npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

bower_components/core-ajax/core-ajax.html

Index: bower_components/core-ajax/core-ajax.html
diff --git a/bower_components/core-ajax/core-ajax.html b/bower_components/core-ajax/core-ajax.html
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-<!--
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
--->
-
-<!--
-@group Polymer Core Elements
-
-The `core-ajax` element exposes `XMLHttpRequest` functionality.
-
-    <core-ajax
-        auto
-        url="http://gdata.youtube.com/feeds/api/videos/"
-        params='{"alt":"json", "q":"chrome"}'
-        handleAs="json"
-        on-core-response="{{handleResponse}}"></core-ajax>
-
-With `auto` set to `true`, the element performs a request whenever
-its `url` or `params` properties are changed.
-
-Note: The `params` attribute must be double quoted JSON.
-
-You can trigger a request explicitly by calling `go` on the
-element.
-
-@element core-ajax
-@status beta
-@homepage github.io
--->
-<link rel="import" href="core-xhr.html">
-<polymer-element name="core-ajax" hidden attributes="url handleAs auto params response error method headers body contentType withCredentials">
-<script>
-
-  Polymer('core-ajax', {
-    /**
-     * Fired when a response is received.
-     *
-     * @event core-response
-     */
-
-    /**
-     * Fired when an error is received.
-     *
-     * @event core-error
-     */
-
-    /**
-     * Fired whenever a response or an error is received.
-     *
-     * @event core-complete
-     */
-
-    /**
-     * The URL target of the request.
-     *
-     * @attribute url
-     * @type string
-     * @default ''
-     */
-    url: '',
-
-    /**
-     * Specifies what data to store in the `response` property, and
-     * to deliver as `event.response` in `response` events.
-     *
-     * One of:
-     *
-     *    `text`: uses `XHR.responseText`.
-     *
-     *    `xml`: uses `XHR.responseXML`.
-     *
-     *    `json`: uses `XHR.responseText` parsed as JSON.
-     *
-     *    `arraybuffer`: uses `XHR.response`.
-     *
-     *    `blob`: uses `XHR.response`.
-     *
-     *    `document`: uses `XHR.response`.
-     *
-     * @attribute handleAs
-     * @type string
-     * @default 'text'
-     */
-    handleAs: '',
-
-    /**
-     * If true, automatically performs an Ajax request when either `url` or `params` changes.
-     *
-     * @attribute auto
-     * @type boolean
-     * @default false
-     */
-    auto: false,
-
-    /**
-     * Parameters to send to the specified URL, as JSON.
-     *
-     * @attribute params
-     * @type string (JSON)
-     * @default ''
-     */
-    params: '',
-
-    /**
-     * The response for the most recently made request, or null if it hasn't
-     * completed yet or the request resulted in error.
-     *
-     * @attribute response
-     * @type Object
-     * @default null
-     */
-    response: null,
-
-    /**
-     * The error for the most recently made request, or null if it hasn't
-     * completed yet or the request resulted in success.
-     *
-     * @attribute error
-     * @type Object
-     * @default null
-     */
-    error: null,
-
-    /**
-     * The HTTP method to use such as 'GET', 'POST', 'PUT', or 'DELETE'.
-     * Default is 'GET'.
-     *
-     * @attribute method
-     * @type string
-     * @default ''
-     */
-    method: '',
-
-    /**
-     * HTTP request headers to send.
-     *
-     * Example:
-     *
-     *     <core-ajax
-     *         auto
-     *         url="http://somesite.com"
-     *         headers='{"X-Requested-With": "XMLHttpRequest"}'
-     *         handleAs="json"
-     *         on-core-response="{{handleResponse}}"></core-ajax>
-     *
-     * @attribute headers
-     * @type Object
-     * @default null
-     */
-    headers: null,
-
-    /**
-     * Optional raw body content to send when method === "POST".
-     *
-     * Example:
-     *
-     *     <core-ajax method="POST" auto url="http://somesite.com"
-     *         body='{"foo":1, "bar":2}'>
-     *     </core-ajax>
-     *
-     * @attribute body
-     * @type Object
-     * @default null
-     */
-    body: null,
-
-    /**
-     * Content type to use when sending data.
-     *
-     * @attribute contentType
-     * @type string
-     * @default 'application/x-www-form-urlencoded'
-     */
-    contentType: 'application/x-www-form-urlencoded',
-
-    /**
-     * Set the withCredentials flag on the request.
-     *
-     * @attribute withCredentials
-     * @type boolean
-     * @default false
-     */
-    withCredentials: false,
-
-    /**
-     * Additional properties to send to core-xhr.
-     *
-     * Can be set to an object containing default properties
-     * to send as arguments to the `core-xhr.request()` method
-     * which implements the low-level communication.
-     *
-     * @property xhrArgs
-     * @type Object
-     * @default null
-     */
-    xhrArgs: null,
-
-    ready: function() {
-      this.xhr = document.createElement('core-xhr');
-    },
-
-    receive: function(response, xhr) {
-      if (this.isSuccess(xhr)) {
-        this.processResponse(xhr);
-      } else {
-        this.processError(xhr);
-      }
-      this.complete(xhr);
-    },
-
-    isSuccess: function(xhr) {
-      var status = xhr.status || 0;
-      return !status || (status >= 200 && status < 300);
-    },
-
-    processResponse: function(xhr) {
-      var response = this.evalResponse(xhr);
-      if (xhr === this.activeRequest) {
-        this.response = response;
-      }
-      this.fire('core-response', {response: response, xhr: xhr});
-    },
-
-    processError: function(xhr) {
-      var response = xhr.status + ': ' + xhr.responseText;
-      if (xhr === this.activeRequest) {
-        this.error = response;
-      }
-      this.fire('core-error', {response: response, xhr: xhr});
-    },
-
-    complete: function(xhr) {
-      this.fire('core-complete', {response: xhr.status, xhr: xhr});
-    },
-
-    evalResponse: function(xhr) {
-      return this[(this.handleAs || 'text') + 'Handler'](xhr);
-    },
-
-    xmlHandler: function(xhr) {
-      return xhr.responseXML;
-    },
-
-    textHandler: function(xhr) {
-      return xhr.responseText;
-    },
-
-    jsonHandler: function(xhr) {
-      var r = xhr.responseText;
-      try {
-        return JSON.parse(r);
-      } catch (x) {
-        console.warn('core-ajax caught an exception trying to parse response as JSON:');
-        console.warn('url:', this.url);
-        console.warn(x);
-        return r;
-      }
-    },
-
-    documentHandler: function(xhr) {
-      return xhr.response;
-    },
-
-    blobHandler: function(xhr) {
-      return xhr.response;
-    },
-
-    arraybufferHandler: function(xhr) {
-      return xhr.response;
-    },
-
-    urlChanged: function() {
-      if (!this.handleAs) {
-        var ext = String(this.url).split('.').pop();
-        switch (ext) {
-          case 'json':
-            this.handleAs = 'json';
-            break;
-        }
-      }
-      this.autoGo();
-    },
-
-    paramsChanged: function() {
-      this.autoGo();
-    },
-
-    autoChanged: function() {
-      this.autoGo();
-    },
-
-    // TODO(sorvell): multiple side-effects could call autoGo
-    // during one micro-task, use a job to have only one action
-    // occur
-    autoGo: function() {
-      if (this.auto) {
-        this.goJob = this.job(this.goJob, this.go, 0);
-      }
-    },
-
-    /**
-     * Performs an Ajax request to the specified URL.
-     *
-     * @method go
-     */
-    go: function() {
-      var args = this.xhrArgs || {};
-      // TODO(sjmiles): we may want XHR to default to POST if body is set
-      args.body = this.body || args.body;
-      args.params = this.params || args.params;
-      if (args.params && typeof(args.params) == 'string') {
-        args.params = JSON.parse(args.params);
-      }
-      args.headers = this.headers || args.headers || {};
-      if (args.headers && typeof(args.headers) == 'string') {
-        args.headers = JSON.parse(args.headers);
-      }
-      var hasContentType = Object.keys(args.headers).some(function (header) {
-        return header.toLowerCase() === 'content-type';
-      });
-      if (!hasContentType && this.contentType) {
-        args.headers['Content-Type'] = this.contentType;
-      }
-      if (this.handleAs === 'arraybuffer' || this.handleAs === 'blob' ||
-          this.handleAs === 'document') {
-        args.responseType = this.handleAs;
-      }
-      args.withCredentials = this.withCredentials;
-      args.callback = this.receive.bind(this);
-      args.url = this.url;
-      args.method = this.method;
-
-      this.response = this.error = null;
-      this.activeRequest = args.url && this.xhr.request(args);
-      return this.activeRequest;
-    }
-
-  });
-
-</script>
-</polymer-element>