Add polymer 1.0 to npm_modules

polymer_1.0.4/bower_components/google-feeds/google-feeds.html

+<!--
+ Copyright 2015 The Polymer Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style
+ license that can be found in the LICENSE file.
+-->
+<link rel='import' href='../polymer/polymer.html'>
+<link rel='import' href='../google-apis/google-legacy-loader.html'>
+
+<!--
+Exposes [Google Feeds API](https://developers.google.com/feed/)
+
+<b>Example</b>:
+
+    <template is='dom-bind'>
+      <google-feeds feed='http://www.engadget.com/rss-full.xml'
+      results='{{result}}'></google-feeds>
+      <p>Feed title: <span>{{result.title}}</span></p>
+    </template>
+
+@demo
+-->
+<dom-module id='google-feeds'>
+  <template>
+    <div id='content'></div>
+  </template>
+</dom-module>
+<script>
+(function() {
+  Polymer({
+
+    is: 'google-feeds',
+
+    /**
+     * Fired when feed has been loaded
+     * @param {object} feed feed object
+     * @event google-feeds-response
+     */
+    /**
+     * Fired when feed load fails
+     * @param {string} status load status
+     * @event google-feeds-error
+     */
+     /**
+      * Fired when multiple feeds have loaded successfully
+      * @param {object} feeds multiple feeds
+      * @event google-multi-feeds-response
+      */
+     /**
+      * Fired when feed query fails
+      * @param {string} status status
+      * @event google-feeds-queryerror
+      */
+     /**
+      * Fired when feed query succeeds
+      * @param {object} entries query results
+      * @event google-feeds-queryresponse
+      */
+
+    properties: {
+
+      /**
+       * url of the feed to fetch.
+       */
+      feed: {
+        type: String,
+        observer: '_feedChanged'
+      },
+
+      /**
+       * An array of multiple feeds. Feed will load, and report results in `google-feeds-response` event.
+       */
+      feeds: {
+        type: Array,
+        value: function() { return []; },
+        observer: '_feedsChanged'
+      },
+
+      /**
+       * Result of loading a single feed url
+       */
+      results: {
+        type: Object,
+        value: null,
+        notify: true
+      },
+
+      /**
+       * Query for google.feeds.findFeeds(). Query result will be reported through `google-feeds-queryresponse` event
+       */
+      query: {
+        type: String,
+        observer: '_queryChanged'
+      },
+
+      /**
+       * Number of feed items to fetch in fetchFeed
+       */
+      count: {
+        type: Number,
+        value: 32
+      },
+
+      /**
+       * True if feeds API is loading an item
+       */
+      loading: {
+        type: Boolean,
+        notify: true
+      }
+    },
+
+    attached: function() {
+      this.pendingFeeds = [];
+    },
+
+    _feedChanged: function() {
+      if (this.feed) {
+        this.loading = true;
+        // call fetchFeeds async to make sure any binding to count property
+        // is resolved before fetchFeeds is called
+        this._withFeedsApi(this._fetchFeeds.bind(this));
+      } else {
+        this.results = null;
+      }
+    },
+
+    _fetchFeeds: function() {
+      var feed = new google.feeds.Feed(this.feed);
+      feed.includeHistoricalEntries(); // tell the API we want to have old entries too
+      feed.setNumEntries(this.count); // we want this maximum number of entries, if they exist
+      feed.load(this._fetchFeedsDone.bind(this));
+    },
+
+    _fetchFeedsDone: function(results) {
+      this.loading = false;
+      if (results.error) {
+        this.results = {};
+        this.fire('google-feeds-error', {status: results.status});
+      } else {
+        this.results = results.feed;
+        this.fire('google-feeds-response', {feed: results.feed});
+      }
+    },
+
+    _feedsChanged: function() {
+      this._withFeedsApi(function(item) {
+        this._fetchMultipleFeeds(this.feeds, function(results) {
+          // TODO: Figure out why the onLoad callback
+          // isn't getting fired. Below isn't fired.
+          this.fire('google-multi-feeds-response', { feeds: results });
+        });
+      }.bind(this));
+    },
+
+    _fetchMultipleFeeds: function(feeds, onLoad) {
+      var feedControl = new google.feeds.FeedControl();
+      if (feeds) {
+        feeds.forEach(function(item) {
+          feedControl.addFeed(item);
+        });
+        feedControl.setNumEntries(this.count);
+        feedControl.draw(this.$.content);
+        google.setOnLoadCallback(onLoad);
+      }
+    },
+
+    _queryChanged: function() {
+      if (this.query) {
+        this.loading = true;
+        this._withFeedsApi(this._findFeeds.bind(this));
+      }
+    },
+
+    _findFeeds: function() {
+      google.feeds.findFeeds(this.query, this._findFeedsDone.bind(this));
+    },
+
+    _findFeedsDone: function(results) {
+      this.loading = false;
+      if (results.error) {
+        this.fire('google-feeds-queryerror', {status: results.status});
+      } else {
+        this.fire('google-feeds-queryresponse', {entries: results.entries});
+      }
+    },
+
+    // TODO(ffu): integrate the ability to load a specific api like feeds
+    // into google-jsapi.
+    _feedsCallbacks: [],
+
+    _feedsApiLoaded: function() {
+      while (this._feedsCallbacks.length) {
+        var fn = this._feedsCallbacks.shift();
+        fn();
+      }
+    },
+
+    _isApiLoaded: function() {
+      return !!(window.google && google.feeds && google.feeds.Feed);
+    },
+
+    _withFeedsApi: function(callback) {
+      if (this._isApiLoaded() && callback) {
+        callback();
+      } else {
+        if (!this.feedsApiLoading) {
+          var loaded = this._feedsApiLoaded.bind(this);
+          var loader = document.createElement('google-legacy-loader');
+          loader.addEventListener('api-load', function(e) {
+            google.load('feeds', '1', {callback: loaded});
+          });
+          this.feedsApiLoading = true;
+        }
+        if (callback) {
+          this._feedsCallbacks.push(callback);
+        }
+      }
+    }
+
+  });
+})();
+</script>