OpenSocial: OAuth2 Gadget sample

oauth2_sample.xml

<?xml version="1.0" encoding="UTF-8" ?>
<Module>
  <ModulePrefs title="OpenSocialGadget OAuth2 sample">
    <OAuth2>
      <Service name="[service_name]">
	  	<Authorization url="https://.../authorize"/>
	    <Token url="https://.../oauth2/token"/>
      </Service>
    </OAuth2>
    <Require feature="oauthpopup" />
  </ModulePrefs>
  <Content type="html">
    <![CDATA[

    <div id="approval" style="display: none">
      <a href="#" id="personalize">Personalize this gadget</a>
    </div>

    <div id="waiting" style="display: none">
      Please click
      <a href="#" id="approvaldone">I've approved access</a>
      once you've approved access to your data.
    </div>

	<div id="main" class="main" style="display: none"></div>

    <script type="text/javascript">
			function showOneSection(toshow) {
				var sections = [ 'main', 'approval', 'waiting' ];
				for (var i=0; i < sections.length; ++i) {
					var s = sections[i];
					var el = _gel(s);
					if (s === toshow) {
						el.style.display = "block";
					} else {
						el.style.display = "none";
					}
				}
			}

			function loadContents(){
				var url = "http://www...";
				var params = {};
				params[gadgets.io.RequestParameters.CONTENT_TYPE] = gadgets.io.ContentType.JSON;
				params[gadgets.io.RequestParameters.AUTHORIZATION] = gadgets.io.AuthorizationType.OAUTH2;
				params[gadgets.io.RequestParameters.METHOD] = gadgets.io.MethodType.GET;
				params[gadgets.io.RequestParameters.OAUTH_SERVICE_NAME] = "[service_name]";

				var callback = function (response) {
				if (response.oauthApprovalUrl) {
					var onOpen = function() {
						showOneSection('waiting');
					};
					var onClose = function() {
						buildContainer();
					};
					var popup = new gadgets.oauth.Popup(response.oauthApprovalUrl, null, onOpen, onClose);
					_gel('personalize').onclick = popup.createOpenerOnClick();
					_gel('approvaldone').onclick = popup.createApprovedOnClick();
					showOneSection('approval');
					} else if (response.data) {
						showOneSection('main');
						// TODO:display contents
					}
				};
				
				gadgets.io.makeRequest(url, callback, params);
			}

			gadgets.util.registerOnLoadHandler(loadContents);
			</script>

        ]]>
  </Content>
</Module>