75 lines
2.5 KiB
TypeScript
75 lines
2.5 KiB
TypeScript
/*
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* Copyright 2018 Red Hat, Inc. and/or its affiliates.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 * as React from 'react';
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declare const l18nMsg: {[key: string]: string};
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export interface MsgProps {
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readonly msgKey: string | undefined;
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readonly params?: string[];
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}
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export class Msg extends React.Component<MsgProps> {
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public constructor(props: MsgProps) {
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super(props);
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}
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public render(): React.ReactNode {
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return (
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<React.Fragment>{Msg.localize(this.props.msgKey, this.props.params)}</React.Fragment>
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);
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}
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public static localize(msgKey: string | undefined, params?: string[]): string {
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if (msgKey === undefined) return '';
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let message: string = l18nMsg[this.processKey(msgKey)];
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if (message === undefined) message = msgKey;
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if ((params !== undefined) && (params.length > 0)) {
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params.forEach((value: string, index: number) => {
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value = this.processParam(value);
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message = message.replace('{{param_'+ index + '}}', value);
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})
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}
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return unescape(message);
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}
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// if the message key has Freemarker syntax, remove it
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private static processKey(msgKey: string): string {
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if (!(msgKey.startsWith('${') && msgKey.endsWith('}'))) return msgKey;
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// remove Freemarker syntax
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return msgKey.substring(2, msgKey.length - 1);
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}
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// if the param has Freemarker syntax, try to look up its value
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private static processParam(param: string): string {
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if (!(param.startsWith('${') && param.endsWith('}'))) return param;
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// remove Freemarker syntax
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const key: string = param.substring(2, param.length - 1);
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let value: string = l18nMsg[key];
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if (value === undefined) return param;
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return value;
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}
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}
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