/// <summary>
/// the function returns a list of messages, by specific sort, filter and order
/// </summary>
/// <param name="order">The wanted order of the list</param>
/// <param name="sortAction">Sort</param>
/// <param name="filterInfo">filter information</param>
/// <returns>filtered and sorted messages list</returns>
public List <GuiMessage> getMessages(int order, PresentationLayer.Action sortAction, string[] filterInfo)
{
bool update = false, filterChanged = false;
// check if the sort or filter had changed, if they did, we update the current sort/filter
if (sort != sortAction)
{
sort = sortAction;
}
// check if the filter was change
for (int i = 0; i < filter.Length & !filterChanged; i++)
{
if (!filter[i].Equals(filterInfo[i]))
{
filterChanged = true;
}
}
// the list filterInfo contains - [0] - filter name, [1]- group id, [2]- nickname
if (filterChanged)
{
update = true;
if (filterInfo[0].Equals("NONE"))
{
allMessages.filterByNone();
}
else if (filterInfo[0].Equals("ByGroup"))
{
allMessages.FilterByGroup(filterInfo[1]);
}
else if (filterInfo[0].Equals("ByUser"))
{
allMessages.FilterByUser(filterInfo[2], filterInfo[1]);
}
this.filter = filterInfo;
}
// if the filter/sort is changed, update the list of the presentation messages
if (update)
{
updatePresMessages();
}
retrieveMessages();
if (sort != null)
{
// ascending sort - defult sort
sort.action(presMsgs);
// if descending sort
if (order == 1)
{
presMsgs.Reverse();
}
}
return(presMsgs);
}
// constractors
public ChatRoom(string url)
{
this.url = url;
this.currUser = null;
presMsgs = new List <GuiMessage>();
sort = new SortByTime();
filter = new string[3];
filter[0] = "NONE";
filter[1] = "";
filter[2] = "";
// initialize the messages handler with a default filter - NONE
HandlerFactory handler = new HandlerFactory();
allMessages = handler.createMessageHandler();
allUsers = handler.createUserHandler();
allMessages.filterByNone();
updatePresMessages();
}
