}
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