support bracketed paste

2 files changed, 48 insertions, 14 deletions

diff --git a/tui/draw.go b/tui/draw.go
index 14f11fa..d30e0eb 100644
--- a/tui/draw.go
+++ b/tui/draw.go
@@ -106,6 +106,7 @@ func Start() error {
 	scr.back = make(surface)
 	_, err = os.Stdout.WriteString(
 		terminfo.Get(caps.EnterCaMode) +
+		"\033[?2004h" + // bracketed paste
 		terminfo.Get(caps.XM, 1) +
 		terminfo.Get(caps.ClearScreen),
 	)
@@ -119,6 +120,7 @@ func End() {
 	os.Stdout.WriteString(
 		terminfo.Get(caps.ClearScreen) +
 		terminfo.Get(caps.XM, 0) +
+		"\033[?2004l" + // disable bracketed paste
 		terminfo.Get(caps.ExitCaMode),
 	)
 	if term.Restore(0, saved) != nil {
diff --git a/tui/event.go b/tui/event.go
index 5ce7c4e..71d2f41 100644
--- a/tui/event.go
+++ b/tui/event.go
@@ -15,19 +15,22 @@ import (
 type Event struct {
 	TextInput rune
 	Key keys.Key
-	Mouse struct {
-		Button int
-		Pressed bool
-		Released bool
-		X, Y int
-		Scroll int
-	}
+	Mouse MouseEvent
 	Err error
 	Resize bool
 }
 
+type MouseEvent struct {
+	Button int
+	Pressed bool
+	Released bool
+	X, Y int
+	Scroll int
+}
+
 var (
 	evChan chan Event = make(chan Event, 1)
+	lastEvent chan Event = make(chan Event, 1)
 	once sync.Once
 )
 func Events() <-chan Event {
@@ -39,19 +42,37 @@ func Events() <-chan Event {
 		signal.Notify(sigs, syscall.SIGWINCH)
 		go func() {
 			for _ = range sigs {
-				evChan <- Event {Resize: true}
+				sendEvent(Event {Resize: true})
 			}
 		}()
 	})
 	return evChan
 }
 
+func sendEvent(ev Event) {
+	select {
+	case lastEvent <- ev:
+	default:
+	}
+	evChan <- ev
+}
+
+func getLastEvent() Event {
+	var ev Event
+	select {
+	case ev = <-lastEvent:
+	default:
+	}
+	return ev
+}
+
 func readKeys(ch <-chan termfo.Event, evChan chan<- Event) {
+	var pasting bool
 	for kev := range ch {
 		var ev Event
 		if kev.Err != nil {
 			ev.Err = kev.Err
-			evChan <- ev
+			sendEvent(ev)
 			return
 		}
 
@@ -64,22 +85,33 @@ func readKeys(ch <-chan termfo.Event, evChan chan<- Event) {
 			}
 			ev.TextInput = r
 		}
-		if kev.Key == keys.Tab {
-			ev.TextInput = '\t'
-		}
 
 		switch kev.Key {
 		case keys.Mouse:
 			if err := parseMouse(&ev, ch); err != nil {
 				ev.Err = err
-				evChan <- ev
+				sendEvent(ev)
 				return
 			}
 		default:
 			ev.Key = kev.Key
 		}
 
-		evChan <- ev
+		if string(kev.Seq) == "\033[200~" {
+			pasting = true
+		}
+		if pasting {
+			switch kev.Seq[0] {
+			case '\n', '\t':
+				ev.TextInput = rune(kev.Seq[0])
+			}
+			ev.Key = 0
+		}
+		if string(kev.Seq) == "\033[201~" {
+			pasting = false
+		}
+
+		sendEvent(ev)
 	}
 }