pad.pub0.org/static/js/pad_connectionstatus.js

/**
 * This code is mostly from the old Etherpad. Please help us to comment this code. 
 * This helps other people to understand this code better and helps them to improve it.
 * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
 */

/**
 * Copyright 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS-IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var padmodals = require('/pad_modals').padmodals;

var padconnectionstatus = (function()
{

  var status = {
    what: 'connecting'
  };

  var self = {
    init: function()
    {
      $('button#forcereconnect').click(function()
      {
        window.location.reload();
      });
    },
    connected: function()
    {
      status = {
        what: 'connected'
      };
      padmodals.hideModal(500);
    },
    reconnecting: function()
    {
      status = {
        what: 'reconnecting'
      };
      $("#connectionbox").get(0).className = 'modaldialog cboxreconnecting';
      padmodals.showModal("#connectionbox", 500);
    },
    disconnected: function(msg)
    {
      if(status.what == "disconnected")
        return;
      
      status = {
        what: 'disconnected',
        why: msg
      };
      var k = String(msg).toLowerCase(); // known reason why
      if (!(k == 'userdup' || k == 'deleted' || k == 'looping' || k == 'slowcommit' || k == 'initsocketfail' || k == 'unauth'))
      {
        k = 'unknown';
      }
      
      var cls = 'modaldialog cboxdisconnected cboxdisconnected_' + k;
      $("#connectionbox").get(0).className = cls;
      padmodals.showModal("#connectionbox", 500);

      $('button#forcereconnect').click(function()
      {
        window.location.reload();
      });
    },
    isFullyConnected: function()
    {
      return status.what == 'connected';
    },
    getStatus: function()
    {
      return status;
    }
  };
  return self;
}());

exports.padconnectionstatus = padconnectionstatus;