Reloading of protocol's commands on request

Sometimes a protocol's commands are dynamic, or change based on certain
events― and it's necessary in these cases that commands be reloaded.

The IM_PROTOCOL_RELOAD_COMMANDS message is now added to the API, which
will force Cardie to reload commands from the protocol.

application/ChatProtocolMessages.h

@@ -387,6 +387,17 @@ enum im_what_code {
 	IM_ROOM_UNDEAFEN_PARTICIPANT		= 199,
 
 
+	/*
+	 * Misc. UI messages
+	 */
+
+	/*! Reload commands from proto		→App
+		If a protocol's command-list is dynamic (i.e., determined by its own
+		add-ons and preferences), it makes sense to relaod commands from time
+		to time. This forces that. */
+	IM_PROTOCOL_RELOAD_COMMANDS			= 900,
+
+
 	/*
 	 * Special messages
 	 */

application/ProtocolLooper.cpp

@@ -29,7 +29,7 @@ ProtocolLooper::ProtocolLooper(ChatProtocol* protocol, int64 instance)
 	Account* account = reinterpret_cast<Account*>(
 		protocol->MessengerInterface());
 
-	_InitCommands();
+	LoadCommands();
 
 	BString name(protocol->FriendlySignature());
 	name << " - " << account->Name();
@@ -199,8 +199,9 @@ ProtocolLooper::GetListItem()
 
 
 void
-ProtocolLooper::_InitCommands()
+ProtocolLooper::LoadCommands()
 {
+	fCommands = CommandMap();
 	BObjectList<BMessage> commands = fProtocol->Commands();
 	for (int i = 0; i < commands.CountItems(); i++) {
 		ChatCommand* cmd = new ChatCommand(commands.ItemAt(i));

application/ProtocolLooper.h

@@ -61,9 +61,9 @@ public:
 			ConversationAccountItem*
 							GetListItem();
 
-private:
+			void			LoadCommands();
-			void			_InitCommands();
 
+private:
 			ChatProtocol*	fProtocol;
 			int64			fInstance;
 

application/Server.cpp

@@ -568,12 +568,18 @@ Server::ImMessage(BMessage* msg)
 
 			break;
 		}
+		case IM_PROTOCOL_RELOAD_COMMANDS:
+		{
+			ProtocolLooper* looper = _LooperFromMessage(msg);
+			if (looper == NULL) break;
+			looper->LoadCommands();
+			break;
+		}
 		case IM_PROTOCOL_READY:
 		{
 			// Ready notification
 			ProtocolLooper* looper = _LooperFromMessage(msg);
-			if (looper == NULL)
+			if (looper == NULL) break;
-				break;
 			ChatProtocol* proto = looper->Protocol();
 
 			BString content("%user% has connected!");