Update conversation name & window title

Allow updating a conversation's name through IM_ROOM_NAME, and change
the Caya window's title whenever a new chat is selected.

application/Conversation.cpp

@@ -98,6 +98,17 @@ Conversation::ObservePointer(int32 what, void* ptr)
 }
 
 
+void
+Conversation::SetNotifyName(const char* name)
+{
+	if (BString(name) == fName)
+		return;
+
+	fName = name;
+	NotifyString(STR_ROOM_NAME, fName.String());
+}
+
+
 void
 Conversation::SetNotifySubject(const char* subject)
 {

application/Conversation.h

@@ -40,6 +40,7 @@ public:
 	void				ObserveInteger(int32 what, int32 value);
 	void				ObservePointer(int32 what, void* ptr);
 
+	void				SetNotifyName(const char* name);
 	void				SetNotifySubject(const char* subject);
 
 	BMessenger			Messenger() const;

application/MainWindow.cpp

@@ -300,7 +300,13 @@ MainWindow::SetConversation(Conversation* chat)
 	if (chat != NULL) {
 		fChatView = chat->GetView();
 		fConversation = chat;
+
+		BString title(chat->GetName());
+		title << " ― Caya";
+		SetTitle(title.String());
 	}
+	else
+		SetTitle("Caya");
 
 	fRightView->AddChild(fChatView, 9);
 	fRightView->AddChild(fSendScroll, 1);

application/NotifyMessage.h

@@ -8,6 +8,7 @@
 enum {
 	STR_CONTACT_NAME,
 	STR_PERSONAL_STATUS,
+	STR_ROOM_NAME,
 	STR_ROOM_SUBJECT,
 
 	PTR_AVATAR_BITMAP,

application/Server.cpp

@@ -299,6 +299,16 @@ Server::ImMessage(BMessage* msg)
 			chat->SetRole(user_id, role);
 			break;
 		}
+		case IM_ROOM_NAME:
+		{
+			BString name;
+			Conversation* chat = _EnsureConversation(msg);
+			if (msg->FindString("chat_name", &name) != B_OK || chat == NULL)
+				break;
+
+			chat->SetNotifyName(name.String());
+			break;
+		}
 		case IM_ROOM_SUBJECT:
 		{
 			BString subject;

application/views/ConversationItem.cpp

@@ -6,6 +6,7 @@
 #include "ConversationItem.h"
 
 #include "Conversation.h"
+#include "NotifyMessage.h"
 
 
 ConversationItem::ConversationItem(const char* name, Conversation* chat)
@@ -26,18 +27,12 @@ ConversationItem::GetConversation()
 void 
 ConversationItem::ObserveString(int32 what, BString str)
 {
-}
-
-
-void 
-ConversationItem::ObservePointer(int32 what, void* ptr)
-{
-}
-
-
-void 
-ConversationItem::ObserveInteger(int32 what, int32 val)
-{
+	switch (what)
+	{
+		case STR_ROOM_NAME:
+			SetText(str.String());
+			break;
+	}
 }
 
 

application/views/ConversationItem.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:
 	Conversation* fChat;