/// <summary>
/// Constructs a collection of Flickr photographs. The collection is a result
/// of the passed in method, and numPerPage represents how many should be
/// fetched at a time.
/// </summary>
/// <param name="numPerPage"></param>
internal FlickrPhotos(FlickrMethod photoQuery, int numPerPage)
{
_photoQueryMethod = photoQuery;
_photoListCache = new Dictionary<int, List<FlickrPhoto>>();
_numPerPage = numPerPage;
_count = Int32.MaxValue;
_user = null;
}
public void AuthenticateUser(object sender, EventArgs e)
{
AuthenticationGrid.Visibility = Visibility.Hidden;
Flickr.AsynchGetAuthenticatedUser(frob,
Dispatcher,
delegate(object o)
{
user = (AuthorizedFlickrUser)o;
AuthenticationGrid.Visibility = Visibility.Hidden;
confirmAuthentButton.IsEnabled = false;
authenticateButton.Visibility = Visibility.Hidden;
logInLabel.Visibility = Visibility.Visible;
Flickr.AsynchGetRecentlyUpdated(user,
cv.Dispatcher,
delegate(object photos)
{
cv.Data = (FlickrPhotos)photos;
});
});
}
internal FlickrPhotos(FlickrMethod method, int numPerPage, AuthorizedFlickrUser user)
: this(method, numPerPage)
{
_user = user;
}
/// <summary>
/// Parses the given autohrization info in to an AuthorizedFlickrUser
/// </summary>
/// <param name="xmlNodeList"></param>
/// <returns></returns>
private static AuthorizedFlickrUser ParseAuthorizationInfo(XmlNodeList xmlNodeList)
{
AuthorizedFlickrUser afu = new AuthorizedFlickrUser();
foreach (XmlNode outputArg in xmlNodeList)
{
if (outputArg.Name == "token")
{
afu.Token = outputArg.InnerText;
}
else if (outputArg.Name == "perms")
{
afu.Permissions = outputArg.InnerText;
}
else if (outputArg.Name == "user")
{
for (int i = 0; i < outputArg.Attributes.Count; i++)
{
if (outputArg.Attributes[i].Name == "nsid")
{
afu.NSID = outputArg.Attributes[i].InnerText;
}
else if (outputArg.Attributes[i].Name == "username")
{
afu.Username = outputArg.Attributes[i].InnerText;
}
else if (outputArg.Attributes[i].Name == "fullname")
{
afu.Fullname = outputArg.Attributes[i].InnerText;
}
}
}
}
if (afu.Token == "") return null;
else return afu;
}
/// <summary>
/// Gets the authorization info a logged in user
/// </summary>
/// <param name="frob"></param>
/// <returns></returns>
private static AuthorizedFlickrUser GetAuthorizationInfo(string frob)
{
AuthorizedFlickrUser flickrUser = null;
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.auth.getToken");
method.AddParameter("frob", frob);
XmlNode rspNode = null;
if (method.MakeSignedRequest(SharedSecret, out rspNode))
{
foreach (XmlNode outputArg in rspNode.ChildNodes)
{
if (outputArg.Name == "auth")
{
flickrUser = ParseAuthorizationInfo(outputArg.ChildNodes);
}
}
}
authorizedUser = flickrUser;
return flickrUser;
}
/// <summary>
/// Posts the given comments about the given photo.
/// </summary>
/// <param name="comments"></param>
/// <param name="photo"></param>
/// <param name="user"></param>
/// <returns></returns>
public static bool PostComments(string comments, FlickrPhoto photo, AuthorizedFlickrUser user)
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.photos.comments.addComment",
user.Token, SharedSecret);
method.AddParameter("comment_text", comments);
method.AddParameter("photo_id", photo.ID);
XmlNode rspNode = null;
return method.MakeRequest(out rspNode);
}
/// <summary>
/// Gets the list of a users most recently updated photos
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
public static FlickrPhotos GetRecentlyUpdated(AuthorizedFlickrUser user)
{
FlickrMethod method = new FlickrMethod(ApiKey,
"flickr.photos.recentlyUpdated",
user.Token,
SharedSecret);
int updateTime = 1;
method.AddParameter("min_date", updateTime.ToString());
FlickrPhotos photos = new FlickrPhotos(method, 50, user);
photos.GetPhoto(0); // we call this to force the call to get the total # count
return photos;
}
/// <summary>
/// Asynchrnousy posts comments about the given photo.
/// </summary>
/// <param name="comments"></param>
/// <param name="photo"></param>
/// <param name="user"></param>
/// <param name="notificationDispatcher"></param>
/// <param name="notificationEvent"></param>
public static void AsynchPostComments(string comments,
FlickrPhoto photo,
AuthorizedFlickrUser user,
Dispatcher notificationDispatcher,
FlickrWorkCompleteDelegate notificationEvent)
{
AddToWorkQueue(delegate()
{
bool result = PostComments(comments, photo, user);
if (notificationDispatcher != null && notificationEvent != null)
{
notificationDispatcher.BeginInvoke(DispatcherPriority.SystemIdle,
notificationEvent,
result);
}
}
);
}
/// <summary>
/// Asynchronously gets the most recently updated photos for a given user
/// </summary>
/// <param name="user"></param>
/// <param name="notificationDispatcher"></param>
/// <param name="notificationEvent"></param>
public static void AsynchGetRecentlyUpdated(AuthorizedFlickrUser user,
Dispatcher notificationDispatcher,
FlickrWorkCompleteDelegate notificationEvent)
{
{
AddToWorkQueue(delegate()
{
FlickrPhotos photos = GetRecentlyUpdated(user);
if (notificationDispatcher != null && notificationEvent != null)
{
notificationDispatcher.BeginInvoke(DispatcherPriority.SystemIdle,
notificationEvent,
photos);
}
}
);
}
}
