/** * Copyright 2015 CANAL+ Group * * 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 globalScope from "../../../../utils/global_scope"; import isNullOrUndefined from "../../../../utils/is_null_or_undefined"; import type { IMediaConfiguration } from "../types"; /** * @param {Object} config * @returns {string} */ export default function probeMatchMedia( config: IMediaConfiguration, ): "Supported" | "NotSupported" { if (typeof globalScope.matchMedia !== "function") { throw new Error("matchMedia API not available"); } if ( isNullOrUndefined(config.display) || config.display.colorSpace === undefined || config.display.colorSpace.length === 0 ) { throw new Error("Not enough arguments for calling matchMedia."); } const match = globalScope.matchMedia(`(color-gamut: ${config.display.colorSpace})`); if (match.media === "not all") { throw new Error("Bad arguments for calling matchMedia."); } return match.matches ? "Supported" : "NotSupported"; }