rx-player
Version:
Canal+ HTML5 Video Player
45 lines (44 loc) • 1.81 kB
JavaScript
/**
* 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 { ProberStatus } from "../types";
/**
* @param {Object} config
* @returns {Promise}
*/
export default function probeMatchMedia(config) {
return new Promise((resolve) => {
if (typeof globalScope.matchMedia !== "function") {
throw new Error("MediaCapabilitiesProber >>> API_CALL: " + "matchMedia not available");
}
if (isNullOrUndefined(config.display) ||
config.display.colorSpace === undefined ||
config.display.colorSpace.length === 0) {
throw new Error("MediaCapabilitiesProber >>> API_CALL: " +
"Not enough arguments for calling matchMedia.");
}
const match = globalScope.matchMedia(`(color-gamut: ${config.display.colorSpace})`);
if (match.media === "not all") {
throw new Error("MediaCapabilitiesProber >>> API_CALL: " +
"Bad arguments for calling matchMedia.");
}
const result = [
match.matches ? ProberStatus.Supported : ProberStatus.NotSupported,
];
resolve(result);
});
}