da7aa4055e
* Conform more of the code base to strict null checking * More strict fixes * More strict work * Fix missing optional type * Iterate
130 lines
4.2 KiB
TypeScript
130 lines
4.2 KiB
TypeScript
/*
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Copyright 2017 Marcel Radzio (MTRNord)
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Copyright 2017 Vector Creations Ltd.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from "react";
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import * as languageHandler from "../../../languageHandler";
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import SettingsStore from "../../../settings/SettingsStore";
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import { _t } from "../../../languageHandler";
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import Spinner from "./Spinner";
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import Dropdown from "./Dropdown";
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type Languages = Awaited<ReturnType<typeof languageHandler.getAllLanguagesFromJson>>;
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function languageMatchesSearchQuery(query: string, language: Languages[0]): boolean {
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if (language.label.toUpperCase().includes(query.toUpperCase())) return true;
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if (language.value.toUpperCase() === query.toUpperCase()) return true;
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return false;
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}
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interface IProps {
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className?: string;
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onOptionChange: (language: string) => void;
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value?: string;
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disabled?: boolean;
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}
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interface IState {
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searchQuery: string;
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langs: Languages;
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}
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export default class LanguageDropdown extends React.Component<IProps, IState> {
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public constructor(props: IProps) {
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super(props);
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this.state = {
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searchQuery: "",
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langs: null,
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};
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}
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public componentDidMount(): void {
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languageHandler
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.getAllLanguagesFromJson()
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.then((langs) => {
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langs.sort(function (a, b) {
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if (a.label < b.label) return -1;
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if (a.label > b.label) return 1;
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return 0;
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});
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this.setState({ langs });
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})
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.catch(() => {
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this.setState({ langs: [{ value: "en", label: "English" }] });
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});
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if (!this.props.value) {
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// If no value is given, we start with the first
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// country selected, but our parent component
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// doesn't know this, therefore we do this.
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const language = languageHandler.getUserLanguage();
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this.props.onOptionChange(language);
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}
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}
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private onSearchChange = (search: string): void => {
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this.setState({
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searchQuery: search,
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});
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};
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public render(): React.ReactNode {
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if (this.state.langs === null) {
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return <Spinner />;
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}
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let displayedLanguages: Awaited<ReturnType<typeof languageHandler.getAllLanguagesFromJson>>;
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if (this.state.searchQuery) {
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displayedLanguages = this.state.langs.filter((lang) => {
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return languageMatchesSearchQuery(this.state.searchQuery, lang);
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});
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} else {
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displayedLanguages = this.state.langs;
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}
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const options = displayedLanguages.map((language) => {
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return <div key={language.value}>{language.label}</div>;
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});
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// default value here too, otherwise we need to handle null / undefined
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// values between mounting and the initial value propagating
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let language = SettingsStore.getValue("language", null, /*excludeDefault:*/ true);
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let value = null;
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if (language) {
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value = this.props.value || language;
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} else {
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language = navigator.language || navigator.userLanguage;
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value = this.props.value || language;
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}
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return (
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<Dropdown
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id="mx_LanguageDropdown"
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className={this.props.className}
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onOptionChange={this.props.onOptionChange}
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onSearchChange={this.onSearchChange}
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searchEnabled={true}
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value={value}
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label={_t("Language Dropdown")}
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disabled={this.props.disabled}
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>
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{options}
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</Dropdown>
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);
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}
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}
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