session-desktop/ts/components/Intl.tsx

77 lines
1.9 KiB
TypeScript

import React from 'react';
import { RenderTextCallbackType } from '../types/Util';
type FullJSX = Array<JSX.Element | string> | JSX.Element | string;
interface Props {
/** The translation string id */
id: string;
components?: Array<FullJSX>;
renderText?: RenderTextCallbackType;
}
export class Intl extends React.Component<Props> {
public static defaultProps: Partial<Props> = {
renderText: ({ text }) => text,
};
public getComponent(index: number): FullJSX | undefined {
const { id, components } = this.props;
if (!components || !components.length || components.length <= index) {
// tslint:disable-next-line no-console
console.log(`Error: Intl missing provided components for id ${id}, index ${index}`);
return;
}
return components[index];
}
public render() {
const { id, renderText } = this.props;
const text = window.i18n(id);
const results: Array<any> = [];
const FIND_REPLACEMENTS = /\$[^$]+\$/g;
// We have to do this, because renderText is not required in our Props object,
// but it is always provided via defaultProps.
if (!renderText) {
return;
}
let componentIndex = 0;
let key = 0;
let lastTextIndex = 0;
let match = FIND_REPLACEMENTS.exec(text);
if (!match) {
return renderText({ text, key: 0 });
}
while (match) {
if (lastTextIndex < match.index) {
const textWithNoReplacements = text.slice(lastTextIndex, match.index);
results.push(renderText({ text: textWithNoReplacements, key: key }));
key += 1;
}
results.push(this.getComponent(componentIndex));
componentIndex += 1;
// @ts-ignore
lastTextIndex = FIND_REPLACEMENTS.lastIndex;
match = FIND_REPLACEMENTS.exec(text);
}
if (lastTextIndex < text.length) {
results.push(renderText({ text: text.slice(lastTextIndex), key: key }));
key += 1;
}
return results;
}
}