Finish porting clipboard kitten to Go

tools/tui/loop/api.go

@@ -20,6 +20,16 @@ type ScreenSize struct {
 
 type IdType uint64
 type TimerCallback func(timer_id IdType) error
+type EscapeCodeType int
+
+const (
+	CSI EscapeCodeType = iota
+	DCS
+	OSC
+	APC
+	SOS
+	PM
+)
 
 type timer struct {
 	interval time.Duration
@@ -47,6 +57,8 @@ type Loop struct {
 	pending_writes                         []*write_msg
 	on_SIGTSTP                             func() error
 
+	// Send strings to this channel to queue writes in a thread safe way
+
 	// Callbacks
 
 	// Called when the terminal has been fully setup. Any string returned is sent to
@@ -76,6 +88,9 @@ type Loop struct {
 	// Called when any input from tty is received
 	OnReceivedData func(data []byte) error
 
+	// Called when an escape code is received that is not handled by any other handler
+	OnEscapeCode func(EscapeCodeType, []byte) error
+
 	// Called when resuming from a SIGTSTP or Ctrl-z
 	OnResumeFromStop func() error
 

tools/tui/loop/run.go

@@ -72,6 +72,9 @@ func (self *Loop) handle_csi(raw []byte) error {
 	if ke != nil {
 		return self.handle_key_event(ke)
 	}
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(CSI, raw)
+	}
 	return nil
 }
 
@@ -100,6 +103,9 @@ func (self *Loop) handle_key_event(ev *KeyEvent) error {
 }
 
 func (self *Loop) handle_osc(raw []byte) error {
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(OSC, raw)
+	}
 	return nil
 }
 
@@ -107,18 +113,30 @@ func (self *Loop) handle_dcs(raw []byte) error {
 	if self.OnRCResponse != nil && bytes.HasPrefix(raw, []byte("@kitty-cmd")) {
 		return self.OnRCResponse(raw[len("@kitty-cmd"):])
 	}
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(DCS, raw)
+	}
 	return nil
 }
 
 func (self *Loop) handle_apc(raw []byte) error {
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(APC, raw)
+	}
 	return nil
 }
 
 func (self *Loop) handle_sos(raw []byte) error {
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(SOS, raw)
+	}
 	return nil
 }
 
 func (self *Loop) handle_pm(raw []byte) error {
+	if self.OnEscapeCode != nil {
+		return self.OnEscapeCode(PM, raw)
+	}
 	return nil
 }