Make enabling/disabling state-tracking easier. Improve constructors.

client/connection.go

@@ -66,20 +66,31 @@ type Conn struct {
 
 // Creates a new IRC connection object, but doesn't connect to anything so
 // that you can add event handlers to it. See AddHandler() for details.
-// Dependency injection is a bitch :-/
-func New(nick, user, name string, st bool,
-	r event.EventRegistry, l logging.Logger) *Conn {
-	if r == nil {
-		r = event.NewRegistry()
+func SimpleClient(nick string, args ...string) *Conn {
+	r := event.NewRegistry()
+	l := logging.NewFromFlags()
+	ident := "goirc"
+	name := "Powered by GoIRC"
+
+	if len(args) > 0 && args[0] != "" {
+		ident = args[0]
 	}
-	if l == nil {
-		l = logging.NewFromFlags()
+	if len(args) > 1 && args[1] != "" {
+		name = args[1]
+	}
+	return Client(nick, ident, name, r, l)
+}
+
+func Client(nick, ident, name string,
+	r event.EventRegistry, l logging.Logger) *Conn {
+	if r == nil || l == nil {
+		return nil
 	}
 	conn := &Conn{
 		ER:         r,
 		ED:         r,
 		l:          l,
-		st:         st,
+		st:         false,
 		in:         make(chan *Line, 32),
 		out:        make(chan string, 32),
 		cSend:      make(chan bool),
@@ -92,20 +103,35 @@ func New(nick, user, name string, st bool,
 		lastsent:   0,
 	}
 	conn.addIntHandlers()
-	if st {
-		conn.ST = state.NewTracker(nick, l)
-		conn.Me = conn.ST.Me()
-		conn.addSTHandlers()
-	} else {
-		conn.Me = state.NewNick(nick, l)
-	}
-	conn.Me.Ident = user
+	conn.Me = state.NewNick(nick, l)
+	conn.Me.Ident = ident
 	conn.Me.Name = name
 
 	conn.initialise()
 	return conn
 }
 
+func (conn *Conn) EnableStateTracking() {
+	if !conn.st {
+		n := conn.Me
+		conn.ST = state.NewTracker(n.Nick, conn.l)
+		conn.Me = conn.ST.Me()
+		conn.Me.Ident = n.Ident
+		conn.Me.Name = n.Name
+		conn.addSTHandlers()
+		conn.st = true
+	}
+}
+
+func (conn *Conn) DisableStateTracking() {
+	if conn.st {
+		conn.st = false
+		conn.delSTHandlers()
+		conn.ST.Wipe()
+		conn.ST = nil
+	}
+}
+
 // Per-connection state initialisation.
 func (conn *Conn) initialise() {
 	conn.io = nil

client/connection_test.go

@@ -1,6 +1,7 @@
 package client
 
 import (
+	"github.com/fluffle/goirc/event"
 	"github.com/fluffle/goirc/logging"
 	"github.com/fluffle/goirc/state"
 	"gomock.googlecode.com/hg/gomock"
@@ -20,9 +21,10 @@ type testState struct {
 func setUp(t *testing.T) (*Conn, *testState) {
 	ctrl := gomock.NewController(t)
 	st := state.NewMockStateTracker(ctrl)
+	r := event.NewRegistry()
 	l := logging.NewMockLogger(ctrl)
 	nc := MockNetConn(t)
-	c := New("test", "test", "Testing IRC", false, nil, l)
+	c := Client("test", "test", "Testing IRC", r, l)
 
 	// We don't want to have to specify s.log.EXPECT().Debug() for all the
 	// random crap that gets logged. This mocks it all out nicely.

client/handlers.go

@@ -19,8 +19,10 @@ type IRCHandler func(*Conn, *Line)
 // "PRIVMSG", "JOIN", etc. but all the numeric replies are left as ascii
 // strings of digits like "332" (mainly because I really didn't feel like
 // putting massive constant tables in).
-func (conn *Conn) AddHandler(name string, f IRCHandler) {
-	conn.ER.AddHandler(name, NewHandler(f))
+func (conn *Conn) AddHandler(name string, f IRCHandler) event.Handler {
+	h := NewHandler(f)
+	conn.ER.AddHandler(h, name)
+	return h
 }
 
 // Wrap f in an anonymous unboxing function

client/state_handlers.go

@@ -4,24 +4,39 @@ package client
 // to manage tracking state for an IRC connection
 
 import (
+	"github.com/fluffle/goirc/event"
 	"strings"
 )
 
-func (conn *Conn) addSTHandlers() {
-	conn.AddHandler("JOIN", (*Conn).h_JOIN)
-	conn.AddHandler("KICK", (*Conn).h_KICK)
-	conn.AddHandler("MODE", (*Conn).h_MODE)
-	conn.AddHandler("NICK", (*Conn).h_STNICK)
-	conn.AddHandler("PART", (*Conn).h_PART)
-	conn.AddHandler("QUIT", (*Conn).h_QUIT)
-	conn.AddHandler("TOPIC", (*Conn).h_TOPIC)
+var stHandlers map[string]event.Handler
 
-	conn.AddHandler("311", (*Conn).h_311)
-	conn.AddHandler("324", (*Conn).h_324)
-	conn.AddHandler("332", (*Conn).h_332)
-	conn.AddHandler("352", (*Conn).h_352)
-	conn.AddHandler("353", (*Conn).h_353)
-	conn.AddHandler("671", (*Conn).h_671)
+func init() {
+	stHandlers = make(map[string]event.Handler)
+	stHandlers["JOIN"] = NewHandler((*Conn).h_JOIN)
+	stHandlers["KICK"] = NewHandler((*Conn).h_KICK)
+	stHandlers["MODE"] = NewHandler((*Conn).h_MODE)
+	stHandlers["NICK"] = NewHandler((*Conn).h_STNICK)
+	stHandlers["PART"] = NewHandler((*Conn).h_PART)
+	stHandlers["QUIT"] = NewHandler((*Conn).h_QUIT)
+	stHandlers["TOPIC"] = NewHandler((*Conn).h_TOPIC)
+	stHandlers["311"] = NewHandler((*Conn).h_311)
+	stHandlers["324"] = NewHandler((*Conn).h_324)
+	stHandlers["332"] = NewHandler((*Conn).h_332)
+	stHandlers["352"] = NewHandler((*Conn).h_352)
+	stHandlers["353"] = NewHandler((*Conn).h_353)
+	stHandlers["671"] = NewHandler((*Conn).h_671)
+}
+
+func (conn *Conn) addSTHandlers() {
+	for n, h := range stHandlers {
+		conn.ER.AddHandler(h, n)
+	}
+}
+
+func (conn *Conn) delSTHandlers() {
+	for n, h := range stHandlers {
+		conn.ER.DelHandler(h, n)
+	}
 }
 
 // Handle NICK messages that need to update the state tracker