jitsi_mod/libs/modules/connectionquality.bundle.js

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var n;"undefined"!=typeof window?n=window:"undefined"!=typeof global?n=global:"undefined"!=typeof self&&(n=self),n.connectionquality=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var EventEmitter = require("events");
var eventEmitter = new EventEmitter();

/**
 * local stats
 * @type {{}}
 */
var stats = {};

/**
 * remote stats
 * @type {{}}
 */
var remoteStats = {};

/**
 * Interval for sending statistics to other participants
 * @type {null}
 */
var sendIntervalId = null;


/**
 * Start statistics sending.
 */
function startSendingStats() {
    sendStats();
    sendIntervalId = setInterval(sendStats, 10000);
}

/**
 * Sends statistics to other participants
 */
function sendStats() {
    xmpp.addToPresence("connectionQuality", convertToMUCStats(stats));
}

/**
 * Converts statistics to format for sending through XMPP
 * @param stats the statistics
 * @returns {{bitrate_donwload: *, bitrate_uplpoad: *, packetLoss_total: *, packetLoss_download: *, packetLoss_upload: *}}
 */
function convertToMUCStats(stats) {
    return {
        "bitrate_download": stats.bitrate.download,
        "bitrate_upload": stats.bitrate.upload,
        "packetLoss_total": stats.packetLoss.total,
        "packetLoss_download": stats.packetLoss.download,
        "packetLoss_upload": stats.packetLoss.upload
    };
}

/**
 * Converts statitistics to format used by VideoLayout
 * @param stats
 * @returns {{bitrate: {download: *, upload: *}, packetLoss: {total: *, download: *, upload: *}}}
 */
function parseMUCStats(stats) {
    return {
        bitrate: {
            download: stats.bitrate_download,
            upload: stats.bitrate_upload
        },
        packetLoss: {
            total: stats.packetLoss_total,
            download: stats.packetLoss_download,
            upload: stats.packetLoss_upload
        }
    };
}


var ConnectionQuality = {
    init: function () {
        xmpp.addListener(XMPPEvents.REMOTE_STATS, this.updateRemoteStats);
        statistics.addConnectionStatsListener(this.updateLocalStats);
        statistics.addRemoteStatsStopListener(this.stopSendingStats);

    },

    /**
     * Updates the local statistics
     * @param data new statistics
     */
    updateLocalStats: function (data) {
        stats = data;
        eventEmitter.emit(CQEvents.LOCALSTATS_UPDATED, 100 - stats.packetLoss.total, stats);
        if (sendIntervalId == null) {
            startSendingStats();
        }
    },

    /**
     * Updates remote statistics
     * @param jid the jid associated with the statistics
     * @param data the statistics
     */
    updateRemoteStats: function (jid, data) {
        if (data == null || data.packetLoss_total == null) {
            eventEmitter.emit(CQEvents.REMOTESTATS_UPDATED, jid, null, null);
            return;
        }
        remoteStats[jid] = parseMUCStats(data);

        eventEmitter.emit(CQEvents.REMOTESTATS_UPDATED,
            jid, 100 - data.packetLoss_total, remoteStats[jid]);
    },

    /**
     * Stops statistics sending.
     */
    stopSendingStats: function () {
        clearInterval(sendIntervalId);
        sendIntervalId = null;
        //notify UI about stopping statistics gathering
        eventEmitter.emit(CQEvents.STOP);
    },

    /**
     * Returns the local statistics.
     */
    getStats: function () {
        return stats;
    },
    
    addListener: function (type, listener) {
        eventEmitter.on(type, listener);
    }

};

module.exports = ConnectionQuality;
},{"events":2}],2:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      er = arguments[1];
      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      }
      throw TypeError('Uncaught, unspecified "error" event.');
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
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  if (isFunction(handler)) {
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        break;
      case 2:
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        break;
      case 3:
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        break;
      // slower
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        args = new Array(len - 1);
        for (i = 1; i < len; i++)
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        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    len = arguments.length;
    args = new Array(len - 1);
    for (i = 1; i < len; i++)
      args[i - 1] = arguments[i];

    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    var m;
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
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    if (this._events.removeListener)
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  } else if (isObject(list)) {
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        break;
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    if (position < 0)
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    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.listenerCount = function(emitter, type) {
  var ret;
  if (!emitter._events || !emitter._events[type])
    ret = 0;
  else if (isFunction(emitter._events[type]))
    ret = 1;
  else
    ret = emitter._events[type].length;
  return ret;
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}]},{},[1])(1)
});