/**
* Wrapper function for navigateTo
*/
function goToView(dest) {
	var supported_views = gadgets.views.getSupportedViews();
	
	gadgets.views.requestNavigateTo(supported_views[dest]);
};
  

/**
* When called, this method post an activity to the Updates gadget
*/
function postActivity() {  
    var params = {};  
    params[opensocial.Activity.Field.TITLE] = "I posted something interesting...";
    var activity = opensocial.newActivity(params); 
    opensocial.requestCreateActivity(activity, opensocial.CreateActivityPriority.HIGH, callback);
  };        
  
function callback() {
	alert ("activity posted");
};

/**
* When called, this method calls opensocial apis to get viewer's friendlist
*/
function loadFriends() {
  var req = opensocial.newDataRequest();
  req.add(req.newFetchPersonRequest('VIEWER'), 'viewer');
  req.add(req.newFetchPeopleRequest('VIEWER_FRIENDS'), 'viewerFriends');
  req.send(printFriendsList);
};

/**
* When called, this method pushes the friends list into the gadget UI
*/
function printFriendsList(data) {
  var viewerFriends = data.get('viewerFriends').getData();
  
  html = new Array();
  html.push('<ul>');
  viewerFriends.each(function(person) {
    html.push('<li>' + person.getDisplayName() + "</li>");
  });
  html.push('</ul>');
  document.getElementById('friends').innerHTML = html.join('');
};

/**
* When called, this method initializes the gadget on load
*/
function init() {
  loadFriends();
};