From b60df56157ee1fd0bd4938799bac05a62fda91a1 Mon Sep 17 00:00:00 2001
From: lookshe <github@lookshe.org>
Date: Sat, 14 Mar 2015 20:45:20 +0100
Subject: initial commit from working version

---
 .../lib/transports/polling-jsonp.js                | 221 +++++++++++++++++++++
 1 file changed, 221 insertions(+)
 create mode 100644 signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/transports/polling-jsonp.js

(limited to 'signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/transports/polling-jsonp.js')

diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/transports/polling-jsonp.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/transports/polling-jsonp.js
new file mode 100644
index 0000000..fde3e79
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/transports/polling-jsonp.js
@@ -0,0 +1,221 @@
+
+/**
+ * Module requirements.
+ */
+
+var Polling = require('./polling')
+  , util = require('../util');
+
+/**
+ * Module exports.
+ */
+
+module.exports = JSONPPolling;
+
+/**
+ * Global reference.
+ */
+
+var global = 'undefined' != typeof window ? window : global;
+
+/**
+ * Cached regular expressions.
+ */
+
+var rNewline = /\n/g;
+
+/**
+ * Global JSONP callbacks.
+ */
+
+var callbacks;
+
+/**
+ * Callbacks count.
+ */
+
+var index = 0;
+
+/**
+ * Noop.
+ */
+
+function empty () { }
+
+/**
+ * JSONP Polling constructor.
+ *
+ * @param {Object} opts.
+ * @api public
+ */
+
+function JSONPPolling (opts) {
+  Polling.call(this, opts);
+
+  // define global callbacks array if not present
+  // we do this here (lazily) to avoid unneeded global pollution
+  if (!callbacks) {
+    // we need to consider multiple engines in the same page
+    if (!global.___eio) global.___eio = [];
+    callbacks = global.___eio;
+  }
+
+  // callback identifier
+  this.index = callbacks.length;
+
+  // add callback to jsonp global
+  var self = this;
+  callbacks.push(function (msg) {
+    self.onData(msg);
+  });
+
+  // append to query string
+  this.query.j = this.index;
+};
+
+/**
+ * Inherits from Polling.
+ */
+
+util.inherits(JSONPPolling, Polling);
+
+/**
+ * Opens the socket.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doOpen = function () {
+  var self = this;
+  util.defer(function () {
+    Polling.prototype.doOpen.call(self);
+  });
+};
+
+/**
+ * Closes the socket
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doClose = function () {
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  if (this.form) {
+    this.form.parentNode.removeChild(this.form);
+    this.form = null;
+  }
+
+  Polling.prototype.doClose.call(this);
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doPoll = function () {
+  var script = document.createElement('script');
+
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  script.async = true;
+  script.src = this.uri();
+
+  var insertAt = document.getElementsByTagName('script')[0];
+  insertAt.parentNode.insertBefore(script, insertAt);
+  this.script = script;
+
+  if (util.ua.gecko) {
+    setTimeout(function () {
+      var iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      document.body.removeChild(iframe);
+    }, 100);
+  }
+};
+
+/**
+ * Writes with a hidden iframe.
+ *
+ * @param {String} data to send
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+JSONPPolling.prototype.doWrite = function (data, fn) {
+  var self = this;
+
+  if (!this.form) {
+    var form = document.createElement('form')
+      , area = document.createElement('textarea')
+      , id = this.iframeId = 'eio_iframe_' + this.index
+      , iframe;
+
+    form.className = 'socketio';
+    form.style.position = 'absolute';
+    form.style.top = '-1000px';
+    form.style.left = '-1000px';
+    form.target = id;
+    form.method = 'POST';
+    form.setAttribute('accept-charset', 'utf-8');
+    area.name = 'd';
+    form.appendChild(area);
+    document.body.appendChild(form);
+
+    this.form = form;
+    this.area = area;
+  }
+
+  this.form.action = this.uri();
+
+  function complete () {
+    initIframe();
+    fn();
+  };
+
+  function initIframe () {
+    if (self.iframe) {
+      self.form.removeChild(self.iframe);
+    }
+
+    try {
+      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+      iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
+    } catch (e) {
+      iframe = document.createElement('iframe');
+      iframe.name = self.iframeId;
+    }
+
+    iframe.id = self.iframeId;
+
+    self.form.appendChild(iframe);
+    self.iframe = iframe;
+  };
+
+  initIframe();
+
+  // escape \n to prevent it from being converted into \r\n by some UAs
+  this.area.value = data.replace(rNewline, '\\n');
+
+  try {
+    this.form.submit();
+  } catch(e) {}
+
+  if (this.iframe.attachEvent) {
+    this.iframe.onreadystatechange = function(){
+      if (self.iframe.readyState == 'complete') {
+        complete();
+      }
+    };
+  } else {
+    this.iframe.onload = complete;
+  }
+};
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