Function DevdReconnectingWebSocket

livereload/static/client.js:6–246

(url, protocols, options)

    }

    function DevdReconnectingWebSocket(url, protocols, options) {

        // Default settings
        var settings = {

            /** Whether this instance should log debug messages. */
            debug: false,

            /** Whether or not the websocket should attempt to connect immediately upon instantiation. */
            automaticOpen: true,

            /** The number of milliseconds to delay before attempting to reconnect. */
            reconnectInterval: 1000,
            /** The maximum number of milliseconds to delay a reconnection attempt. */
            maxReconnectInterval: 30000,
            /** The rate of increase of the reconnect delay. Allows reconnect attempts to back off when problems persist. */
            reconnectDecay: 1.5,

            /** The maximum time in milliseconds to wait for a connection to succeed before closing and retrying. */
            timeoutInterval: 2000,

            /** The maximum number of reconnection attempts to make. Unlimited if null. */
            maxReconnectAttempts: null,

            /** The binary type, possible values 'blob' or 'arraybuffer', default 'blob'. */
            binaryType: 'blob'
        }
        if (!options) {
            options = {};
        }

        // Overwrite and define settings with options if they exist.
        for (var key in settings) {
            if (typeof options[key] !== 'undefined') {
                this[key] = options[key];
            } else {
                this[key] = settings[key];
            }
        }

        // These should be treated as read-only properties

        /** The URL as resolved by the constructor. This is always an absolute URL. Read only. */
        this.url = url;

        /** The number of attempted reconnects since starting, or the last successful connection. Read only. */
        this.reconnectAttempts = 0;

        /**
         * The current state of the connection.
         * Can be one of: WebSocket.CONNECTING, WebSocket.OPEN, WebSocket.CLOSING, WebSocket.CLOSED
         * Read only.
         */
        this.readyState = WebSocket.CONNECTING;

        /**
         * A string indicating the name of the sub-protocol the server selected; this will be one of
         * the strings specified in the protocols parameter when creating the WebSocket object.