Improve selecting default contact and adds some NPE checks.

src/net/java/sip/communicator/impl/gui/main/chat/ChatWindowManager.java

@@ -1111,6 +1111,15 @@ private Contact getDefaultContact(MetaContact metaContact)
         Contact defaultContact = metaContact.getDefaultContact(
                         OperationSetBasicInstantMessaging.class);
 
+        if(defaultContact == null)
+        {
+            defaultContact = metaContact.getDefaultContact(
+                OperationSetSmsMessaging.class);
+
+            if(defaultContact == null)
+                return null;
+        }
+
         ProtocolProviderService defaultProvider
             = defaultContact.getProtocolProvider();
 
@@ -1170,6 +1179,9 @@ private ChatPanel createChat(   MetaContact metaContact,
         if (protocolContact == null)
             protocolContact = getDefaultContact(metaContact);
 
+        if(protocolContact == null)
+            return null;
+
         ChatContainer chatContainer = getChatContainer();
         ChatPanel chatPanel = new ChatPanel(chatContainer);
 
@@ -1456,6 +1468,9 @@ public void run()
         {
             ChatPanel chatPanel = getContactChat(metaContact, protocolContact);
 
+            if(chatPanel == null)
+                return;
+
             // if not explicitly set, do not set it, leave it to default or
             // internally make the decision
             if(isSmsSelected != null)

src/net/java/sip/communicator/impl/gui/main/chat/ChatWritePanel.java

@@ -10,6 +10,7 @@
 import java.awt.event.*;
 import java.io.*;
 import java.util.*;
+import java.util.List;
 
 import javax.swing.*;
 import javax.swing.Timer;
@@ -24,6 +25,8 @@
 import net.java.sip.communicator.impl.gui.main.chat.menus.*;
 import net.java.sip.communicator.impl.gui.utils.*;
 import net.java.sip.communicator.plugin.desktoputil.*;
+import net.java.sip.communicator.service.contactlist.*;
+import net.java.sip.communicator.service.contactsource.*;
 import net.java.sip.communicator.service.gui.*;
 import net.java.sip.communicator.service.gui.event.*;
 import net.java.sip.communicator.service.protocol.*;
@@ -282,6 +285,31 @@ private void initSmsLabel(final JPanel centerPanel)
             @Override
             public void actionPerformed(ActionEvent e)
             {
+                if(smsMode)
+                {
+                    // check are we allowed to change back to im mode
+                    Object descr = chatPanel.getChatSession().getDescriptor();
+
+                    if(descr instanceof MetaContact)
+                    {
+                        List<Contact> imContact
+                            = ((MetaContact)descr).getContactsForOperationSet(
+                            OperationSetBasicInstantMessaging.class);
+
+                        if(imContact == null || imContact.size() == 0)
+                            return;
+                    }
+                    else if(descr instanceof SourceContact)
+                    {
+                        List<ContactDetail> imContact
+                            = ((SourceContact)descr).getContactDetails(
+                            OperationSetBasicInstantMessaging.class);
+
+                        if(imContact == null || imContact.size() == 0)
+                            return;
+                    }
+                }
+
                 smsMode = smsButton.isSelected();
 
                 Color bgColor;

src/net/java/sip/communicator/impl/gui/main/contactlist/ContactListPane.java

@@ -167,7 +167,13 @@ public void contactClicked(ContactListEvent evt)
 
             // do nothing
             if(defaultContact == null)
-                return;
+            {
+                defaultContact = metaContact.getDefaultContact(
+                    OperationSetSmsMessaging.class);
+
+                if(defaultContact == null)
+                    return;
+            }
 
             ProtocolProviderService defaultProvider
                 = defaultContact.getProtocolProvider();
@@ -262,6 +268,17 @@ else if(mucDetails != null && mucDetails.size() > 0)
                 if(room != null)
                     GuiActivator.getMUCService().openChatRoom(room);
             }
+            else
+            {
+                List<ContactDetail> smsDetails = contact.getContactDetails(
+                    OperationSetSmsMessaging.class);
+
+                if(smsDetails != null && smsDetails.size() > 0)
+                {
+                    GuiActivator.getUIService().getChatWindowManager()
+                        .startChat(contact.getContactAddress(), true);
+                }
+            }
         }
     }
 

src/net/java/sip/communicator/impl/gui/main/contactlist/TreeContactList.java

@@ -1903,6 +1903,17 @@ else if(mucDetails != null && mucDetails.size() > 0)
                     if(room != null)
                         GuiActivator.getMUCService().openChatRoom(room);
                 }
+                else
+                {
+                    List<ContactDetail> smsDetails = contact.getContactDetails(
+                        OperationSetSmsMessaging.class);
+
+                    if(smsDetails != null && smsDetails.size() > 0)
+                    {
+                        GuiActivator.getUIService().getChatWindowManager()
+                            .startChat(contact.getContactAddress(), true);
+                    }
+                }
             }
         }
     }

src/net/java/sip/communicator/impl/msghistory/MessageSourceContact.java

@@ -110,15 +110,20 @@ public ProtocolProviderService getProtocolProviderService()
     {
         update(source);
 
-        if(source instanceof MessageDeliveredEvent
-            || source instanceof MessageReceivedEvent)
+        if(source instanceof MessageDeliveredEvent)
+        {
+            initDetails(false,
+                ((MessageDeliveredEvent)source).getDestinationContact());
+        }
+        else if(source instanceof MessageReceivedEvent)
         {
-            initDetails(false);
+            initDetails(false,
+                ((MessageReceivedEvent)source).getSourceContact());
         }
         else if(source instanceof ChatRoomMessageDeliveredEvent
                 || source instanceof ChatRoomMessageReceivedEvent)
         {
-            initDetails(true);
+            initDetails(true, null);
         }
 
         this.service = service;
@@ -277,7 +282,7 @@ public String toString()
      * Will skip OperationSetBasicInstantMessaging for chat rooms.
      * @param isChatRoom is current source contact a chat room.
      */
-    private void initDetails(boolean isChatRoom)
+    private void initDetails(boolean isChatRoom, Contact contact)
     {
         ContactDetail contactDetail =
             new ContactDetail(
@@ -290,6 +295,13 @@ private void initDetails(boolean isChatRoom)
         ProtocolProviderService preferredProvider
             = this.ppService;
 
+        OperationSetContactCapabilities capOpSet
+            = preferredProvider
+                .getOperationSet(OperationSetContactCapabilities.class);
+        Map<String, OperationSet> opsetCapabilities = null;
+        if(capOpSet != null)
+            opsetCapabilities = capOpSet.getSupportedOperationSets(contact);
+
         if (preferredProvider != null)
         {
             preferredProviders
@@ -312,6 +324,11 @@ private void initDetails(boolean isChatRoom)
                     continue;
                 }
 
+                if(!isChatRoom
+                    && opsetCapabilities != null
+                    && !opsetCapabilities.containsKey(opset.getName()))
+                    continue;
+
                 preferredProviders.put(opset, preferredProvider);
 
                 supportedOpSets.add(opset);