Allow leaving/getting booted from rooms

Now the user can leave or be forced to leave a chat.
For this, two protocol API messages were added: IM_LEAVE_ROOM, and IM_ROOM_LEFT.

Aside from that, IM_ROOM_BAN_PARTICIPANT and IM_ROOM_KICK_PARTICIPANT
were added, though they aren't used yet.

application/CayaProtocolMessages.h

@@ -191,14 +191,20 @@ enum im_what_code {
 	//! Confirm the room's been joined
 	IM_ROOM_JOINED						= 153,
 
+	//! User left the room
+	IM_LEAVE_ROOM						= 154,
+
+	//! User left the room
+	IM_ROOM_LEFT						= 155,
+
 	//! Quietly add a user(s) to the chat
-	IM_ROOM_PARTICIPANTS				= 154,
+	IM_ROOM_PARTICIPANTS				= 156,
 
 	//! User has newly and explicitly joined
-	IM_ROOM_PARTICIPANT_JOINED			= 155,
+	IM_ROOM_PARTICIPANT_JOINED			= 157,
 
 	//! A user left the room
-	IM_ROOM_PARTICIPANT_LEFT			= 156,
+	IM_ROOM_PARTICIPANT_LEFT			= 158,
 
 
 	/*
@@ -212,6 +218,17 @@ enum im_what_code {
 	IM_ROOM_SUBJECT						= 161,
 
 
+	/*
+	 * Room moderation
+	 */
+
+	//! Ban user
+	IM_ROOM_BAN_PARTICIPANT				= 170,
+
+	//! Kick user
+	IM_ROOM_KICK_PARTICIPANT			= 171,
+
+
 	/*
 	 * Special messages
 	 */

application/MainWindow.cpp

@@ -176,7 +176,6 @@ MainWindow::MessageReceived(BMessage* message)
 			message->AddString("body", fSendView->Text());
 			fChatView->MessageReceived(message);
 			fSendView->SetText("");
-
 			break;
 		}
 
@@ -214,6 +213,7 @@ MainWindow::ImMessage(BMessage* msg)
 			}
 			break;
 		}
+		case IM_ROOM_JOINED:
 		case IM_ROOM_PARTICIPANTS:
 		case IM_MESSAGE_RECEIVED:
 		case IM_MESSAGE_SENT:
@@ -222,6 +222,16 @@ MainWindow::ImMessage(BMessage* msg)
 			_EnsureConversationItem(msg);
 			break;
 		}
+		case IM_ROOM_LEFT:
+		{
+			ConversationItem* item = _EnsureConversationItem(msg);
+			if (item == NULL)
+				break;
+
+			_RemoveListItem(item);
+			item->GetConversation()->GetView()->MessageReceived(msg);
+			break;
+		}
 		case IM_AVATAR_SET:
 		case IM_CONTACT_INFO:
 		case IM_EXTENDED_CONTACT_INFO:
@@ -422,3 +432,22 @@ MainWindow::_UpdateListItem(ConversationItem* item)
 }
 
 
+void
+MainWindow::_RemoveListItem(ConversationItem* item)
+{
+	int32 index = fListView->IndexOf(item);
+	if (index > 0)
+		index--;
+
+	fListView->RemoveItem(item);
+	fServer->RemoveConversation(item->GetConversation());
+
+	if (fListView->CountItems() == 0) {
+		fChatView = new ConversationView();
+		SetConversation(NULL);
+	}
+	else
+		fListView->Select(index);
+}
+
+

application/MainWindow.h

@@ -48,8 +48,11 @@ private:
 			void		_InitInterface();
 			BMenuBar*	_CreateMenuBar();
 
-			ConversationItem* _EnsureConversationItem(BMessage* msg);
+			ConversationItem*
+						_EnsureConversationItem(BMessage* msg);
 			void		_UpdateListItem(ConversationItem* item);	
+			void		_RemoveListItem(ConversationItem* item);
+
 
 	Server*				fServer;
 	RosterWindow*		fRosterWindow;

application/Server.cpp

@@ -251,6 +251,7 @@ Server::ImMessage(BMessage* msg)
 		}
 		case IM_ROOM_JOINED:
 		{
+			_EnsureConversation(msg);
 			break;
 		}
 		case IM_ROOM_PARTICIPANTS:
@@ -535,6 +536,13 @@ Server::AddConversation(Conversation* chat)
 }
 
 
+void
+Server::RemoveConversation(Conversation* chat)
+{
+	fChatMap.RemoveItemFor(chat->GetId());
+}
+
+
 BString
 Server::GetOwnContact()
 {

application/Server.h

@@ -59,6 +59,7 @@ public:
 			ChatMap			Conversations() const;
 			Conversation*	ConversationById(BString id);
 			void			AddConversation(Conversation* chat);
+			void			RemoveConversation(Conversation* chat);
 
 			// TODO: there should be a contact for each account.
 			BString			GetOwnContact();

application/views/ConversationListView.cpp

@@ -10,8 +10,10 @@
 #include <Window.h>
 
 #include "CayaMessages.h"
+#include "CayaProtocolMessages.h"
 #include "Conversation.h"
 #include "ConversationItem.h"
+#include "ProtocolLooper.h"
 
 
 const uint32 kOpenSelectedChat = 'CVos';
@@ -38,6 +40,21 @@ ConversationListView::MessageReceived(BMessage* msg)
 			break;
 		}
 
+		case kLeaveSelectedChat:
+		{
+			ConversationItem* item;
+			int32 selIndex = CurrentSelection();
+
+			if ((item = (ConversationItem*)ItemAt(selIndex)) == NULL)
+				break;
+
+			BMessage leave(IM_MESSAGE);
+			leave.AddInt32("im_what", IM_LEAVE_ROOM);
+			leave.AddString("chat_id", item->GetConversation()->GetId());
+			item->GetConversation()->GetProtocolLooper()->MessageReceived(&leave);
+			break;
+		}
+
 		default:
 			BListView::MessageReceived(msg);
 	}

application/views/ConversationView.cpp

@@ -100,6 +100,12 @@ ConversationView::ImMessage(BMessage* msg)
 	int32 im_what = msg->FindInt32("im_what");
 
 	switch (im_what) {
+		case IM_ROOM_LEFT:
+		{
+			delete fConversation;
+			delete this;
+			break;
+		}
 		case IM_MESSAGE_RECEIVED:
 		{
 			BString message = msg->FindString("body");