1 files changed, 111 insertions, 0 deletions
diff --git a/lib/webcals/xhr.js b/lib/webcals/xhr.js
new file mode 100644
index 0000000..adec5a6
--- /dev/null
+++ b/lib/webcals/xhr.js
@@ -0,0 +1,111 @@
+/**
+@namespace
+*/
+(function(module, ns) {
+  var Native;
+
+  if (typeof(window) === 'undefined') {
+    Native = require('xmlhttprequest').XMLHttpRequest;
+  } else {
+    Native = window.XMLHttpRequest;
+  }
+
+  /**
+   * Creates a XHR wrapper.
+   * Depending on the platform this is loaded
+   * from the correct wrapper type will be used.
+   *
+   * Options are derived from properties on the prototype.
+   * See each property for its default value.
+   *
+   * @class
+   * @name CalDav.Xhr
+   * @param {Object} options options for xhr.
+   * @param {String} [options.method="GET"] any HTTP verb like 'GET' or 'POST'.
+   * @param {Boolean} [options.async] false will indicate
+   *                   a synchronous request.
+   * @param {Object} [options.headers] full of http headers.
+   * @param {Object} [options.data] post data.
+   */
+  function Xhr(options) {
+    var key;
+    if (typeof(options) === 'undefined') {
+      options = {};
+    }
+
+    for (key in options) {
+      if (options.hasOwnProperty(key)) {
+        this[key] = options[key];
+      }
+    }
+  }
+
+  Xhr.prototype = {
+    /** @scope CalDav.Xhr.prototype */
+
+    xhrClass: Native,
+    method: 'GET',
+    async: true,
+    waiting: false,
+    user: null,
+    password: null,
+
+    headers: {},
+    data: {},
+
+    _seralize: function _seralize() {
+      return this.data;
+    },
+
+    /**
+     * Aborts request if its in progress.
+     */
+    abort: function abort() {
+      if (this.xhr) {
+        this.xhr.abort();
+      }
+    },
+
+    /**
+     * Sends request to server.
+     *
+     * @param {Function} callback success/failure handler.
+     */
+    send: function send(callback) {
+      var header, xhr;
+
+      if (typeof(callback) === 'undefined') {
+        callback = this.callback;
+      }
+
+      xhr = this.xhr = new this.xhrClass();
+      xhr.open(this.method, this.url, this.async, this.user, this.password);
+
+      for (header in this.headers) {
+        if (this.headers.hasOwnProperty(header)) {
+          xhr.setRequestHeader(header, this.headers[header]);
+        }
+      }
+
+      xhr.onreadystatechange = function onReadyStateChange() {
+        var data;
+        if (xhr.readyState === 4) {
+          data = xhr.responseText;
+          this.waiting = false;
+          callback(data, xhr);
+        }
+      }.bind(this);
+
+      this.waiting = true;
+      xhr.send(this._seralize());
+    }
+  };
+
+  module.exports = Xhr;
+
+}.apply(
+  this,
+  (this.CalDav) ?
+    [CalDav('xhr'), CalDav] :
+    [module, require('./webcals')]
+));