80 lines
3.2 KiB
JavaScript
80 lines
3.2 KiB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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import { Html5QrcodeStrings } from "../strings";
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export class CameraRetriever {
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static retrieve() {
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if (navigator.mediaDevices) {
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return CameraRetriever.getCamerasFromMediaDevices();
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}
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var mst = MediaStreamTrack;
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if (MediaStreamTrack && mst.getSources) {
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return CameraRetriever.getCamerasFromMediaStreamTrack();
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}
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return CameraRetriever.rejectWithError();
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}
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static rejectWithError() {
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let errorMessage = Html5QrcodeStrings.unableToQuerySupportedDevices();
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if (!CameraRetriever.isHttpsOrLocalhost()) {
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errorMessage = Html5QrcodeStrings.insecureContextCameraQueryError();
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}
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return Promise.reject(errorMessage);
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}
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static isHttpsOrLocalhost() {
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if (location.protocol === "https:") {
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return true;
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}
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const host = location.host.split(":")[0];
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return host === "127.0.0.1" || host === "localhost";
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}
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static getCamerasFromMediaDevices() {
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return __awaiter(this, void 0, void 0, function* () {
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const closeActiveStreams = (stream) => {
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const tracks = stream.getVideoTracks();
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for (const track of tracks) {
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track.enabled = false;
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track.stop();
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stream.removeTrack(track);
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}
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};
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let mediaStream = yield navigator.mediaDevices.getUserMedia({ audio: false, video: true });
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let devices = yield navigator.mediaDevices.enumerateDevices();
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let results = [];
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for (const device of devices) {
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if (device.kind === "videoinput") {
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results.push({
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id: device.deviceId,
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label: device.label
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});
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}
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}
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closeActiveStreams(mediaStream);
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return results;
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});
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}
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static getCamerasFromMediaStreamTrack() {
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return new Promise((resolve, _) => {
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const callback = (sourceInfos) => {
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const results = [];
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for (const sourceInfo of sourceInfos) {
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if (sourceInfo.kind === "video") {
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results.push({
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id: sourceInfo.id,
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label: sourceInfo.label
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});
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}
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}
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resolve(results);
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};
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var mst = MediaStreamTrack;
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mst.getSources(callback);
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});
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}
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}
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//# sourceMappingURL=retriever.js.map
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