Method constructor

systemvm/agent/noVNC/core/rfb.js:94–327

(target, urlOrChannel, options)

export default class RFB extends EventTargetMixin {
    constructor(target, urlOrChannel, options) {
        if (!target) {
            throw new Error("Must specify target");
        }
        if (!urlOrChannel) {
            throw new Error("Must specify URL, WebSocket or RTCDataChannel");
        }

        // We rely on modern APIs which might not be available in an
        // insecure context
        if (!window.isSecureContext) {
            Log.Error("noVNC requires a secure context (TLS). Expect crashes!");
        }

        super();

        this._target = target;

        if (typeof urlOrChannel === "string") {
            this._url = urlOrChannel;
        } else {
            this._url = null;
            this._rawChannel = urlOrChannel;
        }

        // Connection details
        options = options || {};
        this._rfbCredentials = options.credentials || {};
        this._shared = 'shared' in options ? !!options.shared : true;
        this._repeaterID = options.repeaterID || '';
        this._language = options.language || '';
        this._wsProtocols = ['binary'];

        // Keymaps
        this._scancodes = {};
        if (this._language === "jp") {
            this._scancodes = SCANCODES_JP;
        } else if (this._language === "es-latam") {
            this._scancodes = SCANCODES_ES_LATAM;
        }

        // Internal state
        this._rfbConnectionState = '';
        this._rfbInitState = '';
        this._rfbAuthScheme = -1;
        this._rfbCleanDisconnect = true;
        this._rfbRSAAESAuthenticationState = null;

        // Server capabilities
        this._rfbVersion = 0;
        this._rfbMaxVersion = 3.8;
        this._rfbTightVNC = false;
        this._rfbVeNCryptState = 0;
        this._rfbXvpVer = 0;

        this._fbWidth = 0;
        this._fbHeight = 0;