var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
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) {
|
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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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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}
|
return CameraRetriever.rejectWithError();
|
}
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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();
|
}
|
return Promise.reject(errorMessage);
|
}
|
static isHttpsOrLocalhost() {
|
if (location.protocol === "https:") {
|
return true;
|
}
|
const host = location.host.split(":")[0];
|
return host === "127.0.0.1" || host === "localhost";
|
}
|
static getCamerasFromMediaDevices() {
|
return __awaiter(this, void 0, void 0, function* () {
|
const closeActiveStreams = (stream) => {
|
const tracks = stream.getVideoTracks();
|
for (const track of tracks) {
|
track.enabled = false;
|
track.stop();
|
stream.removeTrack(track);
|
}
|
};
|
let mediaStream = yield navigator.mediaDevices.getUserMedia({ audio: false, video: true });
|
let devices = yield navigator.mediaDevices.enumerateDevices();
|
let results = [];
|
for (const device of devices) {
|
if (device.kind === "videoinput") {
|
results.push({
|
id: device.deviceId,
|
label: device.label
|
});
|
}
|
}
|
closeActiveStreams(mediaStream);
|
return results;
|
});
|
}
|
static getCamerasFromMediaStreamTrack() {
|
return new Promise((resolve, _) => {
|
const callback = (sourceInfos) => {
|
const results = [];
|
for (const sourceInfo of sourceInfos) {
|
if (sourceInfo.kind === "video") {
|
results.push({
|
id: sourceInfo.id,
|
label: sourceInfo.label
|
});
|
}
|
}
|
resolve(results);
|
};
|
var mst = MediaStreamTrack;
|
mst.getSources(callback);
|
});
|
}
|
}
|
//# sourceMappingURL=retriever.js.map
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