ladybird/Libraries/LibWeb/EncryptedMediaExtensions/MediaKeySystemAccess.idl

// https://w3c.github.io/encrypted-media/#mediakeysystemaccess-interface
[Exposed=Window, SecureContext] 
interface MediaKeySystemAccess {
    readonly attribute Utf16DOMString keySystem;
    MediaKeySystemConfiguration getConfiguration();
    [FIXME] Promise<MediaKeys> createMediaKeys();
};

// https://w3c.github.io/encrypted-media/#dom-mediakeysrequirement
enum MediaKeysRequirement {
    "required",
    "optional",
    "not-allowed"
};

// https://w3c.github.io/encrypted-media/#dom-mediakeysystemconfiguration
dictionary MediaKeySystemConfiguration {
    Utf16DOMString                          label = "";
    sequence<Utf16DOMString>                initDataTypes = [];
    sequence<MediaKeySystemMediaCapability> audioCapabilities = [];
    sequence<MediaKeySystemMediaCapability> videoCapabilities = [];
    MediaKeysRequirement                    distinctiveIdentifier = "optional";
    MediaKeysRequirement                    persistentState = "optional";
    sequence<Utf16DOMString>                sessionTypes;
};

// https://w3c.github.io/encrypted-media/#dom-mediakeysystemmediacapability
dictionary MediaKeySystemMediaCapability {
    Utf16DOMString contentType = "";
    Utf16DOMString? encryptionScheme = null;
    Utf16DOMString robustness = "";
};

enum MediaKeySessionType {
    "temporary",
    "persistent-license"
};

// https://w3c.github.io/encrypted-media/#navigator-extension-requestmediakeysystemaccess
[Exposed=Window]
partial interface Navigator {
    [SecureContext] Promise<MediaKeySystemAccess> requestMediaKeySystemAccess(
        Utf16DOMString keySystem, 
        sequence<MediaKeySystemConfiguration> supportedConfigurations
    );
};