Snapshot

feed.js

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+//
+// Atom to HTML - fetch a feed, inject it as dl/dt/dd
+//
+
+// Copyright (C) 2009-2010 Joshua Bell
+//
+// 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.
+
+function atomToHtml(uri, element) {
+
+  var READYSTATE_UNINITIALIZED = 0;
+  var READYSTATE_LOADING = 1;
+  var READYSTATE_LOADED = 2;
+  var READYSTATE_INTERACTIVE = 3;
+  var READYSTATE_COMPLETE = 4;
+
+  var xhr = new XMLHttpRequest();
+  var async = true;
+  xhr.open("GET", uri, async);
+  xhr.onreadystatechange = function() {
+    if (xhr.readyState === READYSTATE_COMPLETE) {
+      if ((xhr.status === 200 || xhr.status === 0) && xhr.responseXML) {
+        var doc = xhr.responseXML;
+        var entries = doc.getElementsByTagName('entry');
+        var html = [];
+
+        html.push('<dl>');
+
+        for (var i = 0; i < entries.length; i += 1) {
+          var entry = entries[i];
+          try {
+            var entryHTML = [];
+            entryHTML.push('<dt>', entry.getElementsByTagName('title')[0].childNodes[0].nodeValue);
+            entryHTML.push('<dd>', entry.getElementsByTagName('content')[0].childNodes[0].nodeValue);
+            html.push(entryHTML.join(''));
+          } catch (e) {
+            if (console && console.log) { console.log("Error:", e); }
+          }
+        }
+
+        html.push('</dl>');
+
+        element.innerHTML = html.join('');
+      } else {
+        element.innerHTML = '<em>Unable to load feed</em>';
+      }
+    }
+  };
+
+  try {
+    xhr.send(null);
+  } catch (e) {
+    element.innerHTML = '<em>Unable to load feed</em>';
+  }
+}
+