custom-card-helpers/src/compute-rtl.ts

Set of helpful functions and types for Custom Card creators

import { HomeAssistant } from "./types";

export function computeRTL(hass: HomeAssistant) {
  const lang = hass?.locale?.language || "en";
  if (hass.translationMetadata.translations[lang]) {
    return hass.translationMetadata.translations[lang].isRTL || false;
  }
  return false;
}

export function computeRTLDirection(hass: HomeAssistant) {
  return computeRTL(hass) ? "rtl" : "ltr";
}