Receive lists and changes in room participants from protocols

Two new messages were added to the protocol API to do this:
M_ROOM_PARTICIPANTS, which can be used when someone joins a room, or
on joining a room to send a full list of users, and IM_ROOM_PARTICIPANT_LEFT,
for when a user has left the room/disconnected.

IM_SET_STATUS no longer assumes received data comes from contacts, but
any general user.

UserItem was made to reflect changes in the User's name.

Chat messages can now be reliably received in a given room. :)

application/CayaProtocolMessages.h

@@ -89,6 +89,12 @@ enum im_what_code {
 	//! Confirm the room's been joined
 	IM_ROOM_JOINED						= 33,
 
+	//! Returning a (not necessarily complete) list of room users
+	IM_ROOM_PARTICIPANTS				= 34,
+
+	//! A user left the room
+	IM_ROOM_PARTICIPANT_LEFT				= 35,
+
 
 	/*
 	 * Messages related to contact changes.

application/Conversation.cpp

@@ -153,10 +153,19 @@ Conversation::AddUser(User* user)
 {
 	BMessage msg;
 	msg.AddString("user_id", user->GetId());
+	msg.AddString("user_name", user->GetName());
 	_EnsureUser(&msg);
 }
 
 
+void
+Conversation::RemoveUser(User* user)
+{
+	fUsers.RemoveItemFor(user->GetId());
+	GetView()->UpdateUserList(fUsers);
+}
+
+
 void
 Conversation::ShowView(bool typing, bool userAction)
 {

application/Conversation.h

@@ -53,7 +53,9 @@ public:
 
 	UserMap				Users();
 	User*				UserById(BString id);
+
 	void				AddUser(User* user);
+	void				RemoveUser(User* user);
 
 private:
 	void				_LogChatMessage(BMessage* msg);

application/MainWindow.cpp

@@ -214,11 +214,8 @@ MainWindow::ImMessage(BMessage* msg)
 			}
 			break;
 		}
+		case IM_ROOM_PARTICIPANTS:
 		case IM_MESSAGE_RECEIVED:
-		{
-			_EnsureConversationItem(msg);
-			break;
-		}
 		case IM_MESSAGE_SENT:
 		case IM_CHAT_CREATED:
 		{
@@ -230,6 +227,7 @@ MainWindow::ImMessage(BMessage* msg)
 		case IM_EXTENDED_CONTACT_INFO:
 		case IM_STATUS_SET:
 		{
+			if (fServer->ContactById(msg->FindString("user_id")) != NULL)
 				if (fRosterWindow != NULL)
 					fRosterWindow->PostMessage(msg);
 			break;

application/Server.cpp

@@ -16,6 +16,7 @@
 #include <Entry.h>
 #include <Notification.h>
 #include <Path.h>
+#include <StringList.h>
 #include <TranslationUtils.h>
 
 #include "Account.h"
@@ -154,14 +155,14 @@ Server::ImMessage(BMessage* msg)
 			if (msg->FindInt32("status", &status) != B_OK)
 				return B_SKIP_MESSAGE;
 
-			Contact* contact = _EnsureContact(msg);
-			if (!contact)
+			User* user = _EnsureUser(msg);
+			if (!user)
 				break;
 
-			contact->SetNotifyStatus((CayaStatus)status);
+			user->SetNotifyStatus((CayaStatus)status);
 			BString statusMsg;
 			if (msg->FindString("message", &statusMsg) == B_OK) {
-				contact->SetNotifyPersonalStatus(statusMsg);
+				user->SetNotifyPersonalStatus(statusMsg);
 //				contact->GetView()->UpdatePersonalMessage();
 			}
 			break;
@@ -254,6 +255,38 @@ Server::ImMessage(BMessage* msg)
 		{
 			break;
 		}
+		case IM_ROOM_PARTICIPANTS:
+		{
+			Conversation* chat = _EnsureConversation(msg);
+			BStringList ids;
+			BStringList name;
+
+			msg->FindStrings("user_name", &name);
+			if (msg->FindStrings("user_id", &ids) != B_OK)
+				break;
+
+			ProtocolLooper* protoLooper = _LooperFromMessage(msg);
+
+			for (int i = 0; i < ids.CountStrings(); i++) {
+				User* user = _EnsureUser(ids.StringAt(i), protoLooper);
+
+				if (name.CountStrings() >= i) {
+					user->SetNotifyName(name.StringAt(i));
+				}
+				chat->AddUser(user);
+			}
+			break;
+		}
+		case IM_ROOM_PARTICIPANT_LEFT:
+		{
+			Conversation* chat = _EnsureConversation(msg);
+			User* user = _EnsureUser(msg);
+
+			if (user == NULL || chat == NULL)
+				break;
+			chat->RemoveUser(user);
+			break;
+		}
 		case IM_SEND_MESSAGE:
 		{
 			// Route this message through the appropriate ProtocolLooper
@@ -541,11 +574,18 @@ User*
 Server::_EnsureUser(BMessage* message)
 {
 	BString id = message->FindString("user_id");
+	return _EnsureUser(id, _LooperFromMessage(message));
+}
+
+
+User*
+Server::_EnsureUser(BString id, ProtocolLooper* protoLooper)
+{
 	User* user = UserById(id);
 
 	if (user == NULL && id.IsEmpty() == false) {
 		user = new User(id, Looper());
-		user->SetProtocolLooper(_LooperFromMessage(message));
+		user->SetProtocolLooper(protoLooper);
 		AddUser(user);
 	}
 

application/Server.h

@@ -68,6 +68,7 @@ private:
 
 			Contact*		_EnsureContact(BMessage* message);
 			User*			_EnsureUser(BMessage* message);
+			User*			_EnsureUser(BString id, ProtocolLooper* protoLooper);
 			Conversation*	_EnsureConversation(BMessage* message);
 
 			void			_ReplicantStatusNotify(CayaStatus status);

application/User.cpp

@@ -142,8 +142,10 @@ User::ProtocolBitmap() const
 UserItem*
 User::GetListItem()
 {
-	if (fListItem == NULL)
+	if (fListItem == NULL) {
 		fListItem = new UserItem(fName, this);
+		RegisterObserver(fListItem);
+	}
 	return fListItem;
 }
 

application/views/UserItem.cpp

@@ -5,6 +5,7 @@
 
 #include "UserItem.h"
 
+#include "NotifyMessage.h"
 #include "User.h"
 
 
@@ -26,18 +27,11 @@ UserItem::GetUser()
 void 
 UserItem::ObserveString(int32 what, BString str)
 {
-}
-
-
-void 
-UserItem::ObservePointer(int32 what, void* ptr)
-{
-}
-
-
-void 
-UserItem::ObserveInteger(int32 what, int32 val)
-{
+	switch (what) {
+		case STR_CONTACT_NAME:
+			SetText(str);
+			break;
+	}
 }
 
 

application/views/UserItem.h

@@ -20,8 +20,6 @@ public:
 
 protected:
 	void ObserveString(int32 what, BString str);
-	void ObservePointer(int32 what, void* ptr);
-	void ObserveInteger(int32 what, int32 val);
 
 private:
 	User* fUser;