Core support for accepting multiple invites

Fixes issue 4175

Change-Id: Ie63e84f626a248f85af36185c3a4a72d9f117e74
Reviewed-on: http://gerrit.dmdirc.com/1274
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>

src/com/dmdirc/Invite.java

@@ -98,9 +98,14 @@ public class Invite {
      * Join the channel that belongs to this invite.
      */
     public void accept() {
-        server.join(new ChannelJoinRequest(channel));
-        
+        server.acceptInvites(this);
+    }
+
+
+    /**
+     * Decline this invite removing it from the invite list.
+     */
+    public void decline() {
         server.removeInvite(this);
     }
-    
 }

src/com/dmdirc/Server.java

@@ -1724,6 +1724,35 @@ public class Server extends WritableFrameContainer<ServerWindow> implements Conf
         }
     }
 
+    /**
+     * Attempts to accept the specified invites, and join the corresponding
+     * channels.
+     *
+     * @param invites The invites to process
+     * @since 0.6.4
+     */
+    public void acceptInvites(final Invite ... invites) {
+        final ChannelJoinRequest[] requests = new ChannelJoinRequest[invites.length];
+
+        for (int i = 0; i < invites.length; i++) {
+            requests[i] = new ChannelJoinRequest(invites[i].getChannel());
+        }
+
+        join(requests);
+    }
+
+    /**
+     * Attempts to accept all active invites for this server, and join the
+     * corresponding channels.
+     *
+     * @since 0.6.4
+     */
+    public void acceptInvites() {
+        synchronized (invites) {
+            acceptInvites(invites.toArray(new Invite[invites.size()]));
+        }
+    }
+
     /**
      * Removes all invites for the specified channel.
      *