/**
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* @fileoverview
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* Libraries associated with Camera Permissions.
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*
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* @author mebjas <minhazav@gmail.com>
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*/
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/**
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* Permission management around Camera in javascript.
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*
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* TODO(mebjas): Migrate camera specific code / logic to this class / library.
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*/
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export class CameraPermissions {
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/**
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* Returns {@code true} if the web page already has access to user camera
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* permissions.
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*/
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public static async hasPermissions(): Promise<boolean> {
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// TODO(mebjas): Use Permissions Query API, once support is widespread.
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// https://developer.mozilla.org/en-US/docs/Web/API/Permissions/query
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let devices = await navigator.mediaDevices.enumerateDevices();
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for (const device of devices) {
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// Hacky way to check if camera permissions are granted. Device
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// labels are only set in case user has granted permissions.
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if(device.kind === "videoinput" && device.label) {
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return true;
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}
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}
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return false;
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}
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}
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